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2351 Commits

Author SHA1 Message Date
Mihai Bazon
3a81f60982 Don't drop_unused before compression. 
Fix #280, #282
 2013-10-09 19:15:09 +03:00
Mihai Bazon
f2348dd98b Rename clean_getters to pure_getters; add pure_funcs. 2013-10-04 13:17:25 +03:00
David Glasser
bb0a762d12 Only allow identifier start characters at the beginning of identifiers. 
Without this fix, the following source:

   x = {"\u200c": 42};

would incorrectly be converted into a quoteless key. But while \u200c is allowed
to be in identifiers, it cannot be at the beginning, as per ES5.

(For example, the SockJS client library doesn't work under uglify starting with
d9ad3c7c.)
 2013-10-03 17:02:19 -07:00
Mihai Bazon
8cc86fee60 add clean_getters compressor option (default false) 
allows one to specify if `foo.bar` is considered to have side effects.
 2013-10-02 19:38:01 +03:00
Mihai Bazon
88fb83aa81 minor optimization 
unlikely to help in hand-written code:

    (something() ? foo : bar) == foo  ==>  something()
 2013-10-02 15:31:31 +03:00
Mihai Bazon
95b4507c02 Fix error in the output minifying Function("return this")() 2013-09-30 11:49:29 +03:00
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
83ba338bd0 Avoid printing <!-- in the output (HTML5 comment) 2013-09-06 10:10:45 +03:00
Mihai Bazon
7c10b25346 Support HTML5 comment syntax (enabled by default!) 
See http://javascript.spec.whatwg.org/#comment-syntax
    https://github.com/mishoo/UglifyJS/issues/503
    https://github.com/marijnh/acorn/issues/62
 2013-09-06 09:54:30 +03:00
Mihai Bazon
cb9d16fbe4 minor 2013-09-06 09:52:56 +03:00
Mihai Bazon
5d8da864c5 Fix names. 2013-09-02 19:38:00 +03:00
Mihai Bazon
85b527ba3d Disallow continue referring to a non-IterationStatement. Fix #287 
Simplifies handling of labels (their definition/references can be easily
figured out at parse time, no need to do it in `figure_out_scope`).
 2013-09-02 19:36:16 +03:00
Mihai Bazon
1c6efdae34 Better fix for #286 2013-09-02 11:36:48 +03:00
Mihai Bazon
b0ca896d98 Fix parsing a.case /= 1 
Close #286
 2013-09-02 11:09:54 +03:00
Mihai Bazon
78a217b94c Fix parsing regexp after unary-prefix operator 
++/x/.y

Fix #284
 2013-09-02 09:56:27 +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
Michael Ficarra
d9ad3c7cbf fixes #259: don't unnecessarily quote object properties when --screw-ie8 2013-08-18 19:45:06 -05:00
Mihai Bazon
4c4dc2137c Don't drop unused setter argument. 
Fix #257
 2013-08-07 12:04:58 +03:00
Mihai Bazon
964d5b9aa4 Don't pretend to evaluate lambdas 
Fix #255
 2013-08-04 21:44:17 +03:00
Mihai Bazon
41c627379c Reverting "added option for dropping unused params" 
Revert "added option for dropping unused params"

(turns out we already had the `unused` option for this.)

This reverts commit e54df2226f.
 2013-07-25 18:08:36 +03:00
Dusan Bartos
e54df2226f added option for dropping unused params 2013-07-25 17:37:47 +03:00
Forbes Lindesay
dfa395f6ff Make DefaultsError a real Error object 2013-07-22 01:44:03 +01:00
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
193049af19 Revert previous patch, it was no good. 2013-07-15 11:59:23 +03:00
Mihai Bazon
4a0bab0fa3 Add "position" option to parser, to specify initial pos/line/col 
(for parsing embedded scripts)
 2013-07-15 11:27:11 +03:00
Mihai Bazon
9243b0cb9d Apply transformer to AST_VarDef's name 
Fix #237
 2013-07-14 13:24:09 +03:00
Mihai Bazon
fc9ba323c4 Fix typo. 
Close #239
 2013-07-12 09:56:58 +03:00
Mihai Bazon
02a84385a0 Don't swap binary ops when "use asm" is in effect. 
Refs #167
 2013-06-07 12:52:09 +03:00
Ville Lautanala
f29f07aabd Escape null characters as \x00 
Since \0 might be mistakenly interpreted as octal if followed by a
number and using literal null is in some cases interpreted as end of
string, escape null as \x00.
 2013-06-03 20:46:42 +03:00
Mihai Bazon
9fc6796d2a Add negate_iife option to the code generator. 
See discussion in a9511dfbe5
 2013-05-22 21:22:14 +03:00
Mihai Bazon
9fc8a52142 Set "global" on undeclared SymbolDef-s 2013-05-22 13:08:19 +03:00
Mihai Bazon
22a038e6a2 Fix output of statement: new function(){...}; 
Close #209
 2013-05-20 08:27:37 +03:00
Mihai Bazon
ca3388cf5a Add --expr, an option to parse a single expression (suitable for JSON) 2013-05-15 13:27:23 +03:00
Mihai Bazon
caa8896a8a Only compress code in new Function if all arguments are strings. 2013-05-14 18:36:31 +03:00
Mihai Bazon
f64539fb76 Compress code passed to new Function if it's a constant. 
Only for `--unsafe`.

Close #203
 2013-05-14 10:47:06 +03:00
Mihai Bazon
d56ebd7d7b Fix a["1_1"] 
Close #204
 2013-05-14 10:42:34 +03:00
Mihai Bazon
a9511dfbe5 Use the negation hack rather than parens for a toplevel function expression call 
(only in !beautify mode)
 2013-05-09 08:58:47 +03:00
Mihai Bazon
064e7aa1bb Fix is_assignable 
(not likely to be noticed, it's only used in `strict` parse mode)
 2013-05-09 08:44:24 +03:00
Mihai Bazon
11e24d53a1 Fix property names 
Close #199
 2013-05-08 22:37:48 +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
9af2bbffde Fixed dot properties not optimizing unicode identifiers. Signed-off-by: Justin Lau <justin@tclau.com> 2013-05-07 14:20:19 +03:00
Justin Lau
1e3bc0caa0 Fixed dot property issue with invlid identifier names. 
Signed-off-by: Justin Lau <justin@tclau.com>
 2013-05-05 22:27:43 +08:00
Mihai Bazon
9794ebf88c Workaround for missing prefix in UnaryExpression generated by Esprima 
See #193
 2013-04-29 15:03:52 +03:00
Michael Ficarra
5af144522a fixes #189: use dotted member access when --screw-ie8 option given 2013-04-20 15:11:05 -05:00