nobu	2014-05-01 22:52:36 +0900 (Thu, 01 May 2014)

  New Revision: 45777

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=45777

  Log:
    parse.y: abort at inappropriate symbol
    
    * parse.y (must_be_dynamic_symbol): abort if inappropriate symbol
      is given, which should never happen.

  Modified files:
    trunk/parse.y
Index: parse.y
===================================================================
--- parse.y	(revision 45776)
+++ parse.y	(revision 45777)
@@ -10457,12 +10457,13 @@ static ID intern_str(VALUE str); https://github.com/ruby/ruby/blob/trunk/parse.y#L10457
 static void
 must_be_dynamic_symbol(VALUE x)
 {
-    if (STATIC_SYM_P(x)) {
-	rb_raise(rb_eTypeError, "wrong argument %+"PRIsVALUE" (expected dynamic Symbol)", x);
+    st_data_t data;
+    if (STATIC_SYM_P(x) && lookup_id_str(RSHIFT((unsigned long)(x),RUBY_SPECIAL_SHIFT), &data)) {
+	rb_bug("wrong argument :%s (inappropriate Symbol)", RSTRING_PTR((VALUE)data));
     }
     if (SPECIAL_CONST_P(x) || BUILTIN_TYPE(x) != T_SYMBOL) {
-	rb_raise(rb_eTypeError, "wrong argument type %s (expected Symbol)",
-		 rb_builtin_class_name(x));
+	rb_bug("wrong argument type %s (expected Symbol)",
+	       rb_builtin_class_name(x));
     }
 }
 

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