commit b4a05c3621964bb2d5d8e9bf9ccb651aebf4f7ff
author David Tolnay <dtolnay@gmail.com> Wed Dec 30 15:37:01 2020 -0800
committer David Tolnay <dtolnay@gmail.com> Wed Dec 30 15:46:47 2020 -0800
tree 99cbffdc2979e86988366253903bb9cac36f75cf
parent 0bdabfdc98d73df7d26c94efcc3e61b62e111fb7

Preserve doc attributes on struct fields

syntax/impls.rs

diff --git a/syntax/impls.rs b/syntax/impls.rs
index c7e1a2c..624a64d 100644
--- a/syntax/impls.rs
+++ b/syntax/impls.rs
@@ -297,11 +297,13 @@
 impl PartialEq for Var {
     fn eq(&self, other: &Var) -> bool {
         let Var {
+            doc: _,
             visibility: _,
             ident,
             ty,
         } = self;
         let Var {
+            doc: _,
             visibility: _,
             ident: ident2,
             ty: ty2,
@@ -313,6 +315,7 @@
 impl Hash for Var {
     fn hash<H: Hasher>(&self, state: &mut H) {
         let Var {
+            doc: _,
             visibility: _,
             ident,
             ty,

syntax/mod.rs

diff --git a/syntax/mod.rs b/syntax/mod.rs
index f6bdf72..092f403 100644
--- a/syntax/mod.rs
+++ b/syntax/mod.rs
@@ -150,6 +150,7 @@
 }
 
 pub struct Var {
+    pub doc: Doc,
     pub visibility: Token![pub],
     pub ident: Ident,
     pub ty: Type,

syntax/parse.rs

diff --git a/syntax/parse.rs b/syntax/parse.rs
index 4bfabcd..3d970d8 100644
--- a/syntax/parse.rs
+++ b/syntax/parse.rs
@@ -97,6 +97,15 @@
     let mut fields = Vec::new();
     for field in named_fields.named {
         let ident = field.ident.unwrap();
+        let mut doc = Doc::new();
+        attrs::parse(
+            cx,
+            &field.attrs,
+            attrs::Parser {
+                doc: Some(&mut doc),
+                ..Default::default()
+            },
+        );
         let ty = match parse_type(&field.ty) {
             Ok(ty) => ty,
             Err(err) => {
@@ -111,6 +120,7 @@
             Visibility::Inherited => ident.span(),
         });
         fields.push(Var {
+            doc,
             visibility,
             ident,
             ty,
@@ -527,8 +537,10 @@
                 };
                 let ty = parse_type(&arg.ty)?;
                 if ident != "self" {
+                    let doc = Doc::new();
                     let visibility = Token![pub](ident.span());
                     args.push_value(Var {
+                        doc,
                         visibility,
                         ident,
                         ty,
@@ -1098,8 +1110,10 @@
                 Some(ident) => ident.0.clone(),
                 None => format_ident!("arg{}", i),
             };
+            let doc = Doc::new();
             let visibility = Token![pub](ident.span());
             Ok(Var {
+                doc,
                 visibility,
                 ident,
                 ty,