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239 Commits

Author SHA1 Message Date
kzc
98434258d0 Optimize ternaries with boolean consequent or alternative. 
Fixes #511
 2016-04-02 17:22:12 +02:00
Mihai Bazon
f68de86a17 Merge pull request #1011 from kzc/dont-produce-let-in-mangle 
Do not produce `let` as a variable name in mangle.
 2016-03-24 18:16:26 +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
kzc
21befe583f Attempt to increase timeout for mocha let test. 2016-03-15 11:44:09 -04:00
kzc
a9d4a6291b Do not produce let as a variable name in mangle. 
Would previously occur in large generated functions with 21,000+ variables.
Fixes #986.
 2016-03-15 11:20:32 -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
70e5b6f15b Add some tests for comment-filters through api 
Also never bother comment options to filter comment5/shebang comments
as they have their custom filter.
 2016-01-19 19:14:19 +01:00
Anthony Van de Gejuchte
8439c8ba98 Make arguments test slightly more strict 2016-01-15 00:04:05 +01:00
Anthony Van de Gejuchte
5c4e470d43 Add scope test for arguments 2016-01-14 22:32:46 +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
Richard van Velzen
ac8db977b9 Merge pull request #905 from avdg/unit-tests 
Add unit tests
 2016-01-14 08:54:40 +01:00
Anthony Van de Gejuchte
88b77ddaa9 Add test case for line continuation 2016-01-13 00:34:56 +01:00
Mihai Bazon
fe4e9f9d97 Fix hoisting the var in ForIn 
Close #913
 2016-01-05 13:56:52 +02:00
Anthony Van de Gejuchte
8c6af09ae0 Add mocha tests 2015-12-27 22:38:20 +01:00
Richard van Velzen
60c4030a4d Merge pull request #874 from kzc/fix-conditionals 
#873 Fix `conditionals` optimizations with default compress options
 2015-12-26 14:28:33 +01:00
Anthony Van de Gejuchte
0cabedc526 Disable loop optimization for parse-only tests 2015-12-18 19:20:56 +01:00
Anthony Van de Gejuchte
5cd26c005b Add tests 2015-12-18 14:39:48 +01:00
kzc
774bda13cd #873 Fix conditionals optimizations with default compress options 2015-11-24 13:27:50 -05:00
Mihai Bazon
619adb0308 Replace util.error with console.log 2015-11-12 11:47:37 +02:00
kzc
bd0ae6569f return undefined optimization no longer uses return_void_0 option 2015-10-29 08:19:12 +01:00
kzc
841a661071 more tests for return undefined optimization 2015-10-29 08:19:12 +01:00
kzc
7491d07666 optimize return undefined and return void 0 2015-10-29 08:19:12 +01:00
Richard van Velzen
335e349314 Allow specification beautify options in tests 
Caught an error in #847 as well - `output` wasn't passed anywhere which led to an exception. `options` was available though.
 2015-10-28 20:50:01 +01:00
Fábio Santos
b5623b19d4 Fix #836 2015-10-20 19:48:56 +01:00
kzc
dff54a6552 Fix other operator output related to <!-- or --> 2015-10-13 01:17:10 -04:00
Mihai Bazon
1940fb682c Fix tests 2015-10-12 10:27:00 +03:00
kzc
9f1f21b810 Output -- > instead of --> in expressions. Escape <!-- and --> within string literals. 2015-10-12 10:19:17 +03:00
kzc
0d952ae43d add asm.js test 2015-10-07 10:00:28 +02:00
Mihai Bazon
6637c267a5 Fix mozilla-ast after module loading changes 
Need to explicitly qualify stuff now, since it's not evaluated in some
global scope.

Ref #636
 2015-09-24 18:13:21 +03:00
Ville Lautanala
5fd12451f9 Control keeping function arguments with a single option 2015-09-14 19:38:45 +02:00
Richard van Velzen
fcde6109b0 Fix bad parsing of new new x()() constructs 
Fixes #739
 2015-08-27 12:29:36 +03:00
Richard van Velzen
e3bd223dac Don't change sequences that influence lexical binding in calls 
Fixes #782
 2015-08-25 10:53:35 +02:00
Christopher Chedeau
3ff0b9e0c9 [Fix] --define replaces SymbolRefs in LHS of assignments 
See #208 for context
 2015-08-10 11:22:36 -07:00
Richard van Velzen
759b3f7d6d Fix mangling of property names which overwrite unmangleable properties 
Fixes #747.
 2015-08-05 21:18:39 +02:00
Richard van Velzen
f8684f418a Replace util.puts in run-tests with console.log 
See d2dda34b2a
 2015-07-29 15:24:45 +02:00
Mihai Bazon
905b601178 Don't attempt to negate non-boolean AST_Binary 
Fix #751
 2015-07-22 16:55:55 +03:00
kzc
9d398d999c spacing 2015-06-14 17:45:19 -04:00
kzc
fedb6191a1 optimizations for && and || where left side is constant expression 2015-06-11 23:22:38 -04:00
Mihai Bazon
a5b60217ce Fix compressing conditionals 
Only transform foo() ? EXP(x) : EXP(y) into EXP(foo() ? x : y) if EXP has no
side effects.

Fix #710
 2015-05-18 13:56:04 +03:00
Mihai Bazon
3b14582d6b Fix tests 2015-04-17 11:28:59 +03:00
Fábio Santos
de58b0289d Added expect_exact for testing the OutputStream 
This works almost exactly like `expect`, except that you pass a literal string
of which the result is compared with the generated output.
 2015-04-14 20:26:47 +02:00
Mihai Bazon
18c63ff3d8 Fix compression of conditionals 
Don't move the condition on the right side of an assignment when
the left side may have side effects.

Fix #677
 2015-04-13 17:29:48 +03:00
Mihai Bazon
ecfd881ac6 Keep unused function arguments by default 
Discarding unused function arguments affects function.length, which can lead
to some hard to debug issues.  This optimization is now done only in "unsafe
mode".

Fix #121
 2015-03-20 10:28:51 +02:00
Richard van Velzen
61e850ceb5 Clean up unit test breakage 
In 992b6b9fcc unit test broke (which I missed). This was due to undeclared variables not being side-effects free.

However, since they're really not side-effect free, just declare them in the test cases.
 2015-02-11 21:27:21 +01:00
Richard van Velzen
992b6b9fcc Fix invalid removal of left side in && and || compression 
See #637. This does not produce the optimal result, but it does prevent the removal of non-side-effect-free code.
 2015-02-11 21:08:41 +01:00
Richard van Velzen
605362f89d Drop all console statements properly 
Because the base reference can be an member expression as well, we have to dig a bit deeper to find the leftmost base reference.

Fixes #451
 2015-01-31 13:24:44 +01:00
Mihai Bazon
d36067cd35 Merge pull request #615 from avdg/unicode 
Give parser more unicode support
 2015-01-20 13:00:31 +02:00
Anthony Van de Gejuchte
f1b2134dd1 Add test 2015-01-20 00:31:44 +01:00
Tal Ater
a1a4c2ada7 Optimize conditionals where the consequent and alternative are both booleans and not equivalent 2015-01-13 18:27:21 +01:00
Richard van Velzen
42ecd42ac0 Replace the correct node when replacing in void sequences 
Close #611.
 2015-01-12 17:09:34 +01:00
Mihai Bazon
a10f6a96d7 Merge pull request #482 from arty-name/inline-ng-inject 
added @ngInject support for inline functions
 2015-01-11 12:10:42 +02:00
Richard van Velzen
0d48af3f36 Add a "keep_fnames" option to the compressor to retain function expression names 
See #552. This is useful for stack traces.
 2015-01-04 20:14:38 +01:00
Richard van Velzen
c75f5a1fd8 Fix #597 
NaN and Infinity were replaced in the output generation, instead of
during compression. This could lead to results where `1/0` was inserted
without parens leading to invalid output.

The nodes are replaced in the compression step now, and the output
generation returns their regular names. This should not be a problem,
since they're already only constructed from the original name.
 2014-12-31 12:23:00 +01:00
Mihai Bazon
01d19b4b52 Referencing a global is assumed to have side effects. 
Close #550
 2014-09-28 11:18:25 +03:00
Tal Ater
fb0ec720a4 Compress conditions that have side effects using sequences 2014-09-04 02:57:49 +03:00
Tal Ater
7971ed33d1 Added a test for else if 2014-09-03 01:35:30 +03:00
Tal Ater
885835a655 Compress conditional assignments where all possible outcomes are equivalant and condition has no side effects 2014-09-02 23:30:25 +03:00
Ingvar Stepanyan
b467a3c877 Added generative testing for AST conversions. 2014-08-03 20:48:59 +03:00
Artemy Tregubenko
6006dd933d added newline at the end of the file 2014-07-08 11:16:35 +02:00
Dan Wolff
8511e80f48 Evaluate "foo".length ==> 3 2014-07-01 11:06:51 +03:00
Artemy Tregubenko
524a8a42a4 added @ngInject support for inline functions 2014-05-11 14:01:08 +02:00
Mihai Bazon
37693d2812 Update tests. 2014-04-18 11:19:52 +03:00
Matt Basta
ac0086a745 Simplify nested conditionals if possible 2014-02-06 12:39:13 -08:00
Mihai Bazon
b521b4b926 Conditional/call optimization 
foo ? bar(x) : bar(y)  ==>  bar(foo ? x : y)
 2013-12-29 10:31:30 +02:00
Mihai Bazon
8f35a363d9 AST_Catch shouldn't really inherit from AST_Scope. Fix #363 
I hereby acknowledge that figure_out_scope has become a mess.
 2013-12-05 13:30:29 +02:00
Mihai Bazon
50b8d7272c Fix faulty compression 
`String(x + 5)` is not always the same as `x + "5"`.  Overlooked that. :-(

Close #350
 2013-11-20 21:13:16 +02:00
Mihai Bazon
eab99a1c3d Better fix for #343 
We can in fact lift sequences, but only if the operation is assignment and
the left-hand side has no side effects nor property access -- that should
guarantee that whatever we place before it cannot affect the sense of the
assignment.

Dropped contrived test case (too hard to support it now), added a more
meaningful one.
 2013-11-06 10:48:48 +02:00
Richard van Velzen
785c6064cc Disallow reversal where lhs has higher or equal precedence 
Fixes #267
 2013-10-29 21:37:36 +01:00
Mihai Bazon
b47f7b76b9 Merge branch 'master' of github.com:mishoo/UglifyJS2 2013-10-27 10:03:01 +02:00
Mihai Bazon
582cc55cff Display number of failed tests and corresponding files 2013-10-27 10:02:44 +02:00
Mark Jaquith
9cd118ca3d Add a unit test for issue-126 
Add a unit test to test to test for aggressive parenthesis removal that causes functional changes.
 2013-10-25 16:28:15 -04:00
Richard van Velzen
1a5a4bd631 Fix #269 
Shorten most primitives where possible. Also optimize some edge cases.
 2013-10-24 11:08:33 +02:00
Richard van Velzen
118105db43 Add an exit code to the test suite 
By adding the exit code 1 (or any other non-zero exit code) `npm test`
will know the tests didn't perform correctly. This way it's easier to
know if pull requests are good or bad.
 2013-10-23 20:24:58 +02:00
Mihai Bazon
afdaeba37d More attempts to determine when addition is associative 
Somebody hit me with bug reports on this. :)

Refs #300
 2013-09-22 15:26:10 +03:00
Mihai Bazon
037199bfe2 Actually let's move away those monsters from the evaluate function 
ev() should do a single thing — evaluate constant expressions.  if that's
not possible, just return the original node.  it's not the best place for
partial evaluation there, instead doing it in the compress functions.
 2013-09-22 15:00:42 +03:00
Mihai Bazon
583fac0a0f More dirty handling of [ ... ].join() in unsafe mode 
Close #300
 2013-09-22 13:14:42 +03:00
Dan Wolff
e8158279ff Evaluate [...].join() if possible: minor bugfix 
Follow-up to 78e98d2.
 2013-09-22 11:34:30 +03:00
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