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1206 Commits

Author SHA1 Message Date
alexlamsl
5ffc17d4aa fix corner case in unused 2018-07-01 14:34:42 +08:00
Alex Lam S.L
76df77c08c
implement directives (#3203) 
fixes #3166
 2018-06-28 18:16:49 +08:00
Alex Lam S.L
957d5537a8
improve unsafe comparisons (#3200) 2018-06-28 03:46:19 +08:00
Alex Lam S.L
ab36b9b10a fix corner case in ie8 (#3198) 
fixes #3197
 2018-06-24 04:00:36 +08:00
Alex Lam S.L
28330913d8 improve mocha tests (#3195) 2018-06-24 04:00:36 +08:00
Alex Lam S.L
766a4147d4 enhance arguments (#3193) 
fixes #3192
 2018-06-24 04:00:21 +08:00
Alex Lam S.L
e54ddcbb8a
fix corner cases in properties (#3189) 
fixes #3188
 2018-06-19 18:20:11 +08:00
Alex Lam S.L
9e19e63551
general clean-ups (#3175) 2018-06-06 17:50:56 +08:00
Jiavan
b39043f3ab re-introduce enclose (#3163) 
fixes #2443
 2018-06-01 16:47:11 +08:00
Alex Lam S.L
caf96acb08
handle asynchronous test failures (#3164) 2018-05-31 20:21:39 +08:00
Alex Lam S.L
c76749084b
update JetStream URL (#3165) 2018-05-31 16:23:49 +08:00
Alex Lam S.L
efa21ae3e6
fix corner case in reduce_vars (#3151) 2018-05-26 05:45:44 +08:00
Alex Lam S.L
24d9633a35
fix corner cases with eval() (#3147) 
fixes #3146
 2018-05-24 14:29:30 +08:00
Alex Lam S.L
7963b96681
augment tests for inline source maps (#3145) 2018-05-24 02:37:51 +08:00
Alex Lam S.L
8c62d854ce
augment tests for RegExp (#3144) 2018-05-23 17:24:13 +08:00
Alex Lam S.L
b5af8a1914
fix corner case in reduce_vars (#3141) 
fixes #3140
 2018-05-21 15:53:51 +08:00
Alex Lam S.L
4fc39d8dad
fix corner case in collapse_vars (#3139) 2018-05-19 05:45:14 +08:00
Alex Lam S.L
1a0d6edc81
remove colors dependency (#3133) 2018-05-13 07:50:02 +08:00
Alex Lam S.L
7b59b2f5b2
replace mocha dependency (#3131) 2018-05-11 20:15:34 +08:00
Alex Lam S.L
7bc7704edf
fix corner case in reduce_vars (#3129) 2018-05-10 18:45:20 +08:00
Alex Lam S.L
14e712ee80
fix corner case in call binding (#3128) 
fixes #3127
 2018-05-10 06:16:35 +08:00
Alex Lam S.L
df8a99439a
fix various corner cases (#3126) 
- augment ufuzz/reminify test options

fixes #3125
 2018-05-07 07:36:25 +08:00
Alex Lam S.L
6b91d12ec3
fix corner case in reduce_vars (#3124) 2018-05-06 16:42:35 +08:00
Alex Lam S.L
f37b91879f
fix various corner cases (#3123) 2018-05-05 13:17:50 +08:00
Alex Lam S.L
c4cebb4b01
fix reduce_vars on nested invocations (#3118) 2018-05-04 06:05:38 +08:00
Alex Lam S.L
d51a00a450
compress AST_Sequence within AST_Call (#3117) 2018-05-03 19:14:56 +08:00
Alex Lam S.L
fc0f168a0c
better fix for #3113 (#3115) 2018-05-03 15:51:51 +08:00
Alex Lam S.L
a0ca595c2c
fix TreeWalker scan order (#3114) 
fixes #3113
 2018-05-03 00:27:45 +08:00
Alex Lam S.L
1a314e9f60
improve reduce_vars (#3112) 
fixes #3110
 2018-05-02 15:11:45 +08:00
Alex Lam S.L
22cea023d1
improve numeral compression (#3108) 2018-04-28 02:47:49 +08:00
Alex Lam S.L
70d4477e05
workaround vm context issue in node-chakracore (#3106) 2018-04-27 07:40:34 +08:00
Alex Lam S.L
69fc7ca8da
workaround test failures in Node.js 10 (#3102) 2018-04-26 17:44:37 +08:00
Alex Lam S.L
0a79496e0a
workaround stack overflow in ChakraCore (#3101) 2018-04-26 15:02:17 +08:00
Alex Lam S.L
9e87edfc2e
better fix for #2506 (#3099) 2018-04-25 04:46:07 +08:00
Alex Lam S.L
27211cf2d5
handle RHS side-effects in collapse_vars (#3097) 
fixes #3096
 2018-04-24 20:31:50 +08:00
Alex Lam S.L
b5ce199711
improve max_line_len (#3095) 
fixes #304
 2018-04-24 15:19:45 +08:00
Alex Lam S.L
d83c6490ab
fix corner case in strip_func_ids() (#3090) 2018-04-19 04:51:42 +08:00
Alex Lam S.L
6a916523d4
fix inline of catch-scoped variables (#3077) 
fixes #3076
 2018-04-11 15:44:43 +08:00
Alex Lam S.L
ba7069d52b
suppress hoist_props for embedded assignments (#3074) 2018-04-11 05:19:16 +08:00
Alex Lam S.L
4dd7d0e39b
extend hoist_props (#3073) 
- handle `AST_Assign` the same way as `AST_VarDef`
- inject `AST_Var` as succeeding statement

fixes #3071
 2018-04-11 02:48:15 +08:00
Alex Lam S.L
90199d0a96
extend join_vars on object assignments (#3072) 2018-04-11 01:35:42 +08:00
Alex Lam S.L
b82fd0ad41
handle flow control in loops with reduce_vars (#3069) 
fixes #3068
 2018-04-10 06:51:03 +08:00
Alex Lam S.L
183da16896
handle pure_funcs under inline & reduce_vars correctly (#3066) 
fixes #3065
 2018-04-10 02:46:38 +08:00
Alex Lam S.L
db49daf365
mangle Object.defineProperty() (#3059) 
fixes #869
 2018-04-06 17:10:36 +08:00
Alex Lam S.L
923deeff35
support inline source map from multiple files (#3058) 
fixes #145
 2018-04-06 16:04:15 +08:00
Alex Lam S.L
0b62a28b47
improve usability of includeSources (#3057) 
Exclude source contents from input source map if `includeSources=false`

fixes #3041
 2018-04-06 13:32:26 +08:00
Alex Lam S.L
44116c6d2b
fix AST corruption during inline of simple return (#3056) 
fixes #3054
 2018-04-06 05:39:07 +08:00
Alex Lam S.L
b5bab254ce
speed up has_parens() (take 2) (#3052) 
fixes #3050
 2018-04-05 04:12:04 +08:00
Alex Lam S.L
e67553fa55
fix tree traversal on AST_Do (#3047) 
fixes #3046
 2018-04-02 22:31:23 +08:00
b-fuze
8adfc29f91 Don't load source map until the JS source is fully received (#3040) 2018-03-31 20:26:40 +09:00
Alex Lam S.L
02f47e1713
give sensible error against invalid input source map (#3044) 2018-03-31 18:48:20 +09:00
Alex Lam S.L
07f64d4050
fix escape analysis on AST_New (#3043) 
fixes #3042
 2018-03-31 15:03:46 +09:00
Alex Lam S.L
fa3250199a
mangle unused nested AST_SymbolCatch correctly (#3038) 
fixes #3035
 2018-03-30 16:23:09 +09:00
Alex Lam S.L
06b9894c19
handle modifications to this correctly (#3036) 
fixes #3032
 2018-03-30 15:07:36 +09:00
Alex Lam S.L
9f9db504d7
improve test for #3023 (#3031) 2018-03-29 23:36:40 +09:00
Alex Lam S.L
82ae95c334
improve source map granularity (#3030) 
fixes #3023
 2018-03-29 14:47:55 +09:00
Fábio Santos
9a5e2052c4 fix extra regex slash when going through mozilla AST I/O (#3025) 
This relates to #1929, but in the context of mozilla AST input/output.
 2018-03-27 03:22:01 +09:00
Alex Lam S.L
12985d86c2
fix corner case in hoist_props (#3022) 
fixes #3021
 2018-03-23 07:27:35 +08:00
Alex Lam S.L
49bfc6b555
improve performance (#3020) 
- replace `find_if()` with `all()` wherever possible
- move ESTree-specific logic out of `figure_out_scope()`
 2018-03-23 03:43:52 +08:00
Alex Lam S.L
d1c6bb8c7c
fix nested inline within loop (#3019) 
fixes #3018
 2018-03-23 02:31:59 +08:00
Alex Lam S.L
5c169615a8
fix corner case in inline (#3017) 
fixes #3016
 2018-03-22 23:46:26 +08:00
Alex Lam S.L
ccf0e2ef4f
extend fuzzy RHS folding (#3006) 
- `a = []; if (1) x();` => `if (a = []) x();`
 2018-03-17 03:10:21 +08:00
Alex Lam S.L
20ca0f5906
improve truthy compression (#3009) 2018-03-16 06:12:59 +08:00
Alex Lam S.L
b29d435bb5
refactor brackets to braces (#3005) 2018-03-15 15:46:45 +08:00
Alex Lam S.L
188c39e8d5
retain comments within brackets (#2999) 
fixes #2998
 2018-03-13 18:44:21 +08:00
Alex Lam S.L
5429234138
preserve non-constant value assignments with modifications (#2997) 
fixes #2995
 2018-03-13 17:35:34 +08:00
Alex Lam S.L
b9f72a4a81
handle case correctly under reduce_vars (#2993) 
fixes #2992
 2018-03-11 15:54:43 +08:00
Alex Lam S.L
fc6ebd04a5
preserve case when inline_script (#2991) 
fixes #2989
 2018-03-11 05:11:12 +08:00
Alex Lam S.L
10b3752b1e
fix mangle of AST_SymbolLambda under ie8 (#2978) 
fixes #2976
 2018-03-07 17:20:38 +08:00
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
798fc21530
improve test/run-test.js performance (#2971) 
- allow reuse of contextified sandbox
- minimise bottleneck from `vm.createContext()`
 2018-03-04 04:50:00 +08:00
Alex Lam S.L
a75a046abb
compress arguments[index] (#2967) 
- always replace with existing parameter
- only introduce new parameter if `keep_fargs` is disabled
 2018-03-02 11:22:09 +08:00
Alex Lam S.L
38f2b4579f
fix value reference caching in evaluate (#2969) 
fixes #2968
 2018-03-02 04:04:29 +08:00
Alex Lam S.L
56e2a369d0
enhance conditionals (#2966) 
- `x ? (y, w) : (z, w)` => `x ? y : z, w`
 2018-02-28 23:34:48 +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
ace5811691
drop lone "use strict" in function body (#2963) 
fixes #2961
 2018-02-26 15:22:52 +08:00
Dan
ba7bad0dbd show benchmark subtotal (#2960) 
At the end of the benchmark, sums of the input, output and
gzip values are shown, such as:

    Subtotal

    Original: 7785102 bytes
    Uglified: 2283862 bytes
    GZipped:  662354 bytes
 2018-02-26 11:46:26 +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
52de64cf16
deduplicate parenthesis around object and function literals (#2953) 2018-02-25 02:14:33 +08:00
Alex Lam S.L
455790202a
minor clean-ups (#2951) 2018-02-24 02:24:47 +08:00
Alex Lam S.L
f40f5eb228
improve mangle (#2948) 2018-02-23 23:51:49 +08:00
Alex Lam S.L
29a71d3aae
more tests for #2938 (#2940) 2018-02-21 04:19:42 +08:00
Alex Lam S.L
39a907bde3
workaround pure_getters=true when dropping unused assignments (#2939) 
fixes #2938
 2018-02-20 17:38:40 +08:00
Alex Lam S.L
70474310f3
improve unsafe evaluate of function (#2936) 
Miscellaneous
- simplify `run_code()` hack
 2018-02-19 18:47:02 +08:00
Alex Lam S.L
b5f0f4f3a1
reduce false positives from object literals (#2935) 2018-02-19 06:21:07 +08:00
Alex Lam S.L
2905fd625a
reduce false positives from labels (#2934) 2018-02-19 03:55:33 +08:00
Alex Lam S.L
4facd94029
reduce false positives from noop (#2933) 2018-02-19 01:15:05 +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
2351a672ea
fix dead_code on exceptional return (#2930) 
fixes #2929
 2018-02-18 04:36:00 +08:00
Alex Lam S.L
4a528c469c
reduce false positives from function.toString() (#2928) 2018-02-18 02:13:26 +08:00
Alex Lam S.L
82d1ef0242
fix unsafe evaluate of function property (#2927) 
fixes #2926
 2018-02-17 21:33:36 +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
e529f54e90
reduce function-related false positives (#2925) 2018-02-17 04:35:03 +08:00
Alex Lam S.L
d626e9bf19
improve inline efficiency (#2924) 2018-02-17 02:37:13 +08:00
Alex Lam S.L
a2a9459684
fix unsafe evaluate of AST_Function (#2920) 
fixes #2919
 2018-02-16 17:21:46 +08:00
Alex Lam S.L
d316fb139d
fix unsafe evaluate on type-converting operators (#2917) 
fixes #2916
 2018-02-14 16:48:47 +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
4f1c12b6fd
report options upon reminify input error (#2911) 2018-02-13 07:29:39 +08:00
Alex Lam S.L
d8e0e34354
collapse within unary expressions (#2910) 2018-02-13 07:10:37 +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
0809699bdc
simplify do-while into for (#2907) 
fixes #2904
 2018-02-12 23:28:28 +08:00
Alex Lam S.L
2088e1c19d
fix AST corruption due to collapse_vars & inline (#2899) 
fixes #2898
 2018-02-09 06:54:37 +08:00
Alex Lam S.L
bf1d47180c
fix join_vars on property accessors (#2895) 
fixes #2893
 2018-02-09 01:52:39 +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
d69d8007d6
evaluate to{Low,Upp}erCase() under unsafe (#2886) 2018-02-06 15:57:15 +08:00
Dan
9637f51b68 change undefined == x to null == x (#2882) 
fixes #2871
 2018-02-05 15:00:23 +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
e773f03927
fix assignment logic in reduce_vars (#2872) 
fixes #2869
 2018-02-03 01:33:09 +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
3cc1527f00
always test for rename (#2865) 2018-02-01 21:42:55 +08:00
Alex Lam S.L
c3a002ff97
account for side-effects in comparisons of null & undefined (#2863) 2018-02-01 19:15:17 +08:00
Alex Lam S.L
fad6766a90
simplify comparisons with undefined & null (#2862) 
fixes #2857
 2018-02-01 16:50:54 +08:00
Alex Lam S.L
aa664dea0a
avoid evaluate of compound assignment after dead_code transform (#2861) 
fixes #2860
 2018-02-01 16:18:29 +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
541e6011af
improve symbol replacement heuristic (#2851) 2018-01-29 17:41:15 +08:00
Alex Lam S.L
6fa3fbeae8
compress chained compound assignments (#2850) 2018-01-29 15:13:25 +08:00
Alex Lam S.L
193612ac67
fix accounting after conversion to assignment (#2847) 
Missing reference to `AST_SymbolRef` created by `unused` causes `collapse_vars` to misbehave.

fixes #2846
 2018-01-26 14:21:11 +08:00
Alex Lam S.L
ec4202590d
drop assignments to constant expressions only (#2839) 
fixes #2838
 2018-01-23 02:49:54 +08:00
Alex Lam S.L
5e2cd07d6f
handle duplicate function declarations correctly (#2837) 
fixes #2836
 2018-01-23 01:28:09 +08:00
Alex Lam S.L
e2dc9cf091
fix unsafe evaluate of AST_Array (#2825) 
fixes #2822
 2018-01-21 01:39:44 +08:00
Alex Lam S.L
069df27bf1
enable unsafe for test/ufuzz.js (#2819) 
- introduce `unsafe_undefined`
- safer `.toString()` compression

Miscellaneous
- rename `unsafe_Function`
 2018-01-19 23:47:42 +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
e21bab7ce6
avoid duplicate property names in object literals under "use strict" (#2818) 
fixes #2816
 2018-01-19 20:13:50 +08:00
Alex Lam S.L
ac9a168fba fix & improve test/ufuzz.js (#2815) 
- use correct `options` when testing `rename`
- mask arbitrarily assigned function IDs to reduce rate of false positives
 2018-01-19 16:51:59 +08:00
Alex Lam S.L
81b64549ce
fix time-out for respawned test/ufuzz.js (#2814) 2018-01-19 06:11:19 +08:00
Alex Lam S.L
082e004b87
compress undefined property names (#2811) 
- enforce property names as string
- handle `void 0` as `undefined` in `hoist_props` & `reduce_vars`
 2018-01-19 00:36:30 +08:00
kzc
983e69128b fix join_vars property assignment for negative array index (#2810) 
fixes #2790
 2018-01-18 21:52:54 +08:00
Alex Lam S.L
b335912e86
enhance test/ufuzz.js (#2808) 
- standalone test for `rename`
- handle `keep_fargs` & `rename` upon failure
 2018-01-18 14:08:05 +08:00
Alex Lam S.L
07e4b64f3a
fix AST_Scope.clone() (#2803) 
fixes #2799
 2018-01-17 21:33:13 +08:00
Alex Lam S.L
d3ce2bc9e7
suppress unsafe_proto for LHS expressions (#2804) 2018-01-17 20:41:51 +08:00
Alex Lam S.L
cff3bf4914
configure rename with CLI (#2802) 2018-01-17 15:12:22 +08:00
Alex Lam S.L
79cfac77bd
extend join_vars & sequences (#2798) 2018-01-17 13:58:27 +08:00
Alex Lam S.L
224c14d49d
improve mocha tests (#2797) 
- workaround sporadic delays from Travis CI
 2018-01-16 17:51:25 +08:00
Alex Lam S.L
7857354d85
improve test/travis-ufuzz.js (#2795) 
- print usage
- support concurrent jobs
- improve instance utilisation
- resume after V8 self-destruct
 2018-01-16 17:33:21 +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
ec7cd1dcf7
handle VM failure gracefully (#2791) 2018-01-15 23:41:39 +08:00
Alex Lam S.L
7def684730
improve test/travis-ufuzz.js (#2789) 
- wait for instance to boot
- run on forked repositories
- workaround `request_limit_reached`
 2018-01-15 19:18:21 +08:00
Alex Lam S.L
10f961c27b
enhance collapse_vars (#2788) 2018-01-15 18:47:23 +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
f96929c031
improve test/travis-ufuzz.js (#2786) 
- use more RAM
- show progress in console
- report failure as job status
 2018-01-15 15:08:35 +08:00
Alex Lam S.L
2b6657e967 run test/ufuzz.js when Travis CI is idle (#2784) 2018-01-15 08:52:11 +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
09269be974
enhance conditionals (#2758) 
`x ? y || z : z` --> `x && y || z`
 2018-01-10 16:59:57 +08:00
Alex Lam S.L
bf832cde16
improve synergy between compress and rename (#2755) 2018-01-09 17:55:41 +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
2e22d38a02
improve rename reproducibility (#2754) 
fixes #2752
 2018-01-09 13:53:05 +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
9809567dfc
improve process.exit() workaround (#2741) 
- use public API
- fix issue with Node.js 0.10 on WIndows
 2018-01-07 17:53:50 +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
659c8a7632
handle trailing line comments correctly (#2736) 
fixes #2734
 2018-01-06 21:05:21 +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
kzc
9b1bc6c014 ufuzz: add strings "a", "b", "c" to VALUES (#2732) 2018-01-06 05:54:53 +08:00
Alex Lam S.L
9f23185f2b
fix corner case with arguments as function name (#2729) 
fixes #2728
 2018-01-05 22:21:18 +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
afbcebddf6
fix mangle name collision across files (#2722) 2018-01-05 05:08:09 +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
6f3f21233f
reminify tests upon expect_stdout (#2716) 2018-01-04 20:13:05 +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
446fb0198b
extend __PURE__ to AST_New (#2706) 
fixes #2705
 2018-01-03 04:48:07 +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
b95e3338d9
fix pure_getters on AST_Binary (#2681) 
fixes #2678
 2017-12-28 17:01:01 +08:00
Alex Lam S.L
e40a0ee9c6
improve assignment variations (#2671) 2017-12-28 15:36:55 +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
0fe259e9c5
parse LF & comment correctly (#2653) 
fixes #2652
 2017-12-26 01:38:01 +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
edb4e3bd52
make comments output more robust (#2633) 
- improve handling of comments right after `return`
- retain comments after `OutputStream`
- preserve trailing comments
- fix handling of new line before comments
- handle comments around parentheses

fixes #88
fixes #112
fixes #218
fixes #372
fixes #2629
 2017-12-22 04:59:54 +08:00
Alex Lam S.L
4113609dd4
extend test/ufuzz.js to inline & reduce_funcs (#2620) 
- forward call `fN()`
- allow forward call functions to be single-use
- avoid generating `AST_Defun` within blocks
 2017-12-20 23:52:18 +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
032f096b7f
add test for #2613 (#2618) 2017-12-19 05:22:05 +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
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
kzc
d18979bb23 improve dead_code tests (#2589) 
for #2588
 2017-12-14 12:12:06 +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
ddf96cfda2
avoid Function.prototype pollution by test/sandbox.js (#2581) 2017-12-12 05:02:01 +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
93f3b2b114
escape consecutive unpaired surrogates (#2576) 
fixes #2569
 2017-12-11 01:15:44 +08:00
Alex Lam S.L
bf000beae7
rename tests (#2575) 2017-12-11 00:24:54 +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
85c56adbd1
more tests for #2535 (#2551) 2017-12-02 02:26:56 +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
c58d3936a3
fix corner case in call binding (#2541) 2017-12-01 03:18:20 +08:00
Alex Lam S.L
18302bf8e9
backport test from #2526 (#2534) 2017-11-29 13:32:00 +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
8987780db6
eliminate invalid state caching in collapse_vars (#2502) 
fixes #2497
 2017-11-24 04:12:37 +08:00
Alex Lam S.L
30cfea2e7a
fix rename (#2501) 
- suppress spurious `rename` from `commander`
- handle `AST_SymbolCatch` correctly
 2017-11-24 03:05:43 +08:00
Alex Lam S.L
f4e2fb9864
expand symbol space to improve compression (#2460) 
- give globally distinct names to distinct variables
- improve ability to compress cross-scoped
- introduce `options.rename` to `minify()`
- default `true` if both `compress` & `mangle`
 2017-11-19 19:29:51 +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
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
25a18883f5
tweak #2424 (#2432) 2017-11-05 12:49:14 +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
71e61153b1
improve variations on call arguments for ufuzz (#2424) 2017-11-04 16:29:42 +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
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
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
eba0f93bc0 more tests for #2351 (#2357) 2017-10-12 02:58:25 +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
c615a1e80a fix gzip stream in test/benchmark.js (#2228) 2017-07-12 02:55:57 +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
4956ad311b benchmark gzipped output (#2220) 2017-07-09 01:44:59 +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
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
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
285401ced8 more tests for #2158 (#2160) 2017-06-25 14:21:48 +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
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
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
43697958f3 avoid intermittent test time-out failures (#2100) 2017-06-15 04:47:57 +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
0a1e523cd5 fix parsing of expect_stdout (#2096) 
fixes #2095
 2017-06-15 01:00:03 +08:00
Alex Lam S.L
41beae4dd7 cache web assets between CI runs (#2089) 
- skip `test/jetstream.js` for `node@0.12`
 2017-06-14 11:53:10 +08:00
Ziad El Khoury Hanna
82db9188ac fix CLI parsing of --source-map content (#2088) 
fixes #2082
 2017-06-13 16:30:46 +08:00
Alex Lam S.L
3dc9e140e4 add Node.js 8 to Travis CI (#2086) 
- explicitly terminate `test/jetstream.js` upon completion
- log verbose output from `test/benchmark.js` & `test/jetstream.js`
- remove obsolete workaround for Travis CI
 2017-06-13 06:21:16 +08:00
Alex Lam S.L
fed0096556 allow expect_stdout to specify Error (#2087) 2017-06-13 04:57:26 +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
5ef7cb372a suppress false positives for-in loops (#2080) 
fixes #2079
 2017-06-10 13:55:17 +08:00
Alex Lam S.L
4ad7b1dae4 fix portability of sandbox.run_code() on Node.js 0.1x (#2078) 2017-06-10 01:08:58 +08:00
Alex Lam S.L
9186859cb7 fix non-string parameters (#2076) 
`Stream.write()` is not as versatile as `console.log()`
 2017-06-10 00:11:40 +08:00
Alex Lam S.L
47c0713747 report test/ufuzz.js failures in process.stderr (#2074) 2017-06-09 15:56:28 +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
f2af093402 fix CLI output corruption (#2061) 
Using `console.error()` & `console.log()` result in inconsistent formatting across Node.js versions.

Avoid this issue by directly writing to `process.stderr` & `process.stdout` instead.

Miscellaneous
- prettify invalid option listing
 2017-06-07 04:25:32 +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
b0eab71470 implement test/jetstream.js --debug (#2058) 2017-06-06 19:28:12 +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
84634da4b5 add tests for AST_SymbolAccessor (#2049) 2017-06-03 16:08:10 +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
fec14379f6 improve CLI usability (#2016) 
Report supported options upon invalid option syntax.

fixes #1883
 2017-05-28 04:09:40 +08:00
Alex Lam S.L
79131cd647 extend node_version range on applicable tests (#2015) 2017-05-27 22:18:28 +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
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
efcf167e5e make expect_stdout node version specific (#1963) 
... via semver string on `node_version` label.
 2017-05-18 11:28:35 +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
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
Alex Lam S.L
e005099fb1 fix & improve coverage of estree (#1935) 
- fix `estree` conversion of getter/setter
- fix non-directive literal in `to_mozilla_ast()`
- revamp `test/mozilla-ast.js`
  - reuse `test/ufuzz.js` for code generation
  - use `acorn.parse()` for creating `estree`
- extend `test/ufuzz.js` for `acorn` workaround
  - catch variable redefinition
  - non-trivial literal as directive
  - adjust options for tolerance

Miscellaneous
- optional semi-colon when parsing directives

fixes #1914
closes #1915
 2017-05-15 02:37:53 +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
Alex Lam S.L
c391576d52 remove support for const (#1910) 
As this is not part of ES5.
 2017-05-12 14:57:41 +08:00
Alex Lam S.L
ac73c5d421 avoid arguments and eval in reduce_vars (#1924) 
fixes #1922
 2017-05-12 12:34:55 +08:00
Alex Lam S.L
1d407e761e fix invalid transform on const (#1919) 
- preserve (re)assignment to `const` for runtime error
- suppress `cascade` on `const`, as runtime behaviour is ill-defined
 2017-05-12 04:51:44 +08:00
Alex Lam S.L
41996be86f extend test timeout 
Travis has gone a lot slower recently, and most test failures are due to time-out on this particular test.
 2017-05-10 02:43:12 +08:00
Alex Lam S.L
c14e280585 print error stack in CLI (#1890) 2017-05-09 16:36:44 +08:00
Alex Lam S.L
8c7c107765 update minify() usage in test/ufuzz.js (#1888) 
fixes #1887
 2017-05-09 15:58:46 +08:00
Alex Lam S.L
a3b2eb75bd return Error from minify() (#1880) 
Have `minify()` return `Error` in `result.error` rather than throwing it.
 2017-05-08 07:05:19 +08:00
Alex Lam S.L
da295de82b support dumping AST (#1879) 
Re-order `AST_Binary` properties to make dump more readable.

closes #769
 2017-05-08 06:23:01 +08:00
Alex Lam S.L
4f8ca4626e deprecate low level API (#1877) 
fixes #1872
 2017-05-08 03:24:42 +08:00
Alex Lam S.L
98cf95e5b5 fix test for #1865 (#1873) 2017-05-07 02:56:02 +08:00
Alex Lam S.L
2c7ee956fd fix unsafe on evaluate of reduce_vars (#1870) 
Determine if variables with non-constant values can escape and be modified.

fixes #1865
 2017-05-06 23:18:55 +08:00
Alex Lam S.L
dee5a27516 enhance collapse_vars (#1862) 
- extend expression types
  - `a++`
  - `a=x;`
- extend scan range
  - `for(init;;);`
  - `switch(expr){case expr:}`
  - `a = x; a = a || y;`
- terminate upon `debugger;`

closes #1821
fixes #27
fixes #315
fixes #1858
 2017-05-06 16:15:43 +08:00
Alex Lam S.L
bffdc8dca8 update test/benchmark.js resources (#1864) 2017-05-02 19:48:12 +08:00
kzc
ea9289771b improve literal return optimization (#1860) 2017-05-02 00:10:11 +08:00
Alex Lam S.L
2cb55b2ad0 enforce toplevel on other compress options (#1855) 
Respect "funcs" and "vars" properly.

fixes #1850
 2017-04-30 22:52:36 +08:00
Alex Lam S.L
76d19b60ad fix fuzzer on this (#1842) 
- forbid redeclaration of `this`
- suppress probability for `this` within nested functions
 2017-04-24 03:15:03 +08:00
Alex Lam S.L
9e62628171 fix unused on for-in statements (#1843) 
Only need to avoid `var` within the initialisation block.

fixes #1841
 2017-04-24 03:14:01 +08:00
Alex Lam S.L
9bf72cf758 improve parser under "use strict" (#1836) 
- `const` without value
- `delete` of expression
- redefining `arguments` or `eval`

extend `test/ufuzz.js`
- optionally generate "use strict"
- improve handling of test cases with syntax errors
- group IIFE generation
- generate bare anonymous functions
- workaround `console.log()` for `new function()`
- generate expressions with `this`


fixes #1810
 2017-04-23 20:05:22 +08:00
Alex Lam S.L
45ce369480 fix AST_For.init patch-up in drop_unused() (#1839) 
fixes #1838
 2017-04-23 01:51:56 +08:00
Alex Lam S.L
ca32a09032 fix label-related bugs (#1835) 
- deep cloning of `AST_LabeledStatement`
- `L:do{...}while(false)`
- empty statement with label within block

extend `test/ufuzz.js`
- generate labels for blocks & loops
- generate for-in statements
- skip suspicious option search if `minify()` errs


fixes #1833
 2017-04-22 22:15:04 +08:00
Alex Lam S.L
f05d4f7af3 improve unused (#1832) 
- extract leading value with side-effects out of `var` statement
- reduce scanning of `AST_Definitions` from 3 passes to just once
 2017-04-20 13:06:14 +08:00
Alex Lam S.L
88e7a542cd fix unused on labeled for-loop (#1831) 
fixes #1830
 2017-04-20 04:18:38 +08:00
Alex Lam S.L
4dcff038cb improve collapse_vars on AST_Var (#1828) 
Perform the same cascaded scanning within `var` statement as we do on array of statements.
 2017-04-19 04:49:09 +08:00
Alex Lam S.L
b4b9305db0 fix parser bugs & CLI reporting (#1827) 
fixes #1825
 2017-04-19 04:27:13 +08:00
Alex Lam S.L
28cfb65c47 extend cascade into a.b (#1829) 
fixes #27
 2017-04-19 04:17:15 +08:00
Alex Lam S.L
0f4f01b66c clean up collapse_vars (#1826) 
- remove overlap in functionality of singular, consecutive reference of constant value
- remove workarounds for previous bugs in `lib/scope.js`
- distribute recursive `collapse_single_use_vars()` calls to their respective `OPT(AST_Node)`
- enable collapsing of variables within a single `AST_Definitions`
 2017-04-18 21:45:34 +08:00
Alex Lam S.L
5d9f1da3ab support safe reassignments in reduce_vars (#1823) 
`var a=1;a=2;x(a)` => `x(2)`

fix pre-existing issues
- reference counting on assignment
- walking of anonymous functions
- chained assignment
 2017-04-18 13:38:42 +08:00
Alex Lam S.L
d1aa09c5c7 fix reduce_vars on conditionals (#1822) 2017-04-18 01:44:23 +08:00
Alex Lam S.L
6d5f341999 fix reduce_vars on boolean binary expressions (#1819) 
Side effects of `&&` and `||` have not mattered until #1814, which takes assignment expressions into account.
 2017-04-17 17:24:29 +08:00
Alex Lam S.L
4ffb6fce76 compress duplicated variable definitions (#1817) 
These are surprisingly common, as people reuse the same variable name within loops or switch branches.
 2017-04-17 17:11:29 +08:00
Alex Lam S.L
71a8d0d236 fix reduce_vars within try-block (#1818) 
Possible partial execution due to exceptions.
 2017-04-17 14:03:29 +08:00
Alex Lam S.L
1a498db2d3 enhance reduce_vars (#1814) 
- allow immediate assignment after declaration of variable
- relax modification rule for immutable value
- fix order of visit for TreeWalker
- remove extraneous code
 2017-04-17 01:36:50 +08:00
Alex Lam S.L
44dfa5a318 fix variable substitution (#1816) 
- let `collapse_vars` take care of value containing any symbols
- improve overhead accounting
 2017-04-16 17:25:39 +08:00
Alex Lam S.L
ec443e422c unify CLI & API under minify() (#1811) 
- rename `screw_ie8` to `ie8`
- rename `mangle.except` to `mangle.reserved`
- rename `mangle.properties.ignore_quoted` to `mangle.properties.keep_quoted` 
- compact `sourceMap` options
- more stringent verification on input `options`
- toplevel shorthands
  - `ie8`
  - `keep_fnames`
  - `toplevel`
  - `warnings`
- support arrays and unquoted string values on CLI
- drop `fromString` from `minify()`
  - `minify()` no longer handles any `fs` operations
- unify order of operations for `mangle_properties()` on CLI & API
  - `bin/uglifyjs` used to `mangle_properties()` before even `Compressor`
  - `minify()` used to `mangle_properties()` after `Compressor` but before `mangle_names()`
  - both will now do `Compressor`, `mangle_names()` then `mangle_properties()`
- `options.parse` / `--parse` for parser options beyond `bare_returns`
- add `mangle.properties.builtins` to disable built-in reserved list
  - disable with `--mangle-props builtins` on CLI
- `warnings` now off by default
- add `--warn` and `--verbose` on CLI
- drop `--enclose`
- drop `--export-all`
- drop `--reserved-file`
  - use `--mangle reserved` instead
- drop `--reserve-domprops`
  - enabled by default, disable with `--mangle-props domprops`
- drop `--prefix`
  - use `--source-map base` instead
- drop `--lint`
- remove `bin/extract-props.js`
- limit exposure of internal APIs
- update documentations

closes #96
closes #102
closes #136
closes #166
closes #243
closes #254
closes #261
closes #311
closes #700
closes #748
closes #912
closes #1072
closes #1366
fixes #101
fixes #123
fixes #124
fixes #263
fixes #379
fixes #419
fixes #423
fixes #461
fixes #465
fixes #576
fixes #737
fixes #772
fixes #958
fixes #1036
fixes #1142
fixes #1175
fixes #1220
fixes #1223
fixes #1280
fixes #1359
fixes #1368
 2017-04-15 23:50:50 +08:00
Alex Lam S.L
32deb365d5 drop angular (#1812) 
Remove support for `@ngInject` as there are proper alternatives anyway.
 2017-04-15 05:52:29 +08:00
Alex Lam S.L
2244743545 convert AST_Seq from binary tree to array (#1460) 
- rename `AST_Seq` to `AST_Sequence`
- raise default sequences_limit from 200 to 800
 2017-04-12 21:56:27 +08:00
Alex Lam S.L
d6fbc365e2 fix LHS cases for NaN & friends (#1804) 
`Infinity = beyond` should not become `1/0 = beyond`
 2017-04-09 03:18:14 +08:00
Alex Lam S.L
9a978843f5 enhance test/ufuzz.js (#1803) 
- `-E` to report test cases with runtime errors
- favor returning expressions rather than empty return
- emit a newline upon fuzzer completion to not erase the iteration count

closes #1800
 2017-04-09 01:36:38 +08:00
Alex Lam S.L
0479ff0c54 fix a couple of bugs in global_defs (#1802) 
- `optimize()` substituted expression
- compute nested property string correctly

fixes #1801

Miscellaneous
- reset optimisation flags on all node types
 2017-04-08 16:46:25 +08:00
Alex Lam S.L
cf72fe552f fix delete corner cases (#1799) 
- assignment
- boolean
- conditional
- sequence
 2017-04-08 14:25:28 +08:00
Alex Lam S.L
a1532eb076 extend ufuzz generator (#1783) 
- property access
- property assignment
- allow bare expression within try-block
- normalise `Error` in `console.log()`
- generate more unary expressions
- add parenthesis to enforce precedence
- adjust variable reuse/creation
- add parameters to function declaration & expression
- add return expression
- add trivial arguments to function call
 2017-04-07 18:47:30 +08:00
Alex Lam S.L
c2a1bceb77 fix pure_getters for chained property access (#1798) 2017-04-07 17:06:01 +08:00
Alex Lam S.L
e3c9c22c75 fix corner cases with delete (#1796) 
`delete Infinity` returns `false` where as `delete (1/0)` returns `true`
 2017-04-07 15:39:59 +08:00
Alex Lam S.L
0f4cd73dcc introduce "strict" to pure_getters (#1795) 2017-04-07 13:31:58 +08:00
Alex Lam S.L
281e882d27 fix reduce_vars on catch variable (#1794) 
Improved catch handling in `figure_out_scope()` means special case treatment of IE8 is no longer valid in `reset_opt_flags()`.

Also fixed recursive assignment in variable definition.
 2017-04-07 12:32:56 +08:00
Alex Lam S.L
cc6aa3e5ac fix incorrect context in variable substitution (#1791) 
`AST_Node.optimize()` is context-aware, so don't cache its results to be used elsewhere.

Also fixed a few cases of AST corruption and beef up safety of `pure_getters`.
 2017-04-07 03:42:17 +08:00
Alex Lam S.L
06cdb74279 improve pure_getters (#1786) 
- property access to `null` & `undefined` always has side effects
- utilise `reduce_vars` to determine safe property access
- may-be cases treated as side effects unless `unsafe`
 2017-04-06 11:18:59 +08:00
Alex Lam S.L
ff289b90a9 implement delayed resolution for reduce_vars (#1788) 
Although it would be nice to enforce `AST_Node` cloning during transformation, that ship has sailed a long time ago.

We now get the assigned value when resolving `AST_SymbolRef` instead of `reset_opt_flags()`, which has the added advantage of improved compressor efficiency.

fixes #1787
 2017-04-05 21:06:42 +08:00
Alex Lam S.L
9b6bc67c33 optimise do{...}while(false) (#1785) 
- better heuristics to avoid issues like #1532
- fix `TreeWalker.loopcontrol_target()`
  - `continue` cannot refer to `switch` blocks
 2017-04-04 23:48:22 +08:00
Alex Lam S.L
4b90dc1fdb remove --mangle-props from fuzzing (#1777) 
The inherently unsafe nature makes this feature unsuitable to be tested this way.

fixes #1774
 2017-04-04 16:24:16 +08:00
Alex Lam S.L
951770fc68 exclude mangling of special property names (#1779) 
- `null`
- `true`
- `false`
- numeric literals
 2017-04-04 03:50:19 +08:00
Alex Lam S.L
48b3fe9952 fix mangleProperties on identifiers (#1776) 
- fix handling of "-Infinity"
- add test case for "-0"

reverts #1481
 2017-04-03 23:17:47 +08:00
Alex Lam S.L
a400741868 workaround Node.js bugs (#1775) 
Wrap test code in IIFE before passing to `vm`

fixes #1768
fixes #1771
 2017-04-03 18:56:11 +08:00
Alex Lam S.L
59a4e56bc8 fix mangleProperties of undefined & Infinity (#1772) 
`NaN` already works by the happy accident of `Number.NaN`

fixes #1770
 2017-04-03 12:31:05 +08:00
Alex Lam S.L
1f1fccc45d extend test/ufuzz.js (#1769) 
New expressions:
- property access
- array literal
- object literal

Miscellaneous:
- reduce execution timeout
- test `toplevel` and `mangleProperties`
 2017-04-03 04:00:33 +08:00
Alex Lam S.L
9469c03ac9 fix corner case in switch (#1765) 2017-04-02 17:07:20 +08:00
Alex Lam S.L
d57527697f avoid confusion of NaN & Infinity with catch symbol of the same name (#1763) 
fixes #1760
fixes #1761
 2017-04-02 16:14:09 +08:00