JoBoEVD/UglifyJS
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72 Commits

Author SHA1 Message Date
kzc
593677d2ff Add proper support for "use asm"; blocks. Disable -c optimization within "use asm"; sections and preserve floating point literals in their original form. Non-asm.js sections are optimized as before. Asm.js sections can still be mangled and minified of whitespace. No special command line flags are required. 2015-10-07 10:00:28 +02:00
Mihai Bazon
aa45f6586e rename --prop-cache to --name-cache 
... and support storing there variable names as well, to help with multiple
invocations when mangling toplevel.
 2015-03-16 13:16:30 +02:00
Richard van Velzen
e37b67d013 Add an option to prevent function names from being mangled 
See #552. This is mostly useful for having the actual function names in traces.
 2015-01-04 21:48:43 +01:00
Cheng Liangyu
fe06fc85d3 fix base54 2014-12-01 13:16:44 +08:00
Arnavion
7be680d3f8 Don't warn for an unreferenced exception symbol in a catch block. 2014-09-12 21:01:19 -07:00
Mihai Bazon
bf30dc3038 Mangle name of exception when --screw-ie8. Fix #430. 
The effect of not mangling it was visible only with --screw-ie8 (otherwise
the names would be mangled exactly because they leaked into the parent
scope).
 2014-02-14 13:58:14 +02:00
Mihai Bazon
f65e55dff4 minor 2013-12-16 20:37:09 +02:00
colorhook
fa3300f314 bugfix #242 2013-12-16 15:53:43 +08:00
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
d2190c2bf3 Properly scope catch identifier when --screw-ie8 
Fix #344
 2013-11-28 16:43:30 +02:00
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
d09f0adae3 arguments outside of a function is an ordinary variable. 
Fix #501
 2013-10-17 18:20:33 +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
9fc8a52142 Set "global" on undeclared SymbolDef-s 2013-05-22 13:08:19 +03:00
Michał Gołębiowski
75f0bbe6e8 renamed --screw-ie to --screw-ie8, documented it in README.md, indicated it doesn't break IE9+ 2013-03-25 17:03:21 +01:00
Mihai Bazon
b14d3df3d2 Keep legit code working even when --screw-ie is not passed. 
Previously:

    Without `--screw-ie`, UglifyJS would always leak names of function
    expressions into the containing scope, as if they were function
    declarations.  That was to emulate IE<9 behavior.  Code relying on this
    IE bug would continue to work properly after mangling, although it would
    only work in IE (since other engines don't share the bug).  Sometimes
    this broke legitimage code (see #153 and #155).

    With `--screw-ie` the names would not be leaked into the current scope,
    working properly in legit cases; but still it broke legit code when
    running in IE<9 (see #24).

Currently:

    Regardless of the `--screw-ie` setting, the names will not be leaked.
    Code relying on the IE bug will not work properly after mangling.
    <evil laughter here>

    Without `--screw-ie`: a hack has been added to the mangler to avoid
    using the same name for a function expression and some other variable in
    the same scope.  This keeps legit code working, at the (negligible,
    indeed) cost of one more identifier.

    With `--screw-ie` you allow the mangler to name function expressions
    with the same identifier as another variable in scope.  After mangling
    code might break in IE<9.

Oh man, the commit message is longer than the patch.

Fix #153, #155
 2013-03-22 18:04:46 +02:00
Mihai Bazon
9b1a40dfc3 Support mangling toplevel names 
Close #127
 2013-03-13 09:44:06 +02:00
Mihai Bazon
26746ce316 Add --screw-ie option 
For now the implication is that UglifyJS will not leak a function
expression's name in the surrounding scope (IE < 9 does that).

(ref. mishoo/UglifyJS#485)
 2013-03-02 14:28:34 +02:00
Mihai Bazon
9e8ba27dcd Fix handling of constants 
Close #113
 2013-02-06 11:15:31 +02:00
Mihai Bazon
6b14f7c224 Fix handling of labels in nested scopes 2013-01-04 14:17:33 +02:00
Mihai Bazon
83a4ebfedc Implement -m sort=true 
close #83
 2013-01-02 12:39:00 +02:00
Mihai Bazon
320c110b33 When hoisting variables, try to merge in assignments that follow. 2012-12-05 12:30:25 +02:00
Mihai Bazon
e312c5c2a7 fix API breakage 
close #36, #38
 2012-11-08 12:31:28 +02:00
Mihai Bazon
5276a4a873 add AST_Accessor and AST_SymbolAccessor node types 
AST_Accessor will represent the function for a setter or getter.  Since they
are not mangleable, and they should not introduce a name in scope, we have a
new node for their name (AST_SymbolAccessor) which doesn't inherit from
AST_SymbolDeclaration.

fix #37
 2012-11-07 12:43:27 +02:00
Mihai Bazon
a4f6d46118 add option to mangle names even if eval/with is in use 
(for more fair comparison to Closure compiler)
 2012-11-06 18:19:51 +02:00
Mihai Bazon
8413787efc use a Dictionary object instead of plain object for hashes 
to mitigate the `__proto__` issue

related to #30
 2012-11-02 10:58:45 +02:00
Mihai Bazon
cb3cafa14d cripple scope to make IE happy :-( 
close #24
 2012-10-25 18:52:35 +03:00
Mihai Bazon
8f66458598 the sort option is broken anyway, removed it 
we need to mangle names from outermost to innermost scope; mangling names
from inner scopes before we got to the outer scope won't work correctly,
therefore sorting doesn't make sense.
 2012-10-17 15:24:47 +03:00
Mihai Bazon
370d3e0917 fix regression from fb5c01c073 
is_digit takes a char code now, not a string
 2012-10-13 12:24:27 +03:00
Mihai Bazon
172aa7a93c cleanup 
- use prototype-less objects where feasible (minor speed improvement)
- get rid of HOP
 2012-10-11 11:07:42 +03:00
Mihai Bazon
5053a29bc0 fix propagation of symbol references 2012-10-11 10:28:48 +03:00
Mihai Bazon
dacce1b1fa seems cleaner if AST_Label doesn't inherit from AST_SymbolDeclaration 2012-10-10 11:37:51 +03:00
Mihai Bazon
3799ac8973 add --lint and display {file} in scope_warnings 2012-10-10 11:26:59 +03:00
Mihai Bazon
1b0aab2ce9 added $propdoc to AST nodes and some cleanups 
hopefully we can make the AST documentation self-generating
 2012-10-09 18:20:39 +03:00
Mihai Bazon
d4970b35ac should not expose base54.sort() in the API docs, I think 2012-10-08 13:37:27 +03:00
Mihai Bazon
7ae09120ed prevent mangling only when eval is *called*, not when it's just referenced 2012-10-05 16:17:31 +03:00
Mihai Bazon
682a58a1f5 removed some unused variables 2012-10-04 08:49:18 +03:00
Mihai Bazon
11863d6f9a more cleanup (dropped AST_SwitchBlock) 2012-10-03 15:52:31 +03:00
Mihai Bazon
36be211e99 option to exclude certain names from mangling 2012-10-02 14:02:33 +03:00
Mihai Bazon
dde5b22b5e support defines 2012-10-02 13:20:07 +03:00
Mihai Bazon
e1098b04a7 "use strict"; 2012-10-02 12:45:58 +03:00
Mihai Bazon
347160c631 add AST_SymbolConst for names defined with const 2012-10-02 12:22:39 +03:00
Mihai Bazon
9e5dd81f1e a shy attempt to obey width in the beautifier; added bracketize option to always print brackets around if/do/while/for statements; export more options via the CLI 2012-10-02 11:22:38 +03:00
Mihai Bazon
896444482a minor 2012-09-28 11:12:47 +03:00
Mihai Bazon
05e15b1c0c fix mangling 
(bug in our code prevented the mangler from using a name that was in use
prior to mangling but not after it)
 2012-09-27 00:01:16 +03:00
Mihai Bazon
a83b28503f properly drop mutually-referring declarations that are not otherwise 
referenced and have no side effects
 2012-09-23 12:47:34 +03:00
Mihai Bazon
5491e1d7b1 better support for multiple input files: 
- use a single AST_Toplevel node for all files
- keep original source filename in the tokens
 2012-09-21 14:19:05 +03:00
Mihai Bazon
e8da72d304 drop unused variables 2012-09-19 12:27:38 +03:00
Mihai Bazon
a4d2340c73 fixed label scope/mangling 2012-09-18 19:26:46 +03:00