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39
40#include <private/qv4bytecodehandler_p.h>
41
42QT_USE_NAMESPACE
43using namespace QV4;
44using namespace Moth;
45
46ByteCodeHandler::~ByteCodeHandler()
47{
48}
49
50#define DISPATCH_INSTRUCTION(name, nargs, ...) \
51 generate_##name( \
52 __VA_ARGS__ \
53 );
54
55#define DECODE_AND_DISPATCH(instr) \
56 { \
57 INSTR_##instr(MOTH_DECODE_WITH_BASE) \
58 Q_UNUSED(base_ptr); \
59 _currentOffset = _nextOffset; \
60 _nextOffset = code - start; \
61 if (startInstruction(Instr::Type::instr) == ProcessInstruction) { \
62 INSTR_##instr(DISPATCH) \
63 endInstruction(Instr::Type::instr); \
64 } \
65 continue; \
66 }
67
68void ByteCodeHandler::decode(const char *code, uint len)
69{
70 MOTH_JUMP_TABLE;
71
72 const char *start = code;
73 const char *end = code + len;
74 while (code < end) {
75 MOTH_DISPATCH()
76
77 FOR_EACH_MOTH_INSTR(DECODE_AND_DISPATCH)
78 }
79}
80
81#undef DECODE_AND_DISPATCH
82#undef DISPATCH_INSTRUCTION
83

source code of qtdeclarative/src/qml/compiler/qv4bytecodehandler.cpp