diff -r 000000000000 -r 6474c204b198 js/src/builtin/RegExp.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/builtin/RegExp.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,81 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ * vim: set ts=8 sts=4 et sw=4 tw=99:
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef builtin_RegExp_h
+#define builtin_RegExp_h
+
+#include "vm/RegExpObject.h"
+
+JSObject *
+js_InitRegExpClass(JSContext *cx, js::HandleObject obj);
+
+/*
+ * The following builtin natives are extern'd for pointer comparison in
+ * other parts of the engine.
+ */
+
+namespace js {
+
+// Whether RegExp statics should be updated with the input and results of a
+// regular expression execution.
+enum RegExpStaticsUpdate { UpdateRegExpStatics, DontUpdateRegExpStatics };
+
+RegExpRunStatus
+ExecuteRegExp(JSContext *cx, HandleObject regexp, HandleString string,
+              MatchConduit &matches, RegExpStaticsUpdate staticsUpdate);
+
+/*
+ * Legacy behavior of ExecuteRegExp(), which is baked into the JSAPI.
+ *
+ * |res| may be nullptr if the RegExpStatics are not to be updated.
+ * |input| may be nullptr if there is no JSString corresponding to
+ * |chars| and |length|.
+ */
+bool
+ExecuteRegExpLegacy(JSContext *cx, RegExpStatics *res, RegExpObject &reobj,
+                    Handle<JSLinearString*> input, const jschar *chars, size_t length,
+                    size_t *lastIndex, bool test, MutableHandleValue rval);
+
+/* Translation from MatchPairs to a JS array in regexp_exec()'s output format. */
+bool
+CreateRegExpMatchResult(JSContext *cx, HandleString input, const MatchPairs &matches,
+                        MutableHandleValue rval);
+
+extern bool
+regexp_exec_raw(JSContext *cx, HandleObject regexp, HandleString input, MutableHandleValue output);
+
+extern bool
+regexp_exec(JSContext *cx, unsigned argc, Value *vp);
+
+bool
+regexp_test_raw(JSContext *cx, HandleObject regexp, HandleString input, bool *result);
+
+extern bool
+regexp_test(JSContext *cx, unsigned argc, Value *vp);
+
+/*
+ * The following functions are for use by self-hosted code.
+ */
+
+/*
+ * Behaves like regexp.exec(string), but doesn't set RegExp statics.
+ *
+ * Usage: match = regexp_exec_no_statics(regexp, string)
+ */
+extern bool
+regexp_exec_no_statics(JSContext *cx, unsigned argc, Value *vp);
+
+/*
+ * Behaves like regexp.test(string), but doesn't set RegExp statics.
+ *
+ * Usage: does_match = regexp_test_no_statics(regexp, string)
+ */
+extern bool
+regexp_test_no_statics(JSContext *cx, unsigned argc, Value *vp);
+
+} /* namespace js */
+
+#endif /* builtin_RegExp_h */