| 1 | // Copyright (C) 2018 The Qt Company Ltd. |
|---|---|
| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
| 3 | |
| 4 | #include <private/qv4bytecodehandler_p.h> |
| 5 | |
| 6 | QT_USE_NAMESPACE |
| 7 | using namespace QV4; |
| 8 | using namespace Moth; |
| 9 | |
| 10 | ByteCodeHandler::~ByteCodeHandler() |
| 11 | { |
| 12 | } |
| 13 | |
| 14 | #define DISPATCH_INSTRUCTION(name, nargs, ...) \ |
| 15 | generate_##name( \ |
| 16 | __VA_ARGS__ \ |
| 17 | ); |
| 18 | |
| 19 | #define DECODE_AND_DISPATCH(instr) \ |
| 20 | { \ |
| 21 | INSTR_##instr(MOTH_DECODE_WITH_BASE) \ |
| 22 | Q_UNUSED(base_ptr); \ |
| 23 | _currentOffset = _nextOffset; \ |
| 24 | _nextOffset = code - start; \ |
| 25 | if (startInstruction(Instr::Type::instr) == ProcessInstruction) { \ |
| 26 | INSTR_##instr(DISPATCH) \ |
| 27 | endInstruction(Instr::Type::instr); \ |
| 28 | } \ |
| 29 | continue; \ |
| 30 | } |
| 31 | |
| 32 | void ByteCodeHandler::decode(const char *code, uint len) |
| 33 | { |
| 34 | MOTH_JUMP_TABLE; |
| 35 | |
| 36 | const char *start = code; |
| 37 | const char *end = code + len; |
| 38 | while (code < end) { |
| 39 | MOTH_DISPATCH() |
| 40 | |
| 41 | FOR_EACH_MOTH_INSTR(DECODE_AND_DISPATCH) |
| 42 | } |
| 43 | } |
| 44 | |
| 45 | #undef DECODE_AND_DISPATCH |
| 46 | #undef DISPATCH_INSTRUCTION |
| 47 |