Merge branch 'many_optional_attributes' into pr/atty303/1349

packages/autofmt/src/element.rs

@@ -50,6 +50,7 @@ impl Writer<'_> {
             children,
             brace,
             extra_attributes,
+            ..
         } = el;
 
         /*
@@ -210,12 +211,34 @@ impl Writer<'_> {
         Ok(())
     }
 
-    fn write_attribute(&mut self, attr: &ElementAttrNamed) -> Result {
-        match &attr.attr {
-            ElementAttr::AttrText { name, value } => {
-                write!(self.out, "{name}: {value}", value = ifmt_to_string(value))?;
+    fn write_attribute_name(&mut self, attr: &ElementAttrName) -> Result {
+        match attr {
+            ElementAttrName::BuiltIn(name) => {
+                write!(self.out, "{}", name)?;
             }
-            ElementAttr::AttrExpression { name, value } => {
+            ElementAttrName::Custom(name) => {
+                write!(self.out, "{}", name.to_token_stream())?;
+            }
+        }
+
+        Ok(())
+    }
+
+    fn write_attribute_value(&mut self, value: &ElementAttrValue) -> Result {
+        match value {
+            ElementAttrValue::AttrOptionalExpr { condition, value } => {
+                write!(
+                    self.out,
+                    "if {condition} {{ ",
+                    condition = prettyplease::unparse_expr(condition),
+                )?;
+                self.write_attribute_value(value)?;
+                write!(self.out, " }}")?;
+            }
+            ElementAttrValue::AttrLiteral(value) => {
+                write!(self.out, "{value}", value = ifmt_to_string(value))?;
+            }
+            ElementAttrValue::AttrExpr(value) => {
                 let out = prettyplease::unparse_expr(value);
                 let mut lines = out.split('\n').peekable();
                 let first = lines.next().unwrap();
@@ -223,9 +246,9 @@ impl Writer<'_> {
                 // a one-liner for whatever reason
                 // Does not need a new line
                 if lines.peek().is_none() {
-                    write!(self.out, "{name}: {first}")?;
+                    write!(self.out, "{first}")?;
                 } else {
-                    writeln!(self.out, "{name}: {first}")?;
+                    writeln!(self.out, "{first}")?;
 
                     while let Some(line) = lines.next() {
                         self.out.indented_tab()?;
@@ -238,22 +261,7 @@ impl Writer<'_> {
                     }
                 }
             }
-
-            ElementAttr::CustomAttrText { name, value } => {
-                write!(
-                    self.out,
-                    "{name}: {value}",
-                    name = name.to_token_stream(),
-                    value = ifmt_to_string(value)
-                )?;
-            }
-
-            ElementAttr::CustomAttrExpression { name, value } => {
-                let out = prettyplease::unparse_expr(value);
-                write!(self.out, "{}: {}", name.to_token_stream(), out)?;
-            }
-
-            ElementAttr::EventTokens { name, tokens } => {
+            ElementAttrValue::EventTokens(tokens) => {
                 let out = self.retrieve_formatted_expr(tokens).to_string();
 
                 let mut lines = out.split('\n').peekable();
@@ -262,9 +270,9 @@ impl Writer<'_> {
                 // a one-liner for whatever reason
                 // Does not need a new line
                 if lines.peek().is_none() {
-                    write!(self.out, "{name}: {first}")?;
+                    write!(self.out, "{first}")?;
                 } else {
-                    writeln!(self.out, "{name}: {first}")?;
+                    writeln!(self.out, "{first}")?;
 
                     while let Some(line) = lines.next() {
                         self.out.indented_tab()?;
@@ -282,6 +290,14 @@ impl Writer<'_> {
         Ok(())
     }
 
+    fn write_attribute(&mut self, attr: &ElementAttrNamed) -> Result {
+        self.write_attribute_name(&attr.attr.name)?;
+        write!(self.out, ": ")?;
+        self.write_attribute_value(&attr.attr.value)?;
+
+        Ok(())
+    }
+
     // make sure the comments are actually relevant to this element.
     // test by making sure this element is the primary element on this line
     pub fn current_span_is_primary(&self, location: Span) -> bool {

packages/autofmt/src/writer.rs

@@ -1,4 +1,4 @@
-use dioxus_rsx::{BodyNode, ElementAttr, ElementAttrNamed, ForLoop};
+use dioxus_rsx::{BodyNode, ElementAttrNamed, ElementAttrValue, ForLoop};
 use proc_macro2::{LineColumn, Span};
 use quote::ToTokens;
 use std::{
@@ -132,6 +132,39 @@ impl<'a> Writer<'a> {
         Ok(())
     }
 
+    pub(crate) fn attr_value_len(&mut self, value: &ElementAttrValue) -> usize {
+        match value {
+            ElementAttrValue::AttrOptionalExpr { condition, value } => {
+                let condition_len = self.retrieve_formatted_expr(condition).len();
+                let value_len = self.attr_value_len(value);
+
+                condition_len + value_len + 6
+            }
+            ElementAttrValue::AttrLiteral(lit) => ifmt_to_string(lit).len(),
+            ElementAttrValue::AttrExpr(expr) => expr.span().line_length(),
+            ElementAttrValue::EventTokens(tokens) => {
+                let location = Location::new(tokens.span().start());
+
+                let len = if let std::collections::hash_map::Entry::Vacant(e) =
+                    self.cached_formats.entry(location)
+                {
+                    let formatted = prettyplease::unparse_expr(tokens);
+                    let len = if formatted.contains('\n') {
+                        10000
+                    } else {
+                        formatted.len()
+                    };
+                    e.insert(formatted);
+                    len
+                } else {
+                    self.cached_formats[&location].len()
+                };
+
+                len
+            }
+        }
+    }
+
     pub(crate) fn is_short_attrs(&mut self, attributes: &[ElementAttrNamed]) -> usize {
         let mut total = 0;
 
@@ -146,40 +179,17 @@ impl<'a> Writer<'a> {
                 }
             }
 
-            total += match &attr.attr {
-                ElementAttr::AttrText { value, name } => {
-                    ifmt_to_string(value).len() + name.span().line_length() + 6
-                }
-                ElementAttr::AttrExpression { name, value } => {
-                    value.span().line_length() + name.span().line_length() + 6
-                }
-                ElementAttr::CustomAttrText { value, name } => {
-                    ifmt_to_string(value).len() + name.to_token_stream().to_string().len() + 6
-                }
-                ElementAttr::CustomAttrExpression { name, value } => {
-                    name.to_token_stream().to_string().len() + value.span().line_length() + 6
-                }
-                ElementAttr::EventTokens { tokens, name } => {
-                    let location = Location::new(tokens.span().start());
-
-                    let len = if let std::collections::hash_map::Entry::Vacant(e) =
-                        self.cached_formats.entry(location)
-                    {
-                        let formatted = prettyplease::unparse_expr(tokens);
-                        let len = if formatted.contains('\n') {
-                            10000
-                        } else {
-                            formatted.len()
-                        };
-                        e.insert(formatted);
-                        len
-                    } else {
-                        self.cached_formats[&location].len()
-                    };
-
-                    len + name.span().line_length() + 6
+            total += match &attr.attr.name {
+                dioxus_rsx::ElementAttrName::BuiltIn(name) => {
+                    let name = name.to_string();
+                    name.len()
                 }
+                dioxus_rsx::ElementAttrName::Custom(name) => name.value().len() + 2,
             };
+
+            total += self.attr_value_len(&attr.attr.value);
+
+            total += 6;
         }
 
         total
@@ -218,7 +228,7 @@ impl<'a> Writer<'a> {
     }
 }
 
-trait SpanLength {
+pub(crate) trait SpanLength {
     fn line_length(&self) -> usize;
 }
 impl SpanLength for Span {