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// Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
// SPDX-License-Identifier: BSD-3-Clause
#include "qscriptecmaobject_p.h"
#include "qscriptengine_p.h"
#include "qscriptvalueimpl_p.h"
#include "qscriptcontext_p.h"
#include "qscriptmember_p.h"
#include "qscriptobject_p.h"
#include <QtDebug>
QT_BEGIN_NAMESPACE
namespace QScript { namespace Ecma {
Object::Object(QScriptEnginePrivate *eng, QScriptClassInfo *classInfo):
Core(eng, classInfo)
{
newObject(&publicPrototype, eng->nullValue());
}
Object::~Object()
{
}
void Object::initialize()
{
QScriptEnginePrivate *eng = engine();
eng->newConstructor(&ctor, this, publicPrototype);
addPrototypeFunction(QLatin1String("toString"), method_toString, 1);
addPrototypeFunction(QLatin1String("toLocaleString"), method_toLocaleString, 1);
addPrototypeFunction(QLatin1String("valueOf"), method_valueOf, 0);
addPrototypeFunction(QLatin1String("hasOwnProperty"), method_hasOwnProperty, 1);
addPrototypeFunction(QLatin1String("isPrototypeOf"), method_isPrototypeOf, 1);
addPrototypeFunction(QLatin1String("propertyIsEnumerable"), method_propertyIsEnumerable, 1);
addPrototypeFunction(QLatin1String("__defineGetter__"), method_defineGetter, 2);
addPrototypeFunction(QLatin1String("__defineSetter__"), method_defineSetter, 2);
}
void Object::execute(QScriptContextPrivate *context)
{
#ifndef Q_SCRIPT_NO_EVENT_NOTIFY
engine()->notifyFunctionEntry(context);
#endif
QScriptValueImpl value;
if (context->argumentCount() > 0)
value = engine()->toObject(context->argument(0));
else
value.invalidate();
if (! value.isValid())
newObject(&value);
context->setReturnValue(value);
#ifndef Q_SCRIPT_NO_EVENT_NOTIFY
engine()->notifyFunctionExit(context);
#endif
}
void Object::newObject(QScriptValueImpl *result, const QScriptValueImpl &proto)
{
engine()->newObject(result, proto, classInfo());
}
QScriptValueImpl Object::method_toString(QScriptContextPrivate *context, QScriptEnginePrivate *eng, QScriptClassInfo *)
{
QScriptValueImpl glo = eng->globalObject();
QString s = QLatin1String("[object ");
QScriptValueImpl self = context->thisObject();
s += self.classInfo()->name();
s += QLatin1Char(']');
return (QScriptValueImpl(eng, s));
}
QScriptValueImpl Object::method_toLocaleString(QScriptContextPrivate *context, QScriptEnginePrivate *eng, QScriptClassInfo *classInfo)
{
return method_toString(context, eng, classInfo);
}
QScriptValueImpl Object::method_valueOf(QScriptContextPrivate *context, QScriptEnginePrivate *, QScriptClassInfo *)
{
return (context->thisObject());
}
QScriptValueImpl Object::method_hasOwnProperty(QScriptContextPrivate *context, QScriptEnginePrivate *eng, QScriptClassInfo *)
{
bool result = false;
if (context->thisObject().isObject() && (context->argumentCount() > 0)) {
QScriptValueImpl arg = context->argument(0);
QScriptNameIdImpl *id = 0;
if (arg.isString())
id = arg.stringValue();
if (! id || ! id->unique) {
QString str = arg.toString();
id = eng->nameId(str);
}
QScript::Member member;
QScriptValueImpl base;
QScriptValueImpl self = context->thisObject();
if (self.resolve(id, &member, &base, QScriptValue::ResolveLocal, QScript::Read))
result = true;
}
return (QScriptValueImpl(result));
}
QScriptValueImpl Object::method_isPrototypeOf(QScriptContextPrivate *context, QScriptEnginePrivate *, QScriptClassInfo *)
{
bool result = false;
if (context->thisObject().isObject() && (context->argumentCount() > 0)) {
QScriptValueImpl arg = context->argument(0);
if (arg.isObject()) {
QScriptValueImpl proto = arg.prototype();
if (proto.isObject()) {
QScriptValueImpl self = context->thisObject();
result = self.objectValue() == proto.objectValue();
}
}
}
return (QScriptValueImpl(result));
}
QScriptValueImpl Object::method_propertyIsEnumerable(QScriptContextPrivate *context, QScriptEnginePrivate *eng, QScriptClassInfo *)
{
bool result = false;
if (context->thisObject().isObject() && (context->argumentCount() > 0)) {
QScriptValueImpl arg = context->argument(0);
QScriptNameIdImpl *id = 0;
if (arg.isString())
id = arg.stringValue();
if (! id || ! id->unique) {
QString str = arg.toString();
id = eng->nameId(str);
}
QScript::Member member;
QScriptValueImpl base;
QScriptValueImpl self = context->thisObject();
if (self.resolve(id, &member, &base, QScriptValue::ResolveLocal, QScript::Read)) {
result = ! member.dontEnum();
if (result) {
QScriptValueImpl tmp;
base.get(member, &tmp);
result = tmp.isValid();
}
}
}
return (QScriptValueImpl(result));
}
QScriptValueImpl Object::method_defineGetter(QScriptContextPrivate *context, QScriptEnginePrivate *eng,
QScriptClassInfo *)
{
QString propertyName = context->argument(0).toString();
if (context->thisObject().propertyFlags(propertyName) & QScriptValue::ReadOnly)
return context->throwError(QLatin1String("cannot redefine read-only property"));
QScriptValueImpl getter = context->argument(1);
if (!getter.isFunction())
return context->throwError(QLatin1String("getter must be a function"));
context->thisObject().setProperty(propertyName, getter, QScriptValue::PropertyGetter);
return eng->undefinedValue();
}
QScriptValueImpl Object::method_defineSetter(QScriptContextPrivate *context, QScriptEnginePrivate *eng,
QScriptClassInfo *)
{
QString propertyName = context->argument(0).toString();
if (context->thisObject().propertyFlags(propertyName) & QScriptValue::ReadOnly)
return context->throwError(QLatin1String("cannot redefine read-only property"));
QScriptValueImpl setter = context->argument(1);
if (!setter.isFunction())
return context->throwError(QLatin1String("setter must be a function"));
context->thisObject().setProperty(propertyName, setter, QScriptValue::PropertySetter);
return eng->undefinedValue();
}
} } // namespace QScript::Ecma
QT_END_NAMESPACE
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