/**************************************************************************** ** ** Copyright (C) 2016 The Qt Company Ltd. ** Contact: https://www.qt.io/licensing/ ** ** 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 The Qt Company. For licensing terms ** and conditions see https://www.qt.io/terms-conditions. For further ** information use the contact form at https://www.qt.io/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 3 as published by the Free Software ** Foundation and appearing in the file LICENSE.LGPL3 included in the ** packaging of this file. Please review the following information to ** ensure the GNU Lesser General Public License version 3 requirements ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. ** ** GNU General Public License Usage ** Alternatively, this file may be used under the terms of the GNU ** General Public License version 2.0 or (at your option) the GNU General ** Public license version 3 or any later version approved by the KDE Free ** Qt Foundation. The licenses are as published by the Free Software ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 ** included in the packaging of this file. Please review the following ** information to ensure the GNU General Public License requirements will ** be met: https://www.gnu.org/licenses/gpl-2.0.html and ** https://www.gnu.org/licenses/gpl-3.0.html. ** ** $QT_END_LICENSE$ ** ****************************************************************************/ #ifndef QV4LOOKUP_H #define QV4LOOKUP_H // // W A R N I N G // ------------- // // This file is not part of the Qt API. It exists purely as an // implementation detail. This header file may change from version to // version without notice, or even be removed. // // We mean it. // #include "qv4global_p.h" #include "qv4runtime_p.h" #include "qv4engine_p.h" #include "qv4context_p.h" #if !defined(V4_BOOTSTRAP) #include "qv4object_p.h" #include "qv4internalclass_p.h" #endif QT_BEGIN_NAMESPACE namespace QV4 { struct Lookup { enum { Size = 4 }; union { ReturnedValue (*indexedGetter)(Lookup *l, const Value &object, const Value &index); void (*indexedSetter)(Lookup *l, const Value &object, const Value &index, const Value &v); ReturnedValue (*getter)(Lookup *l, ExecutionEngine *engine, const Value &object); ReturnedValue (*globalGetter)(Lookup *l, ExecutionEngine *engine); void (*setter)(Lookup *l, ExecutionEngine *engine, Value &object, const Value &v); }; union { ExecutionEngine *engine; InternalClass *classList[Size]; struct { void *dummy0; void *dummy1; void *dummy2; Heap::Object *proto; }; }; union { int level; uint index2; unsigned type; }; uint index; uint nameIndex; static ReturnedValue indexedGetterGeneric(Lookup *l, const Value &object, const Value &index); static ReturnedValue indexedGetterFallback(Lookup *l, const Value &object, const Value &index); static ReturnedValue indexedGetterObjectInt(Lookup *l, const Value &object, const Value &index); static void indexedSetterGeneric(Lookup *l, const Value &object, const Value &index, const Value &v); static void indexedSetterFallback(Lookup *l, const Value &object, const Value &index, const Value &value); static void indexedSetterObjectInt(Lookup *l, const Value &object, const Value &index, const Value &v); static ReturnedValue getterGeneric(Lookup *l, ExecutionEngine *engine, const Value &object); static ReturnedValue getterTwoClasses(Lookup *l, ExecutionEngine *engine, const Value &object); static ReturnedValue getterFallback(Lookup *l, ExecutionEngine *engine, const Value &object); static ReturnedValue getter0MemberData(Lookup *l, ExecutionEngine *engine, const Value &object); static ReturnedValue getter0Inline(Lookup *l, ExecutionEngine *engine, const Value &object); static ReturnedValue getter1(Lookup *l, ExecutionEngine *engine, const Value &object); static ReturnedValue getter2(Lookup *l, ExecutionEngine *engine, const Value &object); static ReturnedValue getter0Inlinegetter0Inline(Lookup *l, ExecutionEngine *engine, const Value &object); static ReturnedValue getter0Inlinegetter0MemberData(Lookup *l, ExecutionEngine *engine, const Value &object); static ReturnedValue getter0MemberDatagetter0MemberData(Lookup *l, ExecutionEngine *engine, const Value &object); static ReturnedValue getter0Inlinegetter1(Lookup *l, ExecutionEngine *engine, const Value &object); static ReturnedValue getter0MemberDatagetter1(Lookup *l, ExecutionEngine *engine, const Value &object); static ReturnedValue getter1getter1(Lookup *l, ExecutionEngine *engine, const Value &object); static ReturnedValue getterAccessor0(Lookup *l, ExecutionEngine *engine, const Value &object); static ReturnedValue getterAccessor1(Lookup *l, ExecutionEngine *engine, const Value &object); static ReturnedValue getterAccessor2(Lookup *l, ExecutionEngine *engine, const Value &object); static ReturnedValue primitiveGetter0Inline(Lookup *l, ExecutionEngine *engine, const Value &object); static ReturnedValue primitiveGetter0MemberData(Lookup *l, ExecutionEngine *engine, const Value &object); static ReturnedValue primitiveGetter1(Lookup *l, ExecutionEngine *engine, const Value &object); static ReturnedValue primitiveGetterAccessor0(Lookup *l, ExecutionEngine *engine, const Value &object); static ReturnedValue primitiveGetterAccessor1(Lookup *l, ExecutionEngine *engine, const Value &object); static ReturnedValue stringLengthGetter(Lookup *l, ExecutionEngine *engine, const Value &object); static ReturnedValue arrayLengthGetter(Lookup *l, ExecutionEngine *engine, const Value &object); static ReturnedValue globalGetterGeneric(Lookup *l, ExecutionEngine *engine); static ReturnedValue globalGetter0Inline(Lookup *l, ExecutionEngine *engine); static ReturnedValue globalGetter0MemberData(Lookup *l, ExecutionEngine *engine); static ReturnedValue globalGetter1(Lookup *l, ExecutionEngine *engine); static ReturnedValue globalGetter2(Lookup *l, ExecutionEngine *engine); static ReturnedValue globalGetterAccessor0(Lookup *l, ExecutionEngine *engine); static ReturnedValue globalGetterAccessor1(Lookup *l, ExecutionEngine *engine); static ReturnedValue globalGetterAccessor2(Lookup *l, ExecutionEngine *engine); static void setterGeneric(Lookup *l, ExecutionEngine *engine, Value &object, const Value &value); static void setterTwoClasses(Lookup *l, ExecutionEngine *engine, Value &object, const Value &value); static void setterFallback(Lookup *l, ExecutionEngine *engine, Value &object, const Value &value); static void setter0(Lookup *l, ExecutionEngine *engine, Value &object, const Value &value); static void setter0Inline(Lookup *l, ExecutionEngine *engine, Value &object, const Value &value); static void setterInsert0(Lookup *l, ExecutionEngine *engine, Value &object, const Value &value); static void setterInsert1(Lookup *l, ExecutionEngine *engine, Value &object, const Value &value); static void setterInsert2(Lookup *l, ExecutionEngine *engine, Value &object, const Value &value); static void setter0setter0(Lookup *l, ExecutionEngine *engine, Value &object, const Value &value); ReturnedValue lookup(const Value &thisObject, Object *obj, PropertyAttributes *attrs); ReturnedValue lookup(const Object *obj, PropertyAttributes *attrs); }; Q_STATIC_ASSERT(std::is_standard_layout::value); // Ensure that these offsets are always at this point to keep generated code compatible // across 32-bit and 64-bit (matters when cross-compiling). Q_STATIC_ASSERT(offsetof(Lookup, indexedGetter) == 0); Q_STATIC_ASSERT(offsetof(Lookup, getter) == 0); Q_STATIC_ASSERT(offsetof(Lookup, engine) == offsetof(Lookup, getter) + QT_POINTER_SIZE); } QT_END_NAMESPACE #endif