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codeql-action/node_modules/enhanced-resolve/lib/AliasFieldPlugin.js
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/* | |
MIT License http://www.opensource.org/licenses/mit-license.php | |
Author Tobias Koppers @sokra | |
*/ | |
"use strict"; | |
const DescriptionFileUtils = require("./DescriptionFileUtils"); | |
const getInnerRequest = require("./getInnerRequest"); | |
/** @typedef {import("./Resolver")} Resolver */ | |
/** @typedef {import("./Resolver").ResolveRequest} ResolveRequest */ | |
/** @typedef {import("./Resolver").ResolveStepHook} ResolveStepHook */ | |
module.exports = class AliasFieldPlugin { | |
/** | |
* @param {string | ResolveStepHook} source source | |
* @param {string | Array<string>} field field | |
* @param {string | ResolveStepHook} target target | |
*/ | |
constructor(source, field, target) { | |
this.source = source; | |
this.field = field; | |
this.target = target; | |
} | |
/** | |
* @param {Resolver} resolver the resolver | |
* @returns {void} | |
*/ | |
apply(resolver) { | |
const target = resolver.ensureHook(this.target); | |
resolver | |
.getHook(this.source) | |
.tapAsync("AliasFieldPlugin", (request, resolveContext, callback) => { | |
if (!request.descriptionFileData) return callback(); | |
const innerRequest = getInnerRequest(resolver, request); | |
if (!innerRequest) return callback(); | |
const fieldData = DescriptionFileUtils.getField( | |
request.descriptionFileData, | |
this.field | |
); | |
if (fieldData === null || typeof fieldData !== "object") { | |
if (resolveContext.log) | |
resolveContext.log( | |
"Field '" + | |
this.field + | |
"' doesn't contain a valid alias configuration" | |
); | |
return callback(); | |
} | |
const data = Object.prototype.hasOwnProperty.call( | |
fieldData, | |
innerRequest | |
) | |
? fieldData[innerRequest] | |
: innerRequest.startsWith("./") | |
? fieldData[innerRequest.slice(2)] | |
: undefined; | |
if (data === innerRequest) return callback(); | |
if (data === undefined) return callback(); | |
if (data === false) { | |
/** @type {ResolveRequest} */ | |
const ignoreObj = { | |
...request, | |
path: false | |
}; | |
if (typeof resolveContext.yield === "function") { | |
resolveContext.yield(ignoreObj); | |
return callback(null, null); | |
} | |
return callback(null, ignoreObj); | |
} | |
const obj = { | |
...request, | |
path: request.descriptionFileRoot, | |
request: data, | |
fullySpecified: false | |
}; | |
resolver.doResolve( | |
target, | |
obj, | |
"aliased from description file " + | |
request.descriptionFilePath + | |
" with mapping '" + | |
innerRequest + | |
"' to '" + | |
data + | |
"'", | |
resolveContext, | |
(err, result) => { | |
if (err) return callback(err); | |
// Don't allow other aliasing or raw request | |
if (result === undefined) return callback(null, null); | |
callback(null, result); | |
} | |
); | |
}); | |
} | |
}; |