mirror of https://github.com/webpack/webpack.git
104 lines
2.9 KiB
JavaScript
104 lines
2.9 KiB
JavaScript
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/*
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MIT License http://www.opensource.org/licenses/mit-license.php
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Author Ivan Kopeykin @vankop
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*/
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"use strict";
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const makeSerializable = require("../util/makeSerializable");
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const HarmonyImportSpecifierDependency = require("./HarmonyImportSpecifierDependency");
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/** @typedef {import("webpack-sources").ReplaceSource} ReplaceSource */
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/** @typedef {import("../ChunkGraph")} ChunkGraph */
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/** @typedef {import("../Dependency")} Dependency */
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/** @typedef {import("../DependencyTemplate").DependencyTemplateContext} DependencyTemplateContext */
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/**
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* Dependency for static evaluating import specifier. e.g.
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* @example
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* import a from "a";
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* "x" in a;
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* a.x !== undefined; // if x value statically analyzable
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*/
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class HarmonyEvaluatedImportSpecifierDependency extends HarmonyImportSpecifierDependency {
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constructor(
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request,
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sourceOrder,
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ids,
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name,
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range,
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assertions,
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operator,
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value,
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importSpecifierRange
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) {
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super(request, sourceOrder, ids, name, range, false, assertions);
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this.operator = operator;
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this.value = value;
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this.importSpecifierRange = importSpecifierRange;
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}
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get type() {
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return `evaluated X ${this.operator} harmony import specifier`;
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}
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serialize(context) {
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super.serialize(context);
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const { write } = context;
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write(this.operator);
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write(this.value);
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write(this.importSpecifierRange);
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}
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deserialize(context) {
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super.deserialize(context);
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const { read } = context;
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this.operator = read();
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this.value = read();
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this.importSpecifierRange = read();
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}
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}
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makeSerializable(
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HarmonyEvaluatedImportSpecifierDependency,
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"webpack/lib/dependencies/HarmonyEvaluatedImportSpecifierDependency"
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);
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HarmonyEvaluatedImportSpecifierDependency.Template = class HarmonyEvaluatedImportSpecifierDependencyTemplate extends (
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HarmonyImportSpecifierDependency.Template
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) {
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/**
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* @param {Dependency} dependency the dependency for which the template should be applied
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* @param {ReplaceSource} source the current replace source which can be modified
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* @param {DependencyTemplateContext} templateContext the context object
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* @returns {void}
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*/
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apply(dependency, source, templateContext) {
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const dep = /** @type {HarmonyEvaluatedImportSpecifierDependency} */ (
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dependency
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);
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const { moduleGraph, runtime } = templateContext;
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const connection = moduleGraph.getConnection(dep);
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// Skip rendering depending when dependency is conditional
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if (connection && !connection.isTargetActive(runtime)) return;
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const exportsInfo = moduleGraph.getExportsInfo(connection.module);
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const ids = dep.getIds(moduleGraph);
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const value = exportsInfo.isExportProvided(ids);
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if (typeof value === "boolean") {
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source.replace(dep.range[0], dep.range[1] - 1, `${value}`);
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} else {
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this._applyForIds(
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dependency,
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source,
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templateContext,
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ids.slice(0, -1),
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dep.importSpecifierRange
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);
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}
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}
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};
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module.exports = HarmonyEvaluatedImportSpecifierDependency;
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