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codeql-action/node_modules/enhanced-resolve/lib/ExtensionAliasPlugin.js
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/* | |
MIT License http://www.opensource.org/licenses/mit-license.php | |
Author Ivan Kopeykin @vankop | |
*/ | |
"use strict"; | |
const forEachBail = require("./forEachBail"); | |
/** @typedef {import("./Resolver")} Resolver */ | |
/** @typedef {import("./Resolver").ResolveRequest} ResolveRequest */ | |
/** @typedef {import("./Resolver").ResolveStepHook} ResolveStepHook */ | |
/** @typedef {{ alias: string|string[], extension: string }} ExtensionAliasOption */ | |
module.exports = class ExtensionAliasPlugin { | |
/** | |
* @param {string | ResolveStepHook} source source | |
* @param {ExtensionAliasOption} options options | |
* @param {string | ResolveStepHook} target target | |
*/ | |
constructor(source, options, target) { | |
this.source = source; | |
this.options = options; | |
this.target = target; | |
} | |
/** | |
* @param {Resolver} resolver the resolver | |
* @returns {void} | |
*/ | |
apply(resolver) { | |
const target = resolver.ensureHook(this.target); | |
const { extension, alias } = this.options; | |
resolver | |
.getHook(this.source) | |
.tapAsync("ExtensionAliasPlugin", (request, resolveContext, callback) => { | |
const requestPath = request.request; | |
if (!requestPath || !requestPath.endsWith(extension)) return callback(); | |
const resolve = (alias, callback) => { | |
resolver.doResolve( | |
target, | |
{ | |
...request, | |
request: `${requestPath.slice(0, -extension.length)}${alias}`, | |
fullySpecified: true | |
}, | |
`aliased from extension alias with mapping '${extension}' to '${alias}'`, | |
resolveContext, | |
callback | |
); | |
}; | |
const stoppingCallback = (err, result) => { | |
if (err) return callback(err); | |
if (result) return callback(null, result); | |
// Don't allow other aliasing or raw request | |
return callback(null, null); | |
}; | |
if (typeof alias === "string") { | |
resolve(alias, stoppingCallback); | |
} else if (alias.length > 1) { | |
forEachBail(alias, resolve, stoppingCallback); | |
} else { | |
resolve(alias[0], stoppingCallback); | |
} | |
}); | |
} | |
}; |