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#+TITLE: UglifyJS -- a JavaScript parser/compressor/beautifier
|
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#+KEYWORDS: javascript, js, parser, compiler, compressor, mangle, minify, minifier
|
||||
#+DESCRIPTION: a JavaScript parser/compressor/beautifier in JavaScript
|
||||
#+STYLE: <link rel="stylesheet" type="text/css" href="docstyle.css" />
|
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#+AUTHOR: Mihai Bazon
|
||||
#+EMAIL: mihai.bazon@gmail.com
|
||||
|
||||
* UglifyJS --- a JavaScript parser/compressor/beautifier
|
||||
|
||||
This package implements a general-purpose JavaScript
|
||||
parser/compressor/beautifier toolkit. It is developed on [[http://nodejs.org/][NodeJS]], but it
|
||||
should work on any JavaScript platform supporting the CommonJS module system
|
||||
(and if your platform of choice doesn't support CommonJS, you can easily
|
||||
implement it, or discard the =exports.*= lines from UglifyJS sources).
|
||||
|
||||
The tokenizer/parser generates an abstract syntax tree from JS code. You
|
||||
can then traverse the AST to learn more about the code, or do various
|
||||
manipulations on it. This part is implemented in [[../lib/parse-js.js][parse-js.js]] and it's a
|
||||
port to JavaScript of the excellent [[http://marijn.haverbeke.nl/parse-js/][parse-js]] Common Lisp library from [[http://marijn.haverbeke.nl/][Marijn
|
||||
Haverbeke]].
|
||||
|
||||
( See [[http://github.com/mishoo/cl-uglify-js][cl-uglify-js]] if you're looking for the Common Lisp version of
|
||||
UglifyJS. )
|
||||
|
||||
The second part of this package, implemented in [[../lib/process.js][process.js]], inspects and
|
||||
manipulates the AST generated by the parser to provide the following:
|
||||
|
||||
- ability to re-generate JavaScript code from the AST. Optionally
|
||||
indented---you can use this if you want to “beautify” a program that has
|
||||
been compressed, so that you can inspect the source. But you can also run
|
||||
our code generator to print out an AST without any whitespace, so you
|
||||
achieve compression as well.
|
||||
|
||||
- shorten variable names (usually to single characters). Our mangler will
|
||||
analyze the code and generate proper variable names, depending on scope
|
||||
and usage, and is smart enough to deal with globals defined elsewhere, or
|
||||
with =eval()= calls or =with{}= statements. In short, if =eval()= or
|
||||
=with{}= are used in some scope, then all variables in that scope and any
|
||||
variables in the parent scopes will remain unmangled, and any references
|
||||
to such variables remain unmangled as well.
|
||||
|
||||
- various small optimizations that may lead to faster code but certainly
|
||||
lead to smaller code. Where possible, we do the following:
|
||||
|
||||
- foo["bar"] ==> foo.bar
|
||||
|
||||
- remove block brackets ={}=
|
||||
|
||||
- join consecutive var declarations:
|
||||
var a = 10; var b = 20; ==> var a=10,b=20;
|
||||
|
||||
- resolve simple constant expressions: 1 +2 * 3 ==> 7. We only do the
|
||||
replacement if the result occupies less bytes; for example 1/3 would
|
||||
translate to 0.333333333333, so in this case we don't replace it.
|
||||
|
||||
- consecutive statements in blocks are merged into a sequence; in many
|
||||
cases, this leaves blocks with a single statement, so then we can remove
|
||||
the block brackets.
|
||||
|
||||
- various optimizations for IF statements:
|
||||
|
||||
- if (foo) bar(); else baz(); ==> foo?bar():baz();
|
||||
- if (!foo) bar(); else baz(); ==> foo?baz():bar();
|
||||
- if (foo) bar(); ==> foo&&bar();
|
||||
- if (!foo) bar(); ==> foo||bar();
|
||||
- if (foo) return bar(); else return baz(); ==> return foo?bar():baz();
|
||||
- if (foo) return bar(); else something(); ==> {if(foo)return bar();something()}
|
||||
|
||||
- remove some unreachable code and warn about it (code that follows a
|
||||
=return=, =throw=, =break= or =continue= statement, except
|
||||
function/variable declarations).
|
||||
|
||||
- act a limited version of a pre-processor (c.f. the pre-processor of
|
||||
C/C++) to allow you to safely replace selected global symbols with
|
||||
specified values. When combined with the optimisations above this can
|
||||
make UglifyJS operate slightly more like a compilation process, in
|
||||
that when certain symbols are replaced by constant values, entire code
|
||||
blocks may be optimised away as unreachable.
|
||||
|
||||
** <<Unsafe transformations>>
|
||||
|
||||
The following transformations can in theory break code, although they're
|
||||
probably safe in most practical cases. To enable them you need to pass the
|
||||
=--unsafe= flag.
|
||||
|
||||
*** Calls involving the global Array constructor
|
||||
|
||||
The following transformations occur:
|
||||
|
||||
#+BEGIN_SRC js
|
||||
new Array(1, 2, 3, 4) => [1,2,3,4]
|
||||
Array(a, b, c) => [a,b,c]
|
||||
new Array(5) => Array(5)
|
||||
new Array(a) => Array(a)
|
||||
#+END_SRC
|
||||
|
||||
These are all safe if the Array name isn't redefined. JavaScript does allow
|
||||
one to globally redefine Array (and pretty much everything, in fact) but I
|
||||
personally don't see why would anyone do that.
|
||||
|
||||
UglifyJS does handle the case where Array is redefined locally, or even
|
||||
globally but with a =function= or =var= declaration. Therefore, in the
|
||||
following cases UglifyJS *doesn't touch* calls or instantiations of Array:
|
||||
|
||||
#+BEGIN_SRC js
|
||||
// case 1. globally declared variable
|
||||
var Array;
|
||||
new Array(1, 2, 3);
|
||||
Array(a, b);
|
||||
|
||||
// or (can be declared later)
|
||||
new Array(1, 2, 3);
|
||||
var Array;
|
||||
|
||||
// or (can be a function)
|
||||
new Array(1, 2, 3);
|
||||
function Array() { ... }
|
||||
|
||||
// case 2. declared in a function
|
||||
(function(){
|
||||
a = new Array(1, 2, 3);
|
||||
b = Array(5, 6);
|
||||
var Array;
|
||||
})();
|
||||
|
||||
// or
|
||||
(function(Array){
|
||||
return Array(5, 6, 7);
|
||||
})();
|
||||
|
||||
// or
|
||||
(function(){
|
||||
return new Array(1, 2, 3, 4);
|
||||
function Array() { ... }
|
||||
})();
|
||||
|
||||
// etc.
|
||||
#+END_SRC
|
||||
|
||||
*** =obj.toString()= ==> =obj+“”=
|
||||
|
||||
** Install (NPM)
|
||||
|
||||
UglifyJS is now available through NPM --- =npm install uglify-js= should do
|
||||
the job.
|
||||
|
||||
** Install latest code from GitHub
|
||||
|
||||
#+BEGIN_SRC sh
|
||||
## clone the repository
|
||||
mkdir -p /where/you/wanna/put/it
|
||||
cd /where/you/wanna/put/it
|
||||
git clone git://github.com/mishoo/UglifyJS.git
|
||||
|
||||
## make the module available to Node
|
||||
mkdir -p ~/.node_libraries/
|
||||
cd ~/.node_libraries/
|
||||
ln -s /where/you/wanna/put/it/UglifyJS/uglify-js.js
|
||||
|
||||
## and if you want the CLI script too:
|
||||
mkdir -p ~/bin
|
||||
cd ~/bin
|
||||
ln -s /where/you/wanna/put/it/UglifyJS/bin/uglifyjs
|
||||
# (then add ~/bin to your $PATH if it's not there already)
|
||||
#+END_SRC
|
||||
|
||||
** Usage
|
||||
|
||||
There is a command-line tool that exposes the functionality of this library
|
||||
for your shell-scripting needs:
|
||||
|
||||
#+BEGIN_SRC sh
|
||||
uglifyjs [ options... ] [ filename ]
|
||||
#+END_SRC
|
||||
|
||||
=filename= should be the last argument and should name the file from which
|
||||
to read the JavaScript code. If you don't specify it, it will read code
|
||||
from STDIN.
|
||||
|
||||
Supported options:
|
||||
|
||||
- =-b= or =--beautify= --- output indented code; when passed, additional
|
||||
options control the beautifier:
|
||||
|
||||
- =-i N= or =--indent N= --- indentation level (number of spaces)
|
||||
|
||||
- =-q= or =--quote-keys= --- quote keys in literal objects (by default,
|
||||
only keys that cannot be identifier names will be quotes).
|
||||
|
||||
- =--ascii= --- pass this argument to encode non-ASCII characters as
|
||||
=\uXXXX= sequences. By default UglifyJS won't bother to do it and will
|
||||
output Unicode characters instead. (the output is always encoded in UTF8,
|
||||
but if you pass this option you'll only get ASCII).
|
||||
|
||||
- =-nm= or =--no-mangle= --- don't mangle variable names
|
||||
|
||||
- =-ns= or =--no-squeeze= --- don't call =ast_squeeze()= (which does various
|
||||
optimizations that result in smaller, less readable code).
|
||||
|
||||
- =-mt= or =--mangle-toplevel= --- mangle names in the toplevel scope too
|
||||
(by default we don't do this).
|
||||
|
||||
- =--no-seqs= --- when =ast_squeeze()= is called (thus, unless you pass
|
||||
=--no-squeeze=) it will reduce consecutive statements in blocks into a
|
||||
sequence. For example, "a = 10; b = 20; foo();" will be written as
|
||||
"a=10,b=20,foo();". In various occasions, this allows us to discard the
|
||||
block brackets (since the block becomes a single statement). This is ON
|
||||
by default because it seems safe and saves a few hundred bytes on some
|
||||
libs that I tested it on, but pass =--no-seqs= to disable it.
|
||||
|
||||
- =--no-dead-code= --- by default, UglifyJS will remove code that is
|
||||
obviously unreachable (code that follows a =return=, =throw=, =break= or
|
||||
=continue= statement and is not a function/variable declaration). Pass
|
||||
this option to disable this optimization.
|
||||
|
||||
- =-nc= or =--no-copyright= --- by default, =uglifyjs= will keep the initial
|
||||
comment tokens in the generated code (assumed to be copyright information
|
||||
etc.). If you pass this it will discard it.
|
||||
|
||||
- =-o filename= or =--output filename= --- put the result in =filename=. If
|
||||
this isn't given, the result goes to standard output (or see next one).
|
||||
|
||||
- =--overwrite= --- if the code is read from a file (not from STDIN) and you
|
||||
pass =--overwrite= then the output will be written in the same file.
|
||||
|
||||
- =--ast= --- pass this if you want to get the Abstract Syntax Tree instead
|
||||
of JavaScript as output. Useful for debugging or learning more about the
|
||||
internals.
|
||||
|
||||
- =-v= or =--verbose= --- output some notes on STDERR (for now just how long
|
||||
each operation takes).
|
||||
|
||||
- =-d SYMBOL[=VALUE]= or =--define SYMBOL[=VALUE]= --- will replace
|
||||
all instances of the specified symbol where used as an identifier
|
||||
(except where symbol has properly declared by a var declaration or
|
||||
use as function parameter or similar) with the specified value. This
|
||||
argument may be specified multiple times to define multiple
|
||||
symbols - if no value is specified the symbol will be replaced with
|
||||
the value =true=, or you can specify a numeric value (such as
|
||||
=1024=), a quoted string value (such as ="object"= or
|
||||
='https://github.com'=), or the name of another symbol or keyword
|
||||
(such as =null= or =document=).
|
||||
This allows you, for example, to assign meaningful names to key
|
||||
constant values but discard the symbolic names in the uglified
|
||||
version for brevity/efficiency, or when used wth care, allows
|
||||
UglifyJS to operate as a form of *conditional compilation*
|
||||
whereby defining appropriate values may, by dint of the constant
|
||||
folding and dead code removal features above, remove entire
|
||||
superfluous code blocks (e.g. completely remove instrumentation or
|
||||
trace code for production use).
|
||||
Where string values are being defined, the handling of quotes are
|
||||
likely to be subject to the specifics of your command shell
|
||||
environment, so you may need to experiment with quoting styles
|
||||
depending on your platform, or you may find the option
|
||||
=--define-from-module= more suitable for use.
|
||||
|
||||
- =-define-from-module SOMEMODULE= --- will load the named module (as
|
||||
per the NodeJS =require()= function) and iterate all the exported
|
||||
properties of the module defining them as symbol names to be defined
|
||||
(as if by the =--define= option) per the name of each property
|
||||
(i.e. without the module name prefix) and given the value of the
|
||||
property. This is a much easier way to handle and document groups of
|
||||
symbols to be defined rather than a large number of =--define=
|
||||
options.
|
||||
|
||||
- =--unsafe= --- enable other additional optimizations that are known to be
|
||||
unsafe in some contrived situations, but could still be generally useful.
|
||||
For now only these:
|
||||
|
||||
- foo.toString() ==> foo+""
|
||||
- new Array(x,...) ==> [x,...]
|
||||
- new Array(x) ==> Array(x)
|
||||
|
||||
- =--max-line-len= (default 32K characters) --- add a newline after around
|
||||
32K characters. I've seen both FF and Chrome croak when all the code was
|
||||
on a single line of around 670K. Pass --max-line-len 0 to disable this
|
||||
safety feature.
|
||||
|
||||
- =--reserved-names= --- some libraries rely on certain names to be used, as
|
||||
pointed out in issue #92 and #81, so this option allow you to exclude such
|
||||
names from the mangler. For example, to keep names =require= and =$super=
|
||||
intact you'd specify --reserved-names "require,$super".
|
||||
|
||||
- =--inline-script= -- when you want to include the output literally in an
|
||||
HTML =<script>= tag you can use this option to prevent =</script= from
|
||||
showing up in the output.
|
||||
|
||||
- =--lift-vars= -- when you pass this, UglifyJS will apply the following
|
||||
transformations (see the notes in API, =ast_lift_variables=):
|
||||
|
||||
- put all =var= declarations at the start of the scope
|
||||
- make sure a variable is declared only once
|
||||
- discard unused function arguments
|
||||
- discard unused inner (named) functions
|
||||
- finally, try to merge assignments into that one =var= declaration, if
|
||||
possible.
|
||||
|
||||
*** API
|
||||
|
||||
To use the library from JavaScript, you'd do the following (example for
|
||||
NodeJS):
|
||||
|
||||
#+BEGIN_SRC js
|
||||
var jsp = require("uglify-js").parser;
|
||||
var pro = require("uglify-js").uglify;
|
||||
|
||||
var orig_code = "... JS code here";
|
||||
var ast = jsp.parse(orig_code); // parse code and get the initial AST
|
||||
ast = pro.ast_mangle(ast); // get a new AST with mangled names
|
||||
ast = pro.ast_squeeze(ast); // get an AST with compression optimizations
|
||||
var final_code = pro.gen_code(ast); // compressed code here
|
||||
#+END_SRC
|
||||
|
||||
The above performs the full compression that is possible right now. As you
|
||||
can see, there are a sequence of steps which you can apply. For example if
|
||||
you want compressed output but for some reason you don't want to mangle
|
||||
variable names, you would simply skip the line that calls
|
||||
=pro.ast_mangle(ast)=.
|
||||
|
||||
Some of these functions take optional arguments. Here's a description:
|
||||
|
||||
- =jsp.parse(code, strict_semicolons)= -- parses JS code and returns an AST.
|
||||
=strict_semicolons= is optional and defaults to =false=. If you pass
|
||||
=true= then the parser will throw an error when it expects a semicolon and
|
||||
it doesn't find it. For most JS code you don't want that, but it's useful
|
||||
if you want to strictly sanitize your code.
|
||||
|
||||
- =pro.ast_lift_variables(ast)= -- merge and move =var= declarations to the
|
||||
scop of the scope; discard unused function arguments or variables; discard
|
||||
unused (named) inner functions. It also tries to merge assignments
|
||||
following the =var= declaration into it.
|
||||
|
||||
If your code is very hand-optimized concerning =var= declarations, this
|
||||
lifting variable declarations might actually increase size. For me it
|
||||
helps out. On jQuery it adds 865 bytes (243 after gzip). YMMV. Also
|
||||
note that (since it's not enabled by default) this operation isn't yet
|
||||
heavily tested (please report if you find issues!).
|
||||
|
||||
Note that although it might increase the image size (on jQuery it gains
|
||||
865 bytes, 243 after gzip) it's technically more correct: in certain
|
||||
situations, dead code removal might drop variable declarations, which
|
||||
would not happen if the variables are lifted in advance.
|
||||
|
||||
Here's an example of what it does:
|
||||
|
||||
#+BEGIN_SRC js
|
||||
function f(a, b, c, d, e) {
|
||||
var q;
|
||||
var w;
|
||||
w = 10;
|
||||
q = 20;
|
||||
for (var i = 1; i < 10; ++i) {
|
||||
var boo = foo(a);
|
||||
}
|
||||
for (var i = 0; i < 1; ++i) {
|
||||
var boo = bar(c);
|
||||
}
|
||||
function foo(){ ... }
|
||||
function bar(){ ... }
|
||||
function baz(){ ... }
|
||||
}
|
||||
|
||||
// transforms into ==>
|
||||
|
||||
function f(a, b, c) {
|
||||
var i, boo, w = 10, q = 20;
|
||||
for (i = 1; i < 10; ++i) {
|
||||
boo = foo(a);
|
||||
}
|
||||
for (i = 0; i < 1; ++i) {
|
||||
boo = bar(c);
|
||||
}
|
||||
function foo() { ... }
|
||||
function bar() { ... }
|
||||
}
|
||||
#+END_SRC
|
||||
|
||||
- =pro.ast_mangle(ast, options)= -- generates a new AST containing mangled
|
||||
(compressed) variable and function names. It supports the following
|
||||
options:
|
||||
|
||||
- =toplevel= -- mangle toplevel names (by default we don't touch them).
|
||||
- =except= -- an array of names to exclude from compression.
|
||||
- =defines= -- an object with properties named after symbols to
|
||||
replace (see the =--define= option for the script) and the values
|
||||
representing the AST replacement value.
|
||||
|
||||
- =pro.ast_squeeze(ast, options)= -- employs further optimizations designed
|
||||
to reduce the size of the code that =gen_code= would generate from the
|
||||
AST. Returns a new AST. =options= can be a hash; the supported options
|
||||
are:
|
||||
|
||||
- =make_seqs= (default true) which will cause consecutive statements in a
|
||||
block to be merged using the "sequence" (comma) operator
|
||||
|
||||
- =dead_code= (default true) which will remove unreachable code.
|
||||
|
||||
- =pro.gen_code(ast, options)= -- generates JS code from the AST. By
|
||||
default it's minified, but using the =options= argument you can get nicely
|
||||
formatted output. =options= is, well, optional :-) and if you pass it it
|
||||
must be an object and supports the following properties (below you can see
|
||||
the default values):
|
||||
|
||||
- =beautify: false= -- pass =true= if you want indented output
|
||||
- =indent_start: 0= (only applies when =beautify= is =true=) -- initial
|
||||
indentation in spaces
|
||||
- =indent_level: 4= (only applies when =beautify= is =true=) --
|
||||
indentation level, in spaces (pass an even number)
|
||||
- =quote_keys: false= -- if you pass =true= it will quote all keys in
|
||||
literal objects
|
||||
- =space_colon: false= (only applies when =beautify= is =true=) -- wether
|
||||
to put a space before the colon in object literals
|
||||
- =ascii_only: false= -- pass =true= if you want to encode non-ASCII
|
||||
characters as =\uXXXX=.
|
||||
- =inline_script: false= -- pass =true= to escape occurrences of
|
||||
=</script= in strings
|
||||
|
||||
*** Beautifier shortcoming -- no more comments
|
||||
|
||||
The beautifier can be used as a general purpose indentation tool. It's
|
||||
useful when you want to make a minified file readable. One limitation,
|
||||
though, is that it discards all comments, so you don't really want to use it
|
||||
to reformat your code, unless you don't have, or don't care about, comments.
|
||||
|
||||
In fact it's not the beautifier who discards comments --- they are dumped at
|
||||
the parsing stage, when we build the initial AST. Comments don't really
|
||||
make sense in the AST, and while we could add nodes for them, it would be
|
||||
inconvenient because we'd have to add special rules to ignore them at all
|
||||
the processing stages.
|
||||
|
||||
*** Use as a code pre-processor
|
||||
|
||||
The =--define= option can be used, particularly when combined with the
|
||||
constant folding logic, as a form of pre-processor to enable or remove
|
||||
particular constructions, such as might be used for instrumenting
|
||||
development code, or to produce variations aimed at a specific
|
||||
platform.
|
||||
|
||||
The code below illustrates the way this can be done, and how the
|
||||
symbol replacement is performed.
|
||||
|
||||
#+BEGIN_SRC js
|
||||
CLAUSE1: if (typeof DEVMODE === 'undefined') {
|
||||
DEVMODE = true;
|
||||
}
|
||||
|
||||
CLAUSE2: function init() {
|
||||
if (DEVMODE) {
|
||||
console.log("init() called");
|
||||
}
|
||||
....
|
||||
DEVMODE && console.log("init() complete");
|
||||
}
|
||||
|
||||
CLAUSE3: function reportDeviceStatus(device) {
|
||||
var DEVMODE = device.mode, DEVNAME = device.name;
|
||||
if (DEVMODE === 'open') {
|
||||
....
|
||||
}
|
||||
}
|
||||
#+END_SRC
|
||||
|
||||
When the above code is normally executed, the undeclared global
|
||||
variable =DEVMODE= will be assigned the value *true* (see =CLAUSE1=)
|
||||
and so the =init()= function (=CLAUSE2=) will write messages to the
|
||||
console log when executed, but in =CLAUSE3= a locally declared
|
||||
variable will mask access to the =DEVMODE= global symbol.
|
||||
|
||||
If the above code is processed by UglifyJS with an argument of
|
||||
=--define DEVMODE=false= then UglifyJS will replace =DEVMODE= with the
|
||||
boolean constant value *false* within =CLAUSE1= and =CLAUSE2=, but it
|
||||
will leave =CLAUSE3= as it stands because there =DEVMODE= resolves to
|
||||
a validly declared variable.
|
||||
|
||||
And more so, the constant-folding features of UglifyJS will recognise
|
||||
that the =if= condition of =CLAUSE1= is thus always false, and so will
|
||||
remove the test and body of =CLAUSE1= altogether (including the
|
||||
otherwise slightly problematical statement =false = true;= which it
|
||||
will have formed by replacing =DEVMODE= in the body). Similarly,
|
||||
within =CLAUSE2= both calls to =console.log()= will be removed
|
||||
altogether.
|
||||
|
||||
In this way you can mimic, to a limited degree, the functionality of
|
||||
the C/C++ pre-processor to enable or completely remove blocks
|
||||
depending on how certain symbols are defined - perhaps using UglifyJS
|
||||
to generate different versions of source aimed at different
|
||||
environments
|
||||
|
||||
It is recommmended (but not made mandatory) that symbols designed for
|
||||
this purpose are given names consisting of =UPPER_CASE_LETTERS= to
|
||||
distinguish them from other (normal) symbols and avoid the sort of
|
||||
clash that =CLAUSE3= above illustrates.
|
||||
|
||||
** Compression -- how good is it?
|
||||
|
||||
Here are updated statistics. (I also updated my Google Closure and YUI
|
||||
installations).
|
||||
|
||||
We're still a lot better than YUI in terms of compression, though slightly
|
||||
slower. We're still a lot faster than Closure, and compression after gzip
|
||||
is comparable.
|
||||
|
||||
| File | UglifyJS | UglifyJS+gzip | Closure | Closure+gzip | YUI | YUI+gzip |
|
||||
|-----------------------------+------------------+---------------+------------------+--------------+------------------+----------|
|
||||
| jquery-1.6.2.js | 91001 (0:01.59) | 31896 | 90678 (0:07.40) | 31979 | 101527 (0:01.82) | 34646 |
|
||||
| paper.js | 142023 (0:01.65) | 43334 | 134301 (0:07.42) | 42495 | 173383 (0:01.58) | 48785 |
|
||||
| prototype.js | 88544 (0:01.09) | 26680 | 86955 (0:06.97) | 26326 | 92130 (0:00.79) | 28624 |
|
||||
| thelib-full.js (DynarchLIB) | 251939 (0:02.55) | 72535 | 249911 (0:09.05) | 72696 | 258869 (0:01.94) | 76584 |
|
||||
|
||||
** Bugs?
|
||||
|
||||
Unfortunately, for the time being there is no automated test suite. But I
|
||||
ran the compressor manually on non-trivial code, and then I tested that the
|
||||
generated code works as expected. A few hundred times.
|
||||
|
||||
DynarchLIB was started in times when there was no good JS minifier.
|
||||
Therefore I was quite religious about trying to write short code manually,
|
||||
and as such DL contains a lot of syntactic hacks[1] such as “foo == bar ? a
|
||||
= 10 : b = 20”, though the more readable version would clearly be to use
|
||||
“if/else”.
|
||||
|
||||
Since the parser/compressor runs fine on DL and jQuery, I'm quite confident
|
||||
that it's solid enough for production use. If you can identify any bugs,
|
||||
I'd love to hear about them ([[http://groups.google.com/group/uglifyjs][use the Google Group]] or email me directly).
|
||||
|
||||
[1] I even reported a few bugs and suggested some fixes in the original
|
||||
[[http://marijn.haverbeke.nl/parse-js/][parse-js]] library, and Marijn pushed fixes literally in minutes.
|
||||
|
||||
** Links
|
||||
|
||||
- Twitter: [[http://twitter.com/UglifyJS][@UglifyJS]]
|
||||
- Project at GitHub: [[http://github.com/mishoo/UglifyJS][http://github.com/mishoo/UglifyJS]]
|
||||
- Google Group: [[http://groups.google.com/group/uglifyjs][http://groups.google.com/group/uglifyjs]]
|
||||
- Common Lisp JS parser: [[http://marijn.haverbeke.nl/parse-js/][http://marijn.haverbeke.nl/parse-js/]]
|
||||
- JS-to-Lisp compiler: [[http://github.com/marijnh/js][http://github.com/marijnh/js]]
|
||||
- Common Lisp JS uglifier: [[http://github.com/mishoo/cl-uglify-js][http://github.com/mishoo/cl-uglify-js]]
|
||||
|
||||
** License
|
||||
|
||||
UglifyJS is released under the BSD license:
|
||||
|
||||
#+BEGIN_EXAMPLE
|
||||
Copyright 2010 (c) Mihai Bazon <mihai.bazon@gmail.com>
|
||||
Based on parse-js (http://marijn.haverbeke.nl/parse-js/).
|
||||
|
||||
Redistribution and use in source and binary forms, with or without
|
||||
modification, are permitted provided that the following conditions
|
||||
are met:
|
||||
|
||||
* Redistributions of source code must retain the above
|
||||
copyright notice, this list of conditions and the following
|
||||
disclaimer.
|
||||
|
||||
* Redistributions in binary form must reproduce the above
|
||||
copyright notice, this list of conditions and the following
|
||||
disclaimer in the documentation and/or other materials
|
||||
provided with the distribution.
|
||||
|
||||
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY
|
||||
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE
|
||||
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
|
||||
OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
||||
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
||||
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
|
||||
TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
|
||||
THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
SUCH DAMAGE.
|
||||
#+END_EXAMPLE
|
317
node_modules/uglify-js/bin/uglifyjs
generated
vendored
Executable file
317
node_modules/uglify-js/bin/uglifyjs
generated
vendored
Executable file
|
@ -0,0 +1,317 @@
|
|||
#! /usr/bin/env node
|
||||
// -*- js -*-
|
||||
|
||||
global.sys = require(/^v0\.[012]/.test(process.version) ? "sys" : "util");
|
||||
var fs = require("fs");
|
||||
var uglify = require("uglify-js"), // symlink ~/.node_libraries/uglify-js.js to ../uglify-js.js
|
||||
jsp = uglify.parser,
|
||||
pro = uglify.uglify;
|
||||
|
||||
var options = {
|
||||
ast: false,
|
||||
mangle: true,
|
||||
mangle_toplevel: false,
|
||||
squeeze: true,
|
||||
make_seqs: true,
|
||||
dead_code: true,
|
||||
verbose: false,
|
||||
show_copyright: true,
|
||||
out_same_file: false,
|
||||
max_line_length: 32 * 1024,
|
||||
unsafe: false,
|
||||
reserved_names: null,
|
||||
defines: { },
|
||||
lift_vars: false,
|
||||
codegen_options: {
|
||||
ascii_only: false,
|
||||
beautify: false,
|
||||
indent_level: 4,
|
||||
indent_start: 0,
|
||||
quote_keys: false,
|
||||
space_colon: false,
|
||||
inline_script: false
|
||||
},
|
||||
make: false,
|
||||
output: true // stdout
|
||||
};
|
||||
|
||||
var args = jsp.slice(process.argv, 2);
|
||||
var filename;
|
||||
|
||||
out: while (args.length > 0) {
|
||||
var v = args.shift();
|
||||
switch (v) {
|
||||
case "-b":
|
||||
case "--beautify":
|
||||
options.codegen_options.beautify = true;
|
||||
break;
|
||||
case "-i":
|
||||
case "--indent":
|
||||
options.codegen_options.indent_level = args.shift();
|
||||
break;
|
||||
case "-q":
|
||||
case "--quote-keys":
|
||||
options.codegen_options.quote_keys = true;
|
||||
break;
|
||||
case "-mt":
|
||||
case "--mangle-toplevel":
|
||||
options.mangle_toplevel = true;
|
||||
break;
|
||||
case "--no-mangle":
|
||||
case "-nm":
|
||||
options.mangle = false;
|
||||
break;
|
||||
case "--no-squeeze":
|
||||
case "-ns":
|
||||
options.squeeze = false;
|
||||
break;
|
||||
case "--no-seqs":
|
||||
options.make_seqs = false;
|
||||
break;
|
||||
case "--no-dead-code":
|
||||
options.dead_code = false;
|
||||
break;
|
||||
case "--no-copyright":
|
||||
case "-nc":
|
||||
options.show_copyright = false;
|
||||
break;
|
||||
case "-o":
|
||||
case "--output":
|
||||
options.output = args.shift();
|
||||
break;
|
||||
case "--overwrite":
|
||||
options.out_same_file = true;
|
||||
break;
|
||||
case "-v":
|
||||
case "--verbose":
|
||||
options.verbose = true;
|
||||
break;
|
||||
case "--ast":
|
||||
options.ast = true;
|
||||
break;
|
||||
case "--unsafe":
|
||||
options.unsafe = true;
|
||||
break;
|
||||
case "--max-line-len":
|
||||
options.max_line_length = parseInt(args.shift(), 10);
|
||||
break;
|
||||
case "--reserved-names":
|
||||
options.reserved_names = args.shift().split(",");
|
||||
break;
|
||||
case "--lift-vars":
|
||||
options.lift_vars = true;
|
||||
break;
|
||||
case "-d":
|
||||
case "--define":
|
||||
var defarg = args.shift();
|
||||
try {
|
||||
var defsym = function(sym) {
|
||||
// KEYWORDS_ATOM doesn't include NaN or Infinity - should we check
|
||||
// for them too ?? We don't check reserved words and the like as the
|
||||
// define values are only substituted AFTER parsing
|
||||
if (jsp.KEYWORDS_ATOM.hasOwnProperty(sym)) {
|
||||
throw "Don't define values for inbuilt constant '"+sym+"'";
|
||||
}
|
||||
return sym;
|
||||
},
|
||||
defval = function(v) {
|
||||
if (v.match(/^"(.*)"$/) || v.match(/^'(.*)'$/)) {
|
||||
return [ "string", RegExp.$1 ];
|
||||
}
|
||||
else if (!isNaN(parseFloat(v))) {
|
||||
return [ "num", parseFloat(v) ];
|
||||
}
|
||||
else if (v.match(/^[a-z\$_][a-z\$_0-9]*$/i)) {
|
||||
return [ "name", v ];
|
||||
}
|
||||
else if (!v.match(/"/)) {
|
||||
return [ "string", v ];
|
||||
}
|
||||
else if (!v.match(/'/)) {
|
||||
return [ "string", v ];
|
||||
}
|
||||
throw "Can't understand the specified value: "+v;
|
||||
};
|
||||
if (defarg.match(/^([a-z_\$][a-z_\$0-9]*)(=(.*))?$/i)) {
|
||||
var sym = defsym(RegExp.$1),
|
||||
val = RegExp.$2 ? defval(RegExp.$2.substr(1)) : [ 'name', 'true' ];
|
||||
options.defines[sym] = val;
|
||||
}
|
||||
else {
|
||||
throw "The --define option expects SYMBOL[=value]";
|
||||
}
|
||||
} catch(ex) {
|
||||
sys.print("ERROR: In option --define "+defarg+"\n"+ex+"\n");
|
||||
process.exit(1);
|
||||
}
|
||||
break;
|
||||
case "--define-from-module":
|
||||
var defmodarg = args.shift(),
|
||||
defmodule = require(defmodarg),
|
||||
sym,
|
||||
val;
|
||||
for (sym in defmodule) {
|
||||
if (defmodule.hasOwnProperty(sym)) {
|
||||
options.defines[sym] = function(val) {
|
||||
if (typeof val == "string")
|
||||
return [ "string", val ];
|
||||
if (typeof val == "number")
|
||||
return [ "num", val ];
|
||||
if (val === true)
|
||||
return [ 'name', 'true' ];
|
||||
if (val === false)
|
||||
return [ 'name', 'false' ];
|
||||
if (val === null)
|
||||
return [ 'name', 'null' ];
|
||||
if (val === undefined)
|
||||
return [ 'name', 'undefined' ];
|
||||
sys.print("ERROR: In option --define-from-module "+defmodarg+"\n");
|
||||
sys.print("ERROR: Unknown object type for: "+sym+"="+val+"\n");
|
||||
process.exit(1);
|
||||
return null;
|
||||
}(defmodule[sym]);
|
||||
}
|
||||
}
|
||||
break;
|
||||
case "--ascii":
|
||||
options.codegen_options.ascii_only = true;
|
||||
break;
|
||||
case "--make":
|
||||
options.make = true;
|
||||
break;
|
||||
case "--inline-script":
|
||||
options.codegen_options.inline_script = true;
|
||||
break;
|
||||
default:
|
||||
filename = v;
|
||||
break out;
|
||||
}
|
||||
}
|
||||
|
||||
if (options.verbose) {
|
||||
pro.set_logger(function(msg){
|
||||
sys.debug(msg);
|
||||
});
|
||||
}
|
||||
|
||||
jsp.set_logger(function(msg){
|
||||
sys.debug(msg);
|
||||
});
|
||||
|
||||
if (options.make) {
|
||||
options.out_same_file = false; // doesn't make sense in this case
|
||||
var makefile = JSON.parse(fs.readFileSync(filename || "Makefile.uglify.js").toString());
|
||||
output(makefile.files.map(function(file){
|
||||
var code = fs.readFileSync(file.name);
|
||||
if (file.module) {
|
||||
code = "!function(exports, global){global = this;\n" + code + "\n;this." + file.module + " = exports;}({})";
|
||||
}
|
||||
else if (file.hide) {
|
||||
code = "(function(){" + code + "}());";
|
||||
}
|
||||
return squeeze_it(code);
|
||||
}).join("\n"));
|
||||
}
|
||||
else if (filename) {
|
||||
fs.readFile(filename, "utf8", function(err, text){
|
||||
if (err) throw err;
|
||||
output(squeeze_it(text));
|
||||
});
|
||||
}
|
||||
else {
|
||||
var stdin = process.openStdin();
|
||||
stdin.setEncoding("utf8");
|
||||
var text = "";
|
||||
stdin.on("data", function(chunk){
|
||||
text += chunk;
|
||||
});
|
||||
stdin.on("end", function() {
|
||||
output(squeeze_it(text));
|
||||
});
|
||||
}
|
||||
|
||||
function output(text) {
|
||||
var out;
|
||||
if (options.out_same_file && filename)
|
||||
options.output = filename;
|
||||
if (options.output === true) {
|
||||
out = process.stdout;
|
||||
} else {
|
||||
out = fs.createWriteStream(options.output, {
|
||||
flags: "w",
|
||||
encoding: "utf8",
|
||||
mode: 0644
|
||||
});
|
||||
}
|
||||
out.write(text + ";");
|
||||
if (options.output !== true) {
|
||||
out.end();
|
||||
}
|
||||
};
|
||||
|
||||
// --------- main ends here.
|
||||
|
||||
function show_copyright(comments) {
|
||||
var ret = "";
|
||||
for (var i = 0; i < comments.length; ++i) {
|
||||
var c = comments[i];
|
||||
if (c.type == "comment1") {
|
||||
ret += "//" + c.value + "\n";
|
||||
} else {
|
||||
ret += "/*" + c.value + "*/";
|
||||
}
|
||||
}
|
||||
return ret;
|
||||
};
|
||||
|
||||
function squeeze_it(code) {
|
||||
var result = "";
|
||||
if (options.show_copyright) {
|
||||
var tok = jsp.tokenizer(code), c;
|
||||
c = tok();
|
||||
result += show_copyright(c.comments_before);
|
||||
}
|
||||
try {
|
||||
var ast = time_it("parse", function(){ return jsp.parse(code); });
|
||||
if (options.lift_vars) {
|
||||
ast = time_it("lift", function(){ return pro.ast_lift_variables(ast); });
|
||||
}
|
||||
if (options.mangle) ast = time_it("mangle", function(){
|
||||
return pro.ast_mangle(ast, {
|
||||
toplevel: options.mangle_toplevel,
|
||||
defines: options.defines,
|
||||
except: options.reserved_names
|
||||
});
|
||||
});
|
||||
if (options.squeeze) ast = time_it("squeeze", function(){
|
||||
ast = pro.ast_squeeze(ast, {
|
||||
make_seqs : options.make_seqs,
|
||||
dead_code : options.dead_code,
|
||||
keep_comps : !options.unsafe
|
||||
});
|
||||
if (options.unsafe)
|
||||
ast = pro.ast_squeeze_more(ast);
|
||||
return ast;
|
||||
});
|
||||
if (options.ast)
|
||||
return sys.inspect(ast, null, null);
|
||||
result += time_it("generate", function(){ return pro.gen_code(ast, options.codegen_options) });
|
||||
if (!options.codegen_options.beautify && options.max_line_length) {
|
||||
result = time_it("split", function(){ return pro.split_lines(result, options.max_line_length) });
|
||||
}
|
||||
return result;
|
||||
} catch(ex) {
|
||||
sys.debug(ex.stack);
|
||||
sys.debug(sys.inspect(ex));
|
||||
sys.debug(JSON.stringify(ex));
|
||||
process.exit(1);
|
||||
}
|
||||
};
|
||||
|
||||
function time_it(name, cont) {
|
||||
if (!options.verbose)
|
||||
return cont();
|
||||
var t1 = new Date().getTime();
|
||||
try { return cont(); }
|
||||
finally { sys.debug("// " + name + ": " + ((new Date().getTime() - t1) / 1000).toFixed(3) + " sec."); }
|
||||
};
|
75
node_modules/uglify-js/docstyle.css
generated
vendored
Normal file
75
node_modules/uglify-js/docstyle.css
generated
vendored
Normal file
|
@ -0,0 +1,75 @@
|
|||
html { font-family: "Lucida Grande","Trebuchet MS",sans-serif; font-size: 12pt; }
|
||||
body { max-width: 60em; }
|
||||
.title { text-align: center; }
|
||||
.todo { color: red; }
|
||||
.done { color: green; }
|
||||
.tag { background-color:lightblue; font-weight:normal }
|
||||
.target { }
|
||||
.timestamp { color: grey }
|
||||
.timestamp-kwd { color: CadetBlue }
|
||||
p.verse { margin-left: 3% }
|
||||
pre {
|
||||
border: 1pt solid #AEBDCC;
|
||||
background-color: #F3F5F7;
|
||||
padding: 5pt;
|
||||
font-family: monospace;
|
||||
font-size: 90%;
|
||||
overflow:auto;
|
||||
}
|
||||
pre.src {
|
||||
background-color: #eee; color: #112; border: 1px solid #000;
|
||||
}
|
||||
table { border-collapse: collapse; }
|
||||
td, th { vertical-align: top; }
|
||||
dt { font-weight: bold; }
|
||||
div.figure { padding: 0.5em; }
|
||||
div.figure p { text-align: center; }
|
||||
.linenr { font-size:smaller }
|
||||
.code-highlighted {background-color:#ffff00;}
|
||||
.org-info-js_info-navigation { border-style:none; }
|
||||
#org-info-js_console-label { font-size:10px; font-weight:bold;
|
||||
white-space:nowrap; }
|
||||
.org-info-js_search-highlight {background-color:#ffff00; color:#000000;
|
||||
font-weight:bold; }
|
||||
|
||||
sup {
|
||||
vertical-align: baseline;
|
||||
position: relative;
|
||||
top: -0.5em;
|
||||
font-size: 80%;
|
||||
}
|
||||
|
||||
sup a:link, sup a:visited {
|
||||
text-decoration: none;
|
||||
color: #c00;
|
||||
}
|
||||
|
||||
sup a:before { content: "["; color: #999; }
|
||||
sup a:after { content: "]"; color: #999; }
|
||||
|
||||
h1.title { border-bottom: 4px solid #000; padding-bottom: 5px; margin-bottom: 2em; }
|
||||
|
||||
#postamble {
|
||||
color: #777;
|
||||
font-size: 90%;
|
||||
padding-top: 1em; padding-bottom: 1em; border-top: 1px solid #999;
|
||||
margin-top: 2em;
|
||||
padding-left: 2em;
|
||||
padding-right: 2em;
|
||||
text-align: right;
|
||||
}
|
||||
|
||||
#postamble p { margin: 0; }
|
||||
|
||||
#footnotes { border-top: 1px solid #000; }
|
||||
|
||||
h1 { font-size: 200% }
|
||||
h2 { font-size: 175% }
|
||||
h3 { font-size: 150% }
|
||||
h4 { font-size: 125% }
|
||||
|
||||
h1, h2, h3, h4 { font-family: "Bookman",Georgia,"Times New Roman",serif; font-weight: normal; }
|
||||
|
||||
@media print {
|
||||
html { font-size: 11pt; }
|
||||
}
|
75
node_modules/uglify-js/lib/object-ast.js
generated
vendored
Normal file
75
node_modules/uglify-js/lib/object-ast.js
generated
vendored
Normal file
|
@ -0,0 +1,75 @@
|
|||
var jsp = require("./parse-js"),
|
||||
pro = require("./process");
|
||||
|
||||
var BY_TYPE = {};
|
||||
|
||||
function HOP(obj, prop) {
|
||||
return Object.prototype.hasOwnProperty.call(obj, prop);
|
||||
};
|
||||
|
||||
function AST_Node(parent) {
|
||||
this.parent = parent;
|
||||
};
|
||||
|
||||
AST_Node.prototype.init = function(){};
|
||||
|
||||
function DEFINE_NODE_CLASS(type, props, methods) {
|
||||
var base = methods && methods.BASE || AST_Node;
|
||||
if (!base) base = AST_Node;
|
||||
function D(parent, data) {
|
||||
base.apply(this, arguments);
|
||||
if (props) props.forEach(function(name, i){
|
||||
this["_" + name] = data[i];
|
||||
});
|
||||
this.init();
|
||||
};
|
||||
var P = D.prototype = new AST_Node;
|
||||
P.node_type = function(){ return type };
|
||||
if (props) props.forEach(function(name){
|
||||
var propname = "_" + name;
|
||||
P["set_" + name] = function(val) {
|
||||
this[propname] = val;
|
||||
return this;
|
||||
};
|
||||
P["get_" + name] = function() {
|
||||
return this[propname];
|
||||
};
|
||||
});
|
||||
if (type != null) BY_TYPE[type] = D;
|
||||
if (methods) for (var i in methods) if (HOP(methods, i)) {
|
||||
P[i] = methods[i];
|
||||
}
|
||||
return D;
|
||||
};
|
||||
|
||||
var AST_String_Node = DEFINE_NODE_CLASS("string", ["value"]);
|
||||
var AST_Number_Node = DEFINE_NODE_CLASS("num", ["value"]);
|
||||
var AST_Name_Node = DEFINE_NODE_CLASS("name", ["value"]);
|
||||
|
||||
var AST_Statlist_Node = DEFINE_NODE_CLASS(null, ["body"]);
|
||||
var AST_Root_Node = DEFINE_NODE_CLASS("toplevel", null, { BASE: AST_Statlist_Node });
|
||||
var AST_Block_Node = DEFINE_NODE_CLASS("block", null, { BASE: AST_Statlist_Node });
|
||||
var AST_Splice_Node = DEFINE_NODE_CLASS("splice", null, { BASE: AST_Statlist_Node });
|
||||
|
||||
var AST_Var_Node = DEFINE_NODE_CLASS("var", ["definitions"]);
|
||||
var AST_Const_Node = DEFINE_NODE_CLASS("const", ["definitions"]);
|
||||
|
||||
var AST_Try_Node = DEFINE_NODE_CLASS("try", ["body", "catch", "finally"]);
|
||||
var AST_Throw_Node = DEFINE_NODE_CLASS("throw", ["exception"]);
|
||||
|
||||
var AST_New_Node = DEFINE_NODE_CLASS("new", ["constructor", "arguments"]);
|
||||
|
||||
var AST_Switch_Node = DEFINE_NODE_CLASS("switch", ["expression", "branches"]);
|
||||
var AST_Switch_Branch_Node = DEFINE_NODE_CLASS(null, ["expression", "body"]);
|
||||
|
||||
var AST_Break_Node = DEFINE_NODE_CLASS("break", ["label"]);
|
||||
var AST_Continue_Node = DEFINE_NODE_CLASS("continue", ["label"]);
|
||||
var AST_Assign_Node = DEFINE_NODE_CLASS("assign", ["operator", "lvalue", "rvalue"]);
|
||||
var AST_Dot_Node = DEFINE_NODE_CLASS("dot", ["expression", "name"]);
|
||||
var AST_Call_Node = DEFINE_NODE_CLASS("call", ["function", "arguments"]);
|
||||
|
||||
var AST_Lambda_Node = DEFINE_NODE_CLASS(null, ["name", "arguments", "body"])
|
||||
var AST_Function_Node = DEFINE_NODE_CLASS("function", null, AST_Lambda_Node);
|
||||
var AST_Defun_Node = DEFINE_NODE_CLASS("defun", null, AST_Lambda_Node);
|
||||
|
||||
var AST_If_Node = DEFINE_NODE_CLASS("if", ["condition", "then", "else"]);
|
1339
node_modules/uglify-js/lib/parse-js.js
generated
vendored
Normal file
1339
node_modules/uglify-js/lib/parse-js.js
generated
vendored
Normal file
File diff suppressed because it is too large
Load diff
2001
node_modules/uglify-js/lib/process.js
generated
vendored
Normal file
2001
node_modules/uglify-js/lib/process.js
generated
vendored
Normal file
File diff suppressed because it is too large
Load diff
51
node_modules/uglify-js/lib/squeeze-more.js
generated
vendored
Normal file
51
node_modules/uglify-js/lib/squeeze-more.js
generated
vendored
Normal file
|
@ -0,0 +1,51 @@
|
|||
var jsp = require("./parse-js"),
|
||||
pro = require("./process"),
|
||||
slice = jsp.slice,
|
||||
member = jsp.member,
|
||||
curry = jsp.curry,
|
||||
MAP = pro.MAP,
|
||||
PRECEDENCE = jsp.PRECEDENCE,
|
||||
OPERATORS = jsp.OPERATORS;
|
||||
|
||||
function ast_squeeze_more(ast) {
|
||||
var w = pro.ast_walker(), walk = w.walk, scope;
|
||||
function with_scope(s, cont) {
|
||||
var save = scope, ret;
|
||||
scope = s;
|
||||
ret = cont();
|
||||
scope = save;
|
||||
return ret;
|
||||
};
|
||||
function _lambda(name, args, body) {
|
||||
return [ this[0], name, args, with_scope(body.scope, curry(MAP, body, walk)) ];
|
||||
};
|
||||
return w.with_walkers({
|
||||
"toplevel": function(body) {
|
||||
return [ this[0], with_scope(this.scope, curry(MAP, body, walk)) ];
|
||||
},
|
||||
"function": _lambda,
|
||||
"defun": _lambda,
|
||||
"new": function(ctor, args) {
|
||||
if (ctor[0] == "name" && ctor[1] == "Array" && !scope.has("Array")) {
|
||||
if (args.length != 1) {
|
||||
return [ "array", args ];
|
||||
} else {
|
||||
return walk([ "call", [ "name", "Array" ], args ]);
|
||||
}
|
||||
}
|
||||
},
|
||||
"call": function(expr, args) {
|
||||
if (expr[0] == "dot" && expr[2] == "toString" && args.length == 0) {
|
||||
// foo.toString() ==> foo+""
|
||||
return [ "binary", "+", expr[1], [ "string", "" ]];
|
||||
}
|
||||
if (expr[0] == "name" && expr[1] == "Array" && args.length != 1 && !scope.has("Array")) {
|
||||
return [ "array", args ];
|
||||
}
|
||||
}
|
||||
}, function() {
|
||||
return walk(pro.ast_add_scope(ast));
|
||||
});
|
||||
};
|
||||
|
||||
exports.ast_squeeze_more = ast_squeeze_more;
|
24
node_modules/uglify-js/package.json
generated
vendored
Normal file
24
node_modules/uglify-js/package.json
generated
vendored
Normal file
|
@ -0,0 +1,24 @@
|
|||
{
|
||||
"name" : "uglify-js",
|
||||
|
||||
"description" : "JavaScript parser and compressor/beautifier toolkit",
|
||||
|
||||
"author" : {
|
||||
"name" : "Mihai Bazon",
|
||||
"email" : "mihai.bazon@gmail.com",
|
||||
"url" : "http://mihai.bazon.net/blog"
|
||||
},
|
||||
|
||||
"version" : "1.1.1",
|
||||
|
||||
"main" : "./uglify-js.js",
|
||||
|
||||
"bin" : {
|
||||
"uglifyjs" : "./bin/uglifyjs"
|
||||
},
|
||||
|
||||
"repository": {
|
||||
"type": "git",
|
||||
"url": "git@github.com:mishoo/UglifyJS.git"
|
||||
}
|
||||
}
|
24
node_modules/uglify-js/package.json~
generated
vendored
Normal file
24
node_modules/uglify-js/package.json~
generated
vendored
Normal file
|
@ -0,0 +1,24 @@
|
|||
{
|
||||
"name" : "uglify-js",
|
||||
|
||||
"description" : "JavaScript parser and compressor/beautifier toolkit",
|
||||
|
||||
"author" : {
|
||||
"name" : "Mihai Bazon",
|
||||
"email" : "mihai.bazon@gmail.com",
|
||||
"url" : "http://mihai.bazon.net/blog"
|
||||
},
|
||||
|
||||
"version" : "1.1.0",
|
||||
|
||||
"main" : "./uglify-js.js",
|
||||
|
||||
"bin" : {
|
||||
"uglifyjs" : "./bin/uglifyjs"
|
||||
},
|
||||
|
||||
"repository": {
|
||||
"type": "git",
|
||||
"url": "git@github.com:mishoo/UglifyJS.git"
|
||||
}
|
||||
}
|
28
node_modules/uglify-js/test/beautify.js
generated
vendored
Executable file
28
node_modules/uglify-js/test/beautify.js
generated
vendored
Executable file
|
@ -0,0 +1,28 @@
|
|||
#! /usr/bin/env node
|
||||
|
||||
global.sys = require("sys");
|
||||
var fs = require("fs");
|
||||
|
||||
var jsp = require("../lib/parse-js");
|
||||
var pro = require("../lib/process");
|
||||
|
||||
var filename = process.argv[2];
|
||||
fs.readFile(filename, "utf8", function(err, text){
|
||||
try {
|
||||
var ast = time_it("parse", function(){ return jsp.parse(text); });
|
||||
ast = time_it("mangle", function(){ return pro.ast_mangle(ast); });
|
||||
ast = time_it("squeeze", function(){ return pro.ast_squeeze(ast); });
|
||||
var gen = time_it("generate", function(){ return pro.gen_code(ast, false); });
|
||||
sys.puts(gen);
|
||||
} catch(ex) {
|
||||
sys.debug(ex.stack);
|
||||
sys.debug(sys.inspect(ex));
|
||||
sys.debug(JSON.stringify(ex));
|
||||
}
|
||||
});
|
||||
|
||||
function time_it(name, cont) {
|
||||
var t1 = new Date().getTime();
|
||||
try { return cont(); }
|
||||
finally { sys.debug("// " + name + ": " + ((new Date().getTime() - t1) / 1000).toFixed(3) + " sec."); }
|
||||
};
|
403
node_modules/uglify-js/test/testparser.js
generated
vendored
Executable file
403
node_modules/uglify-js/test/testparser.js
generated
vendored
Executable file
|
@ -0,0 +1,403 @@
|
|||
#! /usr/bin/env node
|
||||
|
||||
var parseJS = require("../lib/parse-js");
|
||||
var sys = require("sys");
|
||||
|
||||
// write debug in a very straightforward manner
|
||||
var debug = function(){
|
||||
sys.log(Array.prototype.slice.call(arguments).join(', '));
|
||||
};
|
||||
|
||||
ParserTestSuite(function(i, input, desc){
|
||||
try {
|
||||
parseJS.parse(input);
|
||||
debug("ok " + i + ": " + desc);
|
||||
} catch(e){
|
||||
debug("FAIL " + i + " " + desc + " (" + e + ")");
|
||||
}
|
||||
});
|
||||
|
||||
function ParserTestSuite(callback){
|
||||
var inps = [
|
||||
["var abc;", "Regular variable statement w/o assignment"],
|
||||
["var abc = 5;", "Regular variable statement with assignment"],
|
||||
["/* */;", "Multiline comment"],
|
||||
['/** **/;', 'Double star multiline comment'],
|
||||
["var f = function(){;};", "Function expression in var assignment"],
|
||||
['hi; // moo\n;', 'single line comment'],
|
||||
['var varwithfunction;', 'Dont match keywords as substrings'], // difference between `var withsomevar` and `"str"` (local search and lits)
|
||||
['a + b;', 'addition'],
|
||||
["'a';", 'single string literal'],
|
||||
["'a\\n';", 'single string literal with escaped return'],
|
||||
['"a";', 'double string literal'],
|
||||
['"a\\n";', 'double string literal with escaped return'],
|
||||
['"var";', 'string is a keyword'],
|
||||
['"variable";', 'string starts with a keyword'],
|
||||
['"somevariable";', 'string contains a keyword'],
|
||||
['"somevar";', 'string ends with a keyword'],
|
||||
['500;', 'int literal'],
|
||||
['500.;', 'float literal w/o decimals'],
|
||||
['500.432;', 'float literal with decimals'],
|
||||
['.432432;', 'float literal w/o int'],
|
||||
['(a,b,c);', 'parens and comma'],
|
||||
['[1,2,abc];', 'array literal'],
|
||||
['var o = {a:1};', 'object literal unquoted key'],
|
||||
['var o = {"b":2};', 'object literal quoted key'], // opening curly may not be at the start of a statement...
|
||||
['var o = {c:c};', 'object literal keyname is identifier'],
|
||||
['var o = {a:1,"b":2,c:c};', 'object literal combinations'],
|
||||
['var x;\nvar y;', 'two lines'],
|
||||
['var x;\nfunction n(){; }', 'function def'],
|
||||
['var x;\nfunction n(abc){; }', 'function def with arg'],
|
||||
['var x;\nfunction n(abc, def){ ;}', 'function def with args'],
|
||||
['function n(){ "hello"; }', 'function def with body'],
|
||||
['/a/;', 'regex literal'],
|
||||
['/a/b;', 'regex literal with flag'],
|
||||
['/a/ / /b/;', 'regex div regex'],
|
||||
['a/b/c;', 'triple division looks like regex'],
|
||||
['+function(){/regex/;};', 'regex at start of function body'],
|
||||
// http://code.google.com/p/es-lab/source/browse/trunk/tests/parser/parsertests.js?r=86
|
||||
// http://code.google.com/p/es-lab/source/browse/trunk/tests/parser/parsertests.js?r=430
|
||||
|
||||
// first tests for the lexer, should also parse as program (when you append a semi)
|
||||
|
||||
// comments
|
||||
['//foo!@#^&$1234\nbar;', 'single line comment'],
|
||||
['/* abcd!@#@$* { } && null*/;', 'single line multi line comment'],
|
||||
['/*foo\nbar*/;','multi line comment'],
|
||||
['/*x*x*/;','multi line comment with *'],
|
||||
['/**/;','empty comment'],
|
||||
// identifiers
|
||||
["x;",'1 identifier'],
|
||||
["_x;",'2 identifier'],
|
||||
["xyz;",'3 identifier'],
|
||||
["$x;",'4 identifier'],
|
||||
["x$;",'5 identifier'],
|
||||
["_;",'6 identifier'],
|
||||
["x5;",'7 identifier'],
|
||||
["x_y;",'8 identifier'],
|
||||
["x+5;",'9 identifier'],
|
||||
["xyz123;",'10 identifier'],
|
||||
["x1y1z1;",'11 identifier'],
|
||||
["foo\\u00D8bar;",'12 identifier unicode escape'],
|
||||
//["foo<6F>bar;",'13 identifier unicode embedded (might fail)'],
|
||||
// numbers
|
||||
["5;", '1 number'],
|
||||
["5.5;", '2 number'],
|
||||
["0;", '3 number'],
|
||||
["0.0;", '4 number'],
|
||||
["0.001;", '5 number'],
|
||||
["1.e2;", '6 number'],
|
||||
["1.e-2;", '7 number'],
|
||||
["1.E2;", '8 number'],
|
||||
["1.E-2;", '9 number'],
|
||||
[".5;", '10 number'],
|
||||
[".5e3;", '11 number'],
|
||||
[".5e-3;", '12 number'],
|
||||
["0.5e3;", '13 number'],
|
||||
["55;", '14 number'],
|
||||
["123;", '15 number'],
|
||||
["55.55;", '16 number'],
|
||||
["55.55e10;", '17 number'],
|
||||
["123.456;", '18 number'],
|
||||
["1+e;", '20 number'],
|
||||
["0x01;", '22 number'],
|
||||
["0XCAFE;", '23 number'],
|
||||
["0x12345678;", '24 number'],
|
||||
["0x1234ABCD;", '25 number'],
|
||||
["0x0001;", '26 number'],
|
||||
// strings
|
||||
["\"foo\";", '1 string'],
|
||||
["\'foo\';", '2 string'],
|
||||
["\"x\";", '3 string'],
|
||||
["\'\';", '4 string'],
|
||||
["\"foo\\tbar\";", '5 string'],
|
||||
["\"!@#$%^&*()_+{}[]\";", '6 string'],
|
||||
["\"/*test*/\";", '7 string'],
|
||||
["\"//test\";", '8 string'],
|
||||
["\"\\\\\";", '9 string'],
|
||||
["\"\\u0001\";", '10 string'],
|
||||
["\"\\uFEFF\";", '11 string'],
|
||||
["\"\\u10002\";", '12 string'],
|
||||
["\"\\x55\";", '13 string'],
|
||||
["\"\\x55a\";", '14 string'],
|
||||
["\"a\\\\nb\";", '15 string'],
|
||||
['";"', '16 string: semi in a string'],
|
||||
['"a\\\nb";', '17 string: line terminator escape'],
|
||||
// literals
|
||||
["null;", "null"],
|
||||
["true;", "true"],
|
||||
["false;", "false"],
|
||||
// regex
|
||||
["/a/;", "1 regex"],
|
||||
["/abc/;", "2 regex"],
|
||||
["/abc[a-z]*def/g;", "3 regex"],
|
||||
["/\\b/;", "4 regex"],
|
||||
["/[a-zA-Z]/;", "5 regex"],
|
||||
|
||||
// program tests (for as far as they havent been covered above)
|
||||
|
||||
// regexp
|
||||
["/foo(.*)/g;", "another regexp"],
|
||||
// arrays
|
||||
["[];", "1 array"],
|
||||
["[ ];", "2 array"],
|
||||
["[1];", "3 array"],
|
||||
["[1,2];", "4 array"],
|
||||
["[1,2,,];", "5 array"],
|
||||
["[1,2,3];", "6 array"],
|
||||
["[1,2,3,,,];", "7 array"],
|
||||
// objects
|
||||
["{};", "1 object"],
|
||||
["({x:5});", "2 object"],
|
||||
["({x:5,y:6});", "3 object"],
|
||||
["({x:5,});", "4 object"],
|
||||
["({if:5});", "5 object"],
|
||||
["({ get x() {42;} });", "6 object"],
|
||||
["({ set y(a) {1;} });", "7 object"],
|
||||
// member expression
|
||||
["o.m;", "1 member expression"],
|
||||
["o['m'];", "2 member expression"],
|
||||
["o['n']['m'];", "3 member expression"],
|
||||
["o.n.m;", "4 member expression"],
|
||||
["o.if;", "5 member expression"],
|
||||
// call and invoke expressions
|
||||
["f();", "1 call/invoke expression"],
|
||||
["f(x);", "2 call/invoke expression"],
|
||||
["f(x,y);", "3 call/invoke expression"],
|
||||
["o.m();", "4 call/invoke expression"],
|
||||
["o['m'];", "5 call/invoke expression"],
|
||||
["o.m(x);", "6 call/invoke expression"],
|
||||
["o['m'](x);", "7 call/invoke expression"],
|
||||
["o.m(x,y);", "8 call/invoke expression"],
|
||||
["o['m'](x,y);", "9 call/invoke expression"],
|
||||
["f(x)(y);", "10 call/invoke expression"],
|
||||
["f().x;", "11 call/invoke expression"],
|
||||
|
||||
// eval
|
||||
["eval('x');", "1 eval"],
|
||||
["(eval)('x');", "2 eval"],
|
||||
["(1,eval)('x');", "3 eval"],
|
||||
["eval(x,y);", "4 eval"],
|
||||
// new expression
|
||||
["new f();", "1 new expression"],
|
||||
["new o;", "2 new expression"],
|
||||
["new o.m;", "3 new expression"],
|
||||
["new o.m(x);", "4 new expression"],
|
||||
["new o.m(x,y);", "5 new expression"],
|
||||
// prefix/postfix
|
||||
["++x;", "1 pre/postfix"],
|
||||
["x++;", "2 pre/postfix"],
|
||||
["--x;", "3 pre/postfix"],
|
||||
["x--;", "4 pre/postfix"],
|
||||
["x ++;", "5 pre/postfix"],
|
||||
["x /* comment */ ++;", "6 pre/postfix"],
|
||||
["++ /* comment */ x;", "7 pre/postfix"],
|
||||
// unary operators
|
||||
["delete x;", "1 unary operator"],
|
||||
["void x;", "2 unary operator"],
|
||||
["+ x;", "3 unary operator"],
|
||||
["-x;", "4 unary operator"],
|
||||
["~x;", "5 unary operator"],
|
||||
["!x;", "6 unary operator"],
|
||||
// meh
|
||||
["new Date++;", "new date ++"],
|
||||
["+x++;", " + x ++"],
|
||||
// expression expressions
|
||||
["1 * 2;", "1 expression expressions"],
|
||||
["1 / 2;", "2 expression expressions"],
|
||||
["1 % 2;", "3 expression expressions"],
|
||||
["1 + 2;", "4 expression expressions"],
|
||||
["1 - 2;", "5 expression expressions"],
|
||||
["1 << 2;", "6 expression expressions"],
|
||||
["1 >>> 2;", "7 expression expressions"],
|
||||
["1 >> 2;", "8 expression expressions"],
|
||||
["1 * 2 + 3;", "9 expression expressions"],
|
||||
["(1+2)*3;", "10 expression expressions"],
|
||||
["1*(2+3);", "11 expression expressions"],
|
||||
["x<y;", "12 expression expressions"],
|
||||
["x>y;", "13 expression expressions"],
|
||||
["x<=y;", "14 expression expressions"],
|
||||
["x>=y;", "15 expression expressions"],
|
||||
["x instanceof y;", "16 expression expressions"],
|
||||
["x in y;", "17 expression expressions"],
|
||||
["x&y;", "18 expression expressions"],
|
||||
["x^y;", "19 expression expressions"],
|
||||
["x|y;", "20 expression expressions"],
|
||||
["x+y<z;", "21 expression expressions"],
|
||||
["x<y+z;", "22 expression expressions"],
|
||||
["x+y+z;", "23 expression expressions"],
|
||||
["x+y<z;", "24 expression expressions"],
|
||||
["x<y+z;", "25 expression expressions"],
|
||||
["x&y|z;", "26 expression expressions"],
|
||||
["x&&y;", "27 expression expressions"],
|
||||
["x||y;", "28 expression expressions"],
|
||||
["x&&y||z;", "29 expression expressions"],
|
||||
["x||y&&z;", "30 expression expressions"],
|
||||
["x<y?z:w;", "31 expression expressions"],
|
||||
// assignment
|
||||
["x >>>= y;", "1 assignment"],
|
||||
["x <<= y;", "2 assignment"],
|
||||
["x = y;", "3 assignment"],
|
||||
["x += y;", "4 assignment"],
|
||||
["x /= y;", "5 assignment"],
|
||||
// comma
|
||||
["x, y;", "comma"],
|
||||
// block
|
||||
["{};", "1 block"],
|
||||
["{x;};", "2 block"],
|
||||
["{x;y;};", "3 block"],
|
||||
// vars
|
||||
["var x;", "1 var"],
|
||||
["var x,y;", "2 var"],
|
||||
["var x=1,y=2;", "3 var"],
|
||||
["var x,y=2;", "4 var"],
|
||||
// empty
|
||||
[";", "1 empty"],
|
||||
["\n;", "2 empty"],
|
||||
// expression statement
|
||||
["x;", "1 expression statement"],
|
||||
["5;", "2 expression statement"],
|
||||
["1+2;", "3 expression statement"],
|
||||
// if
|
||||
["if (c) x; else y;", "1 if statement"],
|
||||
["if (c) x;", "2 if statement"],
|
||||
["if (c) {} else {};", "3 if statement"],
|
||||
["if (c1) if (c2) s1; else s2;", "4 if statement"],
|
||||
// while
|
||||
["do s; while (e);", "1 while statement"],
|
||||
["do { s; } while (e);", "2 while statement"],
|
||||
["while (e) s;", "3 while statement"],
|
||||
["while (e) { s; };", "4 while statement"],
|
||||
// for
|
||||
["for (;;) ;", "1 for statement"],
|
||||
["for (;c;x++) x;", "2 for statement"],
|
||||
["for (i;i<len;++i){};", "3 for statement"],
|
||||
["for (var i=0;i<len;++i) {};", "4 for statement"],
|
||||
["for (var i=0,j=0;;){};", "5 for statement"],
|
||||
//["for (x in b; c; u) {};", "6 for statement"],
|
||||
["for ((x in b); c; u) {};", "7 for statement"],
|
||||
["for (x in a);", "8 for statement"],
|
||||
["for (var x in a){};", "9 for statement"],
|
||||
["for (var x=5 in a) {};", "10 for statement"],
|
||||
["for (var x = a in b in c) {};", "11 for statement"],
|
||||
["for (var x=function(){a+b;}; a<b; ++i) some;", "11 for statement, testing for parsingForHeader reset with the function"],
|
||||
["for (var x=function(){for (x=0; x<15; ++x) alert(foo); }; a<b; ++i) some;", "11 for statement, testing for parsingForHeader reset with the function"],
|
||||
// flow statements
|
||||
["while(1){ continue; }", "1 flow statement"],
|
||||
["label: while(1){ continue label; }", "2 flow statement"],
|
||||
["while(1){ break; }", "3 flow statement"],
|
||||
["somewhere: while(1){ break somewhere; }", "4 flow statement"],
|
||||
["while(1){ continue /* comment */ ; }", "5 flow statement"],
|
||||
["while(1){ continue \n; }", "6 flow statement"],
|
||||
["(function(){ return; })()", "7 flow statement"],
|
||||
["(function(){ return 0; })()", "8 flow statement"],
|
||||
["(function(){ return 0 + \n 1; })()", "9 flow statement"],
|
||||
// with
|
||||
["with (e) s;", "with statement"],
|
||||
// switch
|
||||
["switch (e) { case x: s; };", "1 switch statement"],
|
||||
["switch (e) { case x: s1;s2; default: s3; case y: s4; };", "2 switch statement"],
|
||||
["switch (e) { default: s1; case x: s2; case y: s3; };", "3 switch statement"],
|
||||
["switch (e) { default: s; };", "4 switch statement"],
|
||||
["switch (e) { case x: s1; case y: s2; };", "5 switch statement"],
|
||||
// labels
|
||||
["foo : x;", " flow statement"],
|
||||
// throw
|
||||
["throw x;", "1 throw statement"],
|
||||
["throw x\n;", "2 throw statement"],
|
||||
// try catch finally
|
||||
["try { s1; } catch (e) { s2; };", "1 trycatchfinally statement"],
|
||||
["try { s1; } finally { s2; };", "2 trycatchfinally statement"],
|
||||
["try { s1; } catch (e) { s2; } finally { s3; };", "3 trycatchfinally statement"],
|
||||
// debugger
|
||||
["debugger;", "debuger statement"],
|
||||
// function decl
|
||||
["function f(x) { e; return x; };", "1 function declaration"],
|
||||
["function f() { x; y; };", "2 function declaration"],
|
||||
["function f(x,y) { var z; return x; };", "3 function declaration"],
|
||||
// function exp
|
||||
["(function f(x) { return x; });", "1 function expression"],
|
||||
["(function empty() {;});", "2 function expression"],
|
||||
["(function empty() {;});", "3 function expression"],
|
||||
["(function (x) {; });", "4 function expression"],
|
||||
// program
|
||||
["var x; function f(){;}; null;", "1 program"],
|
||||
[";;", "2 program"],
|
||||
["{ x; y; z; }", "3 program"],
|
||||
["function f(){ function g(){;}};", "4 program"],
|
||||
["x;\n/*foo*/\n ;", "5 program"],
|
||||
|
||||
// asi
|
||||
["foo: while(1){ continue \n foo; }", "1 asi"],
|
||||
["foo: while(1){ break \n foo; }", "2 asi"],
|
||||
["(function(){ return\nfoo; })()", "3 asi"],
|
||||
["var x; { 1 \n 2 } 3", "4 asi"],
|
||||
["ab /* hi */\ncd", "5 asi"],
|
||||
["ab/*\n*/cd", "6 asi (multi line multilinecomment counts as eol)"],
|
||||
["foo: while(1){ continue /* wtf \n busta */ foo; }", "7 asi illegal with multi line comment"],
|
||||
["function f() { s }", "8 asi"],
|
||||
["function f() { return }", "9 asi"],
|
||||
|
||||
// use strict
|
||||
// XXX: some of these should actually fail?
|
||||
// no support for "use strict" yet...
|
||||
['"use strict"; \'bla\'\n; foo;', "1 directive"],
|
||||
['(function() { "use strict"; \'bla\';\n foo; });', "2 directive"],
|
||||
['"use\\n strict";', "3 directive"],
|
||||
['foo; "use strict";', "4 directive"],
|
||||
|
||||
// tests from http://es5conform.codeplex.com/
|
||||
|
||||
['"use strict"; var o = { eval: 42};', "8.7.2-3-1-s: the use of eval as property name is allowed"],
|
||||
['({foo:0,foo:1});', 'Duplicate property name allowed in not strict mode'],
|
||||
['function foo(a,a){}', 'Duplicate parameter name allowed in not strict mode'],
|
||||
['(function foo(eval){})', 'Eval allowed as parameter name in non strict mode'],
|
||||
['(function foo(arguments){})', 'Arguments allowed as parameter name in non strict mode'],
|
||||
|
||||
// empty programs
|
||||
|
||||
['', '1 Empty program'],
|
||||
['// test', '2 Empty program'],
|
||||
['//test\n', '3 Empty program'],
|
||||
['\n// test', '4 Empty program'],
|
||||
['\n// test\n', '5 Empty program'],
|
||||
['/* */', '6 Empty program'],
|
||||
['/*\ns,fd\n*/', '7 Empty program'],
|
||||
['/*\ns,fd\n*/\n', '8 Empty program'],
|
||||
[' ', '9 Empty program'],
|
||||
[' /*\nsmeh*/ \n ', '10 Empty program'],
|
||||
|
||||
// trailing whitespace
|
||||
|
||||
['a ', '1 Trailing whitespace'],
|
||||
['a /* something */', '2 Trailing whitespace'],
|
||||
['a\n // hah', '3 Trailing whitespace'],
|
||||
['/abc/de//f', '4 Trailing whitespace'],
|
||||
['/abc/de/*f*/\n ', '5 Trailing whitespace'],
|
||||
|
||||
// things the parser tripped over at one point or the other (prevents regression bugs)
|
||||
['for (x;function(){ a\nb };z) x;', 'for header with function body forcing ASI'],
|
||||
['c=function(){return;return};', 'resetting noAsi after literal'],
|
||||
['d\nd()', 'asi exception causing token overflow'],
|
||||
['for(;;){x=function(){}}', 'function expression in a for header'],
|
||||
['for(var k;;){}', 'parser failing due to ASI accepting the incorrect "for" rule'],
|
||||
['({get foo(){ }})', 'getter with empty function body'],
|
||||
['\nreturnr', 'eol causes return statement to ignore local search requirement'],
|
||||
[' / /', '1 whitespace before regex causes regex to fail?'],
|
||||
['/ // / /', '2 whitespace before regex causes regex to fail?'],
|
||||
['/ / / / /', '3 whitespace before regex causes regex to fail?'],
|
||||
|
||||
['\n\t// Used for trimming whitespace\n\ttrimLeft = /^\\s+/;\n\ttrimRight = /\\s+$/;\t\n','turned out this didnt crash (the test below did), but whatever.'],
|
||||
['/[\\/]/;', 'escaped forward slash inside class group (would choke on fwd slash)'],
|
||||
['/[/]/;', 'also broke but is valid in es5 (not es3)'],
|
||||
['({get:5});','get property name thats not a getter'],
|
||||
['({set:5});','set property name thats not a setter'],
|
||||
['l !== "px" && (d.style(h, c, (k || 1) + l), j = (k || 1) / f.cur() * j, d.style(h, c, j + l)), i[1] && (k = (i[1] === "-=" ? -1 : 1) * k + j), f.custom(j, k, l)', 'this choked regex/div at some point'],
|
||||
['(/\'/g, \'\\\\\\\'\') + "\'";', 'the sequence of escaped characters confused the tokenizer'],
|
||||
['if (true) /=a/.test("a");', 'regexp starting with "=" in not obvious context (not implied by preceding token)']
|
||||
];
|
||||
|
||||
for (var i=0; i<inps.length; ++i) {
|
||||
callback(i, inps[i][0], inps[i][1]);
|
||||
};
|
||||
};
|
1
node_modules/uglify-js/test/unit/compress/expected/array1.js
generated
vendored
Normal file
1
node_modules/uglify-js/test/unit/compress/expected/array1.js
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
[],Array(1),[1,2,3]
|
1
node_modules/uglify-js/test/unit/compress/expected/array2.js
generated
vendored
Normal file
1
node_modules/uglify-js/test/unit/compress/expected/array2.js
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
(function(){var a=function(){};return new a(1,2,3,4)})()
|
1
node_modules/uglify-js/test/unit/compress/expected/array3.js
generated
vendored
Normal file
1
node_modules/uglify-js/test/unit/compress/expected/array3.js
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
(function(){function a(){}return new a(1,2,3,4)})()
|
1
node_modules/uglify-js/test/unit/compress/expected/array4.js
generated
vendored
Normal file
1
node_modules/uglify-js/test/unit/compress/expected/array4.js
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
(function(){function a(){}(function(){return new a(1,2,3)})()})()
|
1
node_modules/uglify-js/test/unit/compress/expected/assignment.js
generated
vendored
Normal file
1
node_modules/uglify-js/test/unit/compress/expected/assignment.js
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
a=1,b=a,c=1,d=b,e=d,longname=2;if(longname+1){x=3;if(x)var z=7}z=1,y=1,x=1,g+=1,h=g,++i,j=i,i++,j=i+17
|
1
node_modules/uglify-js/test/unit/compress/expected/concatstring.js
generated
vendored
Normal file
1
node_modules/uglify-js/test/unit/compress/expected/concatstring.js
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
var a=a+"a"+"b"+1+c,b=a+"c"+"ds"+123+c,c=a+"c"+123+d+"ds"+c
|
1
node_modules/uglify-js/test/unit/compress/expected/const.js
generated
vendored
Normal file
1
node_modules/uglify-js/test/unit/compress/expected/const.js
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
var a=13,b=1/3
|
1
node_modules/uglify-js/test/unit/compress/expected/empty-blocks.js
generated
vendored
Normal file
1
node_modules/uglify-js/test/unit/compress/expected/empty-blocks.js
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
function bar(){return--x}function foo(){while(bar());}function mak(){for(;;);}var x=5
|
1
node_modules/uglify-js/test/unit/compress/expected/forstatement.js
generated
vendored
Normal file
1
node_modules/uglify-js/test/unit/compress/expected/forstatement.js
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
a=func(),b=z;for(a++;i<10;i++)alert(i);var z=1;g=2;for(;i<10;i++)alert(i);var a=2;for(var i=1;i<10;i++)alert(i)
|
1
node_modules/uglify-js/test/unit/compress/expected/if.js
generated
vendored
Normal file
1
node_modules/uglify-js/test/unit/compress/expected/if.js
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
var a=1;a==1?a=2:a=17
|
1
node_modules/uglify-js/test/unit/compress/expected/ifreturn.js
generated
vendored
Normal file
1
node_modules/uglify-js/test/unit/compress/expected/ifreturn.js
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
function a(a){return a==1?2:17}
|
1
node_modules/uglify-js/test/unit/compress/expected/ifreturn2.js
generated
vendored
Normal file
1
node_modules/uglify-js/test/unit/compress/expected/ifreturn2.js
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
function x(a){return typeof a=="object"?a:a===42?0:a*2}function y(a){return typeof a=="object"?a:null}
|
1
node_modules/uglify-js/test/unit/compress/expected/issue10.js
generated
vendored
Normal file
1
node_modules/uglify-js/test/unit/compress/expected/issue10.js
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
function f(){var a;return(a="a")?a:a}f()
|
1
node_modules/uglify-js/test/unit/compress/expected/issue11.js
generated
vendored
Normal file
1
node_modules/uglify-js/test/unit/compress/expected/issue11.js
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
new(A,B),new(A||B),new(X?A:B)
|
1
node_modules/uglify-js/test/unit/compress/expected/issue13.js
generated
vendored
Normal file
1
node_modules/uglify-js/test/unit/compress/expected/issue13.js
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
var a=/^(?:(\w+):)?(?:\/\/(?:(?:([^:@\/]*):?([^:@\/]*))?@)?([^:\/?#])(?::(\d))?)?(..?$|(?:[^?#\/]\/))([^?#]*)(?:\?([^#]))?(?:#(.))?/
|
1
node_modules/uglify-js/test/unit/compress/expected/issue14.js
generated
vendored
Normal file
1
node_modules/uglify-js/test/unit/compress/expected/issue14.js
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
var a={"\b":"\\b","\t":"\\t","\n":"\\n","\f":"\\f","\r":"\\r",'"':'\\"',"\\":"\\\\"}
|
1
node_modules/uglify-js/test/unit/compress/expected/issue16.js
generated
vendored
Normal file
1
node_modules/uglify-js/test/unit/compress/expected/issue16.js
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
var a=3250441966
|
1
node_modules/uglify-js/test/unit/compress/expected/issue17.js
generated
vendored
Normal file
1
node_modules/uglify-js/test/unit/compress/expected/issue17.js
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
var a=function(b){b(),a()}
|
1
node_modules/uglify-js/test/unit/compress/expected/issue20.js
generated
vendored
Normal file
1
node_modules/uglify-js/test/unit/compress/expected/issue20.js
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
a:1
|
1
node_modules/uglify-js/test/unit/compress/expected/issue21.js
generated
vendored
Normal file
1
node_modules/uglify-js/test/unit/compress/expected/issue21.js
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
var a=0;switch(a){case 0:a++}
|
1
node_modules/uglify-js/test/unit/compress/expected/issue25.js
generated
vendored
Normal file
1
node_modules/uglify-js/test/unit/compress/expected/issue25.js
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
label1:{label2:break label2;console.log(1)}
|
1
node_modules/uglify-js/test/unit/compress/expected/issue27.js
generated
vendored
Normal file
1
node_modules/uglify-js/test/unit/compress/expected/issue27.js
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
(a?b:c)?d:e
|
1
node_modules/uglify-js/test/unit/compress/expected/issue28.js
generated
vendored
Normal file
1
node_modules/uglify-js/test/unit/compress/expected/issue28.js
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
o={".5":.5},o={.5:.5},o={.5:.5}
|
1
node_modules/uglify-js/test/unit/compress/expected/issue29.js
generated
vendored
Normal file
1
node_modules/uglify-js/test/unit/compress/expected/issue29.js
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
result=function(){return 1}()
|
1
node_modules/uglify-js/test/unit/compress/expected/issue30.js
generated
vendored
Normal file
1
node_modules/uglify-js/test/unit/compress/expected/issue30.js
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
var a=8,b=4,c=4
|
1
node_modules/uglify-js/test/unit/compress/expected/issue34.js
generated
vendored
Normal file
1
node_modules/uglify-js/test/unit/compress/expected/issue34.js
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
var a={};a["this"]=1,a.that=2
|
1
node_modules/uglify-js/test/unit/compress/expected/issue4.js
generated
vendored
Normal file
1
node_modules/uglify-js/test/unit/compress/expected/issue4.js
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
var a=2e3,b=.002,c=2e-5
|
1
node_modules/uglify-js/test/unit/compress/expected/issue48.js
generated
vendored
Normal file
1
node_modules/uglify-js/test/unit/compress/expected/issue48.js
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
var s,i;s="",i=0
|
1
node_modules/uglify-js/test/unit/compress/expected/issue50.js
generated
vendored
Normal file
1
node_modules/uglify-js/test/unit/compress/expected/issue50.js
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
function bar(a){try{foo()}catch(b){alert("Exception caught (foo not defined)")}alert(a)}bar(10)
|
1
node_modules/uglify-js/test/unit/compress/expected/issue53.js
generated
vendored
Normal file
1
node_modules/uglify-js/test/unit/compress/expected/issue53.js
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
x=(y,z)
|
1
node_modules/uglify-js/test/unit/compress/expected/issue54.1.js
generated
vendored
Normal file
1
node_modules/uglify-js/test/unit/compress/expected/issue54.1.js
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
foo+"",a.toString(16),b.toString.call(c)
|
1
node_modules/uglify-js/test/unit/compress/expected/issue68.js
generated
vendored
Normal file
1
node_modules/uglify-js/test/unit/compress/expected/issue68.js
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
function f(){function b(){}if(a)return;b()}
|
1
node_modules/uglify-js/test/unit/compress/expected/issue69.js
generated
vendored
Normal file
1
node_modules/uglify-js/test/unit/compress/expected/issue69.js
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
[(a,b)]
|
1
node_modules/uglify-js/test/unit/compress/expected/issue9.js
generated
vendored
Normal file
1
node_modules/uglify-js/test/unit/compress/expected/issue9.js
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
var a={a:1,b:2}
|
1
node_modules/uglify-js/test/unit/compress/expected/mangle.js
generated
vendored
Normal file
1
node_modules/uglify-js/test/unit/compress/expected/mangle.js
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
(function(){var a=function b(a,b,c){return b}})()
|
1
node_modules/uglify-js/test/unit/compress/expected/null_string.js
generated
vendored
Normal file
1
node_modules/uglify-js/test/unit/compress/expected/null_string.js
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
var nullString="\0"
|
1
node_modules/uglify-js/test/unit/compress/expected/strict-equals.js
generated
vendored
Normal file
1
node_modules/uglify-js/test/unit/compress/expected/strict-equals.js
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
typeof a=="string",b+""!=c+"",d<e==f<g
|
1
node_modules/uglify-js/test/unit/compress/expected/var.js
generated
vendored
Normal file
1
node_modules/uglify-js/test/unit/compress/expected/var.js
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
var a=1,b=2
|
1
node_modules/uglify-js/test/unit/compress/expected/whitespace.js
generated
vendored
Normal file
1
node_modules/uglify-js/test/unit/compress/expected/whitespace.js
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
function id(a){return a}
|
1
node_modules/uglify-js/test/unit/compress/expected/with.js
generated
vendored
Normal file
1
node_modules/uglify-js/test/unit/compress/expected/with.js
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
with({});
|
3
node_modules/uglify-js/test/unit/compress/test/array1.js
generated
vendored
Normal file
3
node_modules/uglify-js/test/unit/compress/test/array1.js
generated
vendored
Normal file
|
@ -0,0 +1,3 @@
|
|||
new Array();
|
||||
new Array(1);
|
||||
new Array(1, 2, 3);
|
4
node_modules/uglify-js/test/unit/compress/test/array2.js
generated
vendored
Normal file
4
node_modules/uglify-js/test/unit/compress/test/array2.js
generated
vendored
Normal file
|
@ -0,0 +1,4 @@
|
|||
(function(){
|
||||
var Array = function(){};
|
||||
return new Array(1, 2, 3, 4);
|
||||
})();
|
4
node_modules/uglify-js/test/unit/compress/test/array3.js
generated
vendored
Normal file
4
node_modules/uglify-js/test/unit/compress/test/array3.js
generated
vendored
Normal file
|
@ -0,0 +1,4 @@
|
|||
(function(){
|
||||
return new Array(1, 2, 3, 4);
|
||||
function Array() {};
|
||||
})();
|
6
node_modules/uglify-js/test/unit/compress/test/array4.js
generated
vendored
Normal file
6
node_modules/uglify-js/test/unit/compress/test/array4.js
generated
vendored
Normal file
|
@ -0,0 +1,6 @@
|
|||
(function(){
|
||||
(function(){
|
||||
return new Array(1, 2, 3);
|
||||
})();
|
||||
function Array(){};
|
||||
})();
|
20
node_modules/uglify-js/test/unit/compress/test/assignment.js
generated
vendored
Normal file
20
node_modules/uglify-js/test/unit/compress/test/assignment.js
generated
vendored
Normal file
|
@ -0,0 +1,20 @@
|
|||
a=1;
|
||||
b=a;
|
||||
c=1;
|
||||
d=b;
|
||||
e=d;
|
||||
longname=2;
|
||||
if (longname+1) {
|
||||
x=3;
|
||||
if (x) var z = 7;
|
||||
}
|
||||
z=1,y=1,x=1
|
||||
|
||||
g+=1;
|
||||
h=g;
|
||||
|
||||
++i;
|
||||
j=i;
|
||||
|
||||
i++;
|
||||
j=i+17;
|
3
node_modules/uglify-js/test/unit/compress/test/concatstring.js
generated
vendored
Normal file
3
node_modules/uglify-js/test/unit/compress/test/concatstring.js
generated
vendored
Normal file
|
@ -0,0 +1,3 @@
|
|||
var a = a + "a" + "b" + 1 + c;
|
||||
var b = a + "c" + "ds" + 123 + c;
|
||||
var c = a + "c" + 123 + d + "ds" + c;
|
5
node_modules/uglify-js/test/unit/compress/test/const.js
generated
vendored
Normal file
5
node_modules/uglify-js/test/unit/compress/test/const.js
generated
vendored
Normal file
|
@ -0,0 +1,5 @@
|
|||
// test that the calculation is fold to 13
|
||||
var a = 1 + 2 * 6;
|
||||
|
||||
// test that it isn't replaced with 0.3333 because that is more characters
|
||||
var b = 1/3;
|
4
node_modules/uglify-js/test/unit/compress/test/empty-blocks.js
generated
vendored
Normal file
4
node_modules/uglify-js/test/unit/compress/test/empty-blocks.js
generated
vendored
Normal file
|
@ -0,0 +1,4 @@
|
|||
var x = 5;
|
||||
function bar() { return --x; }
|
||||
function foo() { while (bar()); }
|
||||
function mak() { for(;;); }
|
10
node_modules/uglify-js/test/unit/compress/test/forstatement.js
generated
vendored
Normal file
10
node_modules/uglify-js/test/unit/compress/test/forstatement.js
generated
vendored
Normal file
|
@ -0,0 +1,10 @@
|
|||
a=func();
|
||||
b=z;
|
||||
for (a++; i < 10; i++) { alert(i); }
|
||||
|
||||
var z=1;
|
||||
g=2;
|
||||
for (; i < 10; i++) { alert(i); }
|
||||
|
||||
var a = 2;
|
||||
for (var i = 1; i < 10; i++) { alert(i); }
|
6
node_modules/uglify-js/test/unit/compress/test/if.js
generated
vendored
Normal file
6
node_modules/uglify-js/test/unit/compress/test/if.js
generated
vendored
Normal file
|
@ -0,0 +1,6 @@
|
|||
var a = 1;
|
||||
if (a == 1) {
|
||||
a = 2;
|
||||
} else {
|
||||
a = 17;
|
||||
}
|
9
node_modules/uglify-js/test/unit/compress/test/ifreturn.js
generated
vendored
Normal file
9
node_modules/uglify-js/test/unit/compress/test/ifreturn.js
generated
vendored
Normal file
|
@ -0,0 +1,9 @@
|
|||
function a(b) {
|
||||
if (b == 1) {
|
||||
return 2;
|
||||
} else {
|
||||
return 17;
|
||||
}
|
||||
|
||||
return 3;
|
||||
}
|
16
node_modules/uglify-js/test/unit/compress/test/ifreturn2.js
generated
vendored
Normal file
16
node_modules/uglify-js/test/unit/compress/test/ifreturn2.js
generated
vendored
Normal file
|
@ -0,0 +1,16 @@
|
|||
function x(a) {
|
||||
if (typeof a === 'object')
|
||||
return a;
|
||||
|
||||
if (a === 42)
|
||||
return 0;
|
||||
|
||||
return a * 2;
|
||||
}
|
||||
|
||||
function y(a) {
|
||||
if (typeof a === 'object')
|
||||
return a;
|
||||
|
||||
return null;
|
||||
};
|
1
node_modules/uglify-js/test/unit/compress/test/issue10.js
generated
vendored
Normal file
1
node_modules/uglify-js/test/unit/compress/test/issue10.js
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
function f() { var a; if (a = 'a') { return a; } else { return a; } }; f();
|
3
node_modules/uglify-js/test/unit/compress/test/issue11.js
generated
vendored
Normal file
3
node_modules/uglify-js/test/unit/compress/test/issue11.js
generated
vendored
Normal file
|
@ -0,0 +1,3 @@
|
|||
new (A, B)
|
||||
new (A || B)
|
||||
new (X ? A : B)
|
1
node_modules/uglify-js/test/unit/compress/test/issue13.js
generated
vendored
Normal file
1
node_modules/uglify-js/test/unit/compress/test/issue13.js
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
var a = /^(?:(\w+):)?(?:\/\/(?:(?:([^:@\/]*):?([^:@\/]*))?@)?([^:\/?#])(?::(\d))?)?(..?$|(?:[^?#\/]\/))([^?#]*)(?:\?([^#]))?(?:#(.))?/;
|
1
node_modules/uglify-js/test/unit/compress/test/issue14.js
generated
vendored
Normal file
1
node_modules/uglify-js/test/unit/compress/test/issue14.js
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
var a = {'\b': '\\b', '\t': '\\t', '\n': '\\n', '\f': '\\f', '\r': '\\r', '"' : '\\"', '\\': '\\\\'};
|
1
node_modules/uglify-js/test/unit/compress/test/issue16.js
generated
vendored
Normal file
1
node_modules/uglify-js/test/unit/compress/test/issue16.js
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
var a = 0xC1BDCEEE;
|
4
node_modules/uglify-js/test/unit/compress/test/issue17.js
generated
vendored
Normal file
4
node_modules/uglify-js/test/unit/compress/test/issue17.js
generated
vendored
Normal file
|
@ -0,0 +1,4 @@
|
|||
var a = function(b) {
|
||||
b();
|
||||
a()
|
||||
}
|
1
node_modules/uglify-js/test/unit/compress/test/issue20.js
generated
vendored
Normal file
1
node_modules/uglify-js/test/unit/compress/test/issue20.js
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
{a: 1}
|
6
node_modules/uglify-js/test/unit/compress/test/issue21.js
generated
vendored
Normal file
6
node_modules/uglify-js/test/unit/compress/test/issue21.js
generated
vendored
Normal file
|
@ -0,0 +1,6 @@
|
|||
var a = 0;
|
||||
switch(a) {
|
||||
case 0:
|
||||
a++;
|
||||
break;
|
||||
}
|
7
node_modules/uglify-js/test/unit/compress/test/issue25.js
generated
vendored
Normal file
7
node_modules/uglify-js/test/unit/compress/test/issue25.js
generated
vendored
Normal file
|
@ -0,0 +1,7 @@
|
|||
label1 : {
|
||||
label2 : {
|
||||
break label2;
|
||||
console.log(2);
|
||||
}
|
||||
console.log(1);
|
||||
}
|
1
node_modules/uglify-js/test/unit/compress/test/issue27.js
generated
vendored
Normal file
1
node_modules/uglify-js/test/unit/compress/test/issue27.js
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
(a ? b : c) ? d : e
|
3
node_modules/uglify-js/test/unit/compress/test/issue28.js
generated
vendored
Normal file
3
node_modules/uglify-js/test/unit/compress/test/issue28.js
generated
vendored
Normal file
|
@ -0,0 +1,3 @@
|
|||
o = {'.5':.5}
|
||||
o = {'0.5':.5}
|
||||
o = {0.5:.5}
|
1
node_modules/uglify-js/test/unit/compress/test/issue29.js
generated
vendored
Normal file
1
node_modules/uglify-js/test/unit/compress/test/issue29.js
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
result=(function(){ return 1;})()
|
3
node_modules/uglify-js/test/unit/compress/test/issue30.js
generated
vendored
Normal file
3
node_modules/uglify-js/test/unit/compress/test/issue30.js
generated
vendored
Normal file
|
@ -0,0 +1,3 @@
|
|||
var a = 1 << 3;
|
||||
var b = 8 >> 1;
|
||||
var c = 8 >>> 1;
|
3
node_modules/uglify-js/test/unit/compress/test/issue34.js
generated
vendored
Normal file
3
node_modules/uglify-js/test/unit/compress/test/issue34.js
generated
vendored
Normal file
|
@ -0,0 +1,3 @@
|
|||
var a = {};
|
||||
a["this"] = 1;
|
||||
a["that"] = 2;
|
3
node_modules/uglify-js/test/unit/compress/test/issue4.js
generated
vendored
Normal file
3
node_modules/uglify-js/test/unit/compress/test/issue4.js
generated
vendored
Normal file
|
@ -0,0 +1,3 @@
|
|||
var a = 2e3;
|
||||
var b = 2e-3;
|
||||
var c = 2e-5;
|
1
node_modules/uglify-js/test/unit/compress/test/issue48.js
generated
vendored
Normal file
1
node_modules/uglify-js/test/unit/compress/test/issue48.js
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
var s, i; s = ''; i = 0;
|
9
node_modules/uglify-js/test/unit/compress/test/issue50.js
generated
vendored
Normal file
9
node_modules/uglify-js/test/unit/compress/test/issue50.js
generated
vendored
Normal file
|
@ -0,0 +1,9 @@
|
|||
function bar(a) {
|
||||
try {
|
||||
foo();
|
||||
} catch(e) {
|
||||
alert("Exception caught (foo not defined)");
|
||||
}
|
||||
alert(a); // 10 in FF, "[object Error]" in IE
|
||||
}
|
||||
bar(10);
|
1
node_modules/uglify-js/test/unit/compress/test/issue53.js
generated
vendored
Normal file
1
node_modules/uglify-js/test/unit/compress/test/issue53.js
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
x = (y, z)
|
3
node_modules/uglify-js/test/unit/compress/test/issue54.1.js
generated
vendored
Normal file
3
node_modules/uglify-js/test/unit/compress/test/issue54.1.js
generated
vendored
Normal file
|
@ -0,0 +1,3 @@
|
|||
foo.toString();
|
||||
a.toString(16);
|
||||
b.toString.call(c);
|
5
node_modules/uglify-js/test/unit/compress/test/issue68.js
generated
vendored
Normal file
5
node_modules/uglify-js/test/unit/compress/test/issue68.js
generated
vendored
Normal file
|
@ -0,0 +1,5 @@
|
|||
function f() {
|
||||
if (a) return;
|
||||
g();
|
||||
function g(){}
|
||||
};
|
1
node_modules/uglify-js/test/unit/compress/test/issue69.js
generated
vendored
Normal file
1
node_modules/uglify-js/test/unit/compress/test/issue69.js
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
[(a,b)]
|
4
node_modules/uglify-js/test/unit/compress/test/issue9.js
generated
vendored
Normal file
4
node_modules/uglify-js/test/unit/compress/test/issue9.js
generated
vendored
Normal file
|
@ -0,0 +1,4 @@
|
|||
var a = {
|
||||
a: 1,
|
||||
b: 2, // <-- trailing comma
|
||||
};
|
5
node_modules/uglify-js/test/unit/compress/test/mangle.js
generated
vendored
Normal file
5
node_modules/uglify-js/test/unit/compress/test/mangle.js
generated
vendored
Normal file
|
@ -0,0 +1,5 @@
|
|||
(function() {
|
||||
var x = function fun(a, fun, b) {
|
||||
return fun;
|
||||
};
|
||||
}());
|
1
node_modules/uglify-js/test/unit/compress/test/null_string.js
generated
vendored
Normal file
1
node_modules/uglify-js/test/unit/compress/test/null_string.js
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
var nullString = "\0"
|
3
node_modules/uglify-js/test/unit/compress/test/strict-equals.js
generated
vendored
Normal file
3
node_modules/uglify-js/test/unit/compress/test/strict-equals.js
generated
vendored
Normal file
|
@ -0,0 +1,3 @@
|
|||
typeof a === 'string'
|
||||
b + "" !== c + ""
|
||||
d < e === f < g
|
3
node_modules/uglify-js/test/unit/compress/test/var.js
generated
vendored
Normal file
3
node_modules/uglify-js/test/unit/compress/test/var.js
generated
vendored
Normal file
|
@ -0,0 +1,3 @@
|
|||
// var declarations after each other should be combined
|
||||
var a = 1;
|
||||
var b = 2;
|
21
node_modules/uglify-js/test/unit/compress/test/whitespace.js
generated
vendored
Normal file
21
node_modules/uglify-js/test/unit/compress/test/whitespace.js
generated
vendored
Normal file
|
@ -0,0 +1,21 @@
|
|||
function id(a) {
|
||||
// Form-Feed
|
||||
// Vertical Tab
|
||||
// No-Break Space
|
||||
// Mongolian Vowel Separator
|
||||
// En quad
|
||||
// Em quad
|
||||
// En space
|
||||
// Em space
|
||||
// Three-Per-Em Space
|
||||
// Four-Per-Em Space
|
||||
// Six-Per-Em Space
|
||||
// Figure Space
|
||||
// Punctuation Space
|
||||
// Thin Space
|
||||
// Hair Space
|
||||
// Narrow No-Break Space
|
||||
// Medium Mathematical Space
|
||||
// Ideographic Space
|
||||
return a;
|
||||
}
|
2
node_modules/uglify-js/test/unit/compress/test/with.js
generated
vendored
Normal file
2
node_modules/uglify-js/test/unit/compress/test/with.js
generated
vendored
Normal file
|
@ -0,0 +1,2 @@
|
|||
with({}) {
|
||||
};
|
55
node_modules/uglify-js/test/unit/scripts.js
generated
vendored
Normal file
55
node_modules/uglify-js/test/unit/scripts.js
generated
vendored
Normal file
|
@ -0,0 +1,55 @@
|
|||
var fs = require('fs'),
|
||||
uglify = require('uglify-js'),
|
||||
jsp = uglify.parser,
|
||||
nodeunit = require('nodeunit'),
|
||||
path = require('path'),
|
||||
pro = uglify.uglify;
|
||||
|
||||
var Script = process.binding('evals').Script;
|
||||
|
||||
var scriptsPath = __dirname;
|
||||
|
||||
function compress(code) {
|
||||
var ast = jsp.parse(code);
|
||||
ast = pro.ast_mangle(ast);
|
||||
ast = pro.ast_squeeze(ast, { no_warnings: true });
|
||||
ast = pro.ast_squeeze_more(ast);
|
||||
return pro.gen_code(ast);
|
||||
};
|
||||
|
||||
var testDir = path.join(scriptsPath, "compress", "test");
|
||||
var expectedDir = path.join(scriptsPath, "compress", "expected");
|
||||
|
||||
function getTester(script) {
|
||||
return function(test) {
|
||||
var testPath = path.join(testDir, script);
|
||||
var expectedPath = path.join(expectedDir, script);
|
||||
var content = fs.readFileSync(testPath, 'utf-8');
|
||||
var outputCompress = compress(content);
|
||||
|
||||
// Check if the noncompressdata is larger or same size as the compressed data
|
||||
test.ok(content.length >= outputCompress.length);
|
||||
|
||||
// Check that a recompress gives the same result
|
||||
var outputReCompress = compress(content);
|
||||
test.equal(outputCompress, outputReCompress);
|
||||
|
||||
// Check if the compressed output is what is expected
|
||||
var expected = fs.readFileSync(expectedPath, 'utf-8');
|
||||
test.equal(outputCompress, expected.replace(/(\r?\n)+$/, ""));
|
||||
|
||||
test.done();
|
||||
};
|
||||
};
|
||||
|
||||
var tests = {};
|
||||
|
||||
var scripts = fs.readdirSync(testDir);
|
||||
for (var i in scripts) {
|
||||
var script = scripts[i];
|
||||
if (/\.js$/.test(script)) {
|
||||
tests[script] = getTester(script);
|
||||
}
|
||||
}
|
||||
|
||||
module.exports = nodeunit.testCase(tests);
|
33
node_modules/uglify-js/tmp/hoist.js
generated
vendored
Normal file
33
node_modules/uglify-js/tmp/hoist.js
generated
vendored
Normal file
|
@ -0,0 +1,33 @@
|
|||
function foo(arg1, arg2, arg3, arg4, arg5, arg6) {
|
||||
var a = 5;
|
||||
{
|
||||
var d = 10, mak = 20, buz = 30;
|
||||
var q = buz * 2;
|
||||
}
|
||||
if (moo) {
|
||||
var a, b, c;
|
||||
}
|
||||
for (var arg1 = 0, d = 20; arg1 < 10; ++arg1)
|
||||
console.log(arg3);
|
||||
for (var i in mak) {}
|
||||
for (j in d) {}
|
||||
var d;
|
||||
|
||||
function test() {
|
||||
|
||||
};
|
||||
|
||||
//test();
|
||||
|
||||
(function moo(first, second){
|
||||
console.log(first);
|
||||
})(1);
|
||||
|
||||
(function moo(first, second){
|
||||
console.log(moo());
|
||||
})(1);
|
||||
}
|
||||
|
||||
|
||||
var foo;
|
||||
var bar;
|
97
node_modules/uglify-js/tmp/instrument.js
generated
vendored
Normal file
97
node_modules/uglify-js/tmp/instrument.js
generated
vendored
Normal file
|
@ -0,0 +1,97 @@
|
|||
// sample on how to use the parser and walker API to instrument some code
|
||||
|
||||
var jsp = require("uglify-js").parser;
|
||||
var pro = require("uglify-js").uglify;
|
||||
|
||||
function instrument(code) {
|
||||
var ast = jsp.parse(code, false, true); // true for the third arg specifies that we want
|
||||
// to have start/end tokens embedded in the
|
||||
// statements
|
||||
var w = pro.ast_walker();
|
||||
|
||||
// we're gonna need this to push elements that we're currently looking at, to avoid
|
||||
// endless recursion.
|
||||
var analyzing = [];
|
||||
function do_stat() {
|
||||
var ret;
|
||||
if (this[0].start && analyzing.indexOf(this) < 0) {
|
||||
// without the `analyzing' hack, w.walk(this) would re-enter here leading
|
||||
// to infinite recursion
|
||||
analyzing.push(this);
|
||||
ret = [ "splice", // XXX: "block" is safer
|
||||
[ [ "stat",
|
||||
[ "call", [ "name", "trace" ],
|
||||
[ [ "string", this[0].toString() ],
|
||||
[ "num", this[0].start.line ],
|
||||
[ "num", this[0].start.col ],
|
||||
[ "num", this[0].end.line ],
|
||||
[ "num", this[0].end.col ]]]],
|
||||
w.walk(this) ]];
|
||||
analyzing.pop(this);
|
||||
}
|
||||
return ret;
|
||||
};
|
||||
var new_ast = w.with_walkers({
|
||||
"stat" : do_stat,
|
||||
"label" : do_stat,
|
||||
"break" : do_stat,
|
||||
"continue" : do_stat,
|
||||
"debugger" : do_stat,
|
||||
"var" : do_stat,
|
||||
"const" : do_stat,
|
||||
"return" : do_stat,
|
||||
"throw" : do_stat,
|
||||
"try" : do_stat,
|
||||
"defun" : do_stat,
|
||||
"if" : do_stat,
|
||||
"while" : do_stat,
|
||||
"do" : do_stat,
|
||||
"for" : do_stat,
|
||||
"for-in" : do_stat,
|
||||
"switch" : do_stat,
|
||||
"with" : do_stat
|
||||
}, function(){
|
||||
return w.walk(ast);
|
||||
});
|
||||
return pro.gen_code(new_ast, { beautify: true });
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
////// test code follows.
|
||||
|
||||
var code = instrument(test.toString());
|
||||
console.log(code);
|
||||
|
||||
function test() {
|
||||
// simple stats
|
||||
a = 5;
|
||||
c += a + b;
|
||||
"foo";
|
||||
|
||||
// var
|
||||
var foo = 5;
|
||||
const bar = 6, baz = 7;
|
||||
|
||||
// switch block. note we can't track case lines the same way.
|
||||
switch ("foo") {
|
||||
case "foo":
|
||||
return 1;
|
||||
case "bar":
|
||||
return 2;
|
||||
}
|
||||
|
||||
// for/for in
|
||||
for (var i = 0; i < 5; ++i) {
|
||||
console.log("Hello " + i);
|
||||
}
|
||||
for (var i in [ 1, 2, 3]) {
|
||||
console.log(i);
|
||||
}
|
||||
|
||||
// note however that the following is broken. I guess we
|
||||
// should add the block brackets in this case...
|
||||
for (var i = 0; i < 5; ++i)
|
||||
console.log("foo");
|
||||
}
|
138
node_modules/uglify-js/tmp/instrument2.js
generated
vendored
Normal file
138
node_modules/uglify-js/tmp/instrument2.js
generated
vendored
Normal file
|
@ -0,0 +1,138 @@
|
|||
// sample on how to use the parser and walker API to instrument some code
|
||||
|
||||
var jsp = require("uglify-js").parser;
|
||||
var pro = require("uglify-js").uglify;
|
||||
|
||||
function instrument(code) {
|
||||
var ast = jsp.parse(code, false, true); // true for the third arg specifies that we want
|
||||
// to have start/end tokens embedded in the
|
||||
// statements
|
||||
var w = pro.ast_walker();
|
||||
|
||||
function trace (line, comment) {
|
||||
var code = pro.gen_code(line, { beautify: true });
|
||||
var data = line[0]
|
||||
|
||||
var args = []
|
||||
if (!comment) comment = ""
|
||||
if (typeof data === "object") {
|
||||
code = code.split(/\n/).shift()
|
||||
args = [ [ "string", data.toString() ],
|
||||
[ "string", code ],
|
||||
[ "num", data.start.line ],
|
||||
[ "num", data.start.col ],
|
||||
[ "num", data.end.line ],
|
||||
[ "num", data.end.col ]]
|
||||
} else {
|
||||
args = [ [ "string", data ],
|
||||
[ "string", code ]]
|
||||
|
||||
}
|
||||
return [ "call", [ "name", "trace" ], args ];
|
||||
}
|
||||
|
||||
// we're gonna need this to push elements that we're currently looking at, to avoid
|
||||
// endless recursion.
|
||||
var analyzing = [];
|
||||
function do_stat() {
|
||||
var ret;
|
||||
if (this[0].start && analyzing.indexOf(this) < 0) {
|
||||
// without the `analyzing' hack, w.walk(this) would re-enter here leading
|
||||
// to infinite recursion
|
||||
analyzing.push(this);
|
||||
ret = [ "splice",
|
||||
[ [ "stat", trace(this) ],
|
||||
w.walk(this) ]];
|
||||
analyzing.pop(this);
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
function do_cond(c, t, f) {
|
||||
return [ this[0], w.walk(c),
|
||||
["seq", trace(t), w.walk(t) ],
|
||||
["seq", trace(f), w.walk(f) ]];
|
||||
}
|
||||
|
||||
function do_binary(c, l, r) {
|
||||
if (c !== "&&" && c !== "||") {
|
||||
return [this[0], c, w.walk(l), w.walk(r)];
|
||||
}
|
||||
return [ this[0], c,
|
||||
["seq", trace(l), w.walk(l) ],
|
||||
["seq", trace(r), w.walk(r) ]];
|
||||
}
|
||||
|
||||
var new_ast = w.with_walkers({
|
||||
"stat" : do_stat,
|
||||
"label" : do_stat,
|
||||
"break" : do_stat,
|
||||
"continue" : do_stat,
|
||||
"debugger" : do_stat,
|
||||
"var" : do_stat,
|
||||
"const" : do_stat,
|
||||
"return" : do_stat,
|
||||
"throw" : do_stat,
|
||||
"try" : do_stat,
|
||||
"defun" : do_stat,
|
||||
"if" : do_stat,
|
||||
"while" : do_stat,
|
||||
"do" : do_stat,
|
||||
"for" : do_stat,
|
||||
"for-in" : do_stat,
|
||||
"switch" : do_stat,
|
||||
"with" : do_stat,
|
||||
"conditional" : do_cond,
|
||||
"binary" : do_binary
|
||||
}, function(){
|
||||
return w.walk(ast);
|
||||
});
|
||||
return pro.gen_code(new_ast, { beautify: true });
|
||||
}
|
||||
|
||||
|
||||
////// test code follows.
|
||||
|
||||
var code = instrument(test.toString());
|
||||
console.log(code);
|
||||
|
||||
function test() {
|
||||
// simple stats
|
||||
a = 5;
|
||||
c += a + b;
|
||||
"foo";
|
||||
|
||||
// var
|
||||
var foo = 5;
|
||||
const bar = 6, baz = 7;
|
||||
|
||||
// switch block. note we can't track case lines the same way.
|
||||
switch ("foo") {
|
||||
case "foo":
|
||||
return 1;
|
||||
case "bar":
|
||||
return 2;
|
||||
}
|
||||
|
||||
// for/for in
|
||||
for (var i = 0; i < 5; ++i) {
|
||||
console.log("Hello " + i);
|
||||
}
|
||||
for (var i in [ 1, 2, 3]) {
|
||||
console.log(i);
|
||||
}
|
||||
|
||||
for (var i = 0; i < 5; ++i)
|
||||
console.log("foo");
|
||||
|
||||
for (var i = 0; i < 5; ++i) {
|
||||
console.log("foo");
|
||||
}
|
||||
|
||||
var k = plurp() ? 1 : 0;
|
||||
var x = a ? doX(y) && goZoo("zoo")
|
||||
: b ? blerg({ x: y })
|
||||
: null;
|
||||
|
||||
var x = X || Y;
|
||||
}
|
30
node_modules/uglify-js/tmp/test.js
generated
vendored
Executable file
30
node_modules/uglify-js/tmp/test.js
generated
vendored
Executable file
|
@ -0,0 +1,30 @@
|
|||
#! /usr/bin/env node
|
||||
|
||||
global.sys = require(/^v0\.[012]/.test(process.version) ? "sys" : "util");
|
||||
var fs = require("fs");
|
||||
var uglify = require("uglify-js"), // symlink ~/.node_libraries/uglify-js.js to ../uglify-js.js
|
||||
jsp = uglify.parser,
|
||||
pro = uglify.uglify;
|
||||
|
||||
var code = fs.readFileSync("hoist.js", "utf8");
|
||||
var ast = jsp.parse(code);
|
||||
|
||||
ast = pro.ast_lift_variables(ast);
|
||||
|
||||
var w = pro.ast_walker();
|
||||
ast = w.with_walkers({
|
||||
"function": function() {
|
||||
var node = w.dive(this); // walk depth first
|
||||
console.log(pro.gen_code(node, { beautify: true }));
|
||||
return node;
|
||||
},
|
||||
"name": function(name) {
|
||||
return [ this[0], "X" ];
|
||||
}
|
||||
}, function(){
|
||||
return w.walk(ast);
|
||||
});
|
||||
|
||||
console.log(pro.gen_code(ast, {
|
||||
beautify: true
|
||||
}));
|
17
node_modules/uglify-js/uglify-js.js
generated
vendored
Normal file
17
node_modules/uglify-js/uglify-js.js
generated
vendored
Normal file
|
@ -0,0 +1,17 @@
|
|||
//convienence function(src, [options]);
|
||||
function uglify(orig_code, options){
|
||||
options || (options = {});
|
||||
var jsp = uglify.parser;
|
||||
var pro = uglify.uglify;
|
||||
|
||||
var ast = jsp.parse(orig_code, options.strict_semicolons); // parse code and get the initial AST
|
||||
ast = pro.ast_mangle(ast, options.mangle_options); // get a new AST with mangled names
|
||||
ast = pro.ast_squeeze(ast, options.squeeze_options); // get an AST with compression optimizations
|
||||
var final_code = pro.gen_code(ast, options.gen_options); // compressed code here
|
||||
return final_code;
|
||||
};
|
||||
|
||||
uglify.parser = require("./lib/parse-js");
|
||||
uglify.uglify = require("./lib/process");
|
||||
|
||||
module.exports = uglify
|
Loading…
Add table
Add a link
Reference in a new issue