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/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the V4VM 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.h"
#include "qv4runtime.h"
#include "qv4engine.h"
#include "qv4context.h"
#include "qv4object.h"
#include "qv4string.h"
#include "qv4codegen_p.h"
#include "qv4isel_p.h"
#include "qv4managed.h"
#include "qv4property.h"
#include "qv4objectiterator.h"
#include "qv4regexp.h"
#include <QtCore/QString>
#include <QtCore/QHash>
#include <QtCore/QScopedPointer>
#include <cstdio>
#include <cassert>
#include <config.h>
#include <assembler/MacroAssemblerCodeRef.h>
QT_BEGIN_NAMESPACE
namespace QQmlJS {
namespace VM {
struct Value;
struct Function;
struct Object;
struct ObjectIterator;
struct BooleanObject;
struct NumberObject;
struct StringObject;
struct ArrayObject;
struct DateObject;
struct FunctionObject;
struct RegExpObject;
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 RegExpPrototype;
struct ErrorPrototype;
struct EvalErrorPrototype;
struct RangeErrorPrototype;
struct ReferenceErrorPrototype;
struct SyntaxErrorPrototype;
struct TypeErrorPrototype;
struct URIErrorPrototype;
struct InternalClass;
struct Lookup;
struct Function {
String *name;
VM::Value (*code)(VM::ExecutionContext *, const uchar *);
const uchar *codeData;
JSC::MacroAssemblerCodeRef codeRef;
quint32 codeSize;
QByteArray unwindInfo; // CIE+FDE on x86/x86-64. Stored directly in code on ARM.
QVector<String *> formals;
QVector<String *> locals;
QVector<Value> generatedValues;
QVector<String *> identifiers;
QVector<Function *> nestedFunctions;
Function *outer;
Lookup *lookups;
bool hasNestedFunctions;
bool hasDirectEval;
bool usesArgumentsObject;
bool isStrict;
bool isNamedExpression;
Function(String *name)
: name(name)
, code(0)
, codeData(0)
, codeSize(0)
, outer(0)
, lookups(0)
, hasNestedFunctions(0)
, hasDirectEval(false)
, usesArgumentsObject(false)
, isStrict(false)
, isNamedExpression(false)
{}
~Function();
inline bool needsActivation() const { return hasNestedFunctions || hasDirectEval || usesArgumentsObject; }
void mark();
};
struct Q_V4_EXPORT FunctionObject: Object {
ExecutionContext *scope;
String *name;
String * const *formalParameterList;
String * const *varList;
unsigned int formalParameterCount;
unsigned int varCount;
VM::Function *function;
FunctionObject(ExecutionContext *scope);
static Value construct(Managed *that, ExecutionContext *context, Value *args, int argc);
static Value call(Managed *that, ExecutionContext *, const Value &, Value *, int);
inline Value construct(ExecutionContext *context, Value *args, int argc) {
return vtbl->construct(this, context, args, argc);
}
inline Value call(ExecutionContext *context, const Value &thisObject, Value *args, int argc) {
return vtbl->call(this, context, thisObject, args, argc);
}
protected:
static const ManagedVTable static_vtbl;
static void markObjects(Managed *that);
static bool hasInstance(Managed *that, ExecutionContext *ctx, const Value &value);
};
struct FunctionCtor: FunctionObject
{
FunctionCtor(ExecutionContext *scope);
static Value construct(Managed *that, ExecutionContext *context, Value *args, int argc);
static Value call(Managed *that, ExecutionContext *, const Value &, Value *, int);
protected:
static const ManagedVTable static_vtbl;
};
struct FunctionPrototype: FunctionObject
{
FunctionPrototype(ExecutionContext *ctx): FunctionObject(ctx) {}
void init(ExecutionContext *ctx, const Value &ctor);
static Value method_toString(SimpleCallContext *ctx);
static Value method_apply(SimpleCallContext *ctx);
static Value method_call(SimpleCallContext *ctx);
static Value method_bind(SimpleCallContext *ctx);
};
struct BuiltinFunctionOld: FunctionObject {
Value (*code)(SimpleCallContext *);
BuiltinFunctionOld(ExecutionContext *scope, String *name, Value (*code)(SimpleCallContext *));
static Value construct(Managed *, ExecutionContext *context, Value *args, int argc);
static Value call(Managed *that, ExecutionContext *, const Value &, Value *, int);
protected:
static const ManagedVTable static_vtbl;
};
struct ScriptFunction: FunctionObject {
ScriptFunction(ExecutionContext *scope, VM::Function *function);
static Value construct(Managed *, ExecutionContext *context, Value *args, int argc);
static Value call(Managed *that, ExecutionContext *, const Value &, Value *, int);
protected:
static const ManagedVTable static_vtbl;
};
struct BoundFunction: FunctionObject {
FunctionObject *target;
Value boundThis;
QVector<Value> boundArgs;
BoundFunction(ExecutionContext *scope, FunctionObject *target, Value boundThis, const QVector<Value> &boundArgs);
~BoundFunction() {}
static Value construct(Managed *, ExecutionContext *context, Value *args, int argc);
static Value call(Managed *that, ExecutionContext *, const Value &, Value *, int);
static const ManagedVTable static_vtbl;
static void destroy(Managed *);
static void markObjects(Managed *that);
static bool hasInstance(Managed *that, ExecutionContext *ctx, const Value &value);
};
} // namespace VM
} // namespace QQmlJS
QT_END_NAMESPACE
#endif // QMLJS_OBJECTS_H
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