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471 Commits

Author SHA1 Message Date
Mihai Bazon
7d11b96f48 Only descend twice after drop_unused if it's the same node type. 
Fix #345
 2013-11-08 11:57:17 +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
Mihai Bazon
f4919e3a25 Do not lift sequence from right-hand side of binary operation. Fix #343 2013-11-06 10:18:28 +02:00
Mihai Bazon
63287c0e68 Workaround for Safari bug 
Close #313
 2013-10-30 13:59:59 +02:00
Mihai Bazon
c5ed2292bf Fix parsing setters/getters (allow keywords for name). 
The "key" property was always "set" or "get", which didn't make much sense.
Now it'll be the actual name of the setter/getter (AST_Node), and the
AST_Accessor object itself, which represents the function, won't store any
name.

Close #319
 2013-10-30 11:50:22 +02:00
Mihai Bazon
b70670b69f Fix regression after e4c5302406 
`x * (y * z)` ==> `x * y * z` -- the better place to do this is in the
compressor rather than codegen.
 2013-10-30 10:45:58 +02:00
Mihai Bazon
9dd97605bc indentation 2013-10-30 10:44:50 +02:00
Mihai Bazon
e4c5302406 Fix output for x = 2 * (a % b / b * c) 
(issue #337)
 2013-10-30 09:11:55 +02:00
Mihai Bazon
bea3d90771 minor 2013-10-30 09:10:56 +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
b214d3786f Fix typo 2013-10-29 15:53:54 +02:00
Mihai Bazon
a14c6b6574 Avoid shadowing name of function expression with function argument 
Close #179, #326, #327
 2013-10-29 13:18:09 +02:00
Mihai Bazon
f1b7094a57 Add "preamble" output option 
Close #335
 2013-10-29 11:09:18 +02:00
Mihai Bazon
0358e376f0 Fix codegen for when comments_before is undefined. 
Fix #333
 2013-10-28 09:39:29 +02:00
Richard van Velzen
e2daee9a65 Fix RHS concat (raised in #330) 
When attempting to concat the left-side of the rhs, make sure the rhs is
a string.
 2013-10-26 18:44:52 +02:00
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
7055af8221 Fix #280 
The `init` of the `ForStatement` is not a `BlockStatement` before it was
descended. The descend has to happen first, and *then* the actual
checks.
 2013-10-23 22:26:04 +02:00
Mihai Bazon
63d04fff69 Revert #3a81f60 for now 
(with it some tests break and it can generate invalid output, see issue #44)
 2013-10-22 21:50:55 +03:00
Mihai Bazon
d09f0adae3 arguments outside of a function is an ordinary variable. 
Fix #501
 2013-10-17 18:20:33 +03:00
Mihai Bazon
3fa9265ce4 wrap up 2013-10-09 22:15:43 +03:00
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