From 4428ce6050efb89f5777f9ec4f07eb913591b7a3 Mon Sep 17 00:00:00 2001 From: "Yukihiro \"Matz\" Matsumoto" Date: Mon, 29 Mar 2021 22:43:43 +0900 Subject: codegen.c: `ainfo` may be negative. When argument information is not available. So it should not happen for `yield` (error). In contrast, the error from `super` should be handled in run time (ignored). --- mrbgems/mruby-compiler/core/codegen.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'mrbgems/mruby-compiler/core/codegen.c') diff --git a/mrbgems/mruby-compiler/core/codegen.c b/mrbgems/mruby-compiler/core/codegen.c index 857496f00..a5d9a4b8e 100644 --- a/mrbgems/mruby-compiler/core/codegen.c +++ b/mrbgems/mruby-compiler/core/codegen.c @@ -2321,7 +2321,9 @@ codegen(codegen_scope *s, node *tree, int val) s2 = s2->prev; if (!s2) break; } - if (s2) ainfo = s2->ainfo; + if (s2 && s2->ainfo > 0) { + ainfo = s2->ainfo; + } genop_2S(s, OP_ARGARY, cursp(), (ainfo<<4)|(lv & 0xf)); push(); push(); pop(); /* ARGARY pushes two values */ if (tree && tree->cdr) { @@ -2361,7 +2363,10 @@ codegen(codegen_scope *s, node *tree, int val) s2 = s2->prev; if (!s2) break; } - if (s2) ainfo = s2->ainfo; + if (s2) { + ainfo = s2->ainfo; + if (ainfo < 0) codegen_error(s, "invalid yield"); + } push(); if (tree) { n = gen_values(s, tree, VAL, 0); -- cgit v1.2.3