From 9e16a953148559e54e0aa82a325f2f61237ff258 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Fri, 17 Aug 2018 01:37:58 +0000
Subject: ast.c (rb_ast_node_type): return frozen strings

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64401 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ast.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'ast.c')

diff --git a/ast.c b/ast.c
index ec9a98b3e1..22870f18df 100644
--- a/ast.c
+++ b/ast.c
@@ -155,7 +155,7 @@ rb_ast_node_type(VALUE self)
     struct ASTNodeData *data;
     TypedData_Get_Struct(self, struct ASTNodeData, &rb_node_type, data);
 
-    return rb_str_new_cstr(node_type_to_str(data->node));
+    return rb_fstring_cstr(node_type_to_str(data->node));
 }
 
 #define NEW_CHILD(ast, node) node ? ast_new_internal(ast, node) : Qnil
-- 
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