vm_eval.c: use file argument

* vm_eval.c (eval_string_with_cref): use the given file name unless
  eval even if scope is given.  additional fix for [Bug #8436].
  based on the patch by srawlins at [ruby-core:56099] [Bug #8662].

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42103 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,9 @@
+Mon Jul 22 09:48:31 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_eval.c (eval_string_with_cref): use the given file name unless
+	  eval even if scope is given.  additional fix for [Bug #8436].
+	  based on the patch by srawlins at [ruby-core:56099] [Bug #8662].
+
 Mon Jul 22 09:24:19 2013  Kouji Takao  <kouji@takao7.net>
 
 	* ext/readline/readline.c (Init_readline): added

test/ruby/test_method.rb

@@ -547,6 +547,8 @@ class TestMethod < Test::Unit::TestCase
     assert_equal(File.dirname(File.realpath(__FILE__)), __dir__)
     bug8436 = '[ruby-core:55123] [Bug #8436]'
     assert_equal(__dir__, eval("__dir__", binding), bug8436)
+    bug8662 = '[ruby-core:56099] [Bug #8662]'
+    assert_equal("arbitrary", eval("__dir__", binding, "arbitrary/file.rb"), bug8662)
   end
 
   def test_alias_owner

vm_eval.c

@@ -1205,7 +1205,10 @@ eval_string_with_cref(VALUE self, VALUE src, VALUE scope, NODE *cref, const char
 	    if (rb_obj_is_kind_of(scope, rb_cBinding)) {
 		GetBindingPtr(scope, bind);
 		envval = bind->env;
-		if (strcmp(file, "(eval)") == 0 && bind->path != Qnil) {
+		if (strcmp(file, "(eval)") != 0) {
+		    absolute_path = rb_str_new_cstr(file);
+		}
+		else if (bind->path != Qnil) {
 		    file = RSTRING_PTR(bind->path);
 		    line = bind->first_lineno;
 		    absolute_path = rb_current_realfilepath();