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770 Commits

Author SHA1 Message Date
Fábio Santos
0465bd270d Starting out the import statement 2016-03-14 12:54:05 +01:00
philippsimon
ee6c9fabb7 Fix: Uglified Number.prototype functions on big numbers 2016-03-14 12:41:06 +01:00
viclm
6780d0906c Fix eager parsing of arrow functions for non-punc tokens 2016-03-10 22:18:48 +01:00
kzc
102d1b9137 #877 Ignore mangle sort option 2016-02-27 15:33:10 -05:00
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
sergeyv
7a4ed9d200 Revert "using the original sourcemap as the base" 
This reverts commit ad18689d92.

Reason for revert: introduce issue #882

Currently, generated sourcemap contains copy of all existing mappings and adds new mappings from uglified code to original one.
However, previous mapping are no longer valid and shouldn't be added.
 2016-02-10 10:19:39 +01:00
Darío Javier Cravero
0b303379c0 fix: don't fail if definition is undefined 
Running `uglifyjs --verbose --compress --mangle --screw-ie8 class.js`
with
`class.js`:
```
class Foo {
  bar() {
  }
}
```
Fails with:
```
undefined:4041
  return this.definition().unmangleable(options);
TypeError: Cannot read property 'unmangleable' of undefined
...
```
 2016-02-10 10:17:32 +01:00
Fábio Santos
d7ec2ecc12 Fix #931: Create arrow functions in maybe_assign so that they can be used in assignments 2016-02-09 00:02:23 +00:00
kzc
7c3fee9e31 collapse_vars: avoid replacement across AST_Case nodes to be on safe side even though no issues seen. 2016-01-29 10:35:07 -05:00
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
Mihai Bazon
915f907186 Add start/end in the arguments definition 
(keeps my https://github.com/mishoo/jsinfo.el working)
 2016-01-27 11:36:03 +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
4a7179ff91
Simplify by skipping extra tree walk. 2016-01-20 11:03:41 -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
Fugiman
5e78f20f1c Remove duplicate error message 2016-01-19 19:22:22 +01:00
Fugiman
1f75232062 Fix template string parsing 2016-01-19 19:22:22 +01:00
Fábio Santos
028ff64e9a Default values inside destructurings 2016-01-19 19:22:22 +01:00
Fábio Santos
7a8cffd631 Move the idea of a symbol having a default value up the class chain. 2016-01-19 19:22:22 +01:00
Fábio Santos
5b553aafe2 Destructuring parameters with defaults. function x({ foo, bar } = {}) { } 2016-01-19 19:22:22 +01:00
Fábio Santos
084437bc6d Non-destructuring default parameters 2016-01-19 19:22:22 +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
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
Mihai Bazon
fe4e9f9d97 Fix hoisting the var in ForIn 
Close #913
 2016-01-05 13:56:52 +02:00
Anthony Van de Gejuchte
6f3e35bb3f Fix ch that could contain other newline characters 2015-12-27 22:24:37 +01:00
Richard van Velzen
7f3dbb6df7 Merge branch 'master' into harmony 2015-12-26 17:59:38 +01:00
Anthony Van de Gejuchte
174404c0f3 Do not allow newlines in string literals 2015-12-26 15:08:37 +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
bd99b00413 Semicolon after do...while statement is optional 2015-12-17 23:02:35 +01:00
Richard van Velzen
e4d73d8b7c Merge pull request #870 from fabiosantoscode/feature/harmony-class 
Harmony: classes
 2015-12-07 18:59:07 +01:00
kzc
774bda13cd #873 Fix conditionals optimizations with default compress options 2015-11-24 13:27:50 -05:00
Fábio Santos
a800356ad0 Implement new.target 2015-11-21 14:48:23 +00:00
Fábio Santos
e076abdbf2 Mangle class names correctly 2015-11-21 13:59:18 +00:00
Fábio Santos
425613b0d2 mangle class names 2015-11-21 12:20:20 +00:00
Fábio Santos
69da8e53e0 Separate class expressions from class declarations and their symbols like defuns 2015-11-21 09:17:32 +00:00
Fábio Santos
bb6b3a773a Make AST_Class inherit AST_Scope instead of AST_Object 
This is one of those days I'd love to use multiple inheritance.

An AST_Class has lots of common with AST_Object, but unfortunately
`instanceof AST_Scope` is used very, very much, and a class has its name
inside its own special pocket scope. This compels me to make AST_Class
inherit Scope instead.

It looks like, although there is much in common with AST_Object,
`instanceof AST_Object` seldom are made, perhaps because it is less
often necessary to traverse an object than a scope.
 2015-11-20 19:34:10 +00:00
Mihai Bazon
7f48d5b33c Fix endless loop 
Close #866
 2015-11-16 12:08:24 +02:00
Mihai Bazon
b6968b6bd2 Limit max iterations for tighten_body 
Ref #866
 2015-11-16 12:08:24 +02:00
Mihai Bazon
08623aa6a7 Fix output for "use asm" code from SpiderMonkey AST 
(will only work properly if the SM tree contains "raw" properties for
Literal number nodes)
 2015-11-12 12:18:25 +02:00
Mihai Bazon
c898a26117 Build label def/refs info when figuring out scope 
Fix #862
 2015-11-12 11:48:06 +02:00
Mihai Bazon
7691bebea5 Rework has_directive 
It's now available during tree walking, i.e. walker.has_directive("use
asm"), rather than as part of the scope.  It's thus no longer necessary
to call `figure_out_scope` before codegen.  Added special bits in the
code generator to overcome the fact that it doesn't inherit from
TreeWalker.

Fix #861
 2015-11-11 22:15:25 +02:00
Mihai Bazon
3c4346728e Merge pull request #854 from kzc/moz-regexp-2 
Have mozilla AST RegExpLiteral parser use regex.pattern and regex.flags
 2015-11-10 10:12:30 +02:00
Mihai Bazon
18d37ac761 Fix parsing invalid input 
i.e. `x = 1.xe` — because parseFloat("1.xe") returns 1, this parsed as
`x = 1`.

Ref #857
 2015-11-09 13:15:20 +02:00
Richard van Velzen
63d35f8f6d Prevent ReDoS by not using a regexp to verify floating point numbers 
`parseFloat` will return `NaN` for invalid numbers anyway, which is the check used to throw the parse error.

Fixes #857
 2015-11-09 11:28:27 +01:00
kzc
7dbe961b2d simplify mozilla AST RegExpLiteral token parse and handle corner cases of regex.pattern better 2015-11-02 13:10:37 -05:00
kzc
94c4daaf9e Have mozilla AST RegExpLiteral parser use regex.pattern and regex.flags rather than non-standard raw property. 2015-11-02 12:24:09 -05:00
kzc
37ee9de902 rename To_Moz_Literal to To_Moz_RegExp 2015-11-01 10:20:42 -05:00
kzc
83db98ad3b Fixed RegExp literal in mozilla AST generation/output and added a --dump-spidermonkey-ast flag 2015-11-01 01:02:52 -04:00
kzc
bd0ae6569f return undefined optimization no longer uses return_void_0 option 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
Richard van Velzen
392ac4ff31 Merge branch 'master' into harmony 2015-10-28 20:38:07 +01:00
Michael Ficarra
a887cde9f2 fixes #845: \v escaping should be restricted to "screw_ie8" mode 2015-10-27 09:05:21 -07:00
Fábio Santos
9ffed2bea6 static properties 2015-10-27 12:24:37 +00:00
Fábio Santos
5f7cb6939c Starting ES6 classes 2015-10-27 12:24:37 +00:00
Fábio Santos
64e7a00399 Accept keyword names as concise method names 2015-10-27 09:31:16 +01:00
Fábio Santos
c99eaae360 Make concise methods work with propmangle 2015-10-27 09:31:16 +01:00
Fábio Santos
34213ea2f8 Create a new symbol for methods' names 2015-10-27 09:31:16 +01:00
Fábio Santos
0d8dea9538 start concise methods 2015-10-27 09:31:16 +01:00
Fábio Santos
2cce61c564 Allow 'of' to be a name. 2015-10-26 20:56:59 +00:00
Richard van Velzen
246ec416c0 Merge branch 'master' into harmony 2015-10-20 21:58:58 +02:00
Fábio Santos
b5623b19d4 Fix #836 2015-10-20 19:48:56 +01:00
Richard van Velzen
6be9c752d5 Merge branch 'master' into harmony 2015-10-20 20:12:10 +02:00
startswithaj
6b2861e086 Make_string was missing \v and wasnt reversing vertical tabs even though read_escaped_char coverts them 2015-10-15 17:42:16 +10:00
kzc
dff54a6552 Fix other operator output related to <!-- or --> 2015-10-13 01:17:10 -04:00
Fábio Santos
b31918bbf0 computed properties 2015-10-12 21:38:20 +01:00
Mihai Bazon
17eef5a3c2 Only encode <!-- and --> in strings when inline_script 2015-10-12 10:21:22 +03:00
kzc
9f1f21b810 Output -- > instead of --> in expressions. Escape <!-- and --> within string literals. 2015-10-12 10:19:17 +03:00
Richard van Velzen
b14496c742 Merge branch 'master' into harmony 
Conflicts:
	lib/compress.js
 2015-10-12 08:54:44 +02:00
kzc
4d2f7d83af Fix handling of "use asm" when no command line flags are passed to uglifyjs. SCOPE_IS_NEEDED is unconditionally true now. Refactored floating point literal parsing to be more in keeping with the AST class design. 2015-10-07 13:10:53 -04:00
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
Anthony Van de Gejuchte
c69294c449 Implement shebang support 2015-10-06 22:35:45 +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
Mihai Bazon
99233c44cc No longer use vm to load code. 
Improves performance 2x on node > 0.10.

Ref #636
 2015-09-24 17:58:51 +03:00
Mihai Bazon
33528002b4 Fix wrap_commonjs to include code first 
(code could have directives, i.e. "use strict")
 2015-09-24 17:58:51 +03:00
Ville Lautanala
5fd12451f9 Control keeping function arguments with a single option 2015-09-14 19:38:45 +02:00
Richard van Velzen
991fa99655 Merge branch 'master' into harmony 2015-09-13 14:17:45 +02:00
Fábio Santos
dde9e293df parse, output the let statement 2015-09-13 14:15:53 +02:00
Richard van Velzen
34685a6f55 Merge pull request #794 from fabiosantoscode/feature/harmony-template-strings-2 
Harmony: template strings
 2015-09-08 21:23:41 +02:00
Fábio Santos
2fac2bbfe4 Remove unused state variable in_parameters, and also remove unreachable code (try_an_object always returned an object!) 2015-09-05 23:01:29 +01:00
Fábio Santos
242c61be94 prefixed template strings, like "String.rawfoo\nbar". 2015-09-05 22:48:38 +01:00
Fábio Santos
e1cb1a0e3c Parse and output ES6 template strings. Yikes! 2015-09-05 22:32:57 +01:00
Richard van Velzen
fcde6109b0 Fix bad parsing of new new x()() constructs 
Fixes #739
 2015-08-27 12:29:36 +03:00
Fábio Santos
adee5023c0 What about --mangle-props being on and --mangle being off? 2015-08-25 17:52:51 +01:00
Fábio Santos
7ee8f3512e play nice with propmangle 2015-08-25 17:49:29 +01:00
Fábio Santos
dc5db9b6ca Starting destructuring expressions 2015-08-25 17:49:27 +01:00
Richard van Velzen
e3bd223dac Don't change sequences that influence lexical binding in calls 
Fixes #782
 2015-08-25 10:53:35 +02:00
Fábio Santos
079aaa0d48 Tolerate expansions in vardefs, too! 2015-08-21 12:04:26 +02:00
Fábio Santos
d4f17f29ae Destructuring vardef in for..of and for..in 2015-08-21 12:04:26 +02:00
Fábio Santos
e99bc914ca Do not mangle a name if it is in a destructuring vardef. 2015-08-21 12:04:26 +02:00
Fábio Santos
025d34bfa2 Add holes in destructuring defs, also make them nestable 2015-08-21 12:04:26 +02:00
Fábio Santos
c44c2d6c21 Parse and compress destructuring VarDefs 2015-08-21 12:04:26 +02:00
Fábio Santos
824ecfb8a2 A little refactoring. Add a new function to get all symbols in a destructuring. 2015-08-21 12:04:26 +02:00
Fábio Santos
ceebc466b9 prepare AST_Destructuring for the Ents 2015-08-21 12:04:26 +02:00
Richard van Velzen
35b31bdd4e Merge branch 'master' into harmony 2015-08-21 11:58:35 +02:00
Richard van Velzen
c8b82583d2 Merge pull request #773 from fabiosantoscode/harmony-typeof-arrows 
Fix evaluating the typeof an arrow function.
 2015-08-21 11:51:42 +02:00
Richard van Velzen
9f9179ba1a Merge pull request #774 from fabiosantoscode/feature/harmony-symbol 
remove Symbol's argument when we're unsafe and Symbol is undeclared
 2015-08-21 11:51:02 +02:00
Richard van Velzen
872231a0ca Merge pull request #775 from fabiosantoscode/feature/binary-literals 
Parse ES6 number literals, round 2
 2015-08-21 11:50:39 +02:00
Fábio Santos
a8f8aa518b Add new-style octal literals and make the B and the O case insensitive. 2015-08-17 11:50:56 +01:00
Fábio Santos
4c12cccff9 remove Symbol's argument when we're unsafe and it's undeclared 2015-08-14 22:44:16 +01:00
Fábio Santos
dcce4e5c66 Fix evaluating the typeof an arrow function. Using evaluate on used to cause a crash. 2015-08-14 22:05:42 +01:00
Richard van Velzen
56c0b834d6 Merge pull request #771 from fabiosantoscode/feature/binary-literals 
Parse binary number literals
 2015-08-14 14:59:55 +02:00
Fábio Santos
6f864402d3 Parse binary number literals 2015-08-14 03:24:54 +01:00
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
8909e9e1cb Merge pull request #763 from fabiosantoscode/feature/harmony-super 
Feature/harmony super
 2015-08-07 08:54:20 +02:00
Fábio Santos
e80ed38772 Super! 2015-08-07 02:44:53 +01:00
Richard van Velzen
759b3f7d6d Fix mangling of property names which overwrite unmangleable properties 
Fixes #747.
 2015-08-05 21:18:39 +02:00
Fábio Santos
9863f0efa3 expand parameters 
Conflicts:
	test/compress/harmony.js
 2015-08-05 21:15:23 +02:00
Richard van Velzen
e8664e63ef Merge branch 'master' into harmony 2015-08-05 21:13:11 +02:00
Fábio Santos
a68953c491 => with destructuring arguments. Requires a lot of parser changes 2015-08-04 00:57:53 +01:00
Fábio Santos
fa5c4f2d03 Adding arrow functions 2015-08-04 00:57:53 +01:00
Richard van Velzen
66761d7ecf Fix semicolon printing when restricting max line length 
Fixes #755
 2015-07-30 16:13:32 +02:00
Fábio Santos
9d7d365c2b for...of 2015-07-29 15:10:54 +02:00
Chris Cowan
9854deb626 Re-use the caught exception's error message in the parse error call. 2015-07-29 15:06:52 +02:00
Chris Cowan
d6814050dd Give a good error message if an invalid regular expression is found. 2015-07-29 15:05:59 +02:00
Fábio Santos
ad344c5be3 Add a test to verify that destructuring arguments work with #203 code 2015-07-29 14:54:45 +02:00
Fábio Santos
96b89e34a3 test that names used in destructurings don't get hoisted 2015-07-29 14:54:45 +02:00
Fábio Santos
4644becb9b do not support destructuring arguments and ngInject 2015-07-29 14:54:45 +02:00
Fábio Santos
f7460166dd remove trace statement 2015-07-29 14:54:45 +02:00
Fábio Santos
32f76f7ff8 Starting destructuring. 2015-07-29 14:54:45 +02:00
thorn0
252fc65558 Advanced way to specify if a function call might have side effects. #400 2015-07-29 14:36:42 +02:00
Mihai Bazon
905b601178 Don't attempt to negate non-boolean AST_Binary 
Fix #751
 2015-07-22 16:55:55 +03:00
Mihai Bazon
63fb2d5a44 Merge pull request #735 from kzc/master 
optimizations for && and || where left side is constant expression
 2015-07-20 09:58:01 +03:00
Mihai Bazon
85a5fc0aeb Don't drop parens in a * (b * c). Close #744 2015-06-30 10:10:29 +03:00
kzc
f47b2b52a5 operator && and || optimization: add "else" before "if" as intended 2015-06-14 17:44:26 -04:00
kzc
fedb6191a1 optimizations for && and || where left side is constant expression 2015-06-11 23:22:38 -04:00
Joao Carlos
0ac6918a41 Add --mangle-regex option 2015-06-09 14:16:50 +03:00
Mihai Bazon
bce4307e9e Treat \uFEFF as whitespace. 
Fix #714
 2015-05-20 16:17:46 +03:00
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
44fd6694eb fix again reserved props 2015-05-13 22:03:00 +03:00
Mihai Bazon
e48db3a8b6 Make reserved names take priority over the name cache 2015-05-07 15:01:16 +03:00
Mihai Bazon
e637bdaf4e Only drop the BOM when it's the first character. 
Close #704
 2015-05-05 10:11:38 +03:00
Mihai Bazon
4aed0830e5 Fix blank lines in the output. 
The issue was more obvious when max_line_len has a small value, rather than
the default 32K characters.  A blank line showed up after most statements.
 2015-05-04 17:55:42 +03:00
Mihai Bazon
c3a10c135e Avoid spurious brackets when dropping unused vars 
Fix #702
 2015-05-04 14:49:17 +03:00
Mihai Bazon
92e4340732 Fix parsing strings with literal DOS newlines 
(should not set newline_before)

Fix #693
 2015-04-23 12:08:19 +03:00
Mihai Bazon
7b22f2031f If name_cache is specified, do rename cached properties 
(even if --mangle-props is not there)
 2015-04-22 17:34:49 +03:00
Mihai Bazon
274e1b3dc7 Drop NaN -> 0/0 transformation. 
Fix #687
 2015-04-17 11:26:36 +03:00
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
e04ef56243 Use the before visitor in mangle props 
(works around a bug in our tree walker which, while cloning nodes, breaks
references between labeled statements and break/continue labels)
 2015-04-10 11:33:29 +03:00
Mihai Bazon
a79ff060d0 Merge branch 'propmangle' 2015-03-29 12:50:43 +03:00
Mihai Bazon
276b9a31cd Fix compressing ![foo()]; as a statement 
need to check whether the literal has any side effects before replacing that
with `false`.
 2015-03-23 23:27:00 +02:00
Mihai Bazon
5801fa39e9 [sequencesize] Actually even better: 
do create the sequence even if the stat list is bigger than 2000 statements,
but limit the sequence itself to 2000 expressions.

Ref #414
 2015-03-22 13:02:45 +02:00
Mihai Bazon
f0ab1b02e6 Avoid sequencesize for more than 2000 statements. 
It hardly saves any bytes for a sequence so long, and it risks blowing the
stack with the recursive Seq functions.

Ref #414
 2015-03-22 12:51:15 +02:00
Mihai Bazon
36c28e02fd Add start/end nodes for NaN/Infinity transformations 2015-03-22 12:50:36 +02:00
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
Mihai Bazon
80d1c8206b Fix parsing for U+2028 / U+2029 
(they should be treated as whitespace)
 2015-03-18 10:11:37 +02:00
Mihai Bazon
d36faffeca Fix parsing for U+2028 / U+2029 
(they should be treated as whitespace)
 2015-03-18 10:09:30 +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
Mihai Bazon
0c80d21e01 Fix prop mangling 
Even if not “defined”, do mangle if name exists in the cache.
 2015-03-16 10:53:31 +02:00
Mihai Bazon
ea3430102c Add property name mangler 
We only touch properties that are present in an object literal, or which are
assigned to.  Example:

    x = { foo: 1 };
    x.bar = 2;
    x["baz"] = 3;
    x[cond ? "qwe" : "asd"] = 4;
    console.log(x.stuff);

The names "foo", "bar", "baz", "qwe" and "asd" will be mangled, and the
resulting mangled names will be used for the same properties throughout the
code.  The "stuff" will not be, since it's just referenced but never
assigned to.

This *will* break most of the code out there, but could work on carefully
written code: do not use eval, do not define methods or properties by
walking an array of names, etc.  Also, a comprehensive list of exclusions
needs to be passed, to avoid mangling properties that are standard in
JavaScript, DOM, used in external libraries etc.
 2015-03-14 11:22:28 +02:00
Edward Casbon
ae07714927 Add filename to the JS_Parse_Error exception. 
It would be nice to have access to the filename of the file that includes the code that causes a JavaScript error. This is especially handy if uglifying multiple files at once.

Only a small change is needed for this to happen as it's already available in the function that throws the error.
 2015-02-11 23:21:22 +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
fbbaa42ee5 Add option to preserve/enforce string quote style 
`-q 0` (default) use single or double quotes such as to minimize the number of
 bytes (prefers double quotes when both will do); this is the previous
 behavior.

`-q 1` -- always use single quotes

`-q 2` -- always use double quotes

`-q 3` or just `-q` -- always use the original quotes.

Related codegen option: `quote_style`.

Close #495
Close #460

Some `yargs` guru please tell me why `uglifyjs --help` doesn't display the
help string for `-q` / `--quotes`, and why it doesn't output the expected
argument types anymore, like good old `optimist` did.
 2015-01-27 22:26:27 +02:00
Anthony Van de Gejuchte
099992ecae Keep single line comments after nlb, after nlb 
Fixes #583
 2015-01-26 12:11:52 +01:00
Bryce Cronkite-Ratcliff
5c02d65ddb fixes issue #621 SourceMap toString JSON format 
The correct format of a sourcemap is acquired
from a mozilla source map generator by calling
toJSON on this object. This patch alters the
toString function on mozilla generators to print
the format that is to spec instead of the generator's
internal representation of itself.
 2015-01-24 00:33:02 -08:00
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
74cda80d3b Add unicode digit parsing support 2015-01-20 00:17:24 +01:00
Anthony Van de Gejuchte
9a3a848cc8 Update unicode letter 2015-01-20 00:17:03 +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
Mihai Bazon
61c233a08e Fix make_node_from_constant for Regexp-s 
Close #588
 2015-01-07 11:20:04 +02:00
Mihai Bazon
d2d716483a aborts(AST_If) returns the if node 
Previously it returned the abort node from the alternative branch.  This is
not much use as it can be different from the one in the body
branch (i.e. return vs. throw) and can trick us into issues like #591.

Fix #591
 2015-01-06 14:01:35 +02:00
Ingvar Stepanyan
f16033aafd Location fix for Mozilla AST start token. 2015-01-06 11:32:41 +01:00
Ingvar Stepanyan
ae5366a31d Track ending lines/columns; fix end locations in Mozilla AST. 2015-01-06 11:32:41 +01:00
Mihai Bazon
6b23cbc852 AST_Do nodes: walk body before condition 2015-01-06 12:29:07 +02:00
Mihai Bazon
13219cebcb Fix handling \r\n 
Close #437
 2015-01-05 12:14:42 +02:00
Mihai Bazon
e1f0747e4c Support keep_fnames in compressor, and --keep-fnames. #552 
Passing `--keep-fnames` will enable it both for compressor/mangler, so that
function names will not be dropped (when unused) nor mangled.
 2015-01-05 11:03:13 +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
Caridy Patino
ad18689d92 using the original sourcemap as the base 
* Creates a new SourceMapGenerator based on a SourceMapConsumer:
  https://github.com/mozilla/source-map#sourcemapgeneratorfromsourcemapsourcemapconsumer
 2015-01-04 21:08:29 +01:00
Richard van Velzen
24bc09b79b Fix #556 
`\uFEFF` (ZERO WIDTH NO-BREAK SPACE) is removed when parsing, but was
un-escaped for the output when `ascii_only` was false.

When using
UglifyJS multiple times (creating packages from minified sources, for
example), this would lead to problems because the byte was removed when
parsing for the second time.
 2015-01-04 15:01:55 +01:00
Richard van Velzen
37c17d5541 Merge pull request #570 from rvanvelzen/fix-569 
Fix #569
 2015-01-04 14:02:08 +01:00
Richard van Velzen
120948fa48 Merge pull request #584 from clyfish/fix-base54 
fix base54
 2015-01-04 14:00:23 +01:00
Richard van Velzen
66e6f0c3cb Merge pull request #592 from micschro/patch-1 
Fix max_line_len not working for JSON files
 2015-01-04 13:53:31 +01:00
Richard van Velzen
f4d36a58c2 Fix #569 
When no arguments are given to `new Function()`, it should be treated as
a regular anonymous function (http://es5.github.io/#x15.3.2.1)
 2015-01-04 13:37:59 +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
micschro
39d8880f2c Fix max_line_len not working for JSON files 
As `maybe_newline()` is only called when `might_need_semicolon` is `true`, the `max_line_len` option has no effect for files without (or with very few) semicolons (like JSON files). A simple for this problem is to use `maybe_newline()` instead of `noop` as the `newline()` function in non-beautify mode.
 2014-12-17 16:31:03 +01:00
Mihai Bazon
f101d6429b Merge pull request #546 from jacobk/patch-1 
Use uglify source map token names if missing
 2014-12-04 14:07:08 +02:00
Cheng Liangyu
fe06fc85d3 fix base54 2014-12-01 13:16:44 +08:00
Mihai Bazon
f36a1eaa8b Add option to allow return outside of functions. 
Close #288
 2014-10-20 18:12:13 +03:00
Mihai Bazon
01d19b4b52 Referencing a global is assumed to have side effects. 
Close #550
 2014-09-28 11:18:25 +03:00
Arnavion
7be680d3f8 Don't warn for an unreferenced exception symbol in a catch block. 2014-09-12 21:01:19 -07:00
Jacob Kristhammar
21b3c890a1 Use uglify source map token names if missing 2014-09-09 13:02:50 +02:00
Tal Ater
fb0ec720a4 Compress conditions that have side effects using sequences 2014-09-04 02:57:49 +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
Mihai Bazon
4c64554808 Turn foo.new into foo["new"] when not --screw-ie8. Fix #534 2014-08-26 10:11:01 +03:00
Mihai Bazon
548beeb6b1 Prevent error for Function(""). Close #538 2014-08-20 09:16:34 +03:00
Ingvar Stepanyan
b467a3c877 Added generative testing for AST conversions. 2014-08-03 20:48:59 +03:00
Ingvar Stepanyan
5e314bf3e9 SpiderMonkey Identifier nodes should contain mangled names. 2014-08-03 01:28:58 +03:00
Ingvar Stepanyan
05ba26c7c8 Small fixes for AST conversion. 2014-08-02 13:18:27 +03:00
Ingvar Stepanyan
87b72364a4 Fixes and improvements for UglifyJS->SM AST conversion. 
* Explicitly forbidden multiple catch clauses as SM-specific feature.
* Simplified describing of UglifyJS->Mozilla AST conversion rules.
* Moved alias rules to single place.
* Removed usage of dynamic type bindings in generated code (speed-up).
 2014-08-01 23:45:37 +03:00
Ingvar Stepanyan
0e3ff1f970 Improved UglifyJS<->SpiderMonkey AST conversions. 
* Added directives recognition in SM AST.
* Moved semi-standard SM `Property` type to separate handler.
* Added `const` recognition from SM AST.
* Removed redundant `this`-as-identifier recognition.
* Removed redundant rules for abstract SM types.
* Described `CatchClause` using string syntax.
* Added support for semi-standard `range` tuple as location source.
* Added back-conversion support (to be improved).
 2014-08-01 23:42:34 +03:00
Mihai Bazon
62bda71c85 Fix parens for AST_Undefined 
Do the same as for AST_Unary, since we output undefined as `void 0`.

Reported at https://github.com/mishoo/UglifyJS2/issues/338#issuecomment-48858341
 2014-07-18 11:31:41 +03:00
Mihai Bazon
ac2caf1088 Check for the case an AST_For's init is an EmptyStatement 
(lame fix for #503)
 2014-07-01 23:10:44 +03:00
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
7bf59b5bcd Actually, even better. #475 
- also handle x = + ++y, x = - --y;
- don't use parens, a space suffices.
 2014-04-27 21:42:14 +03:00
Mihai Bazon
025f3e9596 Better fix for #475 2014-04-27 20:54:54 +03:00
Mihai Bazon
8258edd8a5 Fix parens in +(+x). Close #475 2014-04-27 20:51:01 +03:00
Mihai Bazon
71652690b6 Merge pull request #445 from ConradIrwin/try-statement 
Handle TryStatements trees from acorn >=0.2.0
 2014-04-24 10:46:53 +03:00
Mihai Bazon
8fbe200012 Always quote property names that contain non-ASCII characters. 
Fix #328
 2014-04-18 10:48:44 +03:00
Arnavion
e2e09d5754 Allow colons in the pairs passed to AST_Toplevel.wrap_enclose 2014-03-22 18:02:21 -07:00
Conrad Irwin
514936beb8 Handle TryStatements trees from acorn >=0.2.0 2014-03-06 17:07:49 -08:00
Arnavion
014f655c5f Handle the case when SourceMapConsumer.originalPositionFor returns null source. 
This happens when SourceMapConsumer does not have a valid position to map the input line and column. This is a change in mozilla/source-map starting from version 0.1.33

Fixes #436
 2014-03-02 19:20:19 -08:00
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
ef2ef07cbd Add option keep_fargs. 
By default it's `false`.  Pass `true` if you need to keep unused function
arguments.

Close #188.
 2014-02-08 12:33:56 +02:00
Matt Basta
ac0086a745 Simplify nested conditionals if possible 2014-02-06 12:39:13 -08:00
Mihai Bazon
5344b7dab8 Fix if_return dropping the alternative. Close #413 2014-01-31 10:44:13 +02:00
Mihai Bazon
e29048b54a Merge branch 'master' of github.com:mishoo/UglifyJS2 2014-01-26 10:07:10 +02:00
Mihai Bazon
ceb200fe81 Move unescaping regexps under a codegen option (unescape_regexps) 2014-01-26 10:05:55 +02:00
Daniel Stutzman
f5f8239057 Don't unescape \x00 in regexes (it breaks IE8) 2014-01-25 11:55:39 -07:00
Mihai Bazon
931862e97f More chars that cannot be unescaped in regexps. 2014-01-21 11:44:00 +02:00
Mihai Bazon
1d0127de21 Fix end token for conditionals. Close #404 2014-01-21 10:38:59 +02:00
Ville Lautanala
1e31011874 Don't unescape byte order marks in regexps 2014-01-19 12:27:03 +02:00
Mihai Bazon
4339bd5cfa Don't unescape \x2f (slash) in regexps. #54 2014-01-18 12:31:50 +02:00
Mihai Bazon
90a330da16 simplify 2014-01-10 10:36:15 +02:00
Mihai Bazon
cad1f9cbd1 Unescape Unicode sequences in regexps when ascii_only is false. #54 2014-01-10 10:33:58 +02:00
Mihai Bazon
c3087dd179 Better process_for_angular before other statement reductions. #395 2014-01-08 11:39:24 +02:00
Mihai Bazon
2c305af478 Support @ngInject with angular compressor option. Close #395. 2014-01-08 11:28:32 +02:00
Mihai Bazon
2c88eb6fbe doh. 2014-01-07 12:54:14 +02:00
Mihai Bazon
27142df4f5 minor: exp["10"] => exp[10] 2014-01-07 12:48:21 +02:00
Mihai Bazon
5e4c7f4245 Fix parens for property access -- (foo, bar)["baz"] 2014-01-05 11:48:01 +02:00
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
aa9de76370 Mark yield as reserved word. Close #375. 2013-12-22 20:52:19 +02:00
Mihai Bazon
5a083a938d Optimize seq,void 0. Close #377. 
(x, void 0)    => void x
    (x, undefined) => void x
 2013-12-22 11:36:45 +02:00
Mihai Bazon
7a30d826b8 Better fix for comments in AST_Exit 
Close #374
 2013-12-18 15:54:12 +02:00
Mihai Bazon
be55a09edf Take out all comments from an AST_Exit's value 
Fix #372
 2013-12-18 13:30:26 +02:00
Mihai Bazon
428e19fed2 Add option to adjust the src/target line in the source map 2013-12-18 12:10:02 +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
bd0886a2c0 semicolons 2013-12-10 20:24:27 +02:00
Mihai Bazon
248f304f02 Merge pull request #245 from ForbesLindesay/patch-1 
Make `DefaultsError` a real `Error` object
 2013-12-10 10:23:29 -08:00
Mihai Bazon
dc5f70eab5 Add drop_console option to the compressor 2013-12-10 19:44:41 +02:00
Mihai Bazon
df8c5623af minor 2013-12-10 19:39:03 +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
d2190c2bf3 Properly scope catch identifier when --screw-ie8 
Fix #344
 2013-11-28 16:43:30 +02:00
Mihai Bazon
c16d538ce7 Add --noerr to turn off argument name checking 
for now only used for keys passed to `-c` or `-b`.
 2013-11-28 13:15:01 +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
7d11b96f48 Only descend twice after drop_unused if it's the same node type. 
Fix #345
 2013-11-08 11:57:17 +02:00