Commit Graph

1134 Commits

Author SHA1 Message Date
alexlamsl
bc9bfd15a2 fix test 2017-02-27 11:39:48 +08:00
alexlamsl
9fc1c4b3b5 update test
top-level block-variables not within blocks are global variables
2017-02-27 06:23:12 +08:00
alexlamsl
c59bf5e8d8 fix SymbolDef.global
properly compute for top-level block-variables
2017-02-27 06:20:08 +08:00
alexlamsl
d2d3a6e065 fix double-descend()
for `AST_Export` in `AST_Toplevel.figure_out_scope()`
2017-02-27 06:06:09 +08:00
alexlamsl
7755733716 fix "Starting destructuring."
commit 32f76f7ff does not take into account `AST_SymbolFunarg` is also `AST_SymbolVar`, so don't need to call `AST_Scope.def_variable()` twice
2017-02-27 05:30:18 +08:00
alexlamsl
b3a987b0df fix up drop_unused() 2017-02-27 05:11:01 +08:00
alexlamsl
88a338f29e Merge branch 'master' into harmony-2.8.0 2017-02-27 04:37:48 +08:00
Alex Lam S.L
0b0296eb2a v2.8.0 v2.8.0 2017-02-27 03:47:54 +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
kzc
b1c593a041 add harmony branch details in README (#1507) 2017-02-27 01:55:24 +08:00
Alex Lam S.L
13be50a4a9 faster tree transversal (#1462)
- convert `[].forEach()` to for-loops
2017-02-26 05:58:26 +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
834f9f3924 update docs for pure_funcs & drop_console (#1503)
closes #1362
closes #1399
2017-02-25 04:13:10 +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
Ondřej Španěl
852f78491a Avoid using exports when undefined (#1471)
Makes direct usage within web browser easier, even if officially unsupported.
2017-02-24 08:51:24 +08:00
Anthony Van de Gejuchte
07734b000a Destructuring consistency fixes (#1417)
- Use AST_Destructuring for lhf assignment patterns
- Use AST_DefaultAssign for default assignments
- Add more checks for lhs expressions
- Add lots of testing
- Cleanup ast (e.g. remove default property)
- Fix #1402 based on a patch from @kzc
- Refine spread allowance in array destructring pattern
- Add destructuring AST tree checker
2017-02-24 08:49:19 +08:00
Anthony Van de Gejuchte
85c1cba760 Remove duplicated code (#1456)
[ES6] Remove duplicated code
2017-02-24 08:48:13 +08:00
Alex Lam S.L
229e42cdee Merge pull request #1485 from alexlamsl/merge-2.8.0
2.8.0 staging
2017-02-24 07:33:57 +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
686a496b1c remove unused AST_Scope.nesting & AST_SymbolRef.frame
they are computed but never used

closes #1444
2017-02-18 18:59:40 +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
Mihai Bazon
eb55d8a9bb Merge pull request #1481 from anatdagan/propsmangle_only_identifiers
verify that property names after mangle are legal
2017-02-12 10:59:43 +02:00
Anat Dagan
81f1df14d7 in mangle_names there is a check that the variable name is legal and that it is not a reserved word. This should apply to propsmangle as well. 2017-02-10 14:13:47 +02:00
Richard van Velzen
4bd31607f6 Merge branch 'master' into harmony 2017-01-26 13:02:22 +01:00
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