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| author | Graydon Hoare <[email protected]> | 2011-02-10 19:13:47 -0800 |
|---|---|---|
| committer | Graydon Hoare <[email protected]> | 2011-02-10 19:13:47 -0800 |
| commit | f951b52e91c5c0487ad4d3a5454b193f15146d6a (patch) | |
| tree | d11a5f229b8523d768318cb164120ca7b73f26a8 | |
| parent | Add alt-pattern-lit.rs test. (diff) | |
| download | rust-f951b52e91c5c0487ad4d3a5454b193f15146d6a.tar.xz rust-f951b52e91c5c0487ad4d3a5454b193f15146d6a.zip | |
Add support to pat_lit to fold.
| -rw-r--r-- | src/comp/middle/fold.rs | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/comp/middle/fold.rs b/src/comp/middle/fold.rs index 9194f734..5930ba75 100644 --- a/src/comp/middle/fold.rs +++ b/src/comp/middle/fold.rs @@ -161,6 +161,9 @@ type ast_fold[ENV] = ann a) -> @pat) fold_pat_wild, (fn(&ENV e, &span sp, + @ast.lit lit, ann a) -> @pat) fold_pat_lit, + + (fn(&ENV e, &span sp, ident i, def_id did, ann a) -> @pat) fold_pat_bind, (fn(&ENV e, &span sp, @@ -421,6 +424,9 @@ fn fold_pat[ENV](&ENV env, ast_fold[ENV] fld, @ast.pat p) -> @ast.pat { alt (p.node) { case (ast.pat_wild(?t)) { ret fld.fold_pat_wild(env_, p.span, t); } + case (ast.pat_lit(?lt, ?t)) { + ret fld.fold_pat_lit(env_, p.span, lt, t); + } case (ast.pat_bind(?id, ?did, ?t)) { ret fld.fold_pat_bind(env_, p.span, id, did, t); } @@ -1122,6 +1128,10 @@ fn identity_fold_pat_wild[ENV](&ENV e, &span sp, ann a) -> @pat { ret @respan(sp, ast.pat_wild(a)); } +fn identity_fold_pat_lit[ENV](&ENV e, &span sp, @ast.lit lit, ann a) -> @pat { + ret @respan(sp, ast.pat_lit(lit, a)); +} + fn identity_fold_pat_bind[ENV](&ENV e, &span sp, ident i, def_id did, ann a) -> @pat { ret @respan(sp, ast.pat_bind(i, did, a)); @@ -1373,6 +1383,7 @@ fn new_identity_fold[ENV]() -> ast_fold[ENV] { fold_decl_item = bind identity_fold_decl_item[ENV](_,_,_), fold_pat_wild = bind identity_fold_pat_wild[ENV](_,_,_), + fold_pat_lit = bind identity_fold_pat_lit[ENV](_,_,_,_), fold_pat_bind = bind identity_fold_pat_bind[ENV](_,_,_,_,_), fold_pat_tag = bind identity_fold_pat_tag[ENV](_,_,_,_,_,_), |