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Author SHA1 Message Date
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
491f16c766 v2.8.16 v2.8.16 2017-03-25 03:21:16 +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
b454ce667e Update ISSUE_TEMPLATE.md 2017-03-24 23:12:58 +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
kzc
79334dda10 fix regression: CLI options with hyphens like -b ascii-only (#1640) 
fixes #1637
 2017-03-24 11:55:03 +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
9e2290b29c Merge pull request #1636 from alexlamsl/harmony-v2.8.15 
Merging from master for 2.8.15
harmony-v2.8.15 		2017-03-23 16:08:53 +08:00
alexlamsl
97d0fc271d Merge branch 'master' into harmony-v2.8.15 2017-03-23 15:28:17 +08:00
Alex Lam S.L
6b2f34769a v2.8.15 v2.8.15 2017-03-23 13:36:47 +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
7906033e82 Merge pull request #1624 from alexlamsl/harmony-v2.8.14 
Merging from master for 2.8.14
harmony-v2.8.14 		2017-03-19 18:24:29 +08:00
alexlamsl
4bf21ce5c1 add expect_stdout to tests 2017-03-19 15:35:39 +08:00
alexlamsl
44d6b47bdc Merge branch 'master' into harmony-v2.8.14 2017-03-19 15:31:18 +08:00
Alex Lam S.L
30a75049f5 v2.8.14 v2.8.14 2017-03-19 15:24:57 +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
129e449c8e Merge pull request #1614 from alexlamsl/harmony-v2.8.13 
Merging from master for 2.8.13
harmony-v2.8.13 		2017-03-18 13:02:09 +08:00
alexlamsl
75c3c8963f Merge branch 'master' into harmony-v2.8.13 2017-03-18 02:52:45 +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 Zaworski
d26b7522d9 Allow 'name' as object literal shorthand property (#1617) 
fixes #1613
 2017-03-18 01:29:13 +08:00
Christian Maughan Tegnér
b7c112eefe Add --in-source-map inline documentation (#1611) 2017-03-17 03:08:38 +08:00
Alex Lam S.L
b2b8a0d386 v2.8.13 v2.8.13 2017-03-17 02:01:33 +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
cf4bf4ceb1 fix stack issues with AST_Node.evaluate() (#1603) 
As patched in #1597, `make_node_from_constant()` makes inconsistent and sometimes incorrect calls to `optimize()` and `transform()`.

Fix those issues properly by changing the semantics of `evaluate()` and `make_node_from_constant()`, with the side effect that `evaluate()` no longer eagerly converts constant to `AST_Node`.
 2017-03-16 01:02:59 +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
2fd86d3cb0 Merge pull request #1601 from alexlamsl/harmony-v2.8.12 
Merging from master for 2.8.12
harmony-v2.8.12 		2017-03-14 14:29:32 +08:00
Alex Lam S.L
381bd3836e minor clean-ups (#1600) 
- remove obsolete optimisation in `AST_Binary` after #1477
- improve `TreeWalker.has_directive()` readability and resilience against multiple visits
 2017-03-14 13:19:05 +08:00
alexlamsl
8f7ab602e2 Merge branch 'master' into harmony-v2.8.12 2017-03-14 13:17:42 +08:00
Alex Lam S.L
1dd339f95e fix unused crashes (#1599) 
- `AST_DefaultAssign` on `keep_fargs`
- `AST_Expansion on` `keep_fargs`
- `AST_Destructuring` on top-level declarations without `toplevel`
 2017-03-14 13:13:43 +08:00
Alex Lam S.L
919d5e3482 v2.8.12 v2.8.12 2017-03-11 05:00:55 +08:00
Alex Lam S.L
e3a3db73ae temporary fix for boolean bug (#1597) 
fixes #1592
 2017-03-11 04:59:55 +08:00