Method SaveCodeCacheIfNeeded

src/v8runtime/V8Runtime.cpp:341–377

}

bool V8Runtime::SaveCodeCacheIfNeeded(
    const v8::Local<v8::Script> &script,
    const std::string &sourceURL,
    v8::ScriptCompiler::CachedData *cachedData) {
  // caching is for main runtime only
  if (isSharedRuntime_) {
    return false;
  }

  if (cachedData && !cachedData->rejected) {
    return false;
  }

  if (config_->codecacheMode == V8RuntimeConfig::CodecacheMode::kNone) {
    return false;
  }

  v8::HandleScope scopedHandle(isolate_);

  v8::Local<v8::UnboundScript> unboundScript = script->GetUnboundScript();
  std::unique_ptr<v8::ScriptCompiler::CachedData> newCachedData;
  newCachedData.reset(v8::ScriptCompiler::CreateCodeCache(unboundScript));
  if (!newCachedData) {
    return false;
  }

  std::filesystem::path codecachePath(config_->codecacheDir);
  codecachePath /= std::filesystem::path(sourceURL).filename();
  if (auto *file = std::fopen(codecachePath.string().c_str(), "wb")) {
    std::fwrite(newCachedData->data, 1, newCachedData->length, file);
    std::fclose(file);
    return true;
  } else {
    LOG(ERROR) << "Cannot save codecache file: " << codecachePath.string();
    return false;
  }
}

std::unique_ptr<v8::ScriptCompiler::Source> V8Runtime::UseFakeSourceIfNeeded(
    const v8::ScriptOrigin &origin,