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check ttype before object allocation; fix #3294

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This commit is contained in:
Yukihiro "Matz" Matsumoto
2016-11-30 03:38:55 +09:00
parent 27d166d4e2
commit 630733f346
1 changed files with 11 additions and 0 deletions
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src/gc.c
+11
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@@ -479,6 +479,17 @@ mrb_obj_alloc(mrb_state *mrb, enum mrb_vtype ttype, struct RClass *cls)
static const RVALUE RVALUE_zero = { { { MRB_TT_FALSE } } };
mrb_gc *gc = &mrb->gc;
if (cls) {
enum mrb_vtype tt = MRB_INSTANCE_TT(cls);
if (tt != MRB_TT_FALSE &&
ttype != MRB_TT_SCLASS &&
ttype != MRB_TT_ICLASS &&
ttype != MRB_TT_ENV &&
ttype != tt) {
mrb_raisef(mrb, E_TYPE_ERROR, "allocation failure of %S", mrb_obj_value(cls));
}
}
#ifdef MRB_GC_STRESS
mrb_full_gc(mrb);
#endif