[6a3a178] | 1 | "use strict";
|
---|
| 2 |
|
---|
| 3 | Object.defineProperty(exports, "__esModule", {
|
---|
| 4 | value: true
|
---|
| 5 | });
|
---|
| 6 | exports.importAssertions = importAssertions;
|
---|
| 7 |
|
---|
| 8 | var _acorn = _interopRequireWildcard(require("acorn"));
|
---|
| 9 |
|
---|
| 10 | function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function (nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }
|
---|
| 11 |
|
---|
| 12 | function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && 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; }
|
---|
| 13 |
|
---|
| 14 | const leftCurlyBrace = "{".charCodeAt(0);
|
---|
| 15 | const space = " ".charCodeAt(0);
|
---|
| 16 | const keyword = "assert";
|
---|
| 17 | const FUNC_STATEMENT = 1,
|
---|
| 18 | FUNC_HANGING_STATEMENT = 2,
|
---|
| 19 | FUNC_NULLABLE_ID = 4;
|
---|
| 20 |
|
---|
| 21 | function importAssertions(Parser) {
|
---|
| 22 | // Use supplied version acorn version if present, to avoid
|
---|
| 23 | // reference mismatches due to different acorn versions. This
|
---|
| 24 | // allows this plugin to be used with Rollup which supplies
|
---|
| 25 | // its own internal version of acorn and thereby sidesteps
|
---|
| 26 | // the package manager.
|
---|
| 27 | const acorn = Parser.acorn || _acorn;
|
---|
| 28 | const {
|
---|
| 29 | tokTypes: tt,
|
---|
| 30 | TokenType
|
---|
| 31 | } = acorn;
|
---|
| 32 | return class extends Parser {
|
---|
| 33 | constructor(...args) {
|
---|
| 34 | super(...args);
|
---|
| 35 | this.assertToken = new TokenType(keyword);
|
---|
| 36 | }
|
---|
| 37 |
|
---|
| 38 | _codeAt(i) {
|
---|
| 39 | return this.input.charCodeAt(i);
|
---|
| 40 | }
|
---|
| 41 |
|
---|
| 42 | _eat(t) {
|
---|
| 43 | if (this.type !== t) {
|
---|
| 44 | this.unexpected();
|
---|
| 45 | }
|
---|
| 46 |
|
---|
| 47 | this.next();
|
---|
| 48 | }
|
---|
| 49 |
|
---|
| 50 | readToken(code) {
|
---|
| 51 | let i = 0;
|
---|
| 52 |
|
---|
| 53 | for (; i < keyword.length; i++) {
|
---|
| 54 | if (this._codeAt(this.pos + i) !== keyword.charCodeAt(i)) {
|
---|
| 55 | return super.readToken(code);
|
---|
| 56 | }
|
---|
| 57 | } // ensure that the keyword is at the correct location
|
---|
| 58 | // ie `assert{...` or `assert {...`
|
---|
| 59 |
|
---|
| 60 |
|
---|
| 61 | for (;; i++) {
|
---|
| 62 | if (this._codeAt(this.pos + i) === leftCurlyBrace) {
|
---|
| 63 | // Found '{'
|
---|
| 64 | break;
|
---|
| 65 | } else if (this._codeAt(this.pos + i) === space) {
|
---|
| 66 | // white space is allowed between `assert` and `{`, so continue.
|
---|
| 67 | continue;
|
---|
| 68 | } else {
|
---|
| 69 | return super.readToken(code);
|
---|
| 70 | }
|
---|
| 71 | } // If we're inside a dynamic import expression we'll parse
|
---|
| 72 | // the `assert` keyword as a standard object property name
|
---|
| 73 | // ie `import(""./foo.json", { assert: { type: "json" } })`
|
---|
| 74 |
|
---|
| 75 |
|
---|
| 76 | if (this.type.label === "{") {
|
---|
| 77 | return super.readToken(code);
|
---|
| 78 | }
|
---|
| 79 |
|
---|
| 80 | this.pos += keyword.length;
|
---|
| 81 | return this.finishToken(this.assertToken);
|
---|
| 82 | }
|
---|
| 83 |
|
---|
| 84 | parseDynamicImport(node) {
|
---|
| 85 | this.next(); // skip `(`
|
---|
| 86 | // Parse node.source.
|
---|
| 87 |
|
---|
| 88 | node.source = this.parseMaybeAssign();
|
---|
| 89 |
|
---|
| 90 | if (this.eat(tt.comma)) {
|
---|
| 91 | const obj = this.parseObj(false);
|
---|
| 92 | node.arguments = [obj];
|
---|
| 93 | }
|
---|
| 94 |
|
---|
| 95 | this._eat(tt.parenR);
|
---|
| 96 |
|
---|
| 97 | return this.finishNode(node, "ImportExpression");
|
---|
| 98 | } // ported from acorn/src/statement.js pp.parseExport
|
---|
| 99 |
|
---|
| 100 |
|
---|
| 101 | parseExport(node, exports) {
|
---|
| 102 | this.next(); // export * from '...'
|
---|
| 103 |
|
---|
| 104 | if (this.eat(tt.star)) {
|
---|
| 105 | if (this.options.ecmaVersion >= 11) {
|
---|
| 106 | if (this.eatContextual("as")) {
|
---|
| 107 | node.exported = this.parseIdent(true);
|
---|
| 108 | this.checkExport(exports, node.exported.name, this.lastTokStart);
|
---|
| 109 | } else {
|
---|
| 110 | node.exported = null;
|
---|
| 111 | }
|
---|
| 112 | }
|
---|
| 113 |
|
---|
| 114 | this.expectContextual("from");
|
---|
| 115 |
|
---|
| 116 | if (this.type !== tt.string) {
|
---|
| 117 | this.unexpected();
|
---|
| 118 | }
|
---|
| 119 |
|
---|
| 120 | node.source = this.parseExprAtom();
|
---|
| 121 |
|
---|
| 122 | if (this.type === this.assertToken) {
|
---|
| 123 | this.next();
|
---|
| 124 | const assertions = this.parseImportAssertions();
|
---|
| 125 |
|
---|
| 126 | if (assertions) {
|
---|
| 127 | node.assertions = assertions;
|
---|
| 128 | }
|
---|
| 129 | }
|
---|
| 130 |
|
---|
| 131 | this.semicolon();
|
---|
| 132 | return this.finishNode(node, "ExportAllDeclaration");
|
---|
| 133 | }
|
---|
| 134 |
|
---|
| 135 | if (this.eat(tt._default)) {
|
---|
| 136 | // export default ...
|
---|
| 137 | this.checkExport(exports, "default", this.lastTokStart);
|
---|
| 138 | var isAsync;
|
---|
| 139 |
|
---|
| 140 | if (this.type === tt._function || (isAsync = this.isAsyncFunction())) {
|
---|
| 141 | var fNode = this.startNode();
|
---|
| 142 | this.next();
|
---|
| 143 |
|
---|
| 144 | if (isAsync) {
|
---|
| 145 | this.next();
|
---|
| 146 | }
|
---|
| 147 |
|
---|
| 148 | node.declaration = this.parseFunction(fNode, FUNC_STATEMENT | FUNC_NULLABLE_ID, false, isAsync);
|
---|
| 149 | } else if (this.type === tt._class) {
|
---|
| 150 | var cNode = this.startNode();
|
---|
| 151 | node.declaration = this.parseClass(cNode, "nullableID");
|
---|
| 152 | } else {
|
---|
| 153 | node.declaration = this.parseMaybeAssign();
|
---|
| 154 | this.semicolon();
|
---|
| 155 | }
|
---|
| 156 |
|
---|
| 157 | return this.finishNode(node, "ExportDefaultDeclaration");
|
---|
| 158 | } // export var|const|let|function|class ...
|
---|
| 159 |
|
---|
| 160 |
|
---|
| 161 | if (this.shouldParseExportStatement()) {
|
---|
| 162 | node.declaration = this.parseStatement(null);
|
---|
| 163 |
|
---|
| 164 | if (node.declaration.type === "VariableDeclaration") {
|
---|
| 165 | this.checkVariableExport(exports, node.declaration.declarations);
|
---|
| 166 | } else {
|
---|
| 167 | this.checkExport(exports, node.declaration.id.name, node.declaration.id.start);
|
---|
| 168 | }
|
---|
| 169 |
|
---|
| 170 | node.specifiers = [];
|
---|
| 171 | node.source = null;
|
---|
| 172 | } else {
|
---|
| 173 | // export { x, y as z } [from '...']
|
---|
| 174 | node.declaration = null;
|
---|
| 175 | node.specifiers = this.parseExportSpecifiers(exports);
|
---|
| 176 |
|
---|
| 177 | if (this.eatContextual("from")) {
|
---|
| 178 | if (this.type !== tt.string) {
|
---|
| 179 | this.unexpected();
|
---|
| 180 | }
|
---|
| 181 |
|
---|
| 182 | node.source = this.parseExprAtom();
|
---|
| 183 |
|
---|
| 184 | if (this.type === this.assertToken) {
|
---|
| 185 | this.next();
|
---|
| 186 | const assertions = this.parseImportAssertions();
|
---|
| 187 |
|
---|
| 188 | if (assertions) {
|
---|
| 189 | node.assertions = assertions;
|
---|
| 190 | }
|
---|
| 191 | }
|
---|
| 192 | } else {
|
---|
| 193 | for (var i = 0, list = node.specifiers; i < list.length; i += 1) {
|
---|
| 194 | // check for keywords used as local names
|
---|
| 195 | var spec = list[i];
|
---|
| 196 | this.checkUnreserved(spec.local); // check if export is defined
|
---|
| 197 |
|
---|
| 198 | this.checkLocalExport(spec.local);
|
---|
| 199 | }
|
---|
| 200 |
|
---|
| 201 | node.source = null;
|
---|
| 202 | }
|
---|
| 203 |
|
---|
| 204 | this.semicolon();
|
---|
| 205 | }
|
---|
| 206 |
|
---|
| 207 | return this.finishNode(node, "ExportNamedDeclaration");
|
---|
| 208 | }
|
---|
| 209 |
|
---|
| 210 | parseImport(node) {
|
---|
| 211 | this.next(); // import '...'
|
---|
| 212 |
|
---|
| 213 | if (this.type === tt.string) {
|
---|
| 214 | node.specifiers = [];
|
---|
| 215 | node.source = this.parseExprAtom();
|
---|
| 216 | } else {
|
---|
| 217 | node.specifiers = this.parseImportSpecifiers();
|
---|
| 218 | this.expectContextual("from");
|
---|
| 219 | node.source = this.type === tt.string ? this.parseExprAtom() : this.unexpected();
|
---|
| 220 | }
|
---|
| 221 |
|
---|
| 222 | if (this.type === this.assertToken) {
|
---|
| 223 | this.next();
|
---|
| 224 | const assertions = this.parseImportAssertions();
|
---|
| 225 |
|
---|
| 226 | if (assertions) {
|
---|
| 227 | node.assertions = assertions;
|
---|
| 228 | }
|
---|
| 229 | }
|
---|
| 230 |
|
---|
| 231 | this.semicolon();
|
---|
| 232 | return this.finishNode(node, "ImportDeclaration");
|
---|
| 233 | }
|
---|
| 234 |
|
---|
| 235 | parseImportAssertions() {
|
---|
| 236 | this._eat(tt.braceL);
|
---|
| 237 |
|
---|
| 238 | const attrs = this.parseAssertEntries();
|
---|
| 239 |
|
---|
| 240 | this._eat(tt.braceR);
|
---|
| 241 |
|
---|
| 242 | return attrs;
|
---|
| 243 | }
|
---|
| 244 |
|
---|
| 245 | parseAssertEntries() {
|
---|
| 246 | const attrs = [];
|
---|
| 247 | const attrNames = new Set();
|
---|
| 248 |
|
---|
| 249 | do {
|
---|
| 250 | if (this.type === tt.braceR) {
|
---|
| 251 | break;
|
---|
| 252 | }
|
---|
| 253 |
|
---|
| 254 | const node = this.startNode(); // parse AssertionKey : IdentifierName, StringLiteral
|
---|
| 255 |
|
---|
| 256 | let assertionKeyNode;
|
---|
| 257 |
|
---|
| 258 | if (this.type === tt.string) {
|
---|
| 259 | assertionKeyNode = this.parseLiteral(this.value);
|
---|
| 260 | } else {
|
---|
| 261 | assertionKeyNode = this.parseIdent(true);
|
---|
| 262 | }
|
---|
| 263 |
|
---|
| 264 | this.next();
|
---|
| 265 | node.key = assertionKeyNode; // check if we already have an entry for an attribute
|
---|
| 266 | // if a duplicate entry is found, throw an error
|
---|
| 267 | // for now this logic will come into play only when someone declares `type` twice
|
---|
| 268 |
|
---|
| 269 | if (attrNames.has(node.key.name)) {
|
---|
| 270 | this.raise(this.pos, "Duplicated key in assertions");
|
---|
| 271 | }
|
---|
| 272 |
|
---|
| 273 | attrNames.add(node.key.name);
|
---|
| 274 |
|
---|
| 275 | if (this.type !== tt.string) {
|
---|
| 276 | this.raise(this.pos, "Only string is supported as an assertion value");
|
---|
| 277 | }
|
---|
| 278 |
|
---|
| 279 | node.value = this.parseLiteral(this.value);
|
---|
| 280 | attrs.push(this.finishNode(node, "ImportAttribute"));
|
---|
| 281 | } while (this.eat(tt.comma));
|
---|
| 282 |
|
---|
| 283 | return attrs;
|
---|
| 284 | }
|
---|
| 285 |
|
---|
| 286 | };
|
---|
| 287 | } |
---|