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eb39fafa DC |
1 | /** |
2 | * @fileoverview Tests for no-invalid-this rule. | |
3 | * @author Toru Nagashima | |
4 | */ | |
5 | ||
6 | "use strict"; | |
7 | ||
8 | //------------------------------------------------------------------------------ | |
9 | // Requirements | |
10 | //------------------------------------------------------------------------------ | |
11 | ||
5422a9cc TL |
12 | const merge = require("lodash.merge"); |
13 | ||
eb39fafa DC |
14 | const rule = require("../../../lib/rules/no-invalid-this"); |
15 | const { RuleTester } = require("../../../lib/rule-tester"); | |
16 | ||
17 | //------------------------------------------------------------------------------ | |
18 | // Helpers | |
19 | //------------------------------------------------------------------------------ | |
20 | ||
21 | /** | |
22 | * A constant value for non strict mode environment. | |
23 | * @returns {void} | |
24 | */ | |
25 | function NORMAL() { | |
26 | ||
27 | // do nothing. | |
28 | } | |
29 | ||
30 | /** | |
31 | * A constant value for strict mode environment. | |
32 | * This modifies pattern object to make strict mode. | |
33 | * @param {Object} pattern A pattern object to modify. | |
34 | * @returns {void} | |
35 | */ | |
36 | function USE_STRICT(pattern) { | |
37 | pattern.code = `"use strict"; ${pattern.code}`; | |
38 | } | |
39 | ||
40 | /** | |
41 | * A constant value for implied strict mode. | |
42 | * This modifies pattern object to impose strict mode. | |
43 | * @param {Object} pattern A pattern object to modify. | |
44 | * @returns {void} | |
45 | */ | |
46 | function IMPLIED_STRICT(pattern) { | |
47 | pattern.code = `/* implied strict mode */ ${pattern.code}`; | |
48 | pattern.parserOptions.ecmaFeatures = pattern.parserOptions.ecmaFeatures || {}; | |
49 | pattern.parserOptions.ecmaFeatures.impliedStrict = true; | |
50 | } | |
51 | ||
52 | /** | |
53 | * A constant value for modules environment. | |
54 | * This modifies pattern object to make modules. | |
55 | * @param {Object} pattern A pattern object to modify. | |
56 | * @returns {void} | |
57 | */ | |
58 | function MODULES(pattern) { | |
59 | pattern.code = `/* modules */ ${pattern.code}`; | |
60 | pattern.parserOptions.sourceType = "module"; | |
61 | } | |
62 | ||
63 | /** | |
64 | * Extracts patterns each condition for a specified type. The type is `valid` or `invalid`. | |
65 | * @param {Object[]} patterns Original patterns. | |
66 | * @param {string} type One of `"valid"` or `"invalid"`. | |
67 | * @returns {Object[]} Test patterns. | |
68 | */ | |
69 | function extractPatterns(patterns, type) { | |
70 | ||
71 | // Clone and apply the pattern environment. | |
72 | const patternsList = patterns.map(pattern => pattern[type].map(applyCondition => { | |
5422a9cc | 73 | const thisPattern = merge({}, pattern); |
eb39fafa DC |
74 | |
75 | applyCondition(thisPattern); | |
76 | ||
77 | if (type === "valid") { | |
78 | thisPattern.errors = []; | |
79 | } else { | |
80 | thisPattern.code += " /* should error */"; | |
81 | } | |
82 | ||
5422a9cc TL |
83 | delete thisPattern.valid; |
84 | delete thisPattern.invalid; | |
85 | ||
86 | return thisPattern; | |
eb39fafa DC |
87 | })); |
88 | ||
89 | // Flatten. | |
90 | return [].concat(...patternsList); | |
91 | } | |
92 | ||
93 | ||
94 | //------------------------------------------------------------------------------ | |
95 | // Tests | |
96 | //------------------------------------------------------------------------------ | |
97 | ||
98 | const errors = [ | |
99 | { messageId: "unexpectedThis", type: "ThisExpression" }, | |
100 | { messageId: "unexpectedThis", type: "ThisExpression" } | |
101 | ]; | |
102 | ||
103 | const patterns = [ | |
104 | ||
105 | // Global. | |
106 | { | |
107 | code: "console.log(this); z(x => console.log(x, this));", | |
108 | parserOptions: { ecmaVersion: 6 }, | |
109 | errors, | |
110 | valid: [NORMAL], | |
111 | invalid: [USE_STRICT, IMPLIED_STRICT, MODULES] | |
112 | }, | |
113 | { | |
114 | code: "console.log(this); z(x => console.log(x, this));", | |
115 | parserOptions: { | |
116 | ecmaVersion: 6, | |
117 | ecmaFeatures: { globalReturn: true } | |
118 | }, | |
119 | errors, | |
120 | valid: [NORMAL], | |
121 | invalid: [USE_STRICT, IMPLIED_STRICT, MODULES] | |
122 | }, | |
123 | ||
124 | // IIFE. | |
125 | { | |
126 | code: "(function() { console.log(this); z(x => console.log(x, this)); })();", | |
127 | parserOptions: { ecmaVersion: 6 }, | |
128 | errors, | |
129 | valid: [NORMAL], | |
130 | invalid: [USE_STRICT, IMPLIED_STRICT, MODULES] | |
131 | }, | |
132 | ||
133 | // Just functions. | |
134 | { | |
135 | code: "function foo() { console.log(this); z(x => console.log(x, this)); }", | |
136 | parserOptions: { ecmaVersion: 6 }, | |
137 | errors, | |
138 | valid: [NORMAL], | |
139 | invalid: [USE_STRICT, IMPLIED_STRICT, MODULES] | |
140 | }, | |
141 | { | |
142 | code: "function foo() { console.log(this); z(x => console.log(x, this)); }", | |
143 | parserOptions: { ecmaVersion: 6 }, | |
144 | options: [{ capIsConstructor: false }], // test that the option doesn't reverse the logic and mistakenly allows lowercase functions | |
145 | errors, | |
146 | valid: [NORMAL], | |
147 | invalid: [USE_STRICT, IMPLIED_STRICT, MODULES] | |
148 | }, | |
149 | { | |
150 | code: "function Foo() { console.log(this); z(x => console.log(x, this)); }", | |
151 | parserOptions: { ecmaVersion: 6 }, | |
152 | options: [{ capIsConstructor: false }], | |
153 | errors, | |
154 | valid: [NORMAL], | |
155 | invalid: [USE_STRICT, IMPLIED_STRICT, MODULES] | |
156 | }, | |
157 | { | |
158 | code: "function foo() { \"use strict\"; console.log(this); z(x => console.log(x, this)); }", | |
159 | parserOptions: { ecmaVersion: 6 }, | |
160 | errors, | |
161 | valid: [], | |
162 | invalid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES] | |
163 | }, | |
164 | { | |
165 | code: "function Foo() { \"use strict\"; console.log(this); z(x => console.log(x, this)); }", | |
166 | parserOptions: { ecmaVersion: 6 }, | |
167 | options: [{ capIsConstructor: false }], | |
168 | errors, | |
169 | valid: [], | |
170 | invalid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES] | |
171 | }, | |
172 | { | |
173 | code: "return function() { console.log(this); z(x => console.log(x, this)); };", | |
174 | parserOptions: { | |
175 | ecmaVersion: 6, | |
176 | ecmaFeatures: { globalReturn: true } | |
177 | }, | |
178 | errors, | |
179 | valid: [NORMAL], | |
180 | invalid: [USE_STRICT, IMPLIED_STRICT] // modules cannot return on global. | |
181 | }, | |
182 | { | |
183 | code: "var foo = (function() { console.log(this); z(x => console.log(x, this)); }).bar(obj);", | |
184 | parserOptions: { ecmaVersion: 6 }, | |
185 | errors, | |
186 | valid: [NORMAL], | |
187 | invalid: [USE_STRICT, IMPLIED_STRICT, MODULES] | |
188 | }, | |
189 | ||
190 | // Functions in methods. | |
191 | { | |
192 | code: "var obj = {foo: function() { function foo() { console.log(this); z(x => console.log(x, this)); } foo(); }};", | |
193 | parserOptions: { ecmaVersion: 6 }, | |
194 | errors, | |
195 | valid: [NORMAL], | |
196 | invalid: [USE_STRICT, IMPLIED_STRICT, MODULES] | |
197 | }, | |
198 | { | |
199 | code: "var obj = {foo() { function foo() { console.log(this); z(x => console.log(x, this)); } foo(); }};", | |
200 | parserOptions: { ecmaVersion: 6 }, | |
201 | errors, | |
202 | valid: [NORMAL], | |
203 | invalid: [USE_STRICT, IMPLIED_STRICT, MODULES] | |
204 | }, | |
205 | { | |
206 | code: "var obj = {foo: function() { return function() { console.log(this); z(x => console.log(x, this)); }; }};", | |
207 | parserOptions: { ecmaVersion: 6 }, | |
208 | errors, | |
209 | valid: [NORMAL], | |
210 | invalid: [USE_STRICT, IMPLIED_STRICT, MODULES] | |
211 | }, | |
212 | { | |
213 | code: "var obj = {foo: function() { \"use strict\"; return function() { console.log(this); z(x => console.log(x, this)); }; }};", | |
214 | parserOptions: { ecmaVersion: 6 }, | |
215 | errors, | |
216 | valid: [], | |
217 | invalid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES] | |
218 | }, | |
219 | { | |
220 | code: "obj.foo = function() { return function() { console.log(this); z(x => console.log(x, this)); }; };", | |
221 | parserOptions: { ecmaVersion: 6 }, | |
222 | errors, | |
223 | valid: [NORMAL], | |
224 | invalid: [USE_STRICT, IMPLIED_STRICT, MODULES] | |
225 | }, | |
226 | { | |
227 | code: "obj.foo = function() { \"use strict\"; return function() { console.log(this); z(x => console.log(x, this)); }; };", | |
228 | parserOptions: { ecmaVersion: 6 }, | |
229 | errors, | |
230 | valid: [], | |
231 | invalid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES] | |
232 | }, | |
233 | { | |
234 | code: "class A { foo() { return function() { console.log(this); z(x => console.log(x, this)); }; } }", | |
235 | parserOptions: { ecmaVersion: 6 }, | |
236 | errors, | |
237 | valid: [], | |
238 | invalid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES] | |
239 | }, | |
240 | ||
241 | // Class Static methods. | |
242 | { | |
243 | code: "class A {static foo() { console.log(this); z(x => console.log(x, this)); }};", | |
244 | parserOptions: { ecmaVersion: 6 }, | |
245 | errors, | |
246 | valid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES], | |
247 | invalid: [] | |
248 | }, | |
249 | ||
250 | // Constructors. | |
251 | { | |
252 | code: "function Foo() { console.log(this); z(x => console.log(x, this)); }", | |
253 | parserOptions: { ecmaVersion: 6 }, | |
254 | valid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES], | |
255 | invalid: [] | |
256 | }, | |
257 | { | |
258 | code: "function Foo() { console.log(this); z(x => console.log(x, this)); }", | |
259 | parserOptions: { ecmaVersion: 6 }, | |
260 | options: [{}], // test the default value in schema | |
261 | valid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES], | |
262 | invalid: [] | |
263 | }, | |
264 | { | |
265 | code: "function Foo() { console.log(this); z(x => console.log(x, this)); }", | |
266 | parserOptions: { ecmaVersion: 6 }, | |
267 | options: [{ capIsConstructor: true }], // test explicitly set option to the default value | |
268 | valid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES], | |
269 | invalid: [] | |
270 | }, | |
271 | { | |
272 | code: "var Foo = function Foo() { console.log(this); z(x => console.log(x, this)); };", | |
273 | parserOptions: { ecmaVersion: 6 }, | |
274 | valid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES], | |
275 | invalid: [] | |
276 | }, | |
277 | { | |
278 | code: "class A {constructor() { console.log(this); z(x => console.log(x, this)); }};", | |
279 | parserOptions: { ecmaVersion: 6 }, | |
280 | valid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES], | |
281 | invalid: [] | |
282 | }, | |
283 | ||
284 | // On a property. | |
285 | { | |
286 | code: "var obj = {foo: function() { console.log(this); z(x => console.log(x, this)); }};", | |
287 | parserOptions: { ecmaVersion: 6 }, | |
288 | valid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES], | |
289 | invalid: [] | |
290 | }, | |
291 | { | |
292 | code: "var obj = {foo() { console.log(this); z(x => console.log(x, this)); }};", | |
293 | parserOptions: { ecmaVersion: 6 }, | |
294 | valid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES], | |
295 | invalid: [] | |
296 | }, | |
297 | { | |
298 | code: "var obj = {foo: foo || function() { console.log(this); z(x => console.log(x, this)); }};", | |
299 | parserOptions: { ecmaVersion: 6 }, | |
300 | valid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES], | |
301 | invalid: [] | |
302 | }, | |
303 | { | |
304 | code: "var obj = {foo: hasNative ? foo : function() { console.log(this); z(x => console.log(x, this)); }};", | |
305 | parserOptions: { ecmaVersion: 6 }, | |
306 | valid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES], | |
307 | invalid: [] | |
308 | }, | |
309 | { | |
310 | code: "var obj = {foo: (function() { return function() { console.log(this); z(x => console.log(x, this)); }; })()};", | |
311 | parserOptions: { ecmaVersion: 6 }, | |
312 | valid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES], | |
313 | invalid: [] | |
314 | }, | |
315 | { | |
316 | code: "Object.defineProperty(obj, \"foo\", {value: function() { console.log(this); z(x => console.log(x, this)); }})", | |
317 | parserOptions: { ecmaVersion: 6 }, | |
318 | valid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES], | |
319 | invalid: [] | |
320 | }, | |
321 | { | |
322 | code: "Object.defineProperties(obj, {foo: {value: function() { console.log(this); z(x => console.log(x, this)); }}})", | |
323 | parserOptions: { ecmaVersion: 6 }, | |
324 | valid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES], | |
325 | invalid: [] | |
326 | }, | |
327 | ||
328 | // Assigns to a property. | |
329 | { | |
330 | code: "obj.foo = function() { console.log(this); z(x => console.log(x, this)); };", | |
331 | parserOptions: { ecmaVersion: 6 }, | |
332 | valid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES], | |
333 | invalid: [] | |
334 | }, | |
335 | { | |
336 | code: "obj.foo = foo || function() { console.log(this); z(x => console.log(x, this)); };", | |
337 | parserOptions: { ecmaVersion: 6 }, | |
338 | valid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES], | |
339 | invalid: [] | |
340 | }, | |
341 | { | |
342 | code: "obj.foo = foo ? bar : function() { console.log(this); z(x => console.log(x, this)); };", | |
343 | parserOptions: { ecmaVersion: 6 }, | |
344 | valid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES], | |
345 | invalid: [] | |
346 | }, | |
347 | { | |
348 | code: "obj.foo = (function() { return function() { console.log(this); z(x => console.log(x, this)); }; })();", | |
349 | parserOptions: { ecmaVersion: 6 }, | |
350 | valid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES], | |
351 | invalid: [] | |
352 | }, | |
353 | { | |
354 | code: "obj.foo = (() => function() { console.log(this); z(x => console.log(x, this)); })();", | |
355 | parserOptions: { ecmaVersion: 6 }, | |
356 | valid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES], | |
357 | invalid: [] | |
358 | }, | |
359 | { | |
360 | code: "obj.foo = (function() { return () => { console.log(this); z(x => console.log(x, this)); }; })();", | |
361 | parserOptions: { ecmaVersion: 6 }, | |
362 | valid: [NORMAL], | |
363 | invalid: [USE_STRICT, IMPLIED_STRICT, MODULES], | |
364 | errors | |
365 | }, | |
366 | { | |
367 | code: "obj.foo = (() => () => { console.log(this); z(x => console.log(x, this)); })();", | |
368 | parserOptions: { ecmaVersion: 6 }, | |
369 | valid: [NORMAL], | |
370 | invalid: [USE_STRICT, IMPLIED_STRICT, MODULES], | |
371 | errors | |
372 | }, | |
6f036462 TL |
373 | { |
374 | code: "obj.foo = (function() { return function() { console.log(this); z(x => console.log(x, this)); }; })?.();", | |
375 | parserOptions: { ecmaVersion: 2020 }, | |
376 | valid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES], | |
377 | invalid: [] | |
378 | }, | |
eb39fafa DC |
379 | |
380 | // Class Instance Methods. | |
381 | { | |
382 | code: "class A {foo() { console.log(this); z(x => console.log(x, this)); }};", | |
383 | parserOptions: { ecmaVersion: 6 }, | |
384 | valid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES], | |
385 | invalid: [] | |
386 | }, | |
387 | ||
388 | // Bind/Call/Apply | |
389 | { | |
390 | code: "var foo = function() { console.log(this); z(x => console.log(x, this)); }.bind(obj);", | |
391 | parserOptions: { ecmaVersion: 6 }, | |
392 | valid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES], | |
393 | invalid: [] | |
394 | }, | |
395 | { | |
396 | code: "var foo = function() { console.log(this); z(x => console.log(x, this)); }.bind(null);", | |
397 | parserOptions: { ecmaVersion: 6 }, | |
398 | errors, | |
399 | valid: [NORMAL], | |
400 | invalid: [USE_STRICT, IMPLIED_STRICT, MODULES] | |
401 | }, | |
402 | { | |
403 | code: "(function() { console.log(this); z(x => console.log(x, this)); }).call(obj);", | |
404 | parserOptions: { ecmaVersion: 6 }, | |
405 | valid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES], | |
406 | invalid: [] | |
407 | }, | |
408 | { | |
409 | code: "(function() { console.log(this); z(x => console.log(x, this)); }).call(undefined);", | |
410 | parserOptions: { ecmaVersion: 6 }, | |
411 | errors, | |
412 | valid: [NORMAL], | |
413 | invalid: [USE_STRICT, IMPLIED_STRICT, MODULES] | |
414 | }, | |
415 | { | |
416 | code: "(function() { console.log(this); z(x => console.log(x, this)); }).apply(obj);", | |
417 | parserOptions: { ecmaVersion: 6 }, | |
418 | valid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES], | |
419 | invalid: [] | |
420 | }, | |
421 | { | |
422 | code: "(function() { console.log(this); z(x => console.log(x, this)); }).apply(void 0);", | |
423 | parserOptions: { ecmaVersion: 6 }, | |
424 | errors, | |
425 | valid: [NORMAL], | |
426 | invalid: [USE_STRICT, IMPLIED_STRICT, MODULES] | |
427 | }, | |
428 | { | |
429 | code: "Reflect.apply(function() { console.log(this); z(x => console.log(x, this)); }, obj, []);", | |
430 | parserOptions: { ecmaVersion: 6 }, | |
431 | valid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES], | |
432 | invalid: [] | |
433 | }, | |
6f036462 TL |
434 | { |
435 | code: "var foo = function() { console.log(this); z(x => console.log(x, this)); }?.bind(obj);", | |
436 | parserOptions: { ecmaVersion: 2020 }, | |
437 | valid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES], | |
438 | invalid: [] | |
439 | }, | |
440 | { | |
441 | code: "var foo = (function() { console.log(this); z(x => console.log(x, this)); }?.bind)(obj);", | |
442 | parserOptions: { ecmaVersion: 2020 }, | |
443 | valid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES], | |
444 | invalid: [] | |
445 | }, | |
446 | { | |
447 | code: "var foo = function() { console.log(this); z(x => console.log(x, this)); }.bind?.(obj);", | |
448 | parserOptions: { ecmaVersion: 2020 }, | |
449 | valid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES], | |
450 | invalid: [] | |
451 | }, | |
eb39fafa DC |
452 | |
453 | // Array methods. | |
454 | { | |
455 | code: "Array.from([], function() { console.log(this); z(x => console.log(x, this)); });", | |
456 | parserOptions: { ecmaVersion: 6 }, | |
457 | errors, | |
458 | valid: [NORMAL], | |
459 | invalid: [USE_STRICT, IMPLIED_STRICT, MODULES] | |
460 | }, | |
461 | { | |
462 | code: "foo.every(function() { console.log(this); z(x => console.log(x, this)); });", | |
463 | parserOptions: { ecmaVersion: 6 }, | |
464 | errors, | |
465 | valid: [NORMAL], | |
466 | invalid: [USE_STRICT, IMPLIED_STRICT, MODULES] | |
467 | }, | |
468 | { | |
469 | code: "foo.filter(function() { console.log(this); z(x => console.log(x, this)); });", | |
470 | parserOptions: { ecmaVersion: 6 }, | |
471 | errors, | |
472 | valid: [NORMAL], | |
473 | invalid: [USE_STRICT, IMPLIED_STRICT, MODULES] | |
474 | }, | |
475 | { | |
476 | code: "foo.find(function() { console.log(this); z(x => console.log(x, this)); });", | |
477 | parserOptions: { ecmaVersion: 6 }, | |
478 | errors, | |
479 | valid: [NORMAL], | |
480 | invalid: [USE_STRICT, IMPLIED_STRICT, MODULES] | |
481 | }, | |
482 | { | |
483 | code: "foo.findIndex(function() { console.log(this); z(x => console.log(x, this)); });", | |
484 | parserOptions: { ecmaVersion: 6 }, | |
485 | errors, | |
486 | valid: [NORMAL], | |
487 | invalid: [USE_STRICT, IMPLIED_STRICT, MODULES] | |
488 | }, | |
489 | { | |
490 | code: "foo.forEach(function() { console.log(this); z(x => console.log(x, this)); });", | |
491 | parserOptions: { ecmaVersion: 6 }, | |
492 | errors, | |
493 | valid: [NORMAL], | |
494 | invalid: [USE_STRICT, IMPLIED_STRICT, MODULES] | |
495 | }, | |
496 | { | |
497 | code: "foo.map(function() { console.log(this); z(x => console.log(x, this)); });", | |
498 | parserOptions: { ecmaVersion: 6 }, | |
499 | errors, | |
500 | valid: [NORMAL], | |
501 | invalid: [USE_STRICT, IMPLIED_STRICT, MODULES] | |
502 | }, | |
503 | { | |
504 | code: "foo.some(function() { console.log(this); z(x => console.log(x, this)); });", | |
505 | parserOptions: { ecmaVersion: 6 }, | |
506 | errors, | |
507 | valid: [NORMAL], | |
508 | invalid: [USE_STRICT, IMPLIED_STRICT, MODULES] | |
509 | }, | |
510 | { | |
511 | code: "Array.from([], function() { console.log(this); z(x => console.log(x, this)); }, obj);", | |
512 | parserOptions: { ecmaVersion: 6 }, | |
513 | valid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES], | |
514 | invalid: [] | |
515 | }, | |
516 | { | |
517 | code: "foo.every(function() { console.log(this); z(x => console.log(x, this)); }, obj);", | |
518 | parserOptions: { ecmaVersion: 6 }, | |
519 | valid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES], | |
520 | invalid: [] | |
521 | }, | |
522 | { | |
523 | code: "foo.filter(function() { console.log(this); z(x => console.log(x, this)); }, obj);", | |
524 | parserOptions: { ecmaVersion: 6 }, | |
525 | valid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES], | |
526 | invalid: [] | |
527 | }, | |
528 | { | |
529 | code: "foo.find(function() { console.log(this); z(x => console.log(x, this)); }, obj);", | |
530 | parserOptions: { ecmaVersion: 6 }, | |
531 | valid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES], | |
532 | invalid: [] | |
533 | }, | |
534 | { | |
535 | code: "foo.findIndex(function() { console.log(this); z(x => console.log(x, this)); }, obj);", | |
536 | parserOptions: { ecmaVersion: 6 }, | |
537 | valid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES], | |
538 | invalid: [] | |
539 | }, | |
540 | { | |
541 | code: "foo.forEach(function() { console.log(this); z(x => console.log(x, this)); }, obj);", | |
542 | parserOptions: { ecmaVersion: 6 }, | |
543 | valid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES], | |
544 | invalid: [] | |
545 | }, | |
546 | { | |
547 | code: "foo.map(function() { console.log(this); z(x => console.log(x, this)); }, obj);", | |
548 | parserOptions: { ecmaVersion: 6 }, | |
549 | valid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES], | |
550 | invalid: [] | |
551 | }, | |
552 | { | |
553 | code: "foo.some(function() { console.log(this); z(x => console.log(x, this)); }, obj);", | |
554 | parserOptions: { ecmaVersion: 6 }, | |
555 | valid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES], | |
556 | invalid: [] | |
557 | }, | |
558 | { | |
559 | code: "foo.forEach(function() { console.log(this); z(x => console.log(x, this)); }, null);", | |
560 | parserOptions: { ecmaVersion: 6 }, | |
561 | errors, | |
562 | valid: [NORMAL], | |
563 | invalid: [USE_STRICT, IMPLIED_STRICT, MODULES] | |
564 | }, | |
6f036462 TL |
565 | { |
566 | code: "Array?.from([], function() { console.log(this); z(x => console.log(x, this)); }, obj);", | |
567 | parserOptions: { ecmaVersion: 2020 }, | |
568 | valid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES], | |
569 | invalid: [] | |
570 | }, | |
571 | { | |
572 | code: "foo?.every(function() { console.log(this); z(x => console.log(x, this)); }, obj);", | |
573 | parserOptions: { ecmaVersion: 2020 }, | |
574 | valid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES], | |
575 | invalid: [] | |
576 | }, | |
577 | { | |
578 | code: "(Array?.from)([], function() { console.log(this); z(x => console.log(x, this)); }, obj);", | |
579 | parserOptions: { ecmaVersion: 2020 }, | |
580 | valid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES], | |
581 | invalid: [] | |
582 | }, | |
583 | { | |
584 | code: "(foo?.every)(function() { console.log(this); z(x => console.log(x, this)); }, obj);", | |
585 | parserOptions: { ecmaVersion: 2020 }, | |
586 | valid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES], | |
587 | invalid: [] | |
588 | }, | |
eb39fafa DC |
589 | |
590 | // @this tag. | |
591 | { | |
592 | code: "/** @this Obj */ function foo() { console.log(this); z(x => console.log(x, this)); }", | |
593 | parserOptions: { ecmaVersion: 6 }, | |
594 | valid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES], | |
595 | invalid: [] | |
596 | }, | |
597 | { | |
598 | code: "/**\n * @returns {void}\n * @this Obj\n */\nfunction foo() { console.log(this); z(x => console.log(x, this)); }", | |
599 | parserOptions: { ecmaVersion: 6 }, | |
600 | valid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES], | |
601 | invalid: [] | |
602 | }, | |
603 | { | |
604 | code: "/** @returns {void} */ function foo() { console.log(this); z(x => console.log(x, this)); }", | |
605 | parserOptions: { ecmaVersion: 6 }, | |
606 | errors, | |
607 | valid: [NORMAL], | |
608 | invalid: [USE_STRICT, IMPLIED_STRICT, MODULES] | |
609 | }, | |
610 | { | |
611 | code: "/** @this Obj */ foo(function() { console.log(this); z(x => console.log(x, this)); });", | |
612 | parserOptions: { ecmaVersion: 6 }, | |
613 | errors, | |
614 | valid: [NORMAL], | |
615 | invalid: [USE_STRICT, IMPLIED_STRICT, MODULES] | |
616 | }, | |
617 | { | |
618 | code: "foo(/* @this Obj */ function() { console.log(this); z(x => console.log(x, this)); });", | |
619 | parserOptions: { ecmaVersion: 6 }, | |
620 | errors, | |
621 | valid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES], | |
622 | invalid: [] | |
623 | }, | |
624 | ||
625 | // https://github.com/eslint/eslint/issues/3254 | |
626 | { | |
627 | code: "function foo() { console.log(this); z(x => console.log(x, this)); }", | |
628 | parserOptions: { ecmaVersion: 6 }, | |
629 | errors, | |
630 | valid: [NORMAL], | |
631 | invalid: [USE_STRICT, IMPLIED_STRICT, MODULES] | |
632 | }, | |
633 | ||
634 | // https://github.com/eslint/eslint/issues/3287 | |
635 | { | |
636 | code: "function foo() { /** @this Obj*/ return function bar() { console.log(this); z(x => console.log(x, this)); }; }", | |
637 | parserOptions: { ecmaVersion: 6 }, | |
638 | valid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES], | |
639 | invalid: [] | |
640 | }, | |
641 | ||
642 | // https://github.com/eslint/eslint/issues/6824 | |
643 | { | |
644 | code: "var Ctor = function() { console.log(this); z(x => console.log(x, this)); }", | |
645 | parserOptions: { ecmaVersion: 6 }, | |
646 | valid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES], | |
647 | invalid: [] | |
648 | }, | |
649 | { | |
650 | code: "var Ctor = function() { console.log(this); z(x => console.log(x, this)); }", | |
651 | parserOptions: { ecmaVersion: 6 }, | |
652 | options: [{ capIsConstructor: false }], | |
653 | errors, | |
654 | valid: [NORMAL], | |
655 | invalid: [USE_STRICT, IMPLIED_STRICT, MODULES] | |
656 | }, | |
657 | { | |
658 | code: "var func = function() { console.log(this); z(x => console.log(x, this)); }", | |
659 | parserOptions: { ecmaVersion: 6 }, | |
660 | errors, | |
661 | valid: [NORMAL], | |
662 | invalid: [USE_STRICT, IMPLIED_STRICT, MODULES] | |
663 | }, | |
664 | { | |
665 | code: "var func = function() { console.log(this); z(x => console.log(x, this)); }", | |
666 | parserOptions: { ecmaVersion: 6 }, | |
667 | options: [{ capIsConstructor: false }], | |
668 | errors, | |
669 | valid: [NORMAL], | |
670 | invalid: [USE_STRICT, IMPLIED_STRICT, MODULES] | |
671 | }, | |
672 | { | |
673 | code: "Ctor = function() { console.log(this); z(x => console.log(x, this)); }", | |
674 | parserOptions: { ecmaVersion: 6 }, | |
675 | valid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES], | |
676 | invalid: [] | |
677 | }, | |
678 | { | |
679 | code: "Ctor = function() { console.log(this); z(x => console.log(x, this)); }", | |
680 | parserOptions: { ecmaVersion: 6 }, | |
681 | options: [{ capIsConstructor: false }], | |
682 | errors, | |
683 | valid: [NORMAL], | |
684 | invalid: [USE_STRICT, IMPLIED_STRICT, MODULES] | |
685 | }, | |
686 | { | |
687 | code: "func = function() { console.log(this); z(x => console.log(x, this)); }", | |
688 | parserOptions: { ecmaVersion: 6 }, | |
689 | errors, | |
690 | valid: [NORMAL], | |
691 | invalid: [USE_STRICT, IMPLIED_STRICT, MODULES] | |
692 | }, | |
693 | { | |
694 | code: "func = function() { console.log(this); z(x => console.log(x, this)); }", | |
695 | parserOptions: { ecmaVersion: 6 }, | |
696 | options: [{ capIsConstructor: false }], | |
697 | errors, | |
698 | valid: [NORMAL], | |
699 | invalid: [USE_STRICT, IMPLIED_STRICT, MODULES] | |
700 | }, | |
701 | { | |
702 | code: "function foo(Ctor = function() { console.log(this); z(x => console.log(x, this)); }) {}", | |
703 | parserOptions: { ecmaVersion: 6 }, | |
704 | valid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES], | |
705 | invalid: [] | |
706 | }, | |
707 | { | |
708 | code: "function foo(func = function() { console.log(this); z(x => console.log(x, this)); }) {}", | |
709 | parserOptions: { ecmaVersion: 6 }, | |
710 | errors, | |
711 | valid: [NORMAL], | |
712 | invalid: [USE_STRICT, IMPLIED_STRICT, MODULES] | |
713 | }, | |
714 | { | |
715 | code: "[obj.method = function() { console.log(this); z(x => console.log(x, this)); }] = a", | |
716 | parserOptions: { ecmaVersion: 6 }, | |
717 | valid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES], | |
718 | invalid: [] | |
719 | }, | |
720 | { | |
721 | code: "[func = function() { console.log(this); z(x => console.log(x, this)); }] = a", | |
722 | parserOptions: { ecmaVersion: 6 }, | |
723 | errors, | |
724 | valid: [NORMAL], | |
725 | invalid: [USE_STRICT, IMPLIED_STRICT, MODULES] | |
6f036462 TL |
726 | }, |
727 | { | |
728 | code: "obj.method &&= function () { console.log(this); z(x => console.log(x, this)); }", | |
729 | parserOptions: { ecmaVersion: 2021 }, | |
730 | valid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES], | |
731 | invalid: [] | |
732 | }, | |
733 | { | |
734 | code: "obj.method ||= function () { console.log(this); z(x => console.log(x, this)); }", | |
735 | parserOptions: { ecmaVersion: 2021 }, | |
736 | valid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES], | |
737 | invalid: [] | |
738 | }, | |
739 | { | |
740 | code: "obj.method ??= function () { console.log(this); z(x => console.log(x, this)); }", | |
741 | parserOptions: { ecmaVersion: 2021 }, | |
742 | valid: [NORMAL, USE_STRICT, IMPLIED_STRICT, MODULES], | |
743 | invalid: [] | |
eb39fafa DC |
744 | } |
745 | ]; | |
746 | ||
747 | const ruleTester = new RuleTester(); | |
748 | ||
749 | ruleTester.run("no-invalid-this", rule, { | |
750 | valid: extractPatterns(patterns, "valid"), | |
751 | invalid: extractPatterns(patterns, "invalid") | |
752 | }); |