mirror of
https://github.com/servo/servo.git
synced 2025-06-10 01:23:13 +00:00
Cargoify servo
This commit is contained in:
Jack Moffitt
parent
db2f642c32
commit
c6ab60dbfc
1761 changed files with 8423 additions and 2294 deletions
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@ -1,633 +0,0 @@
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-*/
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/* vim: set ts=2 sw=2 et tw=79: */
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||||
/* This Source Code Form is subject to the terms of the Mozilla Public
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||||
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
|
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include <stdarg.h>
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#include "BindingUtils.h"
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#include "WrapperFactory.h"
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#include "xpcprivate.h"
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#include "XPCQuickStubs.h"
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namespace mozilla {
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namespace dom {
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JSErrorFormatString ErrorFormatString[] = {
|
||||
#define MSG_DEF(_name, _argc, _str) \
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{ _str, _argc, JSEXN_TYPEERR },
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#include "mozilla/dom/Errors.msg"
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#undef MSG_DEF
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};
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|
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const JSErrorFormatString*
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GetErrorMessage(void* aUserRef, const char* aLocale,
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const unsigned aErrorNumber)
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||||
{
|
||||
MOZ_ASSERT(aErrorNumber < ArrayLength(ErrorFormatString));
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return &ErrorFormatString[aErrorNumber];
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}
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bool
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ThrowErrorMessage(JSContext* aCx, const ErrNum aErrorNumber, ...)
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{
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va_list ap;
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va_start(ap, aErrorNumber);
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JS_ReportErrorNumberVA(aCx, GetErrorMessage, NULL,
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static_cast<const unsigned>(aErrorNumber), ap);
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va_end(ap);
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return false;
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}
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bool
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DefineConstants(JSContext* cx, JSObject* obj, ConstantSpec* cs)
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{
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for (; cs->name; ++cs) {
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JSBool ok =
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JS_DefineProperty(cx, obj, cs->name, cs->value, NULL, NULL,
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JSPROP_ENUMERATE | JSPROP_READONLY | JSPROP_PERMANENT);
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if (!ok) {
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return false;
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||||
}
|
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}
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return true;
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}
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static inline bool
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Define(JSContext* cx, JSObject* obj, JSFunctionSpec* spec) {
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return JS_DefineFunctions(cx, obj, spec);
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}
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static inline bool
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Define(JSContext* cx, JSObject* obj, JSPropertySpec* spec) {
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return JS_DefineProperties(cx, obj, spec);
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}
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static inline bool
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Define(JSContext* cx, JSObject* obj, ConstantSpec* spec) {
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return DefineConstants(cx, obj, spec);
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}
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template<typename T>
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bool
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DefinePrefable(JSContext* cx, JSObject* obj, Prefable<T>* props)
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{
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MOZ_ASSERT(props);
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MOZ_ASSERT(props->specs);
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do {
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// Define if enabled
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if (props->enabled) {
|
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if (!Define(cx, obj, props->specs)) {
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return false;
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}
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}
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} while ((++props)->specs);
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return true;
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}
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// We should use JSFunction objects for interface objects, but we need a custom
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// hasInstance hook because we have new interface objects on prototype chains of
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// old (XPConnect-based) bindings. Because Function.prototype.toString throws if
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// passed a non-Function object we also need to provide our own toString method
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// for interface objects.
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enum {
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TOSTRING_CLASS_RESERVED_SLOT = 0,
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TOSTRING_NAME_RESERVED_SLOT = 1
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};
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JSBool
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InterfaceObjectToString(JSContext* cx, unsigned argc, JS::Value *vp)
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{
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JSObject* callee = JSVAL_TO_OBJECT(JS_CALLEE(cx, vp));
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|
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JSObject* obj = JS_THIS_OBJECT(cx, vp);
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if (!obj) {
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JS_ReportErrorNumber(cx, js_GetErrorMessage, NULL, JSMSG_CANT_CONVERT_TO,
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"null", "object");
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return false;
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}
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|
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jsval v = js::GetFunctionNativeReserved(callee, TOSTRING_CLASS_RESERVED_SLOT);
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JSClass* clasp = static_cast<JSClass*>(JSVAL_TO_PRIVATE(v));
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v = js::GetFunctionNativeReserved(callee, TOSTRING_NAME_RESERVED_SLOT);
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JSString* jsname = static_cast<JSString*>(JSVAL_TO_STRING(v));
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size_t length;
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const jschar* name = JS_GetInternedStringCharsAndLength(jsname, &length);
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|
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if (js::GetObjectJSClass(obj) != clasp) {
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JS_ReportErrorNumber(cx, js_GetErrorMessage, NULL, JSMSG_INCOMPATIBLE_PROTO,
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NS_ConvertUTF16toUTF8(name).get(), "toString",
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"object");
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return false;
|
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}
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||||
|
||||
nsString str;
|
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str.AppendLiteral("function ");
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str.Append(name, length);
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str.AppendLiteral("() {");
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str.Append('\n');
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str.AppendLiteral(" [native code]");
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str.Append('\n');
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str.AppendLiteral("}");
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|
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return xpc::NonVoidStringToJsval(cx, str, vp);
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}
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|
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static JSObject*
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CreateInterfaceObject(JSContext* cx, JSObject* global, JSObject* receiver,
|
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JSClass* constructorClass, JSNative constructorNative,
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unsigned ctorNargs, JSObject* proto,
|
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Prefable<JSFunctionSpec>* staticMethods,
|
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Prefable<ConstantSpec>* constants,
|
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const char* name)
|
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{
|
||||
JSObject* constructor;
|
||||
if (constructorClass) {
|
||||
JSObject* functionProto = JS_GetFunctionPrototype(cx, global);
|
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if (!functionProto) {
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return NULL;
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}
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constructor = JS_NewObject(cx, constructorClass, functionProto, global);
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} else {
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MOZ_ASSERT(constructorNative);
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JSFunction* fun = JS_NewFunction(cx, constructorNative, ctorNargs,
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JSFUN_CONSTRUCTOR, global, name);
|
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if (!fun) {
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return NULL;
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}
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constructor = JS_GetFunctionObject(fun);
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}
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if (!constructor) {
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return NULL;
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}
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|
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if (staticMethods && !DefinePrefable(cx, constructor, staticMethods)) {
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return NULL;
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}
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|
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if (constructorClass) {
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JSFunction* toString = js::DefineFunctionWithReserved(cx, constructor,
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"toString",
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InterfaceObjectToString,
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0, 0);
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if (!toString) {
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return NULL;
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}
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JSObject* toStringObj = JS_GetFunctionObject(toString);
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js::SetFunctionNativeReserved(toStringObj, TOSTRING_CLASS_RESERVED_SLOT,
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PRIVATE_TO_JSVAL(constructorClass));
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JSString *str = ::JS_InternString(cx, name);
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if (!str) {
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return NULL;
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}
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js::SetFunctionNativeReserved(toStringObj, TOSTRING_NAME_RESERVED_SLOT,
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STRING_TO_JSVAL(str));
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}
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if (constants && !DefinePrefable(cx, constructor, constants)) {
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return NULL;
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}
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|
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if (proto && !JS_LinkConstructorAndPrototype(cx, constructor, proto)) {
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return NULL;
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}
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JSBool alreadyDefined;
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if (!JS_AlreadyHasOwnProperty(cx, receiver, name, &alreadyDefined)) {
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return NULL;
|
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}
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|
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// This is Enumerable: False per spec.
|
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if (!alreadyDefined &&
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!JS_DefineProperty(cx, receiver, name, OBJECT_TO_JSVAL(constructor), NULL,
|
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NULL, 0)) {
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return NULL;
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}
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return constructor;
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}
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static JSObject*
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CreateInterfacePrototypeObject(JSContext* cx, JSObject* global,
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JSObject* parentProto, JSClass* protoClass,
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Prefable<JSFunctionSpec>* methods,
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Prefable<JSPropertySpec>* properties,
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Prefable<ConstantSpec>* constants)
|
||||
{
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||||
JSObject* ourProto = JS_NewObjectWithUniqueType(cx, protoClass, parentProto,
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global);
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if (!ourProto) {
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return NULL;
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}
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if (methods && !DefinePrefable(cx, ourProto, methods)) {
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return NULL;
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}
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if (properties && !DefinePrefable(cx, ourProto, properties)) {
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return NULL;
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}
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if (constants && !DefinePrefable(cx, ourProto, constants)) {
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return NULL;
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}
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return ourProto;
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}
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JSObject*
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CreateInterfaceObjects(JSContext* cx, JSObject* global, JSObject *receiver,
|
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JSObject* protoProto, JSClass* protoClass,
|
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JSClass* constructorClass, JSNative constructor,
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unsigned ctorNargs, const DOMClass* domClass,
|
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Prefable<JSFunctionSpec>* methods,
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Prefable<JSPropertySpec>* properties,
|
||||
Prefable<ConstantSpec>* constants,
|
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Prefable<JSFunctionSpec>* staticMethods, const char* name)
|
||||
{
|
||||
MOZ_ASSERT(protoClass || constructorClass || constructor,
|
||||
"Need at least one class or a constructor!");
|
||||
MOZ_ASSERT(!(methods || properties) || protoClass,
|
||||
"Methods or properties but no protoClass!");
|
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MOZ_ASSERT(!staticMethods || constructorClass || constructor,
|
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"Static methods but no constructorClass or constructor!");
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MOZ_ASSERT(bool(name) == bool(constructorClass || constructor),
|
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"Must have name precisely when we have an interface object");
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MOZ_ASSERT(!constructorClass || !constructor);
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|
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JSObject* proto;
|
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if (protoClass) {
|
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proto = CreateInterfacePrototypeObject(cx, global, protoProto, protoClass,
|
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methods, properties, constants);
|
||||
if (!proto) {
|
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return NULL;
|
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}
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|
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js::SetReservedSlot(proto, DOM_PROTO_INSTANCE_CLASS_SLOT,
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JS::PrivateValue(const_cast<DOMClass*>(domClass)));
|
||||
}
|
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else {
|
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proto = NULL;
|
||||
}
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||||
|
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JSObject* interface;
|
||||
if (constructorClass || constructor) {
|
||||
interface = CreateInterfaceObject(cx, global, receiver, constructorClass,
|
||||
constructor, ctorNargs, proto,
|
||||
staticMethods, constants, name);
|
||||
if (!interface) {
|
||||
return NULL;
|
||||
}
|
||||
}
|
||||
|
||||
return protoClass ? proto : interface;
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||||
}
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||||
|
||||
static bool
|
||||
NativeInterface2JSObjectAndThrowIfFailed(XPCLazyCallContext& aLccx,
|
||||
JSContext* aCx,
|
||||
JS::Value* aRetval,
|
||||
xpcObjectHelper& aHelper,
|
||||
const nsIID* aIID,
|
||||
bool aAllowNativeWrapper)
|
||||
{
|
||||
nsresult rv;
|
||||
if (!XPCConvert::NativeInterface2JSObject(aLccx, aRetval, NULL, aHelper, aIID,
|
||||
NULL, aAllowNativeWrapper, &rv)) {
|
||||
// I can't tell if NativeInterface2JSObject throws JS exceptions
|
||||
// or not. This is a sloppy stab at the right semantics; the
|
||||
// method really ought to be fixed to behave consistently.
|
||||
if (!JS_IsExceptionPending(aCx)) {
|
||||
Throw<true>(aCx, NS_FAILED(rv) ? rv : NS_ERROR_UNEXPECTED);
|
||||
}
|
||||
return false;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
bool
|
||||
DoHandleNewBindingWrappingFailure(JSContext* cx, JSObject* scope,
|
||||
nsISupports* value, JS::Value* vp)
|
||||
{
|
||||
if (JS_IsExceptionPending(cx)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
XPCLazyCallContext lccx(JS_CALLER, cx, scope);
|
||||
|
||||
if (value) {
|
||||
xpcObjectHelper helper(value);
|
||||
return NativeInterface2JSObjectAndThrowIfFailed(lccx, cx, vp, helper, NULL,
|
||||
true);
|
||||
}
|
||||
|
||||
return Throw<true>(cx, NS_ERROR_XPC_BAD_CONVERT_JS);
|
||||
}
|
||||
|
||||
// Can only be called with the immediate prototype of the instance object. Can
|
||||
// only be called on the prototype of an object known to be a DOM instance.
|
||||
JSBool
|
||||
InstanceClassHasProtoAtDepth(JSHandleObject protoObject, uint32_t protoID,
|
||||
uint32_t depth)
|
||||
{
|
||||
const DOMClass* domClass = static_cast<DOMClass*>(
|
||||
js::GetReservedSlot(protoObject, DOM_PROTO_INSTANCE_CLASS_SLOT).toPrivate());
|
||||
return (uint32_t)domClass->mInterfaceChain[depth] == protoID;
|
||||
}
|
||||
|
||||
// Only set allowNativeWrapper to false if you really know you need it, if in
|
||||
// doubt use true. Setting it to false disables security wrappers.
|
||||
bool
|
||||
XPCOMObjectToJsval(JSContext* cx, JSObject* scope, xpcObjectHelper &helper,
|
||||
const nsIID* iid, bool allowNativeWrapper, JS::Value* rval)
|
||||
{
|
||||
XPCLazyCallContext lccx(JS_CALLER, cx, scope);
|
||||
|
||||
if (!NativeInterface2JSObjectAndThrowIfFailed(lccx, cx, rval, helper, iid,
|
||||
allowNativeWrapper)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
#ifdef DEBUG
|
||||
JSObject* jsobj = JSVAL_TO_OBJECT(*rval);
|
||||
if (jsobj && !js::GetObjectParent(jsobj))
|
||||
NS_ASSERTION(js::GetObjectClass(jsobj)->flags & JSCLASS_IS_GLOBAL,
|
||||
"Why did we recreate this wrapper?");
|
||||
#endif
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
JSBool
|
||||
QueryInterface(JSContext* cx, unsigned argc, JS::Value* vp)
|
||||
{
|
||||
JS::Value thisv = JS_THIS(cx, vp);
|
||||
if (thisv == JSVAL_NULL)
|
||||
return false;
|
||||
|
||||
// Get the object. It might be a security wrapper, in which case we do a checked
|
||||
// unwrap.
|
||||
JSObject* origObj = JSVAL_TO_OBJECT(thisv);
|
||||
JSObject* obj = js::UnwrapObjectChecked(cx, origObj);
|
||||
if (!obj)
|
||||
return false;
|
||||
|
||||
nsISupports* native;
|
||||
if (!UnwrapDOMObjectToISupports(obj, native)) {
|
||||
return Throw<true>(cx, NS_ERROR_FAILURE);
|
||||
}
|
||||
|
||||
if (argc < 1) {
|
||||
return Throw<true>(cx, NS_ERROR_XPC_NOT_ENOUGH_ARGS);
|
||||
}
|
||||
|
||||
JS::Value* argv = JS_ARGV(cx, vp);
|
||||
if (!argv[0].isObject()) {
|
||||
return Throw<true>(cx, NS_ERROR_XPC_BAD_CONVERT_JS);
|
||||
}
|
||||
|
||||
nsIJSIID* iid;
|
||||
xpc_qsSelfRef iidRef;
|
||||
if (NS_FAILED(xpc_qsUnwrapArg<nsIJSIID>(cx, argv[0], &iid, &iidRef.ptr,
|
||||
&argv[0]))) {
|
||||
return Throw<true>(cx, NS_ERROR_XPC_BAD_CONVERT_JS);
|
||||
}
|
||||
MOZ_ASSERT(iid);
|
||||
|
||||
if (iid->GetID()->Equals(NS_GET_IID(nsIClassInfo))) {
|
||||
nsresult rv;
|
||||
nsCOMPtr<nsIClassInfo> ci = do_QueryInterface(native, &rv);
|
||||
if (NS_FAILED(rv)) {
|
||||
return Throw<true>(cx, rv);
|
||||
}
|
||||
|
||||
return WrapObject(cx, origObj, ci, &NS_GET_IID(nsIClassInfo), vp);
|
||||
}
|
||||
|
||||
// Lie, otherwise we need to check classinfo or QI
|
||||
*vp = thisv;
|
||||
return true;
|
||||
}
|
||||
|
||||
JSBool
|
||||
ThrowingConstructor(JSContext* cx, unsigned argc, JS::Value* vp)
|
||||
{
|
||||
return ThrowErrorMessage(cx, MSG_ILLEGAL_CONSTRUCTOR);
|
||||
}
|
||||
|
||||
bool
|
||||
XrayResolveProperty(JSContext* cx, JSObject* wrapper, jsid id,
|
||||
JSPropertyDescriptor* desc,
|
||||
// And the things we need to determine the descriptor
|
||||
Prefable<JSFunctionSpec>* methods,
|
||||
jsid* methodIds,
|
||||
JSFunctionSpec* methodSpecs,
|
||||
size_t methodCount,
|
||||
Prefable<JSPropertySpec>* attributes,
|
||||
jsid* attributeIds,
|
||||
JSPropertySpec* attributeSpecs,
|
||||
size_t attributeCount,
|
||||
Prefable<ConstantSpec>* constants,
|
||||
jsid* constantIds,
|
||||
ConstantSpec* constantSpecs,
|
||||
size_t constantCount)
|
||||
{
|
||||
for (size_t prefIdx = 0; prefIdx < methodCount; ++prefIdx) {
|
||||
MOZ_ASSERT(methods[prefIdx].specs);
|
||||
if (methods[prefIdx].enabled) {
|
||||
// Set i to be the index into our full list of ids/specs that we're
|
||||
// looking at now.
|
||||
size_t i = methods[prefIdx].specs - methodSpecs;
|
||||
for ( ; methodIds[i] != JSID_VOID; ++i) {
|
||||
if (id == methodIds[i]) {
|
||||
JSFunction *fun = JS_NewFunctionById(cx, methodSpecs[i].call.op,
|
||||
methodSpecs[i].nargs, 0,
|
||||
wrapper, id);
|
||||
if (!fun) {
|
||||
return false;
|
||||
}
|
||||
SET_JITINFO(fun, methodSpecs[i].call.info);
|
||||
JSObject *funobj = JS_GetFunctionObject(fun);
|
||||
desc->value.setObject(*funobj);
|
||||
desc->attrs = methodSpecs[i].flags;
|
||||
desc->obj = wrapper;
|
||||
desc->setter = nullptr;
|
||||
desc->getter = nullptr;
|
||||
return true;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
for (size_t prefIdx = 0; prefIdx < attributeCount; ++prefIdx) {
|
||||
MOZ_ASSERT(attributes[prefIdx].specs);
|
||||
if (attributes[prefIdx].enabled) {
|
||||
// Set i to be the index into our full list of ids/specs that we're
|
||||
// looking at now.
|
||||
size_t i = attributes[prefIdx].specs - attributeSpecs;
|
||||
for ( ; attributeIds[i] != JSID_VOID; ++i) {
|
||||
if (id == attributeIds[i]) {
|
||||
// Because of centralization, we need to make sure we fault in the
|
||||
// JitInfos as well. At present, until the JSAPI changes, the easiest
|
||||
// way to do this is wrap them up as functions ourselves.
|
||||
desc->attrs = attributeSpecs[i].flags & ~JSPROP_NATIVE_ACCESSORS;
|
||||
// They all have getters, so we can just make it.
|
||||
JSObject *global = JS_GetGlobalForObject(cx, wrapper);
|
||||
JSFunction *fun = JS_NewFunction(cx, (JSNative)attributeSpecs[i].getter.op,
|
||||
0, 0, global, NULL);
|
||||
if (!fun)
|
||||
return false;
|
||||
SET_JITINFO(fun, attributeSpecs[i].getter.info);
|
||||
JSObject *funobj = JS_GetFunctionObject(fun);
|
||||
desc->getter = js::CastAsJSPropertyOp(funobj);
|
||||
desc->attrs |= JSPROP_GETTER;
|
||||
if (attributeSpecs[i].setter.op) {
|
||||
// We have a setter! Make it.
|
||||
fun = JS_NewFunction(cx, (JSNative)attributeSpecs[i].setter.op,
|
||||
1, 0, global, NULL);
|
||||
if (!fun)
|
||||
return false;
|
||||
SET_JITINFO(fun, attributeSpecs[i].setter.info);
|
||||
funobj = JS_GetFunctionObject(fun);
|
||||
desc->setter = js::CastAsJSStrictPropertyOp(funobj);
|
||||
desc->attrs |= JSPROP_SETTER;
|
||||
} else {
|
||||
desc->setter = NULL;
|
||||
}
|
||||
desc->obj = wrapper;
|
||||
return true;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
for (size_t prefIdx = 0; prefIdx < constantCount; ++prefIdx) {
|
||||
MOZ_ASSERT(constants[prefIdx].specs);
|
||||
if (constants[prefIdx].enabled) {
|
||||
// Set i to be the index into our full list of ids/specs that we're
|
||||
// looking at now.
|
||||
size_t i = constants[prefIdx].specs - constantSpecs;
|
||||
for ( ; constantIds[i] != JSID_VOID; ++i) {
|
||||
if (id == constantIds[i]) {
|
||||
desc->attrs = JSPROP_ENUMERATE | JSPROP_READONLY | JSPROP_PERMANENT;
|
||||
desc->obj = wrapper;
|
||||
desc->value = constantSpecs[i].value;
|
||||
return true;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
bool
|
||||
XrayEnumerateProperties(JS::AutoIdVector& props,
|
||||
Prefable<JSFunctionSpec>* methods,
|
||||
jsid* methodIds,
|
||||
JSFunctionSpec* methodSpecs,
|
||||
size_t methodCount,
|
||||
Prefable<JSPropertySpec>* attributes,
|
||||
jsid* attributeIds,
|
||||
JSPropertySpec* attributeSpecs,
|
||||
size_t attributeCount,
|
||||
Prefable<ConstantSpec>* constants,
|
||||
jsid* constantIds,
|
||||
ConstantSpec* constantSpecs,
|
||||
size_t constantCount)
|
||||
{
|
||||
for (size_t prefIdx = 0; prefIdx < methodCount; ++prefIdx) {
|
||||
MOZ_ASSERT(methods[prefIdx].specs);
|
||||
if (methods[prefIdx].enabled) {
|
||||
// Set i to be the index into our full list of ids/specs that we're
|
||||
// looking at now.
|
||||
size_t i = methods[prefIdx].specs - methodSpecs;
|
||||
for ( ; methodIds[i] != JSID_VOID; ++i) {
|
||||
if ((methodSpecs[i].flags & JSPROP_ENUMERATE) &&
|
||||
!props.append(methodIds[i])) {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
for (size_t prefIdx = 0; prefIdx < attributeCount; ++prefIdx) {
|
||||
MOZ_ASSERT(attributes[prefIdx].specs);
|
||||
if (attributes[prefIdx].enabled) {
|
||||
// Set i to be the index into our full list of ids/specs that we're
|
||||
// looking at now.
|
||||
size_t i = attributes[prefIdx].specs - attributeSpecs;
|
||||
for ( ; attributeIds[i] != JSID_VOID; ++i) {
|
||||
if ((attributeSpecs[i].flags & JSPROP_ENUMERATE) &&
|
||||
!props.append(attributeIds[i])) {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
for (size_t prefIdx = 0; prefIdx < constantCount; ++prefIdx) {
|
||||
MOZ_ASSERT(constants[prefIdx].specs);
|
||||
if (constants[prefIdx].enabled) {
|
||||
// Set i to be the index into our full list of ids/specs that we're
|
||||
// looking at now.
|
||||
size_t i = constants[prefIdx].specs - constantSpecs;
|
||||
for ( ; constantIds[i] != JSID_VOID; ++i) {
|
||||
if (!props.append(constantIds[i])) {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
bool
|
||||
GetPropertyOnPrototype(JSContext* cx, JSObject* proxy, jsid id, bool* found,
|
||||
JS::Value* vp)
|
||||
{
|
||||
JSObject* proto;
|
||||
if (!js::GetObjectProto(cx, proxy, &proto)) {
|
||||
return false;
|
||||
}
|
||||
if (!proto) {
|
||||
*found = false;
|
||||
return true;
|
||||
}
|
||||
|
||||
JSBool hasProp;
|
||||
if (!JS_HasPropertyById(cx, proto, id, &hasProp)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
*found = hasProp;
|
||||
if (!hasProp || !vp) {
|
||||
return true;
|
||||
}
|
||||
|
||||
return JS_ForwardGetPropertyTo(cx, proto, id, proxy, vp);
|
||||
}
|
||||
|
||||
bool
|
||||
HasPropertyOnPrototype(JSContext* cx, JSObject* proxy, DOMProxyHandler* handler,
|
||||
jsid id)
|
||||
{
|
||||
Maybe<JSAutoCompartment> ac;
|
||||
if (xpc::WrapperFactory::IsXrayWrapper(proxy)) {
|
||||
proxy = js::UnwrapObject(proxy);
|
||||
ac.construct(cx, proxy);
|
||||
}
|
||||
MOZ_ASSERT(js::IsProxy(proxy) && js::GetProxyHandler(proxy) == handler);
|
||||
|
||||
bool found;
|
||||
// We ignore an error from GetPropertyOnPrototype.
|
||||
return !GetPropertyOnPrototype(cx, proxy, id, &found, NULL) || found;
|
||||
}
|
||||
|
||||
} // namespace dom
|
||||
} // namespace mozilla
|
||||
Loading…
Add table
Add a link
Reference in a new issue