Function encodeImmediate

source/text.cpp:163–174

Parses an immediate integer from text, guarding against overflow. If successful, adds the parsed value to pInst, advances the context past it, and returns SPV_SUCCESS. Otherwise, leaves pInst alone, emits diagnostics, and returns SPV_ERROR_INVALID_TEXT.

/// and returns SPV_SUCCESS.  Otherwise, leaves pInst alone, emits diagnostics,
/// and returns SPV_ERROR_INVALID_TEXT.
spv_result_t encodeImmediate(spvtools::AssemblyContext* context,
                             const char* text, spv_instruction_t* pInst) {
  assert(*text == '!');
  uint32_t parse_result;
  if (!spvtools::utils::ParseNumber(text + 1, &parse_result)) {
    return context->diagnostic(SPV_ERROR_INVALID_TEXT)
           << "Invalid immediate integer: !" << text + 1;
  }
  context->binaryEncodeU32(parse_result, pInst);
  context->seekForward(static_cast<uint32_t>(strlen(text)));
  return SPV_SUCCESS;
}

}  // anonymous namespace