parse.y: fail if yyerror

* parse.y (assignable_gen): fail if yyerror occurred.  fix a bug in
  r36973.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37251 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 8 insertions, 7 deletions

diff --git a/parse.y b/parse.y
index db24e1564b..7eaab6b1b8 100644
--- a/parse.y
+++ b/parse.y
@@ -8468,25 +8468,25 @@ assignable_gen(struct parser_params *parser, ID id, NODE *val)
     switch (id) {
       case keyword_self:
 	yyerror("Can't change the value of self");
-	break;
+	goto error;
       case keyword_nil:
 	yyerror("Can't assign to nil");
-	break;
+	goto error;
       case keyword_true:
 	yyerror("Can't assign to true");
-	break;
+	goto error;
       case keyword_false:
 	yyerror("Can't assign to false");
-	break;
+	goto error;
       case keyword__FILE__:
 	yyerror("Can't assign to __FILE__");
-	break;
+	goto error;
       case keyword__LINE__:
 	yyerror("Can't assign to __LINE__");
-	break;
+	goto error;
       case keyword__ENCODING__:
 	yyerror("Can't assign to __ENCODING__");
-	break;
+	goto error;
     }
     switch (id_type(id)) {
       case ID_LOCAL:
@@ -8526,6 +8526,7 @@ assignable_gen(struct parser_params *parser, ID id, NODE *val)
       default:
 	compile_error(PARSER_ARG "identifier %s is not valid to set", rb_id2name(id));
     }
+  error:
     return assignable_result(0);
 #undef assignable_result
 #undef parser_yyerror