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36 Commits

Author SHA1 Message Date
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
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
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
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
a41e6cfabb more progress on the compressor (WIP) 2012-09-10 16:37:05 +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
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