source: trip-planner-front/node_modules/webpack/lib/dependencies/HarmonyImportDependencyParserPlugin.js

Last change on this file was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

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1/*
2 MIT License http://www.opensource.org/licenses/mit-license.php
3 Author Tobias Koppers @sokra
4*/
5
6"use strict";
7
8const HotModuleReplacementPlugin = require("../HotModuleReplacementPlugin");
9const InnerGraph = require("../optimize/InnerGraph");
10const ConstDependency = require("./ConstDependency");
11const HarmonyAcceptDependency = require("./HarmonyAcceptDependency");
12const HarmonyAcceptImportDependency = require("./HarmonyAcceptImportDependency");
13const HarmonyExports = require("./HarmonyExports");
14const HarmonyImportSideEffectDependency = require("./HarmonyImportSideEffectDependency");
15const HarmonyImportSpecifierDependency = require("./HarmonyImportSpecifierDependency");
16
17/** @typedef {import("estree").ExportAllDeclaration} ExportAllDeclaration */
18/** @typedef {import("estree").ExportNamedDeclaration} ExportNamedDeclaration */
19/** @typedef {import("estree").Identifier} Identifier */
20/** @typedef {import("estree").ImportDeclaration} ImportDeclaration */
21/** @typedef {import("estree").ImportExpression} ImportExpression */
22/** @typedef {import("../javascript/JavascriptParser")} JavascriptParser */
23/** @typedef {import("../optimize/InnerGraph").InnerGraph} InnerGraph */
24/** @typedef {import("../optimize/InnerGraph").TopLevelSymbol} TopLevelSymbol */
25/** @typedef {import("./HarmonyImportDependency")} HarmonyImportDependency */
26
27const harmonySpecifierTag = Symbol("harmony import");
28
29/**
30 * @typedef {Object} HarmonySettings
31 * @property {string[]} ids
32 * @property {string} source
33 * @property {number} sourceOrder
34 * @property {string} name
35 * @property {boolean} await
36 * @property {Record<string, any> | undefined} assertions
37 */
38
39/**
40 * @param {ImportDeclaration | ExportNamedDeclaration | ExportAllDeclaration | ImportExpression} node node with assertions
41 * @returns {Record<string, any> | undefined} assertions
42 */
43function getAssertions(node) {
44 // TODO remove cast when @types/estree has been updated to import assertions
45 const assertions = /** @type {{ assertions?: ImportAttributeNode[] }} */ (
46 node
47 ).assertions;
48 if (assertions === undefined) {
49 return undefined;
50 }
51 const result = {};
52 for (const assertion of assertions) {
53 const key =
54 assertion.key.type === "Identifier"
55 ? assertion.key.name
56 : assertion.key.value;
57 result[key] = assertion.value.value;
58 }
59 return result;
60}
61
62module.exports = class HarmonyImportDependencyParserPlugin {
63 constructor(options) {
64 this.strictExportPresence = options.strictExportPresence;
65 this.strictThisContextOnImports = options.strictThisContextOnImports;
66 }
67
68 /**
69 * @param {JavascriptParser} parser the parser
70 * @returns {void}
71 */
72 apply(parser) {
73 parser.hooks.isPure
74 .for("Identifier")
75 .tap("HarmonyImportDependencyParserPlugin", expression => {
76 const expr = /** @type {Identifier} */ (expression);
77 if (
78 parser.isVariableDefined(expr.name) ||
79 parser.getTagData(expr.name, harmonySpecifierTag)
80 ) {
81 return true;
82 }
83 });
84 parser.hooks.import.tap(
85 "HarmonyImportDependencyParserPlugin",
86 (statement, source) => {
87 parser.state.lastHarmonyImportOrder =
88 (parser.state.lastHarmonyImportOrder || 0) + 1;
89 const clearDep = new ConstDependency(
90 parser.isAsiPosition(statement.range[0]) ? ";" : "",
91 statement.range
92 );
93 clearDep.loc = statement.loc;
94 parser.state.module.addPresentationalDependency(clearDep);
95 parser.unsetAsiPosition(statement.range[1]);
96 const assertions = getAssertions(statement);
97 const sideEffectDep = new HarmonyImportSideEffectDependency(
98 source,
99 parser.state.lastHarmonyImportOrder,
100 assertions
101 );
102 sideEffectDep.loc = statement.loc;
103 parser.state.module.addDependency(sideEffectDep);
104 return true;
105 }
106 );
107 parser.hooks.importSpecifier.tap(
108 "HarmonyImportDependencyParserPlugin",
109 (statement, source, id, name) => {
110 const ids = id === null ? [] : [id];
111 parser.tagVariable(name, harmonySpecifierTag, {
112 name,
113 source,
114 ids,
115 sourceOrder: parser.state.lastHarmonyImportOrder,
116 assertions: getAssertions(statement)
117 });
118 return true;
119 }
120 );
121 parser.hooks.expression
122 .for(harmonySpecifierTag)
123 .tap("HarmonyImportDependencyParserPlugin", expr => {
124 const settings = /** @type {HarmonySettings} */ (parser.currentTagData);
125 const dep = new HarmonyImportSpecifierDependency(
126 settings.source,
127 settings.sourceOrder,
128 settings.ids,
129 settings.name,
130 expr.range,
131 this.strictExportPresence,
132 settings.assertions
133 );
134 dep.shorthand = parser.scope.inShorthand;
135 dep.directImport = true;
136 dep.asiSafe = !parser.isAsiPosition(expr.range[0]);
137 dep.loc = expr.loc;
138 parser.state.module.addDependency(dep);
139 InnerGraph.onUsage(parser.state, e => (dep.usedByExports = e));
140 return true;
141 });
142 parser.hooks.expressionMemberChain
143 .for(harmonySpecifierTag)
144 .tap("HarmonyImportDependencyParserPlugin", (expr, members) => {
145 const settings = /** @type {HarmonySettings} */ (parser.currentTagData);
146 const ids = settings.ids.concat(members);
147 const dep = new HarmonyImportSpecifierDependency(
148 settings.source,
149 settings.sourceOrder,
150 ids,
151 settings.name,
152 expr.range,
153 this.strictExportPresence,
154 settings.assertions
155 );
156 dep.asiSafe = !parser.isAsiPosition(expr.range[0]);
157 dep.loc = expr.loc;
158 parser.state.module.addDependency(dep);
159 InnerGraph.onUsage(parser.state, e => (dep.usedByExports = e));
160 return true;
161 });
162 parser.hooks.callMemberChain
163 .for(harmonySpecifierTag)
164 .tap("HarmonyImportDependencyParserPlugin", (expr, members) => {
165 const { arguments: args, callee } = expr;
166 const settings = /** @type {HarmonySettings} */ (parser.currentTagData);
167 const ids = settings.ids.concat(members);
168 const dep = new HarmonyImportSpecifierDependency(
169 settings.source,
170 settings.sourceOrder,
171 ids,
172 settings.name,
173 callee.range,
174 this.strictExportPresence,
175 settings.assertions
176 );
177 dep.directImport = members.length === 0;
178 dep.call = true;
179 dep.asiSafe = !parser.isAsiPosition(callee.range[0]);
180 // only in case when we strictly follow the spec we need a special case here
181 dep.namespaceObjectAsContext =
182 members.length > 0 && this.strictThisContextOnImports;
183 dep.loc = callee.loc;
184 parser.state.module.addDependency(dep);
185 if (args) parser.walkExpressions(args);
186 InnerGraph.onUsage(parser.state, e => (dep.usedByExports = e));
187 return true;
188 });
189 const { hotAcceptCallback, hotAcceptWithoutCallback } =
190 HotModuleReplacementPlugin.getParserHooks(parser);
191 hotAcceptCallback.tap(
192 "HarmonyImportDependencyParserPlugin",
193 (expr, requests) => {
194 if (!HarmonyExports.isEnabled(parser.state)) {
195 // This is not a harmony module, skip it
196 return;
197 }
198 const dependencies = requests.map(request => {
199 const dep = new HarmonyAcceptImportDependency(request);
200 dep.loc = expr.loc;
201 parser.state.module.addDependency(dep);
202 return dep;
203 });
204 if (dependencies.length > 0) {
205 const dep = new HarmonyAcceptDependency(
206 expr.range,
207 dependencies,
208 true
209 );
210 dep.loc = expr.loc;
211 parser.state.module.addDependency(dep);
212 }
213 }
214 );
215 hotAcceptWithoutCallback.tap(
216 "HarmonyImportDependencyParserPlugin",
217 (expr, requests) => {
218 if (!HarmonyExports.isEnabled(parser.state)) {
219 // This is not a harmony module, skip it
220 return;
221 }
222 const dependencies = requests.map(request => {
223 const dep = new HarmonyAcceptImportDependency(request);
224 dep.loc = expr.loc;
225 parser.state.module.addDependency(dep);
226 return dep;
227 });
228 if (dependencies.length > 0) {
229 const dep = new HarmonyAcceptDependency(
230 expr.range,
231 dependencies,
232 false
233 );
234 dep.loc = expr.loc;
235 parser.state.module.addDependency(dep);
236 }
237 }
238 );
239 }
240};
241
242module.exports.harmonySpecifierTag = harmonySpecifierTag;
243module.exports.getAssertions = getAssertions;
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