Method LogOpcode

src/binary-reader-objdump.cc:657–735

}

void BinaryReaderObjdumpDisassemble::LogOpcode(const char* fmt, ...) {
  // BinaryReaderObjdumpDisassemble is only used to disassembly function bodies
  // so this should never be called for instructions outside of function bodies
  // (i.e. init expresions).
  assert(in_function_body);
  if (skip_next_opcode_) {
    skip_next_opcode_ = false;
    return;
  }
  const Offset immediate_len = state->offset - current_opcode_offset;
  const Offset opcode_size = current_opcode.GetLength();
  const Offset total_size = opcode_size + immediate_len;
  // current_opcode_offset has already read past this opcode; rewind it by the
  // size of this opcode, which may be more than one byte.
  Offset offset = current_opcode_offset - opcode_size;
  const Offset offset_end = offset + total_size;

  bool first_line = true;
  while (offset < offset_end) {
    // Print bytes, but only display a maximum of IMMEDIATE_OCTET_COUNT on each
    // line.
    printf(" %06" PRIzx ":", GetPrintOffset(offset));
    size_t i;
    for (i = 0; offset < offset_end && i < IMMEDIATE_OCTET_COUNT;
         ++i, ++offset) {
      printf(" %02x", data_[offset]);
    }
    // Fill the rest of the remaining space with spaces.
    for (; i < IMMEDIATE_OCTET_COUNT; ++i) {
      printf("   ");
    }
    printf(" | ");

    if (first_line) {
      first_line = false;

      // Print disassembly.
      int indent_level = this->indent_level;
      switch (current_opcode) {
        case Opcode::Else:
        case Opcode::Catch:
        case Opcode::CatchAll:
          indent_level--;
          break;
        default:
          break;
      }
      for (int j = 0; j < indent_level; j++) {
        printf("  ");
      }

      const char* opcode_name = current_opcode.GetName();
      printf("%s", opcode_name);
      if (fmt) {
        printf(" ");
        va_list args;
        va_start(args, fmt);
        vprintf(fmt, args);