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axmol/js/spidermonkey-win32/include/jsproxy.h

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* vim: set ts=4 sw=4 et tw=99:
*
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla SpiderMonkey JavaScript 1.9 code, released
* May 28, 2008.
*
* The Initial Developer of the Original Code is
* Mozilla Foundation
* Portions created by the Initial Developer are Copyright (C) 2009
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Andreas Gal <gal@mozilla.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef jsproxy_h___
#define jsproxy_h___
#include "jsapi.h"
#include "jsfriendapi.h"
namespace js {
/* Base class for all C++ proxy handlers. */
class JS_FRIEND_API(ProxyHandler) {
void *mFamily;
public:
explicit ProxyHandler(void *family);
virtual ~ProxyHandler();
/* ES5 Harmony fundamental proxy traps. */
virtual bool getPropertyDescriptor(JSContext *cx, JSObject *proxy, jsid id, bool set,
PropertyDescriptor *desc) = 0;
virtual bool getOwnPropertyDescriptor(JSContext *cx, JSObject *proxy, jsid id, bool set,
PropertyDescriptor *desc) = 0;
virtual bool defineProperty(JSContext *cx, JSObject *proxy, jsid id,
PropertyDescriptor *desc) = 0;
virtual bool getOwnPropertyNames(JSContext *cx, JSObject *proxy, AutoIdVector &props) = 0;
virtual bool delete_(JSContext *cx, JSObject *proxy, jsid id, bool *bp) = 0;
virtual bool enumerate(JSContext *cx, JSObject *proxy, AutoIdVector &props) = 0;
virtual bool fix(JSContext *cx, JSObject *proxy, Value *vp) = 0;
/* ES5 Harmony derived proxy traps. */
virtual bool has(JSContext *cx, JSObject *proxy, jsid id, bool *bp);
virtual bool hasOwn(JSContext *cx, JSObject *proxy, jsid id, bool *bp);
virtual bool get(JSContext *cx, JSObject *proxy, JSObject *receiver, jsid id, Value *vp);
virtual bool set(JSContext *cx, JSObject *proxy, JSObject *receiver, jsid id, bool strict,
Value *vp);
virtual bool keys(JSContext *cx, JSObject *proxy, AutoIdVector &props);
virtual bool iterate(JSContext *cx, JSObject *proxy, unsigned flags, Value *vp);
/* Spidermonkey extensions. */
virtual bool call(JSContext *cx, JSObject *proxy, unsigned argc, Value *vp);
virtual bool construct(JSContext *cx, JSObject *proxy, unsigned argc, Value *argv, Value *rval);
virtual bool nativeCall(JSContext *cx, JSObject *proxy, Class *clasp, Native native, CallArgs args);
virtual bool hasInstance(JSContext *cx, JSObject *proxy, const Value *vp, bool *bp);
virtual JSType typeOf(JSContext *cx, JSObject *proxy);
virtual bool objectClassIs(JSObject *obj, ESClassValue classValue, JSContext *cx);
virtual JSString *obj_toString(JSContext *cx, JSObject *proxy);
virtual JSString *fun_toString(JSContext *cx, JSObject *proxy, unsigned indent);
virtual bool regexp_toShared(JSContext *cx, JSObject *proxy, RegExpGuard *g);
virtual bool defaultValue(JSContext *cx, JSObject *obj, JSType hint, Value *vp);
virtual bool iteratorNext(JSContext *cx, JSObject *proxy, Value *vp);
virtual void finalize(JSContext *cx, JSObject *proxy);
virtual void trace(JSTracer *trc, JSObject *proxy);
virtual bool getElementIfPresent(JSContext *cx, JSObject *obj, JSObject *receiver,
uint32_t index, Value *vp, bool *present);
virtual bool isOuterWindow() {
return false;
}
inline void *family() {
return mFamily;
}
};
/* Dispatch point for handlers that executes the appropriate C++ or scripted traps. */
class Proxy {
public:
/* ES5 Harmony fundamental proxy traps. */
static bool getPropertyDescriptor(JSContext *cx, JSObject *proxy, jsid id, bool set,
PropertyDescriptor *desc);
static bool getPropertyDescriptor(JSContext *cx, JSObject *proxy, jsid id, bool set, Value *vp);
static bool getOwnPropertyDescriptor(JSContext *cx, JSObject *proxy, jsid id, bool set,
PropertyDescriptor *desc);
static bool getOwnPropertyDescriptor(JSContext *cx, JSObject *proxy, jsid id, bool set,
Value *vp);
static bool defineProperty(JSContext *cx, JSObject *proxy, jsid id, PropertyDescriptor *desc);
static bool defineProperty(JSContext *cx, JSObject *proxy, jsid id, const Value &v);
static bool getOwnPropertyNames(JSContext *cx, JSObject *proxy, AutoIdVector &props);
static bool delete_(JSContext *cx, JSObject *proxy, jsid id, bool *bp);
static bool enumerate(JSContext *cx, JSObject *proxy, AutoIdVector &props);
static bool fix(JSContext *cx, JSObject *proxy, Value *vp);
/* ES5 Harmony derived proxy traps. */
static bool has(JSContext *cx, JSObject *proxy, jsid id, bool *bp);
static bool hasOwn(JSContext *cx, JSObject *proxy, jsid id, bool *bp);
static bool get(JSContext *cx, JSObject *proxy, JSObject *receiver, jsid id, Value *vp);
static bool getElementIfPresent(JSContext *cx, JSObject *proxy, JSObject *receiver,
uint32_t index, Value *vp, bool *present);
static bool set(JSContext *cx, JSObject *proxy, JSObject *receiver, jsid id, bool strict,
Value *vp);
static bool keys(JSContext *cx, JSObject *proxy, AutoIdVector &props);
static bool iterate(JSContext *cx, JSObject *proxy, unsigned flags, Value *vp);
/* Spidermonkey extensions. */
static bool call(JSContext *cx, JSObject *proxy, unsigned argc, Value *vp);
static bool construct(JSContext *cx, JSObject *proxy, unsigned argc, Value *argv, Value *rval);
static bool nativeCall(JSContext *cx, JSObject *proxy, Class *clasp, Native native, CallArgs args);
static bool hasInstance(JSContext *cx, JSObject *proxy, const Value *vp, bool *bp);
static JSType typeOf(JSContext *cx, JSObject *proxy);
static bool objectClassIs(JSObject *obj, ESClassValue classValue, JSContext *cx);
static JSString *obj_toString(JSContext *cx, JSObject *proxy);
static JSString *fun_toString(JSContext *cx, JSObject *proxy, unsigned indent);
static bool regexp_toShared(JSContext *cx, JSObject *proxy, RegExpGuard *g);
static bool defaultValue(JSContext *cx, JSObject *obj, JSType hint, Value *vp);
static bool iteratorNext(JSContext *cx, JSObject *proxy, Value *vp);
};
inline bool IsObjectProxyClass(const Class *clasp)
{
return clasp == &js::ObjectProxyClass || clasp == &js::OuterWindowProxyClass;
}
inline bool IsFunctionProxyClass(const Class *clasp)
{
return clasp == &js::FunctionProxyClass;
}
inline bool IsObjectProxy(const JSObject *obj)
{
return IsObjectProxyClass(GetObjectClass(obj));
}
inline bool IsFunctionProxy(const JSObject *obj)
{
return IsFunctionProxyClass(GetObjectClass(obj));
}
inline bool IsProxy(const JSObject *obj)
{
Class *clasp = GetObjectClass(obj);
return IsObjectProxyClass(clasp) || IsFunctionProxyClass(clasp);
}
/* Shared between object and function proxies. */
const uint32_t JSSLOT_PROXY_HANDLER = 0;
const uint32_t JSSLOT_PROXY_PRIVATE = 1;
const uint32_t JSSLOT_PROXY_EXTRA = 2;
/* Function proxies only. */
const uint32_t JSSLOT_PROXY_CALL = 4;
const uint32_t JSSLOT_PROXY_CONSTRUCT = 5;
inline ProxyHandler *
GetProxyHandler(const JSObject *obj)
{
JS_ASSERT(IsProxy(obj));
return (ProxyHandler *) GetReservedSlot(obj, JSSLOT_PROXY_HANDLER).toPrivate();
}
inline const Value &
GetProxyPrivate(const JSObject *obj)
{
JS_ASSERT(IsProxy(obj));
return GetReservedSlot(obj, JSSLOT_PROXY_PRIVATE);
}
inline const Value &
GetProxyExtra(const JSObject *obj, size_t n)
{
JS_ASSERT(IsProxy(obj));
return GetReservedSlot(obj, JSSLOT_PROXY_EXTRA + n);
}
inline void
SetProxyExtra(JSObject *obj, size_t n, const Value &extra)
{
JS_ASSERT(IsProxy(obj));
JS_ASSERT(n <= 1);
SetReservedSlot(obj, JSSLOT_PROXY_EXTRA + n, extra);
}
JS_FRIEND_API(JSObject *)
NewProxyObject(JSContext *cx, ProxyHandler *handler, const Value &priv,
JSObject *proto, JSObject *parent,
JSObject *call = NULL, JSObject *construct = NULL);
} /* namespace js */
JS_BEGIN_EXTERN_C
extern JS_FRIEND_API(JSObject *)
js_InitProxyClass(JSContext *cx, JSObject *obj);
JS_END_EXTERN_C
#endif
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