From b9432e7630f3a85944730b3ba1b1aa4a8a753612 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Sun, 29 Aug 2010 03:51:39 +0000
Subject: * load.c (rb_provide_feature): clarify error message for frozen  
 $LOADED_FEATURES.  based on a patch from Run Paint Run Run at  
 [ruby-core:31913].

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@29135 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 load.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'load.c')

diff --git a/load.c b/load.c
index c956977527..11fcaa4023 100644
--- a/load.c
+++ b/load.c
@@ -250,6 +250,10 @@ rb_feature_provided(const char *feature, const char **loading)
 static void
 rb_provide_feature(VALUE feature)
 {
+    if (OBJ_FROZEN(get_loaded_features())) {
+	rb_raise(rb_eRuntimeError,
+		 "$LOADED_FEATURES is frozen; cannot append feature");
+    }
     rb_ary_push(get_loaded_features(), feature);
 }
 
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