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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtQml module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** 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, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, 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.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QV4FUNCTIONOBJECT_H
#define QV4FUNCTIONOBJECT_H
#include "qv4global_p.h"
#include "qv4runtime_p.h"
#include "qv4engine_p.h"
#include "qv4context_p.h"
#include "qv4object_p.h"
#include "qv4string_p.h"
#include "qv4managed_p.h"
#include "qv4property_p.h"
#include "qv4objectiterator_p.h"
#include <QtCore/QString>
#include <QtCore/QHash>
#include <QtCore/QScopedPointer>
#include <cstdio>
#include <cassert>
QT_BEGIN_NAMESPACE
namespace QV4 {
struct Function;
struct Object;
struct BooleanObject;
struct NumberObject;
struct StringObject;
struct ArrayObject;
struct DateObject;
struct FunctionObject;
struct ErrorObject;
struct ArgumentsObject;
struct ExecutionContext;
struct ExecutionEngine;
class MemoryManager;
struct ObjectPrototype;
struct StringPrototype;
struct NumberPrototype;
struct BooleanPrototype;
struct ArrayPrototype;
struct FunctionPrototype;
struct DatePrototype;
struct ErrorPrototype;
struct EvalErrorPrototype;
struct RangeErrorPrototype;
struct ReferenceErrorPrototype;
struct SyntaxErrorPrototype;
struct TypeErrorPrototype;
struct URIErrorPrototype;
struct InternalClass;
struct Lookup;
struct Q_QML_EXPORT FunctionObject: Object {
Q_MANAGED
// Used with Managed::subType
enum FunctionType {
RegularFunction = 0,
WrappedQtMethod = 1,
BoundFunction
};
enum {
Index_Prototype = 0,
Index_ProtoConstructor = 0
};
ExecutionContext *scope;
SafeString name;
unsigned int formalParameterCount;
unsigned int varCount;
Function *function;
InternalClass *protoCacheClass;
uint protoCacheIndex;
ReturnedValue protoValue;
InternalClass *classForConstructor;
FunctionObject(ExecutionContext *scope, const StringRef name, bool createProto = false);
FunctionObject(ExecutionContext *scope, const QString &name = QString(), bool createProto = false);
~FunctionObject();
void init(const StringRef name, bool createProto);
ReturnedValue newInstance();
static ReturnedValue construct(Managed *that, CallData *);
static ReturnedValue call(Managed *that, CallData *d);
inline ReturnedValue construct(CallData *callData) {
return internalClass->vtable->construct(this, callData);
}
inline ReturnedValue call(CallData *callData) {
return internalClass->vtable->call(this, callData);
}
static FunctionObject *cast(const Value &v) {
return v.asFunctionObject();
}
static FunctionObject *creatScriptFunction(ExecutionContext *scope, Function *function);
ReturnedValue protoProperty();
InternalClass *internalClassForConstructor();
protected:
FunctionObject(InternalClass *ic);
static void markObjects(Managed *that, ExecutionEngine *e);
static void destroy(Managed *that)
{ static_cast<FunctionObject*>(that)->~FunctionObject(); }
};
template<>
inline FunctionObject *value_cast(const Value &v) {
return v.asFunctionObject();
}
struct FunctionCtor: FunctionObject
{
Q_MANAGED
FunctionCtor(ExecutionContext *scope);
static ReturnedValue construct(Managed *that, CallData *callData);
static ReturnedValue call(Managed *that, CallData *callData);
};
struct FunctionPrototype: FunctionObject
{
FunctionPrototype(InternalClass *ic);
void init(ExecutionEngine *engine, ObjectRef ctor);
static ReturnedValue method_toString(CallContext *ctx);
static ReturnedValue method_apply(CallContext *ctx);
static ReturnedValue method_call(CallContext *ctx);
static ReturnedValue method_bind(CallContext *ctx);
};
struct BuiltinFunction: FunctionObject {
Q_MANAGED
ReturnedValue (*code)(CallContext *);
BuiltinFunction(ExecutionContext *scope, const StringRef name, ReturnedValue (*code)(CallContext *));
static ReturnedValue construct(Managed *, CallData *);
static ReturnedValue call(Managed *that, CallData *callData);
};
struct IndexedBuiltinFunction: FunctionObject
{
Q_MANAGED
ReturnedValue (*code)(CallContext *ctx, uint index);
uint index;
IndexedBuiltinFunction(ExecutionContext *scope, uint index, ReturnedValue (*code)(CallContext *ctx, uint index))
: FunctionObject(scope)
, code(code)
, index(index)
{
setVTable(&static_vtbl);
}
static ReturnedValue construct(Managed *m, CallData *)
{
return m->engine()->currentContext()->throwTypeError();
}
static ReturnedValue call(Managed *that, CallData *callData);
};
struct ScriptFunction: FunctionObject {
Q_MANAGED
ScriptFunction(ExecutionContext *scope, Function *function);
static ReturnedValue construct(Managed *, CallData *callData);
static ReturnedValue call(Managed *that, CallData *callData);
};
struct SimpleScriptFunction: FunctionObject {
Q_MANAGED
SimpleScriptFunction(ExecutionContext *scope, Function *function);
static ReturnedValue construct(Managed *, CallData *callData);
static ReturnedValue call(Managed *that, CallData *callData);
};
struct BoundFunction: FunctionObject {
Q_MANAGED
FunctionObject *target;
SafeValue boundThis;
QVector<SafeValue> boundArgs;
BoundFunction(ExecutionContext *scope, FunctionObjectRef target, const ValueRef boundThis, const QVector<SafeValue> &boundArgs);
~BoundFunction() {}
static ReturnedValue construct(Managed *, CallData *d);
static ReturnedValue call(Managed *that, CallData *dd);
static void destroy(Managed *);
static void markObjects(Managed *that, ExecutionEngine *e);
};
}
QT_END_NAMESPACE
#endif // QMLJS_OBJECTS_H
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