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vm_backtrace.c: fix unknown ID name

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* vm_backtrace.c (id2str): adapt rb_id2str which returns 0 on
  unknown ID to return Qnil, since oldbt_arg functions expect Qnil
  on unknown method names.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47951 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2014-10-15 14:37:54 +00:00
parent 2d1578804b
commit 2a61ff2e65
1 changed files with 9 additions and 0 deletions
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9
vm_backtrace.c
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@ -23,6 +23,15 @@ static VALUE rb_cBacktraceLocation;
extern VALUE ruby_engine_name;
static VALUE
id2str(ID id)
{
VALUE str = rb_id2str(id);
if (!id) return Qnil;
return str;
}
#define rb_id2str(id) id2str(id)
inline static int
calc_lineno(const rb_iseq_t *iseq, const VALUE *pc)
{