rustc: Parse by-reference pattern bindings with the "ref" keyword

4 files changed, 10 insertions, 6 deletions

diff --git a/src/libsyntax/ext/auto_serialize.rs b/src/libsyntax/ext/auto_serialize.rs
index 57b6dc13b8a..90319feb4d2 100644
--- a/src/libsyntax/ext/auto_serialize.rs
+++ b/src/libsyntax/ext/auto_serialize.rs
@@ -228,7 +228,7 @@ impl helpers of ext_ctxt_helpers for ext_ctxt {
         let path = @{span: span, global: false, idents: ~[nm],
                      rp: none, types: ~[]};
         @{id: self.next_id(),
-          node: ast::pat_ident(path, none),
+          node: ast::pat_ident(ast::bind_by_ref, path, none),
           span: span}
     }
 
@@ -834,7 +834,9 @@ fn ser_enum(cx: ext_ctxt, tps: ser_tps_map, e_name: ast::ident,
             // Generate pattern var(v1, v2, v3)
             |pats| {
                 if vec::is_empty(pats) {
-                    ast::pat_ident(cx.path(v_span, ~[v_name]), none)
+                    ast::pat_ident(ast::bind_by_ref,
+                                   cx.path(v_span, ~[v_name]),
+                                   none)
                 } else {
                     ast::pat_enum(cx.path(v_span, ~[v_name]), some(pats))
                 }
diff --git a/src/libsyntax/ext/pipes/ast_builder.rs b/src/libsyntax/ext/pipes/ast_builder.rs
index bb5b35233cd..89c53d16ac5 100644
--- a/src/libsyntax/ext/pipes/ast_builder.rs
+++ b/src/libsyntax/ext/pipes/ast_builder.rs
@@ -116,8 +116,10 @@ impl ast_builder of ext_ctxt_ast_builder for ext_ctxt {
             @{node: {is_mutbl: false,
                      ty: self.ty_infer(),
                      pat: @{id: self.next_id(),
-                            node: ast::pat_ident(
-                                path(ident, self.empty_span()), none),
+                            node: ast::pat_ident(ast::bind_by_ref,
+                                                 path(ident,
+                                                      self.empty_span()),
+                                                 none),
                             span: self.empty_span()},
                      init: some({op: ast::init_move,
                                  expr: e}),
diff --git a/src/libsyntax/ext/qquote.rs b/src/libsyntax/ext/qquote.rs
index 9dcb4da14fa..94753ea88e0 100644
--- a/src/libsyntax/ext/qquote.rs
+++ b/src/libsyntax/ext/qquote.rs
@@ -170,7 +170,7 @@ fn parse_crate(p: parser) -> @ast::crate { p.parse_crate_mod(~[]) }
 fn parse_ty(p: parser) -> @ast::ty { p.parse_ty(false) }
 fn parse_stmt(p: parser) -> @ast::stmt { p.parse_stmt(~[]) }
 fn parse_expr(p: parser) -> @ast::expr { p.parse_expr() }
-fn parse_pat(p: parser) -> @ast::pat { p.parse_pat() }
+fn parse_pat(p: parser) -> @ast::pat { p.parse_pat(true) }
 
 fn parse_item(p: parser) -> @ast::item {
     alt p.parse_item(~[], ast::public) {
diff --git a/src/libsyntax/ext/tt/earley_parser.rs b/src/libsyntax/ext/tt/earley_parser.rs
index c7a2713c26e..bd8fcf552da 100644
--- a/src/libsyntax/ext/tt/earley_parser.rs
+++ b/src/libsyntax/ext/tt/earley_parser.rs
@@ -326,7 +326,7 @@ fn parse_nt(p: parser, name: ~str) -> nonterminal {
       }}
       ~"block" { token::nt_block(p.parse_block()) }
       ~"stmt" { token::nt_stmt(p.parse_stmt(~[])) }
-      ~"pat" { token::nt_pat(p.parse_pat()) }
+      ~"pat" { token::nt_pat(p.parse_pat(true)) }
       ~"expr" { token::nt_expr(p.parse_expr()) }
       ~"ty" { token::nt_ty(p.parse_ty(false /* no need to disambiguate*/)) }
       // this could be handled like a token, since it is one