gree_leran/node_modules/webpack/lib/dependencies/ModuleDependency.js

99 lines
2.6 KiB
JavaScript

/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
"use strict";
const Dependency = require("../Dependency");
const DependencyTemplate = require("../DependencyTemplate");
const RawModule = require("../RawModule");
/** @typedef {import("../Dependency").TRANSITIVE} TRANSITIVE */
/** @typedef {import("../Module")} Module */
/** @typedef {import("../javascript/JavascriptParser").Attributes} Attributes */
/** @typedef {import("../serialization/ObjectMiddleware").ObjectDeserializerContext} ObjectDeserializerContext */
/** @typedef {import("../serialization/ObjectMiddleware").ObjectSerializerContext} ObjectSerializerContext */
class ModuleDependency extends Dependency {
/**
* @param {string} request request path which needs resolving
*/
constructor(request) {
super();
this.request = request;
this.userRequest = request;
this.range = undefined;
// TODO move it to subclasses and rename
// assertions must be serialized by subclasses that use it
/** @type {Attributes | undefined} */
this.assertions = undefined;
this._context = undefined;
}
/**
* @returns {string | undefined} a request context
*/
getContext() {
return this._context;
}
/**
* @returns {string | null} an identifier to merge equal requests
*/
getResourceIdentifier() {
let str = `context${this._context || ""}|module${this.request}`;
if (this.assertions !== undefined) {
str += JSON.stringify(this.assertions);
}
return str;
}
/**
* @returns {boolean | TRANSITIVE} true, when changes to the referenced module could affect the referencing module; TRANSITIVE, when changes to the referenced module could affect referencing modules of the referencing module
*/
couldAffectReferencingModule() {
return true;
}
/**
* @param {string} context context directory
* @returns {Module | null} a module
*/
createIgnoredModule(context) {
return new RawModule(
"/* (ignored) */",
`ignored|${context}|${this.request}`,
`${this.request} (ignored)`
);
}
/**
* @param {ObjectSerializerContext} context context
*/
serialize(context) {
const { write } = context;
write(this.request);
write(this.userRequest);
write(this._context);
write(this.range);
super.serialize(context);
}
/**
* @param {ObjectDeserializerContext} context context
*/
deserialize(context) {
const { read } = context;
this.request = read();
this.userRequest = read();
this._context = read();
this.range = read();
super.deserialize(context);
}
}
ModuleDependency.Template = DependencyTemplate;
module.exports = ModuleDependency;