From 63dbed00946afda34178a479cfa38fa78d620a00 Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby-lang.org>
Date: Tue, 7 Mar 2017 15:01:09 +0900
Subject: `__FILE__` should not update `p->filename`; fix #3485

---
 mrbgems/mruby-compiler/core/parse.y | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

(limited to 'mrbgems/mruby-compiler')

diff --git a/mrbgems/mruby-compiler/core/parse.y b/mrbgems/mruby-compiler/core/parse.y
index 6548eb18c..306036275 100644
--- a/mrbgems/mruby-compiler/core/parse.y
+++ b/mrbgems/mruby-compiler/core/parse.y
@@ -2936,10 +2936,11 @@ var_ref         : variable
                     }
                 | keyword__FILE__
                     {
-                      if (!p->filename) {
-                        p->filename = "(null)";
+                      const char *fn = p->filename;
+                      if (!fn) {
+                        fn = "(null)";
                       }
-                      $$ = new_str(p, p->filename, strlen(p->filename));
+                      $$ = new_str(p, fn, strlen(fn));
                     }
                 | keyword__LINE__
                     {
-- 
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