Commit Graph

759 Commits

Author SHA1 Message Date
Alex Lam S.L
d3ce2bc9e7
suppress unsafe_proto for LHS expressions (#2804) 2018-01-17 20:41:51 +08:00
Alex Lam S.L
79cfac77bd
extend join_vars & sequences (#2798) 2018-01-17 13:58:27 +08:00
Alex Lam S.L
b4aef753e7
general improvements around AST_ForIn (#2796)
- compress using `collapse_vars`
- remove unused `name`
- simplify `loop_body`
2018-01-16 17:03:12 +08:00
Alex Lam S.L
10f961c27b
enhance collapse_vars (#2788) 2018-01-15 18:47:23 +08:00
Alex Lam S.L
b483678ca7
avoid suboptimal termination in passes (#2787) 2018-01-15 16:42:31 +08:00
Alex Lam S.L
cbbe6fad60
avoid double counting within single-use functions (#2785)
fixes #2783
2018-01-15 16:42:15 +08:00
Alex Lam S.L
62a66dfff4
fix & extend join_vars for object assigments (#2781) 2018-01-14 17:11:31 +08:00
Alex Lam S.L
e49416e4aa
fix reduce_vars on AST_Accessor (#2776)
fixes #2774
2018-01-13 02:46:14 +08:00
Alex Lam S.L
b757450cd8
fix nested unused assignments (#2769)
fixes #2768
2018-01-11 23:13:44 +08:00
Alex Lam S.L
23ec484806
fix corner case in #2763 (#2766) 2018-01-11 21:18:08 +08:00
Alex Lam S.L
f1e1bb419a
join object assignments (#2763) 2018-01-11 17:08:21 +08:00
Alex Lam S.L
6a0af85c8b
skip only vars in if_return (#2759)
fixes #2747
2018-01-10 19:08:46 +08:00
Alex Lam S.L
09269be974
enhance conditionals (#2758)
`x ? y || z : z` --> `x && y || z`
2018-01-10 16:59:57 +08:00
Alex Lam S.L
2972d58dbb
patch variable declaractions extracted within catch (#2753)
fixes #2749
2018-01-09 13:54:35 +08:00
Alex Lam S.L
ce27bcd69a
compress loops with immediate break (#2746)
fixes #2740
2018-01-08 14:30:18 +08:00
Alex Lam S.L
1ee8be8d91
fix recursive function inline (#2738)
fixes #2737
2018-01-07 15:31:24 +08:00
Alex Lam S.L
3564b4f20d
compress RegExp() in unsafe (#2735) 2018-01-06 21:04:47 +08:00
Alex Lam S.L
3505a3604a
enhance unsafe_proto (#2733) 2018-01-06 06:16:51 +08:00
Alex Lam S.L
b82feb9302
improve if_return (#2727) 2018-01-05 20:24:30 +08:00
Alex Lam S.L
7f2a591c7e
warn on deprecated features (#2726)
- `function.arguments`
- `function.callers`

fixes #2719
2018-01-05 19:36:02 +08:00
Alex Lam S.L
484e484571
fix corner case in inline (#2720) 2018-01-04 23:38:37 +08:00
Alex Lam S.L
a6873a3859
forbid block-scoped AST_Defun in strict mode (#2718) 2018-01-04 18:45:51 +08:00
Alex Lam S.L
7a6d452b54
preserve constant modification under strict mode (#2717) 2018-01-04 15:53:53 +08:00
Alex Lam S.L
9b58b54e2d
extend inline (#2714)
- compress `function` with variables within loops
- restrict to `AST_Var` for better compatibility with ES6+
2018-01-04 12:58:40 +08:00
Alex Lam S.L
c598a12af9
apply collapse_vars to loop conditions (#2712) 2018-01-04 03:18:28 +08:00
Alex Lam S.L
cfe3a98ce5
drop unused assignment based on reduce_vars (#2709) 2018-01-04 01:03:33 +08:00
Alex Lam S.L
14778e049b
fix reduce_vars on AST_Defun (#2708) 2018-01-03 17:18:38 +08:00
Alex Lam S.L
7d3cddf9d6
inline functions with AST_Var (#2688) 2018-01-03 01:54:44 +08:00
Alex Lam S.L
6dead95eb3
enhance collapse_vars (#2704) 2018-01-02 18:42:15 +08:00
Alex Lam S.L
cc931b3ad8
enhance if_return (#2703) 2018-01-02 15:09:51 +08:00
Alex Lam S.L
d838b4b52e
reset argument value within loop after inline (#2699) 2018-01-02 01:24:53 +08:00
Alex Lam S.L
2f3bddbaca
scan within IIFEs of assigned values (#2702)
fixes #2701
2018-01-02 01:24:23 +08:00
Alex Lam S.L
673b071637
enhance join_vars & sequences (#2697)
- nudge declarations without assignments
  - within `AST_BlockStatement`
  - across `AST_If`
2018-01-01 00:09:26 +08:00
Alex Lam S.L
da82fa59a7
fix inline on duplicate argument names (#2698) 2017-12-31 20:59:58 +08:00
Alex Lam S.L
333792352e
reduce hoisting declarations (#2687) 2017-12-31 16:15:00 +08:00
Alex Lam S.L
ed7a0a454e
fix dead_code on escaped return assignment (#2693)
fixes #2692
2017-12-30 15:20:25 +08:00
Alex Lam S.L
d819559a01
minor clean-ups (#2686) 2017-12-29 14:04:52 +08:00
Alex Lam S.L
b95e3338d9
fix pure_getters on AST_Binary (#2681)
fixes #2678
2017-12-28 17:01:01 +08:00
Alex Lam S.L
cb62bd98d3
fix function inlining within loops (#2675)
fixes #2663
2017-12-28 02:53:14 +08:00
Alex Lam S.L
f30790b11b
fix dead_code on return assignments (#2668)
fixes #2666
2017-12-27 07:40:34 +08:00
Alex Lam S.L
5205dbcbf4
retain recursive function names (#2667)
fixes #2665
2017-12-27 07:00:12 +08:00
Alex Lam S.L
3ff625de7e
fix bugs on substituted AST_Defun (#2661)
fixes #2660
2017-12-27 05:31:37 +08:00
Alex Lam S.L
4832bc5d88
replace single-use recursive functions (#2659)
fixes #2628
2017-12-26 21:25:35 +08:00
Alex Lam S.L
7f342cb3e3
suppress inline within substituted AST_Scope (#2658)
fixes #2657
2017-12-26 18:56:59 +08:00
Alex Lam S.L
05e7d34ed4
improve unused over duplicate variable names (#2656) 2017-12-26 18:29:28 +08:00
Alex Lam S.L
1476c78b53
add html-minifier to benchmarks (#2646) 2017-12-25 03:07:46 +08:00
Alex Lam S.L
cb6a92892f
fix infinite loop during inline (#2645)
fixes #2644
2017-12-25 01:57:11 +08:00
Alex Lam S.L
efffb81735
fix comments output & improve /*@__PURE__*/
- fix whitespace around comments
- fix comment parsing around parentheses
- consider parentheses when parsing `/*@__PURE__*/`
- remove all `/*@__PURE__*/` on output

fixes #2638
2017-12-24 12:38:45 +08:00
Alex Lam S.L
202f90ef8f
fix corner cases with collapse_vars, inline & reduce_vars (#2637)
fixes #2630
2017-12-24 01:24:12 +08:00
Alex Lam S.L
c07ea17c01
fix escape analysis on AST_PropAccess (#2636) 2017-12-24 00:36:46 +08:00
Alex Lam S.L
7ac7b0872f
remove AST hack from inline (#2627) 2017-12-20 17:05:53 +08:00
Alex Lam S.L
86ae5881b7
disable hoist_funs by default (#2626) 2017-12-20 17:05:40 +08:00
Alex Lam S.L
fac003c64f
avoid inline of function with special argument names (#2625) 2017-12-20 02:48:04 +08:00
Alex Lam S.L
2273655c17
fix inline after single-use reduce_vars (#2623) 2017-12-19 22:19:33 +08:00
Alex Lam S.L
4b334edf49
handle global constant collision with local variable after inline (#2617)
fixes #2616
2017-12-19 03:05:30 +08:00
Alex Lam S.L
8ddcbc39e6
compress apply() & call() of function (#2613)
- `fn.apply(a, [ ... ])` => `fn.call(a, ...)`
- `fn.call(a, ... )` => `a, fn(...)`

where `fn` can be `function` literal or symbol reference linked through `reduce_vars`
2017-12-18 16:23:39 +08:00
Alex Lam S.L
0b0eac1d5d
drop property assignment to constants (#2612) 2017-12-18 12:07:53 +08:00
Alex Lam S.L
b29fc8b27c
improve transversal efficiency in collapse_vars (#2611)
fixes #2603
2017-12-18 03:00:05 +08:00
Alex Lam S.L
7918a50d52
improve reset_opt_flags() (#2610) 2017-12-17 23:01:08 +08:00
Alex Lam S.L
21794c9b8d
account for catch variable when inline (#2605)
fixes #2604
2017-12-16 15:21:09 +08:00
Alex Lam S.L
6c686ce593
fix nested inline (#2602)
fixes #2601
2017-12-16 02:16:35 +08:00
Alex Lam S.L
db902af4c6
fix escape analysis on || and && (#2600)
fixes #2598
2017-12-15 19:48:14 +08:00
Alex Lam S.L
7d6907cb99
fix dead_code on nested try (#2599)
fixes #2597
2017-12-15 19:41:28 +08:00
Alex Lam S.L
092d9affb8
fix reduce_vars on do...while (#2596) 2017-12-15 16:33:19 +08:00
Alex Lam S.L
8f681b1d17
handle inline of function arguments (#2590)
fixes #2476
2017-12-15 13:28:30 +08:00
Alex Lam S.L
90313875f7
inline single-use function across loop (#2594) 2017-12-14 19:24:54 +08:00
Alex Lam S.L
3f18a61532
fix reduce_vars on single AST_Defun reference across loop (#2593) 2017-12-14 18:47:05 +08:00
Alex Lam S.L
02a6ce07eb
improve reduce_vars (#2592)
- account for hoisting nature of `var`
2017-12-14 15:32:13 +08:00
Alex Lam S.L
738fd52bc4
improve collapse_vars (#2591)
- handle single-use assignments other than `AST_VarDef`
- scan `AST_Call` for candidates
2017-12-14 15:31:35 +08:00
Alex Lam S.L
8266993c6e
fix dead_code on return/throw within try (#2588) 2017-12-14 04:38:21 +08:00
Alex Lam S.L
9a137e8613
drop local assign-only variable in return (#2587) 2017-12-14 02:59:59 +08:00
Alex Lam S.L
ef618332ea
fold cascade functionality into collapse_vars (#2586) 2017-12-14 01:20:36 +08:00
Alex Lam S.L
7f418978c9
recover lost opportunities from #2574 (#2584) 2017-12-13 18:20:53 +08:00
Alex Lam S.L
04cc395c35
improve collapse_vars on side-effect-free replacements (#2583) 2017-12-13 04:52:54 +08:00
Alex Lam S.L
e008dc1bde
minor clean-up for IIFE (#2582)
- faster exact type match
- aggressively convert to `!`
2017-12-13 01:27:26 +08:00
Alex Lam S.L
ebfd5c5c74
fix AST_VarDef.may_throw() (#2580) 2017-12-12 03:30:25 +08:00
Alex Lam S.L
f2ad542679
fix collapse_vars on switch (#2578) 2017-12-11 18:11:09 +08:00
Alex Lam S.L
0e16d92786
handle exceptional flow correctly in collapse_vars (#2574)
fixes #2571
2017-12-11 00:16:02 +08:00
Alex Lam S.L
0aff037a35
improve unused on assign-only symbols (#2568) 2017-12-09 06:19:29 +08:00
Alex Lam S.L
74a2f53683
fix escape analysis for AST_Throw (#2564) 2017-12-08 02:54:37 +08:00
Alex Lam S.L
e20935c3f2
fix escape analysis for AST_Conditional & AST_Sequence (#2563)
fixes #2560
2017-12-08 01:50:38 +08:00
Alex Lam S.L
3e34f62a1c
account for side-effects in conditional call inversion (#2562)
fixes #2560
2017-12-08 01:15:31 +08:00
Alex Lam S.L
d21cb84696
eliminate noop calls more aggressively (#2559) 2017-12-07 01:22:08 +08:00
Alex Lam S.L
3dd495ecdd
improve if_return (#2558)
`return void x()` => `x()`
2017-12-07 01:01:52 +08:00
Alex Lam S.L
77332a0315
fix dead_code on for (#2552) 2017-12-02 15:46:05 +08:00
Alex Lam S.L
8da3754e51
improve evaluate on typeof (#2550)
- gated through `typeofs`
2017-12-02 02:18:33 +08:00
Alex Lam S.L
9a6b11f8e6
improve boolean compression (#2548)
fixes #2535
2017-12-01 22:41:35 +08:00
Alex Lam S.L
7ac6fdcc99
improve switch case compression (#2547) 2017-12-01 14:32:00 +08:00
Alex Lam S.L
f6610baaa8
improve AST_For.init & AST_Switch.expression compression (#2546) 2017-12-01 12:53:59 +08:00
Alex Lam S.L
09b320e8a5
convert to number under boolean context (#2545) 2017-12-01 12:52:36 +08:00
Alex Lam S.L
5a1e99d713
improve compression of if conditions (#2544) 2017-12-01 06:18:31 +08:00
Alex Lam S.L
b762f2d6f4
improve compression of loop conditions (#2543) 2017-12-01 05:52:33 +08:00
Alex Lam S.L
172079a47f
improve code reuse (#2542) 2017-12-01 03:40:46 +08:00
Alex Lam S.L
c58d3936a3
fix corner case in call binding (#2541) 2017-12-01 03:18:20 +08:00
Alex Lam S.L
bc5047c1e7
fix inline on nested substitutions (#2533)
fixes #2531
2017-11-29 13:31:41 +08:00
Alex Lam S.L
206a54a746
fix nested hoist_props substitution (#2523)
fixes #2519
2017-11-28 14:39:00 +08:00
Alex Lam S.L
32def5ebf5
improve synergy between collapse_vars & unused (#2521) 2017-11-28 14:02:39 +08:00
Alex Lam S.L
ecc9f6b770
drop assignment in AST_VarDef.value (#2522)
fixes #2516
2017-11-28 13:08:40 +08:00
Alex Lam S.L
c141ae6f8d
fix argument/atom collision by properties (#2514)
fixes #2513
2017-11-25 22:52:46 +08:00
Alex Lam S.L
3b28b915eb
extend escape analysis on constant expression properties (#2509)
fixes #2508
2017-11-24 14:07:39 +08:00
Alex Lam S.L
eb001dc1d9
fix argument/atom collision by collapse_vars (#2507)
fixes #2506
2017-11-24 07:26:22 +08:00
Alex Lam S.L
aa9bdf416e
make AST_Lambda.contains_this() less magical (#2505) 2017-11-24 07:03:37 +08:00
Alex Lam S.L
8987780db6
eliminate invalid state caching in collapse_vars (#2502)
fixes #2497
2017-11-24 04:12:37 +08:00
Alex Lam S.L
b80062c490
enable hoist_props by default (#2492) 2017-11-19 14:56:23 +08:00
Alex Lam S.L
ae28a24c7f
fix cross-scope inlining of AST_Functions (#2486)
fixes #2485
2017-11-16 10:04:30 +08:00
Alex Lam S.L
ebe761cad0
minor consolidations (#2484)
- unique symbol generation
- `unsafe` on `AST_Call`
2017-11-16 04:37:37 +08:00
Alex Lam S.L
49fbe9c5ac
fix replacement logic in collapse_vars (#2475) 2017-11-13 07:37:42 +08:00
Alex Lam S.L
2ac5086831
fix top_retain on hoist_props (#2474)
fixes #2473
2017-11-13 00:59:41 +08:00
Alex Lam S.L
c6cfa04d10
allow symbol replacement on multiple occurrences (#2472)
- all-or-nothing replacement
- avoid unmangleable names

fixes #2436
2017-11-12 22:31:47 +08:00
Alex Lam S.L
cda27b0970
extend reduce_funcs to cover cross-scope substitutions (#2469)
fixes #2468
2017-11-11 15:30:17 +08:00
Alex Lam S.L
3c74047368
implement compress option reduce_funcs (#2466)
- inline single-use function declarations as expressions when permissible
- depend on `reduce_vars`
- enabled by default
- disable for speed critical code

fixes #2464
2017-11-11 05:59:35 +08:00
Alex Lam S.L
94525d859f
fix object literal tracing in reduce_vars (#2461) 2017-11-10 05:47:10 +08:00
Alex Lam S.L
1127a2caf3
fix multiple nested function substitutions (#2458)
fixes #2449
2017-11-09 23:30:00 +08:00
Alex Lam S.L
246d9d4e83
remove hack in collapse_vars (#2457)
fixes #2456
2017-11-09 20:00:58 +08:00
Alex Lam S.L
4c0b0177b6
preserve function identity in reduce_vars (#2451)
fixes #2450
2017-11-08 03:28:46 +08:00
Alex Lam S.L
bbedbf4ea0
handle circular function reference gracefully (#2446)
fixes #2442
2017-11-07 02:37:23 +08:00
Alex Lam S.L
2cfb5aa7da
account for eval & with in reduce_vars (#2441)
fixes #2440
2017-11-06 16:10:57 +08:00
Alex Lam S.L
6c45101870
consolidate & enhance unused (#2439)
- defer declaration removal in `collapse_vars`
- account for `AST_SymbolFunarg` in deduplication
- private accounting for `collapse_vars`
- avoid issues with identity reference due to deep cloning

fixes #2437
2017-11-06 14:25:10 +08:00
Alex Lam S.L
2c2fd89e34
inline single-use functions that are not constant expressions (#2434)
fixes #2428
2017-11-05 22:14:11 +08:00
Alex Lam S.L
5b4b07e9a7
extend function inlining safety checks (#2430) 2017-11-05 06:18:45 +08:00
Alex Lam S.L
a8aa28a7a6
consolidate single-use function reduction (#2427)
fixes #2423
2017-11-05 04:27:01 +08:00
Alex Lam S.L
fe5a68f9d5
maintain call argument order in collapse_vars (#2426)
fixes #2425
2017-11-05 00:00:18 +08:00
Alex Lam S.L
c8b6f4733d
reduce this within functions (#2421)
- only replace same-scope usages
- augment `test/ufuzz.js` to test for `this`


fixes #2420
2017-11-04 00:31:37 +08:00
Alex Lam S.L
a48f87abf2
compress new function containing this (#2417) 2017-10-30 23:19:27 +08:00
Alex Lam S.L
8428326ea1
enhance properties (#2412)
- trim array items only if `side_effects`
- extend to non-identifier properties
2017-10-29 04:11:26 +08:00
Alex Lam S.L
31f8209193 remove dead code (#2405) 2017-10-27 14:28:09 +08:00
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
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
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
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
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
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
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
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
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
2bdc8802dd fix variable accounting in inline (#2085)
fixes #2084
2017-06-13 01:40:14 +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
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
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
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
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
3ca902258c fix bugs with getter/setter (#1926)
- `reduce_vars`
- `side_effects`
- property access for object
- `AST_SymbolAccessor` as key names

enhance `test/ufuzz.js`
- add object getter & setter
  - property assignment to setter
  - avoid infinite recursion in setter
- fix & adjust assignment operators
  - 50% `=`
  - 25% `+=`
  - 2.5% each for the rest
- avoid "Invalid array length"
- fix `console.log()`
  - bypass getter
  - curb recursive reference
- deprecate `-E`, always report runtime errors
2017-05-14 02:10:34 +08:00