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Diffstat (limited to 'src/script/qscriptecmafunction.cpp')
| -rw-r--r-- | src/script/qscriptecmafunction.cpp | 459 |
1 files changed, 0 insertions, 459 deletions
diff --git a/src/script/qscriptecmafunction.cpp b/src/script/qscriptecmafunction.cpp deleted file mode 100644 index 1604a72..0000000 --- a/src/script/qscriptecmafunction.cpp +++ /dev/null @@ -1,459 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). -** Contact: Nokia Corporation (qt-info@nokia.com) -** -** This file is part of the QtScript module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** No Commercial Usage -** This file contains pre-release code and may not be distributed. -** You may use this file in accordance with the terms and conditions -** contained in the either Technology Preview License Agreement or the -** Beta Release License Agreement. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 2.1 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 2.1 requirements -** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Nokia gives you certain -** additional rights. These rights are described in the Nokia Qt LGPL -** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this -** package. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 3.0 as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU General Public License version 3.0 requirements will be -** met: http://www.gnu.org/copyleft/gpl.html. -** -** If you are unsure which license is appropriate for your use, please -** contact the sales department at http://qt.nokia.com/contact. -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qscriptecmafunction_p.h" - -#ifndef QT_NO_SCRIPT - -#include "qscriptengine_p.h" -#include "qscriptvalueimpl_p.h" -#include "qscriptcontext_p.h" -#include "qscriptmember_p.h" -#include "qscriptobject_p.h" - -#include <QtCore/QtDebug> - -#ifndef QT_NO_QOBJECT -# include "qscriptextqobject_p.h" -# include <QtCore/QMetaMethod> -#endif - -QT_BEGIN_NAMESPACE - -namespace QScript { namespace Ecma { - -class FunctionClassData: public QScriptClassData -{ - QScriptClassInfo *m_classInfo; - -public: - FunctionClassData(QScriptClassInfo *classInfo); - virtual ~FunctionClassData(); - - inline QScriptClassInfo *classInfo() const - { return m_classInfo; } - - virtual bool resolve(const QScriptValueImpl &object, - QScriptNameIdImpl *nameId, - QScript::Member *member, QScriptValueImpl *base, - QScript::AccessMode access); - virtual bool get(const QScriptValueImpl &obj, const Member &m, - QScriptValueImpl *out_value); - virtual bool put(QScriptValueImpl *object, const QScript::Member &member, - const QScriptValueImpl &value); - virtual void mark(const QScriptValueImpl &object, int generation); -}; - -FunctionClassData::FunctionClassData(QScriptClassInfo *classInfo) - : m_classInfo(classInfo) -{ -} - -FunctionClassData::~FunctionClassData() -{ -} - -bool FunctionClassData::resolve(const QScriptValueImpl &object, - QScriptNameIdImpl *nameId, - QScript::Member *member, QScriptValueImpl *base, - QScript::AccessMode /*access*/) -{ - if (object.classInfo() != classInfo()) - return false; - - QScriptEnginePrivate *eng = object.engine(); - - if ((nameId == eng->idTable()->id_length) - || (nameId == eng->idTable()->id_arguments)) { - member->native(nameId, /*id=*/ 0, - QScriptValue::Undeletable - | QScriptValue::ReadOnly - | QScriptValue::SkipInEnumeration); - *base = object; - return true; - } - - return false; -} - -bool FunctionClassData::get(const QScriptValueImpl &object, const Member &member, - QScriptValueImpl *result) -{ - if (object.classInfo() != classInfo()) - return false; - - QScriptEnginePrivate *eng = object.engine(); - if (! member.isNativeProperty()) - return false; - - if (member.nameId() == eng->idTable()->id_length) { - *result = QScriptValueImpl(object.toFunction()->length); - return true; - } else if (member.nameId() == eng->idTable()->id_arguments) { - *result = eng->nullValue(); - return true; - } - - return false; -} - -bool FunctionClassData::put(QScriptValueImpl *, const QScript::Member &, - const QScriptValueImpl &) -{ - return false; -} - -void FunctionClassData::mark(const QScriptValueImpl &object, int generation) -{ - if (object.classInfo() != classInfo()) - return; - QScriptFunction *fun = object.toFunction(); - QScriptEnginePrivate *eng = object.engine(); - fun->mark(eng, generation); -} - -Function::Function(QScriptEnginePrivate *eng, QScriptClassInfo *classInfo): - Core(eng, classInfo) -{ - publicPrototype = eng->createFunction(method_void, 0, classInfo); // public prototype -} - -Function::~Function() -{ -} - -void Function::initialize() -{ - QScriptEnginePrivate *eng = engine(); - eng->newConstructor(&ctor, this, publicPrototype); - - addPrototypeFunction(QLatin1String("toString"), method_toString, 1); - addPrototypeFunction(QLatin1String("apply"), method_apply, 2); - addPrototypeFunction(QLatin1String("call"), method_call, 1); - addPrototypeFunction(QLatin1String("connect"), method_connect, 1); - addPrototypeFunction(QLatin1String("disconnect"), method_disconnect, 1); - - classInfo()->setData(new FunctionClassData(classInfo())); -} - -void Function::execute(QScriptContextPrivate *context) -{ -#ifndef Q_SCRIPT_NO_EVENT_NOTIFY - engine()->notifyFunctionEntry(context); -#endif - int lineNumber = context->currentLine; - QString contents = buildFunction(context); - engine()->evaluate(context, contents, lineNumber); -#ifndef Q_SCRIPT_NO_EVENT_NOTIFY - engine()->notifyFunctionExit(context); -#endif -} - -QString Function::buildFunction(QScriptContextPrivate *context) -{ - int argc = context->argumentCount(); - - QString code; - code += QLatin1String("function("); - - // the formals - for (int i = 0; i < argc - 1; ++i) { - if (i != 0) - code += QLatin1Char(','); - - code += context->argument(i).toString(); - } - - code += QLatin1String("){"); - - // the function body - if (argc != 0) - code += context->argument(argc - 1).toString(); - - code += QLatin1String("\n}"); - - return code; -} - -void Function::newFunction(QScriptValueImpl *result, QScriptFunction *foo) -{ - engine()->newFunction(result, foo); -} - -QScriptValueImpl Function::method_toString(QScriptContextPrivate *context, QScriptEnginePrivate *eng, QScriptClassInfo *) -{ - QScriptValueImpl self = context->thisObject(); - if (QScriptFunction *foo = self.toFunction()) { - QString code = foo->toString(context); - return QScriptValueImpl(eng, code); - } - - return throwThisObjectTypeError( - context, QLatin1String("Function.prototype.toString")); -} - -QScriptValueImpl Function::method_call(QScriptContextPrivate *context, QScriptEnginePrivate *eng, QScriptClassInfo *) -{ - if (! context->thisObject().isFunction()) { - return throwThisObjectTypeError( - context, QLatin1String("Function.prototype.call")); - } - - QScriptValueImpl thisObject = eng->toObject(context->argument(0)); - if (! (thisObject.isValid () && thisObject.isObject())) - thisObject = eng->globalObject(); - - QScriptValueImplList args; - for (int i = 1; i < context->argumentCount(); ++i) - args << context->argument(i); - - return context->thisObject().call(thisObject, args); -} - -QScriptValueImpl Function::method_apply(QScriptContextPrivate *context, QScriptEnginePrivate *eng, QScriptClassInfo *) -{ - if (! context->thisObject().isFunction()) { - return throwThisObjectTypeError( - context, QLatin1String("Function.prototype.apply")); - } - - QScriptValueImpl thisObject = eng->toObject(context->argument(0)); - if (! (thisObject.isValid () && thisObject.isObject())) - thisObject = eng->globalObject(); - - QScriptValueImplList args; - QScriptValueImpl undefined = eng->undefinedValue(); - - QScriptValueImpl arg = context->argument(1); - - if (Ecma::Array::Instance *arr = eng->arrayConstructor->get(arg)) { - QScript::Array actuals = arr->value; - - for (quint32 i = 0; i < actuals.count(); ++i) { - QScriptValueImpl a = actuals.at(i); - if (! a.isValid()) - args << undefined; - else - args << a; - } - } else if (arg.classInfo() == eng->m_class_arguments) { - QScript::ArgumentsObjectData *arguments; - arguments = static_cast<QScript::ArgumentsObjectData*> (arg.objectData()); - QScriptObject *activation = arguments->activation.objectValue(); - for (uint i = 0; i < arguments->length; ++i) - args << activation->m_values[i]; - } else if (!(arg.isUndefined() || arg.isNull())) { - return context->throwError(QScriptContext::TypeError, - QLatin1String("Function.prototype.apply: second argument is not an array")); - } - - return context->thisObject().call(thisObject, args); -} - -QScriptValueImpl Function::method_void(QScriptContextPrivate *, QScriptEnginePrivate *eng, QScriptClassInfo *) -{ - return eng->undefinedValue(); -} - -QScriptValueImpl Function::method_disconnect(QScriptContextPrivate *context, QScriptEnginePrivate *eng, QScriptClassInfo *) -{ -#ifndef QT_NO_QOBJECT - if (context->argumentCount() == 0) { - return context->throwError( - QLatin1String("Function.prototype.disconnect: no arguments given")); - } - - QScriptValueImpl self = context->thisObject(); - QScriptFunction *fun = self.toFunction(); - if ((fun == 0) || (fun->type() != QScriptFunction::Qt)) { - return context->throwError( - QScriptContext::TypeError, - QLatin1String("Function.prototype.disconnect: this object is not a signal")); - } - - QtFunction *qtSignal = static_cast<QtFunction*>(fun); - - const QMetaObject *meta = qtSignal->metaObject(); - if (!meta) { - return context->throwError( - QScriptContext::TypeError, - QString::fromLatin1("Function.prototype.disconnect: cannot disconnect from deleted QObject")); - } - - QMetaMethod sig = meta->method(qtSignal->initialIndex()); - if (sig.methodType() != QMetaMethod::Signal) { - return context->throwError(QScriptContext::TypeError, - QString::fromLatin1("Function.prototype.disconnect: %0::%1 is not a signal") - .arg(QLatin1String(qtSignal->metaObject()->className())) - .arg(QLatin1String(sig.signature()))); - } - - QScriptValueImpl receiver; - QScriptValueImpl slot; - QScriptValueImpl arg0 = context->argument(0); - if (context->argumentCount() < 2) { - receiver = QScriptValueImpl(); - slot = arg0; - } else { - receiver = arg0; - QScriptValueImpl arg1 = context->argument(1); - if (arg1.isFunction()) - slot = arg1; - else - slot = receiver.property(arg1.toString(), QScriptValue::ResolvePrototype); - } - - if (!slot.isFunction()) { - return context->throwError( - QScriptContext::TypeError, - QLatin1String("Function.prototype.disconnect: target is not a function")); - } - - bool ok = eng->scriptDisconnect(self, receiver, slot); - if (!ok) { - return context->throwError( - QString::fromLatin1("Function.prototype.disconnect: failed to disconnect from %0::%1") - .arg(QLatin1String(qtSignal->metaObject()->className())) - .arg(QLatin1String(sig.signature()))); - } - return eng->undefinedValue(); -#else - Q_UNUSED(eng); - return context->throwError(QScriptContext::TypeError, - QLatin1String("Function.prototype.disconnect")); -#endif // QT_NO_QOBJECT -} - -QScriptValueImpl Function::method_connect(QScriptContextPrivate *context, QScriptEnginePrivate *eng, QScriptClassInfo *classInfo) -{ - Q_UNUSED(classInfo); - -#ifndef QT_NO_QOBJECT - if (context->argumentCount() == 0) { - return context->throwError( - QLatin1String("Function.prototype.connect: no arguments given")); - } - - QScriptValueImpl self = context->thisObject(); - QScriptFunction *fun = self.toFunction(); - if ((fun == 0) || (fun->type() != QScriptFunction::Qt)) { - return context->throwError( - QScriptContext::TypeError, - QLatin1String("Function.prototype.connect: this object is not a signal")); - } - - QtFunction *qtSignal = static_cast<QtFunction*>(fun); - - const QMetaObject *meta = qtSignal->metaObject(); - if (!meta) { - return context->throwError( - QScriptContext::TypeError, - QString::fromLatin1("Function.prototype.connect: cannot connect to deleted QObject")); - } - - QMetaMethod sig = meta->method(qtSignal->initialIndex()); - if (sig.methodType() != QMetaMethod::Signal) { - return context->throwError(QScriptContext::TypeError, - QString::fromLatin1("Function.prototype.connect: %0::%1 is not a signal") - .arg(QLatin1String(qtSignal->metaObject()->className())) - .arg(QLatin1String(sig.signature()))); - } - - { - QList<int> overloads = qtSignal->overloadedIndexes(); - if (!overloads.isEmpty()) { - overloads.append(qtSignal->initialIndex()); - QByteArray signature = sig.signature(); - QString message = QString::fromLatin1("Function.prototype.connect: ambiguous connect to %0::%1(); candidates are\n") - .arg(QLatin1String(qtSignal->metaObject()->className())) - .arg(QLatin1String(signature.left(signature.indexOf('(')))); - for (int i = 0; i < overloads.size(); ++i) { - QMetaMethod mtd = meta->method(overloads.at(i)); - message.append(QString::fromLatin1(" %0\n").arg(QString::fromLatin1(mtd.signature()))); - } - message.append(QString::fromLatin1("Use e.g. object['%0'].connect() to connect to a particular overload") - .arg(QLatin1String(signature))); - return context->throwError(message); - } - } - - QScriptValueImpl receiver; - QScriptValueImpl slot; - QScriptValueImpl arg0 = context->argument(0); - if (context->argumentCount() < 2) { - receiver = QScriptValueImpl(); - slot = arg0; - } else { - receiver = arg0; - QScriptValueImpl arg1 = context->argument(1); - if (arg1.isFunction()) - slot = arg1; - else - slot = receiver.property(arg1.toString(), QScriptValue::ResolvePrototype); - } - - if (!slot.isFunction()) { - return context->throwError( - QScriptContext::TypeError, - QLatin1String("Function.prototype.connect: target is not a function")); - } - - bool ok = eng->scriptConnect(self, receiver, slot, Qt::AutoConnection); - if (!ok) { - return context->throwError( - QString::fromLatin1("Function.prototype.connect: failed to connect to %0::%1") - .arg(QLatin1String(qtSignal->metaObject()->className())) - .arg(QLatin1String(sig.signature()))); - } - return eng->undefinedValue(); -#else - Q_UNUSED(eng); - Q_UNUSED(classInfo); - return context->throwError(QScriptContext::TypeError, - QLatin1String("Function.prototype.connect")); -#endif // QT_NO_QOBJECT -} - -} } // namespace QScript::Ecma - -QT_END_NAMESPACE - -#endif // QT_NO_SCRIPT |