source: trip-planner-front/node_modules/@babel/helper-define-polyfill-provider/lib/utils.js@ 6c1585f

Last change on this file since 6c1585f was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

initial commit

  • Property mode set to 100644
File size: 5.2 KB
Line 
1"use strict";
2
3exports.__esModule = true;
4exports.intersection = intersection;
5exports.has = has;
6exports.resolveKey = resolveKey;
7exports.resolveSource = resolveSource;
8exports.getImportSource = getImportSource;
9exports.getRequireSource = getRequireSource;
10exports.createUtilsGetter = createUtilsGetter;
11
12var babel = _interopRequireWildcard(require("@babel/core"));
13
14function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function () { return cache; }; return cache; }
15
16function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
17
18const {
19 types: t,
20 template
21} = babel.default || babel;
22
23function intersection(a, b) {
24 const result = new Set();
25 a.forEach(v => b.has(v) && result.add(v));
26 return result;
27}
28
29function has(object, key) {
30 return Object.prototype.hasOwnProperty.call(object, key);
31}
32
33function getType(target) {
34 return Object.prototype.toString.call(target).slice(8, -1);
35}
36
37function resolveId(path) {
38 if (path.isIdentifier() && !path.scope.hasBinding(path.node.name,
39 /* noGlobals */
40 true)) {
41 return path.node.name;
42 }
43
44 const {
45 deopt
46 } = path.evaluate();
47
48 if (deopt && deopt.isIdentifier()) {
49 return deopt.node.name;
50 }
51}
52
53function resolveKey(path, computed = false) {
54 const {
55 node,
56 parent,
57 scope
58 } = path;
59 if (path.isStringLiteral()) return node.value;
60 const {
61 name
62 } = node;
63 const isIdentifier = path.isIdentifier();
64 if (isIdentifier && !(computed || parent.computed)) return name;
65
66 if (computed && path.isMemberExpression() && path.get("object").isIdentifier({
67 name: "Symbol"
68 }) && !scope.hasBinding("Symbol",
69 /* noGlobals */
70 true)) {
71 const sym = resolveKey(path.get("property"), path.node.computed);
72 if (sym) return "Symbol." + sym;
73 }
74
75 if (!isIdentifier || scope.hasBinding(name,
76 /* noGlobals */
77 true)) {
78 const {
79 value
80 } = path.evaluate();
81 if (typeof value === "string") return value;
82 }
83}
84
85function resolveSource(obj) {
86 if (obj.isMemberExpression() && obj.get("property").isIdentifier({
87 name: "prototype"
88 })) {
89 const id = resolveId(obj.get("object"));
90
91 if (id) {
92 return {
93 id,
94 placement: "prototype"
95 };
96 }
97
98 return {
99 id: null,
100 placement: null
101 };
102 }
103
104 const id = resolveId(obj);
105
106 if (id) {
107 return {
108 id,
109 placement: "static"
110 };
111 }
112
113 const {
114 value
115 } = obj.evaluate();
116
117 if (value !== undefined) {
118 return {
119 id: getType(value),
120 placement: "prototype"
121 };
122 } else if (obj.isRegExpLiteral()) {
123 return {
124 id: "RegExp",
125 placement: "prototype"
126 };
127 } else if (obj.isFunction()) {
128 return {
129 id: "Function",
130 placement: "prototype"
131 };
132 }
133
134 return {
135 id: null,
136 placement: null
137 };
138}
139
140function getImportSource({
141 node
142}) {
143 if (node.specifiers.length === 0) return node.source.value;
144}
145
146function getRequireSource({
147 node
148}) {
149 if (!t.isExpressionStatement(node)) return;
150 const {
151 expression
152 } = node;
153 const isRequire = t.isCallExpression(expression) && t.isIdentifier(expression.callee) && expression.callee.name === "require" && expression.arguments.length === 1 && t.isStringLiteral(expression.arguments[0]);
154 if (isRequire) return expression.arguments[0].value;
155}
156
157function hoist(node) {
158 node._blockHoist = 3;
159 return node;
160}
161
162function createUtilsGetter(cache) {
163 return path => {
164 const prog = path.findParent(p => p.isProgram());
165 return {
166 injectGlobalImport(url) {
167 cache.storeAnonymous(prog, url, (isScript, source) => {
168 return isScript ? template.statement.ast`require(${source})` : t.importDeclaration([], source);
169 });
170 },
171
172 injectNamedImport(url, name, hint = name) {
173 return cache.storeNamed(prog, url, name, (isScript, source, name) => {
174 const id = prog.scope.generateUidIdentifier(hint);
175 return {
176 node: isScript ? hoist(template.statement.ast`
177 var ${id} = require(${source}).${name}
178 `) : t.importDeclaration([t.importSpecifier(id, name)], source),
179 name: id.name
180 };
181 });
182 },
183
184 injectDefaultImport(url, hint = url) {
185 return cache.storeNamed(prog, url, "default", (isScript, source) => {
186 const id = prog.scope.generateUidIdentifier(hint);
187 return {
188 node: isScript ? hoist(template.statement.ast`var ${id} = require(${source})`) : t.importDeclaration([t.importDefaultSpecifier(id)], source),
189 name: id.name
190 };
191 });
192 }
193
194 };
195 };
196}
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