JoBoEVD/UglifyJS
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1544 Commits

Author SHA1 Message Date
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 fb049d3a81 Fix unneeded parens around unary args in new expression. 2016-08-14 21:38:38 +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
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
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
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 d7971ba0e4 Fix test262 failures related to <, <=, in and instanceof 
Fixed-by: @kzc
 2016-06-15 23:11:08 +02:00
Anthony Van de Gejuchte 6c8e001fee Stop dropping args in new expressions 2016-06-12 17:17:17 +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 8287ef6781 Fix uglify attempting to rewrite invalid new expressions 2016-06-08 19:45:21 +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
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
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
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
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 6605d15783 Never mangle arguments and keep them in their scope 
Fixes #892

Helped-by: kzc
 2016-01-14 19:45:52 +01:00
Mihai Bazon fe4e9f9d97 Fix hoisting the var in ForIn 
Close #913
 2016-01-05 13:56:52 +02:00