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mruby-eval/eval.c (f_instance_eval): skip mrb_value to get singleton

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Use mrb_singleton_class_ptr() instead of mrb_instance_class(), because
the former returns NULL, when the latter raises error for immediate
objects.

```
1.instance_eval <<END
  def foo
    :foo
  end
END
```
This commit is contained in:
Yukihiro "Matz" Matsumoto
2022-12-13 10:51:44 +09:00
parent 3bd2c56dae
commit ddefcea151
1 changed files with 4 additions and 4 deletions
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mrbgems/mruby-eval/src/eval.c
+4 -4
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@@ -177,15 +177,15 @@ f_instance_eval(mrb_state *mrb, mrb_value self)
mrb_int len;
const char *file = NULL;
mrb_int line = 1;
mrb_value cv;
struct RClass *c;
struct RProc *proc;
mrb_get_args(mrb, "s|zi", &s, &len, &file, &line);
cv = mrb_singleton_class(mrb, self);
c = mrb_singleton_class_ptr(mrb, self);
proc = create_proc_from_string(mrb, s, len, mrb_nil_value(), file, line);
MRB_PROC_SET_TARGET_CLASS(proc, mrb_class_ptr(cv));
MRB_PROC_SET_TARGET_CLASS(proc, c);
mrb_assert(!MRB_PROC_CFUNC_P(proc));
mrb_vm_ci_target_class_set(mrb->c->ci, mrb_class_ptr(cv));
mrb_vm_ci_target_class_set(mrb->c->ci, c);
return exec_irep(mrb, self, proc);
}
else {