* variable.c: Change autoload to call `require` through Ruby rather

than directly calling `rb_require_safe`.  This allows things like
  RubyGems to intercept file loading done though `autoload`.
  [Feature #11140]

* test/ruby/test_autoload.rb: Test for change.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@50494 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,12 @@
+Fri May 15 06:54:19 2015  Aaron Patterson <tenderlove@ruby-lang.org>
+
+	* variable.c: Change autoload to call `require` through Ruby rather
+	  than directly calling `rb_require_safe`.  This allows things like
+	  RubyGems to intercept file loading done though `autoload`.
+	  [Feature #11140]
+
+	* test/ruby/test_autoload.rb: Test for change.
+
 Wed Apr  8 19:18:02 2015  Shota Fukumori (sora_h)  <her@sorah.jp>
 
 	* enum.c (enum_grep_v, grep_i, grep_iter_i, Init_enum):

test/ruby/test_autoload.rb

@@ -161,6 +161,31 @@ p Foo::Bar
     }
   end
 
+  def test_require_implemented_in_ruby_is_called
+    Kernel.module_eval do; alias :old_require :require; end
+
+    called_with = []
+    Kernel.send :define_method, :require do |path|
+      called_with << path
+      old_require path
+    end
+
+    Tempfile.create(['autoload', '.rb']) {|file|
+      file.puts 'class AutoloadTest; end'
+      file.close
+      add_autoload(file.path)
+      begin
+        assert(Object::AutoloadTest)
+      ensure
+        remove_autoload_constant
+      end
+      assert_equal [file.path], called_with
+    }
+
+  ensure
+    Kernel.module_eval do; alias :require :old_require; undef :old_require; end
+  end
+
   def add_autoload(path)
     (@autoload_paths ||= []) << path
     eval <<-END

variable.c

@@ -1803,7 +1803,7 @@ static VALUE
 autoload_require(VALUE arg)
 {
     struct autoload_data_i *ele = (struct autoload_data_i *)arg;
-    return rb_require_safe(ele->feature, ele->safe_level);
+    return rb_funcall(rb_vm_top_self(), rb_intern("require"), 1, ele->feature);
 }
 
 static VALUE