From 00545fc51d33a9c71d610cc8da5e779cf29487af Mon Sep 17 00:00:00 2001 From: "Yukihiro \"Matz\" Matsumoto" Date: Fri, 12 Apr 2019 22:52:26 +0900 Subject: The number of local variables should be less than 1024; fix #4370 The `env` stores stack length in a 10 bit field. See `MRB_ENV_STACK_LEN()` macro. --- mrbgems/mruby-compiler/core/codegen.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'mrbgems/mruby-compiler') diff --git a/mrbgems/mruby-compiler/core/codegen.c b/mrbgems/mruby-compiler/core/codegen.c index 927cc3a0f..4bb81f415 100644 --- a/mrbgems/mruby-compiler/core/codegen.c +++ b/mrbgems/mruby-compiler/core/codegen.c @@ -3020,6 +3020,9 @@ scope_finish(codegen_scope *s) mrb_state *mrb = s->mrb; mrb_irep *irep = s->irep; + if (s->nlocals >= 0x3ff) { + codegen_error(s, "too many local variables"); + } irep->flags = 0; if (s->iseq) { irep->iseq = (mrb_code *)codegen_realloc(s, s->iseq, sizeof(mrb_code)*s->pc); -- cgit v1.2.3