source: trip-planner-front/node_modules/terser/CHANGELOG.md@ 6c1585f

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1# Changelog
2
3## v5.7.1
4
5 - Avoided collapsing assignments together if it would place a chain assignment on the left hand side, which is invalid syntax (`a?.b = c`)
6 - Removed undefined from object expansions (`{ ...void 0 }` -> `{}`)
7 - Fix crash when checking if something is nullish or undefined (#1009)
8 - Fixed comparison of private class properties (#1015)
9 - Minor performance improvements (#993)
10 - Fixed scope of function defs in strict mode (they are block scoped)
11
12## v5.7.0
13
14 - Several compile-time evaluation and inlining fixes
15 - Allow `reduce_funcs` to be disabled again.
16 - Add `spidermonkey` options to parse and format (#974)
17 - Accept `{get = "default val"}` and `{set = "default val"}` in destructuring arguments.
18 - Change package.json export map to help require.resolve (#971)
19 - Improve docs
20 - Fix `export default` of an anonymous class with `extends`
21
22## v5.6.1
23
24 - Mark assignments to the `.prototype` of a class as pure
25 - Parenthesize `await` on the left of `**` (while accepting legacy non-parenthesised input)
26 - Avoided outputting NUL bytes in optimized RegExps, to stop the output from breaking other tools
27 - Added `exports` to domprops (#939)
28 - Fixed a crash when spreading `...this`
29 - Fixed the computed size of arrow functions, which improves their inlining
30
31## v5.6.0
32
33 - Added top-level await
34 - Beautify option has been removed in #895
35 - Private properties, getters and setters have been added in #913 and some more commits
36 - Docs improvements: #896, #903, #916
37
38## v5.5.1
39
40 - Fixed object properties with unicode surrogates on safari.
41
42## v5.5.0
43
44 - Fixed crash when inlining uninitialized variable into template string.
45 - The sourcemap for dist was removed for being too large.
46
47## v5.4.0
48
49 - Logical assignment
50 - Change `let x = undefined` to just `let x`
51 - Removed some optimizations for template strings, placing them behind `unsafe` options. Reason: adding strings is not equivalent to template strings, due to valueOf differences.
52 - The AST_Token class was slimmed down in order to use less memory.
53
54## v5.3.8
55
56 - Restore node 13 support
57
58## v5.3.7
59
60Hotfix release, fixes package.json "engines" syntax
61
62## v5.3.6
63
64 - Fixed parentheses when outputting `??` mixed with `||` and `&&`
65 - Improved hygiene of the symbol generator
66
67## v5.3.5
68
69 - Avoid moving named functions into default exports.
70 - Enabled transform() for chain expressions. This allows AST transformers to reach inside chain expressions.
71
72## v5.3.4
73
74 - Fixed a crash when hoisting (with `hoist_vars`) a destructuring variable declaration
75
76## v5.3.3
77
78 - `source-map` library has been updated, bringing memory usage and CPU time improvements when reading input source maps (the SourceMapConsumer is now WASM based).
79 - The `wrap_func_args` option now also wraps arrow functions, as opposed to only function expressions.
80
81## v5.3.2
82
83 - Prevented spread operations from being expanded when the expanded array/object contains getters, setters, or array holes.
84 - Fixed _very_ slow self-recursion in some cases of removing extraneous parentheses from `+` operations.
85
86## v5.3.1
87
88 - An issue with destructuring declarations when `pure_getters` is enabled has been fixed
89 - Fixed a crash when chain expressions need to be shallowly compared
90 - Made inlining functions more conservative to make sure a function that contains a reference to itself isn't moved into a place that can create multiple instances of itself.
91
92## v5.3.0
93
94 - Fixed a crash when compressing object spreads in some cases
95 - Fixed compiletime evaluation of optional chains (caused typeof a?.b to always return "object")
96 - domprops has been updated to contain every single possible prop
97
98## v5.2.1
99
100 - The parse step now doesn't accept an `ecma` option, so that all ES code is accepted.
101 - Optional dotted chains now accept keywords, just like dotted expressions (`foo?.default`)
102
103## v5.2.0
104
105 - Optional chaining syntax is now supported.
106 - Consecutive await expressions don't have unnecessary parens
107 - Taking the variable name's length (after mangling) into consideration when deciding to inline
108
109## v5.1.0
110
111 - `import.meta` is now supported
112 - Typescript typings have been improved
113
114## v5.0.0
115
116 - `in` operator now taken into account during property mangle.
117 - Fixed infinite loop in face of a reference loop in some situations.
118 - Kept exports and imports around even if there's something which will throw before them.
119 - The main exported bundle for commonjs, dist/bundle.min.js is no longer minified.
120
121## v5.0.0-beta.0
122
123 - BREAKING: `minify()` is now async and rejects a promise instead of returning an error.
124 - BREAKING: Internal AST is no longer exposed, so that it can be improved without releasing breaking changes.
125 - BREAKING: Lowest supported node version is 10
126 - BREAKING: There are no more warnings being emitted
127 - Module is now distributed as a dual package - You can `import` and `require()` too.
128 - Inline improvements were made
129
130## v4.8.0
131
132 - Support for numeric separators (`million = 1_000_000`) was added.
133 - Assigning properties to a class is now assumed to be pure.
134 - Fixed bug where `yield` wasn't considered a valid property key in generators.
135
136## v4.7.0
137
138 - A bug was fixed where an arrow function would have the wrong size
139 - `arguments` object is now considered safe to retrieve properties from (useful for `length`, or `0`) even when `pure_getters` is not set.
140 - Fixed erroneous `const` declarations without value (which is invalid) in some corner cases when using `collapse_vars`.
141
142## v4.6.13
143
144 - Fixed issue where ES5 object properties were being turned into ES6 object properties due to more lax unicode rules.
145 - Fixed parsing of BigInt with lowercase `e` in them.
146
147## v4.6.12
148
149 - Fixed subtree comparison code, making it see that `[1,[2, 3]]` is different from `[1, 2, [3]]`
150 - Printing of unicode identifiers has been improved
151
152## v4.6.11
153
154 - Read unused classes' properties and method keys, to figure out if they use other variables.
155 - Prevent inlining into block scopes when there are name collisions
156 - Functions are no longer inlined into parameter defaults, because they live in their own special scope.
157 - When inlining identity functions, take into account the fact they may be used to drop `this` in function calls.
158 - Nullish coalescing operator (`x ?? y`), plus basic optimization for it.
159 - Template literals in binary expressions such as `+` have been further optimized
160
161## v4.6.10
162
163 - Do not use reduce_vars when classes are present
164
165## v4.6.9
166
167 - Check if block scopes actually exist in blocks
168
169## v4.6.8
170
171 - Take into account "executed bits" of classes like static properties or computed keys, when checking if a class evaluation might throw or have side effects.
172
173## v4.6.7
174
175 - Some new performance gains through a `AST_Node.size()` method which measures a node's source code length without printing it to a string first.
176 - An issue with setting `--comments` to `false` in the CLI has been fixed.
177 - Fixed some issues with inlining
178 - `unsafe_symbols` compress option was added, which turns `Symbol("name")` into just `Symbol()`
179 - Brought back compress performance improvement through the `AST_Node.equivalent_to(other)` method (which was reverted in v4.6.6).
180
181## v4.6.6
182
183(hotfix release)
184
185 - Reverted code to 4.6.4 to allow for more time to investigate an issue.
186
187## v4.6.5 (REVERTED)
188
189 - Improved compress performance through using a new method to see if two nodes are equivalent, instead of printing them to a string.
190
191## v4.6.4
192
193 - The `"some"` value in the `comments` output option now preserves `@lic` and other important comments when using `//`
194 - `</script>` is now better escaped in regex, and in comments, when using the `inline_script` output option
195 - Fixed an issue when transforming `new RegExp` into `/.../` when slashes are included in the source
196 - `AST_Node.prototype.constructor` now exists, allowing for easier debugging of crashes
197 - Multiple if statements with the same consequents are now collapsed
198 - Typescript typings improvements
199 - Optimizations while looking for surrogate pairs in strings
200
201## v4.6.3
202
203 - Annotations such as `/*#__NOINLINE__*/` and `/*#__PURE__*/` may now be preserved using the `preserve_annotations` output option
204 - A TypeScript definition update for the `keep_quoted` output option.
205
206## v4.6.2
207
208 - A bug where functions were inlined into other functions with scope conflicts has been fixed.
209 - `/*#__NOINLINE__*/` annotation fixed for more use cases where inlining happens.
210
211## v4.6.1
212
213 - Fixed an issue where a class is duplicated by reduce_vars when there's a recursive reference to the class.
214
215## v4.6.0
216
217 - Fixed issues with recursive class references.
218 - BigInt evaluation has been prevented, stopping Terser from evaluating BigInts like it would do regular numbers.
219 - Class property support has been added
220
221## v4.5.1
222
223(hotfix release)
224
225 - Fixed issue where `() => ({})[something]` was not parenthesised correctly.
226
227## v4.5.0
228
229 - Inlining has been improved
230 - An issue where keep_fnames combined with functions declared through variables was causing name shadowing has been fixed
231 - You can now set the ES version through their year
232 - The output option `keep_numbers` has been added, which prevents Terser from turning `1000` into `1e3` and such
233 - Internal small optimisations and refactors
234
235## v4.4.3
236
237 - Number and BigInt parsing has been fixed
238 - `/*#__INLINE__*/` annotation fixed for arrow functions with non-block bodies.
239 - Functional tests have been added, using [this repository](https://github.com/terser/terser-functional-tests).
240 - A memory leak, where the entire AST lives on after compression, has been plugged.
241
242## v4.4.2
243
244 - Fixed a problem with inlining identity functions
245
246## v4.4.1
247
248*note:* This introduced a feature, therefore it should have been a minor release.
249
250 - Fixed a crash when `unsafe` was enabled.
251 - An issue has been fixed where `let` statements might be collapsed out of their scope.
252 - Some error messages have been improved by adding quotes around variable names.
253
254## v4.4.0
255
256 - Added `/*#__INLINE__*/` and `/*#__NOINLINE__*/` annotations for calls. If a call has one of these, it either forces or forbids inlining.
257
258## v4.3.11
259
260 - Fixed a problem where `window` was considered safe to access, even though there are situations where it isn't (Node.js, workers...)
261 - Fixed an error where `++` and `--` were considered side-effect free
262 - `Number(x)` now needs both `unsafe` and and `unsafe_math` to be compressed into `+x` because `x` might be a `BigInt`
263 - `keep_fnames` now correctly supports regexes when the function is in a variable declaration
264
265## v4.3.10
266
267 - Fixed syntax error when repeated semicolons were encountered in classes
268 - Fixed invalid output caused by the creation of empty sequences internally
269 - Scopes are now updated when scopes are inlined into them
270
271## v4.3.9
272 - Fixed issue with mangle's `keep_fnames` option, introduced when adding code to keep variable names of anonymous functions
273
274## v4.3.8
275
276 - Typescript typings fix
277
278## v4.3.7
279
280 - Parsing of regex options in the CLI (which broke in v4.3.5) was fixed.
281 - typescript definition updates
282
283## v4.3.6
284
285(crash hotfix)
286
287## v4.3.5
288
289 - Fixed an issue with DOS line endings strings separated by `\` and a new line.
290 - Improved fix for the output size regression related to unused references within the extends section of a class.
291 - Variable names of anonymous functions (eg: `const x = () => { ... }` or `var func = function () {...}`) are now preserved when keep_fnames is true.
292 - Fixed performance degradation introduced for large payloads in v4.2.0
293
294## v4.3.4
295
296 - Fixed a regression where the output size was increased when unused classes were referred to in the extends clause of a class.
297 - Small typescript typings fixes.
298 - Comments with `@preserve`, `@license`, `@cc_on` as well as comments starting with `/*!` and `/**!` are now preserved by default.
299
300## v4.3.3
301
302 - Fixed a problem where parsing template strings would mix up octal notation and a slash followed by a zero representing a null character.
303 - Started accepting the name `async` in destructuring arguments with default value.
304 - Now Terser takes into account side effects inside class `extends` clauses.
305 - Added parens whenever there's a comment between a return statement and the returned value, to prevent issues with ASI.
306 - Stopped using raw RegExp objects, since the spec is going to continue to evolve. This ensures Terser is able to process new, unknown RegExp flags and features. This is a breaking change in the AST node AST_RegExp.
307
308## v4.3.2
309
310 - Typescript typing fix
311 - Ensure that functions can't be inlined, by reduce_vars, into places where they're accessing variables with the same name, but from somewhere else.
312
313## v4.3.1
314
315 - Fixed an issue from 4.3.0 where any block scope within a for loop erroneously had its parent set to the function scopee
316 - Fixed an issue where compressing IIFEs with argument expansions would result in some parameters becoming undefined
317 - addEventListener options argument's properties are now part of the DOM properties list.
318
319## v4.3.0
320
321 - Do not drop computed object keys with side effects
322 - Functions passed to other functions in calls are now wrapped in parentheses by default, which speeds up loading most modules
323 - Objects with computed properties are now less likely to be hoisted
324 - Speed and memory efficiency optimizations
325 - Fixed scoping issues with `try` and `switch`
326
327## v4.2.1
328
329 - Minor refactors
330 - Fixed a bug similar to #369 in collapse_vars
331 - Functions can no longer be inlined into a place where they're going to be compared with themselves.
332 - reduce_funcs option is now legacy, as using reduce_vars without reduce_funcs caused some weird corner cases. As a result, it is now implied in reduce_vars and can't be turned off without turning off reduce_vars.
333 - Bug which would cause a random stack overflow has now been fixed.
334
335## v4.2.0
336
337 - When the source map URL is `inline`, don't write it to a file.
338 - Fixed output parens when a lambda literal is the tag on a tagged template string.
339 - The `mangle.properties.undeclared` option was added. This enables the property mangler to mangle properties of variables which can be found in the name cache, but whose properties are not known to this Terser run.
340 - The v8 bug where the toString and source representations of regexes like `RegExp("\\\n")` includes an actual newline is now fixed.
341 - Now we're guaranteed to not have duplicate comments in the output
342 - Domprops updates
343
344## v4.1.4
345
346 - Fixed a crash when inlining a function into somewhere else when it has interdependent, non-removable variables.
347
348## v4.1.3
349
350 - Several issues with the `reduce_vars` option were fixed.
351 - Starting this version, we only have a dist/bundle.min.js
352
353## v4.1.2
354
355 - The hotfix was hotfixed
356
357## v4.1.1
358
359 - Fixed a bug where toplevel scopes were being mixed up with lambda scopes
360
361## v4.1.0
362
363 - Internal functions were replaced by `Object.assign`, `Array.prototype.some`, `Array.prototype.find` and `Array.prototype.every`.
364 - A serious issue where some ESM-native code was broken was fixed.
365 - Performance improvements were made.
366 - Support for BigInt was added.
367 - Inline efficiency was improved. Functions are now being inlined more proactively instead of being inlined only after another Compressor pass.
368
369## v4.0.2
370
371(Hotfix release. Reverts unmapped segments PR [#342](https://github.com/terser/terser/pull/342), which will be put back on Terser when the upstream issue is resolved)
372
373## v4.0.1
374
375 - Collisions between the arguments of inlined functions and names in the outer scope are now being avoided while inlining
376 - Unmapped segments are now preserved when compressing a file which has source maps
377 - Default values of functions are now correctly converted from Mozilla AST to Terser AST
378 - JSON ⊂ ECMAScript spec (if you don't know what this is you don't need to)
379 - Export AST_* classes to library users
380 - Fixed issue with `collapse_vars` when functions are created with the same name as a variable which already exists
381 - Added `MutationObserverInit` (Object with options for initialising a mutation observer) properties to the DOM property list
382 - Custom `Error` subclasses are now internally used instead of old-school Error inheritance hacks.
383 - Documentation fixes
384 - Performance optimizations
385
386## v4.0.0
387
388 - **breaking change**: The `variables` property of all scopes has become a standard JavaScript `Map` as opposed to the old bespoke `Dictionary` object.
389 - Typescript definitions were fixed
390 - `terser --help` was fixed
391 - The public interface was cleaned up
392 - Fixed optimisation of `Array` and `new Array`
393 - Added the `keep_quoted=strict` mode to mangle_props, which behaves more like Google Closure Compiler by mangling all unquoted property names, instead of reserving quoted property names automatically.
394 - Fixed parent functions' parameters being shadowed in some cases
395 - Allowed Terser to run in a situation where there are custom functions attached to Object.prototype
396 - And more bug fixes, optimisations and internal changes
397
398## v3.17.0
399
400 - More DOM properties added to --mangle-properties's DOM property list
401 - Closed issue where if 2 functions had the same argument name, Terser would not inline them together properly
402 - Fixed issue with `hasOwnProperty.call`
403 - You can now list files to minify in a Terser config file
404 - Started replacing `new Array(<number>)` with an array literal
405 - Started using ES6 capabilities like `Set` and the `includes` method for strings and arrays
406
407## v3.16.1
408
409 - Fixed issue where Terser being imported with `import` would cause it not to work due to the `__esModule` property. (PR #254 was submitted, which was nice, but since it wasn't a pure commonJS approach I decided to go with my own solution)
410
411## v3.16.0
412
413 - No longer leaves names like Array or Object or window as a SimpleStatement (statement which is just a single expression).
414 - Add support for sections sourcemaps (IndexedSourceMapConsumer)
415 - Drops node.js v4 and starts using commonJS
416 - Is now built with rollup
417
418## v3.15.0
419
420 - Inlined spread syntax (`[...[1, 2, 3], 4, 5] => [1, 2, 3, 4, 5]`) in arrays and objects.
421 - Fixed typo in compressor warning
422 - Fixed inline source map input bug
423 - Fixed parsing of template literals with unnecessary escapes (Like `\\a`)
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