Commit Graph

84 Commits

Author SHA1 Message Date
Alex Lam S.L
fe51a91395 handle negated constants correctly in collapse_vars (#2975)
fixes #2974
2018-03-06 00:45:58 +08:00
Alex Lam S.L
0daa199fa8 migrate safe transformations out of unsafe_comps (#2962)
fixes #2959
2018-02-28 22:02:24 +08:00
Alex Lam S.L
73e98dcda4 drop side_effects-free return values (#2965) 2018-02-28 19:59:19 +08:00
Alex Lam S.L
36bca6934d enhance collapse_vars (#2952)
- `a = b, b` => `a = b`
- `a.b = c, c()` => `(a.b = c)()`
2018-02-28 15:19:32 +08:00
Alex Lam S.L
b8b2ac5230 improve fix for #2954 (#2958) 2018-02-26 03:14:22 +08:00
Alex Lam S.L
ea2359381b fix collapse_vars on nested exception (#2955)
fixes #2954
2018-02-25 15:39:00 +08:00
Alex Lam S.L
4b5993ff15 fix crash in may_throw() (#2932)
fixes #2931
2018-02-18 21:51:27 +08:00
Alex Lam S.L
7fdd2082a6 drop unused "class" definition IIFEs (#2923)
fixes #805
2018-02-17 05:11:31 +08:00
Alex Lam S.L
83d8aa8b12 fix collapse_vars within loops (#2915)
fixes #2914
2018-02-14 05:15:52 +08:00
Alex Lam S.L
0c4f315c02 fix corner case in collapse_vars (#2909)
fixes #2908
2018-02-13 01:41:22 +08:00
Alex Lam S.L
d66d86f20b account for exceptions in AST_Assign.left (#2892)
fixes #2891
2018-02-08 03:31:51 +08:00
Alex Lam S.L
3026bd8975 improve exceptional flow compression by collapse_vars (#2880) 2018-02-04 04:18:22 +08:00
Alex Lam S.L
78a44d5ab0 maintain order between side-effects and externally observable assignments (#2879)
fixes #2878
2018-02-04 03:58:49 +08:00
Alex Lam S.L
7e13c0db40 handle break & continue in collapse_vars (#2875)
fixes #2873
2018-02-03 07:58:43 +08:00
Alex Lam S.L
e6a2e9e4d0 allow collapse_vars across conditional branches (#2867) 2018-02-03 02:44:40 +08:00
Alex Lam S.L
b16380d669 fix missing corner case in #2855 (#2868) 2018-02-02 18:08:56 +08:00
Alex Lam S.L
102f994b9d account for declaration assignment in collapse_vars (#2859)
fixes #2858
2018-02-01 15:09:53 +08:00
Alex Lam S.L
2a4c68be4f relax collapse_vars on AST_Exit (#2855)
First introduced in #1862 to stop assignments to migrate beyond `return` or `throw`. Since then `collapse_vars` has been improved to handle various side-effect-related corner cases.
2018-01-31 23:49:59 +08:00
Alex Lam S.L
6fa3fbeae8 compress chained compound assignments (#2850) 2018-01-29 15:13:25 +08:00
Alex Lam S.L
3e7873217c improve unused on built-in functions (#2817) 2018-01-19 20:41:57 +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
2972d58dbb patch variable declaractions extracted within catch (#2753)
fixes #2749
2018-01-09 13:54:35 +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
b29fc8b27c improve transversal efficiency in collapse_vars (#2611)
fixes #2603
2017-12-18 03:00:05 +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
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
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
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
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
eb001dc1d9 fix argument/atom collision by collapse_vars (#2507)
fixes #2506
2017-11-24 07:26:22 +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
49fbe9c5ac fix replacement logic in collapse_vars (#2475) 2017-11-13 07:37:42 +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
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
1127a2caf3 fix multiple nested function substitutions (#2458)
fixes #2449
2017-11-09 23:30:00 +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
fe5a68f9d5 maintain call argument order in collapse_vars (#2426)
fixes #2425
2017-11-05 00:00:18 +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
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
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