UglifyJS

Author	SHA1	Message	Date
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_Function`s (#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
Alex Lam S.L	f7ca4f2297	fix corner cases in switch and undefined (#1762 ) - fix side effects in switch condition for singular blocks - fix `undefined` confusion with local variable - gate `OPT(AST_Switch)` with `switches` fixes #1758 fixes #1759	2017-04-02 14:52:25 +08:00
Alex Lam S.L	c076e7b60d	speed up fuzzer code generation (#1757 ) - only output one top-level function or statement block - reduce `rng()` granularity from 2^32 to 65536 - fix overflow in `rng()` - track `canThrow` during `typeof` creation	2017-04-02 05:11:29 +08:00
Alex Lam S.L	4a55bb0be5	minor tweaks to `test/ufuzz.js` (#1756 ) - count iterations from `1` instead of `0` - remove `unsafe` from default set of `minify()` tests - improve usability of help	2017-04-02 03:17:01 +08:00
Alex Lam S.L	28ecea50a6	upgrade fuzzer (#1754 ) - configurable set of `minify()` options - test and report suspects upon failure - continue after failure if infinite iterations is specified	2017-04-02 02:10:50 +08:00
kzc	9a311705f5	fuzz regexp literals, more constant numbers, typeof expression (#1755 )	2017-04-02 02:08:46 +08:00
Alex Lam S.L	ee3fe0f4cd	fix switch branch elimination (#1752 ) Merge unreachable case body with previous fallthrough case fixes #1750	2017-04-01 17:19:57 +08:00
Alex Lam S.L	87f6e1b091	minor tweaks to fuzzer (#1751 ) - remove `let` as variable name - employ `crypto.randomBytes()`	2017-04-01 17:09:52 +08:00
Alex Lam S.L	c934fc8142	implement `test/sandbox.js` (#1749 ) - `test/run-tests.js` and `test/ufuzz.js` now shares the same `run_code()` and `same_stdout()` - re-enable fuzzer to generate top-level `NaN`, `Infinity` & `undefined` - attempt to show beautified output only when `run_code()` output is preserved	2017-04-01 05:47:11 +08:00
Alex Lam S.L	257ddc3bdb	improve compression of undefined, NaN & Infinitiy (#1748 ) - migrate transformation logic from `OutputStream` to `Compressor` - always turn `undefined` into `void 0` (unless `unsafe`) - always keep `NaN` except when avoiding local variable redefinition - introduce `keep_infinity` to suppress `1/0` transform, except when avoiding local variable redefinition supersedes #1723 fixes #1730	2017-04-01 03:02:14 +08:00
Alex Lam S.L	1ddc05725d	combine rules for binary boolean operations (#1744 )	2017-03-31 18:47:44 +08:00
Peter van der Zee	e6b76a4879	Massive extension of the fuzzer (#1697 ) Fix bug where a `throw` was generated without expression Reenable try/catch/finally and fix them up Skip serialization errors Allow function decl in other funcs but not in blocks etc Rename function to be more appropriate Fix global functions not getting certain names Make the canaries more likely to appear as expressions Add a silly rounding edge case Add a new canary, `c`, which should only ever be incremented Refactoring Fix (another) iife not actually being invoked When a statement hits recursion max return an expression instead of `;` When a expression hits recursion max also inc `c` Generate global code as well as function code Also fixes some argument juggling related bugs. No longer reduces the recursion max when generating sub functions. Generates a function arg. Add used names to var name pool while in that scope This is a little wonky, possibly a hack, but since it's synchronous code I think it's alright to do this. The alternative is to slice the varnames array and juggle them through almost all the generator functions and there are various reasons why this patch is a better alternative. Minify generated code, not beautified code. Prevents beautifier bias. Prevent unnecessary duplication Remove serialization protection because I think it got handled elsewhere Abstract toplevel code generation Add example line of running test case Add poor man options parser, and some options Reindent to 4 spaces Lower chance of `default` generation Comment example of testing a case and output improvement Enable `default` clause appearing at any clause index Removing some training wheels; dont add parens where we dont absolutely need them Support `-s1` and `-s2` to force specific statements being generated at that recursion level Add round number to output when failing. For stats and fun and profit. Solidify statement depth counting. The argument juggling is real. Renamed option to something long. -scf was ugly and probably confusing. Fix missing arguments causing `canThrow` to be truthy, generating crashing code Generate more binary nested expressions Add black and white list cli options for statement generation Allows you to explicitly require or forbid certain statements from/to being made. ``` node test/ufuzz.js --without-stmt switch,try -t 5 -r 5 -V ``` ``` node test/ufuzz.js --only-stmt ifelse,expr -t 5 -r 5 -V ``` Similar granularity for expression may be added later. There can be no comma between names; it just does a split on that arg. Trim down the binary expression generator Prevent scoping issues in nodejs by preventing certain names in global space Oh this list was incomplete? Allow bin-expr to generate assignments too. More vigilant with storing and reusing vars. Add more global builtin names Update wrapper code Also patch Function valueOf	2017-03-31 17:23:50 +08:00
Alex Lam S.L	11e9bdc427	fix missing preamble when shebang is absent (#1742 )	2017-03-31 15:26:57 +08:00
Alex Lam S.L	c595b84032	fix catch symbol mangling (#1734 ) Only need to look up the immediate non-block/catch scope for the same-name special case. fixes #1733	2017-03-31 02:57:47 +08:00
Alex Lam S.L	7cb1adf455	remove paranthesis for `-(x*y)` (#1732 )	2017-03-30 16:09:00 +08:00
Alex Lam S.L	7bea38a05d	optimize try-catch-finally (#1731 ) - eliminate empty blocks - flatten out if try-block does not throw	2017-03-30 12:16:58 +08:00
Alex Lam S.L	0f910ee25c	improve tests from #1726 (#1729 )	2017-03-30 00:13:46 +08:00
Alex Lam S.L	2e41cd6394	fix missing parentheses around NaN/Infinity shorthands (#1726 ) fixes #1724 fixes #1725	2017-03-29 20:53:03 +08:00
Alex Lam S.L	09f77c7d4d	output optimal representations of NaN & Infinity (#1723 ) - move these optimisations out from `Compressor` to `OutputStream` - fixes behaviour inconsistency when running uglified code from global or module levels due to redefinition	2017-03-29 18:31:55 +08:00
Alex Lam S.L	fef0bf9ee0	improve beautified output of switch blocks (#1721 )	2017-03-29 04:40:05 +08:00
Alex Lam S.L	ec7f37f314	remove UGLIFY_DEBUG (#1720 ) fixes #1719	2017-03-29 01:27:24 +08:00
Alex Lam S.L	eb48a035e7	fix corner case in `unused` (#1718 ) When fixing catch-related issue in #1715, it tries to optimise for duplicate definitions but did not take anonymous functions into account. Remove such optimisation for now and we can cover this as a more general rule later.	2017-03-29 01:00:21 +08:00
Alex Lam S.L	c909ffb715	fix `unused` on var of the same name within catch (#1716 ) fixes #1715	2017-03-28 21:25:49 +08:00
Alex Lam S.L	f71f4905b0	fix `is_number()` on `+=` (#1714 ) fixes #1710	2017-03-28 17:08:16 +08:00
Alex Lam S.L	fb177a6312	drop anonymous function name when overshadowed by other declarations (#1712 ) fixes #1709	2017-03-28 17:02:20 +08:00
Alex Lam S.L	65da9acce6	handle var within catch of the same name (#1711 ) The following code prints `1`: var a = 1; !function(){ a = 4; try{ throw 2; } catch (a) { var a = 3; } }(); console.log(a); fixes #1708	2017-03-28 16:42:39 +08:00
Alex Lam S.L	67d0237f73	fix tail trimming of switch blocks (#1707 ) now guarded under `dead_code` fixes #1705	2017-03-28 03:59:13 +08:00
Alex Lam S.L	984a21704e	fix mangle for variable declared within catch block (#1706 ) fixes #1704	2017-03-28 03:26:35 +08:00
Alex Lam S.L	aa3f647656	ufuzz: workaround for Function.toString() v2 (#1700 )	2017-03-27 21:49:08 +08:00
Alex Lam S.L	c526da59a1	`has_side_effects()` should take `AST_Switch.expression` into account (#1699 ) fixes #1698	2017-03-27 18:09:35 +08:00
Alex Lam S.L	581630e0a7	fix typeof side effects (#1696 ) `statement_to_expression()` drops `typeof` even if it operates on undeclared variables. Since we now have `drop_side_effect_free()`, replace and remove this deprecated functionality.	2017-03-27 04:37:42 +08:00
Alex Lam S.L	f5952933a0	preserve side effects in switch expression (#1694 ) fixes #1690	2017-03-27 02:32:46 +08:00
Alex Lam S.L	f001e4cb9d	fix `cascade` on anonymous function reference (#1693 ) Unlike normal variables and even function definitions, these cannot be reassigned, even though assignment expressions would "leak" the assigned value as normal.	2017-03-27 01:58:21 +08:00
Alex Lam S.L	57ce5bd9e0	handle overlapped variable definitions (#1691 ) Process variable definitions with or without assigned values against: - `arguments` - named function arguments - multiple definitions within same scope Essentially demote variable declarations with no value assignments. Also fixed invalid use of `AST_VarDef` over `arguments` - should use a member of `AST_SymbolDeclaration` instead.	2017-03-27 01:30:21 +08:00
Alex Lam S.L	861a79ac9f	fix `delete` related issues in `collapse_vars` and `reduce_vars` (#1689 )	2017-03-26 19:14:30 +08:00
Alex Lam S.L	00996afd2c	ufuzz: workaround function name and toString() (#1688 ) fixes #1686	2017-03-26 18:18:44 +08:00
Alex Lam S.L	e76fb354eb	fix `cascade` on `delete` operator (#1687 ) Conditions including strict mode would make `delete` return `true` or `false`, and are too complex to be evaluated by the compressor. Suppress assignment folding into said operator. fixes #1685	2017-03-26 18:08:44 +08:00
Alex Lam S.L	3276740779	fallthrough should not execute case expression (#1683 ) - de-duplicate trailing cases only, avoid all potential side-effects - enable switch statement fuzzing fixes #1680	2017-03-26 16:52:38 +08:00
kzc	5509e51098	optimize conditional when condition symbol matches consequent (#1684 )	2017-03-26 16:36:33 +08:00
Alex Lam S.L	94f84727ce	suppress switch branch de-duplication upon side effects (#1682 ) fixes #1679	2017-03-26 13:32:43 +08:00
Alex Lam S.L	8a4f86528f	fix side-effects detection on switch statements (#1678 ) extension of #1675	2017-03-26 12:05:44 +08:00
Peter van der Zee	adb0e882e9	Improve fuzzer. :) (#1665 ) @qfox Put value constants in a global constant 74c0fb9 @qfox And the other string based values as well a5033c5 @qfox Be more strict about parameters, allow max to be optional 9c7ce70 @qfox Support a `V` (capital) flag to only log out at intervals 2d822c7 @qfox Fewer magic variables a6a9a7c @qfox Fix decrement such that a function is created when n=1 7e4b017 @qfox Add more values 64e596e @qfox Make `b` appear more often d33191a @qfox Add functions that contain (only..) functions 29a86e3 @qfox Allow the block statement to contain multiple statements 7570484 @qfox Make the interval count a constant d587ad8 @qfox Enable mangling, disable post-processing … 4dc8d35 @qfox Add more simple value that may trigger syntactic errors 8496d58 @qfox Add `else` to some `if` statements a4aed65 @qfox Move iife to expr generator, fix missing recursion arg e453159 @qfox Improve output on error where it wasnt printing the last code properly 4565a1a @qfox Add switch statement to generator ceafa76 @qfox Add var statement, support optional comma for expr generator b83921b @qfox Expression generator should use a simple value instead of `0` as recu… … 9d1a5c7 @qfox const -> var to keep things es5... 0143099 @qfox Add more simple values that may trigger edge cases 5e124f1 @qfox Add central name generator, take special care for global functions aeb7682 @qfox Add some `return` and function declaration cases to statement generator 6c9c3cc @qfox Exclude switches from generator for now 91124b2 Put value constants in a global constant And the other string based values as well Be more strict about parameters, allow max to be optional Support a `V` (capital) flag to only log out at intervals Fewer magic variables Fix decrement such that a function is created when n=1 Add more values Make `b` appear more often Add functions that contain (only..) functions Allow the block statement to contain multiple statements Make the interval count a constant Enable mangling, disable post-processing Mangling is kind of the whole point... Similarly, to beautify the minified code afterwards may supress bugs so it's probably best not to beautify the code prematurely. And there's no point anyways since you won't see it most of the time and only care about the main input anyways. Add more simple value that may trigger syntactic errors Add `else` to some `if` statements Move iife to expr generator, fix missing recursion arg Improve output on error where it wasnt printing the last code properly Add switch statement to generator Add var statement, support optional comma for expr generator Expression generator should use a simple value instead of `0` as recursion default const -> var to keep things es5... Add more simple values that may trigger edge cases Add central name generator, take special care for global functions Add some `return` and function declaration cases to statement generator Exclude switches from generator for now Enable switch generation because #1667 was merged Add typeof generator Add some elision tests Add a new edge case that returns an object explicitly Add all binary ops to try and cover more paths Forgot four binops and added `Math` to var name pool Harden the incremental pre/postfix tests Improve switch generator, allow `default` to appear at any clause index Add try/catch/finally generation Prevent function statements being generated Add edge case with decremental op and a group Disable switch generation until #1679 and #1680 are solved Only allow `default` clause as last clause for now Tentatively enable `throw`, `break` and `continue` statements when in valid contexts	2017-03-26 12:04:50 +08:00
Alex Lam S.L	f83d370f57	improve switch optimisations (#1677 ) - correctly determine reachability of (default) branches - gracefully handle multiple default branches - optimise branches with duplicate bodies fixes #376 fixes #441 fixes #1674	2017-03-26 05:15:46 +08:00
Alex Lam S.L	b19aa58cff	fix `has_side_effects()` (#1675 ) `AST_Try` is an `AST_Block`, so besides try block we also need to inspect catch and finally blocks for possible side effects. Also extend this functionality to handle `AST_If` and `AST_LabeledStatement` while we are at it. fixes #1673	2017-03-25 23:03:26 +08:00
Alex Lam S.L	0a65de89b9	fix `reduce_vars` on `AST_Switch` (#1671 ) Take conditional nature of switch branches into account. fixes #1670	2017-03-25 21:17:30 +08:00
Alex Lam S.L	6e86ee950d	fix typeof side-effects (#1669 ) `has_side_effects()` does not take `typeof`'s magical power of not tripping over undeclared variable into account. fixes #1668	2017-03-25 17:40:18 +08:00
Alex Lam S.L	8ca2401ebe	fix `dead_code` on `AST_Switch` (#1667 ) Need to call `extract_declarations_from_unreachable_code()`. fixes #1663	2017-03-25 16:21:42 +08:00
Alex Lam S.L	a30092e20f	fix invalid `AST_For.init` (#1657 ) Turns out the only place in `Compressor` which can generate invalid `AST_For.init` is within `drop_unused()`, so focus the fix-up efforts. supercedes #1652 fixes #1656	2017-03-25 03:18:36 +08:00
Alex Lam S.L	b1abe92e1a	introduce ufuzz.js (#1655 ) closes #1647	2017-03-25 01:46:12 +08:00
Alex Lam S.L	32283a0def	fix cascade of `evaluate` optimisation (#1654 ) Operator has changed, so break out from rest of the rules. fixes #1649	2017-03-24 22:09:19 +08:00
Alex Lam S.L	ac51d4c5a0	fix corner case in `AST_For.init` (#1652 ) Enforce `null` as value for empty initialisation blocks. fixes #1648	2017-03-24 19:31:17 +08:00
Alex Lam S.L	0432a7abb9	fix assignment extraction from conditional (#1651 ) fixes #1645 fixes #1646	2017-03-24 18:52:48 +08:00
Alex Lam S.L	f3a1694a41	fix assignment substitution in sequences (#1643 ) take side effects of binary boolean operations into account fixes #1639	2017-03-24 14:30:31 +08:00
Alex Lam S.L	2e0dc97003	improve error marker placement (#1644 ) For AST_UnaryPrefix, points to the operator rather than end of expression.	2017-03-24 14:28:40 +08:00
Alex Lam S.L	701035621d	fix expect_stdout (#1642 ) `compress()` may modify input ASTs add tests for #1627 & #1640	2017-03-24 13:19:50 +08:00
Alex Lam S.L	e918748d88	improve collapsible value detection (#1638 ) - #1634 bars variables with cross-scope references in between to collapse - but if assigned value is side-effect-free, no states can be modified, so it is safe to move	2017-03-24 02:55:32 +08:00
Alex Lam S.L	48ffbef51d	account for cross-scope modifications in `collapse_vars` (#1634 ) mostly done by @kzc fixes #1631	2017-03-23 07:17:34 +08:00
Alex Lam S.L	c0f3feae9f	introduce compressor.info() (#1633 ) report the following only when `options.warnings = "verbose"` - unused elements due to inlining - collpased variables	2017-03-23 06:49:49 +08:00
Alex Lam S.L	a00040dd93	fix a bug in simple_glob (#1632 ) - "?" should not match "/" - other minor clean-ups	2017-03-23 06:11:16 +08:00
Alex Lam S.L	ee95c1b38b	metadata cleanup (#1630 ) - mention performance anomaly in Node 7 and drop from CI - remove unused npm "scripts" - mark browserify dependency as optional - stop `test/mozilla-ast.js` from spamming console output in later versions of Node.js	2017-03-23 01:31:46 +08:00
Alex Lam S.L	4bceb85cbf	throw parse error on invalid assignments (#1627 ) fixes #1626	2017-03-21 14:11:32 +08:00
Alex Lam S.L	a3cc3a9b87	make `expect_stdout` work on Node.js 0.12 (#1623 ) That particular version of Node.js has messed up error messages, so provide a version-specific workaround. Also fixed an formatting issue which would cause `expect_stdout` to fail if error message contains excerpts of input. Apply `expect_stdout` to more applicable tests.	2017-03-19 12:00:32 +08:00
Alex Lam S.L	96f8befdd7	fix commit `88fb83a` (#1622 ) The following is wrong: `a == (b ? a : c)` => `b` Because: - `b` may not be boolean - `a` might have side effects - `a == a` is not always `true` (think `NaN`) - `a == c` is not always `false`	2017-03-19 11:59:42 +08:00
Alex Lam S.L	cd58635dcc	fix AST_Binary.lift_sequences() (#1621 ) Commit `eab99a1c` fails to account for side effects from compound assignments.	2017-03-19 03:04:22 +08:00
Alex Lam S.L	274331d0ea	transform String.charAt() to index access (#1620 ) Guarded by `unsafe` as `charAt()` can be overridden.	2017-03-19 02:17:15 +08:00
Alex Lam S.L	0489d6de64	handle runtime errors in `expect_stdout` (#1618 ) allow test to pass if both `input` and `expect` throws the same kind of error	2017-03-18 02:33:51 +08:00
Alex Lam S.L	fb092839c2	fix top-level directives in compress tests (#1615 ) `input` and `expect` are parsed as `AST_BlockStatement` which does not support `AST_Directive` by default. Emulate that by transforming preceding `AST_SimpleStatement`s of `AST_String` into `AST_Directive`.	2017-03-18 01:56:15 +08:00
Alex Lam S.L	ac40301813	fix chained evaluation (#1610 ) `reduce_vars` enables substitution of variables but did not clone the value's `AST_Node`. This confuses `collapse_vars` and result in invalid AST and subsequent crash. fixes #1609	2017-03-17 00:26:48 +08:00
Alex Lam S.L	3563d8c09e	extend `test/run-tests.js` to optionally execute uglified output (#1604 ) fixes #1588	2017-03-16 23:20:06 +08:00
Alex Lam S.L	5ae04b3545	make `collapse_vars` consistent with `toplevel` (#1608 ) fixes #1605	2017-03-16 13:22:26 +08:00
Alex Lam S.L	a80b228d8b	fix `hoist_vars` on `reduce_vars` (#1607 ) `hoist_vars` converts variable declarations into plain assignments, which then confuses `reduce_vars` fixes #1606	2017-03-16 12:03:30 +08:00
Alex Lam S.L	8223b2e0db	fix `AST_Node.optimize()` (#1602 ) Liberal use of `Compressor.transform()` and `AST_Node.optimize()` presents an issue for look-up operations like `TreeWalker.in_boolean_context()` and `TreeWalker.parent()`. This is an incremental fix such that `AST_Node.optimize()` would now contain the correct stack information when called correctly.	2017-03-15 18:44:13 +08:00
Alex Lam S.L	d9344f30b8	disallow parameter substitution for named IIFEs (#1596 ) Self-referenced function has non-fixed values assigned to its parameters. Let `unused` & `!keep_fnames` do the scanning, then apply `reduce_vars` only to unnamed functions. fixes #1595	2017-03-11 03:34:55 +08:00
Alex Lam S.L	be80f7e706	support multi-line string in tests (#1590 ) `expect_exact` sometimes have multiple lines and `\n` are hard to read. Use array of strings to emulate line breaks and improve readability.	2017-03-10 11:27:30 +08:00
Alex Lam S.L	cf45e2f79b	fixup for #1585 (#1589 ) As patched on `harmony`, `statement()` is the only user of `embed_tokens()` with a missing error branch. Updated test case and match up with `harmony` to facilitate future merging.	2017-03-10 10:49:41 +08:00
Alex Lam S.L	9e6b128374	fix catch variable reference in IE8 (#1587 ) `AST_Scope.def_variable()` will overwrite `AST_Symbol.thedef`, so save a copy before calling. fixes #1586	2017-03-10 03:15:21 +08:00
Michael Mior	93cdb194f4	Correctly raise a parse exception with a missing loop body (#1585 )	2017-03-10 03:08:43 +08:00
Alex Lam S.L	b633706ce4	fix & improve function argument compression (#1584 ) - one-use function call => IIFE should take `eval()` & `arguments` into account - if unused parameter cannot be eliminated, replace it with `0` fixes #1583	2017-03-09 19:11:05 +08:00
Alex Lam S.L	7e465d4a01	scan RHS of dropped assignments (#1581 ) - similar case as #1578 but against #1450 instead - fix `this` binding in #1450 as well closes #1580	2017-03-09 05:22:27 +08:00
Alex Lam S.L	711f88dcb4	scan assignment value in drop_unused() (#1578 ) those were not optimised for `unused` before, which made it necessary for `reduce_vars` to have separate steps for `keep_fnames` docs update by @kzc closes #1577	2017-03-08 18:37:32 +08:00
Alex Lam S.L	c7cdcf06a6	fix function name eliminiation (#1576 ) Function expression can be assigned to a variable and be given a name. Ensure function name is the reduced variable before clearing it out. fixes #1573 fixes #1575	2017-03-08 12:39:57 +08:00
Alex Lam S.L	3ee55748d4	only run benchmark & jetstream on CI (#1571 )	2017-03-08 06:00:51 +08:00
Alex Lam S.L	dedbeeff15	plan B for IE8 do-while semi-colon fix (#1572 ) - omitting trailing semi-colon in do-while breaks non-browser parser, e.g. uglify-js 1.x - trailing semi-colon only breaks IE8 if followed by `else` or `while` - always use braces in do-while body to workaround 2nd case with no size loss in compression fixes #1568	2017-03-08 05:07:05 +08:00
Alex Lam S.L	bd6dee52ab	fix return from recursive IIFE (#1570 ) `side-effects` did not account for IIFEs being able to reference itself thus making its return value potentially significant	2017-03-08 03:31:51 +08:00
Alex Lam S.L	65c848cc6f	include benchmark.js in test suite (#1564 ) - report file sizes and overall run time - exit with non-zero code upon error	2017-03-07 19:25:12 +08:00
Alex Lam S.L	8a8a94a596	fix deep cloning of labels (#1565 ) `AST_Label.references` get `.initialize()` to `[]` every time after `.clone()` So walk down the tree to pick up the cloned `AST_LoopControl` pieces and put it back together.	2017-03-07 18:38:27 +08:00
Alex Lam S.L	8153b7bd8a	transform function calls to IIFEs (#1560 ) - expose function body to call sites for potential optimisations - suppress substitution of variable used within `AST_Defun`	2017-03-07 15:37:52 +08:00
Alex Lam S.L	d787d70127	avoid substitution of global variables (#1557 ) - unless `toplevel` is enabled - global `const` works as before	2017-03-07 03:11:03 +08:00
kzc	3ac2421932	collapse_vars: do not replace a constant in loop condition or init (#1562 )	2017-03-07 01:42:33 +08:00
Alex Lam S.L	a9fc9ddc33	suppress semicolons after do/while (#1556 ) - unless both `beautify` & `screw-ie8` are enabled - deprecate workaround for if-do-while-else fixes #186	2017-03-06 17:31:35 +08:00
Alex Lam S.L	067e5a5762	fixup for #1553 (#1555 ) - `++a` is the one that is foldable - transform `a++` into `++a` for better optimisation	2017-03-05 17:15:37 +08:00
Alex Lam S.L	35a849dc48	collapse assignment with adjacent subsequent usage (#1553 ) - consolidate `cascade` optimisations - support ++/-- postfixes - remove redundant optimisation identified in #1460 fixes #368	2017-03-05 14:56:14 +08:00
Alex Lam S.L	b70591be1a	handle variable declaration within catch blocks (#1546 ) accounts for IE8- scoping	2017-03-05 13:13:44 +08:00
Alex Lam S.L	b33e7f88e6	improve `unsafe` on undefined (#1548 ) `unsafe` turns undefined keyword into a variable of the same name if found, but that interferes with other related optimisations. Keep track of such transformations to ensure zero information loss in the process.	2017-03-05 13:09:27 +08:00
Alex Lam S.L	1f0333e9f1	stay safe with constants in IE8- (#1547 ) - `undefined` etc. can be redefined at top-level for IE8-, so disable related optimisations - fixed `--support-ie8` catch mangle bug	2017-03-05 12:51:11 +08:00
Alex Lam S.L	eb98a7f2f3	fix handling of shebang and preamble (#1545 ) fixes #1332	2017-03-05 12:16:02 +08:00
Alex Lam S.L	78d1bb92d4	fix a corner case in #1530 (#1552 )	2017-03-05 12:12:59 +08:00
Alex Lam S.L	07accd2fbb	process code with implicit return statement (#1522 ) Bookmarklet for instance implicitedly assumes a "completion value" without using `return`. The `expression` option now supports such use cases. Optimisations on IIFEs also enhanced. fixes #354 fixes #543 fixes #625 fixes #628 fixes #640 closes #1293	2017-03-03 18:13:07 +08:00
Alex Lam S.L	18059cc94f	compress numerical expressions (#1513 ) safe operations - `a === b` => `a == b` - `a + -b` => `a - b` - `-a + b` => `b - a` - `a+ +b` => `+b+a` associative operations (bit-wise operations are safe, otherwise `unsafe_math`) - `a + (b + c)` => `(a + b) + c` - `(n + 2) + 3` => `5 + n` - `(2 * n) * 3` => `6 * n` - `(a \| 1) \| (2 \| d)` => `(3 \| a) \| b` fixes #412	2017-03-03 18:04:32 +08:00
Alex Lam S.L	17b81350d4	fix chained assignment with `unused` (#1540 ) When #1450 optimises `a=b=42`, it stops after the first variable even if both are unused. fixes #1539	2017-03-03 04:45:20 +08:00
kzc	4d63d4f5b3	collapse_vars should not replace constant in for-in init section (#1538 ) fixes #1537	2017-03-03 03:51:15 +08:00
Alex Lam S.L	70d72ad806	properly cover all cases of for-in loop variables (#1536 )	2017-03-03 02:39:57 +08:00
Alex Lam S.L	fe9227a41b	fix reference marking in for-in loops (#1535 ) fixes #1533	2017-03-03 00:56:06 +08:00
Alex Lam S.L	b49e142a26	disable do{...}while(false) optimisation (#1534 ) - fails to handle `break` in body fixes #1532	2017-03-03 00:54:41 +08:00
kzc	ee3b39b909	optimize trivial IIFEs returning constants (#1530 )	2017-03-02 15:11:40 +08:00
Alex Lam S.L	9699ffb1af	trim unused invocation parameters (#1526 )	2017-03-02 11:33:59 +08:00
Alex Lam S.L	fdc9b9413b	minor improvement to string optimisation (#1514 ) - "" + "a" => "a" - "" + a + "b" => a + "b" - "a" + "" => "a" (improving on #45)	2017-03-02 11:31:39 +08:00
Alex Lam S.L	7aa69117e1	fix corner cases in `reduce_vars` (#1524 ) Avoid variable substitution in the following cases: - use of variable before declaration - declaration within conditional code blocks - declaration within loop body fixes #1518 fixes #1525	2017-03-02 00:20:53 +08:00
Alex Lam S.L	f5cbe19b75	invert `reduce_vars` tracking flag (#1519 ) Modules like webpack and grunt-contrib-uglify still uses `ast.transform(compressor)` before `Compressor.compress(ast)` was introduced. Workaround this compatibility issue by deactivating `reduce_vars` in such case. Also fix use case with omitted `options` when calling `Compressor()`. fixes #1516	2017-03-01 04:12:10 +08:00
Alex Lam S.L	b34fa11a13	fix `evaluate` on object getter & setter (#1515 )	2017-03-01 02:03:47 +08:00
Alex Lam S.L	858e6c78a4	warn & drop `#__PURE__` iff IIFE is dropped (#1511 ) - consolidate `side-effects` optimisations - improve string `+` optimisation - enhance literal & `conditionals` optimisations	2017-02-28 02:25:44 +08:00
Alex Lam S.L	872270b149	improve error messages (#1506 ) - better inheritance of `Error` sub-classes - mark parse error against source in CLI closes #235 closes #348 closes #524 closes #1356 closes #1405	2017-02-27 03:40:54 +08:00
Alex Lam S.L	16cd5d57a5	consolidate `evaluate` & `reduce_vars` (#1505 ) - improve marking efficiency - apply smarter `const` replacement to `var` fixes #1501	2017-02-26 00:40:33 +08:00
Alex Lam S.L	cf0951f726	allow --in-source-map inline (#1490 ) - limited to one input file (or `stdin`) - only works with built-in parser fixes #520	2017-02-25 04:11:21 +08:00
alexlamsl	4e49302916	enable `collapse_vars` & `reduce_vars` by default - fix corner cases in `const` optimisation - deprecate `/@const/` fixes #1497 closes #1498	2017-02-24 01:46:57 +08:00
kzc	1e51586996	Support marking a call as pure A function call or IIFE with an immediately preceding comment containing `@__PURE__` or `#__PURE__` is deemed to be a side-effect-free pure function call and can potentially be dropped. Depends on `side_effects` option. `[#@]__PURE__` hint will be removed from comment when pure call is dropped. fixes #1261 closes #1448	2017-02-21 14:24:18 +08:00
Ondřej Španěl	d48a3080ac	Fix: AST_Accessor missing start / end tokens fixes #1492 closes #1493	2017-02-21 13:32:16 +08:00
alexlamsl	26fbeece1c	fix `pure_funcs` & improve `side_effects` - only drops side-effect-free arguments - drop side-effect-free parts with discarded value from `AST_Seq` & `AST_SimpleStatement` closes #1494	2017-02-21 13:31:59 +08:00
alexlamsl	8898b8a0fe	clean up `max_line_len` - never exceed specified limit - otherwise warning is shown - enabled only for final output closes #1496	2017-02-21 13:29:58 +08:00
alexlamsl	ec64acd2c8	introduce `unsafe_proto` - `Array.prototype.slice` => `[].slice` closes #1491	2017-02-21 13:29:58 +08:00
alexlamsl	ac0b61ed6e	remove extraneous spaces between ++/+/--/- fixes #1377 closes #1488	2017-02-21 13:29:58 +08:00
Anthony Van de Gejuchte	c06a50f338	Add .gitattributes to checkout lf eol style closes #1487	2017-02-21 13:29:58 +08:00
alexlamsl	09f9ae2de9	improve `--beautify bracketize` reduce whitespaces from if-else statements fixes #1482 closes #1483	2017-02-21 13:29:58 +08:00
alexlamsl	7e6331bb39	add benchmark & JetStream tests - `test/benchmark.js` measures performance - `test/jetstream.js` verifies correctness - configurable mangle/compress/output options closes #1479	2017-02-21 13:29:58 +08:00
alexlamsl	e275148998	enhance `global_defs` - support arrays, objects & AST_Node - support `"a.b":1` on both cli & API - emit warning if variable is modified - override top-level variables fixes #1416 closes #1198 closes #1469	2017-02-21 13:29:58 +08:00
alexlamsl	974247c8c0	evaluate AST_SymbolRef as parameter fix invalid boolean conversion now exposed in `make_node_from_constant()` closes #1477	2017-02-21 13:29:58 +08:00
alexlamsl	a0f4fd390a	improve reduce_vars and fix a bug - update modified flag between compress() passes - support IIFE arguments - fix corner case with multiple definitions closes #1473	2017-02-21 13:29:58 +08:00
alexlamsl	b8b133d91a	improve keep_fargs & keep_fnames - utilise in_use_ids instead of unreferenced() - drop_unused now up-to-date for subsequent passes closes #1476	2017-02-21 13:29:58 +08:00
alexlamsl	c525a2b190	fix duplicated test names previously test cases with the same name would be skipped except for the last one `test/run-test.js` will now report duplicated names as errors closes #1461	2017-02-21 13:29:58 +08:00
kzc	6ffbecb72b	smarter const replacement taking name length into account closes #1459	2017-02-21 13:29:58 +08:00
alexlamsl	f0ff6189be	clean up `negate_iife` - remove extra tree scanning phase for `negate_iife` - `negate_iife` now only deals with the narrowest form, i.e. IIFE sitting directly under `AST_SimpleStatement` - `booleans`, `conditionals` etc. will now take care the rest via more accurate accounting - `a(); void b();` => `a(); b();` fixes #1288 closes #1451	2017-02-21 13:29:58 +08:00
alexlamsl	6b3c49e458	improve string concatenation shuffle associative operations to minimise parentheses and aid other uglification efforts closes #1454	2017-02-21 13:29:57 +08:00
alexlamsl	f584ca8d07	`-c sequences=N` suboptimal at N expression cutoff N = 2: a; b; c; d; was: a, b; c; d; now: a, b; c, d; fixes #1455 closes #1457	2017-02-21 13:29:57 +08:00
alexlamsl	ae4db00991	tweak do-while loops - `do{...}while(false)` => `{...}` - clean up `AST_While` logic closes #1452	2017-02-21 13:29:57 +08:00
alexlamsl	100307ab31	fixes & improvements to [].join() fixes - [a].join() => "" + a - ["a", , "b"].join() => "a,,b" - ["a", null, "b"].join() => "a,,b" - ["a", undefined, "b"].join() => "a,,b" improvements - ["a", "b"].join(null) => "anullb" - ["a", "b"].join(undefined) => "a,b" - [a + "b", c].join("") => a + "b" + c closes #1453	2017-02-21 13:29:57 +08:00
alexlamsl	148047fbbf	drop unused: toplevel, assign-only - assign statement does not count towards variable usage by default - only works with assignments on the same scope level as declaration - can be disabled with `unused` set to "keep_assign" - `toplevel` to drop unused top-level variables and/or functions - `top_retain` to whitelist top-level exceptions closes #1450	2017-02-21 13:29:57 +08:00
kzc	d11dca3cf9	fix stray else in compress with conditionals=false closes #1449	2017-02-21 13:29:57 +08:00
alexlamsl	e5badb9541	enable typeof "undefined" for general use move out of unsafe, guard corner case with screw_id8 instead closes #1446	2017-02-18 19:01:42 +08:00
alexlamsl	fa668a28b4	fix corner case in keep_fnames happens when inner function: - just below top level - not referenced - `unused` is disabled closes #1445	2017-02-18 19:00:54 +08:00
alexlamsl	11676f9d72	fix crash in unsafe replacement of undefined remove extraneous call to AST_SymbolRef.reference() closes #1443	2017-02-18 18:58:23 +08:00
Anthony Van de Gejuchte	dd31d12a91	Improve optimizing `function() { if(c){return foo} bar();}` closes #1437	2017-02-18 18:56:18 +08:00
Alex Lam S.L	7f8d72d9d3	update test (#1441 ) improved reduce_vars & binary operands produce more optimal results	2017-01-26 12:59:32 +01:00
Alex Lam S.L	1eaa211e09	fix mangling collision with keep_fnames (#1431 ) * fix mangling collision with keep_fnames fixes #1423 * pass mangle options to figure_out_scope() bring command-line in line with minify()	2017-01-26 12:18:28 +01:00
Alex Lam S.L	0610c020b1	optimise binary operands with evaluate() (#1427 ) - remove call to evaluate() in is_constant() and let nested optimize() does its job instead - reject RegExp in is_constant() and remove special case logic under collapse_vars - operands to conditionals optimisation are now always evaluate()-ed - throw error in constant_value() instead of returning undefined to catch possible bugs, similar to make_node_from_constant() - optimise binary boolean operators under `evaluate` instead of `conditionals`	2017-01-26 12:16:50 +01:00
Alex Lam S.L	0d7d4918eb	augment evaluate to extract within objects (#1425 ) - gated by `unsafe` - replaces previous optimisation specific to String.length - "123"[0] => 1 - [1, 2, 3][0] => 1 - [1, 2, 3].length => 3 - does not apply to objects with overridden prototype functions	2017-01-26 12:14:18 +01:00
alexlamsl	48284844a4	add missing LHS cases which global_defs should avoid	2017-01-19 21:06:28 +01:00
kzc	ec2e5fa3a2	Have minify() and tests use figure_out_scope() as uglifyjs CLI does Clarify docs, help and tests for --support-ie8 and screw_ie8=false	2017-01-19 17:14:33 +01:00
Anthony Van de Gejuchte	da17766ddd	Add preventive test involving non-ascii function identifiers	2017-01-19 17:13:33 +01:00
Martijn Swaagman	98f330658f	Generate source map data from normalized files If using `inSourceMap` this fix will ensure the copying of `sourcesContent` is based on potentially normalized `sources` values (https://github.com/mozilla/source-map/blob/master/lib/source-map-consumer.js#L304-L309). For example `normalize` (https://github.com/mozilla/source-map/blob/master/lib/util.js#L80-L123) will rewrite `./dist/mySource.js` to `dist/mySource.js` in the target `_sources` of the `SourceMapConsumer`. As a result `orig_map.sourceContentFor(source, true);` would return `null` since the orginal `source` was no longer available in the consumer. By using the keys generating from the `SourceMapConsumer.constructor` consistency is ensured.	2016-11-29 20:42:56 +01:00
1111hui	0a35acbbe7	feat: add option.outFileName for JS API, if absense, sourceMap.file field will deduced	2016-11-29 20:29:12 +01:00
Ashley (Scirra)	2a9989dd18	Add --mangle-props-debug and fix --mangle-props=unquoted collision Patch by @AshleyScirra Based on: PR #1316 Renamed the CLI debug option to --mangle-props-debug Fixes: #1321 name collision in --mangle-props=unquoted	2016-11-29 20:25:39 +01:00
Anthony Van de Gejuchte	79b98a9fe8	Do not overwrite options.comments + cleanup	2016-11-29 20:24:08 +01:00
Anthony Van de Gejuchte	057de570e6	Pass mangle options to figure_out_scope before mangling in tests	2016-10-27 22:55:49 +02:00
Anthony Van de Gejuchte	8d74f34373	Don't filter shebangs when using the 'some' comment filter Also clarify documentation a bit more about using regexp as filter	2016-10-23 21:31:03 +02:00
Jann Horn	266ddd9639	fix uses_arguments handling (broken since `6605d15783`) Using the symbol declaration tracking of UglifyJS doesn't make sense here anyway, `arguments` always comes from something in the current scope. fixes #1299	2016-10-23 21:29:18 +02:00
pengzhenqing	e51c6ba380	Add an option for writing inline source map	2016-10-23 21:21:39 +02:00
Richard van Velzen	6389e52305	Remove console.log and add extra test case	2016-10-06 14:11:32 +02:00
Richard van Velzen	e05510f3bc	Add an option to wrap IIFEs in parenthesis For #1307.	2016-10-06 14:11:32 +02:00
kzc	fc9804b909	Fix (typeof side_effect()) in boolean context Fixes #1289 with suggestion by @rvanvelzen	2016-10-06 13:50:11 +02:00
alexlamsl	4761d07e0b	Optimize unmodified variables	2016-10-01 11:36:11 +02:00
Anthony Van de Gejuchte	0111497fc9	Make all comment options in cli available in js api Also removing more code within "loop" while at it.	2016-09-06 17:54:45 +02:00
kzc	25fc02743a	Account for side effects in `string + expr` optimization	2016-09-01 09:24:56 -04:00
kzc	0bd8053524	implement optimization: (x = 2 * x) ---> (x *= 2)	2016-08-30 08:43:02 -04:00
Richard van Velzen	8430123e9d	Fix negate_iife transform to return a correct tree for nested IIFEs Fix for #1256, partially reverts `d854523783`	2016-08-17 11:55:59 +02:00
kzc	d854523783	Fix negate_iife regression #1254	2016-08-17 01:29:34 -04:00
kzc	de619ae5a6	Fix --mangle-props and --mangle-props=unquoted Fixes: #1247 Fix --mangle-props and --name-cache inconsistency. AST_Dot and AST_Sub properties are now mangled by --mangle-props without regard to being used in an assignment statement. Note: if --mangle-props is used then all javascript files used must be uglified with the same mangle options. Fix the ignore_quoted=true mangle option, also known as `--mangle-props=unquoted`. If a given property is quoted anywhere it will not be mangled in any quoted or non-quoted context.	2016-08-14 21:51:25 +02:00
kzc	86859f6d7e	Additional object literal property tests	2016-08-14 21:49:43 +02:00
kzc	dcdcfe4d39	Add input file glob support to minify()	2016-08-14 21:46:38 +02:00
Lucas Wiener	38756b1f26	Moved test input files to test/input.	2016-08-14 21:40:14 +02:00
Lucas Wiener	85a09fc3b6	Added test for #1236	2016-08-14 21:40:14 +02:00
kzc	fb049d3a81	Fix unneeded parens around unary args in new expression.	2016-08-14 21:38:38 +02:00
kzc	67cca43358	Test reparsing test/compress/*.js output	2016-08-14 21:27:23 +02:00
Anthony Van de Gejuchte	642273c290	Legacy octal integer strict mode fixes	2016-07-21 14:42:16 +02:00
Lauri Pokka	41a9329409	lib/sourcemap.js: Copy sourceContent from old souce-map to the new source-map. Should fix #882	2016-07-17 19:36:15 +02:00
Anthony Van de Gejuchte	7eb52d2837	Keep const in own scope while compressing - Fixes #1205 - Fix provided by @kzc	2016-07-15 13:20:52 +02:00
kzc	eb63fece2f	Fix mangle with option keep_fnames=true for Safari. Fixes: #1202	2016-07-15 13:18:14 +02:00
Anthony Van de Gejuchte	2650182f47	Backport mocha with test from harmony	2016-07-04 00:51:09 +02:00
Anthony Van de Gejuchte	698705a820	Don't convert all strings to directives from moz-ast	2016-07-03 12:36:57 +02:00
Richard van Velzen	debc525fa1	Introduce a test that tests the --self build	2016-07-01 09:46:05 +02:00
Geraint	85924bb32e	Allow input files to be map (url->filename)	2016-06-30 22:23:59 +02:00
Anthony Van de Gejuchte	a97690fc72	Various LineTerminator changes * Escaped newlines should also produce SyntaxError * Fix multiline comment parsing and add tests * Adapt makePredicate to handle \u2028 and \u2029 * Move up nlb check in regex so it's checked before any escape handling * Change error messages to conform ecma standard * Find_eol not recornizing \u2028 and \u2029 as line terminator * Remove \u180e as it is removed in unicode 6.3.0 from the category zs	2016-06-30 22:12:50 +02:00
kzc	02c638209e	Enable --screw-ie8 by default. catch identifier is mangled correctly for ES5 standards-compliant JS engines by default. Unconditionally use the ie8 if/do-while workaround whether or not --screw-ie8 is enabled. To support non-standard ie8 javascript use: uglifyjs --support-ie8	2016-06-30 21:49:48 +02:00
kzc	335b72df03	Fix spidermonkey AST (ESTree) export and import, Array holes Fixes: #1156 #1161 Also add test to exercise Uglify after spidermonkey export/import of itself.	2016-06-30 21:44:12 +02:00
Anthony Van de Gejuchte	3a7d53f3cf	Move OctalEscapeSequence to read_escape_char This should simplify and improve implementation, make it easier to implement template strings, and keep master a bit more in sync with harmony. Previous implementation wasn't broken, though the loop gave me the impression it could read infinite numbers and annoyed me a bit. It was also slightly unnecessary because the lookup involved only 3 characters.	2016-06-30 21:42:15 +02:00
kzc	ace8aaa0f4	Fix conditional expressions of form (x ? -1 : -1) Fixes #1154, #1153	2016-06-21 14:52:13 -04:00
kzc	0c003c92a8	Don't replace undefined, NaN and Infinity within with scope	2016-06-21 10:53:29 +02:00
Anthony Van de Gejuchte	85fbf86d7b	Keep master in sync with harmony * Do not mangle when no mangle is required * Improve use_asm reset while printing code	2016-06-20 18:42:17 +02:00
Shrey Banga	e645ba84cf	Respect quote style in object literals The option added in `fbbaa42ee5` wasn't being respected inside object literals, so quoted property names would still be stripped out with this option. This is mostly a corner-case, but useful when the output is passed to something like the Closure compiler, where quoted property names can be used to prevent mangling.	2016-06-19 21:13:31 +02:00
Anthony Van de Gejuchte	6c99816855	Normalize error messages	2016-06-19 21:08:34 +02:00
Anthony Van de Gejuchte	2149bfb707	Don't mix strings with directives in output * Don't interpret strings with escaped content as directive * Don't interpret strings after empty statement as directive * Adapt output to prevent strings being represent as directive * Introduce UGLIFY_DEBUG to allow internal testing like EXPECT_DIRECTIVE	2016-06-19 20:59:17 +02:00
Anthony Van de Gejuchte	d7971ba0e4	Fix test262 failures related to <, <=, in and instanceof Fixed-by: @kzc	2016-06-15 23:11:08 +02:00
Anthony Van de Gejuchte	5c4cfaa0a7	Re-add parens after new expression in beautify mode	2016-06-12 20:03:48 +02:00
Anthony Van de Gejuchte	bb9c9707aa	Don't allow with statements in strict mode	2016-06-12 19:08:16 +02:00
Anthony Van de Gejuchte	6c8e001fee	Stop dropping args in new expressions	2016-06-12 17:17:17 +02:00
Richard van Velzen	9c53c7ada7	Fix octal string strict mode tests	2016-06-12 14:35:43 +02:00
David Bau	f99b7b630d	Escape null characters as \0 unless followed by 0-7.	2016-06-12 14:32:32 +02:00
Anthony Van de Gejuchte	ea31da2455	Don't drop unused if scope uses with statement Fix provided by @kzc	2016-06-12 14:30:28 +02:00
Anthony Van de Gejuchte	4d7746baf3	Throw errors in strict mode for octal strings Adds a directive tracker for the parser/tokenizer to allow parsing depending on directive context.	2016-06-12 14:27:08 +02:00
Anthony Van de Gejuchte	31d5825a86	Catch errors when compression test fails to parse	2016-06-09 21:12:15 +02:00
Anthony Van de Gejuchte	8287ef6781	Fix uglify attempting to rewrite invalid new expressions	2016-06-08 19:45:21 +02:00
Anthony Van de Gejuchte	00ad57e393	Do not allow newlines in regex	2016-06-05 17:02:19 +02:00
kzc	09d5707a8a	collapse_vars: Do not consider RegExp literals to be constants Fixes #1100	2016-05-27 00:03:51 -04:00
kzc	1e390269d4	Optimize if_return for single if/return cases. Fixes #1089	2016-05-24 17:54:08 +02:00
Richard van Velzen	bc49dfd27a	Completely allow evaluating -0	2016-05-24 17:50:29 +02:00
Richard van Velzen	27eedbc302	Never produce -0 when evaluating expressions (like -"") Fix for #1085. The major case was already there, but more expressions can result in -0.	2016-05-17 22:34:38 +02:00
kzc	5f464b41e2	Simplify iife `new` fix as suggested by @rvanvelzen. Added a test for IIFEs in nested contexts.	2016-05-15 19:12:17 -04:00
kzc	bcc1318d4b	Do not apply negate_iife optimization to `new` expression	2016-05-09 03:19:28 -04:00
kzc	a0e03c9df4	Retain comments before AST_Constants during mangle.	2016-05-04 20:11:45 +02:00
Anthony Van de Gejuchte	6641dcafb6	Fix regression causing tests to fail on windows	2016-05-04 20:05:51 +02:00
kzc	f39fd3d583	Handle CR line endings in comments. Fixes #1050	2016-05-04 20:02:29 +02:00
Richard van Velzen	e9224ab444	Add test cases for slightly more esoteric cases	2016-04-26 11:49:55 +02:00
Richard van Velzen	4d9a085687	Add test case for hoisting a single function	2016-04-26 11:43:03 +02:00
Richard van Velzen	4fe630431c	Hoist functions when reversing if (x) return; ... vs. if (!x) ... Fixes #1052	2016-04-23 23:48:33 +02:00
kzc	c55dd5ed74	Add `passes` compress option. Fix duplicate compress warnings.	2016-04-19 20:05:33 +02:00
kzc	e4fa4b109a	Parse comments without recursion to avoid RangeError. Fixes #993	2016-04-16 02:02:47 -04:00
Richard van Velzen	4b4528ee05	Prevent endless recursion when evaluating self-referencing consts Fix #1041	2016-04-13 15:03:31 +02:00
Richard van Velzen	187a0caf9d	Add base54.reset() to compress tests Without this reset, char counts bleed to next tests. One test had a bad expect clause.	2016-04-12 20:08:09 +02:00
kzc	3907a5e3b2	Fix warnings for referenced non-hoisted functions. Fixes #1034 Also added `expect_warnings` functionality to test framework.	2016-04-11 18:15:20 +02:00
kzc	98434258d0	Optimize ternaries with boolean consequent or alternative. Fixes #511	2016-04-02 17:22:12 +02:00
Mihai Bazon	f68de86a17	Merge pull request #1011 from kzc/dont-produce-let-in-mangle Do not produce `let` as a variable name in mangle.	2016-03-24 18:16:26 +02:00
kzc	07bb7262d0	Escape all ASCII control characters within strings when using ascii_only. Fixes #1017. Tab characters within strings are now output as `\t` in all output modes.	2016-03-24 11:51:54 -04:00
kzc	21befe583f	Attempt to increase timeout for mocha let test.	2016-03-15 11:44:09 -04:00
kzc	a9d4a6291b	Do not produce `let` as a variable name in mangle. Would previously occur in large generated functions with 21,000+ variables. Fixes #986.	2016-03-15 11:20:32 -04:00
philippsimon	ee6c9fabb7	Fix: Uglified Number.prototype functions on big numbers	2016-03-14 12:41:06 +01:00
kzc	11b0efdf84	boolean_expression ? true : false --> boolean_expression	2016-02-22 17:59:36 +01:00
kzc	5486b68850	Take operator \|\| precendence into account for AST_If optimization. Fixes #979.	2016-02-21 12:05:02 -05:00
alexlamsl	6547437725	preserve ThisBinding for side_effects	2016-02-17 19:34:01 +01:00
Richard van Velzen	9662228f6a	Don't compress (0, eval)() to eval()	2016-02-16 19:00:48 +01:00
alexlamsl	31a9b05c96	Preserve ThisBinding in conditionals & collapse_vars Fixes #973	2016-02-16 18:47:49 +01:00
kzc	929de2b0de	collapse_vars: fix if/else and ternary operator side effects	2016-01-28 12:17:06 -05:00
kzc	af2472d85e	collapse_vars: fix bug in repeated var defs of same name	2016-01-28 16:48:50 +01:00
kzc	0a38a688f9	fix bug in collapse_vars for right side of "\|\|" and "&&"	2016-01-27 14:18:46 -05:00
kzc	f4c2ea37bf	Collapse single use var definitions Fix #721	2016-01-27 11:48:15 +02:00
Richard van Velzen	b5a7197ae5	Merge pull request #928 from STRML/constPragma Mark vars with /** @const */ pragma as consts so they can be eliminated.	2016-01-20 19:04:36 +01:00
Samuel Reed	1b703349cf	Tighten up @const regex.	2016-01-20 11:35:45 -06:00
Samuel Reed	f97da4294a	Use TreeWalker for more accurate @const results and update tests	2016-01-20 10:54:00 -06:00
Samuel Reed	8b71c6559b	Mark vars with /** @const */ pragma as consts so they can be eliminated. Fixes older browser support for consts and allows more flexibility in dead code removal.	2016-01-19 13:23:02 -06:00
Anthony Van de Gejuchte	26641f3fb2	Allow operator names as getters/setters Fixes #919 Fix provided by @kzc	2016-01-19 19:28:51 +01:00
Anthony Van de Gejuchte	70e5b6f15b	Add some tests for comment-filters through api Also never bother comment options to filter comment5/shebang comments as they have their custom filter.	2016-01-19 19:14:19 +01:00
Anthony Van de Gejuchte	8439c8ba98	Make arguments test slightly more strict	2016-01-15 00:04:05 +01:00
Anthony Van de Gejuchte	5c4e470d43	Add scope test for arguments	2016-01-14 22:32:46 +01:00
Anthony Van de Gejuchte	6605d15783	Never mangle arguments and keep them in their scope Fixes #892 Helped-by: kzc	2016-01-14 19:45:52 +01:00
Richard van Velzen	ac8db977b9	Merge pull request #905 from avdg/unit-tests Add unit tests	2016-01-14 08:54:40 +01:00
Anthony Van de Gejuchte	88b77ddaa9	Add test case for line continuation	2016-01-13 00:34:56 +01:00
Mihai Bazon	fe4e9f9d97	Fix hoisting the var in ForIn Close #913	2016-01-05 13:56:52 +02:00
Anthony Van de Gejuchte	8c6af09ae0	Add mocha tests	2015-12-27 22:38:20 +01:00
Richard van Velzen	60c4030a4d	Merge pull request #874 from kzc/fix-conditionals #873 Fix `conditionals` optimizations with default compress options	2015-12-26 14:28:33 +01:00
Anthony Van de Gejuchte	0cabedc526	Disable loop optimization for parse-only tests	2015-12-18 19:20:56 +01:00
Anthony Van de Gejuchte	5cd26c005b	Add tests	2015-12-18 14:39:48 +01:00
kzc	774bda13cd	#873 Fix `conditionals` optimizations with default compress options	2015-11-24 13:27:50 -05:00
Mihai Bazon	619adb0308	Replace util.error with console.log	2015-11-12 11:47:37 +02:00
kzc	bd0ae6569f	`return undefined` optimization no longer uses `return_void_0` option	2015-10-29 08:19:12 +01:00
kzc	841a661071	more tests for `return undefined` optimization	2015-10-29 08:19:12 +01:00
kzc	7491d07666	optimize `return undefined` and `return void 0`	2015-10-29 08:19:12 +01:00
Richard van Velzen	335e349314	Allow specification beautify options in tests Caught an error in #847 as well - `output` wasn't passed anywhere which led to an exception. `options` was available though.	2015-10-28 20:50:01 +01:00
Fábio Santos	b5623b19d4	Fix #836	2015-10-20 19:48:56 +01:00
kzc	dff54a6552	Fix other operator output related to <!-- or -->	2015-10-13 01:17:10 -04:00
Mihai Bazon	1940fb682c	Fix tests	2015-10-12 10:27:00 +03:00
kzc	9f1f21b810	Output `-- >` instead of `-->` in expressions. Escape `<!--` and `-->` within string literals.	2015-10-12 10:19:17 +03:00
kzc	0d952ae43d	add asm.js test	2015-10-07 10:00:28 +02:00
Mihai Bazon	6637c267a5	Fix mozilla-ast after module loading changes Need to explicitly qualify stuff now, since it's not evaluated in some global scope. Ref #636	2015-09-24 18:13:21 +03:00
Ville Lautanala	5fd12451f9	Control keeping function arguments with a single option	2015-09-14 19:38:45 +02:00
Richard van Velzen	fcde6109b0	Fix bad parsing of `new new x()()` constructs Fixes #739	2015-08-27 12:29:36 +03:00
Richard van Velzen	e3bd223dac	Don't change sequences that influence lexical binding in calls Fixes #782	2015-08-25 10:53:35 +02:00
Christopher Chedeau	3ff0b9e0c9	[Fix] --define replaces SymbolRefs in LHS of assignments See #208 for context	2015-08-10 11:22:36 -07:00
Richard van Velzen	759b3f7d6d	Fix mangling of property names which overwrite unmangleable properties Fixes #747.	2015-08-05 21:18:39 +02:00
Richard van Velzen	f8684f418a	Replace util.puts in run-tests with console.log See `d2dda34b2a`	2015-07-29 15:24:45 +02:00
Mihai Bazon	905b601178	Don't attempt to negate non-boolean AST_Binary Fix #751	2015-07-22 16:55:55 +03:00
kzc	9d398d999c	spacing	2015-06-14 17:45:19 -04:00
kzc	fedb6191a1	optimizations for && and \|\| where left side is constant expression	2015-06-11 23:22:38 -04:00
Mihai Bazon	a5b60217ce	Fix compressing conditionals Only transform foo() ? EXP(x) : EXP(y) into EXP(foo() ? x : y) if EXP has no side effects. Fix #710	2015-05-18 13:56:04 +03:00
Mihai Bazon	3b14582d6b	Fix tests	2015-04-17 11:28:59 +03:00
Fábio Santos	de58b0289d	Added expect_exact for testing the OutputStream This works almost exactly like `expect`, except that you pass a literal string of which the result is compared with the generated output.	2015-04-14 20:26:47 +02:00
Mihai Bazon	18c63ff3d8	Fix compression of conditionals Don't move the condition on the right side of an assignment when the left side may have side effects. Fix #677	2015-04-13 17:29:48 +03:00
Mihai Bazon	ecfd881ac6	Keep unused function arguments by default Discarding unused function arguments affects function.length, which can lead to some hard to debug issues. This optimization is now done only in "unsafe mode". Fix #121	2015-03-20 10:28:51 +02:00
Richard van Velzen	61e850ceb5	Clean up unit test breakage In `992b6b9fcc` unit test broke (which I missed). This was due to undeclared variables not being side-effects free. However, since they're really not side-effect free, just declare them in the test cases.	2015-02-11 21:27:21 +01:00
Richard van Velzen	992b6b9fcc	Fix invalid removal of left side in && and \|\| compression See #637. This does not produce the optimal result, but it does prevent the removal of non-side-effect-free code.	2015-02-11 21:08:41 +01:00
Richard van Velzen	605362f89d	Drop all `console` statements properly Because the base reference can be an member expression as well, we have to dig a bit deeper to find the leftmost base reference. Fixes #451	2015-01-31 13:24:44 +01:00
Mihai Bazon	d36067cd35	Merge pull request #615 from avdg/unicode Give parser more unicode support	2015-01-20 13:00:31 +02:00
Anthony Van de Gejuchte	f1b2134dd1	Add test	2015-01-20 00:31:44 +01:00
Tal Ater	a1a4c2ada7	Optimize conditionals where the consequent and alternative are both booleans and not equivalent	2015-01-13 18:27:21 +01:00
Richard van Velzen	42ecd42ac0	Replace the correct node when replacing in `void` sequences Close #611.	2015-01-12 17:09:34 +01:00
Mihai Bazon	a10f6a96d7	Merge pull request #482 from arty-name/inline-ng-inject added @ngInject support for inline functions	2015-01-11 12:10:42 +02:00
Richard van Velzen	0d48af3f36	Add a "keep_fnames" option to the compressor to retain function expression names See #552. This is useful for stack traces.	2015-01-04 20:14:38 +01:00
Richard van Velzen	c75f5a1fd8	Fix #597 NaN and Infinity were replaced in the output generation, instead of during compression. This could lead to results where `1/0` was inserted without parens leading to invalid output. The nodes are replaced in the compression step now, and the output generation returns their regular names. This should not be a problem, since they're already only constructed from the original name.	2014-12-31 12:23:00 +01:00
Mihai Bazon	01d19b4b52	Referencing a global is assumed to have side effects. Close #550	2014-09-28 11:18:25 +03:00
Tal Ater	fb0ec720a4	Compress conditions that have side effects using sequences	2014-09-04 02:57:49 +03:00
Tal Ater	7971ed33d1	Added a test for else if	2014-09-03 01:35:30 +03:00
Tal Ater	885835a655	Compress conditional assignments where all possible outcomes are equivalant and condition has no side effects	2014-09-02 23:30:25 +03:00
Ingvar Stepanyan	b467a3c877	Added generative testing for AST conversions.	2014-08-03 20:48:59 +03:00
Artemy Tregubenko	6006dd933d	added newline at the end of the file	2014-07-08 11:16:35 +02:00
Dan Wolff	8511e80f48	Evaluate "foo".length ==> 3	2014-07-01 11:06:51 +03:00
Artemy Tregubenko	524a8a42a4	added @ngInject support for inline functions	2014-05-11 14:01:08 +02:00
Mihai Bazon	37693d2812	Update tests.	2014-04-18 11:19:52 +03:00
Matt Basta	ac0086a745	Simplify nested conditionals if possible	2014-02-06 12:39:13 -08:00
Mihai Bazon	b521b4b926	Conditional/call optimization foo ? bar(x) : bar(y) ==> bar(foo ? x : y)	2013-12-29 10:31:30 +02:00
Mihai Bazon	8f35a363d9	AST_Catch shouldn't really inherit from AST_Scope. Fix #363 I hereby acknowledge that figure_out_scope has become a mess.	2013-12-05 13:30:29 +02:00
Mihai Bazon	50b8d7272c	Fix faulty compression `String(x + 5)` is not always the same as `x + "5"`. Overlooked that. :-( Close #350	2013-11-20 21:13:16 +02:00
Mihai Bazon	eab99a1c3d	Better fix for #343 We can in fact lift sequences, but only if the operation is assignment and the left-hand side has no side effects nor property access -- that should guarantee that whatever we place before it cannot affect the sense of the assignment. Dropped contrived test case (too hard to support it now), added a more meaningful one.	2013-11-06 10:48:48 +02:00
Richard van Velzen	785c6064cc	Disallow reversal where lhs has higher or equal precedence Fixes #267	2013-10-29 21:37:36 +01:00
Mihai Bazon	b47f7b76b9	Merge branch 'master' of github.com:mishoo/UglifyJS2	2013-10-27 10:03:01 +02:00
Mihai Bazon	582cc55cff	Display number of failed tests and corresponding files	2013-10-27 10:02:44 +02:00
Mark Jaquith	9cd118ca3d	Add a unit test for issue-126 Add a unit test to test to test for aggressive parenthesis removal that causes functional changes.	2013-10-25 16:28:15 -04:00
Richard van Velzen	1a5a4bd631	Fix #269 Shorten most primitives where possible. Also optimize some edge cases.	2013-10-24 11:08:33 +02:00
Richard van Velzen	118105db43	Add an exit code to the test suite By adding the exit code 1 (or any other non-zero exit code) `npm test` will know the tests didn't perform correctly. This way it's easier to know if pull requests are good or bad.	2013-10-23 20:24:58 +02:00
Mihai Bazon	afdaeba37d	More attempts to determine when addition is associative Somebody hit me with bug reports on this. :) Refs #300	2013-09-22 15:26:10 +03:00
Mihai Bazon	037199bfe2	Actually let's move away those monsters from the evaluate function ev() should do a single thing — evaluate constant expressions. if that's not possible, just return the original node. it's not the best place for partial evaluation there, instead doing it in the compress functions.	2013-09-22 15:00:42 +03:00
Mihai Bazon	583fac0a0f	More dirty handling of [ ... ].join() in unsafe mode Close #300	2013-09-22 13:14:42 +03:00
Dan Wolff	e8158279ff	Evaluate [...].join() if possible: minor bugfix Follow-up to `78e98d2`.	2013-09-22 11:34:30 +03:00
Mihai Bazon	78e98d2611	When `unsafe` is set, evaluate [...].join() if possible Close #298	2013-09-19 18:20:45 +03:00
Dan Wolff	8d14efe818	Concatenate strings also on the right-hand side of an expression that cannot be evaluated. Fix #126 E.g. converts: a+'Hello'+'World' to a+'HelloWorld'	2013-09-19 13:03:03 +03:00
Mihai Bazon	ed80b4a534	Move support for `negate_iife` in the compressor, rather than code generator (the code generator doesn't maintain enough context to know whether the return value is important or discarded) Fixes #272	2013-08-20 17:45:52 +03:00
Mihai Bazon	4c4dc2137c	Don't drop unused setter argument. Fix #257	2013-08-07 12:04:58 +03:00
David Glasser	b1febde3e9	Fix output for arrays whose last element is a hole: [1,,] `1529ab96` started to do this (by considering holes to be separate from "undefined") but it still converted [1,,] (length 2, last element hole, trailing comma) to [1,] (length 1, trailing comma) Unfortunately the test suite doesn't really make this clear: the new test here passes with or without this patch because run-tests.js beautifys the expected output (in "make_code"), which does the incorrect transformation! If you make some manual change to arrays.js to make the test fail and see the INPUT and OUTPUT, then you can see that without this fix, [1,,] -> [1,], and with this fix it stays [1,,].	2013-07-18 15:39:22 +03:00
Mihai Bazon	d56ebd7d7b	Fix a["1_1"] Close #204	2013-05-14 10:42:34 +03:00
Trey Griffith	1e9f98aa51	add a test for zero-length string in is_identifier_string, which is used in property compression. Also added a test exercising the change.	2013-05-08 22:43:20 +03:00
Mihai Bazon	a6ed2c84ac	Better fix for equality of typeof ... against "undefined"	2013-05-08 16:22:48 +03:00
Justin Lau	a1958aad56	Fixed typeof undefined optimization and updated related test case to accomodates the sort behaviour changes made in commit mishoo/UglifyJS2@aebafad41e. Signed-off-by: Justin Lau <justin@tclau.com>	2013-05-08 16:22:48 +03:00
Justin Lau	672699613e	Added test cases for #104 . Signed-off-by: Justin Lau <justin@tclau.com>	2013-05-08 16:22:48 +03:00
Justin Lau	fcd544cc10	Added test scenario with unicode in properties name. Signed-off-by: Justin Lau <justin@tclau.com>	2013-05-06 01:26:33 +08:00
Justin Lau	8227e8795b	Added scenario in test case where properties shouldn't be accessed with dotted syntax even with screw_ie8 option. Signed-off-by: Justin Lau <justin@tclau.com>	2013-05-05 22:08:13 +08:00
Michael Ficarra	5af144522a	fixes #189 : use dotted member access when --screw-ie8 option given	2013-04-20 15:11:05 -05:00
Roman Bataev	b956e5f1d9	Add tests for typeof evaluation	2013-04-03 22:34:19 -04:00
Mihai Bazon	dac6efb43d	Drop last `default:` if it's the last branch and empty Close #141	2013-03-01 13:12:03 +02:00
Richard Gibson	522566ea80	Fix #105 : property comparison to undefined is not always safe	2013-01-23 23:52:04 -05:00
David Glasser	1529ab965a	Fix output for arrays containing undefined values. `1b6bcca7` was a first attempt at this. That commit made Uglify stop replacing holes with undefined, but instead it started replacing undefined with holes. This is slightly problematic, because there is a difference between a hole and an undefined value. More problematically, it changed [1,undefined] to [1,] which generally doesn't even parse as a hole (just as a trailing comma), so it didn't even preserve the length of the array! Instead, parse holes as their own special AST node which prints invisibly.	2013-01-17 11:36:10 +02:00
Mihai Bazon	b5c3253b49	Add test for issue #59	2012-11-30 11:26:37 +02:00
Mihai Bazon	bdfcbf496b	better solution for the last test in constant switch folding	2012-11-14 12:21:43 +02:00
Mihai Bazon	dba8da4800	optimize constant switch blocks ref. mishoo/UglifyJS#441	2012-11-14 12:06:07 +02:00
Mihai Bazon	53355bdb24	fix invalid AST produced by dropping unused variable close #44	2012-11-12 13:23:57 +02:00
Mihai Bazon	1a5fd3e052	optimization for if/break as first statement in a loop body for(...; x; ...) if (y) break; → for(...; x&&!y; ...); similarly for `while` and some combinations (i.e. the `break` appears in the `else` clause, etc.)	2012-11-08 11:43:14 +02:00
Mihai Bazon	abe0ebbf02	don't move expressions containing the binary `in` operator into the `for` initializer (opera can't parse it) close #25	2012-10-30 14:50:47 +02:00
Mihai Bazon	70fd2b1f33	fix for `if (...) return; else return ...;` (it was assumed that the first `return` always contains a value) close #22	2012-10-24 09:33:32 +03:00
Mihai Bazon	30faaf13ed	more sequence optimizations (lift some sequences above binary/unary expressions so that we can avoid parens)	2012-10-22 11:58:06 +03:00
Mihai Bazon	afb7faa6fa	more optimizations for some break/continue cases	2012-10-18 15:14:57 +03:00
Mihai Bazon	1ffd526554	disable warnings in the test suite	2012-10-13 15:18:11 +03:00
Mihai Bazon	fcc0229087	drop unused function arguments also add test for "drop_unused" (the last one fails for now)	2012-10-13 15:04:44 +03:00
Mihai Bazon	ba3df646c0	actually enable the option that drops unused names in the test of issue #12	2012-10-12 11:41:48 +03:00
Mihai Bazon	731fa9c236	add test for issue #12	2012-10-12 10:49:48 +03:00
Mihai Bazon	3412498795	AST cleanup (dropped AST_StatementBase)	2012-10-03 15:41:11 +03:00
Mihai Bazon	c11de17e99	added option for side-effect-free statements, fix test	2012-10-03 13:08:03 +03:00
Mihai Bazon	378ed17809	disable `hoist_vars` by default and change `comparations` to `comparisons`	2012-10-03 11:27:05 +03:00
Mihai Bazon	13278c6649	removed the "squeeze" method (it's now effectively "transform")	2012-09-26 19:52:32 +03:00
Mihai Bazon	4f97da9660	minor tests fix	2012-09-24 10:27:49 +03:00
Mihai Bazon	6ad414ef28	minor	2012-09-17 14:33:36 +03:00
Mihai Bazon	45a3970ca3	one more test for sequences	2012-09-17 12:53:52 +03:00
Mihai Bazon	7b6a402916	rewrite handle_if_return optimizations of if/return/continue seem to be even better now	2012-09-16 15:46:20 +03:00
Mihai Bazon	d72c1d1293	few more optimizations: - do multiple passes in tighten_body if it was changed - transform if (foo) return x; return y; ==> return foo?x:y - don't optimize !0 as true (use best_of after evaluation of constant expr) With hoist_vars off we now beat UglifyJS v1 on jQuery-1.8.1	2012-09-13 15:20:57 +03:00
Mihai Bazon	f5027ec1fc	minor	2012-09-12 16:29:20 +03:00
Mihai Bazon	2b4093ba83	fixed run-tests and an issue about reversing the condition in AST_If	2012-09-12 13:00:13 +03:00
Mihai Bazon	a41e6cfabb	more progress on the compressor (WIP)	2012-09-10 16:37:05 +03:00
Mihai Bazon	43c75c9248	checkpoint	2012-09-07 18:55:13 +03:00
Mihai Bazon	919b2733ab	always keep declarations found in unreachable code a few more tests and some cleanups.	2012-09-07 15:18:32 +03:00
Mihai Bazon	b77574ea1c	fixed tests (need to drop the toplevel block in "expected" if it's a single statement)	2012-09-07 11:22:01 +03:00
Mihai Bazon	d7c1dc6c05	a LabeledStatement should be in fact a StatementWithBody This fixes output for: if (foo) { moo: if (bar) { break moo; } } else { baz(); } (the labeled statement must be outputted inside brackets)	2012-09-03 12:05:10 +03:00
Mihai Bazon	8dfa9fe7e5	minor	2012-08-27 11:00:26 +03:00
Mihai Bazon	159a6f048c	wrote more of the compressor and added some tests	2012-08-22 15:21:58 +03:00

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1629 Commits