Comments only: annotate FIXMEs

src/libstd/par.rs

@@ -39,7 +39,7 @@ fn map_slices<A: copy send, B: copy send>(
         log(info, "spawning tasks");
         while base < len {
             let end = uint::min(len, base + items_per_task);
-            // FIXME: why is the ::<A, ()> annotation required here?
+            // FIXME: why is the ::<A, ()> annotation required here? (#2617)
             vec::unpack_slice::<A, ()>(xs) {|p, _len|
                 let f = f();
                 futures += [future::spawn() {|copy base|

src/libsyntax/ast_map.rs

@@ -9,6 +9,7 @@ import diagnostic::span_handler;
 enum path_elt { path_mod(ident), path_name(ident) }
 type path = [path_elt];
 
+/* FIXMEs that say "bad" are as per #2543 */
 fn path_to_str_with_sep(p: path, sep: str) -> str {
     let strs = vec::map(p) {|e|
         alt e {
@@ -291,6 +292,7 @@ fn node_id_to_str(map: map, id: node_id) -> str {
         #fmt["expr %s (id=%?)",
              pprust::expr_to_str(expr), id]
       }
+      // FIXMEs are as per #2410
       some(node_export(_, path)) {
         #fmt["export %s (id=%?)", // FIXME: add more info here
              path_to_str(*path), id]

src/libsyntax/ast_util.rs

@@ -24,7 +24,7 @@ pure fn dummy_sp() -> span { ret mk_sp(0u, 0u); }
 pure fn path_name(p: @path) -> str { path_name_i(p.idents) }
 
 pure fn path_name_i(idents: [ident]) -> str {
-    // FIXME: Bad copies
+    // FIXME: Bad copies (#2543 -- same for everything else that says "bad")
     str::connect(idents.map({|i|*i}), "::")
 }
 

src/libsyntax/attr.rs

@@ -88,6 +88,7 @@ fn get_attr_name(attr: ast::attribute) -> ast::ident {
     get_meta_item_name(@attr.node.value)
 }
 
+// All "bad" FIXME copies are as per #2543
 fn get_meta_item_name(meta: @ast::meta_item) -> ast::ident {
     alt meta.node {
       ast::meta_word(n) { /* FIXME bad */ copy n }
@@ -372,7 +373,7 @@ fn require_unique_names(diagnostic: span_handler,
     for metas.each {|meta|
         let name = get_meta_item_name(meta);
 
-        // FIXME: How do I silence the warnings? --pcw
+        // FIXME: How do I silence the warnings? --pcw (#2619)
         if map.contains_key(*name) {
             diagnostic.span_fatal(meta.span,
                                   #fmt["duplicate meta item `%s`", *name]);