feat: add display UI with splash screen, dashboard, and RSSI sparkline

Implement full SSD1306 OLED display support:
- Splash screen on boot (1.5s) with project name, version, board
- Dashboard showing radio state, config, counters, RSSI/SNR
- RSSI history sparkline (64-sample ring buffer, 2px-wide bars)
- DisplayOn/DisplayOff host commands routed via dedicated channel
- Pure render functions against generic DrawTarget (no hardware coupling)
- Display on/off control bypasses radio task entirely

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

vendor/toml_edit/src/array.rs

@@ -0,0 +1,442 @@
+use std::iter::FromIterator;
+use std::mem;
+
+use crate::repr::Decor;
+use crate::value::{DEFAULT_LEADING_VALUE_DECOR, DEFAULT_VALUE_DECOR};
+use crate::{Item, RawString, Value};
+
+/// A TOML [`Value`] that contains a sequence of [`Value`]s
+#[derive(Debug, Default, Clone)]
+pub struct Array {
+    // `trailing` represents whitespaces, newlines
+    // and comments in an empty array or after the trailing comma
+    trailing: RawString,
+    trailing_comma: bool,
+    // prefix before `[` and suffix after `]`
+    decor: Decor,
+    pub(crate) span: Option<std::ops::Range<usize>>,
+    // always Vec<Item::Value>
+    pub(crate) values: Vec<Item>,
+}
+
+/// An owned iterator type over [`Array`]'s [`Value`]s
+pub type ArrayIntoIter = Box<dyn Iterator<Item = Value>>;
+/// An iterator type over [`Array`]'s [`Value`]s
+pub type ArrayIter<'a> = Box<dyn Iterator<Item = &'a Value> + 'a>;
+/// An iterator type over [`Array`]'s [`Value`]s
+pub type ArrayIterMut<'a> = Box<dyn Iterator<Item = &'a mut Value> + 'a>;
+
+/// Constructors
+///
+/// See also `FromIterator`
+impl Array {
+    /// Create an empty `Array`
+    ///
+    /// # Examples
+    ///
+    /// ```rust
+    /// let mut arr = toml_edit::Array::new();
+    /// ```
+    pub fn new() -> Self {
+        Default::default()
+    }
+
+    pub(crate) fn with_vec(values: Vec<Item>) -> Self {
+        Self {
+            values,
+            ..Default::default()
+        }
+    }
+}
+
+/// Formatting
+impl Array {
+    /// Auto formats the array.
+    pub fn fmt(&mut self) {
+        decorate_array(self);
+    }
+
+    /// Set whether the array will use a trailing comma
+    pub fn set_trailing_comma(&mut self, yes: bool) {
+        self.trailing_comma = yes;
+    }
+
+    /// Whether the array will use a trailing comma
+    pub fn trailing_comma(&self) -> bool {
+        self.trailing_comma
+    }
+
+    /// Set whitespace after last element
+    pub fn set_trailing(&mut self, trailing: impl Into<RawString>) {
+        self.trailing = trailing.into();
+    }
+
+    /// Whitespace after last element
+    pub fn trailing(&self) -> &RawString {
+        &self.trailing
+    }
+
+    /// Returns the surrounding whitespace
+    pub fn decor_mut(&mut self) -> &mut Decor {
+        &mut self.decor
+    }
+
+    /// Returns the surrounding whitespace
+    pub fn decor(&self) -> &Decor {
+        &self.decor
+    }
+
+    /// The location within the original document
+    ///
+    /// This generally requires a [`Document`][crate::Document].
+    pub fn span(&self) -> Option<std::ops::Range<usize>> {
+        self.span.clone()
+    }
+
+    pub(crate) fn despan(&mut self, input: &str) {
+        self.span = None;
+        self.decor.despan(input);
+        self.trailing.despan(input);
+        for value in &mut self.values {
+            value.despan(input);
+        }
+    }
+}
+
+impl Array {
+    /// Returns an iterator over all values.
+    pub fn iter(&self) -> ArrayIter<'_> {
+        Box::new(self.values.iter().filter_map(Item::as_value))
+    }
+
+    /// Returns an iterator over all values.
+    pub fn iter_mut(&mut self) -> ArrayIterMut<'_> {
+        Box::new(self.values.iter_mut().filter_map(Item::as_value_mut))
+    }
+
+    /// Returns the length of the underlying Vec.
+    ///
+    /// In some rare cases, placeholder elements will exist.  For a more accurate count, call
+    /// `a.iter().count()`
+    ///
+    /// # Examples
+    ///
+    /// ```rust
+    /// let mut arr = toml_edit::Array::new();
+    /// arr.push(1);
+    /// arr.push("foo");
+    /// assert_eq!(arr.len(), 2);
+    /// ```
+    pub fn len(&self) -> usize {
+        self.values.len()
+    }
+
+    /// Return true if `self.len() == 0`.
+    ///
+    /// # Examples
+    ///
+    /// ```rust
+    /// let mut arr = toml_edit::Array::new();
+    /// assert!(arr.is_empty());
+    ///
+    /// arr.push(1);
+    /// arr.push("foo");
+    /// assert!(! arr.is_empty());
+    /// ```
+    pub fn is_empty(&self) -> bool {
+        self.len() == 0
+    }
+
+    /// Clears the array, removing all values. Keeps the allocated memory for reuse.
+    pub fn clear(&mut self) {
+        self.values.clear();
+    }
+
+    /// Returns a reference to the value at the given index, or `None` if the index is out of
+    /// bounds.
+    pub fn get(&self, index: usize) -> Option<&Value> {
+        self.values.get(index).and_then(Item::as_value)
+    }
+
+    /// Returns a reference to the value at the given index, or `None` if the index is out of
+    /// bounds.
+    pub fn get_mut(&mut self, index: usize) -> Option<&mut Value> {
+        self.values.get_mut(index).and_then(Item::as_value_mut)
+    }
+
+    /// Appends a new value to the end of the array, applying default formatting to it.
+    ///
+    /// # Examples
+    ///
+    /// ```rust
+    /// let mut arr = toml_edit::Array::new();
+    /// arr.push(1);
+    /// arr.push("foo");
+    /// ```
+    pub fn push<V: Into<Value>>(&mut self, v: V) {
+        self.values.push(Item::Value(v.into()));
+    }
+
+    /// Appends a new, already formatted value to the end of the array.
+    ///
+    /// # Examples
+    ///
+    /// ```rust
+    /// # #[cfg(feature = "parse")] {
+    /// let formatted_value = "'literal'".parse::<toml_edit::Value>().unwrap();
+    /// let mut arr = toml_edit::Array::new();
+    /// arr.push_formatted(formatted_value);
+    /// # }
+    /// ```
+    pub fn push_formatted(&mut self, v: Value) {
+        self.values.push(Item::Value(v));
+    }
+
+    /// Inserts an element at the given position within the array, applying default formatting to
+    /// it and shifting all values after it to the right.
+    ///
+    /// # Panics
+    ///
+    /// Panics if `index > len`.
+    ///
+    /// # Examples
+    ///
+    /// ```rust
+    /// let mut arr = toml_edit::Array::new();
+    /// arr.push(1);
+    /// arr.push("foo");
+    ///
+    /// arr.insert(0, "start");
+    /// ```
+    pub fn insert<V: Into<Value>>(&mut self, index: usize, v: V) {
+        self.values.insert(index, Item::Value(v.into()));
+    }
+
+    /// Inserts an already formatted value at the given position within the array, shifting all
+    /// values after it to the right.
+    ///
+    /// # Panics
+    ///
+    /// Panics if `index > len`.
+    ///
+    /// # Examples
+    ///
+    /// ```rust
+    /// # #[cfg(feature = "parse")] {
+    /// let mut arr = toml_edit::Array::new();
+    /// arr.push(1);
+    /// arr.push("foo");
+    ///
+    /// let formatted_value = "'start'".parse::<toml_edit::Value>().unwrap();
+    /// arr.insert_formatted(0, formatted_value);
+    /// # }
+    /// ```
+    pub fn insert_formatted(&mut self, index: usize, v: Value) {
+        self.values.insert(index, Item::Value(v));
+    }
+
+    /// Replaces the element at the given position within the array, preserving existing formatting.
+    ///
+    /// # Panics
+    ///
+    /// Panics if `index >= len`.
+    ///
+    /// # Examples
+    ///
+    /// ```rust
+    /// let mut arr = toml_edit::Array::new();
+    /// arr.push(1);
+    /// arr.push("foo");
+    ///
+    /// arr.replace(0, "start");
+    /// ```
+    pub fn replace<V: Into<Value>>(&mut self, index: usize, v: V) -> Value {
+        // Read the existing value's decor and preserve it.
+        let existing_decor = self
+            .get(index)
+            .unwrap_or_else(|| panic!("index {} out of bounds (len = {})", index, self.len()))
+            .decor();
+        let mut value = v.into();
+        *value.decor_mut() = existing_decor.clone();
+        self.replace_formatted(index, value)
+    }
+
+    /// Replaces the element at the given position within the array with an already formatted value.
+    ///
+    /// # Panics
+    ///
+    /// Panics if `index >= len`.
+    ///
+    /// # Examples
+    ///
+    /// ```rust
+    /// # #[cfg(feature = "parse")] {
+    /// let mut arr = toml_edit::Array::new();
+    /// arr.push(1);
+    /// arr.push("foo");
+    ///
+    /// let formatted_value = "'start'".parse::<toml_edit::Value>().unwrap();
+    /// arr.replace_formatted(0, formatted_value);
+    /// # }
+    /// ```
+    pub fn replace_formatted(&mut self, index: usize, v: Value) -> Value {
+        match mem::replace(&mut self.values[index], Item::Value(v)) {
+            Item::Value(old_value) => old_value,
+            x => panic!("non-value item {x:?} in an array"),
+        }
+    }
+
+    /// Removes the value at the given index.
+    ///
+    /// # Examples
+    ///
+    /// ```rust
+    /// let mut arr = toml_edit::Array::new();
+    /// arr.push(1);
+    /// arr.push("foo");
+    ///
+    /// arr.remove(0);
+    /// assert_eq!(arr.len(), 1);
+    /// ```
+    pub fn remove(&mut self, index: usize) -> Value {
+        let removed = self.values.remove(index);
+        match removed {
+            Item::Value(v) => v,
+            x => panic!("non-value item {x:?} in an array"),
+        }
+    }
+
+    /// Retains only the values specified by the `keep` predicate.
+    ///
+    /// In other words, remove all values for which `keep(&value)` returns `false`.
+    ///
+    /// This method operates in place, visiting each element exactly once in the
+    /// original order, and preserves the order of the retained elements.
+    pub fn retain<F>(&mut self, mut keep: F)
+    where
+        F: FnMut(&Value) -> bool,
+    {
+        self.values
+            .retain(|item| item.as_value().map(&mut keep).unwrap_or(false));
+    }
+
+    /// Sorts the slice with a comparator function.
+    ///
+    /// This sort is stable (i.e., does not reorder equal elements) and *O*(*n* \* log(*n*)) worst-case.
+    ///
+    /// The comparator function must define a total ordering for the elements in the slice. If
+    /// the ordering is not total, the order of the elements is unspecified. An order is a
+    /// total order if it is (for all `a`, `b` and `c`):
+    ///
+    /// * total and antisymmetric: exactly one of `a < b`, `a == b` or `a > b` is true, and
+    /// * transitive, `a < b` and `b < c` implies `a < c`. The same must hold for both `==` and `>`.
+    ///
+    /// For example, while [`f64`] doesn't implement [`Ord`] because `NaN != NaN`, we can use
+    /// `partial_cmp` as our sort function when we know the slice doesn't contain a `NaN`.
+    #[inline]
+    pub fn sort_by<F>(&mut self, mut compare: F)
+    where
+        F: FnMut(&Value, &Value) -> std::cmp::Ordering,
+    {
+        self.values.sort_by(move |lhs, rhs| {
+            let lhs = lhs.as_value();
+            let rhs = rhs.as_value();
+            match (lhs, rhs) {
+                (None, None) => std::cmp::Ordering::Equal,
+                (Some(_), None) => std::cmp::Ordering::Greater,
+                (None, Some(_)) => std::cmp::Ordering::Less,
+                (Some(lhs), Some(rhs)) => compare(lhs, rhs),
+            }
+        });
+    }
+
+    /// Sorts the array with a key extraction function.
+    ///
+    /// This sort is stable (i.e., does not reorder equal elements) and *O*(*m* \* *n* \* log(*n*))
+    /// worst-case, where the key function is *O*(*m*).
+    #[inline]
+    pub fn sort_by_key<K, F>(&mut self, mut f: F)
+    where
+        F: FnMut(&Value) -> K,
+        K: Ord,
+    {
+        #[allow(clippy::manual_map)] // needed for lifetimes
+        self.values.sort_by_key(move |item| {
+            if let Some(value) = item.as_value() {
+                Some(f(value))
+            } else {
+                None
+            }
+        });
+    }
+}
+
+#[cfg(feature = "display")]
+impl std::fmt::Display for Array {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        crate::encode::encode_array(self, f, None, ("", ""))
+    }
+}
+
+impl<V: Into<Value>> Extend<V> for Array {
+    fn extend<T: IntoIterator<Item = V>>(&mut self, iter: T) {
+        for value in iter {
+            self.push_formatted(value.into());
+        }
+    }
+}
+
+impl<V: Into<Value>> FromIterator<V> for Array {
+    fn from_iter<I>(iter: I) -> Self
+    where
+        I: IntoIterator<Item = V>,
+    {
+        let v = iter.into_iter().map(|a| Item::Value(a.into()));
+        Self {
+            values: v.collect(),
+            ..Default::default()
+        }
+    }
+}
+
+impl IntoIterator for Array {
+    type Item = Value;
+    type IntoIter = ArrayIntoIter;
+
+    fn into_iter(self) -> Self::IntoIter {
+        Box::new(
+            self.values
+                .into_iter()
+                .filter(|v| v.is_value())
+                .map(|v| v.into_value().unwrap()),
+        )
+    }
+}
+
+impl<'s> IntoIterator for &'s Array {
+    type Item = &'s Value;
+    type IntoIter = ArrayIter<'s>;
+
+    fn into_iter(self) -> Self::IntoIter {
+        self.iter()
+    }
+}
+
+fn decorate_array(array: &mut Array) {
+    for (i, value) in array
+        .values
+        .iter_mut()
+        .filter_map(Item::as_value_mut)
+        .enumerate()
+    {
+        // [value1, value2, value3]
+        if i == 0 {
+            value.decorate(DEFAULT_LEADING_VALUE_DECOR.0, DEFAULT_LEADING_VALUE_DECOR.1);
+        } else {
+            value.decorate(DEFAULT_VALUE_DECOR.0, DEFAULT_VALUE_DECOR.1);
+        }
+    }
+    // Since everything is now on the same line, remove trailing commas and whitespace.
+    array.set_trailing_comma(false);
+    array.set_trailing("");
+}

vendor/toml_edit/src/array_of_tables.rs

@@ -0,0 +1,182 @@
+use std::iter::FromIterator;
+
+use crate::{Array, Item, Table};
+
+/// A top-level sequence of [`Table`]s, each under their own header
+#[derive(Clone, Debug, Default)]
+pub struct ArrayOfTables {
+    // Always Vec<Item::Table>, just `Item` to make `Index` work
+    pub(crate) span: Option<std::ops::Range<usize>>,
+    pub(crate) values: Vec<Item>,
+}
+
+/// Constructors
+///
+/// See also `FromIterator`
+impl ArrayOfTables {
+    /// Creates an empty array of tables.
+    pub fn new() -> Self {
+        Default::default()
+    }
+}
+
+/// Formatting
+impl ArrayOfTables {
+    /// Convert to an inline array
+    pub fn into_array(mut self) -> Array {
+        for value in self.values.iter_mut() {
+            value.make_value();
+        }
+        let mut a = Array::with_vec(self.values);
+        a.fmt();
+        a
+    }
+
+    /// The location within the original document
+    ///
+    /// This generally requires a [`Document`][crate::Document].
+    pub fn span(&self) -> Option<std::ops::Range<usize>> {
+        self.span.clone()
+    }
+
+    pub(crate) fn despan(&mut self, input: &str) {
+        self.span = None;
+        for value in &mut self.values {
+            value.despan(input);
+        }
+    }
+}
+
+impl ArrayOfTables {
+    /// Returns an iterator over tables.
+    pub fn iter(&self) -> ArrayOfTablesIter<'_> {
+        Box::new(self.values.iter().filter_map(Item::as_table))
+    }
+
+    /// Returns an iterator over tables.
+    pub fn iter_mut(&mut self) -> ArrayOfTablesIterMut<'_> {
+        Box::new(self.values.iter_mut().filter_map(Item::as_table_mut))
+    }
+
+    /// Returns the length of the underlying Vec.
+    /// To get the actual number of items use `a.iter().count()`.
+    pub fn len(&self) -> usize {
+        self.values.len()
+    }
+
+    /// Returns true if `self.len() == 0`.
+    pub fn is_empty(&self) -> bool {
+        self.len() == 0
+    }
+
+    /// Removes all the tables.
+    pub fn clear(&mut self) {
+        self.values.clear();
+    }
+
+    /// Returns an optional reference to the table.
+    pub fn get(&self, index: usize) -> Option<&Table> {
+        self.values.get(index).and_then(Item::as_table)
+    }
+
+    /// Returns an optional mutable reference to the table.
+    pub fn get_mut(&mut self, index: usize) -> Option<&mut Table> {
+        self.values.get_mut(index).and_then(Item::as_table_mut)
+    }
+
+    /// Appends a table to the array.
+    pub fn push(&mut self, table: Table) {
+        self.values.push(Item::Table(table));
+    }
+
+    /// Inserts a table at the given index within the array, shifting all
+    /// tables after it to the right.
+    ///
+    /// # Panics
+    ///
+    /// Panics if `index > len`.
+    pub fn insert(&mut self, index: usize, table: Table) {
+        self.values.insert(index, Item::Table(table));
+    }
+
+    /// Removes a table with the given index.
+    pub fn remove(&mut self, index: usize) -> Table {
+        self.values
+            .remove(index)
+            .into_table()
+            .expect("cannot have any other item in an array-of-tables")
+    }
+
+    /// Retains only the elements specified by the `keep` predicate.
+    ///
+    /// In other words, remove all tables for which `keep(&table)` returns `false`.
+    ///
+    /// This method operates in place, visiting each element exactly once in the
+    /// original order, and preserves the order of the retained elements.
+    pub fn retain<F>(&mut self, mut keep: F)
+    where
+        F: FnMut(&Table) -> bool,
+    {
+        self.values
+            .retain(|item| item.as_table().map(&mut keep).unwrap_or(false));
+    }
+}
+
+/// An iterator type over [`ArrayOfTables`]'s [`Table`]s
+pub type ArrayOfTablesIter<'a> = Box<dyn Iterator<Item = &'a Table> + 'a>;
+/// An iterator type over [`ArrayOfTables`]'s [`Table`]s
+pub type ArrayOfTablesIterMut<'a> = Box<dyn Iterator<Item = &'a mut Table> + 'a>;
+/// An iterator type over [`ArrayOfTables`]'s [`Table`]s
+pub type ArrayOfTablesIntoIter = Box<dyn Iterator<Item = Table>>;
+
+impl Extend<Table> for ArrayOfTables {
+    fn extend<T: IntoIterator<Item = Table>>(&mut self, iter: T) {
+        for value in iter {
+            self.push(value);
+        }
+    }
+}
+
+impl FromIterator<Table> for ArrayOfTables {
+    fn from_iter<I>(iter: I) -> Self
+    where
+        I: IntoIterator<Item = Table>,
+    {
+        let v = iter.into_iter().map(Item::Table);
+        Self {
+            values: v.collect(),
+            span: None,
+        }
+    }
+}
+
+impl IntoIterator for ArrayOfTables {
+    type Item = Table;
+    type IntoIter = ArrayOfTablesIntoIter;
+
+    fn into_iter(self) -> Self::IntoIter {
+        Box::new(
+            self.values
+                .into_iter()
+                .filter(|v| v.is_table())
+                .map(|v| v.into_table().unwrap()),
+        )
+    }
+}
+
+impl<'s> IntoIterator for &'s ArrayOfTables {
+    type Item = &'s Table;
+    type IntoIter = ArrayOfTablesIter<'s>;
+
+    fn into_iter(self) -> Self::IntoIter {
+        self.iter()
+    }
+}
+
+#[cfg(feature = "display")]
+impl std::fmt::Display for ArrayOfTables {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        // HACK: Without the header, we don't really have a proper way of printing this
+        self.clone().into_array().fmt(f)
+    }
+}

vendor/toml_edit/src/de/array.rs

@@ -0,0 +1,87 @@
+use crate::de::Error;
+
+pub(crate) struct ArrayDeserializer {
+    input: Vec<crate::Item>,
+    span: Option<std::ops::Range<usize>>,
+}
+
+impl ArrayDeserializer {
+    pub(crate) fn new(input: Vec<crate::Item>, span: Option<std::ops::Range<usize>>) -> Self {
+        Self { input, span }
+    }
+}
+
+impl<'de> serde_core::Deserializer<'de> for ArrayDeserializer {
+    type Error = Error;
+
+    fn deserialize_any<V>(self, visitor: V) -> Result<V::Value, Self::Error>
+    where
+        V: serde_core::de::Visitor<'de>,
+    {
+        visitor.visit_seq(ArraySeqAccess::new(self.input))
+    }
+
+    fn deserialize_struct<V>(
+        self,
+        name: &'static str,
+        _fields: &'static [&'static str],
+        visitor: V,
+    ) -> Result<V::Value, Error>
+    where
+        V: serde_core::de::Visitor<'de>,
+    {
+        if serde_spanned::de::is_spanned(name) {
+            if let Some(span) = self.span.clone() {
+                return visitor.visit_map(
+                    serde_spanned::de::SpannedDeserializer::<Self, Error>::new(self, span),
+                );
+            } else {
+                return Err(Error::custom("value is missing a span", None));
+            }
+        }
+
+        self.deserialize_any(visitor)
+    }
+
+    serde_core::forward_to_deserialize_any! {
+        bool u8 u16 u32 u64 i8 i16 i32 i64 f32 f64 char str string seq
+        bytes byte_buf map option unit newtype_struct
+        ignored_any unit_struct tuple_struct tuple enum identifier
+    }
+}
+
+impl serde_core::de::IntoDeserializer<'_, Error> for ArrayDeserializer {
+    type Deserializer = Self;
+
+    fn into_deserializer(self) -> Self::Deserializer {
+        self
+    }
+}
+
+pub(crate) struct ArraySeqAccess {
+    iter: std::vec::IntoIter<crate::Item>,
+}
+
+impl ArraySeqAccess {
+    pub(crate) fn new(input: Vec<crate::Item>) -> Self {
+        Self {
+            iter: input.into_iter(),
+        }
+    }
+}
+
+impl<'de> serde_core::de::SeqAccess<'de> for ArraySeqAccess {
+    type Error = Error;
+
+    fn next_element_seed<T>(&mut self, seed: T) -> Result<Option<T::Value>, Self::Error>
+    where
+        T: serde_core::de::DeserializeSeed<'de>,
+    {
+        match self.iter.next() {
+            Some(v) => seed
+                .deserialize(crate::de::ValueDeserializer::new(v))
+                .map(Some),
+            None => Ok(None),
+        }
+    }
+}

vendor/toml_edit/src/de/error.rs

@@ -0,0 +1,75 @@
+/// Errors that can occur when deserializing a type.
+#[derive(Clone, PartialEq, Eq, Hash)]
+pub struct Error {
+    inner: crate::TomlError,
+}
+
+impl Error {
+    pub(crate) fn custom<T>(msg: T, span: Option<std::ops::Range<usize>>) -> Self
+    where
+        T: std::fmt::Display,
+    {
+        Self {
+            inner: crate::TomlError::custom(msg.to_string(), span),
+        }
+    }
+
+    /// Add key while unwinding
+    pub fn add_key(&mut self, key: String) {
+        self.inner.add_key(key);
+    }
+
+    /// What went wrong
+    pub fn message(&self) -> &str {
+        self.inner.message()
+    }
+
+    /// The start/end index into the original document where the error occurred
+    pub fn span(&self) -> Option<std::ops::Range<usize>> {
+        self.inner.span()
+    }
+
+    pub(crate) fn set_span(&mut self, span: Option<std::ops::Range<usize>>) {
+        self.inner.set_span(span);
+    }
+
+    /// Provide the encoded TOML the error applies to
+    pub fn set_input(&mut self, input: Option<&str>) {
+        self.inner.set_input(input);
+    }
+}
+
+impl serde_core::de::Error for Error {
+    fn custom<T>(msg: T) -> Self
+    where
+        T: std::fmt::Display,
+    {
+        Self::custom(msg, None)
+    }
+}
+
+impl std::fmt::Display for Error {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        self.inner.fmt(f)
+    }
+}
+
+impl std::fmt::Debug for Error {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        self.inner.fmt(f)
+    }
+}
+
+impl From<crate::TomlError> for Error {
+    fn from(e: crate::TomlError) -> Self {
+        Self { inner: e }
+    }
+}
+
+impl From<Error> for crate::TomlError {
+    fn from(e: Error) -> Self {
+        e.inner
+    }
+}
+
+impl std::error::Error for Error {}

vendor/toml_edit/src/de/key.rs

@@ -0,0 +1,290 @@
+use serde_core::de::IntoDeserializer;
+
+use super::Error;
+
+pub(crate) struct KeyDeserializer {
+    span: Option<std::ops::Range<usize>>,
+    key: crate::Key,
+}
+
+impl KeyDeserializer {
+    pub(crate) fn new(key: crate::Key, span: Option<std::ops::Range<usize>>) -> Self {
+        Self { span, key }
+    }
+}
+
+impl IntoDeserializer<'_, Error> for KeyDeserializer {
+    type Deserializer = Self;
+
+    fn into_deserializer(self) -> Self::Deserializer {
+        self
+    }
+}
+
+impl<'de> serde_core::de::Deserializer<'de> for KeyDeserializer {
+    type Error = Error;
+
+    fn deserialize_any<V>(self, visitor: V) -> Result<V::Value, Error>
+    where
+        V: serde_core::de::Visitor<'de>,
+    {
+        self.key.into_deserializer().deserialize_any(visitor)
+    }
+
+    fn deserialize_bool<V>(self, visitor: V) -> Result<V::Value, Self::Error>
+    where
+        V: serde_core::de::Visitor<'de>,
+    {
+        let key: bool = self
+            .key
+            .parse()
+            .map_err(<Error as serde_core::de::Error>::custom)?;
+        key.into_deserializer().deserialize_bool(visitor)
+    }
+
+    fn deserialize_i8<V>(self, visitor: V) -> Result<V::Value, Self::Error>
+    where
+        V: serde_core::de::Visitor<'de>,
+    {
+        let key: i8 = self
+            .key
+            .parse()
+            .map_err(<Error as serde_core::de::Error>::custom)?;
+        key.into_deserializer().deserialize_i8(visitor)
+    }
+
+    fn deserialize_i16<V>(self, visitor: V) -> Result<V::Value, Self::Error>
+    where
+        V: serde_core::de::Visitor<'de>,
+    {
+        let key: i16 = self
+            .key
+            .parse()
+            .map_err(<Error as serde_core::de::Error>::custom)?;
+        key.into_deserializer().deserialize_i16(visitor)
+    }
+
+    fn deserialize_i32<V>(self, visitor: V) -> Result<V::Value, Self::Error>
+    where
+        V: serde_core::de::Visitor<'de>,
+    {
+        let key: i32 = self
+            .key
+            .parse()
+            .map_err(<Error as serde_core::de::Error>::custom)?;
+        key.into_deserializer().deserialize_i32(visitor)
+    }
+
+    fn deserialize_i64<V>(self, visitor: V) -> Result<V::Value, Self::Error>
+    where
+        V: serde_core::de::Visitor<'de>,
+    {
+        let key: i64 = self
+            .key
+            .parse()
+            .map_err(<Error as serde_core::de::Error>::custom)?;
+        key.into_deserializer().deserialize_i64(visitor)
+    }
+
+    fn deserialize_i128<V>(self, visitor: V) -> Result<V::Value, Self::Error>
+    where
+        V: serde_core::de::Visitor<'de>,
+    {
+        let key: i128 = self
+            .key
+            .parse()
+            .map_err(<Error as serde_core::de::Error>::custom)?;
+        key.into_deserializer().deserialize_i128(visitor)
+    }
+
+    fn deserialize_u8<V>(self, visitor: V) -> Result<V::Value, Self::Error>
+    where
+        V: serde_core::de::Visitor<'de>,
+    {
+        let key: u8 = self
+            .key
+            .parse()
+            .map_err(<Error as serde_core::de::Error>::custom)?;
+        key.into_deserializer().deserialize_u8(visitor)
+    }
+
+    fn deserialize_u16<V>(self, visitor: V) -> Result<V::Value, Self::Error>
+    where
+        V: serde_core::de::Visitor<'de>,
+    {
+        let key: u16 = self
+            .key
+            .parse()
+            .map_err(<Error as serde_core::de::Error>::custom)?;
+        key.into_deserializer().deserialize_u16(visitor)
+    }
+
+    fn deserialize_u32<V>(self, visitor: V) -> Result<V::Value, Self::Error>
+    where
+        V: serde_core::de::Visitor<'de>,
+    {
+        let key: u32 = self
+            .key
+            .parse()
+            .map_err(<Error as serde_core::de::Error>::custom)?;
+        key.into_deserializer().deserialize_u32(visitor)
+    }
+
+    fn deserialize_u64<V>(self, visitor: V) -> Result<V::Value, Self::Error>
+    where
+        V: serde_core::de::Visitor<'de>,
+    {
+        let key: u64 = self
+            .key
+            .parse()
+            .map_err(<Error as serde_core::de::Error>::custom)?;
+        key.into_deserializer().deserialize_u64(visitor)
+    }
+
+    fn deserialize_u128<V>(self, visitor: V) -> Result<V::Value, Self::Error>
+    where
+        V: serde_core::de::Visitor<'de>,
+    {
+        let key: u128 = self
+            .key
+            .parse()
+            .map_err(<Error as serde_core::de::Error>::custom)?;
+        key.into_deserializer().deserialize_u128(visitor)
+    }
+
+    fn deserialize_char<V>(self, visitor: V) -> Result<V::Value, Self::Error>
+    where
+        V: serde_core::de::Visitor<'de>,
+    {
+        let key: char = self
+            .key
+            .parse()
+            .map_err(<Error as serde_core::de::Error>::custom)?;
+        key.into_deserializer().deserialize_char(visitor)
+    }
+
+    fn deserialize_enum<V>(
+        self,
+        name: &str,
+        variants: &'static [&'static str],
+        visitor: V,
+    ) -> Result<V::Value, Self::Error>
+    where
+        V: serde_core::de::Visitor<'de>,
+    {
+        let _ = name;
+        let _ = variants;
+        visitor.visit_enum(self)
+    }
+
+    fn deserialize_struct<V>(
+        self,
+        name: &'static str,
+        _fields: &'static [&'static str],
+        visitor: V,
+    ) -> Result<V::Value, Error>
+    where
+        V: serde_core::de::Visitor<'de>,
+    {
+        if serde_spanned::de::is_spanned(name) {
+            if let Some(span) = self.span.clone() {
+                return visitor.visit_map(
+                    serde_spanned::de::SpannedDeserializer::<&str, Error>::new(
+                        self.key.get(),
+                        span,
+                    ),
+                );
+            } else {
+                return Err(Error::custom("value is missing a span", None));
+            }
+        }
+        self.deserialize_any(visitor)
+    }
+
+    fn deserialize_newtype_struct<V>(
+        self,
+        _name: &'static str,
+        visitor: V,
+    ) -> Result<V::Value, Error>
+    where
+        V: serde_core::de::Visitor<'de>,
+    {
+        visitor.visit_newtype_struct(self)
+    }
+
+    serde_core::forward_to_deserialize_any! {
+        f32 f64 str string seq
+        bytes byte_buf map option unit
+        ignored_any unit_struct tuple_struct tuple identifier
+    }
+}
+
+impl<'de> serde_core::de::EnumAccess<'de> for KeyDeserializer {
+    type Error = Error;
+    type Variant = UnitOnly<Self::Error>;
+
+    fn variant_seed<T>(self, seed: T) -> Result<(T::Value, Self::Variant), Self::Error>
+    where
+        T: serde_core::de::DeserializeSeed<'de>,
+    {
+        seed.deserialize(self).map(unit_only)
+    }
+}
+
+pub(crate) struct UnitOnly<E> {
+    marker: std::marker::PhantomData<E>,
+}
+
+fn unit_only<T, E>(t: T) -> (T, UnitOnly<E>) {
+    (
+        t,
+        UnitOnly {
+            marker: std::marker::PhantomData,
+        },
+    )
+}
+
+impl<'de, E> serde_core::de::VariantAccess<'de> for UnitOnly<E>
+where
+    E: serde_core::de::Error,
+{
+    type Error = E;
+
+    fn unit_variant(self) -> Result<(), Self::Error> {
+        Ok(())
+    }
+
+    fn newtype_variant_seed<T>(self, _seed: T) -> Result<T::Value, Self::Error>
+    where
+        T: serde_core::de::DeserializeSeed<'de>,
+    {
+        Err(serde_core::de::Error::invalid_type(
+            serde_core::de::Unexpected::UnitVariant,
+            &"newtype variant",
+        ))
+    }
+
+    fn tuple_variant<V>(self, _len: usize, _visitor: V) -> Result<V::Value, Self::Error>
+    where
+        V: serde_core::de::Visitor<'de>,
+    {
+        Err(serde_core::de::Error::invalid_type(
+            serde_core::de::Unexpected::UnitVariant,
+            &"tuple variant",
+        ))
+    }
+
+    fn struct_variant<V>(
+        self,
+        _fields: &'static [&'static str],
+        _visitor: V,
+    ) -> Result<V::Value, Self::Error>
+    where
+        V: serde_core::de::Visitor<'de>,
+    {
+        Err(serde_core::de::Error::invalid_type(
+            serde_core::de::Unexpected::UnitVariant,
+            &"struct variant",
+        ))
+    }
+}

vendor/toml_edit/src/de/mod.rs

@@ -0,0 +1,250 @@
+//! Deserializing TOML into Rust structures.
+//!
+//! This module contains all the Serde support for deserializing TOML documents into Rust structures.
+
+use serde_core::de::DeserializeOwned;
+
+mod array;
+mod error;
+mod key;
+mod table;
+mod table_enum;
+mod value;
+
+use array::ArrayDeserializer;
+use key::KeyDeserializer;
+use table::TableDeserializer;
+use table_enum::TableEnumDeserializer;
+use toml_datetime::de::DatetimeDeserializer;
+
+pub use error::Error;
+pub use value::ValueDeserializer;
+
+/// Deserializes a string into a type.
+///
+/// This function will attempt to interpret `s` as a TOML document and
+/// deserialize `T` from the document.
+///
+/// To deserializes TOML values, instead of documents, see [`ValueDeserializer`].
+///
+/// # Examples
+///
+/// ```
+/// use serde::Deserialize;
+///
+/// #[derive(Deserialize)]
+/// struct Config {
+///     title: String,
+///     owner: Owner,
+/// }
+///
+/// #[derive(Deserialize)]
+/// struct Owner {
+///     name: String,
+/// }
+///
+/// let config: Config = toml_edit::de::from_str(r#"
+///     title = 'TOML Example'
+///
+///     [owner]
+///     name = 'Lisa'
+/// "#).unwrap();
+///
+/// assert_eq!(config.title, "TOML Example");
+/// assert_eq!(config.owner.name, "Lisa");
+/// ```
+#[cfg(feature = "parse")]
+pub fn from_str<T>(s: &'_ str) -> Result<T, Error>
+where
+    T: DeserializeOwned,
+{
+    let de = Deserializer::parse(s)?;
+    T::deserialize(de)
+}
+
+/// Deserializes bytes into a type.
+///
+/// This function will attempt to interpret `s` as a TOML document and
+/// deserialize `T` from the document.
+///
+/// To deserializes TOML values, instead of documents, see [`ValueDeserializer`].
+#[cfg(feature = "parse")]
+pub fn from_slice<T>(s: &'_ [u8]) -> Result<T, Error>
+where
+    T: DeserializeOwned,
+{
+    let s = std::str::from_utf8(s).map_err(|e| Error::custom(e, None))?;
+    from_str(s)
+}
+
+/// Convert a [`DocumentMut`][crate::DocumentMut] into `T`.
+pub fn from_document<T>(d: impl Into<Deserializer>) -> Result<T, Error>
+where
+    T: DeserializeOwned,
+{
+    let deserializer = d.into();
+    T::deserialize(deserializer)
+}
+
+/// Deserialization for TOML [documents][crate::DocumentMut].
+pub struct Deserializer<S = String> {
+    root: crate::Item,
+    raw: Option<S>,
+}
+
+#[cfg(feature = "parse")]
+impl<S: AsRef<str>> Deserializer<S> {
+    /// Parse a TOML document
+    pub fn parse(raw: S) -> Result<Self, Error> {
+        crate::Document::parse(raw)
+            .map(Self::from)
+            .map_err(Into::into)
+    }
+}
+
+impl From<crate::DocumentMut> for Deserializer {
+    fn from(doc: crate::DocumentMut) -> Self {
+        let crate::DocumentMut { root, .. } = doc;
+        Self { root, raw: None }
+    }
+}
+
+impl<S> From<crate::Document<S>> for Deserializer<S> {
+    fn from(doc: crate::Document<S>) -> Self {
+        let crate::Document { root, raw, .. } = doc;
+        let raw = Some(raw);
+        Self { root, raw }
+    }
+}
+
+#[cfg(feature = "parse")]
+impl std::str::FromStr for Deserializer {
+    type Err = Error;
+
+    /// Parses a document from a &str
+    fn from_str(s: &str) -> Result<Self, Self::Err> {
+        let doc: crate::Document<_> = s.parse().map_err(Error::from)?;
+        Ok(Self::from(doc))
+    }
+}
+
+impl<'de, S: AsRef<str>> serde_core::Deserializer<'de> for Deserializer<S> {
+    type Error = Error;
+
+    fn deserialize_any<V>(self, visitor: V) -> Result<V::Value, Self::Error>
+    where
+        V: serde_core::de::Visitor<'de>,
+    {
+        let raw = self.raw;
+        ValueDeserializer::new(self.root)
+            .deserialize_any(visitor)
+            .map_err(|mut e: Self::Error| {
+                let raw = raw.as_ref().map(|r| r.as_ref());
+                e.set_input(raw);
+                e
+            })
+    }
+
+    // `None` is interpreted as a missing field so be sure to implement `Some`
+    // as a present field.
+    fn deserialize_option<V>(self, visitor: V) -> Result<V::Value, Error>
+    where
+        V: serde_core::de::Visitor<'de>,
+    {
+        let raw = self.raw;
+        ValueDeserializer::new(self.root)
+            .deserialize_option(visitor)
+            .map_err(|mut e: Self::Error| {
+                let raw = raw.as_ref().map(|r| r.as_ref());
+                e.set_input(raw);
+                e
+            })
+    }
+
+    fn deserialize_newtype_struct<V>(
+        self,
+        name: &'static str,
+        visitor: V,
+    ) -> Result<V::Value, Error>
+    where
+        V: serde_core::de::Visitor<'de>,
+    {
+        let raw = self.raw;
+        ValueDeserializer::new(self.root)
+            .deserialize_newtype_struct(name, visitor)
+            .map_err(|mut e: Self::Error| {
+                let raw = raw.as_ref().map(|r| r.as_ref());
+                e.set_input(raw);
+                e
+            })
+    }
+
+    fn deserialize_struct<V>(
+        self,
+        name: &'static str,
+        fields: &'static [&'static str],
+        visitor: V,
+    ) -> Result<V::Value, Error>
+    where
+        V: serde_core::de::Visitor<'de>,
+    {
+        let raw = self.raw;
+        ValueDeserializer::new(self.root)
+            .deserialize_struct(name, fields, visitor)
+            .map_err(|mut e: Self::Error| {
+                let raw = raw.as_ref().map(|r| r.as_ref());
+                e.set_input(raw);
+                e
+            })
+    }
+
+    // Called when the type to deserialize is an enum, as opposed to a field in the type.
+    fn deserialize_enum<V>(
+        self,
+        name: &'static str,
+        variants: &'static [&'static str],
+        visitor: V,
+    ) -> Result<V::Value, Error>
+    where
+        V: serde_core::de::Visitor<'de>,
+    {
+        let raw = self.raw;
+        ValueDeserializer::new(self.root)
+            .deserialize_enum(name, variants, visitor)
+            .map_err(|mut e: Self::Error| {
+                let raw = raw.as_ref().map(|r| r.as_ref());
+                e.set_input(raw);
+                e
+            })
+    }
+
+    serde_core::forward_to_deserialize_any! {
+        bool u8 u16 u32 u64 i8 i16 i32 i64 f32 f64 char str string seq
+        bytes byte_buf map unit
+        ignored_any unit_struct tuple_struct tuple identifier
+    }
+}
+
+impl serde_core::de::IntoDeserializer<'_, Error> for Deserializer {
+    type Deserializer = Self;
+
+    fn into_deserializer(self) -> Self::Deserializer {
+        self
+    }
+}
+
+impl serde_core::de::IntoDeserializer<'_, Error> for crate::DocumentMut {
+    type Deserializer = Deserializer;
+
+    fn into_deserializer(self) -> Self::Deserializer {
+        Deserializer::from(self)
+    }
+}
+
+impl serde_core::de::IntoDeserializer<'_, Error> for crate::Document<String> {
+    type Deserializer = Deserializer;
+
+    fn into_deserializer(self) -> Self::Deserializer {
+        Deserializer::from(self)
+    }
+}

vendor/toml_edit/src/de/table.rs

@@ -0,0 +1,207 @@
+use serde_core::de::IntoDeserializer;
+
+use crate::de::Error;
+
+pub(crate) struct TableDeserializer {
+    span: Option<std::ops::Range<usize>>,
+    items: crate::table::KeyValuePairs,
+}
+
+impl TableDeserializer {
+    pub(crate) fn new(
+        items: crate::table::KeyValuePairs,
+        span: Option<std::ops::Range<usize>>,
+    ) -> Self {
+        Self { span, items }
+    }
+}
+
+impl<'de> serde_core::Deserializer<'de> for TableDeserializer {
+    type Error = Error;
+
+    fn deserialize_any<V>(self, visitor: V) -> Result<V::Value, Self::Error>
+    where
+        V: serde_core::de::Visitor<'de>,
+    {
+        visitor.visit_map(TableMapAccess::new(self))
+    }
+
+    // `None` is interpreted as a missing field so be sure to implement `Some`
+    // as a present field.
+    fn deserialize_option<V>(self, visitor: V) -> Result<V::Value, Error>
+    where
+        V: serde_core::de::Visitor<'de>,
+    {
+        visitor.visit_some(self)
+    }
+
+    fn deserialize_newtype_struct<V>(
+        self,
+        _name: &'static str,
+        visitor: V,
+    ) -> Result<V::Value, Error>
+    where
+        V: serde_core::de::Visitor<'de>,
+    {
+        visitor.visit_newtype_struct(self)
+    }
+
+    fn deserialize_struct<V>(
+        self,
+        name: &'static str,
+        _fields: &'static [&'static str],
+        visitor: V,
+    ) -> Result<V::Value, Error>
+    where
+        V: serde_core::de::Visitor<'de>,
+    {
+        if serde_spanned::de::is_spanned(name) {
+            if let Some(span) = self.span.clone() {
+                return visitor.visit_map(
+                    serde_spanned::de::SpannedDeserializer::<Self, Error>::new(self, span),
+                );
+            } else {
+                return Err(Error::custom("value is missing a span", None));
+            }
+        }
+
+        self.deserialize_any(visitor)
+    }
+
+    // Called when the type to deserialize is an enum, as opposed to a field in the type.
+    fn deserialize_enum<V>(
+        self,
+        _name: &'static str,
+        _variants: &'static [&'static str],
+        visitor: V,
+    ) -> Result<V::Value, Error>
+    where
+        V: serde_core::de::Visitor<'de>,
+    {
+        if self.items.is_empty() {
+            Err(Error::custom(
+                "wanted exactly 1 element, found 0 elements",
+                self.span,
+            ))
+        } else if self.items.len() != 1 {
+            Err(Error::custom(
+                "wanted exactly 1 element, more than 1 element",
+                self.span,
+            ))
+        } else {
+            visitor.visit_enum(TableMapAccess::new(self))
+        }
+    }
+
+    serde_core::forward_to_deserialize_any! {
+        bool u8 u16 u32 u64 i8 i16 i32 i64 f32 f64 char str string seq
+        bytes byte_buf map unit
+        ignored_any unit_struct tuple_struct tuple identifier
+    }
+}
+
+impl IntoDeserializer<'_, Error> for TableDeserializer {
+    type Deserializer = Self;
+
+    fn into_deserializer(self) -> Self::Deserializer {
+        self
+    }
+}
+
+pub(crate) struct TableMapAccess {
+    iter: indexmap::map::IntoIter<crate::Key, crate::Item>,
+    span: Option<std::ops::Range<usize>>,
+    value: Option<(crate::Key, crate::Item)>,
+}
+
+impl TableMapAccess {
+    pub(crate) fn new(input: TableDeserializer) -> Self {
+        Self {
+            iter: input.items.into_iter(),
+            span: input.span,
+            value: None,
+        }
+    }
+}
+
+impl<'de> serde_core::de::MapAccess<'de> for TableMapAccess {
+    type Error = Error;
+
+    fn next_key_seed<K>(&mut self, seed: K) -> Result<Option<K::Value>, Self::Error>
+    where
+        K: serde_core::de::DeserializeSeed<'de>,
+    {
+        match self.iter.next() {
+            Some((k, v)) => {
+                let key_span = k.span();
+                let ret = seed
+                    .deserialize(super::KeyDeserializer::new(k.clone(), key_span.clone()))
+                    .map(Some)
+                    .map_err(|mut e: Self::Error| {
+                        if e.span().is_none() {
+                            e.set_span(key_span);
+                        }
+                        e
+                    });
+                self.value = Some((k, v));
+                ret
+            }
+            None => Ok(None),
+        }
+    }
+
+    fn next_value_seed<V>(&mut self, seed: V) -> Result<V::Value, Self::Error>
+    where
+        V: serde_core::de::DeserializeSeed<'de>,
+    {
+        match self.value.take() {
+            Some((k, v)) => {
+                let span = v.span().or_else(|| k.span());
+                seed.deserialize(crate::de::ValueDeserializer::new(v))
+                    .map_err(|mut e: Self::Error| {
+                        if e.span().is_none() {
+                            e.set_span(span);
+                        }
+                        e.add_key(k.get().to_owned());
+                        e
+                    })
+            }
+            None => {
+                panic!("no more values in next_value_seed, internal error in ValueDeserializer")
+            }
+        }
+    }
+}
+
+impl<'de> serde_core::de::EnumAccess<'de> for TableMapAccess {
+    type Error = Error;
+    type Variant = super::TableEnumDeserializer;
+
+    fn variant_seed<V>(mut self, seed: V) -> Result<(V::Value, Self::Variant), Self::Error>
+    where
+        V: serde_core::de::DeserializeSeed<'de>,
+    {
+        let (key, value) = match self.iter.next() {
+            Some(pair) => pair,
+            None => {
+                return Err(Error::custom(
+                    "expected table with exactly 1 entry, found empty table",
+                    self.span,
+                ));
+            }
+        };
+
+        let val = seed
+            .deserialize(key.into_deserializer())
+            .map_err(|mut e: Self::Error| {
+                if e.span().is_none() {
+                    e.set_span(key.span());
+                }
+                e
+            })?;
+
+        let variant = super::TableEnumDeserializer::new(value);
+
+        Ok((val, variant))
+    }
+}

vendor/toml_edit/src/de/table_enum.rs

@@ -0,0 +1,176 @@
+use crate::de::Error;
+
+/// Deserializes table values into enum variants.
+pub(crate) struct TableEnumDeserializer {
+    value: crate::Item,
+}
+
+impl TableEnumDeserializer {
+    pub(crate) fn new(value: crate::Item) -> Self {
+        Self { value }
+    }
+}
+
+impl<'de> serde_core::de::VariantAccess<'de> for TableEnumDeserializer {
+    type Error = Error;
+
+    fn unit_variant(self) -> Result<(), Self::Error> {
+        match self.value {
+            crate::Item::ArrayOfTables(values) => {
+                if values.is_empty() {
+                    Ok(())
+                } else {
+                    Err(Error::custom("expected empty array", values.span()))
+                }
+            }
+            crate::Item::Value(crate::Value::Array(values)) => {
+                if values.is_empty() {
+                    Ok(())
+                } else {
+                    Err(Error::custom("expected empty table", values.span()))
+                }
+            }
+            crate::Item::Table(values) => {
+                if values.is_empty() {
+                    Ok(())
+                } else {
+                    Err(Error::custom("expected empty table", values.span()))
+                }
+            }
+            crate::Item::Value(crate::Value::InlineTable(values)) => {
+                if values.is_empty() {
+                    Ok(())
+                } else {
+                    Err(Error::custom("expected empty table", values.span()))
+                }
+            }
+            e => Err(Error::custom(
+                format!("expected table, found {}", e.type_name()),
+                e.span(),
+            )),
+        }
+    }
+
+    fn newtype_variant_seed<T>(self, seed: T) -> Result<T::Value, Self::Error>
+    where
+        T: serde_core::de::DeserializeSeed<'de>,
+    {
+        seed.deserialize(super::ValueDeserializer::new(self.value))
+    }
+
+    fn tuple_variant<V>(self, len: usize, visitor: V) -> Result<V::Value, Self::Error>
+    where
+        V: serde_core::de::Visitor<'de>,
+    {
+        match self.value {
+            crate::Item::ArrayOfTables(values) => {
+                let values_span = values.span();
+                let tuple_values = values.values.into_iter().collect::<Vec<_>>();
+
+                if tuple_values.len() == len {
+                    serde_core::de::Deserializer::deserialize_seq(
+                        super::ArrayDeserializer::new(tuple_values, values_span),
+                        visitor,
+                    )
+                } else {
+                    Err(Error::custom(
+                        format!("expected tuple with length {len}"),
+                        values_span,
+                    ))
+                }
+            }
+            crate::Item::Value(crate::Value::Array(values)) => {
+                let values_span = values.span();
+                let tuple_values = values.values.into_iter().collect::<Vec<_>>();
+
+                if tuple_values.len() == len {
+                    serde_core::de::Deserializer::deserialize_seq(
+                        super::ArrayDeserializer::new(tuple_values, values_span),
+                        visitor,
+                    )
+                } else {
+                    Err(Error::custom(
+                        format!("expected tuple with length {len}"),
+                        values_span,
+                    ))
+                }
+            }
+            crate::Item::Table(values) => {
+                let values_span = values.span();
+                let tuple_values: Result<Vec<_>, _> = values
+                    .items
+                    .into_iter()
+                    .enumerate()
+                    .map(|(index, (key, value))| match key.get().parse::<usize>() {
+                        Ok(key_index) if key_index == index => Ok(value),
+                        Ok(_) | Err(_) => Err(Error::custom(
+                            format!("expected table key `{}`, but was `{}`", index, key.get()),
+                            key.span(),
+                        )),
+                    })
+                    .collect();
+                let tuple_values = tuple_values?;
+
+                if tuple_values.len() == len {
+                    serde_core::de::Deserializer::deserialize_seq(
+                        super::ArrayDeserializer::new(tuple_values, values_span),
+                        visitor,
+                    )
+                } else {
+                    Err(Error::custom(
+                        format!("expected tuple with length {len}"),
+                        values_span,
+                    ))
+                }
+            }
+            crate::Item::Value(crate::Value::InlineTable(values)) => {
+                let values_span = values.span();
+                let tuple_values: Result<Vec<_>, _> = values
+                    .items
+                    .into_iter()
+                    .enumerate()
+                    .map(|(index, (key, value))| match key.get().parse::<usize>() {
+                        Ok(key_index) if key_index == index => Ok(value),
+                        Ok(_) | Err(_) => Err(Error::custom(
+                            format!("expected table key `{}`, but was `{}`", index, key.get()),
+                            key.span(),
+                        )),
+                    })
+                    .collect();
+                let tuple_values = tuple_values?;
+
+                if tuple_values.len() == len {
+                    serde_core::de::Deserializer::deserialize_seq(
+                        super::ArrayDeserializer::new(tuple_values, values_span),
+                        visitor,
+                    )
+                } else {
+                    Err(Error::custom(
+                        format!("expected tuple with length {len}"),
+                        values_span,
+                    ))
+                }
+            }
+            e => Err(Error::custom(
+                format!("expected table, found {}", e.type_name()),
+                e.span(),
+            )),
+        }
+    }
+
+    fn struct_variant<V>(
+        self,
+        fields: &'static [&'static str],
+        visitor: V,
+    ) -> Result<V::Value, Self::Error>
+    where
+        V: serde_core::de::Visitor<'de>,
+    {
+        serde_core::de::Deserializer::deserialize_struct(
+            super::ValueDeserializer::new(self.value).with_struct_key_validation(),
+            "", // TODO: this should be the variant name
+            fields,
+            visitor,
+        )
+    }
+}

vendor/toml_edit/src/de/value.rs

@@ -0,0 +1,293 @@
+use serde_core::de::IntoDeserializer as _;
+
+use crate::de::ArrayDeserializer;
+use crate::de::DatetimeDeserializer;
+use crate::de::Error;
+use crate::de::TableDeserializer;
+
+/// Deserialization implementation for TOML [values][crate::Value].
+///
+/// Can be created either directly from TOML strings, using [`std::str::FromStr`],
+/// or from parsed [values][crate::Value] using
+/// [`IntoDeserializer::into_deserializer`][serde_core::de::IntoDeserializer::into_deserializer].
+///
+/// # Example
+///
+/// ```
+/// # #[cfg(feature = "parse")] {
+/// # #[cfg(feature = "display")] {
+/// use serde::Deserialize;
+///
+/// #[derive(Deserialize)]
+/// struct Config {
+///     title: String,
+///     owner: Owner,
+/// }
+///
+/// #[derive(Deserialize)]
+/// struct Owner {
+///     name: String,
+/// }
+///
+/// let value = r#"{ title = 'TOML Example', owner = { name = 'Lisa' } }"#;
+/// let deserializer = value.parse::<toml_edit::de::ValueDeserializer>().unwrap();
+/// let config = Config::deserialize(deserializer).unwrap();
+/// assert_eq!(config.title, "TOML Example");
+/// assert_eq!(config.owner.name, "Lisa");
+/// # }
+/// # }
+/// ```
+pub struct ValueDeserializer {
+    input: crate::Item,
+    validate_struct_keys: bool,
+}
+
+impl ValueDeserializer {
+    pub(crate) fn new(input: crate::Item) -> Self {
+        Self {
+            input,
+            validate_struct_keys: false,
+        }
+    }
+
+    pub(crate) fn with_struct_key_validation(mut self) -> Self {
+        self.validate_struct_keys = true;
+        self
+    }
+}
+
+impl<'de> serde_core::Deserializer<'de> for ValueDeserializer {
+    type Error = Error;
+
+    fn deserialize_any<V>(self, visitor: V) -> Result<V::Value, Self::Error>
+    where
+        V: serde_core::de::Visitor<'de>,
+    {
+        let span = self.input.span();
+        match self.input {
+            crate::Item::None => visitor.visit_none(),
+            crate::Item::Value(crate::Value::String(v)) => visitor.visit_string(v.into_value()),
+            crate::Item::Value(crate::Value::Integer(v)) => visitor.visit_i64(v.into_value()),
+            crate::Item::Value(crate::Value::Float(v)) => visitor.visit_f64(v.into_value()),
+            crate::Item::Value(crate::Value::Boolean(v)) => visitor.visit_bool(v.into_value()),
+            crate::Item::Value(crate::Value::Datetime(v)) => {
+                visitor.visit_map(DatetimeDeserializer::new(v.into_value()))
+            }
+            crate::Item::Value(crate::Value::Array(v)) => {
+                ArrayDeserializer::new(v.values, v.span).deserialize_any(visitor)
+            }
+            crate::Item::Value(crate::Value::InlineTable(v)) => {
+                TableDeserializer::new(v.items, v.span).deserialize_any(visitor)
+            }
+            crate::Item::Table(v) => {
+                TableDeserializer::new(v.items, v.span).deserialize_any(visitor)
+            }
+            crate::Item::ArrayOfTables(v) => {
+                ArrayDeserializer::new(v.values, v.span).deserialize_any(visitor)
+            }
+        }
+        .map_err(|mut e: Self::Error| {
+            if e.span().is_none() {
+                e.set_span(span);
+            }
+            e
+        })
+    }
+
+    // `None` is interpreted as a missing field so be sure to implement `Some`
+    // as a present field.
+    fn deserialize_option<V>(self, visitor: V) -> Result<V::Value, Error>
+    where
+        V: serde_core::de::Visitor<'de>,
+    {
+        let span = self.input.span();
+        visitor.visit_some(self).map_err(|mut e: Self::Error| {
+            if e.span().is_none() {
+                e.set_span(span);
+            }
+            e
+        })
+    }
+
+    fn deserialize_newtype_struct<V>(
+        self,
+        _name: &'static str,
+        visitor: V,
+    ) -> Result<V::Value, Error>
+    where
+        V: serde_core::de::Visitor<'de>,
+    {
+        let span = self.input.span();
+        visitor
+            .visit_newtype_struct(self)
+            .map_err(|mut e: Self::Error| {
+                if e.span().is_none() {
+                    e.set_span(span);
+                }
+                e
+            })
+    }
+
+    fn deserialize_struct<V>(
+        self,
+        name: &'static str,
+        fields: &'static [&'static str],
+        visitor: V,
+    ) -> Result<V::Value, Error>
+    where
+        V: serde_core::de::Visitor<'de>,
+    {
+        if serde_spanned::de::is_spanned(name) {
+            if let Some(span) = self.input.span() {
+                return visitor.visit_map(
+                    serde_spanned::de::SpannedDeserializer::<Self, Error>::new(self, span),
+                );
+            } else {
+                return Err(Error::custom("value is missing a span", None));
+            }
+        }
+
+        if toml_datetime::de::is_datetime(name) {
+            let span = self.input.span();
+            if let crate::Item::Value(crate::Value::Datetime(d)) = self.input {
+                return visitor
+                    .visit_map(DatetimeDeserializer::new(d.into_value()))
+                    .map_err(|mut e: Self::Error| {
+                        if e.span().is_none() {
+                            e.set_span(span);
+                        }
+                        e
+                    });
+            }
+        }
+
+        if self.validate_struct_keys {
+            let span = self.input.span();
+            match &self.input {
+                crate::Item::Table(values) => validate_struct_keys(&values.items, fields),
+                crate::Item::Value(crate::Value::InlineTable(values)) => {
+                    validate_struct_keys(&values.items, fields)
+                }
+                _ => Ok(()),
+            }
+            .map_err(|mut e: Self::Error| {
+                if e.span().is_none() {
+                    e.set_span(span);
+                }
+                e
+            })?;
+        }
+
+        self.deserialize_any(visitor)
+    }
+
+    // Called when the type to deserialize is an enum, as opposed to a field in the type.
+    fn deserialize_enum<V>(
+        self,
+        name: &'static str,
+        variants: &'static [&'static str],
+        visitor: V,
+    ) -> Result<V::Value, Error>
+    where
+        V: serde_core::de::Visitor<'de>,
+    {
+        let span = self.input.span();
+        match self.input {
+            crate::Item::Value(crate::Value::String(v)) => {
+                visitor.visit_enum(v.into_value().into_deserializer())
+            }
+            crate::Item::Value(crate::Value::InlineTable(v)) => {
+                if v.is_empty() {
+                    Err(Error::custom(
+                        "wanted exactly 1 element, found 0 elements",
+                        v.span(),
+                    ))
+                } else if v.len() != 1 {
+                    Err(Error::custom(
+                        "wanted exactly 1 element, more than 1 element",
+                        v.span(),
+                    ))
+                } else {
+                    TableDeserializer::new(v.items, v.span)
+                        .deserialize_enum(name, variants, visitor)
+                }
+            }
+            crate::Item::Table(v) => {
+                TableDeserializer::new(v.items, v.span).deserialize_enum(name, variants, visitor)
+            }
+            e => Err(Error::custom("wanted string or table", e.span())),
+        }
+        .map_err(|mut e: Self::Error| {
+            if e.span().is_none() {
+                e.set_span(span);
+            }
+            e
+        })
+    }
+
+    serde_core::forward_to_deserialize_any! {
+        bool u8 u16 u32 u64 i8 i16 i32 i64 f32 f64 char str string seq
+        bytes byte_buf map unit
+        ignored_any unit_struct tuple_struct tuple identifier
+    }
+}
+
+impl serde_core::de::IntoDeserializer<'_, Error> for ValueDeserializer {
+    type Deserializer = Self;
+
+    fn into_deserializer(self) -> Self::Deserializer {
+        self
+    }
+}
+
+impl serde_core::de::IntoDeserializer<'_, Error> for crate::Value {
+    type Deserializer = ValueDeserializer;
+
+    fn into_deserializer(self) -> Self::Deserializer {
+        ValueDeserializer::new(crate::Item::Value(self))
+    }
+}
+
+#[cfg(feature = "parse")]
+impl std::str::FromStr for ValueDeserializer {
+    type Err = Error;
+
+    /// Parses a value from a &str
+    fn from_str(s: &str) -> Result<Self, Self::Err> {
+        let value = s.parse::<crate::Value>().map_err(Error::from)?;
+        Ok(value.into_deserializer())
+    }
+}
+
+pub(crate) fn validate_struct_keys(
+    table: &crate::table::KeyValuePairs,
+    fields: &'static [&'static str],
+) -> Result<(), Error> {
+    let extra_fields = table
+        .keys()
+        .filter_map(|key| {
+            if !fields.contains(&key.get()) {
+                Some(key.clone())
+            } else {
+                None
+            }
+        })
+        .collect::<Vec<_>>();
+
+    if extra_fields.is_empty() {
+        Ok(())
+    } else {
+        Err(Error::custom(
+            format!(
+                "unexpected keys in table: {}, available keys: {}",
+                extra_fields
+                    .iter()
+                    .map(|k| k.get())
+                    .collect::<Vec<_>>()
+                    .join(", "),
+                fields.join(", "),
+            ),
+            extra_fields[0].span(),
+        ))
+    }
+}

vendor/toml_edit/src/document.rs

@@ -0,0 +1,246 @@
+use std::str::FromStr;
+
+use crate::table::Iter;
+use crate::{Item, RawString, Table};
+
+/// The root TOML [`Table`], containing [`Key`][crate::Key]/[`Value`][crate::Value] pairs and all other logic [`Table`]s
+#[derive(Debug, Clone)]
+pub struct Document<S> {
+    pub(crate) root: Item,
+    // Trailing comments and whitespaces
+    pub(crate) trailing: RawString,
+    pub(crate) raw: S,
+}
+
+impl Document<&'static str> {
+    /// Creates an empty document
+    pub fn new() -> Self {
+        Default::default()
+    }
+}
+
+#[cfg(feature = "parse")]
+impl<S: AsRef<str>> Document<S> {
+    /// Parse a TOML document
+    pub fn parse(raw: S) -> Result<Self, crate::TomlError> {
+        let source = toml_parser::Source::new(raw.as_ref());
+        let mut sink = crate::error::TomlSink::<Option<_>>::new(source);
+        let doc = crate::parser::parse_document(source, &mut sink);
+        if let Some(err) = sink.into_inner() {
+            Err(err)
+        } else {
+            Ok(Self {
+                root: doc.root,
+                trailing: doc.trailing,
+                raw,
+            })
+        }
+    }
+}
+
+impl<S: AsRef<str>> Document<S> {
+    /// # Panics
+    ///
+    /// If run on a [`DocumentMut`] not generated by the parser
+    pub(crate) fn despan(&mut self) {
+        self.root.despan(self.raw.as_ref());
+        self.trailing.despan(self.raw.as_ref());
+    }
+}
+
+impl<S> Document<S> {
+    /// Returns a reference to the root item.
+    pub fn as_item(&self) -> &Item {
+        &self.root
+    }
+
+    /// Returns the root item.
+    pub fn into_item(self) -> Item {
+        self.root
+    }
+
+    /// Returns a reference to the root table.
+    pub fn as_table(&self) -> &Table {
+        self.root.as_table().expect("root should always be a table")
+    }
+
+    /// Returns the root table.
+    pub fn into_table(self) -> Table {
+        self.root
+            .into_table()
+            .expect("root should always be a table")
+    }
+
+    /// Returns an iterator over the root table.
+    pub fn iter(&self) -> Iter<'_> {
+        self.as_table().iter()
+    }
+
+    /// Whitespace after last element
+    pub fn trailing(&self) -> &RawString {
+        &self.trailing
+    }
+}
+
+impl<S: AsRef<str>> Document<S> {
+    /// Access the raw, unparsed document
+    pub fn raw(&self) -> &str {
+        self.raw.as_ref()
+    }
+}
+
+impl<S: AsRef<str>> Document<S> {
+    /// Allow editing of the [`DocumentMut`]
+    pub fn into_mut(mut self) -> DocumentMut {
+        self.despan();
+        DocumentMut {
+            root: self.root,
+            trailing: self.trailing,
+        }
+    }
+}
+
+impl Default for Document<&'static str> {
+    fn default() -> Self {
+        Self {
+            root: Item::Table(Table::with_pos(Some(0))),
+            trailing: Default::default(),
+            raw: "",
+        }
+    }
+}
+
+#[cfg(feature = "parse")]
+impl FromStr for Document<String> {
+    type Err = crate::TomlError;
+
+    /// Parses a document from a &str
+    fn from_str(s: &str) -> Result<Self, Self::Err> {
+        Self::parse(s.to_owned())
+    }
+}
+
+impl<S> std::ops::Deref for Document<S> {
+    type Target = Table;
+
+    fn deref(&self) -> &Self::Target {
+        self.as_table()
+    }
+}
+
+/// The editable root TOML [`Table`], containing [`Key`][crate::Key]/[`Value`][crate::Value] pairs and all other logic [`Table`]s
+#[derive(Debug, Clone)]
+pub struct DocumentMut {
+    pub(crate) root: Item,
+    // Trailing comments and whitespaces
+    pub(crate) trailing: RawString,
+}
+
+impl DocumentMut {
+    /// Creates an empty document
+    pub fn new() -> Self {
+        Default::default()
+    }
+
+    /// Returns a reference to the root item.
+    pub fn as_item(&self) -> &Item {
+        &self.root
+    }
+
+    /// Returns a mutable reference to the root item.
+    pub fn as_item_mut(&mut self) -> &mut Item {
+        &mut self.root
+    }
+
+    /// Returns the root item.
+    pub fn into_item(self) -> Item {
+        self.root
+    }
+
+    /// Returns a reference to the root table.
+    pub fn as_table(&self) -> &Table {
+        self.root.as_table().expect("root should always be a table")
+    }
+
+    /// Returns a mutable reference to the root table.
+    pub fn as_table_mut(&mut self) -> &mut Table {
+        self.root
+            .as_table_mut()
+            .expect("root should always be a table")
+    }
+
+    /// Returns the root table.
+    pub fn into_table(self) -> Table {
+        self.root
+            .into_table()
+            .expect("root should always be a table")
+    }
+
+    /// Returns an iterator over the root table.
+    pub fn iter(&self) -> Iter<'_> {
+        self.as_table().iter()
+    }
+
+    /// Set whitespace after last element
+    pub fn set_trailing(&mut self, trailing: impl Into<RawString>) {
+        self.trailing = trailing.into();
+    }
+
+    /// Whitespace after last element
+    pub fn trailing(&self) -> &RawString {
+        &self.trailing
+    }
+}
+
+impl Default for DocumentMut {
+    fn default() -> Self {
+        Self {
+            root: Item::Table(Table::with_pos(Some(0))),
+            trailing: Default::default(),
+        }
+    }
+}
+
+#[cfg(feature = "parse")]
+impl FromStr for DocumentMut {
+    type Err = crate::TomlError;
+
+    /// Parses a document from a &str
+    fn from_str(s: &str) -> Result<Self, Self::Err> {
+        let im = Document::from_str(s)?;
+        Ok(im.into_mut())
+    }
+}
+
+impl std::ops::Deref for DocumentMut {
+    type Target = Table;
+
+    fn deref(&self) -> &Self::Target {
+        self.as_table()
+    }
+}
+
+impl std::ops::DerefMut for DocumentMut {
+    fn deref_mut(&mut self) -> &mut Self::Target {
+        self.as_table_mut()
+    }
+}
+
+impl From<Table> for DocumentMut {
+    fn from(root: Table) -> Self {
+        Self {
+            root: Item::Table(root),
+            ..Default::default()
+        }
+    }
+}
+
+#[test]
+#[cfg(feature = "parse")]
+#[cfg(feature = "display")]
+fn default_roundtrip() {
+    DocumentMut::default()
+        .to_string()
+        .parse::<DocumentMut>()
+        .unwrap();
+}

vendor/toml_edit/src/encode.rs

@@ -0,0 +1,450 @@
+use std::borrow::Cow;
+use std::fmt::{Display, Formatter, Result, Write};
+
+use toml_datetime::Datetime;
+use toml_writer::ToTomlValue as _;
+use toml_writer::TomlWrite as _;
+
+use crate::DocumentMut;
+use crate::inline_table::DEFAULT_INLINE_KEY_DECOR;
+use crate::key::Key;
+use crate::repr::{Decor, Formatted, Repr, ValueRepr};
+use crate::table::{
+    DEFAULT_KEY_DECOR, DEFAULT_KEY_PATH_DECOR, DEFAULT_ROOT_DECOR, DEFAULT_TABLE_DECOR,
+};
+use crate::value::{
+    DEFAULT_LEADING_VALUE_DECOR, DEFAULT_TRAILING_VALUE_DECOR, DEFAULT_VALUE_DECOR,
+};
+use crate::{Array, InlineTable, Item, Table, Value};
+
+pub(crate) fn encode_key(this: &Key, buf: &mut dyn Write, input: Option<&str>) -> Result {
+    if let Some(input) = input {
+        let repr = this
+            .as_repr()
+            .map(Cow::Borrowed)
+            .unwrap_or_else(|| Cow::Owned(this.default_repr()));
+        repr.encode(buf, input)?;
+    } else {
+        let repr = this.display_repr();
+        write!(buf, "{repr}")?;
+    };
+
+    Ok(())
+}
+
+fn encode_key_path(
+    this: &[Key],
+    mut buf: &mut dyn Write,
+    input: Option<&str>,
+    default_decor: (&str, &str),
+    leaf_decor: &Decor,
+) -> Result {
+    for (i, key) in this.iter().enumerate() {
+        let dotted_decor = key.dotted_decor();
+
+        let first = i == 0;
+        let last = i + 1 == this.len();
+
+        if first {
+            leaf_decor.prefix_encode(buf, input, default_decor.0)?;
+        } else {
+            buf.key_sep()?;
+            dotted_decor.prefix_encode(buf, input, DEFAULT_KEY_PATH_DECOR.0)?;
+        }
+
+        encode_key(key, buf, input)?;
+
+        if last {
+            leaf_decor.suffix_encode(buf, input, default_decor.1)?;
+        } else {
+            dotted_decor.suffix_encode(buf, input, DEFAULT_KEY_PATH_DECOR.1)?;
+        }
+    }
+    Ok(())
+}
+
+pub(crate) fn encode_key_path_ref(
+    this: &[&Key],
+    mut buf: &mut dyn Write,
+    input: Option<&str>,
+    default_decor: (&str, &str),
+) -> Result {
+    let leaf_decor = this.last().expect("always at least one key").leaf_decor();
+    for (i, key) in this.iter().enumerate() {
+        let dotted_decor = key.dotted_decor();
+
+        let first = i == 0;
+        let last = i + 1 == this.len();
+
+        if first {
+            leaf_decor.prefix_encode(buf, input, default_decor.0)?;
+        } else {
+            buf.key_sep()?;
+            dotted_decor.prefix_encode(buf, input, DEFAULT_KEY_PATH_DECOR.0)?;
+        }
+
+        encode_key(key, buf, input)?;
+
+        if last {
+            leaf_decor.suffix_encode(buf, input, default_decor.1)?;
+        } else {
+            dotted_decor.suffix_encode(buf, input, DEFAULT_KEY_PATH_DECOR.1)?;
+        }
+    }
+    Ok(())
+}
+
+pub(crate) fn encode_formatted<T: ValueRepr>(
+    this: &Formatted<T>,
+    buf: &mut dyn Write,
+    input: Option<&str>,
+    default_decor: (&str, &str),
+) -> Result {
+    let decor = this.decor();
+    decor.prefix_encode(buf, input, default_decor.0)?;
+
+    if let Some(input) = input {
+        let repr = this
+            .as_repr()
+            .map(Cow::Borrowed)
+            .unwrap_or_else(|| Cow::Owned(this.default_repr()));
+        repr.encode(buf, input)?;
+    } else {
+        let repr = this.display_repr();
+        write!(buf, "{repr}")?;
+    };
+
+    decor.suffix_encode(buf, input, default_decor.1)?;
+    Ok(())
+}
+
+pub(crate) fn encode_array(
+    this: &Array,
+    mut buf: &mut dyn Write,
+    input: Option<&str>,
+    default_decor: (&str, &str),
+) -> Result {
+    let decor = this.decor();
+    decor.prefix_encode(buf, input, default_decor.0)?;
+    buf.open_array()?;
+
+    for (i, elem) in this.iter().enumerate() {
+        let inner_decor;
+        if i == 0 {
+            inner_decor = DEFAULT_LEADING_VALUE_DECOR;
+        } else {
+            inner_decor = DEFAULT_VALUE_DECOR;
+            buf.val_sep()?;
+        }
+        encode_value(elem, buf, input, inner_decor)?;
+    }
+    if this.trailing_comma() && !this.is_empty() {
+        buf.val_sep()?;
+    }
+
+    this.trailing().encode_with_default(buf, input, "")?;
+    buf.close_array()?;
+    decor.suffix_encode(buf, input, default_decor.1)?;
+
+    Ok(())
+}
+
+pub(crate) fn encode_table(
+    this: &InlineTable,
+    mut buf: &mut dyn Write,
+    input: Option<&str>,
+    default_decor: (&str, &str),
+) -> Result {
+    let decor = this.decor();
+    decor.prefix_encode(buf, input, default_decor.0)?;
+    buf.open_inline_table()?;
+
+    let children = this.get_values();
+    let len = children.len();
+    for (i, (key_path, value)) in children.into_iter().enumerate() {
+        if i != 0 {
+            buf.val_sep()?;
+        }
+        let inner_decor = if i == len - 1 {
+            DEFAULT_TRAILING_VALUE_DECOR
+        } else {
+            DEFAULT_VALUE_DECOR
+        };
+        encode_key_path_ref(&key_path, buf, input, DEFAULT_INLINE_KEY_DECOR)?;
+        buf.keyval_sep()?;
+        encode_value(value, buf, input, inner_decor)?;
+    }
+    if this.trailing_comma() && !this.is_empty() {
+        buf.val_sep()?;
+    }
+
+    this.trailing().encode_with_default(buf, input, "")?;
+    buf.close_inline_table()?;
+    decor.suffix_encode(buf, input, default_decor.1)?;
+
+    Ok(())
+}
+
+pub(crate) fn encode_value(
+    this: &Value,
+    buf: &mut dyn Write,
+    input: Option<&str>,
+    default_decor: (&str, &str),
+) -> Result {
+    match this {
+        Value::String(repr) => encode_formatted(repr, buf, input, default_decor),
+        Value::Integer(repr) => encode_formatted(repr, buf, input, default_decor),
+        Value::Float(repr) => encode_formatted(repr, buf, input, default_decor),
+        Value::Boolean(repr) => encode_formatted(repr, buf, input, default_decor),
+        Value::Datetime(repr) => encode_formatted(repr, buf, input, default_decor),
+        Value::Array(array) => encode_array(array, buf, input, default_decor),
+        Value::InlineTable(table) => encode_table(table, buf, input, default_decor),
+    }
+}
+
+impl Display for DocumentMut {
+    fn fmt(&self, f: &mut Formatter<'_>) -> Result {
+        let decor = self.decor();
+        decor.prefix_encode(f, None, DEFAULT_ROOT_DECOR.0)?;
+
+        let mut path = Vec::new();
+        let mut last_position = 0;
+        let mut tables = Vec::new();
+        visit_nested_tables(self.as_table(), &mut path, false, &mut |t, p, is_array| {
+            if let Some(pos) = t.position() {
+                last_position = pos;
+            }
+            tables.push((last_position, t, p.clone(), is_array));
+            Ok(())
+        })
+        .unwrap();
+
+        tables.sort_by_key(|&(id, _, _, _)| id);
+        let mut first_table = true;
+        for (_, table, path, is_array) in tables {
+            visit_table(f, None, table, &path, is_array, &mut first_table)?;
+        }
+        decor.suffix_encode(f, None, DEFAULT_ROOT_DECOR.1)?;
+        self.trailing().encode_with_default(f, None, "")
+    }
+}
+
+fn visit_nested_tables<'t, F>(
+    table: &'t Table,
+    path: &mut Vec<Key>,
+    is_array_of_tables: bool,
+    callback: &mut F,
+) -> Result
+where
+    F: FnMut(&'t Table, &Vec<Key>, bool) -> Result,
+{
+    if !table.is_dotted() {
+        callback(table, path, is_array_of_tables)?;
+    }
+
+    for (key, value) in table.items.iter() {
+        match value {
+            Item::Table(t) => {
+                let key = key.clone();
+                path.push(key);
+                visit_nested_tables(t, path, false, callback)?;
+                path.pop();
+            }
+            Item::ArrayOfTables(a) => {
+                for t in a.iter() {
+                    let key = key.clone();
+                    path.push(key);
+                    visit_nested_tables(t, path, true, callback)?;
+                    path.pop();
+                }
+            }
+            _ => {}
+        }
+    }
+    Ok(())
+}
+
+/// Split the leaf decor for a table header into the part before `[` and the part inside it.
+///
+/// The TOML spec only allows spaces and tabs (ws) between brackets and keys, so any prefix
+/// containing newlines must be placed before `[`.
+///
+/// Returns `(before_bracket, inside_header)`:
+/// - `before_bracket`: `Some(&Decor)` whose prefix should be written before the opening bracket,
+///   when the leaf decor prefix contains newlines.
+/// - `inside_header`: `&Decor` to use around the key path inside the brackets.
+fn leaf_decor_before_bracket<'a>(
+    path: &'a [Key],
+    input: Option<&str>,
+) -> (Option<&'a Decor>, &'a Decor) {
+    let Some(last_key) = path.last() else {
+        return (None, &Decor::EMPTY);
+    };
+    let leaf_decor = last_key.leaf_decor();
+    let needs_extraction = leaf_decor.prefix().is_some_and(|prefix| {
+        prefix
+            .to_str_with_default(input, DEFAULT_KEY_PATH_DECOR.0)
+            .contains('\n')
+    });
+    if needs_extraction {
+        (Some(leaf_decor), &Decor::EMPTY)
+    } else {
+        (None, leaf_decor)
+    }
+}
+
+fn visit_table(
+    mut buf: &mut dyn Write,
+    input: Option<&str>,
+    table: &Table,
+    path: &[Key],
+    is_array_of_tables: bool,
+    first_table: &mut bool,
+) -> Result {
+    let children = table.get_values();
+    // We are intentionally hiding implicit tables without any tables nested under them (ie
+    // `table.is_empty()` which is in contrast to `table.get_values().is_empty()`).  We are
+    // trusting the user that an empty implicit table is not semantically meaningful
+    //
+    // This allows a user to delete all tables under this implicit table and the implicit table
+    // will disappear.
+    //
+    // However, this means that users need to take care in deciding what tables get marked as
+    // implicit.
+    let is_visible_std_table = !(table.implicit && children.is_empty());
+
+    if path.is_empty() {
+        // don't print header for the root node
+        if !children.is_empty() {
+            *first_table = false;
+        }
+    } else if is_array_of_tables {
+        let default_decor = if *first_table {
+            *first_table = false;
+            ("", DEFAULT_TABLE_DECOR.1)
+        } else {
+            DEFAULT_TABLE_DECOR
+        };
+        let (before_bracket, key_decor) = leaf_decor_before_bracket(path, input);
+        if let Some(decor) = before_bracket {
+            decor.prefix_encode(buf, input, DEFAULT_KEY_PATH_DECOR.0)?;
+        }
+        table.decor.prefix_encode(buf, input, default_decor.0)?;
+        buf.open_array_of_tables_header()?;
+        encode_key_path(path, buf, input, DEFAULT_KEY_PATH_DECOR, key_decor)?;
+        buf.close_array_of_tables_header()?;
+        table.decor.suffix_encode(buf, input, default_decor.1)?;
+        writeln!(buf)?;
+    } else if is_visible_std_table {
+        let default_decor = if *first_table {
+            *first_table = false;
+            ("", DEFAULT_TABLE_DECOR.1)
+        } else {
+            DEFAULT_TABLE_DECOR
+        };
+        let (before_bracket, key_decor) = leaf_decor_before_bracket(path, input);
+        if let Some(decor) = before_bracket {
+            decor.prefix_encode(buf, input, DEFAULT_KEY_PATH_DECOR.0)?;
+        }
+        table.decor.prefix_encode(buf, input, default_decor.0)?;
+        buf.open_table_header()?;
+        encode_key_path(path, buf, input, DEFAULT_KEY_PATH_DECOR, key_decor)?;
+        buf.close_table_header()?;
+        table.decor.suffix_encode(buf, input, default_decor.1)?;
+        writeln!(buf)?;
+    }
+    // print table body
+    for (key_path, value) in children {
+        encode_key_path_ref(&key_path, buf, input, DEFAULT_KEY_DECOR)?;
+        buf.keyval_sep()?;
+        encode_value(value, buf, input, DEFAULT_VALUE_DECOR)?;
+        writeln!(buf)?;
+    }
+    Ok(())
+}
+
+impl ValueRepr for String {
+    fn to_repr(&self) -> Repr {
+        let output = toml_writer::TomlStringBuilder::new(self.as_str())
+            .as_default()
+            .to_toml_value();
+        Repr::new_unchecked(output)
+    }
+}
+
+impl ValueRepr for i64 {
+    fn to_repr(&self) -> Repr {
+        let repr = self.to_toml_value();
+        Repr::new_unchecked(repr)
+    }
+}
+
+impl ValueRepr for f64 {
+    fn to_repr(&self) -> Repr {
+        let repr = self.to_toml_value();
+        Repr::new_unchecked(repr)
+    }
+}
+
+impl ValueRepr for bool {
+    fn to_repr(&self) -> Repr {
+        let repr = self.to_toml_value();
+        Repr::new_unchecked(repr)
+    }
+}
+
+impl ValueRepr for Datetime {
+    fn to_repr(&self) -> Repr {
+        Repr::new_unchecked(self.to_string())
+    }
+}
+
+#[cfg(test)]
+mod test {
+    use super::*;
+    use proptest::prelude::*;
+
+    proptest! {
+        #[test]
+        #[cfg(feature = "parse")]
+        fn parseable_string(string in "\\PC*") {
+            let value = Value::from(string.clone());
+            let encoded = value.to_string();
+            let _: Value = encoded.parse().unwrap_or_else(|err| {
+                panic!("error: {err}
+
+string:
+```
+{string}
+```
+value:
+```
+{value}
+```
+")
+            });
+        }
+    }
+
+    proptest! {
+        #[test]
+        #[cfg(feature = "parse")]
+        fn parseable_key(string in "\\PC*") {
+            let key = Key::new(string.clone());
+            let encoded = key.to_string();
+            let _: Key = encoded.parse().unwrap_or_else(|err| {
+                panic!("error: {err}
+
+string:
+```
+{string}
+```
+key:
+```
+{key}
+```
+")
+            });
+        }
+    }
+}

vendor/toml_edit/src/error.rs

@@ -0,0 +1,299 @@
+/// A TOML parse error
+#[derive(Debug, Clone, Eq, PartialEq, Hash)]
+pub struct TomlError {
+    message: String,
+    input: Option<std::sync::Arc<str>>,
+    keys: Vec<String>,
+    span: Option<std::ops::Range<usize>>,
+}
+
+impl TomlError {
+    #[cfg(feature = "parse")]
+    pub(crate) fn new(input: std::sync::Arc<str>, error: toml_parser::ParseError) -> Self {
+        let mut message = String::new();
+        message.push_str(error.description());
+        if let Some(expected) = error.expected() {
+            message.push_str(", expected ");
+            if expected.is_empty() {
+                message.push_str("nothing");
+            } else {
+                for (i, expected) in expected.iter().enumerate() {
+                    if i != 0 {
+                        message.push_str(", ");
+                    }
+                    match expected {
+                        toml_parser::Expected::Literal(desc) => {
+                            message.push_str(&render_literal(desc));
+                        }
+                        toml_parser::Expected::Description(desc) => message.push_str(desc),
+                        _ => message.push_str("etc"),
+                    }
+                }
+            }
+        }
+
+        let span = error.unexpected().map(|span| span.start()..span.end());
+
+        Self {
+            message,
+            input: Some(input),
+            keys: Vec::new(),
+            span,
+        }
+    }
+
+    #[cfg(feature = "serde")]
+    pub(crate) fn custom(message: String, span: Option<std::ops::Range<usize>>) -> Self {
+        Self {
+            message,
+            input: None,
+            keys: Vec::new(),
+            span,
+        }
+    }
+
+    #[cfg(feature = "serde")]
+    pub(crate) fn add_key(&mut self, key: String) {
+        self.keys.insert(0, key);
+    }
+
+    /// What went wrong
+    pub fn message(&self) -> &str {
+        &self.message
+    }
+
+    /// The start/end index into the original document where the error occurred
+    pub fn span(&self) -> Option<std::ops::Range<usize>> {
+        self.span.clone()
+    }
+
+    #[cfg(feature = "serde")]
+    pub(crate) fn set_span(&mut self, span: Option<std::ops::Range<usize>>) {
+        self.span = span;
+    }
+
+    #[cfg(feature = "serde")]
+    pub(crate) fn set_input(&mut self, input: Option<&str>) {
+        self.input = input.map(|s| s.into());
+    }
+}
+
+fn render_literal(literal: &str) -> String {
+    match literal {
+        "\n" => "newline".to_owned(),
+        "`" => "'`'".to_owned(),
+        s if s.chars().all(|c| c.is_ascii_control()) => {
+            format!("`{}`", s.escape_debug())
+        }
+        s => format!("`{s}`"),
+    }
+}
+
+/// Displays a TOML parse error
+///
+/// # Example
+///
+/// TOML parse error at line 1, column 10
+///   |
+/// 1 | 00:32:00.a999999
+///   |          ^
+/// Unexpected `a`
+/// Expected `digit`
+/// While parsing a Time
+/// While parsing a Date-Time
+impl std::fmt::Display for TomlError {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        let mut context = false;
+        if let (Some(input), Some(span)) = (&self.input, self.span()) {
+            context = true;
+
+            let (line, column) = translate_position(input.as_bytes(), span.start);
+            let line_num = line + 1;
+            let col_num = column + 1;
+            let gutter = line_num.to_string().len();
+            let content = input.split('\n').nth(line).expect("valid line number");
+            let highlight_len = span.end - span.start;
+            // Allow highlight to go one past the line
+            let highlight_len = highlight_len.min(content.len().saturating_sub(column));
+
+            writeln!(f, "TOML parse error at line {line_num}, column {col_num}")?;
+            //   |
+            for _ in 0..=gutter {
+                write!(f, " ")?;
+            }
+            writeln!(f, "|")?;
+
+            // 1 | 00:32:00.a999999
+            write!(f, "{line_num} | ")?;
+            writeln!(f, "{content}")?;
+
+            //   |          ^
+            for _ in 0..=gutter {
+                write!(f, " ")?;
+            }
+            write!(f, "|")?;
+            for _ in 0..=column {
+                write!(f, " ")?;
+            }
+            // The span will be empty at eof, so we need to make sure we always print at least
+            // one `^`
+            write!(f, "^")?;
+            for _ in 1..highlight_len {
+                write!(f, "^")?;
+            }
+            writeln!(f)?;
+        }
+        writeln!(f, "{}", self.message)?;
+        if !context && !self.keys.is_empty() {
+            writeln!(f, "in `{}`", self.keys.join("."))?;
+        }
+
+        Ok(())
+    }
+}
+
+impl std::error::Error for TomlError {}
+
+fn translate_position(input: &[u8], index: usize) -> (usize, usize) {
+    if input.is_empty() {
+        return (0, index);
+    }
+
+    let safe_index = index.min(input.len() - 1);
+    let column_offset = index - safe_index;
+    let index = safe_index;
+
+    let nl = input[0..index]
+        .iter()
+        .rev()
+        .enumerate()
+        .find(|(_, b)| **b == b'\n')
+        .map(|(nl, _)| index - nl - 1);
+    let line_start = match nl {
+        Some(nl) => nl + 1,
+        None => 0,
+    };
+    let line = input[0..line_start].iter().filter(|b| **b == b'\n').count();
+
+    let column = std::str::from_utf8(&input[line_start..=index])
+        .map(|s| s.chars().count() - 1)
+        .unwrap_or_else(|_| index - line_start);
+    let column = column + column_offset;
+
+    (line, column)
+}
+
+#[cfg(feature = "parse")]
+pub(crate) struct TomlSink<'i, S> {
+    source: toml_parser::Source<'i>,
+    input: Option<std::sync::Arc<str>>,
+    sink: S,
+}
+
+#[cfg(feature = "parse")]
+impl<'i, S: Default> TomlSink<'i, S> {
+    pub(crate) fn new(source: toml_parser::Source<'i>) -> Self {
+        Self {
+            source,
+            input: None,
+            sink: Default::default(),
+        }
+    }
+
+    pub(crate) fn into_inner(self) -> S {
+        self.sink
+    }
+}
+
+#[cfg(feature = "parse")]
+impl<'i> toml_parser::ErrorSink for TomlSink<'i, Option<TomlError>> {
+    fn report_error(&mut self, error: toml_parser::ParseError) {
+        if self.sink.is_none() {
+            let input = self
+                .input
+                .get_or_insert_with(|| std::sync::Arc::from(self.source.input()));
+            let error = TomlError::new(input.clone(), error);
+            self.sink = Some(error);
+        }
+    }
+}
+
+#[cfg(feature = "parse")]
+impl<'i> toml_parser::ErrorSink for TomlSink<'i, Vec<TomlError>> {
+    fn report_error(&mut self, error: toml_parser::ParseError) {
+        let input = self
+            .input
+            .get_or_insert_with(|| std::sync::Arc::from(self.source.input()));
+        let error = TomlError::new(input.clone(), error);
+        self.sink.push(error);
+    }
+}
+
+#[cfg(test)]
+mod test_translate_position {
+    use super::*;
+
+    #[test]
+    fn empty() {
+        let input = b"";
+        let index = 0;
+        let position = translate_position(&input[..], index);
+        assert_eq!(position, (0, 0));
+    }
+
+    #[test]
+    fn start() {
+        let input = b"Hello";
+        let index = 0;
+        let position = translate_position(&input[..], index);
+        assert_eq!(position, (0, 0));
+    }
+
+    #[test]
+    fn end() {
+        let input = b"Hello";
+        let index = input.len() - 1;
+        let position = translate_position(&input[..], index);
+        assert_eq!(position, (0, input.len() - 1));
+    }
+
+    #[test]
+    fn after() {
+        let input = b"Hello";
+        let index = input.len();
+        let position = translate_position(&input[..], index);
+        assert_eq!(position, (0, input.len()));
+    }
+
+    #[test]
+    fn first_line() {
+        let input = b"Hello\nWorld\n";
+        let index = 2;
+        let position = translate_position(&input[..], index);
+        assert_eq!(position, (0, 2));
+    }
+
+    #[test]
+    fn end_of_line() {
+        let input = b"Hello\nWorld\n";
+        let index = 5;
+        let position = translate_position(&input[..], index);
+        assert_eq!(position, (0, 5));
+    }
+
+    #[test]
+    fn start_of_second_line() {
+        let input = b"Hello\nWorld\n";
+        let index = 6;
+        let position = translate_position(&input[..], index);
+        assert_eq!(position, (1, 0));
+    }
+
+    #[test]
+    fn second_line() {
+        let input = b"Hello\nWorld\n";
+        let index = 8;
+        let position = translate_position(&input[..], index);
+        assert_eq!(position, (1, 2));
+    }
+}

vendor/toml_edit/src/index.rs

@@ -0,0 +1,142 @@
+use std::ops;
+
+use crate::DocumentMut;
+use crate::key::Key;
+use crate::{InlineTable, Item, Table, Value, value};
+
+// copied from
+// https://github.com/serde-rs/json/blob/master/src/value/index.rs
+
+pub trait Index: crate::private::Sealed {
+    #[doc(hidden)]
+    fn index<'v>(&self, val: &'v Item) -> Option<&'v Item>;
+    #[doc(hidden)]
+    fn index_mut<'v>(&self, val: &'v mut Item) -> Option<&'v mut Item>;
+}
+
+impl Index for usize {
+    fn index<'v>(&self, v: &'v Item) -> Option<&'v Item> {
+        match *v {
+            Item::ArrayOfTables(ref aot) => aot.values.get(*self),
+            Item::Value(ref a) if a.is_array() => a.as_array().and_then(|a| a.values.get(*self)),
+            _ => None,
+        }
+    }
+    fn index_mut<'v>(&self, v: &'v mut Item) -> Option<&'v mut Item> {
+        match *v {
+            Item::ArrayOfTables(ref mut vec) => vec.values.get_mut(*self),
+            Item::Value(ref mut a) => a.as_array_mut().and_then(|a| a.values.get_mut(*self)),
+            _ => None,
+        }
+    }
+}
+
+impl Index for str {
+    fn index<'v>(&self, v: &'v Item) -> Option<&'v Item> {
+        match *v {
+            Item::Table(ref t) => t.get(self),
+            Item::Value(ref v) => v
+                .as_inline_table()
+                .and_then(|t| t.items.get(self))
+                .and_then(|value| if !value.is_none() { Some(value) } else { None }),
+            _ => None,
+        }
+    }
+    fn index_mut<'v>(&self, v: &'v mut Item) -> Option<&'v mut Item> {
+        if let Item::None = *v {
+            let mut t = InlineTable::default();
+            t.items.insert(Key::new(self), Item::None);
+            *v = value(Value::InlineTable(t));
+        }
+        match *v {
+            Item::Table(ref mut t) => Some(t.entry(self).or_insert(Item::None)),
+            Item::Value(ref mut v) => v
+                .as_inline_table_mut()
+                .map(|t| t.items.entry(Key::new(self)).or_insert_with(|| Item::None)),
+            _ => None,
+        }
+    }
+}
+
+impl Index for String {
+    fn index<'v>(&self, v: &'v Item) -> Option<&'v Item> {
+        self[..].index(v)
+    }
+    fn index_mut<'v>(&self, v: &'v mut Item) -> Option<&'v mut Item> {
+        self[..].index_mut(v)
+    }
+}
+
+impl<T: ?Sized> Index for &T
+where
+    T: Index,
+{
+    fn index<'v>(&self, v: &'v Item) -> Option<&'v Item> {
+        (**self).index(v)
+    }
+    fn index_mut<'v>(&self, v: &'v mut Item) -> Option<&'v mut Item> {
+        (**self).index_mut(v)
+    }
+}
+
+impl<I> ops::Index<I> for Item
+where
+    I: Index,
+{
+    type Output = Self;
+
+    fn index(&self, index: I) -> &Self {
+        index.index(self).expect("index not found")
+    }
+}
+
+impl<I> ops::IndexMut<I> for Item
+where
+    I: Index,
+{
+    fn index_mut(&mut self, index: I) -> &mut Self {
+        index.index_mut(self).expect("index not found")
+    }
+}
+
+impl<'s> ops::Index<&'s str> for Table {
+    type Output = Item;
+
+    fn index(&self, key: &'s str) -> &Item {
+        self.get(key).expect("index not found")
+    }
+}
+
+impl<'s> ops::IndexMut<&'s str> for Table {
+    fn index_mut(&mut self, key: &'s str) -> &mut Item {
+        self.entry(key).or_insert(Item::None)
+    }
+}
+
+impl<'s> ops::Index<&'s str> for InlineTable {
+    type Output = Value;
+
+    fn index(&self, key: &'s str) -> &Value {
+        self.get(key).expect("index not found")
+    }
+}
+
+impl<'s> ops::IndexMut<&'s str> for InlineTable {
+    fn index_mut(&mut self, key: &'s str) -> &mut Value {
+        self.get_mut(key).expect("index not found")
+    }
+}
+
+impl<'s> ops::Index<&'s str> for DocumentMut {
+    type Output = Item;
+
+    fn index(&self, key: &'s str) -> &Item {
+        self.root.index(key)
+    }
+}
+
+impl<'s> ops::IndexMut<&'s str> for DocumentMut {
+    fn index_mut(&mut self, key: &'s str) -> &mut Item {
+        self.root.index_mut(key)
+    }
+}

vendor/toml_edit/src/inline_table.rs

@@ -0,0 +1,746 @@
+use std::iter::FromIterator;
+
+use crate::key::Key;
+use crate::repr::Decor;
+use crate::table::{Iter, IterMut, KeyValuePairs, TableLike};
+use crate::{Item, KeyMut, RawString, Table, Value};
+
+/// A TOML [`Value`] that contains a collection of [`Key`]/[`Value`] pairs
+#[derive(Debug, Default, Clone)]
+pub struct InlineTable {
+    // `trailing` represents whitespaces, newlines
+    // and comments in an empty array or after the trailing comma
+    trailing: RawString,
+    trailing_comma: bool,
+    // Whether to hide an empty table
+    pub(crate) implicit: bool,
+    // prefix before `{` and suffix after `}`
+    decor: Decor,
+    pub(crate) span: Option<std::ops::Range<usize>>,
+    // whether this is a proxy for dotted keys
+    dotted: bool,
+    pub(crate) items: KeyValuePairs,
+}
+
+/// Constructors
+///
+/// See also `FromIterator`
+impl InlineTable {
+    /// Creates an empty table.
+    pub fn new() -> Self {
+        Default::default()
+    }
+
+    pub(crate) fn with_pairs(items: KeyValuePairs) -> Self {
+        Self {
+            items,
+            ..Default::default()
+        }
+    }
+
+    /// Convert to a table
+    pub fn into_table(self) -> Table {
+        let mut t = Table::with_pairs(self.items);
+        t.fmt();
+        t
+    }
+}
+
+/// Formatting
+impl InlineTable {
+    /// Get key/values for values that are visually children of this table
+    ///
+    /// For example, this will return dotted keys
+    pub fn get_values(&self) -> Vec<(Vec<&Key>, &Value)> {
+        let mut values = Vec::new();
+        let root = Vec::new();
+        self.append_values(&root, &mut values);
+        values
+    }
+
+    pub(crate) fn append_values<'s>(
+        &'s self,
+        parent: &[&'s Key],
+        values: &mut Vec<(Vec<&'s Key>, &'s Value)>,
+    ) {
+        for (key, value) in self.items.iter() {
+            let mut path = parent.to_vec();
+            path.push(key);
+            match value {
+                Item::Value(Value::InlineTable(table)) if table.is_dotted() => {
+                    table.append_values(&path, values);
+                }
+                Item::Value(value) => {
+                    values.push((path, value));
+                }
+                Item::Table(table) => {
+                    table.append_all_values(&path, values);
+                }
+                _ => {}
+            }
+        }
+    }
+
+    /// Auto formats the table.
+    pub fn fmt(&mut self) {
+        decorate_inline_table(self);
+    }
+
+    /// Set whether the array will use a trailing comma
+    pub fn set_trailing_comma(&mut self, yes: bool) {
+        self.trailing_comma = yes;
+    }
+
+    /// Whether the array will use a trailing comma
+    pub fn trailing_comma(&self) -> bool {
+        self.trailing_comma
+    }
+
+    /// Set whitespace after last element
+    pub fn set_trailing(&mut self, trailing: impl Into<RawString>) {
+        self.trailing = trailing.into();
+    }
+
+    /// Whitespace after last element
+    pub fn trailing(&self) -> &RawString {
+        &self.trailing
+    }
+
+    /// Sorts [Key]/[Value]-pairs of the table
+    ///
+    /// <div class="warning">
+    ///
+    /// This is not recursive.
+    ///
+    /// </div>
+    pub fn sort_values(&mut self) {
+        // Assuming standard tables have their position set and this won't negatively impact them
+        self.items.sort_keys();
+        for value in self.items.values_mut() {
+            match value {
+                Item::Value(Value::InlineTable(table)) if table.is_dotted() => {
+                    table.sort_values();
+                }
+                _ => {}
+            }
+        }
+    }
+
+    /// Sort [Key]/[Value]-pairs of the table using the using the comparison function `compare`
+    ///
+    /// The comparison function receives two key and value pairs to compare (you can sort by keys or
+    /// values or their combination as needed).
+    ///
+    /// <div class="warning">
+    ///
+    /// This is not recursive.
+    ///
+    /// </div>
+    pub fn sort_values_by<F>(&mut self, mut compare: F)
+    where
+        F: FnMut(&Key, &Value, &Key, &Value) -> std::cmp::Ordering,
+    {
+        self.sort_values_by_internal(&mut compare);
+    }
+
+    fn sort_values_by_internal<F>(&mut self, compare: &mut F)
+    where
+        F: FnMut(&Key, &Value, &Key, &Value) -> std::cmp::Ordering,
+    {
+        let modified_cmp =
+            |key1: &Key, val1: &Item, key2: &Key, val2: &Item| -> std::cmp::Ordering {
+                match (val1.as_value(), val2.as_value()) {
+                    (Some(v1), Some(v2)) => compare(key1, v1, key2, v2),
+                    (Some(_), None) => std::cmp::Ordering::Greater,
+                    (None, Some(_)) => std::cmp::Ordering::Less,
+                    (None, None) => std::cmp::Ordering::Equal,
+                }
+            };
+
+        self.items.sort_by(modified_cmp);
+        for value in self.items.values_mut() {
+            match value {
+                Item::Value(Value::InlineTable(table)) if table.is_dotted() => {
+                    table.sort_values_by_internal(compare);
+                }
+                _ => {}
+            }
+        }
+    }
+
+    /// If a table has no key/value pairs and implicit, it will not be displayed.
+    ///
+    /// # Examples
+    ///
+    /// ```notrust
+    /// [target."x86_64/windows.json".dependencies]
+    /// ```
+    ///
+    /// In the document above, tables `target` and `target."x86_64/windows.json"` are implicit.
+    ///
+    /// ```
+    /// # #[cfg(feature = "parse")] {
+    /// # #[cfg(feature = "display")] {
+    /// use toml_edit::DocumentMut;
+    /// let mut doc = "[a]\n[a.b]\n".parse::<DocumentMut>().expect("invalid toml");
+    ///
+    /// doc["a"].as_table_mut().unwrap().set_implicit(true);
+    /// assert_eq!(doc.to_string(), "[a.b]\n");
+    /// # }
+    /// # }
+    /// ```
+    pub(crate) fn set_implicit(&mut self, implicit: bool) {
+        self.implicit = implicit;
+    }
+
+    /// If a table has no key/value pairs and implicit, it will not be displayed.
+    pub(crate) fn is_implicit(&self) -> bool {
+        self.implicit
+    }
+
+    /// Change this table's dotted status
+    pub fn set_dotted(&mut self, yes: bool) {
+        self.dotted = yes;
+    }
+
+    /// Check if this is a wrapper for dotted keys, rather than a standard table
+    pub fn is_dotted(&self) -> bool {
+        self.dotted
+    }
+
+    /// Returns the surrounding whitespace
+    pub fn decor_mut(&mut self) -> &mut Decor {
+        &mut self.decor
+    }
+
+    /// Returns the surrounding whitespace
+    pub fn decor(&self) -> &Decor {
+        &self.decor
+    }
+
+    /// Returns an accessor to a key's formatting
+    pub fn key(&self, key: &str) -> Option<&'_ Key> {
+        self.items.get_full(key).map(|(_, key, _)| key)
+    }
+
+    /// Returns an accessor to a key's formatting
+    pub fn key_mut(&mut self, key: &str) -> Option<KeyMut<'_>> {
+        use indexmap::map::MutableKeys;
+        self.items
+            .get_full_mut2(key)
+            .map(|(_, key, _)| key.as_mut())
+    }
+
+    /// The location within the original document
+    ///
+    /// This generally requires a [`Document`][crate::Document].
+    pub fn span(&self) -> Option<std::ops::Range<usize>> {
+        self.span.clone()
+    }
+
+    pub(crate) fn despan(&mut self, input: &str) {
+        use indexmap::map::MutableKeys;
+        self.span = None;
+        self.decor.despan(input);
+        self.trailing.despan(input);
+        for (key, value) in self.items.iter_mut2() {
+            key.despan(input);
+            value.despan(input);
+        }
+    }
+}
+
+impl InlineTable {
+    /// Returns an iterator over key/value pairs.
+    pub fn iter(&self) -> InlineTableIter<'_> {
+        Box::new(
+            self.items
+                .iter()
+                .filter(|(_, value)| !value.is_none())
+                .map(|(key, value)| (key.get(), value.as_value().unwrap())),
+        )
+    }
+
+    /// Returns an iterator over key/value pairs.
+    pub fn iter_mut(&mut self) -> InlineTableIterMut<'_> {
+        use indexmap::map::MutableKeys;
+        Box::new(
+            self.items
+                .iter_mut2()
+                .filter(|(_, value)| value.is_value())
+                .map(|(key, value)| (key.as_mut(), value.as_value_mut().unwrap())),
+        )
+    }
+
+    /// Returns the number of key/value pairs.
+    pub fn len(&self) -> usize {
+        self.iter().count()
+    }
+
+    /// Returns true if the table is empty.
+    pub fn is_empty(&self) -> bool {
+        self.len() == 0
+    }
+
+    /// Clears the table, removing all key-value pairs. Keeps the allocated memory for reuse.
+    pub fn clear(&mut self) {
+        self.items.clear();
+    }
+
+    /// Gets the given key's corresponding entry in the Table for in-place manipulation.
+    pub fn entry(&'_ mut self, key: impl Into<String>) -> InlineEntry<'_> {
+        match self.items.entry(key.into().into()) {
+            indexmap::map::Entry::Occupied(mut entry) => {
+                // Ensure it is a `Value` to simplify `InlineOccupiedEntry`'s code.
+                let scratch = std::mem::take(entry.get_mut());
+                let scratch = Item::Value(
+                    scratch
+                        .into_value()
+                        // HACK: `Item::None` is a corner case of a corner case, let's just pick a
+                        // "safe" value
+                        .unwrap_or_else(|_| Value::InlineTable(Default::default())),
+                );
+                *entry.get_mut() = scratch;
+
+                InlineEntry::Occupied(InlineOccupiedEntry { entry })
+            }
+            indexmap::map::Entry::Vacant(entry) => InlineEntry::Vacant(InlineVacantEntry { entry }),
+        }
+    }
+
+    /// Gets the given key's corresponding entry in the Table for in-place manipulation.
+    pub fn entry_format<'a>(&'a mut self, key: &Key) -> InlineEntry<'a> {
+        // Accept a `&Key` to be consistent with `entry`
+        match self.items.entry(key.clone()) {
+            indexmap::map::Entry::Occupied(mut entry) => {
+                // Ensure it is a `Value` to simplify `InlineOccupiedEntry`'s code.
+                let scratch = std::mem::take(entry.get_mut());
+                let scratch = Item::Value(
+                    scratch
+                        .into_value()
+                        // HACK: `Item::None` is a corner case of a corner case, let's just pick a
+                        // "safe" value
+                        .unwrap_or_else(|_| Value::InlineTable(Default::default())),
+                );
+                *entry.get_mut() = scratch;
+
+                InlineEntry::Occupied(InlineOccupiedEntry { entry })
+            }
+            indexmap::map::Entry::Vacant(entry) => InlineEntry::Vacant(InlineVacantEntry { entry }),
+        }
+    }
+    /// Return an optional reference to the value at the given the key.
+    pub fn get(&self, key: &str) -> Option<&Value> {
+        self.items.get(key).and_then(|value| value.as_value())
+    }
+
+    /// Return an optional mutable reference to the value at the given the key.
+    pub fn get_mut(&mut self, key: &str) -> Option<&mut Value> {
+        self.items
+            .get_mut(key)
+            .and_then(|value| value.as_value_mut())
+    }
+
+    /// Return references to the key-value pair stored for key, if it is present, else None.
+    pub fn get_key_value<'a>(&'a self, key: &str) -> Option<(&'a Key, &'a Item)> {
+        self.items.get_full(key).and_then(|(_, key, value)| {
+            if !value.is_none() {
+                Some((key, value))
+            } else {
+                None
+            }
+        })
+    }
+
+    /// Return mutable references to the key-value pair stored for key, if it is present, else None.
+    pub fn get_key_value_mut<'a>(&'a mut self, key: &str) -> Option<(KeyMut<'a>, &'a mut Item)> {
+        use indexmap::map::MutableKeys;
+        self.items.get_full_mut2(key).and_then(|(_, key, value)| {
+            if !value.is_none() {
+                Some((key.as_mut(), value))
+            } else {
+                None
+            }
+        })
+    }
+
+    /// Returns true if the table contains given key.
+    pub fn contains_key(&self, key: &str) -> bool {
+        if let Some(value) = self.items.get(key) {
+            value.is_value()
+        } else {
+            false
+        }
+    }
+
+    /// Inserts a key/value pair if the table does not contain the key.
+    /// Returns a mutable reference to the corresponding value.
+    pub fn get_or_insert<V: Into<Value>>(
+        &mut self,
+        key: impl Into<String>,
+        value: V,
+    ) -> &mut Value {
+        let key = key.into();
+        self.items
+            .entry(Key::new(key))
+            .or_insert(Item::Value(value.into()))
+            .as_value_mut()
+            .expect("non-value type in inline table")
+    }
+
+    /// Inserts a key-value pair into the map.
+    pub fn insert(&mut self, key: impl Into<String>, value: Value) -> Option<Value> {
+        use indexmap::map::MutableEntryKey;
+        let key = Key::new(key);
+        let value = Item::Value(value);
+        match self.items.entry(key.clone()) {
+            indexmap::map::Entry::Occupied(mut entry) => {
+                entry.key_mut().fmt();
+                let old = std::mem::replace(entry.get_mut(), value);
+                old.into_value().ok()
+            }
+            indexmap::map::Entry::Vacant(entry) => {
+                entry.insert(value);
+                None
+            }
+        }
+    }
+
+    /// Inserts a key-value pair into the map.
+    pub fn insert_formatted(&mut self, key: &Key, value: Value) -> Option<Value> {
+        use indexmap::map::MutableEntryKey;
+        let value = Item::Value(value);
+        match self.items.entry(key.clone()) {
+            indexmap::map::Entry::Occupied(mut entry) => {
+                *entry.key_mut() = key.clone();
+                let old = std::mem::replace(entry.get_mut(), value);
+                old.into_value().ok()
+            }
+            indexmap::map::Entry::Vacant(entry) => {
+                entry.insert(value);
+                None
+            }
+        }
+    }
+
+    /// Removes an item given the key.
+    pub fn remove(&mut self, key: &str) -> Option<Value> {
+        self.items
+            .shift_remove(key)
+            .and_then(|value| value.into_value().ok())
+    }
+
+    /// Removes a key from the map, returning the stored key and value if the key was previously in the map.
+    pub fn remove_entry(&mut self, key: &str) -> Option<(Key, Value)> {
+        self.items
+            .shift_remove_entry(key)
+            .and_then(|(key, value)| Some((key, value.into_value().ok()?)))
+    }
+
+    /// Retains only the elements specified by the `keep` predicate.
+    ///
+    /// In other words, remove all pairs `(key, value)` for which
+    /// `keep(&key, &mut value)` returns `false`.
+    ///
+    /// The elements are visited in iteration order.
+    pub fn retain<F>(&mut self, mut keep: F)
+    where
+        F: FnMut(&str, &mut Value) -> bool,
+    {
+        self.items.retain(|key, item| {
+            item.as_value_mut()
+                .map(|value| keep(key, value))
+                .unwrap_or(false)
+        });
+    }
+}
+
+#[cfg(feature = "display")]
+impl std::fmt::Display for InlineTable {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        crate::encode::encode_table(self, f, None, ("", ""))
+    }
+}
+
+impl<K: Into<Key>, V: Into<Value>> Extend<(K, V)> for InlineTable {
+    fn extend<T: IntoIterator<Item = (K, V)>>(&mut self, iter: T) {
+        for (key, value) in iter {
+            let key = key.into();
+            let value = Item::Value(value.into());
+            self.items.insert(key, value);
+        }
+    }
+}
+
+impl<K: Into<Key>, V: Into<Value>> FromIterator<(K, V)> for InlineTable {
+    fn from_iter<I>(iter: I) -> Self
+    where
+        I: IntoIterator<Item = (K, V)>,
+    {
+        let mut table = Self::new();
+        table.extend(iter);
+        table
+    }
+}
+
+impl IntoIterator for InlineTable {
+    type Item = (String, Value);
+    type IntoIter = InlineTableIntoIter;
+
+    fn into_iter(self) -> Self::IntoIter {
+        Box::new(
+            self.items
+                .into_iter()
+                .filter(|(_, value)| value.is_value())
+                .map(|(key, value)| (key.into(), value.into_value().unwrap())),
+        )
+    }
+}
+
+impl<'s> IntoIterator for &'s InlineTable {
+    type Item = (&'s str, &'s Value);
+    type IntoIter = InlineTableIter<'s>;
+
+    fn into_iter(self) -> Self::IntoIter {
+        self.iter()
+    }
+}
+
+fn decorate_inline_table(table: &mut InlineTable) {
+    use indexmap::map::MutableKeys;
+    for (mut key, value) in table
+        .items
+        .iter_mut2()
+        .filter(|(_, value)| value.is_value())
+        .map(|(key, value)| (key.as_mut(), value.as_value_mut().unwrap()))
+    {
+        key.leaf_decor_mut().clear();
+        key.dotted_decor_mut().clear();
+        value.decor_mut().clear();
+    }
+}
+
+/// An owned iterator type over an [`InlineTable`]'s [`Key`]/[`Value`] pairs
+pub type InlineTableIntoIter = Box<dyn Iterator<Item = (String, Value)>>;
+/// An iterator type over [`InlineTable`]'s [`Key`]/[`Value`] pairs
+pub type InlineTableIter<'a> = Box<dyn Iterator<Item = (&'a str, &'a Value)> + 'a>;
+/// A mutable iterator type over [`InlineTable`]'s [`Key`]/[`Value`] pairs
+pub type InlineTableIterMut<'a> = Box<dyn Iterator<Item = (KeyMut<'a>, &'a mut Value)> + 'a>;
+
+impl TableLike for InlineTable {
+    fn iter(&self) -> Iter<'_> {
+        Box::new(self.items.iter().map(|(key, value)| (key.get(), value)))
+    }
+    fn iter_mut(&mut self) -> IterMut<'_> {
+        use indexmap::map::MutableKeys;
+        Box::new(
+            self.items
+                .iter_mut2()
+                .map(|(key, value)| (key.as_mut(), value)),
+        )
+    }
+    fn clear(&mut self) {
+        self.clear();
+    }
+    fn entry<'a>(&'a mut self, key: &str) -> crate::Entry<'a> {
+        // Accept a `&str` rather than an owned type to keep `String`, well, internal
+        match self.items.entry(key.into()) {
+            indexmap::map::Entry::Occupied(entry) => {
+                crate::Entry::Occupied(crate::OccupiedEntry { entry })
+            }
+            indexmap::map::Entry::Vacant(entry) => {
+                crate::Entry::Vacant(crate::VacantEntry { entry })
+            }
+        }
+    }
+    fn entry_format<'a>(&'a mut self, key: &Key) -> crate::Entry<'a> {
+        // Accept a `&Key` to be consistent with `entry`
+        match self.items.entry(key.get().into()) {
+            indexmap::map::Entry::Occupied(entry) => {
+                crate::Entry::Occupied(crate::OccupiedEntry { entry })
+            }
+            indexmap::map::Entry::Vacant(entry) => {
+                crate::Entry::Vacant(crate::VacantEntry { entry })
+            }
+        }
+    }
+    fn get<'s>(&'s self, key: &str) -> Option<&'s Item> {
+        self.items.get(key)
+    }
+    fn get_mut<'s>(&'s mut self, key: &str) -> Option<&'s mut Item> {
+        self.items.get_mut(key)
+    }
+    fn get_key_value<'a>(&'a self, key: &str) -> Option<(&'a Key, &'a Item)> {
+        self.get_key_value(key)
+    }
+    fn get_key_value_mut<'a>(&'a mut self, key: &str) -> Option<(KeyMut<'a>, &'a mut Item)> {
+        self.get_key_value_mut(key)
+    }
+    fn contains_key(&self, key: &str) -> bool {
+        self.contains_key(key)
+    }
+    fn insert(&mut self, key: &str, value: Item) -> Option<Item> {
+        self.insert(key, value.into_value().unwrap())
+            .map(Item::Value)
+    }
+    fn remove(&mut self, key: &str) -> Option<Item> {
+        self.remove(key).map(Item::Value)
+    }
+
+    fn get_values(&self) -> Vec<(Vec<&Key>, &Value)> {
+        self.get_values()
+    }
+    fn fmt(&mut self) {
+        self.fmt();
+    }
+    fn sort_values(&mut self) {
+        self.sort_values();
+    }
+    fn set_dotted(&mut self, yes: bool) {
+        self.set_dotted(yes);
+    }
+    fn is_dotted(&self) -> bool {
+        self.is_dotted()
+    }
+
+    fn key(&self, key: &str) -> Option<&'_ Key> {
+        self.key(key)
+    }
+    fn key_mut(&mut self, key: &str) -> Option<KeyMut<'_>> {
+        self.key_mut(key)
+    }
+}
+
+// `{ key1 = value1, ... }`
+pub(crate) const DEFAULT_INLINE_KEY_DECOR: (&str, &str) = (" ", " ");
+
+/// A view into a single location in an [`InlineTable`], which may be vacant or occupied.
+pub enum InlineEntry<'a> {
+    /// An occupied Entry.
+    Occupied(InlineOccupiedEntry<'a>),
+    /// A vacant Entry.
+    Vacant(InlineVacantEntry<'a>),
+}
+
+impl<'a> InlineEntry<'a> {
+    /// Returns the entry key
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// use toml_edit::Table;
+    ///
+    /// let mut map = Table::new();
+    ///
+    /// assert_eq!("hello", map.entry("hello").key());
+    /// ```
+    pub fn key(&self) -> &str {
+        match self {
+            InlineEntry::Occupied(e) => e.key(),
+            InlineEntry::Vacant(e) => e.key(),
+        }
+    }
+
+    /// Ensures a value is in the entry by inserting the default if empty, and returns
+    /// a mutable reference to the value in the entry.
+    pub fn or_insert(self, default: Value) -> &'a mut Value {
+        match self {
+            InlineEntry::Occupied(entry) => entry.into_mut(),
+            InlineEntry::Vacant(entry) => entry.insert(default),
+        }
+    }
+
+    /// Ensures a value is in the entry by inserting the result of the default function if empty,
+    /// and returns a mutable reference to the value in the entry.
+    pub fn or_insert_with<F: FnOnce() -> Value>(self, default: F) -> &'a mut Value {
+        match self {
+            InlineEntry::Occupied(entry) => entry.into_mut(),
+            InlineEntry::Vacant(entry) => entry.insert(default()),
+        }
+    }
+}
+
+/// A view into a single occupied location in an [`InlineTable`].
+pub struct InlineOccupiedEntry<'a> {
+    entry: indexmap::map::OccupiedEntry<'a, Key, Item>,
+}
+
+impl<'a> InlineOccupiedEntry<'a> {
+    /// Gets a reference to the entry key
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// use toml_edit::Table;
+    ///
+    /// let mut map = Table::new();
+    ///
+    /// assert_eq!("foo", map.entry("foo").key());
+    /// ```
+    pub fn key(&self) -> &str {
+        self.entry.key().get()
+    }
+
+    /// Gets a mutable reference to the entry key
+    pub fn key_mut(&mut self) -> KeyMut<'_> {
+        use indexmap::map::MutableEntryKey;
+        self.entry.key_mut().as_mut()
+    }
+
+    /// Gets a reference to the value in the entry.
+    pub fn get(&self) -> &Value {
+        self.entry.get().as_value().unwrap()
+    }
+
+    /// Gets a mutable reference to the value in the entry.
+    pub fn get_mut(&mut self) -> &mut Value {
+        self.entry.get_mut().as_value_mut().unwrap()
+    }
+
+    /// Converts the `OccupiedEntry` into a mutable reference to the value in the entry
+    /// with a lifetime bound to the map itself
+    pub fn into_mut(self) -> &'a mut Value {
+        self.entry.into_mut().as_value_mut().unwrap()
+    }
+
+    /// Sets the value of the entry, and returns the entry's old value
+    pub fn insert(&mut self, value: Value) -> Value {
+        let value = Item::Value(value);
+        self.entry.insert(value).into_value().unwrap()
+    }
+
+    /// Takes the value out of the entry, and returns it
+    pub fn remove(self) -> Value {
+        self.entry.shift_remove().into_value().unwrap()
+    }
+}
+
+/// A view into a single empty location in an [`InlineTable`].
+pub struct InlineVacantEntry<'a> {
+    entry: indexmap::map::VacantEntry<'a, Key, Item>,
+}
+
+impl<'a> InlineVacantEntry<'a> {
+    /// Gets a reference to the entry key
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// use toml_edit::Table;
+    ///
+    /// let mut map = Table::new();
+    ///
+    /// assert_eq!("foo", map.entry("foo").key());
+    /// ```
+    pub fn key(&self) -> &str {
+        self.entry.key().get()
+    }
+
+    /// Sets the value of the entry with the `VacantEntry`'s key,
+    /// and returns a mutable reference to it
+    pub fn insert(self, value: Value) -> &'a mut Value {
+        let entry = self.entry;
+        let value = Item::Value(value);
+        entry.insert(value).as_value_mut().unwrap()
+    }
+}

vendor/toml_edit/src/item.rs

@@ -0,0 +1,450 @@
+use std::str::FromStr;
+
+use toml_datetime::Datetime;
+
+use crate::array_of_tables::ArrayOfTables;
+use crate::table::TableLike;
+use crate::{Array, InlineTable, Table, Value};
+
+/// Type representing either a value, a table, an array of tables, or none.
+#[derive(Debug, Default)]
+pub enum Item {
+    /// Type representing none.
+    #[default]
+    None,
+    /// Type representing value.
+    Value(Value),
+    /// Type representing table.
+    Table(Table),
+    /// Type representing array of tables.
+    ArrayOfTables(ArrayOfTables),
+}
+
+impl Item {
+    /// Sets `self` to the given item if `self` is none and
+    /// returns a mutable reference to `self`.
+    pub fn or_insert(&mut self, item: Self) -> &mut Self {
+        if self.is_none() {
+            *self = item;
+        }
+        self
+    }
+}
+
+// TODO: This should be generated by macro or derive
+/// Downcasting
+impl Item {
+    /// Text description of value type
+    pub fn type_name(&self) -> &'static str {
+        match self {
+            Self::None => "none",
+            Self::Value(v) => v.type_name(),
+            Self::Table(..) => "table",
+            Self::ArrayOfTables(..) => "array of tables",
+        }
+    }
+
+    /// Index into a TOML array or map. A string index can be used to access a
+    /// value in a map, and a usize index can be used to access an element of an
+    /// array.
+    ///
+    /// Returns `None` if:
+    /// - The type of `self` does not match the type of the
+    ///   index, for example if the index is a string and `self` is an array or a
+    ///   number.
+    /// - The given key does not exist in the map
+    ///   or the given index is not within the bounds of the array.
+    pub fn get<I: crate::index::Index>(&self, index: I) -> Option<&Self> {
+        index.index(self)
+    }
+
+    /// Mutably index into a TOML array or map. A string index can be used to
+    /// access a value in a map, and a usize index can be used to access an
+    /// element of an array.
+    ///
+    /// Returns `None` if:
+    /// - The type of `self` does not match the type of the
+    ///   index, for example if the index is a string and `self` is an array or a
+    ///   number.
+    /// - The given key does not exist in the map
+    ///   or the given index is not within the bounds of the array.
+    pub fn get_mut<I: crate::index::Index>(&mut self, index: I) -> Option<&mut Self> {
+        index.index_mut(self)
+    }
+
+    /// Casts `self` to [`Value`]
+    pub fn as_value(&self) -> Option<&Value> {
+        match *self {
+            Self::Value(ref v) => Some(v),
+            _ => None,
+        }
+    }
+    /// Casts `self` to [`Table`]
+    ///
+    /// <div class="warning">
+    ///
+    /// To operate on both [`Table`]s and [`InlineTable`]s, see [`Item::as_table_like`]
+    ///
+    /// </div>
+    pub fn as_table(&self) -> Option<&Table> {
+        match *self {
+            Self::Table(ref t) => Some(t),
+            _ => None,
+        }
+    }
+    /// Casts `self` to [`ArrayOfTables`]
+    pub fn as_array_of_tables(&self) -> Option<&ArrayOfTables> {
+        match *self {
+            Self::ArrayOfTables(ref a) => Some(a),
+            _ => None,
+        }
+    }
+    /// Casts `self` to mutable [`Value`].
+    pub fn as_value_mut(&mut self) -> Option<&mut Value> {
+        match *self {
+            Self::Value(ref mut v) => Some(v),
+            _ => None,
+        }
+    }
+    /// Casts `self` to mutable [`Table`]
+    ///
+    /// <div class="warning">
+    ///
+    /// To operate on both [`Table`]s and [`InlineTable`]s, see [`Item::as_table_like_mut`]
+    ///
+    /// </div>
+    pub fn as_table_mut(&mut self) -> Option<&mut Table> {
+        match *self {
+            Self::Table(ref mut t) => Some(t),
+            _ => None,
+        }
+    }
+    /// Casts `self` to mutable [`ArrayOfTables`]
+    pub fn as_array_of_tables_mut(&mut self) -> Option<&mut ArrayOfTables> {
+        match *self {
+            Self::ArrayOfTables(ref mut a) => Some(a),
+            _ => None,
+        }
+    }
+    /// Casts `self` to [`Value`]
+    pub fn into_value(self) -> Result<Value, Self> {
+        match self {
+            Self::None => Err(self),
+            Self::Value(v) => Ok(v),
+            Self::Table(v) => {
+                let v = v.into_inline_table();
+                Ok(Value::InlineTable(v))
+            }
+            Self::ArrayOfTables(v) => {
+                let v = v.into_array();
+                Ok(Value::Array(v))
+            }
+        }
+    }
+    /// In-place convert to a value
+    pub fn make_value(&mut self) {
+        let other = std::mem::take(self);
+        let other = other.into_value().map(Item::Value).unwrap_or(Self::None);
+        *self = other;
+    }
+    /// Casts `self` to [`Table`]
+    ///
+    /// <div class="warning">
+    ///
+    /// This does not include [`InlineTable`]s
+    ///
+    /// </div>
+    pub fn into_table(self) -> Result<Table, Self> {
+        match self {
+            Self::Table(t) => Ok(t),
+            Self::Value(Value::InlineTable(t)) => Ok(t.into_table()),
+            _ => Err(self),
+        }
+    }
+    /// Casts `self` to [`ArrayOfTables`]
+    pub fn into_array_of_tables(self) -> Result<ArrayOfTables, Self> {
+        match self {
+            Self::ArrayOfTables(a) => Ok(a),
+            Self::Value(Value::Array(a)) => {
+                if a.is_empty() {
+                    Err(Self::Value(Value::Array(a)))
+                } else if a.iter().all(|v| v.is_inline_table()) {
+                    let mut aot = ArrayOfTables::new();
+                    aot.values = a.values;
+                    for value in aot.values.iter_mut() {
+                        value.make_item();
+                    }
+                    Ok(aot)
+                } else {
+                    Err(Self::Value(Value::Array(a)))
+                }
+            }
+            _ => Err(self),
+        }
+    }
+    // Starting private because the name is unclear
+    pub(crate) fn make_item(&mut self) {
+        let other = std::mem::take(self);
+        let other = match other.into_table().map(Item::Table) {
+            Ok(i) => i,
+            Err(i) => i,
+        };
+        let other = match other.into_array_of_tables().map(Item::ArrayOfTables) {
+            Ok(i) => i,
+            Err(i) => i,
+        };
+        *self = other;
+    }
+    /// Returns true if `self` is a [`Value`]
+    pub fn is_value(&self) -> bool {
+        self.as_value().is_some()
+    }
+    /// Returns true if `self` is a [`Table`]
+    ///
+    /// <div class="warning">
+    ///
+    /// To operate on both [`Table`]s and [`InlineTable`]s, see [`Item::is_table_like`]
+    ///
+    /// </div>
+    pub fn is_table(&self) -> bool {
+        self.as_table().is_some()
+    }
+    /// Returns true if `self` is an [`ArrayOfTables`]
+    pub fn is_array_of_tables(&self) -> bool {
+        self.as_array_of_tables().is_some()
+    }
+    /// Returns true if `self` is `None`.
+    pub fn is_none(&self) -> bool {
+        matches!(*self, Self::None)
+    }
+
+    // Duplicate Value downcasting API
+
+    /// Casts `self` to integer.
+    pub fn as_integer(&self) -> Option<i64> {
+        self.as_value().and_then(Value::as_integer)
+    }
+
+    /// Returns true if `self` is an integer.
+    pub fn is_integer(&self) -> bool {
+        self.as_integer().is_some()
+    }
+
+    /// Casts `self` to float.
+    pub fn as_float(&self) -> Option<f64> {
+        self.as_value().and_then(Value::as_float)
+    }
+
+    /// Returns true if `self` is a float.
+    pub fn is_float(&self) -> bool {
+        self.as_float().is_some()
+    }
+
+    /// Casts `self` to boolean.
+    pub fn as_bool(&self) -> Option<bool> {
+        self.as_value().and_then(Value::as_bool)
+    }
+
+    /// Returns true if `self` is a boolean.
+    pub fn is_bool(&self) -> bool {
+        self.as_bool().is_some()
+    }
+
+    /// Casts `self` to str.
+    pub fn as_str(&self) -> Option<&str> {
+        self.as_value().and_then(Value::as_str)
+    }
+
+    /// Returns true if `self` is a string.
+    pub fn is_str(&self) -> bool {
+        self.as_str().is_some()
+    }
+
+    /// Casts `self` to date-time.
+    pub fn as_datetime(&self) -> Option<&Datetime> {
+        self.as_value().and_then(Value::as_datetime)
+    }
+
+    /// Returns true if `self` is a date-time.
+    pub fn is_datetime(&self) -> bool {
+        self.as_datetime().is_some()
+    }
+
+    /// Casts `self` to array.
+    pub fn as_array(&self) -> Option<&Array> {
+        self.as_value().and_then(Value::as_array)
+    }
+
+    /// Casts `self` to mutable array.
+    pub fn as_array_mut(&mut self) -> Option<&mut Array> {
+        self.as_value_mut().and_then(Value::as_array_mut)
+    }
+
+    /// Returns true if `self` is an array.
+    pub fn is_array(&self) -> bool {
+        self.as_array().is_some()
+    }
+
+    /// Casts `self` to inline table.
+    pub fn as_inline_table(&self) -> Option<&InlineTable> {
+        self.as_value().and_then(Value::as_inline_table)
+    }
+
+    /// Casts `self` to mutable inline table.
+    pub fn as_inline_table_mut(&mut self) -> Option<&mut InlineTable> {
+        self.as_value_mut().and_then(Value::as_inline_table_mut)
+    }
+
+    /// Returns true if `self` is an inline table.
+    pub fn is_inline_table(&self) -> bool {
+        self.as_inline_table().is_some()
+    }
+
+    /// Casts `self` to either a table or an inline table.
+    pub fn as_table_like(&self) -> Option<&dyn TableLike> {
+        self.as_table()
+            .map(|t| t as &dyn TableLike)
+            .or_else(|| self.as_inline_table().map(|t| t as &dyn TableLike))
+    }
+
+    /// Casts `self` to either a table or an inline table.
+    pub fn as_table_like_mut(&mut self) -> Option<&mut dyn TableLike> {
+        match self {
+            Self::Table(t) => Some(t as &mut dyn TableLike),
+            Self::Value(Value::InlineTable(t)) => Some(t as &mut dyn TableLike),
+            _ => None,
+        }
+    }
+
+    /// Returns true if `self` is either a table, or an inline table.
+    pub fn is_table_like(&self) -> bool {
+        self.as_table_like().is_some()
+    }
+
+    /// The location within the original document
+    ///
+    /// This generally requires a [`Document`][crate::Document].
+    pub fn span(&self) -> Option<std::ops::Range<usize>> {
+        match self {
+            Self::None => None,
+            Self::Value(v) => v.span(),
+            Self::Table(v) => v.span(),
+            Self::ArrayOfTables(v) => v.span(),
+        }
+    }
+
+    pub(crate) fn despan(&mut self, input: &str) {
+        match self {
+            Self::None => {}
+            Self::Value(v) => v.despan(input),
+            Self::Table(v) => v.despan(input),
+            Self::ArrayOfTables(v) => v.despan(input),
+        }
+    }
+}
+
+impl Clone for Item {
+    #[inline(never)]
+    fn clone(&self) -> Self {
+        match self {
+            Self::None => Self::None,
+            Self::Value(v) => Self::Value(v.clone()),
+            Self::Table(v) => Self::Table(v.clone()),
+            Self::ArrayOfTables(v) => Self::ArrayOfTables(v.clone()),
+        }
+    }
+}
+
+#[cfg(feature = "parse")]
+impl FromStr for Item {
+    type Err = crate::TomlError;
+
+    /// Parses a value from a &str
+    fn from_str(s: &str) -> Result<Self, Self::Err> {
+        let value = s.parse::<Value>()?;
+        Ok(Self::Value(value))
+    }
+}
+
+impl<'b> From<&'b Self> for Item {
+    fn from(s: &'b Self) -> Self {
+        s.clone()
+    }
+}
+
+impl From<Table> for Item {
+    fn from(s: Table) -> Self {
+        Self::Table(s)
+    }
+}
+
+impl From<ArrayOfTables> for Item {
+    fn from(s: ArrayOfTables) -> Self {
+        Self::ArrayOfTables(s)
+    }
+}
+
+impl<V: Into<Value>> From<V> for Item {
+    fn from(s: V) -> Self {
+        Self::Value(s.into())
+    }
+}
+
+#[cfg(feature = "display")]
+impl std::fmt::Display for Item {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match &self {
+            Self::None => Ok(()),
+            Self::Value(v) => v.fmt(f),
+            Self::Table(v) => v.fmt(f),
+            Self::ArrayOfTables(v) => v.fmt(f),
+        }
+    }
+}
+
+/// Returns a formatted value.
+///
+/// Since formatting is part of a `Value`, the right hand side of the
+/// assignment needs to be decorated with a space before the value.
+/// The `value` function does just that.
+///
+/// # Examples
+/// ```rust
+/// # #[cfg(feature = "display")] {
+/// # #[cfg(feature = "parse")] {
+/// # use toml_edit::*;
+/// let mut table = Table::default();
+/// let mut array = Array::default();
+/// array.push("hello");
+/// array.push("\\, world"); // \ is only allowed in a literal string
+/// table["key1"] = value("value1");
+/// table["key2"] = value(42);
+/// table["key3"] = value(array);
+/// assert_eq!(table.to_string(),
+/// r#"key1 = "value1"
+/// key2 = 42
+/// key3 = ["hello", '\, world']
+/// "#);
+/// # }
+/// # }
+/// ```
+pub fn value<V: Into<Value>>(v: V) -> Item {
+    Item::Value(v.into())
+}
+
+/// Returns an empty table.
+pub fn table() -> Item {
+    Item::Table(Table::new())
+}
+
+/// Returns an empty array of tables.
+pub fn array() -> Item {
+    Item::ArrayOfTables(ArrayOfTables::new())
+}
+
+#[test]
+#[cfg(feature = "parse")]
+#[cfg(feature = "display")]
+fn string_roundtrip() {
+    value("hello").to_string().parse::<Item>().unwrap();
+}

vendor/toml_edit/src/key.rs

@@ -0,0 +1,397 @@
+use std::borrow::Cow;
+use std::str::FromStr;
+
+#[cfg(feature = "display")]
+use toml_writer::ToTomlKey as _;
+
+use crate::repr::{Decor, Repr};
+
+/// For Key/[`Value`][crate::Value] pairs under a [`Table`][crate::Table] header or inside an
+/// [`InlineTable`][crate::InlineTable]
+///
+/// # Examples
+///
+/// ```notrust
+/// [dependencies."nom"]
+/// version = "5.0"
+/// 'literal key' = "nonsense"
+/// "basic string key" = 42
+/// ```
+///
+/// There are 3 types of keys:
+///
+/// 1. Bare keys (`version` and `dependencies`)
+///
+/// 2. Basic quoted keys (`"basic string key"` and `"nom"`)
+///
+/// 3. Literal quoted keys (`'literal key'`)
+///
+/// For details see [toml spec](https://github.com/toml-lang/toml/#keyvalue-pair).
+///
+/// To parse a key use `FromStr` trait implementation: `"string".parse::<Key>()`.
+#[derive(Debug)]
+pub struct Key {
+    key: String,
+    pub(crate) repr: Option<Repr>,
+    pub(crate) leaf_decor: Decor,
+    pub(crate) dotted_decor: Decor,
+}
+
+impl Key {
+    /// Create a new table key
+    pub fn new(key: impl Into<String>) -> Self {
+        Self {
+            key: key.into(),
+            repr: None,
+            leaf_decor: Default::default(),
+            dotted_decor: Default::default(),
+        }
+    }
+
+    /// Parse a TOML key expression
+    ///
+    /// Unlike `"".parse<Key>()`, this supports dotted keys.
+    #[cfg(feature = "parse")]
+    pub fn parse(repr: &str) -> Result<Vec<Self>, crate::TomlError> {
+        Self::try_parse_path(repr)
+    }
+
+    pub(crate) fn with_repr_unchecked(mut self, repr: Repr) -> Self {
+        self.repr = Some(repr);
+        self
+    }
+
+    /// While creating the `Key`, add `Decor` to it for the line entry
+    pub fn with_leaf_decor(mut self, decor: Decor) -> Self {
+        self.leaf_decor = decor;
+        self
+    }
+
+    /// While creating the `Key`, add `Decor` to it for between dots
+    pub fn with_dotted_decor(mut self, decor: Decor) -> Self {
+        self.dotted_decor = decor;
+        self
+    }
+
+    /// Access a mutable proxy for the `Key`.
+    pub fn as_mut(&mut self) -> KeyMut<'_> {
+        KeyMut { key: self }
+    }
+
+    /// Returns the parsed key value.
+    pub fn get(&self) -> &str {
+        &self.key
+    }
+
+    /// Returns key raw representation, if available.
+    pub fn as_repr(&self) -> Option<&Repr> {
+        self.repr.as_ref()
+    }
+
+    /// Returns the default raw representation.
+    #[cfg(feature = "display")]
+    pub fn default_repr(&self) -> Repr {
+        let output = toml_writer::TomlKeyBuilder::new(&self.key)
+            .as_default()
+            .to_toml_key();
+        Repr::new_unchecked(output)
+    }
+
+    /// Returns a raw representation.
+    #[cfg(feature = "display")]
+    pub fn display_repr(&self) -> Cow<'_, str> {
+        self.as_repr()
+            .and_then(|r| r.as_raw().as_str())
+            .map(Cow::Borrowed)
+            .unwrap_or_else(|| {
+                Cow::Owned(self.default_repr().as_raw().as_str().unwrap().to_owned())
+            })
+    }
+
+    /// Returns the surrounding whitespace for the line entry
+    pub fn leaf_decor_mut(&mut self) -> &mut Decor {
+        &mut self.leaf_decor
+    }
+
+    /// Returns the surrounding whitespace for between dots
+    pub fn dotted_decor_mut(&mut self) -> &mut Decor {
+        &mut self.dotted_decor
+    }
+
+    /// Returns the surrounding whitespace for the line entry
+    pub fn leaf_decor(&self) -> &Decor {
+        &self.leaf_decor
+    }
+
+    /// Returns the surrounding whitespace for between dots
+    pub fn dotted_decor(&self) -> &Decor {
+        &self.dotted_decor
+    }
+
+    /// The location within the original document
+    ///
+    /// This generally requires a [`Document`][crate::Document].
+    pub fn span(&self) -> Option<std::ops::Range<usize>> {
+        self.repr.as_ref().and_then(|r| r.span())
+    }
+
+    pub(crate) fn despan(&mut self, input: &str) {
+        self.leaf_decor.despan(input);
+        self.dotted_decor.despan(input);
+        if let Some(repr) = &mut self.repr {
+            repr.despan(input);
+        }
+    }
+
+    /// Auto formats the key.
+    pub fn fmt(&mut self) {
+        self.repr = None;
+        self.leaf_decor.clear();
+        self.dotted_decor.clear();
+    }
+
+    #[cfg(feature = "parse")]
+    fn try_parse_simple(s: &str) -> Result<Self, crate::TomlError> {
+        let source = toml_parser::Source::new(s);
+        let mut sink = crate::error::TomlSink::<Option<_>>::new(source);
+        let mut key = crate::parser::parse_key(source, &mut sink);
+        if let Some(err) = sink.into_inner() {
+            Err(err)
+        } else {
+            key.despan(s);
+            Ok(key)
+        }
+    }
+
+    #[cfg(feature = "parse")]
+    fn try_parse_path(s: &str) -> Result<Vec<Self>, crate::TomlError> {
+        let source = toml_parser::Source::new(s);
+        let mut sink = crate::error::TomlSink::<Option<_>>::new(source);
+        let mut keys = crate::parser::parse_key_path(source, &mut sink);
+        if let Some(err) = sink.into_inner() {
+            Err(err)
+        } else {
+            for key in &mut keys {
+                key.despan(s);
+            }
+            Ok(keys)
+        }
+    }
+}
+
+impl Clone for Key {
+    #[inline(never)]
+    fn clone(&self) -> Self {
+        Self {
+            key: self.key.clone(),
+            repr: self.repr.clone(),
+            leaf_decor: self.leaf_decor.clone(),
+            dotted_decor: self.dotted_decor.clone(),
+        }
+    }
+}
+
+impl std::ops::Deref for Key {
+    type Target = str;
+
+    fn deref(&self) -> &Self::Target {
+        self.get()
+    }
+}
+
+impl std::borrow::Borrow<str> for Key {
+    #[inline]
+    fn borrow(&self) -> &str {
+        self.get()
+    }
+}
+
+impl std::hash::Hash for Key {
+    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+        self.get().hash(state);
+    }
+}
+
+impl Ord for Key {
+    fn cmp(&self, other: &Self) -> std::cmp::Ordering {
+        self.get().cmp(other.get())
+    }
+}
+
+impl PartialOrd for Key {
+    fn partial_cmp(&self, other: &Self) -> Option<std::cmp::Ordering> {
+        Some(self.cmp(other))
+    }
+}
+
+impl Eq for Key {}
+
+impl PartialEq for Key {
+    #[inline]
+    fn eq(&self, other: &Self) -> bool {
+        PartialEq::eq(self.get(), other.get())
+    }
+}
+
+impl PartialEq<str> for Key {
+    #[inline]
+    fn eq(&self, other: &str) -> bool {
+        PartialEq::eq(self.get(), other)
+    }
+}
+
+impl PartialEq<&str> for Key {
+    #[inline]
+    fn eq(&self, other: &&str) -> bool {
+        PartialEq::eq(self.get(), *other)
+    }
+}
+
+impl PartialEq<String> for Key {
+    #[inline]
+    fn eq(&self, other: &String) -> bool {
+        PartialEq::eq(self.get(), other.as_str())
+    }
+}
+
+#[cfg(feature = "display")]
+impl std::fmt::Display for Key {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        crate::encode::encode_key(self, f, None)
+    }
+}
+
+#[cfg(feature = "parse")]
+impl FromStr for Key {
+    type Err = crate::TomlError;
+
+    /// Tries to parse a key from a &str,
+    /// if fails, tries as basic quoted key (surrounds with "")
+    /// and then literal quoted key (surrounds with '')
+    fn from_str(s: &str) -> Result<Self, Self::Err> {
+        Self::try_parse_simple(s)
+    }
+}
+
+impl<'b> From<&'b str> for Key {
+    fn from(s: &'b str) -> Self {
+        Self::new(s)
+    }
+}
+
+impl<'b> From<&'b String> for Key {
+    fn from(s: &'b String) -> Self {
+        Self::new(s)
+    }
+}
+
+impl From<String> for Key {
+    fn from(s: String) -> Self {
+        Self::new(s)
+    }
+}
+
+#[doc(hidden)]
+impl From<Key> for String {
+    fn from(key: Key) -> Self {
+        key.key
+    }
+}
+
+/// A mutable reference to a [`Key`]'s formatting
+#[derive(Debug, Eq, PartialEq, PartialOrd, Ord, Hash)]
+pub struct KeyMut<'k> {
+    key: &'k mut Key,
+}
+
+impl KeyMut<'_> {
+    /// Returns the parsed key value.
+    pub fn get(&self) -> &str {
+        self.key.get()
+    }
+
+    /// Returns the raw representation, if available.
+    pub fn as_repr(&self) -> Option<&Repr> {
+        self.key.as_repr()
+    }
+
+    /// Returns the default raw representation.
+    #[cfg(feature = "display")]
+    pub fn default_repr(&self) -> Repr {
+        self.key.default_repr()
+    }
+
+    /// Returns a raw representation.
+    #[cfg(feature = "display")]
+    pub fn display_repr(&self) -> Cow<'_, str> {
+        self.key.display_repr()
+    }
+
+    /// Returns the surrounding whitespace for the line entry
+    pub fn leaf_decor_mut(&mut self) -> &mut Decor {
+        self.key.leaf_decor_mut()
+    }
+
+    /// Returns the surrounding whitespace for between dots
+    pub fn dotted_decor_mut(&mut self) -> &mut Decor {
+        self.key.dotted_decor_mut()
+    }
+
+    /// Returns the surrounding whitespace for the line entry
+    pub fn leaf_decor(&self) -> &Decor {
+        self.key.leaf_decor()
+    }
+
+    /// Returns the surrounding whitespace for between dots
+    pub fn dotted_decor(&self) -> &Decor {
+        self.key.dotted_decor()
+    }
+
+    /// Auto formats the key.
+    pub fn fmt(&mut self) {
+        self.key.fmt();
+    }
+}
+
+impl std::ops::Deref for KeyMut<'_> {
+    type Target = str;
+
+    fn deref(&self) -> &Self::Target {
+        self.get()
+    }
+}
+
+impl PartialEq<str> for KeyMut<'_> {
+    #[inline]
+    fn eq(&self, other: &str) -> bool {
+        PartialEq::eq(self.get(), other)
+    }
+}
+
+impl<'s> PartialEq<&'s str> for KeyMut<'s> {
+    #[inline]
+    fn eq(&self, other: &&str) -> bool {
+        PartialEq::eq(self.get(), *other)
+    }
+}
+
+impl PartialEq<String> for KeyMut<'_> {
+    #[inline]
+    fn eq(&self, other: &String) -> bool {
+        PartialEq::eq(self.get(), other.as_str())
+    }
+}
+
+#[cfg(feature = "display")]
+impl std::fmt::Display for KeyMut<'_> {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        std::fmt::Display::fmt(&self.key, f)
+    }
+}
+
+#[test]
+#[cfg(feature = "parse")]
+#[cfg(feature = "display")]
+fn string_roundtrip() {
+    Key::new("hello").to_string().parse::<Key>().unwrap();
+}

vendor/toml_edit/src/lib.rs

@@ -0,0 +1,147 @@
+//! # `toml_edit`
+//!
+//! This crate allows you to parse and modify toml
+//! documents, while preserving comments, spaces *and
+//! relative order* of items.
+//!
+//! If you also need the ease of a more traditional API, see the [`toml`] crate.
+//!
+//! # Example
+//!
+//! ```rust
+//! # #[cfg(feature = "parse")] {
+//! # #[cfg(feature = "display")] {
+//! use toml_edit::{DocumentMut, value};
+//!
+//! let toml = r#"
+//! "hello" = 'toml!' # comment
+//! ['a'.b]
+//! "#;
+//! let mut doc = toml.parse::<DocumentMut>().expect("invalid doc");
+//! assert_eq!(doc.to_string(), toml);
+//! // let's add a new key/value pair inside a.b: c = {d = "hello"}
+//! doc["a"]["b"]["c"]["d"] = value("hello");
+//! // autoformat inline table a.b.c: { d = "hello" }
+//! doc["a"]["b"]["c"].as_inline_table_mut().map(|t| t.fmt());
+//! let expected = r#"
+//! "hello" = 'toml!' # comment
+//! ['a'.b]
+//! c = { d = "hello" }
+//! "#;
+//! assert_eq!(doc.to_string(), expected);
+//! # }
+//! # }
+//! ```
+//!
+//! ## Controlling formatting
+//!
+//! By default, values are created with default formatting
+//! ```rust
+//! # #[cfg(feature = "display")] {
+//! # #[cfg(feature = "parse")] {
+//! let mut doc = toml_edit::DocumentMut::new();
+//! doc["foo"] = toml_edit::value("bar");
+//! let expected = r#"foo = "bar"
+//! "#;
+//! assert_eq!(doc.to_string(), expected);
+//! # }
+//! # }
+//! ```
+//!
+//! You can choose a custom TOML representation by parsing the value.
+//! ```rust
+//! # #[cfg(feature = "display")] {
+//! # #[cfg(feature = "parse")] {
+//! let mut doc = toml_edit::DocumentMut::new();
+//! doc["foo"] = "'bar'".parse::<toml_edit::Item>().unwrap();
+//! let expected = r#"foo = 'bar'
+//! "#;
+//! assert_eq!(doc.to_string(), expected);
+//! # }
+//! # }
+//! ```
+//!
+//! ## Limitations
+//!
+//! Things it does not preserve:
+//!
+//! * Order of dotted keys, see [issue](https://github.com/toml-rs/toml/issues/163).
+//!
+//! [`toml`]: https://docs.rs/toml/latest/toml/
+
+// https://github.com/Marwes/combine/issues/172
+#![recursion_limit = "256"]
+#![cfg_attr(docsrs, feature(doc_cfg))]
+#![warn(missing_docs)]
+#![warn(clippy::print_stderr)]
+#![warn(clippy::print_stdout)]
+
+mod array;
+mod array_of_tables;
+mod document;
+#[cfg(feature = "display")]
+mod encode;
+mod error;
+mod index;
+mod inline_table;
+mod item;
+mod key;
+#[cfg(feature = "parse")]
+mod parser;
+mod raw_string;
+mod repr;
+mod table;
+mod value;
+
+#[cfg(feature = "serde")]
+pub mod de;
+#[cfg(feature = "serde")]
+pub mod ser;
+
+pub mod visit;
+pub mod visit_mut;
+
+pub use crate::array::{Array, ArrayIntoIter, ArrayIter, ArrayIterMut};
+pub use crate::array_of_tables::{
+    ArrayOfTables, ArrayOfTablesIntoIter, ArrayOfTablesIter, ArrayOfTablesIterMut,
+};
+pub use crate::document::DocumentMut;
+/// Type representing a parsed TOML document
+#[deprecated(since = "0.23.0", note = "Replaced with `Document`")]
+pub type ImDocument<S> = Document<S>;
+pub use crate::document::Document;
+pub use crate::error::TomlError;
+pub use crate::inline_table::{
+    InlineEntry, InlineOccupiedEntry, InlineTable, InlineTableIntoIter, InlineTableIter,
+    InlineTableIterMut, InlineVacantEntry,
+};
+pub use crate::item::{Item, array, table, value};
+pub use crate::key::{Key, KeyMut};
+pub use crate::raw_string::RawString;
+pub use crate::repr::{Decor, Formatted, Repr};
+pub use crate::table::{
+    Entry, IntoIter, Iter, IterMut, OccupiedEntry, Table, TableLike, VacantEntry,
+};
+pub use crate::value::Value;
+pub use toml_datetime::*;
+
+// Prevent users from some traits.
+pub(crate) mod private {
+    pub trait Sealed {}
+    impl Sealed for usize {}
+    impl Sealed for str {}
+    impl Sealed for String {}
+    impl Sealed for i64 {}
+    impl Sealed for f64 {}
+    impl Sealed for bool {}
+    impl Sealed for crate::Datetime {}
+    impl<T: ?Sized> Sealed for &T where T: Sealed {}
+    impl Sealed for crate::Table {}
+    impl Sealed for crate::InlineTable {}
+}
+
+#[doc = include_str!("../README.md")]
+#[cfg(doctest)]
+#[cfg(feature = "display")]
+#[cfg(feature = "parse")]
+pub struct ReadmeDoctests;

vendor/toml_edit/src/parser/array.rs

@@ -0,0 +1,156 @@
+use crate::parser::inline_table::on_inline_table;
+use crate::parser::value::on_scalar;
+use crate::{Array, RawString, Value};
+
+use crate::parser::prelude::*;
+
+/// ```abnf
+/// ;; Array
+///
+/// array = array-open array-values array-close
+/// array-values =  ws-comment-newline val ws-comment-newline array-sep array-values
+/// array-values =/ ws-comment-newline val ws-comment-newline [ array-sep ]
+/// ```
+pub(crate) fn on_array(
+    open_event: &toml_parser::parser::Event,
+    input: &mut Input<'_>,
+    source: toml_parser::Source<'_>,
+    errors: &mut dyn ErrorSink,
+) -> Value {
+    #[cfg(feature = "debug")]
+    let _scope = TraceScope::new("array::on_array");
+    let mut result = Array::new();
+
+    let mut state = State::default();
+    state.open(open_event);
+    while let Some(event) = input.next_token() {
+        match event.kind() {
+            EventKind::StdTableOpen
+            | EventKind::ArrayTableOpen
+            | EventKind::InlineTableClose
+            | EventKind::SimpleKey
+            | EventKind::KeySep
+            | EventKind::KeyValSep
+            | EventKind::StdTableClose
+            | EventKind::ArrayTableClose => {
+                #[cfg(feature = "debug")]
+                trace(
+                    &format!("unexpected {event:?}"),
+                    anstyle::AnsiColor::Red.on_default(),
+                );
+                break;
+            }
+            EventKind::Error => {
+                #[cfg(feature = "debug")]
+                trace(
+                    &format!("unexpected {event:?}"),
+                    anstyle::AnsiColor::Red.on_default(),
+                );
+                continue;
+            }
+            EventKind::InlineTableOpen => {
+                let value = on_inline_table(event, input, source, errors);
+                state.capture_value(event, value);
+            }
+            EventKind::ArrayOpen => {
+                let value = on_array(event, input, source, errors);
+                state.capture_value(event, value);
+            }
+            EventKind::Scalar => {
+                let value = on_scalar(event, source, errors);
+                state.capture_value(event, value);
+            }
+            EventKind::ValueSep => {
+                state.finish_value(event, &mut result);
+                state.sep_value(event);
+            }
+            EventKind::Whitespace | EventKind::Comment | EventKind::Newline => {
+                state.whitespace(event);
+            }
+            EventKind::ArrayClose => {
+                state.finish_value(event, &mut result);
+                state.close(open_event, event, &mut result);
+                break;
+            }
+        }
+    }
+
+    Value::Array(result)
+}
+
+#[derive(Default)]
+struct State {
+    current_prefix: Option<toml_parser::Span>,
+    current_value: Option<Value>,
+    trailing_start: Option<usize>,
+    current_suffix: Option<toml_parser::Span>,
+}
+
+impl State {
+    fn open(&mut self, open_event: &toml_parser::parser::Event) {
+        self.trailing_start = Some(open_event.span().end());
+    }
+
+    fn whitespace(&mut self, event: &toml_parser::parser::Event) {
+        let decor = if self.is_prefix() {
+            self.current_prefix.get_or_insert(event.span())
+        } else {
+            self.current_suffix.get_or_insert(event.span())
+        };
+        *decor = decor.append(event.span());
+    }
+
+    fn is_prefix(&self) -> bool {
+        self.current_value.is_none()
+    }
+
+    fn capture_value(&mut self, event: &toml_parser::parser::Event, value: Value) {
+        self.trailing_start = None;
+        self.current_prefix
+            .get_or_insert_with(|| event.span().before());
+        self.current_value = Some(value);
+    }
+
+    fn finish_value(&mut self, event: &toml_parser::parser::Event, result: &mut Array) {
+        #[cfg(feature = "debug")]
+        let _scope = TraceScope::new("array::finish_value");
+        if let Some(mut value) = self.current_value.take() {
+            let prefix = self
+                .current_prefix
+                .take()
+                .expect("setting a value should set a prefix");
+            let suffix = self
+                .current_suffix
+                .take()
+                .unwrap_or_else(|| event.span().before());
+            let decor = value.decor_mut();
+            decor.set_prefix(RawString::with_span(prefix.start()..prefix.end()));
+            decor.set_suffix(RawString::with_span(suffix.start()..suffix.end()));
+            result.push_formatted(value);
+        }
+    }
+
+    fn sep_value(&mut self, event: &toml_parser::parser::Event) {
+        self.trailing_start = Some(event.span().end());
+    }
+
+    fn close(
+        &mut self,
+        open_event: &toml_parser::parser::Event,
+        close_event: &toml_parser::parser::Event,
+        result: &mut Array,
+    ) {
+        #[cfg(feature = "debug")]
+        let _scope = TraceScope::new("array::close");
+        let trailing_comma = self.trailing_start.is_some() && !result.is_empty();
+        let span = open_event.span().append(close_event.span());
+        let trailing_start = self
+            .trailing_start
+            .unwrap_or_else(|| close_event.span().start());
+        let trailing_end = close_event.span().start();
+
+        result.set_trailing_comma(trailing_comma);
+        result.set_trailing(RawString::with_span(trailing_start..trailing_end));
+        result.span = Some(span.start()..span.end());
+    }
+}

vendor/toml_edit/src/parser/debug.rs

@@ -0,0 +1,98 @@
+pub(crate) struct TraceScope {
+    text: String,
+    style: anstyle::Style,
+    guard: DebugDepthGuard,
+}
+
+impl TraceScope {
+    pub(crate) fn new(text: impl core::fmt::Display) -> Self {
+        let text = text.to_string();
+        let style = anstyle::Style::new();
+        trace(&format!("> {text}"), style);
+        Self {
+            text,
+            style,
+            guard: DEBUG_DEPTH.scoped(),
+        }
+    }
+}
+
+impl Drop for TraceScope {
+    fn drop(&mut self) {
+        let text = &self.text;
+        let style = self.style;
+        drop(self.guard.take());
+        trace(&format!("< {text}"), style);
+    }
+}
+
+pub(crate) fn trace(text: &str, style: anstyle::Style) {
+    #![allow(unexpected_cfgs)] // HACK: fixed in newer versions
+    let depth = DEBUG_DEPTH.depth();
+    anstream::eprintln!("{:depth$}{style}{text}{style:#}", "");
+}
+
+pub(crate) struct DebugDepth(core::sync::atomic::AtomicUsize);
+
+impl DebugDepth {
+    pub(crate) fn scoped(&self) -> DebugDepthGuard {
+        DebugDepthGuard::new()
+    }
+
+    pub(crate) fn enter_unchecked(&self) -> usize {
+        self.0.fetch_add(1, core::sync::atomic::Ordering::SeqCst)
+    }
+
+    pub(crate) fn exit_unchecked(&self) {
+        let _ = self.0.fetch_sub(1, core::sync::atomic::Ordering::SeqCst);
+    }
+
+    pub(crate) fn depth(&self) -> usize {
+        self.0.load(core::sync::atomic::Ordering::SeqCst)
+    }
+}
+
+static DEBUG_DEPTH: DebugDepth = DebugDepth(core::sync::atomic::AtomicUsize::new(0));
+
+pub(crate) struct DebugDepthGuard {
+    depth: usize,
+    inc: bool,
+}
+
+impl DebugDepthGuard {
+    pub(crate) fn new() -> Self {
+        let depth = DEBUG_DEPTH.enter_unchecked();
+        Self { depth, inc: true }
+    }
+
+    fn take(&mut self) -> Self {
+        let depth = self.depth;
+        let inc = self.inc;
+        self.inc = false;
+        Self { depth, inc }
+    }
+}
+
+impl Drop for DebugDepthGuard {
+    fn drop(&mut self) {
+        if self.inc {
+            DEBUG_DEPTH.exit_unchecked();
+        }
+    }
+}
+
+impl AsRef<usize> for DebugDepthGuard {
+    #[inline(always)]
+    fn as_ref(&self) -> &usize {
+        &self.depth
+    }
+}
+
+impl core::ops::Deref for DebugDepthGuard {
+    type Target = usize;
+
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.depth
+    }
+}

vendor/toml_edit/src/parser/document.rs

@@ -0,0 +1,573 @@
+use crate::Item;
+use crate::RawString;
+use crate::Value;
+use crate::key::Key;
+use crate::parser::key::on_key;
+use crate::parser::prelude::*;
+use crate::parser::value::value;
+use crate::repr::Decor;
+use crate::{ArrayOfTables, Document, Table};
+
+/// ```abnf
+/// ;; TOML
+///
+/// toml = expression *( newline expression )
+///
+/// expression = ( ( ws comment ) /
+///                ( ws keyval ws [ comment ] ) /
+///                ( ws table ws [ comment ] ) /
+///                  ws )
+/// ```
+pub(crate) fn document<'s>(
+    input: &mut Input<'_>,
+    source: toml_parser::Source<'s>,
+    errors: &mut dyn ErrorSink,
+) -> Document<&'s str> {
+    #[cfg(feature = "debug")]
+    let _scope = TraceScope::new("document::document");
+    let mut state = State::default();
+    while let Some(event) = input.next_token() {
+        match event.kind() {
+            EventKind::InlineTableOpen
+            | EventKind::InlineTableClose
+            | EventKind::ArrayOpen
+            | EventKind::ArrayClose
+            | EventKind::Scalar
+            | EventKind::ValueSep
+            | EventKind::Error
+            | EventKind::KeySep
+            | EventKind::KeyValSep
+            | EventKind::StdTableClose
+            | EventKind::ArrayTableClose => {
+                #[cfg(feature = "debug")]
+                trace(
+                    &format!("unexpected {event:?}"),
+                    anstyle::AnsiColor::Red.on_default(),
+                );
+                continue;
+            }
+            EventKind::StdTableOpen | EventKind::ArrayTableOpen => {
+                state.finish_table(errors);
+
+                let prefix = state.take_trailing();
+                let header = on_table(event, input, source, errors);
+                let suffix = ws_comment_newline(input)
+                    .map(|s| RawString::with_span(s.start()..s.end()))
+                    .unwrap_or_default();
+                let decor = Decor::new(prefix, suffix);
+
+                state.start_table(header, decor, errors);
+            }
+            EventKind::SimpleKey => {
+                let key_prefix = state.take_trailing();
+                let (path, key) = on_key(event, input, source, errors);
+                let Some(mut key) = key else {
+                    break;
+                };
+                let Some(next_event) = input.next_token() else {
+                    break;
+                };
+                let keyval_event;
+                let key_suffix;
+                if next_event.kind() == EventKind::Whitespace {
+                    key_suffix = Some(next_event);
+                    let Some(next_event) = input.next_token() else {
+                        break;
+                    };
+                    keyval_event = next_event;
+                } else {
+                    key_suffix = None;
+                    keyval_event = next_event;
+                }
+                if keyval_event.kind() != EventKind::KeyValSep {
+                    break;
+                }
+                let key_suffix = key_suffix
+                    .map(|e| RawString::with_span(e.span().start()..e.span().end()))
+                    .unwrap_or_default();
+                key.leaf_decor.set_prefix(key_prefix);
+                key.leaf_decor.set_suffix(key_suffix);
+
+                let value_prefix = if input
+                    .first()
+                    .map(|e| e.kind() == EventKind::Whitespace)
+                    .unwrap_or(false)
+                {
+                    input
+                        .next_token()
+                        .map(|e| RawString::with_span(e.span().start()..e.span().end()))
+                } else {
+                    None
+                }
+                .unwrap_or_default();
+                let mut value = value(input, source, errors);
+                let value_suffix = ws_comment_newline(input)
+                    .map(|s| RawString::with_span(s.start()..s.end()))
+                    .unwrap_or_default();
+                let decor = value.decor_mut();
+                decor.set_prefix(value_prefix);
+                decor.set_suffix(value_suffix);
+
+                state.capture_key_value(path, key, value, errors);
+            }
+            EventKind::Whitespace | EventKind::Comment | EventKind::Newline => {
+                state.capture_trailing(event);
+            }
+        }
+    }
+
+    state.finish_table(errors);
+
+    let trailing = state.take_trailing();
+    Document {
+        root: Item::Table(state.root),
+        trailing,
+        raw: source.input(),
+    }
+}
+
+/// ```abnf
+/// ;; Standard Table
+///
+/// std-table = std-table-open key *( table-key-sep key) std-table-close
+///
+/// ;; Array Table
+///
+/// array-table = array-table-open key *( table-key-sep key) array-table-close
+/// ```
+fn on_table(
+    open_event: &toml_parser::parser::Event,
+    input: &mut Input<'_>,
+    source: toml_parser::Source<'_>,
+    errors: &mut dyn ErrorSink,
+) -> TableHeader {
+    #[cfg(feature = "debug")]
+    let _scope = TraceScope::new("document::on_table");
+    let is_array = open_event.kind() == EventKind::ArrayTableOpen;
+    let mut current_path = None;
+    let mut current_key = None;
+    let mut current_span = open_event.span();
+    let mut current_prefix = None;
+    let mut current_suffix = None;
+
+    while let Some(event) = input.next_token() {
+        match event.kind() {
+            EventKind::InlineTableOpen
+            | EventKind::InlineTableClose
+            | EventKind::ArrayOpen
+            | EventKind::ArrayClose
+            | EventKind::Scalar
+            | EventKind::ValueSep
+            | EventKind::Error
+            | EventKind::KeySep
+            | EventKind::KeyValSep
+            | EventKind::StdTableOpen
+            | EventKind::ArrayTableOpen
+            | EventKind::Comment
+            | EventKind::Newline => {
+                #[cfg(feature = "debug")]
+                trace(
+                    &format!("unexpected {event:?}"),
+                    anstyle::AnsiColor::Red.on_default(),
+                );
+                continue;
+            }
+            EventKind::ArrayTableClose | EventKind::StdTableClose => {
+                current_span = current_span.append(event.span());
+                break;
+            }
+            EventKind::SimpleKey => {
+                current_prefix.get_or_insert_with(|| event.span().before());
+                let (path, key) = on_key(event, input, source, errors);
+                current_path = Some(path);
+                current_key = key;
+                current_suffix.get_or_insert_with(|| event.span().after());
+            }
+            EventKind::Whitespace => {
+                if current_key.is_some() {
+                    current_suffix = Some(event.span());
+                } else {
+                    current_prefix = Some(event.span());
+                }
+            }
+        }
+    }
+
+    let prefix = current_prefix
+        .take()
+        .expect("setting a key should set a prefix");
+    let suffix = current_suffix
+        .take()
+        .expect("setting a key should set a suffix");
+    if let Some(last_key) = current_key.as_mut() {
+        let prefix = RawString::with_span(prefix.start()..prefix.end());
+        let suffix = RawString::with_span(suffix.start()..suffix.end());
+        let leaf_decor = Decor::new(prefix, suffix);
+        *last_key.leaf_decor_mut() = leaf_decor;
+    }
+
+    TableHeader {
+        path: current_path.unwrap_or_default(),
+        key: current_key,
+        span: current_span,
+        is_array,
+    }
+}
+
+struct TableHeader {
+    path: Vec<Key>,
+    key: Option<Key>,
+    span: toml_parser::Span,
+    is_array: bool,
+}
+
+fn ws_comment_newline(input: &mut Input<'_>) -> Option<toml_parser::Span> {
+    let mut current_span = None;
+    while let Some(event) = input.next_token() {
+        match event.kind() {
+            EventKind::InlineTableOpen
+            | EventKind::InlineTableClose
+            | EventKind::ArrayOpen
+            | EventKind::ArrayClose
+            | EventKind::Scalar
+            | EventKind::ValueSep
+            | EventKind::Error
+            | EventKind::SimpleKey
+            | EventKind::KeySep
+            | EventKind::KeyValSep
+            | EventKind::StdTableOpen
+            | EventKind::ArrayTableOpen
+            | EventKind::StdTableClose
+            | EventKind::ArrayTableClose => {
+                #[cfg(feature = "debug")]
+                trace(
+                    &format!("unexpected {event:?}"),
+                    anstyle::AnsiColor::Red.on_default(),
+                );
+            }
+            EventKind::Whitespace | EventKind::Comment => {
+                let span = current_span.get_or_insert_with(|| event.span());
+                *span = span.append(event.span());
+            }
+            EventKind::Newline => {
+                break;
+            }
+        }
+    }
+
+    current_span
+}
+
+#[derive(Default)]
+struct State {
+    root: Table,
+    current_table: Table,
+    current_trailing: Option<toml_parser::Span>,
+    current_header: Option<TableHeader>,
+    current_position: isize,
+}
+
+impl State {
+    fn capture_trailing(&mut self, event: &toml_parser::parser::Event) {
+        let decor = self.current_trailing.get_or_insert(event.span());
+        *decor = decor.append(event.span());
+    }
+
+    fn capture_key_value(
+        &mut self,
+        path: Vec<Key>,
+        key: Key,
+        value: Value,
+        errors: &mut dyn ErrorSink,
+    ) {
+        #[cfg(feature = "debug")]
+        let _scope = TraceScope::new("document::capture_key_value");
+        #[cfg(feature = "debug")]
+        trace(
+            &format!(
+                "path={:?}",
+                path.iter().map(|k| k.get()).collect::<Vec<_>>()
+            ),
+            anstyle::AnsiColor::Blue.on_default(),
+        );
+        #[cfg(feature = "debug")]
+        trace(
+            &format!("key={key}",),
+            anstyle::AnsiColor::Blue.on_default(),
+        );
+        #[cfg(feature = "debug")]
+        trace(
+            &format!("value={value:?}",),
+            anstyle::AnsiColor::Blue.on_default(),
+        );
+
+        let dotted = !path.is_empty();
+        let Some(parent_table) = descend_path(&mut self.current_table, &path, dotted, errors)
+        else {
+            return;
+        };
+        // "Likewise, using dotted keys to redefine tables already defined in [table] form is not allowed"
+        let mixed_table_types = dotted && !parent_table.is_implicit();
+        if mixed_table_types {
+            #[cfg(feature = "debug")]
+            trace(
+                &format!("dotted={dotted}"),
+                anstyle::AnsiColor::Red.on_default(),
+            );
+            #[cfg(feature = "debug")]
+            trace(
+                &format!("parent_table.is_implicit={}", parent_table.is_implicit()),
+                anstyle::AnsiColor::Red.on_default(),
+            );
+            let key_span = get_key_span(&key).expect("all keys have spans");
+            errors.report_error(ParseError::new("duplicate key").with_unexpected(key_span));
+            return;
+        }
+        let key_span = get_key_span(&key).expect("all keys have spans");
+        match parent_table.items.entry(key) {
+            indexmap::map::Entry::Vacant(o) => {
+                o.insert(Item::Value(value));
+            }
+            indexmap::map::Entry::Occupied(existing) => {
+                // "Since tables cannot be defined more than once, redefining such tables using a [table] header is not allowed"
+                let old_span = existing.key().span().expect("all items have spans");
+                let old_span = toml_parser::Span::new_unchecked(old_span.start, old_span.end);
+                errors.report_error(
+                    ParseError::new("duplicate key")
+                        .with_unexpected(key_span)
+                        .with_context(old_span),
+                );
+            }
+        }
+    }
+
+    fn finish_table(&mut self, errors: &mut dyn ErrorSink) {
+        #[cfg(feature = "debug")]
+        let _scope = TraceScope::new("document::finish_table");
+        let mut prev_table = std::mem::take(&mut self.current_table);
+        if let Some(header) = self.current_header.take() {
+            let Some(key) = &header.key else {
+                return;
+            };
+            prev_table.span = Some(header.span.start()..header.span.end());
+
+            let parent_key = &header.path;
+            let dotted = false;
+            let Some(parent_table) = descend_path(&mut self.root, parent_key, dotted, errors)
+            else {
+                return;
+            };
+            #[cfg(feature = "debug")]
+            trace(
+                &format!("key={key}",),
+                anstyle::AnsiColor::Blue.on_default(),
+            );
+            if header.is_array {
+                let entry = parent_table
+                    .entry_format(key)
+                    .or_insert(Item::ArrayOfTables(ArrayOfTables::new()));
+                let Some(array) = entry.as_array_of_tables_mut() else {
+                    #[cfg(feature = "debug")]
+                    trace(
+                        "is_array_of_tables=false",
+                        anstyle::AnsiColor::Red.on_default(),
+                    );
+                    let key_span = get_key_span(key).expect("all keys have spans");
+                    let old_span = entry.span().unwrap_or_default();
+                    let old_span = toml_parser::Span::new_unchecked(old_span.start, old_span.end);
+                    errors.report_error(
+                        ParseError::new("duplicate key")
+                            .with_unexpected(key_span)
+                            .with_context(old_span),
+                    );
+                    return;
+                };
+                array.push(prev_table);
+                let span = if let (Some(first), Some(last)) = (
+                    array.values.first().and_then(|t| t.span()),
+                    array.values.last().and_then(|t| t.span()),
+                ) {
+                    Some((first.start)..(last.end))
+                } else {
+                    None
+                };
+                array.span = span;
+            } else {
+                let existing = parent_table.insert_formatted(key, Item::Table(prev_table));
+                debug_assert!(existing.is_none());
+            }
+        } else {
+            prev_table.span = Some(Default::default());
+            self.root = prev_table;
+        }
+    }
+
+    fn start_table(&mut self, header: TableHeader, decor: Decor, errors: &mut dyn ErrorSink) {
+        if !header.is_array {
+            // 1. Look up the table on start to ensure the duplicate_key error points to the right line
+            // 2. Ensure any child tables from an implicit table are preserved
+            let root = &mut self.root;
+            if let (Some(parent_table), Some(key)) =
+                (descend_path(root, &header.path, false, errors), &header.key)
+            {
+                if let Some((old_key, old_value)) = parent_table.remove_entry(key.get()) {
+                    match old_value {
+                        Item::Table(t) if t.implicit && !t.is_dotted() => {
+                            self.current_table = t;
+                        }
+                        // Since tables cannot be defined more than once, redefining such tables using a [table] header is not allowed. Likewise, using dotted keys to redefine tables already defined in [table] form is not allowed.
+                        old_value => {
+                            #[cfg(feature = "debug")]
+                            if let Item::Table(t) = &old_value {
+                                trace(
+                                    &format!("t.dotted={}", t.is_dotted()),
+                                    anstyle::AnsiColor::Red.on_default(),
+                                );
+                                trace(
+                                    &format!("t.is_implicit={}", t.is_implicit()),
+                                    anstyle::AnsiColor::Red.on_default(),
+                                );
+                            } else {
+                                trace(
+                                    &format!("old_value.type_str={}", old_value.type_name()),
+                                    anstyle::AnsiColor::Red.on_default(),
+                                );
+                            }
+                            let old_span = old_key.span().expect("all items have spans");
+                            let old_span =
+                                toml_parser::Span::new_unchecked(old_span.start, old_span.end);
+                            let key_span = get_key_span(key).expect("all keys have spans");
+                            errors.report_error(
+                                ParseError::new("duplicate key")
+                                    .with_unexpected(key_span)
+                                    .with_context(old_span),
+                            );
+
+                            if let Item::Table(t) = old_value {
+                                self.current_table = t;
+                            }
+                        }
+                    }
+                }
+            }
+        }
+
+        self.current_position += 1;
+        self.current_table.decor = decor;
+        self.current_table.set_implicit(false);
+        self.current_table.set_dotted(false);
+        self.current_table.set_position(Some(self.current_position));
+        self.current_table.span = Some(header.span.start()..header.span.end());
+        self.current_header = Some(header);
+    }
+
+    fn take_trailing(&mut self) -> RawString {
+        self.current_trailing
+            .take()
+            .map(|s| RawString::with_span(s.start()..s.end()))
+            .unwrap_or_default()
+    }
+}
+
+fn descend_path<'t>(
+    mut table: &'t mut Table,
+    path: &[Key],
+    dotted: bool,
+    errors: &mut dyn ErrorSink,
+) -> Option<&'t mut Table> {
+    #[cfg(feature = "debug")]
+    let _scope = TraceScope::new("document::descend_path");
+    #[cfg(feature = "debug")]
+    trace(
+        &format!(
+            "path={:?}",
+            path.iter().map(|k| k.get()).collect::<Vec<_>>()
+        ),
+        anstyle::AnsiColor::Blue.on_default(),
+    );
+    for key in path.iter() {
+        #[cfg(feature = "debug")]
+        trace(
+            &format!("path[_]={key:?}"),
+            anstyle::AnsiColor::Blue.on_default(),
+        );
+        table = match table.entry_format(key) {
+            crate::Entry::Vacant(entry) => {
+                let mut new_table = Table::new();
+                new_table.span = key.span();
+                new_table.set_implicit(true);
+                new_table.set_dotted(dotted);
+
+                entry.insert(Item::Table(new_table)).as_table_mut().unwrap()
+            }
+            crate::Entry::Occupied(entry) => {
+                match entry.into_mut() {
+                    Item::ArrayOfTables(array) => {
+                        debug_assert!(!array.is_empty());
+
+                        let index = array.len() - 1;
+                        let last_child = array.get_mut(index).unwrap();
+
+                        last_child
+                    }
+                    Item::Table(sweet_child_of_mine) => {
+                        if dotted && sweet_child_of_mine.is_implicit() {
+                            // Since tables cannot be defined more than once, redefining such tables using a
+                            // [table] header is not allowed. Likewise, using dotted keys to redefine tables
+                            // already defined in [table] form is not allowed.
+                            sweet_child_of_mine.set_dotted(true);
+                        }
+                        // Since tables cannot be defined more than once, redefining such tables using a
+                        // [table] header is not allowed. Likewise, using dotted keys to redefine tables
+                        // already defined in [table] form is not allowed.
+                        let mixed_table_types = dotted && !sweet_child_of_mine.is_implicit();
+                        if mixed_table_types {
+                            #[cfg(feature = "debug")]
+                            trace(
+                                &format!("dotted={dotted}"),
+                                anstyle::AnsiColor::Red.on_default(),
+                            );
+                            #[cfg(feature = "debug")]
+                            trace(
+                                &format!(
+                                    "sweet_child_of_mine.is_implicit={}",
+                                    sweet_child_of_mine.is_implicit()
+                                ),
+                                anstyle::AnsiColor::Red.on_default(),
+                            );
+                            let key_span = get_key_span(key).expect("all keys have spans");
+                            errors.report_error(
+                                ParseError::new("duplicate key").with_unexpected(key_span),
+                            );
+                            return None;
+                        }
+                        sweet_child_of_mine
+                    }
+                    Item::Value(existing) => {
+                        let old_span = existing.span().expect("all items have spans");
+                        let old_span =
+                            toml_parser::Span::new_unchecked(old_span.start, old_span.end);
+                        let key_span = get_key_span(key).expect("all keys have spans");
+                        errors.report_error(
+                            ParseError::new(format!(
+                                "cannot extend value of type {} with a dotted key",
+                                existing.type_name()
+                            ))
+                            .with_unexpected(key_span)
+                            .with_context(old_span),
+                        );
+                        return None;
+                    }
+                    Item::None => unreachable!(),
+                }
+            }
+        };
+    }
+    Some(table)
+}
+
+fn get_key_span(key: &Key) -> Option<toml_parser::Span> {
+    key.as_repr()
+        .and_then(|r| r.span())
+        .map(|s| toml_parser::Span::new_unchecked(s.start, s.end))
+}

vendor/toml_edit/src/parser/inline_table.rs

@@ -0,0 +1,337 @@
+use crate::key::Key;
+use crate::parser::array::on_array;
+use crate::parser::key::on_key;
+use crate::parser::prelude::*;
+use crate::parser::value::on_scalar;
+use crate::repr::Decor;
+use crate::{InlineTable, Item, RawString, Value};
+
+use indexmap::map::Entry;
+
+/// ```abnf
+/// ;; Inline Table
+///
+/// inline-table = inline-table-open [ inline-table-keyvals ] ws-comment-newline inline-table-close
+/// ```
+pub(crate) fn on_inline_table(
+    open_event: &toml_parser::parser::Event,
+    input: &mut Input<'_>,
+    source: toml_parser::Source<'_>,
+    errors: &mut dyn ErrorSink,
+) -> Value {
+    #[cfg(feature = "debug")]
+    let _scope = TraceScope::new("inline_table::on_inline_table");
+    let mut result = InlineTable::new();
+
+    let mut state = State::default();
+    state.open(open_event);
+    while let Some(event) = input.next_token() {
+        match event.kind() {
+            EventKind::StdTableOpen
+            | EventKind::ArrayTableOpen
+            | EventKind::StdTableClose
+            | EventKind::ArrayClose
+            | EventKind::ArrayTableClose
+            | EventKind::KeySep => {
+                #[cfg(feature = "debug")]
+                trace(
+                    &format!("unexpected {event:?}"),
+                    anstyle::AnsiColor::Red.on_default(),
+                );
+                break;
+            }
+            EventKind::Error => {
+                #[cfg(feature = "debug")]
+                trace(
+                    &format!("unexpected {event:?}"),
+                    anstyle::AnsiColor::Red.on_default(),
+                );
+                continue;
+            }
+            EventKind::SimpleKey => {
+                let (path, key) = on_key(event, input, source, errors);
+                state.capture_key(event, path, key);
+            }
+            EventKind::KeyValSep => {
+                state.finish_key(event);
+            }
+            EventKind::InlineTableOpen => {
+                let value = on_inline_table(event, input, source, errors);
+                state.capture_value(event, value);
+            }
+            EventKind::ArrayOpen => {
+                let value = on_array(event, input, source, errors);
+                state.capture_value(event, value);
+            }
+            EventKind::Scalar => {
+                let value = on_scalar(event, source, errors);
+                state.capture_value(event, value);
+            }
+            EventKind::ValueSep => {
+                state.finish_value(event, &mut result, errors);
+                state.sep_value(event);
+            }
+            EventKind::Whitespace | EventKind::Comment | EventKind::Newline => {
+                state.whitespace(event);
+            }
+            EventKind::InlineTableClose => {
+                state.finish_value(event, &mut result, errors);
+                state.close(open_event, event, &mut result);
+                break;
+            }
+        }
+    }
+
+    Value::InlineTable(result)
+}
+
+#[derive(Default)]
+struct State {
+    current_prefix: Option<toml_parser::Span>,
+    current_key: Option<(Vec<Key>, Key)>,
+    seen_keyval_sep: bool,
+    current_value: Option<Value>,
+    trailing_start: Option<usize>,
+    current_suffix: Option<toml_parser::Span>,
+}
+
+impl State {
+    fn open(&mut self, open_event: &toml_parser::parser::Event) {
+        self.trailing_start = Some(open_event.span().end());
+    }
+
+    fn whitespace(&mut self, event: &toml_parser::parser::Event) {
+        #[cfg(feature = "debug")]
+        let _scope = TraceScope::new("inline_table::whitespace");
+        let decor = if self.is_prefix() {
+            self.current_prefix.get_or_insert(event.span())
+        } else {
+            self.current_suffix.get_or_insert(event.span())
+        };
+        *decor = decor.append(event.span());
+    }
+
+    fn is_prefix(&self) -> bool {
+        if self.seen_keyval_sep {
+            self.current_value.is_none()
+        } else {
+            self.current_key.is_none()
+        }
+    }
+
+    fn capture_key(
+        &mut self,
+        event: &toml_parser::parser::Event,
+        path: Vec<Key>,
+        key: Option<Key>,
+    ) {
+        #[cfg(feature = "debug")]
+        let _scope = TraceScope::new("inline_table::capture_key");
+        self.trailing_start = None;
+        self.current_prefix
+            .get_or_insert_with(|| event.span().before());
+        if let Some(key) = key {
+            self.current_key = Some((path, key));
+        }
+    }
+
+    fn finish_key(&mut self, event: &toml_parser::parser::Event) {
+        #[cfg(feature = "debug")]
+        let _scope = TraceScope::new("inline_table::finish_key");
+        self.seen_keyval_sep = true;
+        if let Some(last_key) = self.current_key.as_mut().map(|(_, k)| k) {
+            let prefix = self
+                .current_prefix
+                .take()
+                .expect("setting a key should set a prefix");
+            let suffix = self
+                .current_suffix
+                .take()
+                .unwrap_or_else(|| event.span().before());
+            let prefix = RawString::with_span(prefix.start()..prefix.end());
+            let suffix = RawString::with_span(suffix.start()..suffix.end());
+            let leaf_decor = Decor::new(prefix, suffix);
+            *last_key.leaf_decor_mut() = leaf_decor;
+        }
+    }
+
+    fn capture_value(&mut self, event: &toml_parser::parser::Event, value: Value) {
+        #[cfg(feature = "debug")]
+        let _scope = TraceScope::new("inline_table::capture_value");
+        self.current_prefix
+            .get_or_insert_with(|| event.span().before());
+        self.current_value = Some(value);
+    }
+
+    fn finish_value(
+        &mut self,
+        event: &toml_parser::parser::Event,
+        result: &mut InlineTable,
+        errors: &mut dyn ErrorSink,
+    ) {
+        #[cfg(feature = "debug")]
+        let _scope = TraceScope::new("inline_table::finish_value");
+        self.seen_keyval_sep = false;
+        if let (Some((path, key)), Some(mut value)) =
+            (self.current_key.take(), self.current_value.take())
+        {
+            let prefix = self
+                .current_prefix
+                .take()
+                .expect("setting a value should set a prefix");
+            let suffix = self
+                .current_suffix
+                .take()
+                .unwrap_or_else(|| event.span().before());
+            let Some(table) = descend_path(result, &path, true, errors) else {
+                return;
+            };
+
+            let decor = value.decor_mut();
+            decor.set_prefix(RawString::with_span(prefix.start()..prefix.end()));
+            decor.set_suffix(RawString::with_span(suffix.start()..suffix.end()));
+
+            // "Likewise, using dotted keys to redefine tables already defined in [table] form is not allowed"
+            let mixed_table_types = table.is_dotted() == path.is_empty();
+            if mixed_table_types {
+                #[cfg(feature = "debug")]
+                trace(
+                    &format!("table.dotted={}", table.is_dotted()),
+                    anstyle::AnsiColor::Red.on_default(),
+                );
+                #[cfg(feature = "debug")]
+                trace(
+                    &format!("path.is_empty={}", path.is_empty()),
+                    anstyle::AnsiColor::Red.on_default(),
+                );
+                let key_span = get_key_span(&key).unwrap_or_else(|| event.span());
+                errors.report_error(ParseError::new("duplicate key").with_unexpected(key_span));
+            } else {
+                let key_span = get_key_span(&key).unwrap_or_else(|| event.span());
+                match table.items.entry(key) {
+                    Entry::Vacant(o) => {
+                        o.insert(Item::Value(value));
+                    }
+                    Entry::Occupied(o) => {
+                        let old_span = get_key_span(o.key()).unwrap_or_else(|| event.span());
+                        errors.report_error(
+                            ParseError::new("duplicate key")
+                                .with_unexpected(key_span)
+                                .with_context(old_span),
+                        );
+                    }
+                }
+            }
+        }
+    }
+
+    fn sep_value(&mut self, event: &toml_parser::parser::Event) {
+        self.trailing_start = Some(event.span().end());
+    }
+
+    fn close(
+        &mut self,
+        open_event: &toml_parser::parser::Event,
+        close_event: &toml_parser::parser::Event,
+        result: &mut InlineTable,
+    ) {
+        #[cfg(feature = "debug")]
+        let _scope = TraceScope::new("inline_table::close");
+        let trailing_comma = self.trailing_start.is_some() && !result.is_empty();
+        let span = open_event.span().append(close_event.span());
+        let trailing_start = self
+            .trailing_start
+            .unwrap_or_else(|| close_event.span().start());
+        let trailing_end = close_event.span().start();
+
+        result.set_trailing_comma(trailing_comma);
+        result.set_trailing(RawString::with_span(trailing_start..trailing_end));
+        result.span = Some(span.start()..span.end());
+    }
+}
+
+fn descend_path<'a>(
+    mut table: &'a mut InlineTable,
+    path: &'a [Key],
+    dotted: bool,
+    errors: &mut dyn ErrorSink,
+) -> Option<&'a mut InlineTable> {
+    #[cfg(feature = "debug")]
+    let _scope = TraceScope::new("inline_table::descend_path");
+    #[cfg(feature = "debug")]
+    trace(
+        &format!(
+            "path={:?}",
+            path.iter().map(|k| k.get()).collect::<Vec<_>>()
+        ),
+        anstyle::AnsiColor::Blue.on_default(),
+    );
+    for key in path.iter() {
+        #[cfg(feature = "debug")]
+        trace(
+            &format!("path[_]={key:?}"),
+            anstyle::AnsiColor::Blue.on_default(),
+        );
+        table = match table.entry_format(key) {
+            crate::InlineEntry::Vacant(entry) => {
+                let mut new_table = InlineTable::new();
+                new_table.span = key.span();
+                new_table.set_implicit(true);
+                new_table.set_dotted(dotted);
+                entry
+                    .insert(Value::InlineTable(new_table))
+                    .as_inline_table_mut()
+                    .unwrap()
+            }
+            crate::InlineEntry::Occupied(entry) => {
+                match entry.into_mut() {
+                    Value::InlineTable(sweet_child_of_mine) => {
+                        // Since tables cannot be defined more than once, redefining such tables using a
+                        // [table] header is not allowed. Likewise, using dotted keys to redefine tables
+                        // already defined in [table] form is not allowed.
+                        let mixed_table_types = dotted && !sweet_child_of_mine.is_implicit();
+                        if mixed_table_types {
+                            #[cfg(feature = "debug")]
+                            trace(
+                                &format!("dotted={dotted}"),
+                                anstyle::AnsiColor::Red.on_default(),
+                            );
+                            #[cfg(feature = "debug")]
+                            trace(
+                                &format!(
+                                    "sweet_child_of_mine.is_implicit={}",
+                                    sweet_child_of_mine.is_implicit()
+                                ),
+                                anstyle::AnsiColor::Red.on_default(),
+                            );
+                            let key_span = get_key_span(key).expect("all keys have spans");
+                            errors.report_error(
+                                ParseError::new("duplicate key").with_unexpected(key_span),
+                            );
+                            return None;
+                        }
+                        sweet_child_of_mine
+                    }
+                    existing => {
+                        let key_span = get_key_span(key).expect("all keys have spans");
+                        errors.report_error(
+                            ParseError::new(format!(
+                                "cannot extend value of type {} with a dotted key",
+                                existing.type_name()
+                            ))
+                            .with_unexpected(key_span),
+                        );
+                        return None;
+                    }
+                }
+            }
+        };
+    }
+    Some(table)
+}
+
+fn get_key_span(key: &Key) -> Option<toml_parser::Span> {
+    key.as_repr()
+        .and_then(|r| r.span())
+        .map(|s| toml_parser::Span::new_unchecked(s.start, s.end))
+}

vendor/toml_edit/src/parser/key.rs

@@ -0,0 +1,168 @@
+use crate::RawString;
+use crate::key::Key;
+use crate::parser::prelude::*;
+use crate::repr::Decor;
+use crate::repr::Repr;
+
+/// ```abnf
+/// key = simple-key / dotted-key
+/// dotted-key = simple-key 1*( dot-sep simple-key )
+/// ```
+pub(crate) fn on_key(
+    key_event: &toml_parser::parser::Event,
+    input: &mut Input<'_>,
+    source: toml_parser::Source<'_>,
+    errors: &mut dyn ErrorSink,
+) -> (Vec<Key>, Option<Key>) {
+    #[cfg(feature = "debug")]
+    let _scope = TraceScope::new("key::on_key");
+    let mut result_path = Vec::new();
+    let mut result_key = None;
+
+    let mut state = State::new(key_event);
+    if more_key(input) {
+        while let Some(event) = input.next_token() {
+            match event.kind() {
+                EventKind::StdTableOpen
+                | EventKind::ArrayTableOpen
+                | EventKind::InlineTableOpen
+                | EventKind::InlineTableClose
+                | EventKind::ArrayOpen
+                | EventKind::ArrayClose
+                | EventKind::Scalar
+                | EventKind::ValueSep
+                | EventKind::Comment
+                | EventKind::Newline
+                | EventKind::KeyValSep
+                | EventKind::StdTableClose
+                | EventKind::ArrayTableClose
+                | EventKind::Error => {
+                    #[cfg(feature = "debug")]
+                    trace(
+                        &format!("unexpected {event:?}"),
+                        anstyle::AnsiColor::Red.on_default(),
+                    );
+                    continue;
+                }
+                EventKind::SimpleKey => {
+                    state.current_key = Some(*event);
+
+                    if !more_key(input) {
+                        break;
+                    }
+                }
+                EventKind::Whitespace => {
+                    state.whitespace(event);
+                }
+                EventKind::KeySep => {
+                    state.close_key(&mut result_path, &mut result_key, source, errors);
+                }
+            }
+        }
+    }
+
+    state.close_key(&mut result_path, &mut result_key, source, errors);
+
+    #[cfg(not(feature = "unbounded"))]
+    if super::LIMIT <= result_path.len() as u32 {
+        errors.report_error(ParseError::new("recursion limit"));
+        return (Vec::new(), None);
+    }
+
+    (result_path, result_key)
+}
+
+fn more_key(input: &Input<'_>) -> bool {
+    let first = input.get(0).map(|e| e.kind());
+    let second = input.get(1).map(|e| e.kind());
+    if first == Some(EventKind::KeySep) {
+        true
+    } else if first == Some(EventKind::Whitespace) && second == Some(EventKind::KeySep) {
+        true
+    } else {
+        false
+    }
+}
+
+struct State {
+    current_prefix: Option<toml_parser::Span>,
+    current_key: Option<toml_parser::parser::Event>,
+    current_suffix: Option<toml_parser::Span>,
+}
+
+impl State {
+    fn new(key_event: &toml_parser::parser::Event) -> Self {
+        Self {
+            current_prefix: None,
+            current_key: Some(*key_event),
+            current_suffix: None,
+        }
+    }
+
+    fn whitespace(&mut self, event: &toml_parser::parser::Event) {
+        if self.current_key.is_some() {
+            self.current_suffix = Some(event.span());
+        } else {
+            self.current_prefix = Some(event.span());
+        }
+    }
+
+    fn close_key(
+        &mut self,
+        result_path: &mut Vec<Key>,
+        result_key: &mut Option<Key>,
+        source: toml_parser::Source<'_>,
+        errors: &mut dyn ErrorSink,
+    ) {
+        let Some(key) = self.current_key.take() else {
+            return;
+        };
+        let prefix_span = self
+            .current_prefix
+            .take()
+            .unwrap_or_else(|| key.span().before());
+        let prefix = RawString::with_span(prefix_span.start()..prefix_span.end());
+
+        let suffix_span = self
+            .current_suffix
+            .take()
+            .unwrap_or_else(|| key.span().after());
+        let suffix = RawString::with_span(suffix_span.start()..suffix_span.end());
+
+        let key_span = key.span();
+        let key_raw = RawString::with_span(key_span.start()..key_span.end());
+
+        let raw = source.get(key).unwrap();
+        let mut decoded = std::borrow::Cow::Borrowed("");
+        raw.decode_key(&mut decoded, errors);
+
+        let key = Key::new(decoded)
+            .with_repr_unchecked(Repr::new_unchecked(key_raw))
+            .with_dotted_decor(Decor::new(prefix, suffix));
+        if let Some(last_key) = result_key.replace(key) {
+            result_path.push(last_key);
+        }
+    }
+}
+
+/// ```abnf
+/// simple-key = quoted-key / unquoted-key
+/// quoted-key = basic-string / literal-string
+/// ```
+pub(crate) fn on_simple_key(
+    event: &toml_parser::parser::Event,
+    source: toml_parser::Source<'_>,
+    errors: &mut dyn ErrorSink,
+) -> (RawString, String) {
+    #[cfg(feature = "debug")]
+    let _scope = TraceScope::new("key::on_simple_key");
+    let raw = source.get(event).unwrap();
+
+    let mut key = std::borrow::Cow::Borrowed("");
+    raw.decode_key(&mut key, errors);
+
+    let span = event.span();
+    let raw = RawString::with_span(span.start()..span.end());
+    let key = String::from(key);
+    (raw, key)
+}

vendor/toml_edit/src/parser/mod.rs

@@ -0,0 +1,156 @@
+#![allow(clippy::type_complexity)]
+
+use crate::RawString;
+#[cfg(not(feature = "unbounded"))]
+use toml_parser::parser::RecursionGuard;
+use toml_parser::parser::ValidateWhitespace;
+use winnow::stream::Stream as _;
+
+pub(crate) mod array;
+#[cfg(feature = "debug")]
+pub(crate) mod debug;
+pub(crate) mod document;
+pub(crate) mod inline_table;
+pub(crate) mod key;
+pub(crate) mod value;
+
+pub(crate) fn parse_document<'s>(
+    source: toml_parser::Source<'s>,
+    errors: &mut dyn prelude::ErrorSink,
+) -> crate::Document<&'s str> {
+    let tokens = source.lex().into_vec();
+
+    let mut events = Vec::with_capacity(tokens.len());
+    let mut receiver = ValidateWhitespace::new(&mut events, source);
+    #[cfg(not(feature = "unbounded"))]
+    let mut receiver = RecursionGuard::new(&mut receiver, LIMIT);
+    #[cfg(not(feature = "unbounded"))]
+    let receiver = &mut receiver;
+    #[cfg(feature = "unbounded")]
+    let receiver = &mut receiver;
+    toml_parser::parser::parse_document(&tokens, receiver, errors);
+
+    let mut input = prelude::Input::new(&events);
+    let doc = document::document(&mut input, source, errors);
+    doc
+}
+
+pub(crate) fn parse_key(
+    source: toml_parser::Source<'_>,
+    errors: &mut dyn prelude::ErrorSink,
+) -> crate::Key {
+    let tokens = source.lex().into_vec();
+
+    let mut events = Vec::with_capacity(tokens.len());
+    let mut receiver = ValidateWhitespace::new(&mut events, source);
+    #[cfg(not(feature = "unbounded"))]
+    let mut receiver = RecursionGuard::new(&mut receiver, LIMIT);
+    #[cfg(not(feature = "unbounded"))]
+    let receiver = &mut receiver;
+    #[cfg(feature = "unbounded")]
+    let receiver = &mut receiver;
+    toml_parser::parser::parse_simple_key(&tokens, receiver, errors);
+
+    if let Some(event) = events
+        .iter()
+        .find(|e| e.kind() == toml_parser::parser::EventKind::SimpleKey)
+    {
+        let (raw, key) = key::on_simple_key(event, source, errors);
+        crate::Key::new(key).with_repr_unchecked(crate::Repr::new_unchecked(raw))
+    } else {
+        let key = source.input();
+        let raw = RawString::with_span(0..source.input().len());
+        crate::Key::new(key).with_repr_unchecked(crate::Repr::new_unchecked(raw))
+    }
+}
+
+pub(crate) fn parse_key_path(
+    source: toml_parser::Source<'_>,
+    errors: &mut dyn prelude::ErrorSink,
+) -> Vec<crate::Key> {
+    let tokens = source.lex().into_vec();
+
+    let mut events = Vec::with_capacity(tokens.len());
+    let mut receiver = ValidateWhitespace::new(&mut events, source);
+    #[cfg(not(feature = "unbounded"))]
+    let mut receiver = RecursionGuard::new(&mut receiver, LIMIT);
+    #[cfg(not(feature = "unbounded"))]
+    let receiver = &mut receiver;
+    #[cfg(feature = "unbounded")]
+    let receiver = &mut receiver;
+    toml_parser::parser::parse_key(&tokens, receiver, errors);
+
+    let mut input = prelude::Input::new(&events);
+    let mut prefix = None;
+    let mut path = None;
+    let mut key = None;
+    let mut suffix = None;
+    while let Some(event) = input.next_token() {
+        match event.kind() {
+            toml_parser::parser::EventKind::Whitespace => {
+                let raw = RawString::with_span(event.span().start()..event.span().end());
+                if prefix.is_none() {
+                    prefix = Some(raw);
+                } else if suffix.is_none() {
+                    suffix = Some(raw);
+                }
+            }
+            _ => {
+                let (local_path, local_key) = key::on_key(event, &mut input, source, errors);
+                path = Some(local_path);
+                key = local_key;
+            }
+        }
+    }
+    if let Some(mut key) = key {
+        if let Some(prefix) = prefix {
+            key.leaf_decor.set_prefix(prefix);
+        }
+        if let Some(suffix) = suffix {
+            key.leaf_decor.set_suffix(suffix);
+        }
+        let mut path = path.unwrap_or_default();
+        path.push(key);
+        path
+    } else {
+        Default::default()
+    }
+}
+
+pub(crate) fn parse_value(
+    source: toml_parser::Source<'_>,
+    errors: &mut dyn prelude::ErrorSink,
+) -> crate::Value {
+    let tokens = source.lex().into_vec();
+
+    let mut events = Vec::with_capacity(tokens.len());
+    let mut receiver = ValidateWhitespace::new(&mut events, source);
+    #[cfg(not(feature = "unbounded"))]
+    let mut receiver = RecursionGuard::new(&mut receiver, LIMIT);
+    #[cfg(not(feature = "unbounded"))]
+    let receiver = &mut receiver;
+    #[cfg(feature = "unbounded")]
+    let receiver = &mut receiver;
+    toml_parser::parser::parse_value(&tokens, receiver, errors);
+
+    let mut input = prelude::Input::new(&events);
+    let value = value::value(&mut input, source, errors);
+    value
+}
+
+#[cfg(not(feature = "unbounded"))]
+const LIMIT: u32 = 80;
+
+pub(crate) mod prelude {
+    pub(crate) use toml_parser::ErrorSink;
+    pub(crate) use toml_parser::ParseError;
+    pub(crate) use toml_parser::parser::EventKind;
+    pub(crate) use winnow::stream::Stream as _;
+
+    pub(crate) type Input<'i> = winnow::stream::TokenSlice<'i, toml_parser::parser::Event>;
+
+    #[cfg(feature = "debug")]
+    pub(crate) use super::debug::TraceScope;
+    #[cfg(feature = "debug")]
+    pub(crate) use super::debug::trace;
+}

vendor/toml_edit/src/parser/value.rs

@@ -0,0 +1,150 @@
+use crate::RawString;
+use crate::Value;
+use crate::parser::array::on_array;
+use crate::parser::inline_table::on_inline_table;
+use crate::parser::prelude::*;
+use crate::repr::{Formatted, Repr};
+
+/// ```abnf
+/// val = string / boolean / array / inline-table / date-time / float / integer
+/// ```
+pub(crate) fn value(
+    input: &mut Input<'_>,
+    source: toml_parser::Source<'_>,
+    errors: &mut dyn ErrorSink,
+) -> Value {
+    #[cfg(feature = "debug")]
+    let _scope = TraceScope::new("value");
+    if let Some(event) = input.next_token() {
+        match event.kind() {
+            EventKind::StdTableOpen
+            | EventKind::ArrayTableOpen
+            | EventKind::InlineTableClose
+            | EventKind::ArrayClose
+            | EventKind::ValueSep
+            | EventKind::Comment
+            | EventKind::Newline
+            | EventKind::Error
+            | EventKind::SimpleKey
+            | EventKind::KeySep
+            | EventKind::KeyValSep
+            | EventKind::StdTableClose
+            | EventKind::ArrayTableClose => {
+                #[cfg(feature = "debug")]
+                trace(
+                    &format!("unexpected {event:?}"),
+                    anstyle::AnsiColor::Red.on_default(),
+                );
+            }
+            EventKind::Whitespace => {
+                #[cfg(feature = "debug")]
+                trace(
+                    &format!("unexpected {event:?}"),
+                    anstyle::AnsiColor::Red.on_default(),
+                );
+            }
+            EventKind::InlineTableOpen => {
+                return on_inline_table(event, input, source, errors);
+            }
+            EventKind::ArrayOpen => {
+                return on_array(event, input, source, errors);
+            }
+            EventKind::Scalar => {
+                return on_scalar(event, source, errors);
+            }
+        }
+    }
+
+    let value_raw = RawString::with_span(0..0);
+    let mut f = Formatted::new(0);
+    f.set_repr_unchecked(Repr::new_unchecked(value_raw));
+    Value::Integer(f)
+}
+
+pub(crate) fn on_scalar(
+    event: &toml_parser::parser::Event,
+    source: toml_parser::Source<'_>,
+    errors: &mut dyn ErrorSink,
+) -> Value {
+    #[cfg(feature = "debug")]
+    let _scope = TraceScope::new("on_scalar");
+    let value_span = event.span();
+    let value_raw = RawString::with_span(value_span.start()..value_span.end());
+
+    let raw = source.get(event).unwrap();
+    let mut decoded = std::borrow::Cow::Borrowed("");
+    let kind = raw.decode_scalar(&mut decoded, errors);
+    match kind {
+        toml_parser::decoder::ScalarKind::String => {
+            let mut f = Formatted::new(decoded.into());
+            f.set_repr_unchecked(Repr::new_unchecked(value_raw));
+            Value::String(f)
+        }
+        toml_parser::decoder::ScalarKind::Boolean(value) => {
+            let mut f = Formatted::new(value);
+            f.set_repr_unchecked(Repr::new_unchecked(value_raw));
+            Value::Boolean(f)
+        }
+        toml_parser::decoder::ScalarKind::DateTime => {
+            let value = match decoded.parse::<toml_datetime::Datetime>() {
+                Ok(value) => value,
+                Err(err) => {
+                    errors.report_error(
+                        ParseError::new(err.to_string()).with_unexpected(event.span()),
+                    );
+                    toml_datetime::Datetime {
+                        date: None,
+                        time: None,
+                        offset: None,
+                    }
+                }
+            };
+            let mut f = Formatted::new(value);
+            f.set_repr_unchecked(Repr::new_unchecked(value_raw));
+            Value::Datetime(f)
+        }
+        toml_parser::decoder::ScalarKind::Float => {
+            let value = match decoded.parse::<f64>() {
+                Ok(value) => {
+                    if value.is_infinite()
+                        && !(decoded
+                            .strip_prefix(['+', '-'])
+                            .unwrap_or(&decoded)
+                            .chars()
+                            .all(|c| c.is_ascii_alphabetic()))
+                    {
+                        errors.report_error(
+                            ParseError::new("floating-point number overflowed")
+                                .with_unexpected(event.span()),
+                        );
+                    }
+                    value
+                }
+                Err(_) => {
+                    errors.report_error(
+                        ParseError::new(kind.invalid_description()).with_unexpected(event.span()),
+                    );
+                    f64::NAN
+                }
+            };
+            let mut f = Formatted::new(value);
+            f.set_repr_unchecked(Repr::new_unchecked(value_raw));
+            Value::Float(f)
+        }
+        toml_parser::decoder::ScalarKind::Integer(radix) => {
+            let value = match i64::from_str_radix(&decoded, radix.value()) {
+                Ok(value) => value,
+                Err(_) => {
+                    // Assuming the decoder fully validated it, leaving only overflow errors
+                    errors.report_error(
+                        ParseError::new("integer number overflowed").with_unexpected(event.span()),
+                    );
+                    i64::MAX
+                }
+            };
+            let mut f = Formatted::new(value);
+            f.set_repr_unchecked(Repr::new_unchecked(value_raw));
+            Value::Integer(f)
+        }
+    }
+}

vendor/toml_edit/src/raw_string.rs

@@ -0,0 +1,168 @@
+/// Opaque string storage for raw TOML; internal to `toml_edit`
+#[derive(PartialEq, Eq, Clone, Hash)]
+pub struct RawString(RawStringInner);
+
+#[derive(PartialEq, Eq, Clone, Hash)]
+enum RawStringInner {
+    Empty,
+    Explicit(String),
+    Spanned(std::ops::Range<usize>),
+}
+
+impl RawString {
+    pub(crate) fn with_span(span: std::ops::Range<usize>) -> Self {
+        Self(RawStringInner::Spanned(span))
+    }
+
+    /// Access the underlying string
+    ///
+    /// This generally requires a [`DocumentMut`][crate::DocumentMut].
+    pub fn as_str(&self) -> Option<&str> {
+        match &self.0 {
+            RawStringInner::Empty => Some(""),
+            RawStringInner::Explicit(s) => Some(s.as_str()),
+            RawStringInner::Spanned(_) => None,
+        }
+    }
+
+    /// The location within the original document
+    ///
+    /// This generally requires a [`Document`][crate::Document].
+    pub fn span(&self) -> Option<std::ops::Range<usize>> {
+        match &self.0 {
+            RawStringInner::Empty => None,
+            RawStringInner::Explicit(_) => None,
+            RawStringInner::Spanned(span) => Some(span.clone()),
+        }
+    }
+
+    pub(crate) fn to_str<'s>(&'s self, input: &'s str) -> &'s str {
+        match &self.0 {
+            RawStringInner::Empty => "",
+            RawStringInner::Explicit(s) => s.as_str(),
+            RawStringInner::Spanned(span) => input
+                .get(span.clone())
+                .unwrap_or_else(|| panic!("span {span:?} should be in input:\n```\n{input}\n```")),
+        }
+    }
+
+    pub(crate) fn to_str_with_default<'s>(
+        &'s self,
+        input: Option<&'s str>,
+        default: &'s str,
+    ) -> &'s str {
+        match &self.0 {
+            RawStringInner::Empty => "",
+            RawStringInner::Explicit(s) => s.as_str(),
+            RawStringInner::Spanned(span) => {
+                if let Some(input) = input {
+                    input.get(span.clone()).unwrap_or_else(|| {
+                        panic!("span {span:?} should be in input:\n```\n{input}\n```")
+                    })
+                } else {
+                    default
+                }
+            }
+        }
+    }
+
+    pub(crate) fn despan(&mut self, input: &str) {
+        match &self.0 {
+            RawStringInner::Empty => {}
+            RawStringInner::Explicit(_) => {}
+            RawStringInner::Spanned(span) => {
+                if span.start == span.end {
+                    *self = Self(RawStringInner::Empty);
+                } else {
+                    *self = Self::from(input.get(span.clone()).unwrap_or_else(|| {
+                        panic!("span {span:?} should be in input:\n```\n{input}\n```")
+                    }));
+                }
+            }
+        }
+    }
+
+    #[cfg(feature = "display")]
+    pub(crate) fn encode(&self, buf: &mut dyn std::fmt::Write, input: &str) -> std::fmt::Result {
+        let raw = self.to_str(input);
+        for part in raw.split('\r') {
+            write!(buf, "{part}")?;
+        }
+        Ok(())
+    }
+
+    #[cfg(feature = "display")]
+    pub(crate) fn encode_with_default(
+        &self,
+        buf: &mut dyn std::fmt::Write,
+        input: Option<&str>,
+        default: &str,
+    ) -> std::fmt::Result {
+        let raw = self.to_str_with_default(input, default);
+        for part in raw.split('\r') {
+            write!(buf, "{part}")?;
+        }
+        Ok(())
+    }
+}
+
+impl Default for RawString {
+    fn default() -> Self {
+        Self(RawStringInner::Empty)
+    }
+}
+
+impl std::fmt::Debug for RawString {
+    #[inline]
+    fn fmt(&self, formatter: &mut std::fmt::Formatter<'_>) -> Result<(), std::fmt::Error> {
+        match &self.0 {
+            RawStringInner::Empty => write!(formatter, "empty"),
+            RawStringInner::Explicit(s) => write!(formatter, "{s:?}"),
+            RawStringInner::Spanned(s) => write!(formatter, "{s:?}"),
+        }
+    }
+}
+
+impl From<&str> for RawString {
+    #[inline]
+    fn from(s: &str) -> Self {
+        if s.is_empty() {
+            Self(RawStringInner::Empty)
+        } else {
+            String::from(s).into()
+        }
+    }
+}
+
+impl From<String> for RawString {
+    #[inline]
+    fn from(s: String) -> Self {
+        if s.is_empty() {
+            Self(RawStringInner::Empty)
+        } else {
+            Self(RawStringInner::Explicit(s))
+        }
+    }
+}
+
+impl From<&String> for RawString {
+    #[inline]
+    fn from(s: &String) -> Self {
+        if s.is_empty() {
+            Self(RawStringInner::Empty)
+        } else {
+            String::from(s).into()
+        }
+    }
+}
+
+impl From<Box<str>> for RawString {
+    #[inline]
+    fn from(s: Box<str>) -> Self {
+        if s.is_empty() {
+            Self(RawStringInner::Empty)
+        } else {
+            String::from(s).into()
+        }
+    }
+}

vendor/toml_edit/src/repr.rs

@@ -0,0 +1,281 @@
+use std::borrow::Cow;
+
+use crate::RawString;
+
+/// A scalar TOML [`Value`][crate::Value]'s logical value and its representation in a `&str`
+///
+/// This includes the surrounding whitespace and comments.
+#[derive(Eq, PartialEq, Clone, Hash)]
+pub struct Formatted<T> {
+    value: T,
+    repr: Option<Repr>,
+    decor: Decor,
+}
+
+impl<T> Formatted<T>
+where
+    T: ValueRepr,
+{
+    /// Default-formatted value
+    pub fn new(value: T) -> Self {
+        Self {
+            value,
+            repr: None,
+            decor: Default::default(),
+        }
+    }
+
+    pub(crate) fn set_repr_unchecked(&mut self, repr: Repr) {
+        self.repr = Some(repr);
+    }
+
+    /// The wrapped value
+    pub fn value(&self) -> &T {
+        &self.value
+    }
+
+    /// The wrapped value
+    pub fn into_value(self) -> T {
+        self.value
+    }
+
+    /// Returns the raw representation, if available.
+    pub fn as_repr(&self) -> Option<&Repr> {
+        self.repr.as_ref()
+    }
+
+    /// Returns the default raw representation.
+    #[cfg(feature = "display")]
+    pub fn default_repr(&self) -> Repr {
+        self.value.to_repr()
+    }
+
+    /// Returns a raw representation.
+    #[cfg(feature = "display")]
+    pub fn display_repr(&self) -> Cow<'_, str> {
+        self.as_repr()
+            .and_then(|r| r.as_raw().as_str())
+            .map(Cow::Borrowed)
+            .unwrap_or_else(|| {
+                Cow::Owned(self.default_repr().as_raw().as_str().unwrap().to_owned())
+            })
+    }
+
+    /// The location within the original document
+    ///
+    /// This generally requires a [`Document`][crate::Document].
+    pub fn span(&self) -> Option<std::ops::Range<usize>> {
+        self.repr.as_ref().and_then(|r| r.span())
+    }
+
+    pub(crate) fn despan(&mut self, input: &str) {
+        self.decor.despan(input);
+        if let Some(repr) = &mut self.repr {
+            repr.despan(input);
+        }
+    }
+
+    /// Returns the surrounding whitespace
+    pub fn decor_mut(&mut self) -> &mut Decor {
+        &mut self.decor
+    }
+
+    /// Returns the surrounding whitespace
+    pub fn decor(&self) -> &Decor {
+        &self.decor
+    }
+
+    /// Auto formats the value.
+    pub fn fmt(&mut self) {
+        self.repr = None;
+    }
+}
+
+impl<T> std::fmt::Debug for Formatted<T>
+where
+    T: std::fmt::Debug,
+{
+    #[inline]
+    fn fmt(&self, formatter: &mut std::fmt::Formatter<'_>) -> Result<(), std::fmt::Error> {
+        let mut d = formatter.debug_struct("Formatted");
+        d.field("value", &self.value);
+        match &self.repr {
+            Some(r) => d.field("repr", r),
+            None => d.field("repr", &"default"),
+        };
+        d.field("decor", &self.decor);
+        d.finish()
+    }
+}
+
+#[cfg(feature = "display")]
+impl<T> std::fmt::Display for Formatted<T>
+where
+    T: ValueRepr,
+{
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        crate::encode::encode_formatted(self, f, None, ("", ""))
+    }
+}
+
+pub trait ValueRepr: crate::private::Sealed {
+    /// The TOML representation of the value
+    #[cfg(feature = "display")]
+    fn to_repr(&self) -> Repr;
+}
+
+#[cfg(not(feature = "display"))]
+mod inner {
+    use super::ValueRepr;
+
+    impl ValueRepr for String {}
+    impl ValueRepr for i64 {}
+    impl ValueRepr for f64 {}
+    impl ValueRepr for bool {}
+    impl ValueRepr for toml_datetime::Datetime {}
+}
+
+/// A TOML [`Value`][crate::Value] encoded as a `&str`
+#[derive(Eq, PartialEq, Clone, Hash)]
+pub struct Repr {
+    raw_value: RawString,
+}
+
+impl Repr {
+    pub(crate) fn new_unchecked(raw: impl Into<RawString>) -> Self {
+        Self {
+            raw_value: raw.into(),
+        }
+    }
+
+    /// Access the underlying value
+    pub fn as_raw(&self) -> &RawString {
+        &self.raw_value
+    }
+
+    /// The location within the original document
+    ///
+    /// This generally requires a [`Document`][crate::Document].
+    pub fn span(&self) -> Option<std::ops::Range<usize>> {
+        self.raw_value.span()
+    }
+
+    pub(crate) fn despan(&mut self, input: &str) {
+        self.raw_value.despan(input);
+    }
+
+    #[cfg(feature = "display")]
+    pub(crate) fn encode(&self, buf: &mut dyn std::fmt::Write, input: &str) -> std::fmt::Result {
+        self.as_raw().encode(buf, input)
+    }
+}
+
+impl std::fmt::Debug for Repr {
+    #[inline]
+    fn fmt(&self, formatter: &mut std::fmt::Formatter<'_>) -> Result<(), std::fmt::Error> {
+        self.raw_value.fmt(formatter)
+    }
+}
+
+/// A prefix and suffix,
+///
+/// Including comments, whitespaces and newlines.
+#[derive(Eq, PartialEq, Clone, Default, Hash)]
+pub struct Decor {
+    prefix: Option<RawString>,
+    suffix: Option<RawString>,
+}
+
+impl Decor {
+    pub(crate) const EMPTY: Self = Self {
+        prefix: None,
+        suffix: None,
+    };
+
+    /// Creates a new decor from the given prefix and suffix.
+    pub fn new(prefix: impl Into<RawString>, suffix: impl Into<RawString>) -> Self {
+        Self {
+            prefix: Some(prefix.into()),
+            suffix: Some(suffix.into()),
+        }
+    }
+
+    /// Go back to default decor
+    pub fn clear(&mut self) {
+        self.prefix = None;
+        self.suffix = None;
+    }
+
+    /// Get the prefix.
+    pub fn prefix(&self) -> Option<&RawString> {
+        self.prefix.as_ref()
+    }
+
+    #[cfg(feature = "display")]
+    pub(crate) fn prefix_encode(
+        &self,
+        buf: &mut dyn std::fmt::Write,
+        input: Option<&str>,
+        default: &str,
+    ) -> std::fmt::Result {
+        if let Some(prefix) = self.prefix() {
+            prefix.encode_with_default(buf, input, default)
+        } else {
+            write!(buf, "{default}")
+        }
+    }
+
+    /// Set the prefix.
+    pub fn set_prefix(&mut self, prefix: impl Into<RawString>) {
+        self.prefix = Some(prefix.into());
+    }
+
+    /// Get the suffix.
+    pub fn suffix(&self) -> Option<&RawString> {
+        self.suffix.as_ref()
+    }
+
+    #[cfg(feature = "display")]
+    pub(crate) fn suffix_encode(
+        &self,
+        buf: &mut dyn std::fmt::Write,
+        input: Option<&str>,
+        default: &str,
+    ) -> std::fmt::Result {
+        if let Some(suffix) = self.suffix() {
+            suffix.encode_with_default(buf, input, default)
+        } else {
+            write!(buf, "{default}")
+        }
+    }
+
+    /// Set the suffix.
+    pub fn set_suffix(&mut self, suffix: impl Into<RawString>) {
+        self.suffix = Some(suffix.into());
+    }
+
+    pub(crate) fn despan(&mut self, input: &str) {
+        if let Some(prefix) = &mut self.prefix {
+            prefix.despan(input);
+        }
+        if let Some(suffix) = &mut self.suffix {
+            suffix.despan(input);
+        }
+    }
+}
+
+impl std::fmt::Debug for Decor {
+    #[inline]
+    fn fmt(&self, formatter: &mut std::fmt::Formatter<'_>) -> Result<(), std::fmt::Error> {
+        let mut d = formatter.debug_struct("Decor");
+        match &self.prefix {
+            Some(r) => d.field("prefix", r),
+            None => d.field("prefix", &"default"),
+        };
+        match &self.suffix {
+            Some(r) => d.field("suffix", r),
+            None => d.field("suffix", &"default"),
+        };
+        d.finish()
+    }
+}

vendor/toml_edit/src/ser/array.rs

@@ -0,0 +1,102 @@
+use super::Error;
+
+#[doc(hidden)]
+pub struct SerializeValueArray {
+    values: Vec<crate::Item>,
+}
+
+impl SerializeValueArray {
+    pub(crate) fn seq(len: Option<usize>) -> Self {
+        let mut values = Vec::new();
+        if let Some(len) = len {
+            values.reserve(len);
+        }
+        Self { values }
+    }
+}
+
+impl serde_core::ser::SerializeSeq for SerializeValueArray {
+    type Ok = crate::Value;
+    type Error = Error;
+
+    fn serialize_element<T>(&mut self, value: &T) -> Result<(), Error>
+    where
+        T: serde_core::ser::Serialize + ?Sized,
+    {
+        let value = value.serialize(super::ValueSerializer {})?;
+        self.values.push(crate::Item::Value(value));
+        Ok(())
+    }
+
+    fn end(self) -> Result<Self::Ok, Self::Error> {
+        Ok(crate::Value::Array(crate::Array::with_vec(self.values)))
+    }
+}
+
+impl serde_core::ser::SerializeTuple for SerializeValueArray {
+    type Ok = crate::Value;
+    type Error = Error;
+
+    fn serialize_element<T>(&mut self, value: &T) -> Result<(), Error>
+    where
+        T: serde_core::ser::Serialize + ?Sized,
+    {
+        serde_core::ser::SerializeSeq::serialize_element(self, value)
+    }
+
+    fn end(self) -> Result<Self::Ok, Self::Error> {
+        serde_core::ser::SerializeSeq::end(self)
+    }
+}
+
+impl serde_core::ser::SerializeTupleStruct for SerializeValueArray {
+    type Ok = crate::Value;
+    type Error = Error;
+
+    fn serialize_field<T>(&mut self, value: &T) -> Result<(), Error>
+    where
+        T: serde_core::ser::Serialize + ?Sized,
+    {
+        serde_core::ser::SerializeSeq::serialize_element(self, value)
+    }
+
+    fn end(self) -> Result<Self::Ok, Self::Error> {
+        serde_core::ser::SerializeSeq::end(self)
+    }
+}
+
+pub struct SerializeTupleVariant {
+    variant: &'static str,
+    inner: SerializeValueArray,
+}
+
+impl SerializeTupleVariant {
+    pub(crate) fn tuple(variant: &'static str, len: usize) -> Self {
+        Self {
+            variant,
+            inner: SerializeValueArray::seq(Some(len)),
+        }
+    }
+}
+
+impl serde_core::ser::SerializeTupleVariant for SerializeTupleVariant {
+    type Ok = crate::Value;
+    type Error = Error;
+
+    fn serialize_field<T>(&mut self, value: &T) -> Result<(), Error>
+    where
+        T: serde_core::ser::Serialize + ?Sized,
+    {
+        serde_core::ser::SerializeSeq::serialize_element(&mut self.inner, value)
+    }
+
+    fn end(self) -> Result<Self::Ok, Self::Error> {
+        let inner = serde_core::ser::SerializeSeq::end(self.inner)?;
+        let mut items = crate::table::KeyValuePairs::new();
+        let value = crate::Item::Value(inner);
+        items.insert(crate::Key::new(self.variant), value);
+        Ok(crate::Value::InlineTable(crate::InlineTable::with_pairs(
+            items,
+        )))
+    }
+}

vendor/toml_edit/src/ser/error.rs

@@ -0,0 +1,84 @@
+/// Errors that can occur when deserializing a type.
+#[derive(Debug, Clone, PartialEq, Eq, Hash)]
+#[non_exhaustive]
+pub enum Error {
+    /// Type could not be serialized to TOML
+    UnsupportedType(Option<&'static str>),
+    /// Value was out of range for the given type
+    OutOfRange(Option<&'static str>),
+    /// `None` could not be serialized to TOML
+    UnsupportedNone,
+    /// Key was not convertible to `String` for serializing to TOML
+    KeyNotString,
+    /// A serialized date was invalid
+    DateInvalid,
+    /// Other serialization error
+    Custom(String),
+}
+
+impl Error {
+    pub(crate) fn custom<T>(msg: T) -> Self
+    where
+        T: std::fmt::Display,
+    {
+        Self::Custom(msg.to_string())
+    }
+
+    pub(crate) fn unsupported_type(t: Option<&'static str>) -> Self {
+        Self::UnsupportedType(t)
+    }
+
+    pub(crate) fn out_of_range(t: Option<&'static str>) -> Self {
+        Self::OutOfRange(t)
+    }
+
+    pub(crate) fn unsupported_none() -> Self {
+        Self::UnsupportedNone
+    }
+
+    pub(crate) fn key_not_string() -> Self {
+        Self::KeyNotString
+    }
+
+    pub(crate) fn date_invalid() -> Self {
+        Self::DateInvalid
+    }
+}
+
+impl serde_core::ser::Error for Error {
+    fn custom<T>(msg: T) -> Self
+    where
+        T: std::fmt::Display,
+    {
+        Self::custom(msg)
+    }
+}
+
+impl std::fmt::Display for Error {
+    fn fmt(&self, formatter: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match self {
+            Self::UnsupportedType(Some(t)) => write!(formatter, "unsupported {t} type"),
+            Self::UnsupportedType(None) => write!(formatter, "unsupported rust type"),
+            Self::OutOfRange(Some(t)) => write!(formatter, "out-of-range value for {t} type"),
+            Self::OutOfRange(None) => write!(formatter, "out-of-range value"),
+            Self::UnsupportedNone => "unsupported None value".fmt(formatter),
+            Self::KeyNotString => "map key was not a string".fmt(formatter),
+            Self::DateInvalid => "a serialized date was invalid".fmt(formatter),
+            Self::Custom(s) => s.fmt(formatter),
+        }
+    }
+}
+
+impl From<crate::TomlError> for Error {
+    fn from(e: crate::TomlError) -> Self {
+        Self::custom(e)
+    }
+}
+
+impl From<Error> for crate::TomlError {
+    fn from(e: Error) -> Self {
+        Self::custom(e.to_string(), None)
+    }
+}
+
+impl std::error::Error for Error {}

vendor/toml_edit/src/ser/key.rs

@@ -0,0 +1,181 @@
+use crate::Key;
+
+use super::Error;
+
+pub(crate) struct KeySerializer;
+
+impl serde_core::ser::Serializer for KeySerializer {
+    type Ok = Key;
+    type Error = Error;
+    type SerializeSeq = serde_core::ser::Impossible<Self::Ok, Error>;
+    type SerializeTuple = serde_core::ser::Impossible<Self::Ok, Error>;
+    type SerializeTupleStruct = serde_core::ser::Impossible<Self::Ok, Error>;
+    type SerializeTupleVariant = serde_core::ser::Impossible<Self::Ok, Error>;
+    type SerializeMap = serde_core::ser::Impossible<Self::Ok, Error>;
+    type SerializeStruct = serde_core::ser::Impossible<Self::Ok, Error>;
+    type SerializeStructVariant = serde_core::ser::Impossible<Self::Ok, Error>;
+
+    fn serialize_bool(self, v: bool) -> Result<Self::Ok, Self::Error> {
+        Ok(Key::new(v.to_string()))
+    }
+
+    fn serialize_i8(self, v: i8) -> Result<Self::Ok, Self::Error> {
+        Ok(Key::new(v.to_string()))
+    }
+
+    fn serialize_i16(self, v: i16) -> Result<Self::Ok, Self::Error> {
+        Ok(Key::new(v.to_string()))
+    }
+
+    fn serialize_i32(self, v: i32) -> Result<Self::Ok, Self::Error> {
+        Ok(Key::new(v.to_string()))
+    }
+
+    fn serialize_i64(self, v: i64) -> Result<Self::Ok, Self::Error> {
+        Ok(Key::new(v.to_string()))
+    }
+
+    fn serialize_i128(self, v: i128) -> Result<Self::Ok, Self::Error> {
+        Ok(Key::new(v.to_string()))
+    }
+
+    fn serialize_u8(self, v: u8) -> Result<Self::Ok, Self::Error> {
+        Ok(Key::new(v.to_string()))
+    }
+
+    fn serialize_u16(self, v: u16) -> Result<Self::Ok, Self::Error> {
+        Ok(Key::new(v.to_string()))
+    }
+
+    fn serialize_u32(self, v: u32) -> Result<Self::Ok, Self::Error> {
+        Ok(Key::new(v.to_string()))
+    }
+
+    fn serialize_u64(self, v: u64) -> Result<Self::Ok, Self::Error> {
+        Ok(Key::new(v.to_string()))
+    }
+
+    fn serialize_u128(self, v: u128) -> Result<Self::Ok, Self::Error> {
+        Ok(Key::new(v.to_string()))
+    }
+
+    fn serialize_f32(self, _v: f32) -> Result<Self::Ok, Self::Error> {
+        Err(Error::key_not_string())
+    }
+
+    fn serialize_f64(self, _v: f64) -> Result<Self::Ok, Self::Error> {
+        Err(Error::key_not_string())
+    }
+
+    fn serialize_char(self, v: char) -> Result<Self::Ok, Self::Error> {
+        Ok(Key::new(v.to_string()))
+    }
+
+    fn serialize_str(self, value: &str) -> Result<Self::Ok, Self::Error> {
+        Ok(Key::new(value))
+    }
+
+    fn serialize_bytes(self, _value: &[u8]) -> Result<Self::Ok, Self::Error> {
+        Err(Error::key_not_string())
+    }
+
+    fn serialize_none(self) -> Result<Self::Ok, Self::Error> {
+        Err(Error::key_not_string())
+    }
+
+    fn serialize_some<T>(self, _value: &T) -> Result<Self::Ok, Self::Error>
+    where
+        T: serde_core::ser::Serialize + ?Sized,
+    {
+        Err(Error::key_not_string())
+    }
+
+    fn serialize_unit(self) -> Result<Self::Ok, Self::Error> {
+        Err(Error::key_not_string())
+    }
+
+    fn serialize_unit_struct(self, _name: &'static str) -> Result<Self::Ok, Self::Error> {
+        Err(Error::key_not_string())
+    }
+
+    fn serialize_unit_variant(
+        self,
+        _name: &'static str,
+        _variant_index: u32,
+        variant: &'static str,
+    ) -> Result<Self::Ok, Self::Error> {
+        Ok(variant.into())
+    }
+
+    fn serialize_newtype_struct<T>(
+        self,
+        _name: &'static str,
+        value: &T,
+    ) -> Result<Self::Ok, Self::Error>
+    where
+        T: serde_core::ser::Serialize + ?Sized,
+    {
+        value.serialize(self)
+    }
+
+    fn serialize_newtype_variant<T>(
+        self,
+        _name: &'static str,
+        _variant_index: u32,
+        _variant: &'static str,
+        _value: &T,
+    ) -> Result<Self::Ok, Self::Error>
+    where
+        T: serde_core::ser::Serialize + ?Sized,
+    {
+        Err(Error::key_not_string())
+    }
+
+    fn serialize_seq(self, _len: Option<usize>) -> Result<Self::SerializeSeq, Self::Error> {
+        Err(Error::key_not_string())
+    }
+
+    fn serialize_tuple(self, _len: usize) -> Result<Self::SerializeTuple, Self::Error> {
+        Err(Error::key_not_string())
+    }
+
+    fn serialize_tuple_struct(
+        self,
+        _name: &'static str,
+        _len: usize,
+    ) -> Result<Self::SerializeTupleStruct, Self::Error> {
+        Err(Error::key_not_string())
+    }
+
+    fn serialize_tuple_variant(
+        self,
+        _name: &'static str,
+        _variant_index: u32,
+        _variant: &'static str,
+        _len: usize,
+    ) -> Result<Self::SerializeTupleVariant, Self::Error> {
+        Err(Error::key_not_string())
+    }
+
+    fn serialize_map(self, _len: Option<usize>) -> Result<Self::SerializeMap, Self::Error> {
+        Err(Error::key_not_string())
+    }
+
+    fn serialize_struct(
+        self,
+        _name: &'static str,
+        _len: usize,
+    ) -> Result<Self::SerializeStruct, Self::Error> {
+        Err(Error::key_not_string())
+    }
+
+    fn serialize_struct_variant(
+        self,
+        _name: &'static str,
+        _variant_index: u32,
+        _variant: &'static str,
+        _len: usize,
+    ) -> Result<Self::SerializeStructVariant, Self::Error> {
+        Err(Error::key_not_string())
+    }
+}

vendor/toml_edit/src/ser/map.rs

@@ -0,0 +1,445 @@
+use super::Error;
+use super::array::SerializeTupleVariant;
+use super::array::SerializeValueArray;
+use super::key::KeySerializer;
+use super::value::ValueSerializer;
+
+#[doc(hidden)]
+#[allow(clippy::large_enum_variant)]
+pub enum SerializeMap {
+    Datetime(SerializeDatetime),
+    Table(SerializeInlineTable),
+}
+
+impl SerializeMap {
+    pub(crate) fn map(len: Option<usize>) -> Self {
+        Self::Table(SerializeInlineTable::map(len))
+    }
+
+    pub(crate) fn struct_(name: &'static str, len: Option<usize>) -> Self {
+        if toml_datetime::ser::is_datetime(name) {
+            Self::Datetime(SerializeDatetime::new())
+        } else {
+            Self::map(len)
+        }
+    }
+}
+
+impl serde_core::ser::SerializeMap for SerializeMap {
+    type Ok = crate::Value;
+    type Error = Error;
+
+    fn serialize_key<T>(&mut self, input: &T) -> Result<(), Self::Error>
+    where
+        T: serde_core::ser::Serialize + ?Sized,
+    {
+        match self {
+            Self::Datetime(s) => s.serialize_key(input),
+            Self::Table(s) => s.serialize_key(input),
+        }
+    }
+
+    fn serialize_value<T>(&mut self, value: &T) -> Result<(), Self::Error>
+    where
+        T: serde_core::ser::Serialize + ?Sized,
+    {
+        match self {
+            Self::Datetime(s) => s.serialize_value(value),
+            Self::Table(s) => s.serialize_value(value),
+        }
+    }
+
+    fn end(self) -> Result<Self::Ok, Self::Error> {
+        match self {
+            Self::Datetime(s) => s.end().map(|items| items.into()),
+            Self::Table(s) => s.end().map(|items| items.into()),
+        }
+    }
+}
+
+impl serde_core::ser::SerializeStruct for SerializeMap {
+    type Ok = crate::Value;
+    type Error = Error;
+
+    fn serialize_field<T>(&mut self, key: &'static str, value: &T) -> Result<(), Self::Error>
+    where
+        T: serde_core::ser::Serialize + ?Sized,
+    {
+        match self {
+            Self::Datetime(s) => s.serialize_field(key, value),
+            Self::Table(s) => s.serialize_field(key, value),
+        }
+    }
+
+    fn end(self) -> Result<Self::Ok, Self::Error> {
+        match self {
+            Self::Datetime(s) => s.end().map(|items| items.into()),
+            Self::Table(s) => s.end().map(|items| items.into()),
+        }
+    }
+}
+
+#[doc(hidden)]
+pub struct SerializeDatetime {
+    inner: toml_datetime::ser::DatetimeSerializer,
+}
+
+impl SerializeDatetime {
+    pub(crate) fn new() -> Self {
+        Self {
+            inner: toml_datetime::ser::DatetimeSerializer::new(),
+        }
+    }
+}
+
+impl serde_core::ser::SerializeMap for SerializeDatetime {
+    type Ok = crate::Datetime;
+    type Error = Error;
+
+    fn serialize_key<T>(&mut self, _input: &T) -> Result<(), Self::Error>
+    where
+        T: serde_core::ser::Serialize + ?Sized,
+    {
+        unreachable!("datetimes should only be serialized as structs, not maps")
+    }
+
+    fn serialize_value<T>(&mut self, _value: &T) -> Result<(), Self::Error>
+    where
+        T: serde_core::ser::Serialize + ?Sized,
+    {
+        unreachable!("datetimes should only be serialized as structs, not maps")
+    }
+
+    fn end(self) -> Result<Self::Ok, Self::Error> {
+        unreachable!("datetimes should only be serialized as structs, not maps")
+    }
+}
+
+impl serde_core::ser::SerializeStruct for SerializeDatetime {
+    type Ok = crate::Datetime;
+    type Error = Error;
+
+    fn serialize_field<T>(&mut self, key: &'static str, value: &T) -> Result<(), Self::Error>
+    where
+        T: serde_core::ser::Serialize + ?Sized,
+    {
+        self.inner.serialize_field(key, value).map_err(dt_err)?;
+
+        Ok(())
+    }
+
+    fn end(self) -> Result<Self::Ok, Self::Error> {
+        let value = self.inner.end().map_err(dt_err)?;
+        Ok(value)
+    }
+}
+
+fn dt_err(err: toml_datetime::ser::SerializerError) -> Error {
+    match err {
+        toml_datetime::ser::SerializerError::InvalidFormat(err) => Error::custom(err),
+        _ => Error::date_invalid(),
+    }
+}
+
+#[doc(hidden)]
+pub struct SerializeInlineTable {
+    items: crate::table::KeyValuePairs,
+    key: Option<crate::Key>,
+}
+
+impl SerializeInlineTable {
+    pub(crate) fn map(len: Option<usize>) -> Self {
+        let mut items: crate::table::KeyValuePairs = Default::default();
+        let key = Default::default();
+        if let Some(len) = len {
+            items.reserve(len);
+        }
+        Self { items, key }
+    }
+}
+
+impl serde_core::ser::SerializeMap for SerializeInlineTable {
+    type Ok = crate::InlineTable;
+    type Error = Error;
+
+    fn serialize_key<T>(&mut self, input: &T) -> Result<(), Self::Error>
+    where
+        T: serde_core::ser::Serialize + ?Sized,
+    {
+        self.key = Some(input.serialize(KeySerializer)?);
+        Ok(())
+    }
+
+    fn serialize_value<T>(&mut self, value: &T) -> Result<(), Self::Error>
+    where
+        T: serde_core::ser::Serialize + ?Sized,
+    {
+        let mut is_none = false;
+        let value_serializer = MapValueSerializer::new(&mut is_none);
+        let res = value.serialize(value_serializer);
+        match res {
+            Ok(item) => {
+                let key = self.key.take().unwrap();
+                let item = crate::Item::Value(item);
+                self.items.insert(key, item);
+            }
+            Err(e) => {
+                if !(e == Error::unsupported_none() && is_none) {
+                    return Err(e);
+                }
+            }
+        }
+        Ok(())
+    }
+
+    fn end(self) -> Result<Self::Ok, Self::Error> {
+        Ok(crate::InlineTable::with_pairs(self.items))
+    }
+}
+
+impl serde_core::ser::SerializeStruct for SerializeInlineTable {
+    type Ok = crate::InlineTable;
+    type Error = Error;
+
+    fn serialize_field<T>(&mut self, key: &'static str, value: &T) -> Result<(), Self::Error>
+    where
+        T: serde_core::ser::Serialize + ?Sized,
+    {
+        let mut is_none = false;
+        let value_serializer = MapValueSerializer::new(&mut is_none);
+        let res = value.serialize(value_serializer);
+        match res {
+            Ok(item) => {
+                let item = crate::Item::Value(item);
+                self.items.insert(crate::Key::new(key), item);
+            }
+            Err(e) => {
+                if !(e == Error::unsupported_none() && is_none) {
+                    return Err(e);
+                }
+            }
+        };
+        Ok(())
+    }
+
+    fn end(self) -> Result<Self::Ok, Self::Error> {
+        Ok(crate::InlineTable::with_pairs(self.items))
+    }
+}
+
+struct MapValueSerializer<'d> {
+    is_none: &'d mut bool,
+}
+
+impl<'d> MapValueSerializer<'d> {
+    fn new(is_none: &'d mut bool) -> Self {
+        Self { is_none }
+    }
+}
+
+impl serde_core::ser::Serializer for MapValueSerializer<'_> {
+    type Ok = crate::Value;
+    type Error = Error;
+    type SerializeSeq = SerializeValueArray;
+    type SerializeTuple = SerializeValueArray;
+    type SerializeTupleStruct = SerializeValueArray;
+    type SerializeTupleVariant = SerializeTupleVariant;
+    type SerializeMap = SerializeMap;
+    type SerializeStruct = SerializeMap;
+    type SerializeStructVariant = SerializeStructVariant;
+
+    fn serialize_bool(self, v: bool) -> Result<Self::Ok, Self::Error> {
+        ValueSerializer::new().serialize_bool(v)
+    }
+
+    fn serialize_i8(self, v: i8) -> Result<Self::Ok, Self::Error> {
+        ValueSerializer::new().serialize_i8(v)
+    }
+
+    fn serialize_i16(self, v: i16) -> Result<Self::Ok, Self::Error> {
+        ValueSerializer::new().serialize_i16(v)
+    }
+
+    fn serialize_i32(self, v: i32) -> Result<Self::Ok, Self::Error> {
+        ValueSerializer::new().serialize_i32(v)
+    }
+
+    fn serialize_i64(self, v: i64) -> Result<Self::Ok, Self::Error> {
+        ValueSerializer::new().serialize_i64(v)
+    }
+
+    fn serialize_u8(self, v: u8) -> Result<Self::Ok, Self::Error> {
+        ValueSerializer::new().serialize_u8(v)
+    }
+
+    fn serialize_u16(self, v: u16) -> Result<Self::Ok, Self::Error> {
+        ValueSerializer::new().serialize_u16(v)
+    }
+
+    fn serialize_u32(self, v: u32) -> Result<Self::Ok, Self::Error> {
+        ValueSerializer::new().serialize_u32(v)
+    }
+
+    fn serialize_u64(self, v: u64) -> Result<Self::Ok, Self::Error> {
+        ValueSerializer::new().serialize_u64(v)
+    }
+
+    fn serialize_f32(self, v: f32) -> Result<Self::Ok, Self::Error> {
+        ValueSerializer::new().serialize_f32(v)
+    }
+
+    fn serialize_f64(self, v: f64) -> Result<Self::Ok, Self::Error> {
+        ValueSerializer::new().serialize_f64(v)
+    }
+
+    fn serialize_char(self, v: char) -> Result<Self::Ok, Self::Error> {
+        ValueSerializer::new().serialize_char(v)
+    }
+
+    fn serialize_str(self, v: &str) -> Result<Self::Ok, Self::Error> {
+        ValueSerializer::new().serialize_str(v)
+    }
+
+    fn serialize_bytes(self, value: &[u8]) -> Result<Self::Ok, Self::Error> {
+        ValueSerializer::new().serialize_bytes(value)
+    }
+
+    fn serialize_none(self) -> Result<Self::Ok, Self::Error> {
+        *self.is_none = true;
+        Err(Error::unsupported_none())
+    }
+
+    fn serialize_some<T>(self, value: &T) -> Result<Self::Ok, Self::Error>
+    where
+        T: serde_core::ser::Serialize + ?Sized,
+    {
+        ValueSerializer::new().serialize_some(value)
+    }
+
+    fn serialize_unit(self) -> Result<Self::Ok, Self::Error> {
+        ValueSerializer::new().serialize_unit()
+    }
+
+    fn serialize_unit_struct(self, name: &'static str) -> Result<Self::Ok, Self::Error> {
+        ValueSerializer::new().serialize_unit_struct(name)
+    }
+
+    fn serialize_unit_variant(
+        self,
+        name: &'static str,
+        variant_index: u32,
+        variant: &'static str,
+    ) -> Result<Self::Ok, Self::Error> {
+        ValueSerializer::new().serialize_unit_variant(name, variant_index, variant)
+    }
+
+    fn serialize_newtype_struct<T>(
+        self,
+        _name: &'static str,
+        value: &T,
+    ) -> Result<Self::Ok, Self::Error>
+    where
+        T: serde_core::ser::Serialize + ?Sized,
+    {
+        value.serialize(self)
+    }
+
+    fn serialize_newtype_variant<T>(
+        self,
+        name: &'static str,
+        variant_index: u32,
+        variant: &'static str,
+        value: &T,
+    ) -> Result<Self::Ok, Self::Error>
+    where
+        T: serde_core::ser::Serialize + ?Sized,
+    {
+        ValueSerializer::new().serialize_newtype_variant(name, variant_index, variant, value)
+    }
+
+    fn serialize_seq(self, len: Option<usize>) -> Result<Self::SerializeSeq, Self::Error> {
+        ValueSerializer::new().serialize_seq(len)
+    }
+
+    fn serialize_tuple(self, len: usize) -> Result<Self::SerializeTuple, Self::Error> {
+        ValueSerializer::new().serialize_tuple(len)
+    }
+
+    fn serialize_tuple_struct(
+        self,
+        name: &'static str,
+        len: usize,
+    ) -> Result<Self::SerializeTupleStruct, Self::Error> {
+        ValueSerializer::new().serialize_tuple_struct(name, len)
+    }
+
+    fn serialize_tuple_variant(
+        self,
+        name: &'static str,
+        variant_index: u32,
+        variant: &'static str,
+        len: usize,
+    ) -> Result<Self::SerializeTupleVariant, Self::Error> {
+        ValueSerializer::new().serialize_tuple_variant(name, variant_index, variant, len)
+    }
+
+    fn serialize_map(self, len: Option<usize>) -> Result<Self::SerializeMap, Self::Error> {
+        ValueSerializer::new().serialize_map(len)
+    }
+
+    fn serialize_struct(
+        self,
+        name: &'static str,
+        len: usize,
+    ) -> Result<Self::SerializeStruct, Self::Error> {
+        ValueSerializer::new().serialize_struct(name, len)
+    }
+
+    fn serialize_struct_variant(
+        self,
+        name: &'static str,
+        variant_index: u32,
+        variant: &'static str,
+        len: usize,
+    ) -> Result<Self::SerializeStructVariant, Self::Error> {
+        ValueSerializer::new().serialize_struct_variant(name, variant_index, variant, len)
+    }
+}
+
+pub struct SerializeStructVariant {
+    variant: &'static str,
+    inner: SerializeInlineTable,
+}
+
+impl SerializeStructVariant {
+    pub(crate) fn struct_(variant: &'static str, len: usize) -> Self {
+        Self {
+            variant,
+            inner: SerializeInlineTable::map(Some(len)),
+        }
+    }
+}
+
+impl serde_core::ser::SerializeStructVariant for SerializeStructVariant {
+    type Ok = crate::Value;
+    type Error = Error;
+
+    #[inline]
+    fn serialize_field<T>(&mut self, key: &'static str, value: &T) -> Result<(), Self::Error>
+    where
+        T: serde_core::ser::Serialize + ?Sized,
+    {
+        serde_core::ser::SerializeStruct::serialize_field(&mut self.inner, key, value)
+    }
+
+    #[inline]
+    fn end(self) -> Result<Self::Ok, Self::Error> {
+        let inner = serde_core::ser::SerializeStruct::end(self.inner)?.into();
+        let mut items = crate::table::KeyValuePairs::new();
+        let value = crate::Item::Value(inner);
+        items.insert(crate::Key::new(self.variant), value);
+        Ok(crate::Value::InlineTable(crate::InlineTable::with_pairs(
+            items,
+        )))
+    }
+}

vendor/toml_edit/src/ser/mod.rs

@@ -0,0 +1,105 @@
+//! Serializing Rust structures into TOML.
+//!
+//! This module contains all the Serde support for serializing Rust structures into TOML.
+
+mod array;
+mod error;
+mod key;
+mod map;
+mod pretty;
+mod value;
+
+use crate::visit_mut::VisitMut as _;
+#[allow(clippy::wildcard_imports)]
+use array::*;
+#[allow(clippy::wildcard_imports)]
+use map::*;
+
+pub use error::Error;
+pub use value::ValueSerializer;
+
+/// Serialize the given data structure as a TOML byte vector.
+///
+/// Serialization can fail if `T`'s implementation of `Serialize` decides to
+/// fail, if `T` contains a map with non-string keys, or if `T` attempts to
+/// serialize an unsupported datatype such as an enum, tuple, or tuple struct.
+#[cfg(feature = "display")]
+pub fn to_vec<T>(value: &T) -> Result<Vec<u8>, Error>
+where
+    T: serde_core::ser::Serialize + ?Sized,
+{
+    to_string(value).map(|e| e.into_bytes())
+}
+
+/// Serialize the given data structure as a String of TOML.
+///
+/// Serialization can fail if `T`'s implementation of `Serialize` decides to
+/// fail, if `T` contains a map with non-string keys, or if `T` attempts to
+/// serialize an unsupported datatype such as an enum, tuple, or tuple struct.
+///
+/// # Examples
+///
+/// ```
+/// use serde::Serialize;
+///
+/// #[derive(Serialize)]
+/// struct Config {
+///     database: Database,
+/// }
+///
+/// #[derive(Serialize)]
+/// struct Database {
+///     ip: String,
+///     port: Vec<u16>,
+///     connection_max: u32,
+///     enabled: bool,
+/// }
+///
+/// let config = Config {
+///     database: Database {
+///         ip: "192.168.1.1".to_string(),
+///         port: vec![8001, 8002, 8003],
+///         connection_max: 5000,
+///         enabled: false,
+///     },
+/// };
+///
+/// let toml = toml_edit::ser::to_string(&config).unwrap();
+/// println!("{}", toml)
+/// ```
+#[cfg(feature = "display")]
+pub fn to_string<T>(value: &T) -> Result<String, Error>
+where
+    T: serde_core::ser::Serialize + ?Sized,
+{
+    to_document(value).map(|e| e.to_string())
+}
+
+/// Serialize the given data structure as a "pretty" String of TOML.
+///
+/// This is identical to `to_string` except the output string has a more
+/// "pretty" output. See `ValueSerializer::pretty` for more details.
+#[cfg(feature = "display")]
+pub fn to_string_pretty<T>(value: &T) -> Result<String, Error>
+where
+    T: serde_core::ser::Serialize + ?Sized,
+{
+    let mut document = to_document(value)?;
+    pretty::Pretty::new().visit_document_mut(&mut document);
+    Ok(document.to_string())
+}
+
+/// Serialize the given data structure into a TOML document.
+///
+/// This would allow custom formatting to be applied, mixing with format preserving edits, etc.
+pub fn to_document<T>(value: &T) -> Result<crate::DocumentMut, Error>
+where
+    T: serde_core::ser::Serialize + ?Sized,
+{
+    let value = value.serialize(ValueSerializer::new())?;
+    let item = crate::Item::Value(value);
+    let root = item
+        .into_table()
+        .map_err(|_| Error::UnsupportedType(None))?;
+    Ok(root.into())
+}

vendor/toml_edit/src/ser/pretty.rs

@@ -0,0 +1,58 @@
+pub(crate) struct Pretty {
+    in_value: bool,
+}
+
+impl Pretty {
+    pub(crate) fn new() -> Self {
+        Self { in_value: false }
+    }
+}
+
+impl crate::visit_mut::VisitMut for Pretty {
+    fn visit_document_mut(&mut self, node: &mut crate::DocumentMut) {
+        crate::visit_mut::visit_document_mut(self, node);
+    }
+
+    fn visit_item_mut(&mut self, node: &mut crate::Item) {
+        if !self.in_value {
+            node.make_item();
+        }
+
+        crate::visit_mut::visit_item_mut(self, node);
+    }
+
+    fn visit_table_mut(&mut self, node: &mut crate::Table) {
+        node.decor_mut().clear();
+
+        // Empty tables could be semantically meaningful, so make sure they are not implicit
+        if !node.is_empty() {
+            node.set_implicit(true);
+        }
+
+        crate::visit_mut::visit_table_mut(self, node);
+    }
+
+    fn visit_value_mut(&mut self, node: &mut crate::Value) {
+        node.decor_mut().clear();
+
+        let old_in_value = self.in_value;
+        self.in_value = true;
+        crate::visit_mut::visit_value_mut(self, node);
+        self.in_value = old_in_value;
+    }
+
+    fn visit_array_mut(&mut self, node: &mut crate::Array) {
+        crate::visit_mut::visit_array_mut(self, node);
+
+        if (0..=1).contains(&node.len()) {
+            node.set_trailing("");
+            node.set_trailing_comma(false);
+        } else {
+            for item in node.iter_mut() {
+                item.decor_mut().set_prefix("\n    ");
+            }
+            node.set_trailing("\n");
+            node.set_trailing_comma(true);
+        }
+    }
+}

vendor/toml_edit/src/ser/value.rs

@@ -0,0 +1,249 @@
+use super::Error;
+use super::SerializeMap;
+use super::SerializeStructVariant;
+use super::SerializeTupleVariant;
+use super::SerializeValueArray;
+
+/// Serialization for TOML [values][crate::Value].
+///
+/// This structure implements serialization support for TOML to serialize an
+/// arbitrary type to TOML. Note that the TOML format does not support all
+/// datatypes in Rust, such as enums, tuples, and tuple structs. These types
+/// will generate an error when serialized.
+///
+/// Currently a serializer always writes its output to an in-memory `String`,
+/// which is passed in when creating the serializer itself.
+///
+/// # Examples
+///
+/// ```
+/// # #[cfg(feature = "parse")] {
+/// # #[cfg(feature = "display")] {
+/// use serde::Serialize;
+///
+/// #[derive(Serialize)]
+/// struct Config {
+///     database: Database,
+/// }
+///
+/// #[derive(Serialize)]
+/// struct Database {
+///     ip: String,
+///     port: Vec<u16>,
+///     connection_max: u32,
+///     enabled: bool,
+/// }
+///
+/// let config = Config {
+///     database: Database {
+///         ip: "192.168.1.1".to_string(),
+///         port: vec![8001, 8002, 8003],
+///         connection_max: 5000,
+///         enabled: false,
+///     },
+/// };
+///
+/// let value = serde::Serialize::serialize(
+///     &config,
+///     toml_edit::ser::ValueSerializer::new()
+/// ).unwrap();
+/// println!("{}", value)
+/// # }
+/// # }
+/// ```
+#[derive(Default)]
+#[non_exhaustive]
+pub struct ValueSerializer {}
+
+impl ValueSerializer {
+    /// Creates a new serializer generate a TOML document.
+    pub fn new() -> Self {
+        Self {}
+    }
+}
+
+impl serde_core::ser::Serializer for ValueSerializer {
+    type Ok = crate::Value;
+    type Error = Error;
+    type SerializeSeq = SerializeValueArray;
+    type SerializeTuple = SerializeValueArray;
+    type SerializeTupleStruct = SerializeValueArray;
+    type SerializeTupleVariant = SerializeTupleVariant;
+    type SerializeMap = SerializeMap;
+    type SerializeStruct = SerializeMap;
+    type SerializeStructVariant = SerializeStructVariant;
+
+    fn serialize_bool(self, v: bool) -> Result<Self::Ok, Self::Error> {
+        Ok(v.into())
+    }
+
+    fn serialize_i8(self, v: i8) -> Result<Self::Ok, Self::Error> {
+        self.serialize_i64(v as i64)
+    }
+
+    fn serialize_i16(self, v: i16) -> Result<Self::Ok, Self::Error> {
+        self.serialize_i64(v as i64)
+    }
+
+    fn serialize_i32(self, v: i32) -> Result<Self::Ok, Self::Error> {
+        self.serialize_i64(v as i64)
+    }
+
+    fn serialize_i64(self, v: i64) -> Result<Self::Ok, Self::Error> {
+        Ok(v.into())
+    }
+
+    fn serialize_u8(self, v: u8) -> Result<Self::Ok, Self::Error> {
+        self.serialize_i64(v as i64)
+    }
+
+    fn serialize_u16(self, v: u16) -> Result<Self::Ok, Self::Error> {
+        self.serialize_i64(v as i64)
+    }
+
+    fn serialize_u32(self, v: u32) -> Result<Self::Ok, Self::Error> {
+        self.serialize_i64(v as i64)
+    }
+
+    fn serialize_u64(self, v: u64) -> Result<Self::Ok, Self::Error> {
+        let v: i64 = v
+            .try_into()
+            .map_err(|_err| Error::out_of_range(Some("u64")))?;
+        self.serialize_i64(v)
+    }
+
+    fn serialize_f32(self, v: f32) -> Result<Self::Ok, Self::Error> {
+        self.serialize_f64(v as f64)
+    }
+
+    fn serialize_f64(self, mut v: f64) -> Result<Self::Ok, Self::Error> {
+        // Discard sign of NaN when serialized using Serde.
+        //
+        // In all likelihood the sign of NaNs is not meaningful in the user's
+        // program. Ending up with `-nan` in the TOML document would usually be
+        // surprising and undesirable, when the sign of the NaN was not
+        // intentionally controlled by the caller, or may even be
+        // nondeterministic if it comes from arithmetic operations or a cast.
+        if v.is_nan() {
+            v = v.copysign(1.0);
+        }
+        Ok(v.into())
+    }
+
+    fn serialize_char(self, v: char) -> Result<Self::Ok, Self::Error> {
+        let mut buf = [0; 4];
+        self.serialize_str(v.encode_utf8(&mut buf))
+    }
+
+    fn serialize_str(self, v: &str) -> Result<Self::Ok, Self::Error> {
+        Ok(v.into())
+    }
+
+    fn serialize_bytes(self, value: &[u8]) -> Result<Self::Ok, Self::Error> {
+        use serde_core::ser::Serialize;
+        value.serialize(self)
+    }
+
+    fn serialize_none(self) -> Result<Self::Ok, Self::Error> {
+        Err(Error::unsupported_none())
+    }
+
+    fn serialize_some<T>(self, value: &T) -> Result<Self::Ok, Self::Error>
+    where
+        T: serde_core::ser::Serialize + ?Sized,
+    {
+        value.serialize(self)
+    }
+
+    fn serialize_unit(self) -> Result<Self::Ok, Self::Error> {
+        Err(Error::unsupported_type(Some("unit")))
+    }
+
+    fn serialize_unit_struct(self, name: &'static str) -> Result<Self::Ok, Self::Error> {
+        Err(Error::unsupported_type(Some(name)))
+    }
+
+    fn serialize_unit_variant(
+        self,
+        _name: &'static str,
+        _variant_index: u32,
+        variant: &'static str,
+    ) -> Result<Self::Ok, Self::Error> {
+        self.serialize_str(variant)
+    }
+
+    fn serialize_newtype_struct<T>(
+        self,
+        _name: &'static str,
+        value: &T,
+    ) -> Result<Self::Ok, Self::Error>
+    where
+        T: serde_core::ser::Serialize + ?Sized,
+    {
+        value.serialize(self)
+    }
+
+    fn serialize_newtype_variant<T>(
+        self,
+        _name: &'static str,
+        _variant_index: u32,
+        variant: &'static str,
+        value: &T,
+    ) -> Result<Self::Ok, Self::Error>
+    where
+        T: serde_core::ser::Serialize + ?Sized,
+    {
+        let value = value.serialize(self)?;
+        let mut table = crate::InlineTable::new();
+        table.insert(variant, value);
+        Ok(table.into())
+    }
+
+    fn serialize_seq(self, len: Option<usize>) -> Result<Self::SerializeSeq, Self::Error> {
+        Ok(SerializeValueArray::seq(len))
+    }
+
+    fn serialize_tuple(self, len: usize) -> Result<Self::SerializeTuple, Self::Error> {
+        self.serialize_seq(Some(len))
+    }
+
+    fn serialize_tuple_struct(
+        self,
+        _name: &'static str,
+        len: usize,
+    ) -> Result<Self::SerializeTupleStruct, Self::Error> {
+        self.serialize_seq(Some(len))
+    }
+
+    fn serialize_tuple_variant(
+        self,
+        _name: &'static str,
+        _variant_index: u32,
+        variant: &'static str,
+        len: usize,
+    ) -> Result<Self::SerializeTupleVariant, Self::Error> {
+        Ok(SerializeTupleVariant::tuple(variant, len))
+    }
+
+    fn serialize_map(self, len: Option<usize>) -> Result<Self::SerializeMap, Self::Error> {
+        Ok(SerializeMap::map(len))
+    }
+
+    fn serialize_struct(
+        self,
+        name: &'static str,
+        len: usize,
+    ) -> Result<Self::SerializeStruct, Self::Error> {
+        Ok(SerializeMap::struct_(name, Some(len)))
+    }
+
+    fn serialize_struct_variant(
+        self,
+        _name: &'static str,
+        _variant_index: u32,
+        variant: &'static str,
+        len: usize,
+    ) -> Result<Self::SerializeStructVariant, Self::Error> {
+        Ok(SerializeStructVariant::struct_(variant, len))
+    }
+}

vendor/toml_edit/src/table.rs

@@ -0,0 +1,817 @@
+use std::iter::FromIterator;
+
+use indexmap::map::IndexMap;
+
+use crate::key::Key;
+use crate::repr::Decor;
+use crate::value::DEFAULT_VALUE_DECOR;
+use crate::{InlineTable, Item, KeyMut, Value};
+
+/// A TOML table, a top-level collection of key/[`Value`] pairs under a header and logical
+/// sub-tables
+#[derive(Clone, Debug, Default)]
+pub struct Table {
+    // Comments/spaces before and after the header
+    pub(crate) decor: Decor,
+    // Whether to hide an empty table
+    pub(crate) implicit: bool,
+    // Whether this is a proxy for dotted keys
+    pub(crate) dotted: bool,
+    // Used for putting tables back in their original order when serialising.
+    //
+    // `None` for user created tables (can be overridden with `set_position`)
+    doc_position: Option<isize>,
+    pub(crate) span: Option<std::ops::Range<usize>>,
+    pub(crate) items: KeyValuePairs,
+}
+
+/// Constructors
+///
+/// See also `FromIterator`
+impl Table {
+    /// Creates an empty table.
+    pub fn new() -> Self {
+        Default::default()
+    }
+
+    pub(crate) fn with_pos(doc_position: Option<isize>) -> Self {
+        Self {
+            doc_position,
+            ..Default::default()
+        }
+    }
+
+    pub(crate) fn with_pairs(items: KeyValuePairs) -> Self {
+        Self {
+            items,
+            ..Default::default()
+        }
+    }
+
+    /// Convert to an inline table
+    pub fn into_inline_table(mut self) -> InlineTable {
+        for (_, value) in self.items.iter_mut() {
+            value.make_value();
+        }
+        let mut t = InlineTable::with_pairs(self.items);
+        t.fmt();
+        t
+    }
+}
+
+/// Formatting
+impl Table {
+    /// Get key/values for values that are visually children of this table
+    ///
+    /// For example, this will return dotted keys
+    pub fn get_values(&self) -> Vec<(Vec<&Key>, &Value)> {
+        let mut values = Vec::new();
+        let root = Vec::new();
+        self.append_values(&root, &mut values);
+        values
+    }
+
+    fn append_values<'s>(
+        &'s self,
+        parent: &[&'s Key],
+        values: &mut Vec<(Vec<&'s Key>, &'s Value)>,
+    ) {
+        for (key, value) in self.items.iter() {
+            let mut path = parent.to_vec();
+            path.push(key);
+            match value {
+                Item::Table(table) if table.is_dotted() => {
+                    table.append_values(&path, values);
+                }
+                Item::Value(value) => {
+                    if let Some(table) = value.as_inline_table() {
+                        if table.is_dotted() {
+                            table.append_values(&path, values);
+                        } else {
+                            values.push((path, value));
+                        }
+                    } else {
+                        values.push((path, value));
+                    }
+                }
+                _ => {}
+            }
+        }
+    }
+
+    pub(crate) fn append_all_values<'s>(
+        &'s self,
+        parent: &[&'s Key],
+        values: &mut Vec<(Vec<&'s Key>, &'s Value)>,
+    ) {
+        for (key, value) in self.items.iter() {
+            let mut path = parent.to_vec();
+            path.push(key);
+            match value {
+                Item::Table(table) => {
+                    table.append_all_values(&path, values);
+                }
+                Item::Value(value) => {
+                    if let Some(table) = value.as_inline_table() {
+                        if table.is_dotted() {
+                            table.append_values(&path, values);
+                        } else {
+                            values.push((path, value));
+                        }
+                    } else {
+                        values.push((path, value));
+                    }
+                }
+                _ => {}
+            }
+        }
+    }
+
+    /// Auto formats the table.
+    pub fn fmt(&mut self) {
+        decorate_table(self);
+    }
+
+    /// Sorts [Key]/[Value]-pairs of the table
+    ///
+    /// <div class="warning">
+    ///
+    /// This sorts the syntactic table (everything under the `[header]`) and not the logical map of
+    /// key-value pairs.
+    /// This does not affect the order of [sub-tables][Table] or [sub-arrays][crate::ArrayOfTables].
+    /// This is not recursive.
+    ///
+    /// </div>
+    pub fn sort_values(&mut self) {
+        // Assuming standard tables have their doc_position set and this won't negatively impact them
+        self.items.sort_keys();
+        for value in self.items.values_mut() {
+            match value {
+                Item::Table(table) if table.is_dotted() => {
+                    table.sort_values();
+                }
+                _ => {}
+            }
+        }
+    }
+
+    /// Sort [Key]/[Value]-pairs of the table using the using the comparison function `compare`
+    ///
+    /// The comparison function receives two key and value pairs to compare (you can sort by keys or
+    /// values or their combination as needed).
+    ///
+    /// <div class="warning">
+    ///
+    /// This sorts the syntactic table (everything under the `[header]`) and not the logical map of
+    /// key-value pairs.
+    /// This does not affect the order of [sub-tables][Table] or [sub-arrays][crate::ArrayOfTables].
+    /// This is not recursive.
+    ///
+    /// </div>
+    pub fn sort_values_by<F>(&mut self, mut compare: F)
+    where
+        F: FnMut(&Key, &Item, &Key, &Item) -> std::cmp::Ordering,
+    {
+        self.sort_values_by_internal(&mut compare);
+    }
+
+    fn sort_values_by_internal<F>(&mut self, compare: &mut F)
+    where
+        F: FnMut(&Key, &Item, &Key, &Item) -> std::cmp::Ordering,
+    {
+        let modified_cmp =
+            |key1: &Key, val1: &Item, key2: &Key, val2: &Item| -> std::cmp::Ordering {
+                compare(key1, val1, key2, val2)
+            };
+
+        self.items.sort_by(modified_cmp);
+
+        for value in self.items.values_mut() {
+            match value {
+                Item::Table(table) if table.is_dotted() => {
+                    table.sort_values_by_internal(compare);
+                }
+                _ => {}
+            }
+        }
+    }
+
+    /// If a table has no key/value pairs and implicit, it will not be displayed.
+    ///
+    /// # Examples
+    ///
+    /// ```notrust
+    /// [target."x86_64/windows.json".dependencies]
+    /// ```
+    ///
+    /// In the document above, tables `target` and `target."x86_64/windows.json"` are implicit.
+    ///
+    /// ```
+    /// # #[cfg(feature = "parse")] {
+    /// # #[cfg(feature = "display")] {
+    /// use toml_edit::DocumentMut;
+    /// let mut doc = "[a]\n[a.b]\n".parse::<DocumentMut>().expect("invalid toml");
+    ///
+    /// doc["a"].as_table_mut().unwrap().set_implicit(true);
+    /// assert_eq!(doc.to_string(), "[a.b]\n");
+    /// # }
+    /// # }
+    /// ```
+    pub fn set_implicit(&mut self, implicit: bool) {
+        self.implicit = implicit;
+    }
+
+    /// If a table has no key/value pairs and implicit, it will not be displayed.
+    pub fn is_implicit(&self) -> bool {
+        self.implicit
+    }
+
+    /// Change this table's dotted status
+    pub fn set_dotted(&mut self, yes: bool) {
+        self.dotted = yes;
+    }
+
+    /// Check if this is a wrapper for dotted keys, rather than a standard table
+    pub fn is_dotted(&self) -> bool {
+        self.dotted
+    }
+
+    /// Sets the position of the `Table` within the [`DocumentMut`][crate::DocumentMut].
+    ///
+    /// Use `None` for having an unspecified location
+    pub fn set_position(&mut self, doc_position: Option<isize>) {
+        self.doc_position = doc_position;
+    }
+
+    /// The position of the `Table` within the [`DocumentMut`][crate::DocumentMut].
+    ///
+    /// Returns `None` if the `Table` was created manually (i.e. not via parsing)
+    /// in which case its position is set automatically.  This can be overridden with
+    /// [`Table::set_position`].
+    pub fn position(&self) -> Option<isize> {
+        self.doc_position
+    }
+
+    /// Returns the surrounding whitespace
+    pub fn decor_mut(&mut self) -> &mut Decor {
+        &mut self.decor
+    }
+
+    /// Returns the decor associated with a given key of the table.
+    pub fn decor(&self) -> &Decor {
+        &self.decor
+    }
+
+    /// Returns an accessor to a key's formatting
+    pub fn key(&self, key: &str) -> Option<&'_ Key> {
+        self.items.get_full(key).map(|(_, key, _)| key)
+    }
+
+    /// Returns an accessor to a key's formatting
+    pub fn key_mut(&mut self, key: &str) -> Option<KeyMut<'_>> {
+        use indexmap::map::MutableKeys;
+        self.items
+            .get_full_mut2(key)
+            .map(|(_, key, _)| key.as_mut())
+    }
+
+    /// The location within the original document
+    ///
+    /// This generally requires a [`Document`][crate::Document].
+    pub fn span(&self) -> Option<std::ops::Range<usize>> {
+        self.span.clone()
+    }
+
+    pub(crate) fn despan(&mut self, input: &str) {
+        use indexmap::map::MutableKeys;
+        self.span = None;
+        self.decor.despan(input);
+        for (key, value) in self.items.iter_mut2() {
+            key.despan(input);
+            value.despan(input);
+        }
+    }
+}
+
+impl Table {
+    /// Returns an iterator over all key/value pairs, including empty.
+    pub fn iter(&self) -> Iter<'_> {
+        Box::new(
+            self.items
+                .iter()
+                .filter(|(_, value)| !value.is_none())
+                .map(|(key, value)| (key.get(), value)),
+        )
+    }
+
+    /// Returns an mutable iterator over all key/value pairs, including empty.
+    pub fn iter_mut(&mut self) -> IterMut<'_> {
+        use indexmap::map::MutableKeys;
+        Box::new(
+            self.items
+                .iter_mut2()
+                .filter(|(_, value)| !value.is_none())
+                .map(|(key, value)| (key.as_mut(), value)),
+        )
+    }
+
+    /// Returns the number of non-empty items in the table.
+    pub fn len(&self) -> usize {
+        self.iter().count()
+    }
+
+    /// Returns true if the table is empty.
+    pub fn is_empty(&self) -> bool {
+        self.len() == 0
+    }
+
+    /// Clears the table, removing all key-value pairs. Keeps the allocated memory for reuse.
+    pub fn clear(&mut self) {
+        self.items.clear();
+    }
+
+    /// Gets the given key's corresponding entry in the Table for in-place manipulation.
+    pub fn entry<'a>(&'a mut self, key: &str) -> Entry<'a> {
+        // Accept a `&str` rather than an owned type to keep `String`, well, internal
+        match self.items.entry(key.into()) {
+            indexmap::map::Entry::Occupied(entry) => Entry::Occupied(OccupiedEntry { entry }),
+            indexmap::map::Entry::Vacant(entry) => Entry::Vacant(VacantEntry { entry }),
+        }
+    }
+
+    /// Gets the given key's corresponding entry in the Table for in-place manipulation.
+    pub fn entry_format<'a>(&'a mut self, key: &Key) -> Entry<'a> {
+        // Accept a `&Key` to be consistent with `entry`
+        match self.items.entry(key.clone()) {
+            indexmap::map::Entry::Occupied(entry) => Entry::Occupied(OccupiedEntry { entry }),
+            indexmap::map::Entry::Vacant(entry) => Entry::Vacant(VacantEntry { entry }),
+        }
+    }
+
+    /// Returns an optional reference to an item given the key.
+    pub fn get<'a>(&'a self, key: &str) -> Option<&'a Item> {
+        self.items
+            .get(key)
+            .and_then(|value| if !value.is_none() { Some(value) } else { None })
+    }
+
+    /// Returns an optional mutable reference to an item given the key.
+    pub fn get_mut<'a>(&'a mut self, key: &str) -> Option<&'a mut Item> {
+        self.items
+            .get_mut(key)
+            .and_then(|value| if !value.is_none() { Some(value) } else { None })
+    }
+
+    /// Return references to the key-value pair stored for key, if it is present, else None.
+    pub fn get_key_value<'a>(&'a self, key: &str) -> Option<(&'a Key, &'a Item)> {
+        self.items.get_full(key).and_then(|(_, key, value)| {
+            if !value.is_none() {
+                Some((key, value))
+            } else {
+                None
+            }
+        })
+    }
+
+    /// Return mutable references to the key-value pair stored for key, if it is present, else None.
+    pub fn get_key_value_mut<'a>(&'a mut self, key: &str) -> Option<(KeyMut<'a>, &'a mut Item)> {
+        use indexmap::map::MutableKeys;
+        self.items.get_full_mut2(key).and_then(|(_, key, value)| {
+            if !value.is_none() {
+                Some((key.as_mut(), value))
+            } else {
+                None
+            }
+        })
+    }
+
+    /// Returns true if the table contains an item with the given key.
+    pub fn contains_key(&self, key: &str) -> bool {
+        if let Some(value) = self.items.get(key) {
+            !value.is_none()
+        } else {
+            false
+        }
+    }
+
+    /// Returns true if the table contains a table with the given key.
+    pub fn contains_table(&self, key: &str) -> bool {
+        if let Some(value) = self.items.get(key) {
+            value.is_table()
+        } else {
+            false
+        }
+    }
+
+    /// Returns true if the table contains a value with the given key.
+    pub fn contains_value(&self, key: &str) -> bool {
+        if let Some(value) = self.items.get(key) {
+            value.is_value()
+        } else {
+            false
+        }
+    }
+
+    /// Returns true if the table contains an array of tables with the given key.
+    pub fn contains_array_of_tables(&self, key: &str) -> bool {
+        if let Some(value) = self.items.get(key) {
+            value.is_array_of_tables()
+        } else {
+            false
+        }
+    }
+
+    /// Inserts a key-value pair into the map.
+    pub fn insert(&mut self, key: &str, item: Item) -> Option<Item> {
+        use indexmap::map::MutableEntryKey;
+        let key = Key::new(key);
+        match self.items.entry(key.clone()) {
+            indexmap::map::Entry::Occupied(mut entry) => {
+                entry.key_mut().fmt();
+                let old = std::mem::replace(entry.get_mut(), item);
+                Some(old)
+            }
+            indexmap::map::Entry::Vacant(entry) => {
+                entry.insert(item);
+                None
+            }
+        }
+    }
+
+    /// Inserts a key-value pair into the map.
+    pub fn insert_formatted(&mut self, key: &Key, item: Item) -> Option<Item> {
+        use indexmap::map::MutableEntryKey;
+        match self.items.entry(key.clone()) {
+            indexmap::map::Entry::Occupied(mut entry) => {
+                *entry.key_mut() = key.clone();
+                let old = std::mem::replace(entry.get_mut(), item);
+                Some(old)
+            }
+            indexmap::map::Entry::Vacant(entry) => {
+                entry.insert(item);
+                None
+            }
+        }
+    }
+
+    /// Removes an item given the key.
+    pub fn remove(&mut self, key: &str) -> Option<Item> {
+        self.items.shift_remove(key)
+    }
+
+    /// Removes a key from the map, returning the stored key and value if the key was previously in the map.
+    pub fn remove_entry(&mut self, key: &str) -> Option<(Key, Item)> {
+        self.items.shift_remove_entry(key)
+    }
+
+    /// Retains only the elements specified by the `keep` predicate.
+    ///
+    /// In other words, remove all pairs `(key, item)` for which
+    /// `keep(&key, &mut item)` returns `false`.
+    ///
+    /// The elements are visited in iteration order.
+    pub fn retain<F>(&mut self, mut keep: F)
+    where
+        F: FnMut(&str, &mut Item) -> bool,
+    {
+        self.items.retain(|key, value| keep(key, value));
+    }
+}
+
+#[cfg(feature = "display")]
+impl std::fmt::Display for Table {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        let children = self.get_values();
+        // print table body
+        for (key_path, value) in children {
+            crate::encode::encode_key_path_ref(&key_path, f, None, DEFAULT_KEY_DECOR)?;
+            write!(f, "=")?;
+            crate::encode::encode_value(value, f, None, DEFAULT_VALUE_DECOR)?;
+            writeln!(f)?;
+        }
+        Ok(())
+    }
+}
+
+impl<K: Into<Key>, V: Into<Item>> Extend<(K, V)> for Table {
+    fn extend<T: IntoIterator<Item = (K, V)>>(&mut self, iter: T) {
+        for (key, value) in iter {
+            let key = key.into();
+            let value = value.into();
+            self.items.insert(key, value);
+        }
+    }
+}
+
+impl<K: Into<Key>, V: Into<Item>> FromIterator<(K, V)> for Table {
+    fn from_iter<I>(iter: I) -> Self
+    where
+        I: IntoIterator<Item = (K, V)>,
+    {
+        let mut table = Self::new();
+        table.extend(iter);
+        table
+    }
+}
+
+impl IntoIterator for Table {
+    type Item = (String, Item);
+    type IntoIter = IntoIter;
+
+    fn into_iter(self) -> Self::IntoIter {
+        Box::new(self.items.into_iter().map(|(k, value)| (k.into(), value)))
+    }
+}
+
+impl<'s> IntoIterator for &'s Table {
+    type Item = (&'s str, &'s Item);
+    type IntoIter = Iter<'s>;
+
+    fn into_iter(self) -> Self::IntoIter {
+        self.iter()
+    }
+}
+
+pub(crate) type KeyValuePairs = IndexMap<Key, Item>;
+
+fn decorate_table(table: &mut Table) {
+    use indexmap::map::MutableKeys;
+    for (mut key, value) in table
+        .items
+        .iter_mut2()
+        .filter(|(_, value)| value.is_value())
+        .map(|(key, value)| (key.as_mut(), value.as_value_mut().unwrap()))
+    {
+        key.leaf_decor_mut().clear();
+        key.dotted_decor_mut().clear();
+        value.decor_mut().clear();
+    }
+}
+
+// `key1 = value1`
+pub(crate) const DEFAULT_ROOT_DECOR: (&str, &str) = ("", "");
+pub(crate) const DEFAULT_KEY_DECOR: (&str, &str) = ("", " ");
+pub(crate) const DEFAULT_TABLE_DECOR: (&str, &str) = ("\n", "");
+pub(crate) const DEFAULT_KEY_PATH_DECOR: (&str, &str) = ("", "");
+
+/// An owned iterator type over [`Table`]'s [`Key`]/[`Item`] pairs
+pub type IntoIter = Box<dyn Iterator<Item = (String, Item)>>;
+/// An iterator type over [`Table`]'s [`Key`]/[`Item`] pairs
+pub type Iter<'a> = Box<dyn Iterator<Item = (&'a str, &'a Item)> + 'a>;
+/// A mutable iterator type over [`Table`]'s [`Key`]/[`Item`] pairs
+pub type IterMut<'a> = Box<dyn Iterator<Item = (KeyMut<'a>, &'a mut Item)> + 'a>;
+
+/// This trait represents either a `Table`, or an `InlineTable`.
+pub trait TableLike: crate::private::Sealed {
+    /// Returns an iterator over key/value pairs.
+    fn iter(&self) -> Iter<'_>;
+    /// Returns an mutable iterator over all key/value pairs, including empty.
+    fn iter_mut(&mut self) -> IterMut<'_>;
+    /// Returns the number of nonempty items.
+    fn len(&self) -> usize {
+        self.iter().filter(|&(_, v)| !v.is_none()).count()
+    }
+    /// Returns true if the table is empty.
+    fn is_empty(&self) -> bool {
+        self.len() == 0
+    }
+    /// Clears the table, removing all key-value pairs. Keeps the allocated memory for reuse.
+    fn clear(&mut self);
+    /// Gets the given key's corresponding entry in the Table for in-place manipulation.
+    fn entry<'a>(&'a mut self, key: &str) -> Entry<'a>;
+    /// Gets the given key's corresponding entry in the Table for in-place manipulation.
+    fn entry_format<'a>(&'a mut self, key: &Key) -> Entry<'a>;
+    /// Returns an optional reference to an item given the key.
+    fn get<'s>(&'s self, key: &str) -> Option<&'s Item>;
+    /// Returns an optional mutable reference to an item given the key.
+    fn get_mut<'s>(&'s mut self, key: &str) -> Option<&'s mut Item>;
+    /// Return references to the key-value pair stored for key, if it is present, else None.
+    fn get_key_value<'a>(&'a self, key: &str) -> Option<(&'a Key, &'a Item)>;
+    /// Return mutable references to the key-value pair stored for key, if it is present, else None.
+    fn get_key_value_mut<'a>(&'a mut self, key: &str) -> Option<(KeyMut<'a>, &'a mut Item)>;
+    /// Returns true if the table contains an item with the given key.
+    fn contains_key(&self, key: &str) -> bool;
+    /// Inserts a key-value pair into the map.
+    fn insert(&mut self, key: &str, value: Item) -> Option<Item>;
+    /// Removes an item given the key.
+    fn remove(&mut self, key: &str) -> Option<Item>;
+
+    /// Get key/values for values that are visually children of this table
+    ///
+    /// For example, this will return dotted keys
+    fn get_values(&self) -> Vec<(Vec<&Key>, &Value)>;
+
+    /// Auto formats the table.
+    fn fmt(&mut self);
+    /// Sorts [Key]/[Value]-pairs of the table
+    ///
+    /// <div class="warning">
+    ///
+    /// This sorts the syntactic table (everything under the `[header]`) and not the logical map of
+    /// key-value pairs.
+    /// This does not affect the order of [sub-tables][Table] or [sub-arrays][crate::ArrayOfTables].
+    /// This is not recursive.
+    ///
+    /// </div>
+    fn sort_values(&mut self);
+    /// Change this table's dotted status
+    fn set_dotted(&mut self, yes: bool);
+    /// Check if this is a wrapper for dotted keys, rather than a standard table
+    fn is_dotted(&self) -> bool;
+
+    /// Returns an accessor to a key's formatting
+    fn key(&self, key: &str) -> Option<&'_ Key>;
+    /// Returns an accessor to a key's formatting
+    fn key_mut(&mut self, key: &str) -> Option<KeyMut<'_>>;
+}
+
+impl TableLike for Table {
+    fn iter(&self) -> Iter<'_> {
+        self.iter()
+    }
+    fn iter_mut(&mut self) -> IterMut<'_> {
+        self.iter_mut()
+    }
+    fn clear(&mut self) {
+        self.clear();
+    }
+    fn entry<'a>(&'a mut self, key: &str) -> Entry<'a> {
+        self.entry(key)
+    }
+    fn entry_format<'a>(&'a mut self, key: &Key) -> Entry<'a> {
+        self.entry_format(key)
+    }
+    fn get<'s>(&'s self, key: &str) -> Option<&'s Item> {
+        self.get(key)
+    }
+    fn get_mut<'s>(&'s mut self, key: &str) -> Option<&'s mut Item> {
+        self.get_mut(key)
+    }
+    fn get_key_value<'a>(&'a self, key: &str) -> Option<(&'a Key, &'a Item)> {
+        self.get_key_value(key)
+    }
+    fn get_key_value_mut<'a>(&'a mut self, key: &str) -> Option<(KeyMut<'a>, &'a mut Item)> {
+        self.get_key_value_mut(key)
+    }
+    fn contains_key(&self, key: &str) -> bool {
+        self.contains_key(key)
+    }
+    fn insert(&mut self, key: &str, value: Item) -> Option<Item> {
+        self.insert(key, value)
+    }
+    fn remove(&mut self, key: &str) -> Option<Item> {
+        self.remove(key)
+    }
+
+    fn get_values(&self) -> Vec<(Vec<&Key>, &Value)> {
+        self.get_values()
+    }
+    fn fmt(&mut self) {
+        self.fmt();
+    }
+    fn sort_values(&mut self) {
+        self.sort_values();
+    }
+    fn is_dotted(&self) -> bool {
+        self.is_dotted()
+    }
+    fn set_dotted(&mut self, yes: bool) {
+        self.set_dotted(yes);
+    }
+
+    fn key(&self, key: &str) -> Option<&'_ Key> {
+        self.key(key)
+    }
+    fn key_mut(&mut self, key: &str) -> Option<KeyMut<'_>> {
+        self.key_mut(key)
+    }
+}
+
+/// A view into a single location in a [`Table`], which may be vacant or occupied.
+pub enum Entry<'a> {
+    /// An occupied Entry.
+    Occupied(OccupiedEntry<'a>),
+    /// A vacant Entry.
+    Vacant(VacantEntry<'a>),
+}
+
+impl<'a> Entry<'a> {
+    /// Returns the entry key
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// use toml_edit::Table;
+    ///
+    /// let mut map = Table::new();
+    ///
+    /// assert_eq!("hello", map.entry("hello").key());
+    /// ```
+    pub fn key(&self) -> &str {
+        match self {
+            Entry::Occupied(e) => e.key(),
+            Entry::Vacant(e) => e.key(),
+        }
+    }
+
+    /// Ensures a value is in the entry by inserting the default if empty, and returns
+    /// a mutable reference to the value in the entry.
+    pub fn or_insert(self, default: Item) -> &'a mut Item {
+        match self {
+            Entry::Occupied(entry) => entry.into_mut(),
+            Entry::Vacant(entry) => entry.insert(default),
+        }
+    }
+
+    /// Ensures a value is in the entry by inserting the result of the default function if empty,
+    /// and returns a mutable reference to the value in the entry.
+    pub fn or_insert_with<F: FnOnce() -> Item>(self, default: F) -> &'a mut Item {
+        match self {
+            Entry::Occupied(entry) => entry.into_mut(),
+            Entry::Vacant(entry) => entry.insert(default()),
+        }
+    }
+}
+
+/// A view into a single occupied location in a [`Table`].
+pub struct OccupiedEntry<'a> {
+    pub(crate) entry: indexmap::map::OccupiedEntry<'a, Key, Item>,
+}
+
+impl<'a> OccupiedEntry<'a> {
+    /// Gets a reference to the entry key
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// use toml_edit::Table;
+    ///
+    /// let mut map = Table::new();
+    ///
+    /// assert_eq!("foo", map.entry("foo").key());
+    /// ```
+    pub fn key(&self) -> &str {
+        self.entry.key().get()
+    }
+
+    /// Gets a mutable reference to the entry key
+    pub fn key_mut(&mut self) -> KeyMut<'_> {
+        use indexmap::map::MutableEntryKey;
+        self.entry.key_mut().as_mut()
+    }
+
+    /// Gets a reference to the value in the entry.
+    pub fn get(&self) -> &Item {
+        self.entry.get()
+    }
+
+    /// Gets a mutable reference to the value in the entry.
+    pub fn get_mut(&mut self) -> &mut Item {
+        self.entry.get_mut()
+    }
+
+    /// Converts the `OccupiedEntry` into a mutable reference to the value in the entry
+    /// with a lifetime bound to the map itself
+    pub fn into_mut(self) -> &'a mut Item {
+        self.entry.into_mut()
+    }
+
+    /// Sets the value of the entry, and returns the entry's old value
+    pub fn insert(&mut self, value: Item) -> Item {
+        self.entry.insert(value)
+    }
+
+    /// Takes the value out of the entry, and returns it
+    pub fn remove(self) -> Item {
+        self.entry.shift_remove()
+    }
+}
+
+/// A view into a single empty location in a [`Table`].
+pub struct VacantEntry<'a> {
+    pub(crate) entry: indexmap::map::VacantEntry<'a, Key, Item>,
+}
+
+impl<'a> VacantEntry<'a> {
+    /// Gets a reference to the entry key
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// use toml_edit::Table;
+    ///
+    /// let mut map = Table::new();
+    ///
+    /// assert_eq!("foo", map.entry("foo").key());
+    /// ```
+    pub fn key(&self) -> &str {
+        self.entry.key().get()
+    }
+
+    /// Sets the value of the entry with the `VacantEntry`'s key,
+    /// and returns a mutable reference to it
+    pub fn insert(self, value: Item) -> &'a mut Item {
+        let entry = self.entry;
+        entry.insert(value)
+    }
+}

vendor/toml_edit/src/value.rs

@@ -0,0 +1,386 @@
+use std::iter::FromIterator;
+use std::str::FromStr;
+
+use toml_datetime::{Date, Datetime, Time};
+
+use crate::key::Key;
+use crate::repr::{Decor, Formatted};
+use crate::{Array, InlineTable, RawString};
+
+/// For [`Key`]/Value pairs under a [`Table`][crate::Table] header or inside another
+/// Value
+#[derive(Debug, Clone)]
+pub enum Value {
+    /// A string value.
+    String(Formatted<String>),
+    /// A 64-bit integer value.
+    Integer(Formatted<i64>),
+    /// A 64-bit float value.
+    Float(Formatted<f64>),
+    /// A boolean value.
+    Boolean(Formatted<bool>),
+    /// An RFC 3339 formatted date-time with offset.
+    Datetime(Formatted<Datetime>),
+    /// An inline array of values.
+    Array(Array),
+    /// An inline table of key/value pairs.
+    InlineTable(InlineTable),
+}
+
+/// Downcasting
+impl Value {
+    /// Text description of value type
+    pub fn type_name(&self) -> &'static str {
+        match self {
+            Self::String(..) => "string",
+            Self::Integer(..) => "integer",
+            Self::Float(..) => "float",
+            Self::Boolean(..) => "boolean",
+            Self::Datetime(..) => "datetime",
+            Self::Array(..) => "array",
+            Self::InlineTable(..) => "inline table",
+        }
+    }
+
+    /// Casts `self` to str.
+    pub fn as_str(&self) -> Option<&str> {
+        match *self {
+            Self::String(ref value) => Some(value.value()),
+            _ => None,
+        }
+    }
+
+    /// Returns true if `self` is a string.
+    pub fn is_str(&self) -> bool {
+        self.as_str().is_some()
+    }
+
+    /// Casts `self` to integer.
+    pub fn as_integer(&self) -> Option<i64> {
+        match *self {
+            Self::Integer(ref value) => Some(*value.value()),
+            _ => None,
+        }
+    }
+
+    /// Returns true if `self` is an integer.
+    pub fn is_integer(&self) -> bool {
+        self.as_integer().is_some()
+    }
+
+    /// Casts `self` to float.
+    pub fn as_float(&self) -> Option<f64> {
+        match *self {
+            Self::Float(ref value) => Some(*value.value()),
+            _ => None,
+        }
+    }
+
+    /// Returns true if `self` is a float.
+    pub fn is_float(&self) -> bool {
+        self.as_float().is_some()
+    }
+
+    /// Casts `self` to boolean.
+    pub fn as_bool(&self) -> Option<bool> {
+        match *self {
+            Self::Boolean(ref value) => Some(*value.value()),
+            _ => None,
+        }
+    }
+
+    /// Returns true if `self` is a boolean.
+    pub fn is_bool(&self) -> bool {
+        self.as_bool().is_some()
+    }
+
+    /// Casts `self` to date-time.
+    pub fn as_datetime(&self) -> Option<&Datetime> {
+        match *self {
+            Self::Datetime(ref value) => Some(value.value()),
+            _ => None,
+        }
+    }
+
+    /// Returns true if `self` is a date-time.
+    pub fn is_datetime(&self) -> bool {
+        self.as_datetime().is_some()
+    }
+
+    /// Casts `self` to array.
+    pub fn as_array(&self) -> Option<&Array> {
+        match *self {
+            Self::Array(ref value) => Some(value),
+            _ => None,
+        }
+    }
+
+    /// Casts `self` to mutable array.
+    pub fn as_array_mut(&mut self) -> Option<&mut Array> {
+        match *self {
+            Self::Array(ref mut value) => Some(value),
+            _ => None,
+        }
+    }
+
+    /// Returns true if `self` is an array.
+    pub fn is_array(&self) -> bool {
+        self.as_array().is_some()
+    }
+
+    /// Casts `self` to inline table.
+    pub fn as_inline_table(&self) -> Option<&InlineTable> {
+        match *self {
+            Self::InlineTable(ref value) => Some(value),
+            _ => None,
+        }
+    }
+
+    /// Casts `self` to mutable inline table.
+    pub fn as_inline_table_mut(&mut self) -> Option<&mut InlineTable> {
+        match *self {
+            Self::InlineTable(ref mut value) => Some(value),
+            _ => None,
+        }
+    }
+
+    /// Returns true if `self` is an inline table.
+    pub fn is_inline_table(&self) -> bool {
+        self.as_inline_table().is_some()
+    }
+}
+
+impl Value {
+    /// Get the decoration of the value.
+    /// # Example
+    /// ```rust
+    /// let v = toml_edit::Value::from(true);
+    /// assert_eq!(v.decor().suffix(), None);
+    ///```
+    pub fn decor_mut(&mut self) -> &mut Decor {
+        match self {
+            Self::String(f) => f.decor_mut(),
+            Self::Integer(f) => f.decor_mut(),
+            Self::Float(f) => f.decor_mut(),
+            Self::Boolean(f) => f.decor_mut(),
+            Self::Datetime(f) => f.decor_mut(),
+            Self::Array(a) => a.decor_mut(),
+            Self::InlineTable(t) => t.decor_mut(),
+        }
+    }
+
+    /// Get the decoration of the value.
+    /// # Example
+    /// ```rust
+    /// let v = toml_edit::Value::from(true);
+    /// assert_eq!(v.decor().suffix(), None);
+    ///```
+    pub fn decor(&self) -> &Decor {
+        match *self {
+            Self::String(ref f) => f.decor(),
+            Self::Integer(ref f) => f.decor(),
+            Self::Float(ref f) => f.decor(),
+            Self::Boolean(ref f) => f.decor(),
+            Self::Datetime(ref f) => f.decor(),
+            Self::Array(ref a) => a.decor(),
+            Self::InlineTable(ref t) => t.decor(),
+        }
+    }
+
+    /// Sets the prefix and the suffix for value.
+    /// # Example
+    /// ```rust
+    /// # #[cfg(feature = "display")] {
+    /// let mut v = toml_edit::Value::from(42);
+    /// assert_eq!(&v.to_string(), "42");
+    /// let d = v.decorated(" ", " ");
+    /// assert_eq!(&d.to_string(), " 42 ");
+    /// # }
+    /// ```
+    pub fn decorated(mut self, prefix: impl Into<RawString>, suffix: impl Into<RawString>) -> Self {
+        self.decorate(prefix, suffix);
+        self
+    }
+
+    pub(crate) fn decorate(&mut self, prefix: impl Into<RawString>, suffix: impl Into<RawString>) {
+        let decor = self.decor_mut();
+        *decor = Decor::new(prefix, suffix);
+    }
+
+    /// The location within the original document
+    ///
+    /// This generally requires a [`Document`][crate::Document].
+    pub fn span(&self) -> Option<std::ops::Range<usize>> {
+        match self {
+            Self::String(f) => f.span(),
+            Self::Integer(f) => f.span(),
+            Self::Float(f) => f.span(),
+            Self::Boolean(f) => f.span(),
+            Self::Datetime(f) => f.span(),
+            Self::Array(a) => a.span(),
+            Self::InlineTable(t) => t.span(),
+        }
+    }
+
+    pub(crate) fn despan(&mut self, input: &str) {
+        match self {
+            Self::String(f) => f.despan(input),
+            Self::Integer(f) => f.despan(input),
+            Self::Float(f) => f.despan(input),
+            Self::Boolean(f) => f.despan(input),
+            Self::Datetime(f) => f.despan(input),
+            Self::Array(a) => a.despan(input),
+            Self::InlineTable(t) => t.despan(input),
+        }
+    }
+}
+
+#[cfg(feature = "parse")]
+impl FromStr for Value {
+    type Err = crate::TomlError;
+
+    /// Parses a value from a &str
+    fn from_str(s: &str) -> Result<Self, Self::Err> {
+        let source = toml_parser::Source::new(s);
+        let mut sink = crate::error::TomlSink::<Option<_>>::new(source);
+        let mut value = crate::parser::parse_value(source, &mut sink);
+        if let Some(err) = sink.into_inner() {
+            Err(err)
+        } else {
+            // Only take the repr and not decor, as its probably not intended
+            value.decor_mut().clear();
+            value.despan(s);
+            Ok(value)
+        }
+    }
+}
+
+impl<'b> From<&'b Self> for Value {
+    fn from(s: &'b Self) -> Self {
+        s.clone()
+    }
+}
+
+impl<'b> From<&'b str> for Value {
+    fn from(s: &'b str) -> Self {
+        s.to_owned().into()
+    }
+}
+
+impl<'b> From<&'b String> for Value {
+    fn from(s: &'b String) -> Self {
+        s.to_owned().into()
+    }
+}
+
+impl From<String> for Value {
+    fn from(s: String) -> Self {
+        Self::String(Formatted::new(s))
+    }
+}
+
+impl From<i64> for Value {
+    fn from(i: i64) -> Self {
+        Self::Integer(Formatted::new(i))
+    }
+}
+
+impl From<f64> for Value {
+    fn from(f: f64) -> Self {
+        // Preserve sign of NaN. It may get written to TOML as `-nan`.
+        Self::Float(Formatted::new(f))
+    }
+}
+
+impl From<bool> for Value {
+    fn from(b: bool) -> Self {
+        Self::Boolean(Formatted::new(b))
+    }
+}
+
+impl From<Datetime> for Value {
+    fn from(d: Datetime) -> Self {
+        Self::Datetime(Formatted::new(d))
+    }
+}
+
+impl From<Date> for Value {
+    fn from(d: Date) -> Self {
+        let d: Datetime = d.into();
+        d.into()
+    }
+}
+
+impl From<Time> for Value {
+    fn from(d: Time) -> Self {
+        let d: Datetime = d.into();
+        d.into()
+    }
+}
+
+impl From<Array> for Value {
+    fn from(array: Array) -> Self {
+        Self::Array(array)
+    }
+}
+
+impl From<InlineTable> for Value {
+    fn from(table: InlineTable) -> Self {
+        Self::InlineTable(table)
+    }
+}
+
+impl<V: Into<Self>> FromIterator<V> for Value {
+    fn from_iter<I>(iter: I) -> Self
+    where
+        I: IntoIterator<Item = V>,
+    {
+        let array: Array = iter.into_iter().collect();
+        Self::Array(array)
+    }
+}
+
+impl<K: Into<Key>, V: Into<Self>> FromIterator<(K, V)> for Value {
+    fn from_iter<I>(iter: I) -> Self
+    where
+        I: IntoIterator<Item = (K, V)>,
+    {
+        let table: InlineTable = iter.into_iter().collect();
+        Self::InlineTable(table)
+    }
+}
+
+#[cfg(feature = "display")]
+impl std::fmt::Display for Value {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        crate::encode::encode_value(self, f, None, ("", ""))
+    }
+}
+
+// `key1 = value1`
+pub(crate) const DEFAULT_VALUE_DECOR: (&str, &str) = (" ", "");
+// `{ key = value }`
+pub(crate) const DEFAULT_TRAILING_VALUE_DECOR: (&str, &str) = (" ", " ");
+// `[value1, value2]`
+pub(crate) const DEFAULT_LEADING_VALUE_DECOR: (&str, &str) = ("", "");
+
+#[cfg(test)]
+#[cfg(feature = "parse")]
+#[cfg(feature = "display")]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn from_iter_formatting() {
+        let features = ["node".to_owned(), "mouth".to_owned()];
+        let features: Value = features.iter().cloned().collect();
+        assert_eq!(features.to_string(), r#"["node", "mouth"]"#);
+    }
+}
+
+#[test]
+#[cfg(feature = "parse")]
+#[cfg(feature = "display")]
+fn string_roundtrip() {
+    Value::from("hello").to_string().parse::<Value>().unwrap();
+}

vendor/toml_edit/src/visit.rs

@@ -0,0 +1,239 @@
+#![allow(missing_docs)]
+
+//! Document tree traversal to walk a shared borrow of a document tree.
+//!
+//! Each method of the [`Visit`] trait is a hook that can be overridden
+//! to customize the behavior when mutating the corresponding type of node.
+//! By default, every method recursively visits the substructure of the
+//! input by invoking the right visitor method of each of its fields.
+//!
+//! ```
+//! # use toml_edit::{Item, ArrayOfTables, Table, Value};
+//!
+//! pub trait Visit<'doc> {
+//!     /* ... */
+//!
+//!     fn visit_item(&mut self, i: &'doc Item) {
+//!         visit_item(self, i);
+//!     }
+//!
+//!     /* ... */
+//!     # fn visit_value(&mut self, i: &'doc Value);
+//!     # fn visit_table(&mut self, i: &'doc Table);
+//!     # fn visit_array_of_tables(&mut self, i: &'doc ArrayOfTables);
+//! }
+//!
+//! pub fn visit_item<'doc, V>(v: &mut V, node: &'doc Item)
+//! where
+//!     V: Visit<'doc> + ?Sized,
+//! {
+//!     match node {
+//!         Item::None => {}
+//!         Item::Value(value) => v.visit_value(value),
+//!         Item::Table(table) => v.visit_table(table),
+//!         Item::ArrayOfTables(array) => v.visit_array_of_tables(array),
+//!     }
+//! }
+//! ```
+//!
+//! The API is modeled after [`syn::visit`](https://docs.rs/syn/1/syn/visit).
+//!
+//! # Examples
+//!
+//! This visitor stores every string in the document.
+//!
+//! ```
+//! # #[cfg(feature = "parse")] {
+//! # use toml_edit::*;
+//! use toml_edit::visit::*;
+//!
+//! #[derive(Default)]
+//! struct StringCollector<'doc> {
+//!     strings: Vec<&'doc str>,
+//! }
+//!
+//! impl<'doc> Visit<'doc> for StringCollector<'doc> {
+//!     fn visit_string(&mut self, node: &'doc Formatted<String>) {
+//!          self.strings.push(node.value().as_str());
+//!     }
+//! }
+//!
+//! let input = r#"
+//! laputa = "sky-castle"
+//! the-force = { value = "surrounds-you" }
+//! "#;
+//!
+//! let mut document: DocumentMut = input.parse().unwrap();
+//! let mut visitor = StringCollector::default();
+//! visitor.visit_document(&document);
+//!
+//! assert_eq!(visitor.strings, vec!["sky-castle", "surrounds-you"]);
+//! # }
+//! ```
+//!
+//! For a more complex example where the visitor has internal state, see `examples/visit.rs`
+//! [on GitHub](https://github.com/toml-rs/toml/blob/main/crates/toml_edit/examples/visit.rs).
+
+use crate::{
+    Array, ArrayOfTables, Datetime, DocumentMut, Formatted, InlineTable, Item, Table, TableLike,
+    Value,
+};
+
+/// Document tree traversal to mutate an exclusive borrow of a document tree in-place.
+///
+/// See the [module documentation](self) for details.
+pub trait Visit<'doc> {
+    fn visit_document(&mut self, node: &'doc DocumentMut) {
+        visit_document(self, node);
+    }
+
+    fn visit_item(&mut self, node: &'doc Item) {
+        visit_item(self, node);
+    }
+
+    fn visit_table(&mut self, node: &'doc Table) {
+        visit_table(self, node);
+    }
+
+    fn visit_inline_table(&mut self, node: &'doc InlineTable) {
+        visit_inline_table(self, node);
+    }
+
+    fn visit_table_like(&mut self, node: &'doc dyn TableLike) {
+        visit_table_like(self, node);
+    }
+
+    fn visit_table_like_kv(&mut self, key: &'doc str, node: &'doc Item) {
+        visit_table_like_kv(self, key, node);
+    }
+
+    fn visit_array(&mut self, node: &'doc Array) {
+        visit_array(self, node);
+    }
+
+    fn visit_array_of_tables(&mut self, node: &'doc ArrayOfTables) {
+        visit_array_of_tables(self, node);
+    }
+
+    fn visit_value(&mut self, node: &'doc Value) {
+        visit_value(self, node);
+    }
+
+    fn visit_boolean(&mut self, node: &'doc Formatted<bool>) {
+        visit_boolean(self, node);
+    }
+
+    fn visit_datetime(&mut self, node: &'doc Formatted<Datetime>) {
+        visit_datetime(self, node);
+    }
+
+    fn visit_float(&mut self, node: &'doc Formatted<f64>) {
+        visit_float(self, node);
+    }
+
+    fn visit_integer(&mut self, node: &'doc Formatted<i64>) {
+        visit_integer(self, node);
+    }
+
+    fn visit_string(&mut self, node: &'doc Formatted<String>) {
+        visit_string(self, node);
+    }
+}
+
+pub fn visit_document<'doc, V>(v: &mut V, node: &'doc DocumentMut)
+where
+    V: Visit<'doc> + ?Sized,
+{
+    v.visit_table(node.as_table());
+}
+
+pub fn visit_item<'doc, V>(v: &mut V, node: &'doc Item)
+where
+    V: Visit<'doc> + ?Sized,
+{
+    match node {
+        Item::None => {}
+        Item::Value(value) => v.visit_value(value),
+        Item::Table(table) => v.visit_table(table),
+        Item::ArrayOfTables(array) => v.visit_array_of_tables(array),
+    }
+}
+
+pub fn visit_table<'doc, V>(v: &mut V, node: &'doc Table)
+where
+    V: Visit<'doc> + ?Sized,
+{
+    v.visit_table_like(node);
+}
+
+pub fn visit_inline_table<'doc, V>(v: &mut V, node: &'doc InlineTable)
+where
+    V: Visit<'doc> + ?Sized,
+{
+    v.visit_table_like(node);
+}
+
+pub fn visit_table_like<'doc, V>(v: &mut V, node: &'doc dyn TableLike)
+where
+    V: Visit<'doc> + ?Sized,
+{
+    for (key, item) in node.iter() {
+        v.visit_table_like_kv(key, item);
+    }
+}
+
+pub fn visit_table_like_kv<'doc, V>(v: &mut V, _key: &'doc str, node: &'doc Item)
+where
+    V: Visit<'doc> + ?Sized,
+{
+    v.visit_item(node);
+}
+
+pub fn visit_array<'doc, V>(v: &mut V, node: &'doc Array)
+where
+    V: Visit<'doc> + ?Sized,
+{
+    for value in node.iter() {
+        v.visit_value(value);
+    }
+}
+
+pub fn visit_array_of_tables<'doc, V>(v: &mut V, node: &'doc ArrayOfTables)
+where
+    V: Visit<'doc> + ?Sized,
+{
+    for table in node.iter() {
+        v.visit_table(table);
+    }
+}
+
+pub fn visit_value<'doc, V>(v: &mut V, node: &'doc Value)
+where
+    V: Visit<'doc> + ?Sized,
+{
+    match node {
+        Value::String(s) => v.visit_string(s),
+        Value::Integer(i) => v.visit_integer(i),
+        Value::Float(f) => v.visit_float(f),
+        Value::Boolean(b) => v.visit_boolean(b),
+        Value::Datetime(dt) => v.visit_datetime(dt),
+        Value::Array(array) => v.visit_array(array),
+        Value::InlineTable(table) => v.visit_inline_table(table),
+    }
+}
+
+macro_rules! empty_visit {
+    ($name: ident, $t: ty) => {
+        fn $name<'doc, V>(_v: &mut V, _node: &'doc $t)
+        where
+            V: Visit<'doc> + ?Sized,
+        {
+        }
+    };
+}
+
+empty_visit!(visit_boolean, Formatted<bool>);
+empty_visit!(visit_datetime, Formatted<Datetime>);
+empty_visit!(visit_float, Formatted<f64>);
+empty_visit!(visit_integer, Formatted<i64>);
+empty_visit!(visit_string, Formatted<String>);

vendor/toml_edit/src/visit_mut.rs

@@ -0,0 +1,256 @@
+#![allow(missing_docs)]
+
+//! Document tree traversal to mutate an exclusive borrow of a document tree in place.
+//!
+//!
+//! Each method of the [`VisitMut`] trait is a hook that can be overridden
+//! to customize the behavior when mutating the corresponding type of node.
+//! By default, every method recursively visits the substructure of the
+//! input by invoking the right visitor method of each of its fields.
+//!
+//! ```
+//! # use toml_edit::{Item, ArrayOfTables, Table, Value};
+//!
+//! pub trait VisitMut {
+//!     /* ... */
+//!
+//!     fn visit_item_mut(&mut self, i: &mut Item) {
+//!         visit_item_mut(self, i);
+//!     }
+//!
+//!     /* ... */
+//!     # fn visit_value_mut(&mut self, i: &mut Value);
+//!     # fn visit_table_mut(&mut self, i: &mut Table);
+//!     # fn visit_array_of_tables_mut(&mut self, i: &mut ArrayOfTables);
+//! }
+//!
+//! pub fn visit_item_mut<V>(v: &mut V, node: &mut Item)
+//! where
+//!     V: VisitMut + ?Sized,
+//! {
+//!     match node {
+//!         Item::None => {}
+//!         Item::Value(value) => v.visit_value_mut(value),
+//!         Item::Table(table) => v.visit_table_mut(table),
+//!         Item::ArrayOfTables(array) => v.visit_array_of_tables_mut(array),
+//!     }
+//! }
+//! ```
+//!
+//! The API is modeled after [`syn::visit_mut`](https://docs.rs/syn/1/syn/visit_mut).
+//!
+//! # Examples
+//!
+//! This visitor replaces every floating point value with its decimal string representation, to
+//! 2 decimal points.
+//!
+//! ```
+//! # #[cfg(feature = "parse")] {
+//! # #[cfg(feature = "display")] {
+//! # use toml_edit::*;
+//! use toml_edit::visit_mut::*;
+//!
+//! struct FloatToString;
+//!
+//! impl VisitMut for FloatToString {
+//!     fn visit_value_mut(&mut self, node: &mut Value) {
+//!         if let Value::Float(f) = node {
+//!             // Convert the float to a string.
+//!             let mut s = Formatted::new(format!("{:.2}", f.value()));
+//!             // Copy over the formatting.
+//!             std::mem::swap(s.decor_mut(), f.decor_mut());
+//!             *node = Value::String(s);
+//!         }
+//!         // Most of the time, you will also need to call the default implementation to recurse
+//!         // further down the document tree.
+//!         visit_value_mut(self, node);
+//!     }
+//! }
+//!
+//! let input = r#"
+//! banana = 3.26
+//! table = { apple = 4.5 }
+//! "#;
+//!
+//! let mut document: DocumentMut = input.parse().unwrap();
+//! let mut visitor = FloatToString;
+//! visitor.visit_document_mut(&mut document);
+//!
+//! let output = r#"
+//! banana = "3.26"
+//! table = { apple = "4.50" }
+//! "#;
+//!
+//! assert_eq!(format!("{}", document), output);
+//! # }
+//! # }
+//! ```
+//!
+//! For a more complex example where the visitor has internal state, see `examples/visit.rs`
+//! [on GitHub](https://github.com/toml-rs/toml/blob/main/crates/toml_edit/examples/visit.rs).
+
+use crate::{
+    Array, ArrayOfTables, Datetime, DocumentMut, Formatted, InlineTable, Item, KeyMut, Table,
+    TableLike, Value,
+};
+
+/// Document tree traversal to mutate an exclusive borrow of a document tree in-place.
+///
+/// See the [module documentation](self) for details.
+pub trait VisitMut {
+    fn visit_document_mut(&mut self, node: &mut DocumentMut) {
+        visit_document_mut(self, node);
+    }
+
+    fn visit_item_mut(&mut self, node: &mut Item) {
+        visit_item_mut(self, node);
+    }
+
+    fn visit_table_mut(&mut self, node: &mut Table) {
+        visit_table_mut(self, node);
+    }
+
+    fn visit_inline_table_mut(&mut self, node: &mut InlineTable) {
+        visit_inline_table_mut(self, node);
+    }
+
+    /// [`visit_table_mut`](Self::visit_table_mut) and
+    /// [`visit_inline_table_mut`](Self::visit_inline_table_mut) both recurse into this method.
+    fn visit_table_like_mut(&mut self, node: &mut dyn TableLike) {
+        visit_table_like_mut(self, node);
+    }
+
+    fn visit_table_like_kv_mut(&mut self, key: KeyMut<'_>, node: &mut Item) {
+        visit_table_like_kv_mut(self, key, node);
+    }
+
+    fn visit_array_mut(&mut self, node: &mut Array) {
+        visit_array_mut(self, node);
+    }
+
+    fn visit_array_of_tables_mut(&mut self, node: &mut ArrayOfTables) {
+        visit_array_of_tables_mut(self, node);
+    }
+
+    fn visit_value_mut(&mut self, node: &mut Value) {
+        visit_value_mut(self, node);
+    }
+
+    fn visit_boolean_mut(&mut self, node: &mut Formatted<bool>) {
+        visit_boolean_mut(self, node);
+    }
+
+    fn visit_datetime_mut(&mut self, node: &mut Formatted<Datetime>) {
+        visit_datetime_mut(self, node);
+    }
+
+    fn visit_float_mut(&mut self, node: &mut Formatted<f64>) {
+        visit_float_mut(self, node);
+    }
+
+    fn visit_integer_mut(&mut self, node: &mut Formatted<i64>) {
+        visit_integer_mut(self, node);
+    }
+
+    fn visit_string_mut(&mut self, node: &mut Formatted<String>) {
+        visit_string_mut(self, node);
+    }
+}
+
+pub fn visit_document_mut<V>(v: &mut V, node: &mut DocumentMut)
+where
+    V: VisitMut + ?Sized,
+{
+    v.visit_table_mut(node.as_table_mut());
+}
+
+pub fn visit_item_mut<V>(v: &mut V, node: &mut Item)
+where
+    V: VisitMut + ?Sized,
+{
+    match node {
+        Item::None => {}
+        Item::Value(value) => v.visit_value_mut(value),
+        Item::Table(table) => v.visit_table_mut(table),
+        Item::ArrayOfTables(array) => v.visit_array_of_tables_mut(array),
+    }
+}
+
+pub fn visit_table_mut<V>(v: &mut V, node: &mut Table)
+where
+    V: VisitMut + ?Sized,
+{
+    v.visit_table_like_mut(node);
+}
+
+pub fn visit_inline_table_mut<V>(v: &mut V, node: &mut InlineTable)
+where
+    V: VisitMut + ?Sized,
+{
+    v.visit_table_like_mut(node);
+}
+
+pub fn visit_table_like_mut<V>(v: &mut V, node: &mut dyn TableLike)
+where
+    V: VisitMut + ?Sized,
+{
+    for (key, item) in node.iter_mut() {
+        v.visit_table_like_kv_mut(key, item);
+    }
+}
+
+pub fn visit_table_like_kv_mut<V>(v: &mut V, _key: KeyMut<'_>, node: &mut Item)
+where
+    V: VisitMut + ?Sized,
+{
+    v.visit_item_mut(node);
+}
+
+pub fn visit_array_mut<V>(v: &mut V, node: &mut Array)
+where
+    V: VisitMut + ?Sized,
+{
+    for value in node.iter_mut() {
+        v.visit_value_mut(value);
+    }
+}
+
+pub fn visit_array_of_tables_mut<V>(v: &mut V, node: &mut ArrayOfTables)
+where
+    V: VisitMut + ?Sized,
+{
+    for table in node.iter_mut() {
+        v.visit_table_mut(table);
+    }
+}
+
+pub fn visit_value_mut<V>(v: &mut V, node: &mut Value)
+where
+    V: VisitMut + ?Sized,
+{
+    match node {
+        Value::String(s) => v.visit_string_mut(s),
+        Value::Integer(i) => v.visit_integer_mut(i),
+        Value::Float(f) => v.visit_float_mut(f),
+        Value::Boolean(b) => v.visit_boolean_mut(b),
+        Value::Datetime(dt) => v.visit_datetime_mut(dt),
+        Value::Array(array) => v.visit_array_mut(array),
+        Value::InlineTable(table) => v.visit_inline_table_mut(table),
+    }
+}
+
+macro_rules! empty_visit_mut {
+    ($name: ident, $t: ty) => {
+        fn $name<V>(_v: &mut V, _node: &mut $t)
+        where
+            V: VisitMut + ?Sized,
+        {
+        }
+    };
+}
+
+empty_visit_mut!(visit_boolean_mut, Formatted<bool>);
+empty_visit_mut!(visit_datetime_mut, Formatted<Datetime>);
+empty_visit_mut!(visit_float_mut, Formatted<f64>);
+empty_visit_mut!(visit_integer_mut, Formatted<i64>);
+empty_visit_mut!(visit_string_mut, Formatted<String>);