JoBoEVD/UglifyJS
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902 Commits

Author SHA1 Message Date
Alex Lam S.L
9b0f86f5a1 fix reduce_vars on AST_Array.length (#2404) 2017-10-27 02:33:37 +08:00
Alex Lam S.L
ee082ace1b compress self comparisons (#2398) 2017-10-26 01:16:12 +08:00
Alex Lam S.L
4178289c38 implement hoist_props (#2396) 
fixes #2377
 2017-10-25 03:38:11 +08:00
Alex Lam S.L
74ae16f9f8 fix unsafe reduce_vars on arrays & objects (#2397) 2017-10-24 22:10:36 +08:00
Alex Lam S.L
86ea38a259 enhance unsafe evaluate of arrays & objects (#2394) 2017-10-24 02:58:30 +08:00
Alex Lam S.L
8a713e449f deduplicate declarations regardless of toplevel (#2393) 2017-10-23 01:00:50 +08:00
Alex Lam S.L
24aa07855b safer properties transform (#2391) 
`{ a: x, b: y }.a` => `[ x, y ][0]`
- `x` cannot be function containing `this`

`[ x, y, z ][1]` => `(x, z, y)`
- only if `z` is side-effect-free
 2017-10-22 20:10:13 +08:00
Alex Lam S.L
5fd723f143 fix unsafe expansion of object literals (#2390) 2017-10-22 15:00:36 +08:00
Alex Lam S.L
516eaef50c fix unsafe evaluation of AST_Sub (#2389) 2017-10-22 13:14:15 +08:00
Alex Lam S.L
4ae1fb3ed8 fix unsafe evaluation of objects (#2388) 2017-10-22 04:19:40 +08:00
Alex Lam S.L
011123223b fix unsafe escape analysis in reduce_vars (#2387) 2017-10-22 03:23:31 +08:00
Alex Lam S.L
c927cea632 unsafe fix-ups for #2351 (#2379) 2017-10-21 04:08:26 +08:00
Alex Lam S.L
0f2ef3367c enhance collapse_vars around lazy operations (#2369) 2017-10-19 04:52:00 +08:00
Alex Lam S.L
7e5b5cac97 fix AST_PropAccess in collapse_vars (take 3) (#2375) 
Suppress scanning beyond assignment to `a.b`
 2017-10-18 02:54:51 +08:00
Alex Lam S.L
c1346e06b7 clean up lazy operator detection (#2373) 2017-10-17 23:25:45 +08:00
Alex Lam S.L
0d2fe8e3ef fix AST_PropAccess in collapse_vars (take 2) (#2372) 
fixes #2364
 2017-10-17 22:59:15 +08:00
Alex Lam S.L
f2b9c11e2a fix AST_PropAccess in collapse_vars (#2370) 
fixes #2364
 2017-10-17 18:33:03 +08:00
Alex Lam S.L
fe647b083e account for side-effects from AST_This in collapse_vars (#2365) 2017-10-17 01:18:55 +08:00
Alex Lam S.L
b810e2f8da perform reduce_vars on safe literals (#2351) 
- constant expression
- single reference
- same scope
- not across loop body
 2017-10-09 12:25:06 +08:00
Alex Lam S.L
1abe14296e collapse a.b whenever safe (#2350) 2017-10-08 13:17:48 +08:00
Alex Lam S.L
dd71639264 enhance reduce_vars for AST_Accessor (#2339) 
fixes #2336
 2017-10-01 03:01:50 +08:00
Alex Lam S.L
2dcc552ce0 trap invalid use of reserved words (#2338) 
fixes #2337
 2017-10-01 02:10:41 +08:00
kzc
7e3e9da860 fix "use asm" numeric output (#2328) 
fixes #2324
 2017-09-21 04:42:40 +08:00
Alex Lam S.L
00f509405b suppress collapse_vars of this into "use strict" (#2326) 
fixes #2319
 2017-09-20 05:23:20 +08:00
Alex Lam S.L
4f0953f7e9 handle LHS side-effects on cascade & collapse_vars (#2314) 
fixes #2313
 2017-09-16 11:45:19 +08:00
Alex Lam S.L
182a47bfb1 improve source mapping (#2312) 
fixes #2310
 2017-09-15 12:46:48 +08:00
Mateusz Burzyński
8158b1bdcf Testing all leading comments against being PURE comments (#2305) 2017-09-10 02:08:15 +08:00
Alex Lam S.L
aacf3edc68 extend unsafe on pure global functions (#2303) 2017-09-07 22:08:34 +08:00
kzc
8b89072190 add Date and other known globals to unsafe compress option (#2302) 2017-09-07 02:44:26 +08:00
Alex Lam S.L
395a17ccda fix collapse_vars on default function argument (#2299) 
Avoid collision with local variable `undefined` under certain corner cases.

fixes #2298
 2017-09-04 02:32:33 +08:00
Alex Lam S.L
3f355866cf correctly count declarations after hoist_vars (#2297) 
fixes #2295
 2017-09-03 17:23:31 +08:00
Alex Lam S.L
e5cf7972ea fix unused patching of AST_For.init blocks (#2289) 
fixes #2288
 2017-08-29 01:10:04 +08:00
Erik Desjardins
16d40915b4 don't escape null characters as \0 when followed by any digit (#2273) 
fixes #2272
 2017-08-14 12:30:08 +08:00
Alex Lam S.L
e7c21e87e3 fix ie8 mangling of top-level AST_SymbolCatch (#2263) 
fixes #2254
 2017-08-01 02:38:32 +08:00
Alex Lam S.L
a845897758 improve mangle.properties (#2261) 
- include dead code when `keep_quoted`
- unify `keep_quoted` & `reserved`
- make `test/run-tests.js` consistent with `minify()`

fixes #2256
 2017-07-29 23:02:04 +08:00
Alex Lam S.L
6a5e74b44e unescape surrogate pairs only (#2246) 
fixes #2242
 2017-07-23 12:38:21 +08:00
Alex Lam S.L
b35dfc2599 reject malformed CLI parameters (#2239) 
fixes #2237
 2017-07-15 23:50:27 +08:00
Alex Lam S.L
9e1da9235e ensure ie8 works with mangled properties (#2238) 
fixes #2234
 2017-07-15 22:50:59 +08:00
Alex Lam S.L
a5ffe2c23f drop unused builtin globals under unsafe (#2236) 
fixes #2233
 2017-07-15 15:16:11 +08:00
Alex Lam S.L
9282e7b0c6 fix unsafe evaluate of Object static methods (#2232) 
fixes #2231
 2017-07-14 19:52:01 +08:00
Alex Lam S.L
5229cb2b1b drop unused compound assignments (#2230) 
fixes #2226
 2017-07-14 00:39:34 +08:00
Alex Lam S.L
458e3e15f0 enhance passes (#2229) 
- remove hardcoded upper limit
- continue based on node count reduction
- emit verbose statistics

fixes #2226
 2017-07-13 02:18:59 +08:00
Alex Lam S.L
10a938cb79 enhance source mapping on IIFEs (#2224) 
fixes #2213
 2017-07-11 02:34:28 +08:00
Alex Lam S.L
71ee91e716 handle duplicate argument names in collapse_vars (#2215) 2017-07-08 04:42:35 +08:00
Alex Lam S.L
4f70d2e28c inlining of static methods & constants (#2211) 
- guard by `unsafe`
- support `Array`, `Math`, `Number`, `Object` & `String`

fixes #2207
 2017-07-07 05:35:32 +08:00
Alex Lam S.L
4b6ca5e742 inline property access of object literal (#2209) 
- only if property value is side-effect-free
- guard by `unsafe`

fixes #2208
 2017-07-06 21:51:58 +08:00
Alex Lam S.L
9306da3c58 suppress collapse_vars of this as call argument (#2204) 
fixes #2203
 2017-07-06 01:03:52 +08:00
Alex Lam S.L
1ac25fc032 improve compress granularity through typeofs (#2201) 
fixes #2198
 2017-07-05 19:20:33 +08:00
Alex Lam S.L
5f046c724b minor clean-ups to evaluate (#2197) 2017-07-03 18:52:39 +08:00
Alex Lam S.L
af0262b7e5 improve parenthesis emission (#2196) 
- eliminate `throw` usages
- suppress extraneous parenthesis
  - `new function() {foo.bar()}.baz`
  - `for (function() { "foo" in bar; };;);`
 2017-07-03 04:17:37 +08:00
Alex Lam S.L
6b3aeff1d8 clean up TreeWalker.pop() (#2195) 
Remove superfluous parameter.
 2017-07-03 03:23:38 +08:00
Alex Lam S.L
20e4f8277f refactor throw usage within compress (#2193) 
Eliminate exceptional constructs from normal control flow.
 2017-07-03 02:10:56 +08:00
Alex Lam S.L
8b69a3d18e drop argument value after collapse_vars (#2190) 2017-07-02 04:28:11 +08:00
Alex Lam S.L
d40950b741 improve inline efficiency (#2188) 
... by teaching `collapse_vars` some new tricks.

fixes #2187
 2017-07-02 01:05:14 +08:00
Alex Lam S.L
bdeadffbf5 improve usability of name cache under minify() (#2176) 
fixes #2174
 2017-06-29 12:48:34 +08:00
Alex Lam S.L
f0a99125ee improve unsafe_Func (#2171) 
- minimise disturbance to `compute_char_frequency()`
- remove extraneous quotation marks
 2017-06-27 23:53:42 +08:00
Alex Lam S.L
1e4de2e6d3 parse @global_defs as expressions (#2169) 
- let parser rejects non-conformant input
- eliminate need for extraneous parenthesis
 2017-06-27 10:31:19 +08:00
Alex Lam S.L
9db4c42380 fix cascade & collapse on property access of constants (#2158) 2017-06-24 21:30:06 +08:00
Alex Lam S.L
94e5e00c03 refactor compute_char_frequency() (#2152) 
- minimise maintenance when updating AST
- maximise code sharing between `master` & `harmony`
 2017-06-23 20:05:31 +08:00
Alex Lam S.L
dc6bcaa18e synchronise mangle.properties for minify() & test/compress (#2151) 2017-06-23 15:53:13 +08:00
Alex Lam S.L
d58b184835 refactor Compressor.toplevel (#2149) 2017-06-23 13:11:40 +08:00
Alex Lam S.L
b3a57ff019 minimise reduce_vars cloning overhead (#2148) 2017-06-23 06:59:53 +08:00
Alex Lam S.L
3d5bc08185 fix reduce_vars on this (#2145) 
fixes #2140
 2017-06-23 04:44:57 +08:00
Alex Lam S.L
0692435f01 fix for-in loop parsing (#2144) 2017-06-23 04:14:30 +08:00
Alex Lam S.L
343ea326c2 ensure mangling works if catch reuses a scope variable (#2123) 
fixes #2120
 2017-06-20 02:14:05 +08:00
Alex Lam S.L
0a0f4f5591 make defensive copies when inline (#2116) 
fixes #2114
 2017-06-17 14:32:37 +08:00
Alex Lam S.L
931daa85bf fix loss of context in collapse_vars & cascade (#2112) 
fixes #2110
 2017-06-16 21:18:43 +08:00
Alex Lam S.L
00e4f7b3c1 in-place tigten_body() (#2111) 
By reducing copies of `AST_Node` arrays, we should be able to reduce:
- memory pressure
- potential bugs caused by multiple references in AST
- duplicated executions of `OPT()`
 2017-06-16 19:19:54 +08:00
Alex Lam S.L
11e63bc335 correctly determine scope of AST_This (#2109) 
fixes #2107
 2017-06-16 14:54:46 +08:00
Alex Lam S.L
33405bb24b enforce inline scope restriction (#2106) 
fixes #2105
 2017-06-16 03:21:38 +08:00
Alex Lam S.L
b85a358deb suppress inline of this (#2103) 
fixes #2101
 2017-06-15 12:14:16 +08:00
Alex Lam S.L
3f961bbba0 compute uses_arguments correctly in figure_out_scope() (#2099) 
fixes #2097
 2017-06-15 03:28:26 +08:00
Alex Lam S.L
2bdc8802dd fix variable accounting in inline (#2085) 
fixes #2084
 2017-06-13 01:40:14 +08:00
Alex Lam S.L
293c566d6c marshal mangle[.properties].reserved from non-Array values (#2072) 2017-06-09 04:29:12 +08:00
Alex Lam S.L
9c306406f1 fix iteration over object with inherited properties (#2068) 
fixes #2055
 2017-06-08 03:27:03 +08:00
Alex Lam S.L
9db0695b10 fix cascade on multi-branch evaluations (#2067) 
Partially reverts #2059 as this has better coverage and performance.

fixes #2062
 2017-06-07 19:52:01 +08:00
Alex Lam S.L
b9ad53d1ab fix inline handling of AST_Call.args (#2059) 2017-06-06 22:55:25 +08:00
Alex Lam S.L
3493a182b2 implement function inlining (#2053) 
- empty body
- single `AST_Return`
- single `AST_SimpleStatement`
- avoid `/*#__PURE__*/`

Miscellaneous
- enhance single-use function substitution

fixes #281
 2017-06-06 05:49:53 +08:00
Alex Lam S.L
27c5284d3d workaround webkit parsing error (#2056) 
apply `webkit` to jetstream tests
 2017-06-06 04:06:42 +08:00
Alex Lam S.L
540220b91b fix AST_Function scope invariance (#2052) 
improve function name hack in `run_code()`
 2017-06-04 19:27:43 +08:00
Alex Lam S.L
1743621889 clean up lib/parse.js (#2047) 
- remove unused definitions
- replace `array_to_hash()`
 2017-06-03 14:00:59 +08:00
Alex Lam S.L
bac14ba881 fix non-identifier getter/setter name (#2041) 
fixes #2040
 2017-06-01 18:11:16 +08:00
Alex Lam S.L
ec095ed647 whitelist unsafe evaluate candidates (#2039) 
- all arguments may accept constant values
- return constant value
- free of side effects
- available & identical across locales and runtime environments
 2017-06-01 04:33:05 +08:00
Alex Lam S.L
17e73121fa enhance unsafe evaluate (#2037) 2017-06-01 00:56:28 +08:00
Alex Lam S.L
e9645e017f introduce unsafe_Func (#2033) 
Separate flag for #203 functionality.
 2017-05-31 03:38:00 +08:00
Alex Lam S.L
1aa38051fb better fix for #512 & #2010 (#2019) 
- remove duplicated functionalities
- fix similar issue with `else`
 2017-05-29 10:51:41 +08:00
Alex Lam S.L
c6c9f4f5a8 implement --help options (#2017) 2017-05-28 18:21:44 +08:00
Alex Lam S.L
7b13159cda fix hoist_funs on block-scoped function under "use strict" (#2013) 
Technically not part of ES5, but commonly used code exists in the wild.
 2017-05-27 17:44:59 +08:00
Alex Lam S.L
95094b9c22 fix if_return on AST_Defun (#2010) 
Previous fiix for #1052 perturbs declaration order of functions which leads to incorrect behaviour under "use strict".
 2017-05-27 13:41:49 +08:00
Alex Lam S.L
dc33facfcb fix dead_code on block-scoped function under "use strict" (#2006) 
Technically not part of ES5, but commonly used code exists in the wild.
 2017-05-26 16:08:51 +08:00
Alex Lam S.L
c70fb60384 clean up lib/scope.js (#2003) 
fixes #2004
 2017-05-26 03:58:35 +08:00
Alex Lam S.L
793d61499b report timing breakdown (#2000) 
fix corner cases with `sourceMap`

fixes #1998
 2017-05-25 07:15:55 +08:00
Alex Lam S.L
e667f0acb8 fix source map offset (#1993) 
Account for whitespace insertions.

fixes #505
fixes #890
 2017-05-23 20:25:48 +08:00
Alex Lam S.L
efdb65913b improve usability of global_defs in minify() (#1987) 
Use `@key` to `parse()` string value as `AST_Node`.

fixes #1986
 2017-05-22 01:38:43 +08:00
Alex Lam S.L
58fae7dc07 enhance if_return to handle return void... (#1977) 
fixes #512
 2017-05-20 15:58:46 +08:00
Alex Lam S.L
eae26756f1 introduce unsafe_regexp (#1970) 
fixes #1964
 2017-05-19 09:06:29 +08:00
Alex Lam S.L
569c21e952 improve RegExp handling (#1959) 
- remove `options.output.unescape_regexps`
- preserve original pattern whenever possible

fixes #54
fixes #1929
 2017-05-17 20:10:50 +08:00
Alex Lam S.L
87c3a2c0ce remove space_colon (#1960) 
Always emit space after colon when `options.output.beautify` is enabled.
 2017-05-17 14:07:34 +08:00
Alex Lam S.L
9464d3c20f fix parsing of property access after new line (#1944) 
Account for comments when detecting property access in `tokenizer`.

fixes #1943
 2017-05-16 05:40:49 +08:00
Alex Lam S.L
265008c948 improve keyword-related parser errors (#1941) 
fixes #1937
 2017-05-15 23:02:55 +08:00