ext/node/polyfills/internal/options.ts - main - githubmirror/deno

ext/node/polyfills/internal/options.ts
80 строк2 KB
Nathan Whitaker
perf: lazy-load more modules in the snapshot (#34061)
19 май 2026, 02:37
19 май 2026, 02:37eb4061f
// Copyright 2018-2026 the Deno authors. MIT license.
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
(function () {
const { core, primordials } = __bootstrap;
const { getExecArgvOptions, getOptions } = core.loadExtScript(
  "ext:deno_node/internal_binding/node_options.ts",
);
const {
  MapPrototypeGet,
  SafeMap,
  StringPrototypeSlice,
  StringPrototypeStartsWith,
} = primordials;

const dummyOptions = new SafeMap<string, { value: string | boolean }>();

function isWarmupPhase() {
  return !Deno.build;
}

function getOptionsFromBinding() {
  // If Deno.build is not defined, this is in warmup phase.
  if (isWarmupPhase()) {
    return dummyOptions;
  }

  return getOptions().options;
}

function getOptionValue(optionName: string) {
  return getOptionValueFromMap(getOptionsFromBinding(), optionName);
}

function getExecArgvOptionValue(optionName: string) {
  if (isWarmupPhase()) {
    return undefined;
  }
  return getOptionValueFromMap(getExecArgvOptions().options, optionName);
}

function getOptionValueFromMap(
  options: Map<string, { value: string | boolean }>,
  optionName: string,
) {
  if (StringPrototypeStartsWith(optionName, "--no-")) {
    const option = MapPrototypeGet(
      options,
      "--" + StringPrototypeSlice(optionName, 5),
    );

    return option && !option.value;
  }

  return MapPrototypeGet(options, optionName)?.value;
}

return {
  getExecArgvOptionValue,
  getOptionValue,
};
})();