feat: implement comments in zero children nodes

packages/autofmt/src/expr.rs

@@ -1,45 +1,23 @@
 //! pretty printer for rsx!
 use std::fmt::{Result, Write};
 
-use crate::Buffer;
+use crate::Writer;
 
-impl Buffer {
+impl Writer {
     pub fn write_raw_expr(&mut self, exp: &syn::Expr) -> Result {
         /*
         We want to normalize the expr to the appropriate indent level.
         */
 
-        // in a perfect world, just fire up the rust pretty printer
-        // pretty_print_rust_code_as_if_it_were_rustfmt()
-
         use syn::spanned::Spanned;
         let placement = exp.span();
         let start = placement.start();
         let end = placement.end();
-        // let num_spaces_desired = (self.indent * 4) as isize;
-
-        // print comments
-        // let mut queued_comments = vec![];
-        // let mut offset = 2;
-        // loop {
-        //     let line = &self.src[start.line - offset];
-        //     if line.trim_start().starts_with("//") {
-        //         queued_comments.push(line);
-        //     } else {
-        //         break;
-        //     }
-
-        //     offset += 1;
-        // }
-        // let had_comments = !queued_comments.is_empty();
-        // for comment in queued_comments.into_iter().rev() {
-        //     writeln!(self.buf, "{}", comment)?;
-        // }
 
         // if the expr is on one line, just write it directly
         if start.line == end.line {
             write!(
-                self.buf,
+                self.out,
                 "{}",
                 &self.src[start.line - 1][start.column - 1..end.column].trim()
             )?;
@@ -50,7 +28,7 @@ impl Buffer {
         // This involves unshifting the first line if it's aligned
         let first_line = &self.src[start.line - 1];
         write!(
-            self.buf,
+            self.out,
             "{}",
             &first_line[start.column - 1..first_line.len()].trim()
         )?;
@@ -66,7 +44,7 @@ impl Buffer {
         };
 
         for (id, line) in self.src[start.line..end.line].iter().enumerate() {
-            writeln!(self.buf)?;
+            writeln!(self.out)?;
             // trim the leading whitespace
             let line = match id {
                 x if x == (end.line - start.line) - 1 => &line[..end.column],
@@ -75,52 +53,17 @@ impl Buffer {
 
             if offset < 0 {
                 for _ in 0..-offset {
-                    write!(self.buf, " ")?;
+                    write!(self.out, " ")?;
                 }
 
-                write!(self.buf, "{}", line)?;
+                write!(self.out, "{}", line)?;
             } else {
                 let offset = offset as usize;
                 let right = &line[offset..];
-                write!(self.buf, "{}", right)?;
+                write!(self.out, "{}", right)?;
             }
         }
 
-        // let first = &self.src[start.line - 1];
-        // let num_spaces_real = first.chars().take_while(|c| c.is_whitespace()).count() as isize;
-        // let offset = num_spaces_real - num_spaces_desired;
-
-        // for (row, line) in self.src[start.line - 1..end.line].iter().enumerate() {
-        //     let line = match row {
-        //         0 => &line[start.column - 1..],
-        //         a if a == (end.line - start.line) => &line[..end.column - 1],
-        //         _ => line,
-        //     };
-
-        //     writeln!(self.buf)?;
-        //     // trim the leading whitespace
-        //     if offset < 0 {
-        //         for _ in 0..-offset {
-        //             write!(self.buf, " ")?;
-        //         }
-
-        //         write!(self.buf, "{}", line)?;
-        //     } else {
-        //         let offset = offset as usize;
-        //         let right = &line[offset..];
-        //         write!(self.buf, "{}", right)?;
-        //     }
-        // }
-
         Ok(())
     }
 }
-
-// :(
-// fn pretty_print_rust_code_as_if_it_were_rustfmt(code: &str) -> String {
-//     let formatted = prettyplease::unparse_expr(exp);
-//     for line in formatted.lines() {
-//         write!(self.buf, "{}", line)?;
-//         self.new_line()?;
-//     }
-// }