wip: reduce warnings

packages/core/src/scope.rs

@@ -328,3 +328,110 @@ impl Scope {
         }
     }
 }
+
+/// render the scope to a string using the rsx! syntax
+pub(crate) struct ScopeRenderer<'a> {
+    pub skip_components: bool,
+    pub show_fragments: bool,
+    pub _scope: &'a Scope,
+    pub _pre_render: bool,
+    pub _newline: bool,
+    pub _indent: bool,
+    pub _max_depth: usize,
+}
+
+// this is more or less a debug tool, but it'll render the entire tree to the terminal
+impl<'a> ScopeRenderer<'a> {
+    pub fn render(
+        &self,
+        vdom: &VirtualDom,
+        node: &VNode,
+        f: &mut std::fmt::Formatter,
+        il: u16,
+    ) -> std::fmt::Result {
+        const INDENT: &str = "    ";
+        let write_indent = |_f: &mut std::fmt::Formatter, le| {
+            for _ in 0..le {
+                write!(_f, "{}", INDENT).unwrap();
+            }
+        };
+
+        match &node {
+            VNode::Text(text) => {
+                write_indent(f, il);
+                write!(f, "\"{}\"\n", text.text)?
+            }
+            VNode::Anchor(anchor) => {
+                write_indent(f, il);
+                write!(f, "Anchor {{}}\n")?;
+            }
+            VNode::Element(el) => {
+                write_indent(f, il);
+                write!(f, "{} {{\n", el.tag_name)?;
+                // write!(f, "element: {}", el.tag_name)?;
+                let mut attr_iter = el.attributes.iter().peekable();
+
+                while let Some(attr) = attr_iter.next() {
+                    match attr.namespace {
+                        None => {
+                            //
+                            write_indent(f, il + 1);
+                            write!(f, "{}: \"{}\"\n", attr.name, attr.value)?
+                        }
+
+                        Some(ns) => {
+                            // write the opening tag
+                            write_indent(f, il + 1);
+                            write!(f, " {}:\"", ns)?;
+                            let mut cur_ns_el = attr;
+                            'ns_parse: loop {
+                                write!(f, "{}:{};", cur_ns_el.name, cur_ns_el.value)?;
+                                match attr_iter.peek() {
+                                    Some(next_attr) if next_attr.namespace == Some(ns) => {
+                                        cur_ns_el = attr_iter.next().unwrap();
+                                    }
+                                    _ => break 'ns_parse,
+                                }
+                            }
+                            // write the closing tag
+                            write!(f, "\"")?;
+                        }
+                    }
+                }
+
+                for child in el.children {
+                    self.render(vdom, child, f, il + 1)?;
+                }
+                write_indent(f, il);
+
+                write!(f, "}}\n")?;
+            }
+            VNode::Fragment(frag) => {
+                if self.show_fragments {
+                    write_indent(f, il);
+                    write!(f, "Fragment {{\n")?;
+                    for child in frag.children {
+                        self.render(vdom, child, f, il + 1)?;
+                    }
+                    write_indent(f, il);
+                    write!(f, "}}\n")?;
+                } else {
+                    for child in frag.children {
+                        self.render(vdom, child, f, il)?;
+                    }
+                }
+            }
+            VNode::Component(vcomp) => {
+                let idx = vcomp.associated_scope.get().unwrap();
+                if !self.skip_components {
+                    let new_node = vdom.get_scope(idx).unwrap().root_node();
+                    self.render(vdom, new_node, f, il)?;
+                }
+            }
+            VNode::Suspended { .. } => {
+                // we can't do anything with suspended nodes
+            }
+        }
+        Ok(())
+    }
+}