From 99844f3e8d03e0069b14b2ff48b3cbe34cb16dc7 Mon Sep 17 00:00:00 2001
From: Boris Zbarsky <bzbarsky@mit.edu>
Date: Fri, 10 Feb 2012 17:49:39 -0500
Subject: [PATCH] Bug 726182.  Add a JS_GetFunctionPrototype API for getting
 the canonical Function.prototype.  r=waldo

---
 js/src/jsapi.cpp | 8 ++++++++
 js/src/jsapi.h   | 7 +++++++
 2 files changed, 15 insertions(+)

diff --git a/js/src/jsapi.cpp b/js/src/jsapi.cpp
index 21fae8357b3..0d0b631c22c 100644
--- a/js/src/jsapi.cpp
+++ b/js/src/jsapi.cpp
@@ -2169,6 +2169,14 @@ JS_GetObjectPrototype(JSContext *cx, JSObject *forObj)
     return forObj->global().getOrCreateObjectPrototype(cx);
 }
 
+JS_PUBLIC_API(JSObject *)
+JS_GetFunctionPrototype(JSContext *cx, JSObject *forObj)
+{
+    CHECK_REQUEST(cx);
+    assertSameCompartment(cx, forObj);
+    return forObj->global().getOrCreateFunctionPrototype(cx);
+}
+
 JS_PUBLIC_API(JSObject *)
 JS_GetGlobalForObject(JSContext *cx, JSObject *obj)
 {
diff --git a/js/src/jsapi.h b/js/src/jsapi.h
index 5e14cbc0f06..82b78355b55 100644
--- a/js/src/jsapi.h
+++ b/js/src/jsapi.h
@@ -2744,6 +2744,13 @@ extern JS_PUBLIC_API(JSBool)
 JS_GetClassObject(JSContext *cx, JSObject *obj, JSProtoKey key,
                   JSObject **objp);
 
+/*
+ * Returns the original value of |Function.prototype| from the global object in
+ * which |forObj| was created.
+ */
+extern JS_PUBLIC_API(JSObject *)
+JS_GetFunctionPrototype(JSContext *cx, JSObject *forObj);
+
 /*
  * Returns the original value of |Object.prototype| from the global object in
  * which |forObj| was created.