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codeql-action/node_modules/enhanced-resolve/lib/MainFieldPlugin.js
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/* | |
MIT License http://www.opensource.org/licenses/mit-license.php | |
Author Tobias Koppers @sokra | |
*/ | |
"use strict"; | |
const path = require("path"); | |
const DescriptionFileUtils = require("./DescriptionFileUtils"); | |
/** @typedef {import("./Resolver")} Resolver */ | |
/** @typedef {import("./Resolver").ResolveStepHook} ResolveStepHook */ | |
/** @typedef {{name: string|Array<string>, forceRelative: boolean}} MainFieldOptions */ | |
const alreadyTriedMainField = Symbol("alreadyTriedMainField"); | |
module.exports = class MainFieldPlugin { | |
/** | |
* @param {string | ResolveStepHook} source source | |
* @param {MainFieldOptions} 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); | |
resolver | |
.getHook(this.source) | |
.tapAsync("MainFieldPlugin", (request, resolveContext, callback) => { | |
if ( | |
request.path !== request.descriptionFileRoot || | |
request[alreadyTriedMainField] === request.descriptionFilePath || | |
!request.descriptionFilePath | |
) | |
return callback(); | |
const filename = path.basename(request.descriptionFilePath); | |
let mainModule = DescriptionFileUtils.getField( | |
request.descriptionFileData, | |
this.options.name | |
); | |
if ( | |
!mainModule || | |
typeof mainModule !== "string" || | |
mainModule === "." || | |
mainModule === "./" | |
) { | |
return callback(); | |
} | |
if (this.options.forceRelative && !/^\.\.?\//.test(mainModule)) | |
mainModule = "./" + mainModule; | |
const obj = { | |
...request, | |
request: mainModule, | |
module: false, | |
directory: mainModule.endsWith("/"), | |
[alreadyTriedMainField]: request.descriptionFilePath | |
}; | |
return resolver.doResolve( | |
target, | |
obj, | |
"use " + | |
mainModule + | |
" from " + | |
this.options.name + | |
" in " + | |
filename, | |
resolveContext, | |
callback | |
); | |
}); | |
} | |
}; |