Function SetHeader

source/text.cpp:848–860

Populates a binary stream's |header|. The target environment is specified via |env| and Id bound is via |bound|.

// Populates a binary stream's |header|. The target environment is specified via
// |env| and Id bound is via |bound|.
spv_result_t SetHeader(spv_target_env env, const uint32_t bound,
                       uint32_t* header) {
  if (!header) return SPV_ERROR_INVALID_BINARY;

  header[SPV_INDEX_MAGIC_NUMBER] = spv::MagicNumber;
  header[SPV_INDEX_VERSION_NUMBER] = spvVersionForTargetEnv(env);
  header[SPV_INDEX_GENERATOR_NUMBER] =
      SPV_GENERATOR_WORD(SPV_GENERATOR_KHRONOS_ASSEMBLER, kAssemblerVersion);
  header[SPV_INDEX_BOUND] = bound;
  header[SPV_INDEX_SCHEMA] = 0;  // NOTE: Reserved

  return SPV_SUCCESS;
}

// Collects all numeric ids in the module source into |numeric_ids|.
// This function is essentially a dry-run of spvTextToBinary.