JoBoEVD/UglifyJS
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698 Commits

Author SHA1 Message Date
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