diff options
Diffstat (limited to 'src/qml/compiler/qv4bytecodehandler_p.h')
-rw-r--r-- | src/qml/compiler/qv4bytecodehandler_p.h | 60 |
1 files changed, 18 insertions, 42 deletions
diff --git a/src/qml/compiler/qv4bytecodehandler_p.h b/src/qml/compiler/qv4bytecodehandler_p.h index ca6abf3dc3..0a74fc52ed 100644 --- a/src/qml/compiler/qv4bytecodehandler_p.h +++ b/src/qml/compiler/qv4bytecodehandler_p.h @@ -1,41 +1,5 @@ -/**************************************************************************** -** -** Copyright (C) 2018 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. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ +// Copyright (C) 2018 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only #ifndef QV4BYTECODEHANDLER_P_H #define QV4BYTECODEHANDLER_P_H @@ -50,6 +14,8 @@ // // We mean it. // + +#include <private/qtqmlcompilerglobal_p.h> #include <private/qv4instr_moth_p.h> QT_BEGIN_NAMESPACE @@ -75,6 +41,12 @@ namespace Moth { int arg2, \ int arg3, \ int arg4 +#define BYTECODE_HANDLER_DEFINE_ARGS5(arg1, arg2, arg3, arg4, arg5) \ + int arg1, \ + int arg2, \ + int arg3, \ + int arg4, \ + int arg5 #define BYTECODE_HANDLER_DEFINE_VIRTUAL_BYTECODE_HANDLER_INSTRUCTION(name, nargs, ...) \ virtual void generate_##name( \ @@ -84,22 +56,26 @@ namespace Moth { #define BYTECODE_HANDLER_DEFINE_VIRTUAL_BYTECODE_HANDLER(instr) \ INSTR_##instr(BYTECODE_HANDLER_DEFINE_VIRTUAL_BYTECODE_HANDLER) -class ByteCodeHandler +class Q_QML_COMPILER_EXPORT ByteCodeHandler { + Q_DISABLE_COPY_MOVE(ByteCodeHandler) public: + ByteCodeHandler() = default; virtual ~ByteCodeHandler(); void decode(const char *code, uint len); + void reset() { _currentOffset = _nextOffset = 0; } int currentInstructionOffset() const { return _currentOffset; } int nextInstructionOffset() const { return _nextOffset; } - - static std::vector<int> collectLabelsInBytecode(const char *code, uint len); + int absoluteOffset(int relativeOffset) const + { return nextInstructionOffset() + relativeOffset; } protected: FOR_EACH_MOTH_INSTR(BYTECODE_HANDLER_DEFINE_VIRTUAL_BYTECODE_HANDLER) - virtual void startInstruction(Moth::Instr::Type instr) = 0; + enum Verdict { ProcessInstruction, SkipInstruction }; + virtual Verdict startInstruction(Moth::Instr::Type instr) = 0; virtual void endInstruction(Moth::Instr::Type instr) = 0; private: |