wip: refactor out translation into its own crate

packages/rsx/src/comments.rs

@@ -0,0 +1,24 @@
+use std::hash::Hash;
+
+use proc_macro2::Span;
+
+// A form of whitespace
+#[derive(Debug, Clone)]
+pub struct UserComment {
+    pub span: Span,
+    pub comment: String,
+}
+
+impl PartialEq for UserComment {
+    fn eq(&self, other: &Self) -> bool {
+        self.comment == other.comment
+    }
+}
+
+impl Eq for UserComment {}
+
+impl Hash for UserComment {
+    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+        self.comment.hash(state);
+    }
+}

packages/rsx/src/lib.rs

@@ -13,6 +13,7 @@
 
 #[macro_use]
 mod errors;
+mod comments;
 mod component;
 mod element;
 pub mod hot_reload;
@@ -296,6 +297,8 @@ impl DynamicMapping {
 
             BodyNode::Text(text) if text.is_static() => {}
 
+            BodyNode::Comment(_) => {}
+
             BodyNode::RawExpr(_)
             | BodyNode::Text(_)
             | BodyNode::ForLoop(_)

packages/rsx/src/node.rs

@@ -1,3 +1,5 @@
+use crate::comments::UserComment;
+
 use super::*;
 
 use proc_macro2::{Span, TokenStream as TokenStream2};
@@ -16,6 +18,17 @@ Parse
 -> component()
 -> "text {with_args}"
 -> (0..10).map(|f| rsx!("asd")),  // <--- notice the comma - must be a complete expr
+-> // some comment here (no support for slash asterisk comments - those get deleted completely)
+
+
+
+div {
+    // Comment
+    div { // a comment here because it shares the line
+
+    }
+}
+
 */
 #[derive(PartialEq, Eq, Clone, Debug, Hash)]
 pub enum BodyNode {
@@ -25,6 +38,7 @@ pub enum BodyNode {
     IfChain(ExprIf),
     Text(IfmtInput),
     RawExpr(Expr),
+    Comment(UserComment),
 }
 
 impl BodyNode {
@@ -40,6 +54,7 @@ impl BodyNode {
             BodyNode::RawExpr(exp) => exp.span(),
             BodyNode::ForLoop(fl) => fl.for_token.span(),
             BodyNode::IfChain(f) => f.if_token.span(),
+            BodyNode::Comment(c) => c.span,
         }
     }
 }
@@ -128,6 +143,7 @@ impl Parse for BodyNode {
 impl ToTokens for BodyNode {
     fn to_tokens(&self, tokens: &mut TokenStream2) {
         match &self {
+            BodyNode::Comment(_) => {}
             BodyNode::Element(el) => el.to_tokens(tokens),
             BodyNode::Component(comp) => comp.to_tokens(tokens),
             BodyNode::Text(txt) => tokens.append_all(quote! {