ko1	2017-11-27 09:43:23 +0900 (Mon, 27 Nov 2017)

  New Revision: 60915

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=60915

  Log:
    Relax `rb_bug()` condition.
    
    * iseq.c (rb_iseq_trace_set): simply return immediately if
      ISeq::compile_data is available. Not sure why this state
      is allowed, but exception during compile (or `ISeq::load`)
      can make such states.

  Modified files:
    trunk/iseq.c
Index: iseq.c
===================================================================
--- iseq.c	(revision 60914)
+++ iseq.c	(revision 60915)
@@ -2327,6 +2327,10 @@ rb_iseq_trace_set(const rb_iseq_t *iseq, https://github.com/ruby/ruby/blob/trunk/iseq.c#L2327
     if (iseq->aux.trace_events == turnon_events) {
 	return;
     }
+    if (iseq->flags & ISEQ_USE_COMPILE_DATA) {
+	/* this is building ISeq */
+	return;
+    }
     else {
 	unsigned int i;
 	VALUE *iseq_encoded = (VALUE *)iseq->body->iseq_encoded;
@@ -2336,9 +2340,6 @@ rb_iseq_trace_set(const rb_iseq_t *iseq, https://github.com/ruby/ruby/blob/trunk/iseq.c#L2340
 #else
 	const VALUE *code = iseq->body->iseq_encoded;
 #endif
-	if (iseq->flags & ISEQ_USE_COMPILE_DATA) {
-	    rb_bug("ISEQ_USE_COMPILE_DATA should not be enabled: %s:%d\n", RSTRING_PTR(rb_iseq_path(iseq)), FIX2INT(rb_iseq_first_lineno(iseq)));
-	}
 	((rb_iseq_t *)iseq)->aux.trace_events = turnon_events;
 
 	for (i=0; i<iseq->body->iseq_size;) {

--
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