Function parseCode

src/machine.cpp:2281–2342

}

GcCode* parseCode(Thread* t, Stream& s, GcSingleton* pool)
{
  PROTECT(t, pool);

  unsigned maxStack = s.read2();
  unsigned maxLocals = s.read2();
  unsigned length = s.read4();

  if (DebugClassReader) {
    fprintf(stderr,
            "    code: maxStack %d maxLocals %d length %d\n",
            maxStack,
            maxLocals,
            length);
  }

  GcCode* code = makeCode(t, pool, 0, 0, 0, 0, 0, maxStack, maxLocals, length);
  s.read(code->body().begin(), length);
  PROTECT(t, code);

  if (DebugClassReader) {
    disassembleCode("      ", code->body().begin(), length);
  }

  unsigned ehtLength = s.read2();
  if (ehtLength) {
    GcExceptionHandlerTable* eht = makeExceptionHandlerTable(t, ehtLength);
    for (unsigned i = 0; i < ehtLength; ++i) {
      unsigned start = s.read2();
      unsigned end = s.read2();
      unsigned ip = s.read2();
      unsigned catchType = s.read2();
      eht->body()[i] = exceptionHandler(start, end, ip, catchType);
    }

    code->setExceptionHandlerTable(t, eht);
  }

  unsigned attributeCount = s.read2();
  for (unsigned j = 0; j < attributeCount; ++j) {
    GcByteArray* name
        = cast<GcByteArray>(t, singletonObject(t, pool, s.read2() - 1));
    unsigned length = s.read4();

    if (vm::strcmp(reinterpret_cast<const int8_t*>("LineNumberTable"),
                   name->body().begin()) == 0) {
      unsigned lntLength = s.read2();
      GcLineNumberTable* lnt = makeLineNumberTable(t, lntLength);
      for (unsigned i = 0; i < lntLength; ++i) {
        unsigned ip = s.read2();
        unsigned line = s.read2();
        lnt->body()[i] = lineNumber(ip, line);
      }

      code->setLineNumberTable(t, lnt);
    } else {
      s.skip(length);
    }