source: trip-planner-front/node_modules/@babel/generator/lib/printer.js@ 571e0df

Last change on this file since 571e0df was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

initial commit
  • Property mode set to 100644
File size: 11.9 KB
Line 
1"use strict";
2
3Object.defineProperty(exports, "__esModule", {
4 value: true
5});
6exports.default = void 0;
7
8var _buffer = require("./buffer");
9
10var n = require("./node");
11
12var t = require("@babel/types");
13
14var generatorFunctions = require("./generators");
15
16const SCIENTIFIC_NOTATION = /e/i;
17const ZERO_DECIMAL_INTEGER = /\.0+$/;
18const NON_DECIMAL_LITERAL = /^0[box]/;
19const PURE_ANNOTATION_RE = /^\s*[@#]__PURE__\s*$/;
20
21class Printer {
22 constructor(format, map) {
23 this.inForStatementInitCounter = 0;
24 this._printStack = [];
25 this._indent = 0;
26 this._insideAux = false;
27 this._parenPushNewlineState = null;
28 this._noLineTerminator = false;
29 this._printAuxAfterOnNextUserNode = false;
30 this._printedComments = new WeakSet();
31 this._endsWithInteger = false;
32 this._endsWithWord = false;
33 this.format = format;
34 this._buf = new _buffer.default(map);
35 }
36
37 generate(ast) {
38 this.print(ast);
39
40 this._maybeAddAuxComment();
41
42 return this._buf.get();
43 }
44
45 indent() {
46 if (this.format.compact || this.format.concise) return;
47 this._indent++;
48 }
49
50 dedent() {
51 if (this.format.compact || this.format.concise) return;
52 this._indent--;
53 }
54
55 semicolon(force = false) {
56 this._maybeAddAuxComment();
57
58 this._append(";", !force);
59 }
60
61 rightBrace() {
62 if (this.format.minified) {
63 this._buf.removeLastSemicolon();
64 }
65
66 this.token("}");
67 }
68
69 space(force = false) {
70 if (this.format.compact) return;
71
72 if (this._buf.hasContent() && !this.endsWith(" ") && !this.endsWith("\n") || force) {
73 this._space();
74 }
75 }
76
77 word(str) {
78 if (this._endsWithWord || this.endsWith("/") && str.indexOf("/") === 0) {
79 this._space();
80 }
81
82 this._maybeAddAuxComment();
83
84 this._append(str);
85
86 this._endsWithWord = true;
87 }
88
89 number(str) {
90 this.word(str);
91 this._endsWithInteger = Number.isInteger(+str) && !NON_DECIMAL_LITERAL.test(str) && !SCIENTIFIC_NOTATION.test(str) && !ZERO_DECIMAL_INTEGER.test(str) && str[str.length - 1] !== ".";
92 }
93
94 token(str) {
95 if (str === "--" && this.endsWith("!") || str[0] === "+" && this.endsWith("+") || str[0] === "-" && this.endsWith("-") || str[0] === "." && this._endsWithInteger) {
96 this._space();
97 }
98
99 this._maybeAddAuxComment();
100
101 this._append(str);
102 }
103
104 newline(i) {
105 if (this.format.retainLines || this.format.compact) return;
106
107 if (this.format.concise) {
108 this.space();
109 return;
110 }
111
112 if (this.endsWith("\n\n")) return;
113 if (typeof i !== "number") i = 1;
114 i = Math.min(2, i);
115 if (this.endsWith("{\n") || this.endsWith(":\n")) i--;
116 if (i <= 0) return;
117
118 for (let j = 0; j < i; j++) {
119 this._newline();
120 }
121 }
122
123 endsWith(str) {
124 return this._buf.endsWith(str);
125 }
126
127 removeTrailingNewline() {
128 this._buf.removeTrailingNewline();
129 }
130
131 exactSource(loc, cb) {
132 this._catchUp("start", loc);
133
134 this._buf.exactSource(loc, cb);
135 }
136
137 source(prop, loc) {
138 this._catchUp(prop, loc);
139
140 this._buf.source(prop, loc);
141 }
142
143 withSource(prop, loc, cb) {
144 this._catchUp(prop, loc);
145
146 this._buf.withSource(prop, loc, cb);
147 }
148
149 _space() {
150 this._append(" ", true);
151 }
152
153 _newline() {
154 this._append("\n", true);
155 }
156
157 _append(str, queue = false) {
158 this._maybeAddParen(str);
159
160 this._maybeIndent(str);
161
162 if (queue) this._buf.queue(str);else this._buf.append(str);
163 this._endsWithWord = false;
164 this._endsWithInteger = false;
165 }
166
167 _maybeIndent(str) {
168 if (this._indent && this.endsWith("\n") && str[0] !== "\n") {
169 this._buf.queue(this._getIndent());
170 }
171 }
172
173 _maybeAddParen(str) {
174 const parenPushNewlineState = this._parenPushNewlineState;
175 if (!parenPushNewlineState) return;
176 let i;
177
178 for (i = 0; i < str.length && str[i] === " "; i++) continue;
179
180 if (i === str.length) {
181 return;
182 }
183
184 const cha = str[i];
185
186 if (cha !== "\n") {
187 if (cha !== "/" || i + 1 === str.length) {
188 this._parenPushNewlineState = null;
189 return;
190 }
191
192 const chaPost = str[i + 1];
193
194 if (chaPost === "*") {
195 if (PURE_ANNOTATION_RE.test(str.slice(i + 2, str.length - 2))) {
196 return;
197 }
198 } else if (chaPost !== "/") {
199 this._parenPushNewlineState = null;
200 return;
201 }
202 }
203
204 this.token("(");
205 this.indent();
206 parenPushNewlineState.printed = true;
207 }
208
209 _catchUp(prop, loc) {
210 if (!this.format.retainLines) return;
211 const pos = loc ? loc[prop] : null;
212
213 if ((pos == null ? void 0 : pos.line) != null) {
214 const count = pos.line - this._buf.getCurrentLine();
215
216 for (let i = 0; i < count; i++) {
217 this._newline();
218 }
219 }
220 }
221
222 _getIndent() {
223 return this.format.indent.style.repeat(this._indent);
224 }
225
226 startTerminatorless(isLabel = false) {
227 if (isLabel) {
228 this._noLineTerminator = true;
229 return null;
230 } else {
231 return this._parenPushNewlineState = {
232 printed: false
233 };
234 }
235 }
236
237 endTerminatorless(state) {
238 this._noLineTerminator = false;
239
240 if (state != null && state.printed) {
241 this.dedent();
242 this.newline();
243 this.token(")");
244 }
245 }
246
247 print(node, parent) {
248 if (!node) return;
249 const oldConcise = this.format.concise;
250
251 if (node._compact) {
252 this.format.concise = true;
253 }
254
255 const printMethod = this[node.type];
256
257 if (!printMethod) {
258 throw new ReferenceError(`unknown node of type ${JSON.stringify(node.type)} with constructor ${JSON.stringify(node == null ? void 0 : node.constructor.name)}`);
259 }
260
261 this._printStack.push(node);
262
263 const oldInAux = this._insideAux;
264 this._insideAux = !node.loc;
265
266 this._maybeAddAuxComment(this._insideAux && !oldInAux);
267
268 let needsParens = n.needsParens(node, parent, this._printStack);
269
270 if (this.format.retainFunctionParens && node.type === "FunctionExpression" && node.extra && node.extra.parenthesized) {
271 needsParens = true;
272 }
273
274 if (needsParens) this.token("(");
275
276 this._printLeadingComments(node);
277
278 const loc = t.isProgram(node) || t.isFile(node) ? null : node.loc;
279 this.withSource("start", loc, () => {
280 printMethod.call(this, node, parent);
281 });
282
283 this._printTrailingComments(node);
284
285 if (needsParens) this.token(")");
286
287 this._printStack.pop();
288
289 this.format.concise = oldConcise;
290 this._insideAux = oldInAux;
291 }
292
293 _maybeAddAuxComment(enteredPositionlessNode) {
294 if (enteredPositionlessNode) this._printAuxBeforeComment();
295 if (!this._insideAux) this._printAuxAfterComment();
296 }
297
298 _printAuxBeforeComment() {
299 if (this._printAuxAfterOnNextUserNode) return;
300 this._printAuxAfterOnNextUserNode = true;
301 const comment = this.format.auxiliaryCommentBefore;
302
303 if (comment) {
304 this._printComment({
305 type: "CommentBlock",
306 value: comment
307 });
308 }
309 }
310
311 _printAuxAfterComment() {
312 if (!this._printAuxAfterOnNextUserNode) return;
313 this._printAuxAfterOnNextUserNode = false;
314 const comment = this.format.auxiliaryCommentAfter;
315
316 if (comment) {
317 this._printComment({
318 type: "CommentBlock",
319 value: comment
320 });
321 }
322 }
323
324 getPossibleRaw(node) {
325 const extra = node.extra;
326
327 if (extra && extra.raw != null && extra.rawValue != null && node.value === extra.rawValue) {
328 return extra.raw;
329 }
330 }
331
332 printJoin(nodes, parent, opts = {}) {
333 if (!(nodes != null && nodes.length)) return;
334 if (opts.indent) this.indent();
335 const newlineOpts = {
336 addNewlines: opts.addNewlines
337 };
338
339 for (let i = 0; i < nodes.length; i++) {
340 const node = nodes[i];
341 if (!node) continue;
342 if (opts.statement) this._printNewline(true, node, parent, newlineOpts);
343 this.print(node, parent);
344
345 if (opts.iterator) {
346 opts.iterator(node, i);
347 }
348
349 if (opts.separator && i < nodes.length - 1) {
350 opts.separator.call(this);
351 }
352
353 if (opts.statement) this._printNewline(false, node, parent, newlineOpts);
354 }
355
356 if (opts.indent) this.dedent();
357 }
358
359 printAndIndentOnComments(node, parent) {
360 const indent = node.leadingComments && node.leadingComments.length > 0;
361 if (indent) this.indent();
362 this.print(node, parent);
363 if (indent) this.dedent();
364 }
365
366 printBlock(parent) {
367 const node = parent.body;
368
369 if (!t.isEmptyStatement(node)) {
370 this.space();
371 }
372
373 this.print(node, parent);
374 }
375
376 _printTrailingComments(node) {
377 this._printComments(this._getComments(false, node));
378 }
379
380 _printLeadingComments(node) {
381 this._printComments(this._getComments(true, node), true);
382 }
383
384 printInnerComments(node, indent = true) {
385 var _node$innerComments;
386
387 if (!((_node$innerComments = node.innerComments) != null && _node$innerComments.length)) return;
388 if (indent) this.indent();
389
390 this._printComments(node.innerComments);
391
392 if (indent) this.dedent();
393 }
394
395 printSequence(nodes, parent, opts = {}) {
396 opts.statement = true;
397 return this.printJoin(nodes, parent, opts);
398 }
399
400 printList(items, parent, opts = {}) {
401 if (opts.separator == null) {
402 opts.separator = commaSeparator;
403 }
404
405 return this.printJoin(items, parent, opts);
406 }
407
408 _printNewline(leading, node, parent, opts) {
409 if (this.format.retainLines || this.format.compact) return;
410
411 if (this.format.concise) {
412 this.space();
413 return;
414 }
415
416 let lines = 0;
417
418 if (this._buf.hasContent()) {
419 if (!leading) lines++;
420 if (opts.addNewlines) lines += opts.addNewlines(leading, node) || 0;
421 const needs = leading ? n.needsWhitespaceBefore : n.needsWhitespaceAfter;
422 if (needs(node, parent)) lines++;
423 }
424
425 this.newline(lines);
426 }
427
428 _getComments(leading, node) {
429 return node && (leading ? node.leadingComments : node.trailingComments) || [];
430 }
431
432 _printComment(comment, skipNewLines) {
433 if (!this.format.shouldPrintComment(comment.value)) return;
434 if (comment.ignore) return;
435 if (this._printedComments.has(comment)) return;
436
437 this._printedComments.add(comment);
438
439 const isBlockComment = comment.type === "CommentBlock";
440 const printNewLines = isBlockComment && !skipNewLines && !this._noLineTerminator;
441 if (printNewLines && this._buf.hasContent()) this.newline(1);
442 if (!this.endsWith("[") && !this.endsWith("{")) this.space();
443 let val = !isBlockComment && !this._noLineTerminator ? `//${comment.value}\n` : `/*${comment.value}*/`;
444
445 if (isBlockComment && this.format.indent.adjustMultilineComment) {
446 var _comment$loc;
447
448 const offset = (_comment$loc = comment.loc) == null ? void 0 : _comment$loc.start.column;
449
450 if (offset) {
451 const newlineRegex = new RegExp("\\n\\s{1," + offset + "}", "g");
452 val = val.replace(newlineRegex, "\n");
453 }
454
455 const indentSize = Math.max(this._getIndent().length, this.format.retainLines ? 0 : this._buf.getCurrentColumn());
456 val = val.replace(/\n(?!$)/g, `\n${" ".repeat(indentSize)}`);
457 }
458
459 if (this.endsWith("/")) this._space();
460 this.withSource("start", comment.loc, () => {
461 this._append(val);
462 });
463 if (printNewLines) this.newline(1);
464 }
465
466 _printComments(comments, inlinePureAnnotation) {
467 if (!(comments != null && comments.length)) return;
468
469 if (inlinePureAnnotation && comments.length === 1 && PURE_ANNOTATION_RE.test(comments[0].value)) {
470 this._printComment(comments[0], this._buf.hasContent() && !this.endsWith("\n"));
471 } else {
472 for (const comment of comments) {
473 this._printComment(comment);
474 }
475 }
476 }
477
478 printAssertions(node) {
479 var _node$assertions;
480
481 if ((_node$assertions = node.assertions) != null && _node$assertions.length) {
482 this.space();
483 this.word("assert");
484 this.space();
485 this.token("{");
486 this.space();
487 this.printList(node.assertions, node);
488 this.space();
489 this.token("}");
490 }
491 }
492
493}
494
495Object.assign(Printer.prototype, generatorFunctions);
496{
497 Printer.prototype.Noop = function Noop() {};
498}
499var _default = Printer;
500exports.default = _default;
501
502function commaSeparator() {
503 this.token(",");
504 this.space();
505}
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