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| author | Nobuyoshi Nakada <nobu@ruby-lang.org> | 2019-08-29 22:07:45 +0900 |
|---|---|---|
| committer | Nobuyoshi Nakada <nobu@ruby-lang.org> | 2019-09-06 09:02:12 +0900 |
| commit | 3754e155309ed430250781c616a6e52b54ef511d (patch) | |
| tree | 6bd60f672da679421968e7577363b11b48e58795 /parse.y | |
| parent | 092f31e7e23c0ee04df987f0c0f979d036971804 (diff) | |
| download | ruby-3754e155309ed430250781c616a6e52b54ef511d.tar.gz | |
Warn local variables which conflict with new numbered parameters
Diffstat (limited to 'parse.y')
| -rw-r--r-- | parse.y | 4 |
1 files changed, 4 insertions, 0 deletions
@@ -11652,6 +11652,10 @@ arg_var(struct parser_params *p, ID id) static void local_var(struct parser_params *p, ID id) { + if (id >= idNUMPARAM_0 && id <= idNUMPARAM_9) { + rb_warn1("`_%d' is used as numbered parameter", + WARN_I((int)(id - idNUMPARAM_0))); + } vtable_add(p->lvtbl->vars, id); if (p->lvtbl->used) { vtable_add(p->lvtbl->used, (ID)p->ruby_sourceline); |