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codeql-action/node_modules/enhanced-resolve/lib/SelfReferencePlugin.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"); | |
/** @typedef {import("./Resolver")} Resolver */ | |
/** @typedef {import("./Resolver").ResolveStepHook} ResolveStepHook */ | |
const slashCode = "/".charCodeAt(0); | |
module.exports = class SelfReferencePlugin { | |
/** | |
* @param {string | ResolveStepHook} source source | |
* @param {string | string[]} fieldNamePath name path | |
* @param {string | ResolveStepHook} target target | |
*/ | |
constructor(source, fieldNamePath, target) { | |
this.source = source; | |
this.target = target; | |
this.fieldName = fieldNamePath; | |
} | |
/** | |
* @param {Resolver} resolver the resolver | |
* @returns {void} | |
*/ | |
apply(resolver) { | |
const target = resolver.ensureHook(this.target); | |
resolver | |
.getHook(this.source) | |
.tapAsync("SelfReferencePlugin", (request, resolveContext, callback) => { | |
if (!request.descriptionFilePath) return callback(); | |
const req = request.request; | |
if (!req) return callback(); | |
// Feature is only enabled when an exports field is present | |
const exportsField = DescriptionFileUtils.getField( | |
request.descriptionFileData, | |
this.fieldName | |
); | |
if (!exportsField) return callback(); | |
const name = DescriptionFileUtils.getField( | |
request.descriptionFileData, | |
"name" | |
); | |
if (typeof name !== "string") return callback(); | |
if ( | |
req.startsWith(name) && | |
(req.length === name.length || | |
req.charCodeAt(name.length) === slashCode) | |
) { | |
const remainingRequest = `.${req.slice(name.length)}`; | |
const obj = { | |
...request, | |
request: remainingRequest, | |
path: /** @type {string} */ (request.descriptionFileRoot), | |
relativePath: "." | |
}; | |
resolver.doResolve( | |
target, | |
obj, | |
"self reference", | |
resolveContext, | |
callback | |
); | |
} else { | |
return callback(); | |
} | |
}); | |
} | |
}; |