128 lines
3.6 KiB
JavaScript
128 lines
3.6 KiB
JavaScript
/*
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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(request, sourceOrder, ids, name, range, assertions, operator) {
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super(request, sourceOrder, ids, name, range, false, assertions);
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this.operator = operator;
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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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}
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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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}
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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 { module, 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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let value;
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const exportsType = connection.module.getExportsType(
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moduleGraph,
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module.buildMeta.strictHarmonyModule
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);
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switch (exportsType) {
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case "default-with-named": {
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if (ids[0] === "default") {
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value =
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ids.length === 1 || exportsInfo.isExportProvided(ids.slice(1));
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} else {
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value = exportsInfo.isExportProvided(ids);
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}
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break;
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}
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case "namespace": {
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if (ids[0] === "__esModule") {
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value = ids.length === 1 || undefined;
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} else {
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value = exportsInfo.isExportProvided(ids);
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}
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break;
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}
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case "dynamic": {
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if (ids[0] !== "default") {
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value = exportsInfo.isExportProvided(ids);
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}
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break;
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}
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// default-only could lead to runtime error, when default value is primitive
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}
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if (typeof value === "boolean") {
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source.replace(dep.range[0], dep.range[1] - 1, ` ${value}`);
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} else {
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const usedName = exportsInfo.getUsedName(ids, runtime);
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const code = this._getCodeForIds(
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dep,
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source,
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templateContext,
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ids.slice(0, -1)
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);
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source.replace(
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dep.range[0],
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dep.range[1] - 1,
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`${
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usedName ? JSON.stringify(usedName[usedName.length - 1]) : '""'
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} in ${code}`
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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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