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std/node/internal/options.ts

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// Copyright 2018-2022 the Deno authors. All rights reserved. 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.
import { getOptions } from "../internal_binding/node_options.ts";
let optionsMap: Map<string, { value: string }>;
function getOptionsFromBinding() { if (!optionsMap) { ({ options: optionsMap } = getOptions()); }
return optionsMap;}
export function getOptionValue(optionName: string) { const options = getOptionsFromBinding();
if (optionName.startsWith("--no-")) { const option = options.get("--" + optionName.slice(5));
return option && !option.value; }
return options.get(optionName)?.value;}