Ignore merge

This commit is contained in:
Ritchie 2013-05-07 11:46:57 -07:00
parent 7d0dfb5600
commit c65fde6bd6
276 changed files with 2 additions and 29694 deletions

3
.gitignore vendored
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@ -12,4 +12,5 @@
/node_modules/debug /node_modules/debug
/node_modules/jugglingdb /node_modules/jugglingdb
/node_modules/mocha /node_modules/mocha
/node_modules/asteroid-module-loader /node_modules/asteroid-module-loader
/node_modules/merge

52
node_modules/merge/README.md generated vendored
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JavaScript/NodeJS Merge v1.1.0
==================================================
What is it?
--------------------------------------
JavaScript/NodeJS Merge is a tool to merge multiple objects into one object, with the possibility of create a new object cloned. His operation is very similar to the [jQuery.extend](http://api.jquery.com/jQuery.extend/) function but more flexible.
Example from NodeJS
--------------
var merge = require('merge'), // npm install -g merge
original, cloned;
console.log(
merge({ one: 'hello' }, { two: 'world' })
); // {"one": "hello", "two": "world"}
original = { x: { y: 1 } };
cloned = merge(true, original);
cloned.x.y++;
console.log(original.x.y, cloned.x.y); // 1, 2
Example from JavaScript browser
--------------------------
<script src="http://yeikos.googlecode.com/files/merge.js"></script>
<script>
var original, cloned;
console.log(
merge({ one: 'hello' }, { two: 'world' })
); // {"one": "hello", "two": "world"}
original = { x: { y: 1 } };
cloned = merge(true, original);
cloned.x.y++;
console.log(original.x.y, cloned.x.y); // 1, 2
</script>

82
node_modules/merge/merge.js generated vendored
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/*!
* @name JavaScript/NodeJS Merge v1.1.0
* @author yeikos
* @repository https://github.com/yeikos/js.merge
* Copyright 2013
* GNU General Public License
* http://www.gnu.org/licenses/gpl-3.0.txt
*/
;(function(isNode) {
function merge() {
var items = Array.prototype.slice.call(arguments),
result = items.shift(),
deep = (result === true),
size = items.length,
item, index, key;
if (deep || typeOf(result) !== 'object')
result = {};
for (index=0;index<size;++index)
if (typeOf(item = items[index]) === 'object')
for (key in item)
result[key] = deep ? clone(item[key]) : item[key];
return result;
}
function clone(input) {
var output = input,
type = typeOf(input),
index, size;
if (type === 'array') {
output = [];
size = input.length;
for (index=0;index<size;++index)
output[index] = clone(input[index]);
} else if (type === 'object') {
output = {};
for (index in input)
output[index] = clone(input[index]);
}
return output;
}
function typeOf(input) {
return ({}).toString.call(input).match(/\s([\w]+)/)[1].toLowerCase();
}
if (isNode) {
module.exports = merge;
} else {
window.merge = merge;
}
})(typeof module === 'object' && module && typeof module.exports === 'object' && module.exports);

3
node_modules/merge/merge.min.js generated vendored
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/* JavaScript/NodeJS Merge v1.1.0 - https://github.com/yeikos/js.merge */
;(function(e){function t(){var e=Array.prototype.slice.call(arguments),t=e.shift(),i=t===true,s=e.length,o,u,a;if(i||r(t)!=="object")t={};for(u=0;u<s;++u)if(r(o=e[u])==="object")for(a in o)t[a]=i?n(o[a]):o[a];return t}function n(e){var t=e,i=r(e),s,o;if(i==="array"){t=[];o=e.length;for(s=0;s<o;++s)t[s]=n(e[s])}else if(i==="object"){t={};for(s in e)t[s]=n(e[s])}return t}function r(e){return{}.toString.call(e).match(/\s([\w]+)/)[1].toLowerCase()}if(e){module.exports=t}else{window.merge=t}})(typeof module==="object"&&module&&typeof module.exports==="object"&&module.exports);

14
node_modules/merge/package.json generated vendored
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{
"name": "merge",
"version": "1.1.0",
"author": {
"name": "yeikos"
},
"description": "JavaScript/NodeJS Merge is a tool to merge multiple objects into one object, with the possibility of create a new object cloned. His operation is very similar to the jQuery.extend function but more flexible.",
"homepage": "https://github.com/yeikos/js.merge",
"main": "merge.js",
"readme": "JavaScript/NodeJS Merge v1.1.0\r\n==================================================\r\n\r\nWhat is it?\r\n--------------------------------------\r\n\r\nJavaScript/NodeJS Merge is a tool to merge multiple objects into one object, with the possibility of create a new object cloned. His operation is very similar to the [jQuery.extend](http://api.jquery.com/jQuery.extend/) function but more flexible.\r\n\r\nExample from NodeJS\r\n--------------\r\n\r\n\tvar merge = require('merge'), // npm install -g merge\r\n\t\toriginal, cloned;\r\n\t\r\n\tconsole.log(\r\n\t\t\r\n\t\tmerge({ one: 'hello' }, { two: 'world' })\r\n\r\n\t); // {\"one\": \"hello\", \"two\": \"world\"}\r\n\t\r\n\toriginal = { x: { y: 1 } };\r\n\r\n\tcloned = merge(true, original);\r\n\r\n\tcloned.x.y++;\r\n\r\n\tconsole.log(original.x.y, cloned.x.y); // 1, 2\r\n\r\nExample from JavaScript browser\r\n--------------------------\r\n\r\n\t<script src=\"http://yeikos.googlecode.com/files/merge.js\"></script>\r\n\t\r\n\t<script>\r\n\t\t\r\n\t\tvar original, cloned;\r\n\t\t\r\n\t\tconsole.log(\r\n\t\t\t\r\n\t\t\tmerge({ one: 'hello' }, { two: 'world' })\r\n\t\r\n\t\t); // {\"one\": \"hello\", \"two\": \"world\"}\r\n\t\t\r\n\t\toriginal = { x: { y: 1 } };\r\n\t\r\n\t\tcloned = merge(true, original);\r\n\t\r\n\t\tcloned.x.y++;\r\n\t\r\n\t\tconsole.log(original.x.y, cloned.x.y); // 1, 2\r\n\r\n\t</script>",
"readmeFilename": "README.md",
"_id": "merge@1.1.0",
"_from": "merge@"
}

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node_modules/merge/tests/index.html generated vendored
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<!DOCTYPE html><html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>JavaScript/NodeJS Merge v1.1.0</title>
<link rel="stylesheet" href="qunit/qunit.css" />
<script src="qunit/qunit.js" data-qunit></script>
<script src="../merge.js" data-qunit></script>
<script src="tests.js" data-qunit></script>
</head>
<body>
<div id="qunit"></div>
</body>
</html>

8
node_modules/merge/tests/index.js generated vendored
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var qunit = require('./qunit/node_modules/qunit/index.js');
qunit.run({
code: { path: '../merge.js', namespace: 'merge' },
tests: 'tests.js'
});

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#!/bin/sh
basedir=`dirname "$0"`
case `uname` in
*CYGWIN*) basedir=`cygpath -w "$basedir"`;;
esac
if [ -x "$basedir/node" ]; then
"$basedir/node" "$basedir/../qunit/bin/cli.js" "$@"
ret=$?
else
node "$basedir/../qunit/bin/cli.js" "$@"
ret=$?
fi
exit $ret

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@IF EXIST "%~dp0\node.exe" (
"%~dp0\node.exe" "%~dp0\..\qunit\bin\cli.js" %*
) ELSE (
node "%~dp0\..\qunit\bin\cli.js" %*
)

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[submodule "support/qunit"]
path = support/qunit
url = https://github.com/jquery/qunit.git

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.DS_Store
node_modules

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test:
node ./test/testrunner.js
.PHONY: install test

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#!/usr/bin/env node
var util = require('util'),
argsparser = require('argsparser'),
fs = require('fs');
var root = __dirname + '/..',
args = argsparser.parse(),
testrunner = require(root),
o = testrunner.options,
code, tests,
help;
help = ''
+ '\nUsage: cli [options] value (boolean value can be used)'
+ '\n'
+ '\nOptions:'
+ '\n -c, --code path to code you want to test'
+ '\n -t, --tests path to tests (space separated)'
+ '\n -d, --deps dependency paths - files required before code (space separated)'
+ '\n -l, --log logging options, json have to be used'
+ '\n --cov create tests coverage report'
+ '\n -h, --help show this help'
+ '\n -v, --version show module version'
+ '\n';
/**
* Parses a code or dependency argument, returning an object defining the
* specified file path or/and module name.
* The exports of the module will be exposed globally by default. To expose
* exports as a named variable, prefix the resource with the desired variable
* name followed by a colon.
* This allows you to more accurately recreate browser usage of QUnit, for
* tests which are portable between browser runtime environmemts and Node.js.
* @param {string} path to file or module name to require.
* @return {Object} resource
*/
function parsePath(path) {
var parts = path.split(':'),
resource = {
path: path
};
if (parts.length === 2) {
resource.namespace = parts[0];
resource.path = parts[1];
}
return resource;
}
for (var key in args) {
switch(key) {
case 'node':
// Skip the 'node' argument
break;
case '-c':
case '--code':
code = parsePath(args[key]);
break;
case '-t':
case '--tests':
// it's assumed that tests arguments will be file paths whose
// contents are to be made global. This is consistent with use
// of QUnit in browsers.
tests = args[key];
break;
case '-d':
case '--deps':
o.deps = args[key];
if (!Array.isArray(o.deps)) {
o.deps = [o.deps];
}
o.deps = o.deps.map(parsePath);
break;
case '-l':
case '--log':
eval('o.log = ' + args[key]);
break;
case '--cov':
o.coverage = args[key];
break;
case '-p':
case '--paths':
o.paths = args[key];
break;
case '-v':
case '--version':
util.print(
JSON.parse(
fs.readFileSync(__dirname + '/../package.json')
).version + '\n'
);
return;
case '-h':
case '-?':
case '--help':
util.print(help);
return;
}
}
if(!code || !tests) {
util.print(help);
util.print('\nBoth --code and --tests arguments are required\n');
return;
}
testrunner.run({ code: code, tests: tests }, function(err, stats) {
if (err) {
console.error(err);
process.exit(1);
return;
}
process.exit(stats.failed > 0 ? 1 : 0);
});

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module.exports = require("./lib/testrunner");

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var QUnit = require('../support/qunit/qunit/qunit.js'),
path = require('path'),
_ = require('underscore'),
trace = require('tracejs').trace;
// cycle.js: This file contains two functions, JSON.decycle and JSON.retrocycle,
// which make it possible to encode cyclical structures and dags in JSON, and to
// then recover them. JSONPath is used to represent the links.
// http://GOESSNER.net/articles/JsonPath/
require('../support/json/cycle');
var options = JSON.parse(process.argv[2]),
currentModule = path.basename(options.code.path, '.js'),
currentTest;
process.on('uncaughtException', function(err) {
process.send({event: 'uncaughtException'});
if (QUnit.config.current) {
QUnit.ok(false, 'Test threw unexpected exception: ' + err);
QUnit.start();
} else {
throw err;
}
});
QUnit.config.autorun = false;
QUnit.config.autostart = false;
// make qunit api global, like it is in the browser
_.extend(global, QUnit);
// as well as the QUnit variable itself
global.QUnit = QUnit;
/**
* Require a resource.
* @param {Object} res
*/
function _require(res, addToGlobal) {
var exports = require(res.path.replace(/\.js$/, ''));
if (addToGlobal) {
// resource can define 'namespace' to expose its exports as a named object
if (res.namespace) {
global[res.namespace] = exports;
} else {
_.extend(global, exports);
}
}
QUnit.start();
}
/**
* Calculate coverage stats using bunker
*/
function calcCoverage() {
}
/**
* Callback for each started test.
* @param {Object} test
*/
QUnit.testStart(function(test) {
// currentTest is undefined while first test is not done yet
currentTest = test.name;
// use last module name if no module name defined
currentModule = test.module || currentModule;
});
/**
* Callback for each assertion.
* @param {Object} data
*/
QUnit.log(function(data) {
data.test = this.config.current.testName;
data.module = currentModule;
process.send({
event: 'assertionDone',
data: JSON.decycle(data)
});
});
/**
* Callback for one done test.
* @param {Object} test
*/
QUnit.testDone(function(data) {
// use last module name if no module name defined
data.module = data.module || currentModule;
process.send({
event: 'testDone',
data: data
});
});
/**
* Callback for all done tests in the file.
* @param {Object} res
*/
QUnit.done(_.debounce(function(data) {
if (options.coverage) {
data.coverage = calcCoverage();
}
process.send({
event: 'done',
data: data
});
}, 1000));
/**
* Provide better stack traces
*/
var error = console.error;
console.error = function(obj) {
// log full stacktrace
if (obj && obj.stack) {
obj = trace(obj);
}
return error.apply(this, arguments);
};
// require deps
options.deps.forEach(function(dep) {
_require(dep, true);
});
// require code
_require(options.code, true);
// require tests
options.tests.forEach(function(res) {
_require(res, false);
});

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var fs = require('fs'),
util = require('util'),
_ = require('underscore'),
bunker;
try {
bunker = require('bunker');
} catch (err) {}
exports.instrument = function(path) {
var src = fs.readFileSync(path, 'utf-8'),
newSrc = bunker(src).compile();
fs.renameSync(src, '__' + src);
fs.writeFileSync(path, newSrc, 'utf-8');
};
exports.restore = function(path) {
// do it only if the original file exist
if (fs.statSync('__' + path).isFile()) {
fs.unlinkSync(path);
fs.renameSync('__' + path, path);
}
};
if (!bunker) {
_.each(exports, function(fn, name) {
exports[name] = function() {
util.error('Module "bunker" is not installed.'.red);
process.exit(1);
};
});
}

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var Table = require('cli-table');
var data,
log = console.log;
data = {
assertions: [],
tests: [],
summaries: []
};
exports.assertion = function(d) {
if (d) {
data.assertions.push(d);
}
return data.assertions;
};
exports.test = function(d) {
if (d) {
data.tests.push(d);
}
return data.tests;
};
exports.summary = function(d) {
if (d) {
data.summaries.push(d);
}
return data.summaries;
};
/**
* Get global tests stats in unified format
*/
exports.stats = function() {
var stats = {
files: 0,
assertions: 0,
failed: 0,
passed: 0,
runtime: 0
};
data.summaries.forEach(function(file) {
stats.files++;
stats.assertions += file.total;
stats.failed += file.failed;
stats.passed += file.passed;
stats.runtime += file.runtime;
});
stats.tests = data.tests.length;
return stats;
};
/**
* Reset global stats data
*/
exports.reset = function() {
data = {
assertions: [],
tests: [],
summaries: []
};
};
var print = exports.print = {};
print.assertions = function() {
var table,
currentModule, module,
currentTest, test;
table = new Table({
head: ['Module', 'Test', 'Assertion', 'Result'],
colWidths: [40, 40, 40, 8]
});
data.assertions.forEach(function(data) {
// just easier to read the table
if (data.module === currentModule) {
module = '';
} else {
module = currentModule = data.module;
}
// just easier to read the table
if (data.test === currentTest) {
test = '';
} else {
test = currentTest = data.test;
}
table.push([module, test, data.message, data.result ? 'ok' : 'fail']);
});
log('\nAssertions:\n' + table.toString());
};
print.errors = function() {
var errors = [];
data.assertions.forEach(function(data) {
if (!data.result) {
errors.push(data);
}
});
if (errors.length) {
log('\n\nErrors:');
errors.forEach(function(data) {
log('\nModule: ' + data.module + ' Test: ' + data.test);
if (data.message) {
log(data.message);
}
if (data.source) {
log(data.source);
}
if (data.expected != null || data.actual != null) {
//it will be an error if data.expected !== data.actual, but if they're
//both undefined, it means that they were just not filled out because
//no assertions were hit (likely due to code error that would have been logged as source or message).
log('Actual value:');
log(data.actual);
log('Expected value:');
log(data.expected);
}
});
}
};
print.tests = function() {
var table,
currentModule, module;
table = new Table({
head: ['Module', 'Test', 'Failed', 'Passed', 'Total'],
colWidths: [40, 40, 8, 8, 8]
});
data.tests.forEach(function(data) {
// just easier to read the table
if (data.module === currentModule) {
module = '';
} else {
module = currentModule = data.module;
}
table.push([module, data.name, data.failed, data.passed, data.total]);
});
log('\nTests:\n' + table.toString());
};
print.summary = function() {
var table, fileColWidth = 50;
table = new Table({
head: ['File', 'Failed', 'Passed', 'Total', 'Runtime'],
colWidths: [fileColWidth + 2, 10, 10, 10, 10]
});
data.summaries.forEach(function(data) {
var code = data.code;
// truncate file name
if (code.length > fileColWidth) {
code = '...' + code.slice(code.length - fileColWidth + 3);
}
table.push([code, data.failed, data.passed, data.total, data.runtime]);
});
log('\nSummary:\n' + table.toString());
};
print.globalSummary = function() {
var table,
data = exports.stats();
table = new Table({
head: ['Files', 'Tests', 'Assertions', 'Failed', 'Passed', 'Runtime'],
colWidths: [12, 12, 12, 12, 12, 12]
});
table.push([data.files, data.tests, data.assertions, data.failed,
data.passed, data.runtime]);
log('\nGlobal summary:\n' + table.toString());
};

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var fs = require('fs'),
path = require('path'),
coverage = require('./coverage'),
cp = require('child_process'),
_ = require('underscore'),
log = exports.log = require('./log'),
util = require('util');
var options,
noop = function() {};
options = exports.options = {
// logging options
log: {
// log assertions overview
assertions: true,
// log expected and actual values for failed tests
errors: true,
// log tests overview
tests: true,
// log summary
summary: true,
// log global summary (all files)
globalSummary: true,
// log currently testing code file
testing: true
},
// run test coverage tool
coverage: false,
// define dependencies, which are required then before code
deps: null,
// define namespace your code will be attached to on global['your namespace']
namespace: null
};
/**
* Run one spawned instance with tests
* @param {Object} opts
* @param {Function} callback
*/
function runOne(opts, callback) {
var child;
child = cp.fork(
__dirname + '/child.js',
[JSON.stringify(opts)],
{env: process.env}
);
function kill() {
process.removeListener('exit', kill);
child.kill();
}
child.on('message', function(msg) {
if (msg.event === 'assertionDone') {
log.assertion(msg.data);
} else if (msg.event === 'testDone') {
log.test(msg.data);
} else if (msg.event === 'done') {
msg.data.code = opts.code.path;
log.summary(msg.data);
if (opts.log.testing) {
util.print('done');
}
callback(null, msg.data);
kill();
} else if (msg.event === 'uncaughtException') {
callback(new Error('Uncaught exception in child process.'));
kill();
}
});
process.on('exit', kill);
if (opts.log.testing) {
util.print('\nTesting ', opts.code.path + ' ... ');
}
}
/**
* Make an absolute path from relative
* @param {string|Object} file
* @return {Object}
*/
function absPath(file) {
if (typeof file === 'string') {
file = {path: file};
}
if (file.path.charAt(0) != '/') {
file.path = path.resolve(process.cwd(), file.path);
}
return file;
}
/**
* Convert path or array of paths to array of abs paths
* @param {Array|string} files
* @return {Array}
*/
function absPaths(files) {
var ret = [];
if (Array.isArray(files)) {
files.forEach(function(file) {
ret.push(absPath(file));
});
} else if (files) {
ret.push(absPath(files));
}
return ret;
}
/**
* Run tests in spawned node instance async for every test.
* @param {Object|Array} files
* @param {Function} callback optional
*/
exports.run = function(files, callback) {
var filesCount = 0;
callback || (callback = noop);
if (!Array.isArray(files)) {
files = [files];
}
files.forEach(function(file) {
var opts = _.extend({}, options, file);
!opts.log && (opts.log = {});
opts.deps = absPaths(opts.deps);
opts.code = absPath(opts.code);
opts.tests = absPaths(opts.tests);
function done(err, stat) {
if (err) {
return callback(err);
}
filesCount++;
if (filesCount >= files.length) {
_.each(opts.log, function(val, name) {
if (val && log.print[name]) {
log.print[name]();
}
})
callback(null, log.stats());
}
}
if (opts.coverage) {
coverage.instrument(opts.code);
} else {
runOne(opts, done);
}
});
};
/**
* Set options
* @param {Object}
*/
exports.setup = function(opts) {
_.extend(options, opts);
};

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.DS_Store

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test:
node test/test.js
.PHONY: test

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module.exports = require('./lib/argsparser');

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/**
* Parser arguments array
* @param {Array} args optional arguments arrray.
* @return {Object} opts key value hash.
* @export
*/
exports.parse = function(args) {
// args is optional, default is process.argv
args = args || process.argv;
var opts = {}, curSwitch;
args.forEach(function(arg) {
// its a switch
if (/^(-|--)/.test(arg) || !curSwitch) {
opts[arg] = true;
curSwitch = arg;
// this arg is a data
} else {
if (arg === 'false') {
arg = false;
} else if (arg === 'true') {
arg = true;
} else if (!isNaN(arg)) {
arg = Number(arg);
}
// it was a boolean switch per default,
// now it has got a val
if (typeof opts[curSwitch] === 'boolean') {
opts[curSwitch] = arg;
} else if (Array.isArray(opts[curSwitch])) {
opts[curSwitch].push(arg);
} else {
opts[curSwitch] = [opts[curSwitch], arg];
}
}
});
return opts;
};

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{
"name": "argsparser",
"description": "A tiny command line arguments parser",
"version": "0.0.6",
"author": {
"name": "Oleg Slobodskoi",
"email": "oleg008@gmail.com"
},
"repository": {
"type": "git",
"url": "http://github.com/kof/node-argsparser.git"
},
"keywords": [
"arguments",
"options",
"command line",
"parser"
],
"engines": {
"node": ">= 0.2.0"
},
"scripts": {
"test": "node ./test/test.js"
},
"licenses": [
{
"type": "MIT",
"url": "http://www.opensource.org/licenses/mit-license.php"
}
],
"readme": "## Yet another tiny arguments parser for node\n\n## Features\n * extremely tiny\n * instead to parse all possible spellings, it uses just some simple rules\n\n## How this parser works\nThe target is to get a key-value object from an array. A key can be the first element or element prefixed by \"-\" and \"--\" (switch). \nSo the parser loops through the array and looks for keys. After he could detect an a key all next elements will be added as a value of this key until he find another key.\nIf there is no value, then the key is true (boolean). If there are a lot of values, then the key is an array.\n\n## Examples\n\nnode script.js -> {\"node\": \"script.js\"}\n\nnode script.js -o -> {\"node\": \"script.js\", \"-o\": true}\n\nnode script.js -o test -> {\"node\": \"script.js\", \"-o\": \"test\"}\n\nnode script.js -a testa --b testb -> {node: \"script.js\", \"-a\": \"testa\", \"--b\": \"testb\"}\n \nnode script.js -paths /test.js /test1.js -> {node: \"script.js\", \"-paths\": [\"/test.js\", \"/test1.js\"]}\n\n## Usage\n\n // per default it parses process.argv\n var args = require( \"argsparser\" ).parse(); // {\"node\": \"/path/to/your/script.js\"}\n \n // optional you can pass your own arguments array\n var args = require( \"argsparser\" ).parse([\"-a\", \"test\"]); // {\"-a\": \"test\"}\n\n \n## Installation\n npm install argsparser ",
"readmeFilename": "readme.md",
"_id": "argsparser@0.0.6",
"_from": "argsparser@0.0.6"
}

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@ -1,34 +0,0 @@
## Yet another tiny arguments parser for node
## Features
* extremely tiny
* instead to parse all possible spellings, it uses just some simple rules
## How this parser works
The target is to get a key-value object from an array. A key can be the first element or element prefixed by "-" and "--" (switch).
So the parser loops through the array and looks for keys. After he could detect an a key all next elements will be added as a value of this key until he find another key.
If there is no value, then the key is true (boolean). If there are a lot of values, then the key is an array.
## Examples
node script.js -> {"node": "script.js"}
node script.js -o -> {"node": "script.js", "-o": true}
node script.js -o test -> {"node": "script.js", "-o": "test"}
node script.js -a testa --b testb -> {node: "script.js", "-a": "testa", "--b": "testb"}
node script.js -paths /test.js /test1.js -> {node: "script.js", "-paths": ["/test.js", "/test1.js"]}
## Usage
// per default it parses process.argv
var args = require( "argsparser" ).parse(); // {"node": "/path/to/your/script.js"}
// optional you can pass your own arguments array
var args = require( "argsparser" ).parse(["-a", "test"]); // {"-a": "test"}
## Installation
npm install argsparser

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@ -1,39 +0,0 @@
var a = require('assert'),
util = require('util'),
parse = require('../lib/argsparser').parse;
util.print('Run tests...\n');
a.deepEqual(parse(), {node: __filename}, 'node script.js');
a.deepEqual(parse(['-o']), {'-o': true}, 'node script.js -o');
a.deepEqual(parse(['-o', 'true']), {'-o': true}, 'node script.js -o true');
a.deepEqual(parse(['-o', 'false']), {'-o': false}, 'node script.js -o false');
a.deepEqual(parse(['-o', '123']), {'-o': 123}, 'node script.js -o 123');
a.deepEqual(parse(['--token', 'bla--bla']), {'--token': 'bla--bla'}, 'node script.js --token bla--bla');
a.deepEqual(parse(['-o', '123.456']), {'-o': 123.456}, 'node script.js -o 123.456');
a.deepEqual(parse(['-o', 'test']), {'-o': 'test'}, 'node script.js -o test');
a.deepEqual(parse(['-a', 'testa', '-b', 'testb']), {'-a': 'testa', '-b': 'testb'}, 'node script.js -a testa -b testb');
a.deepEqual(parse(['--a', 'testa', '--b', 'testb']), {'--a': 'testa', '--b': 'testb'}, 'node script.js --a testa --b testb ');
a.deepEqual(parse(['-a', 'testa', '--b', 'testb']), {'-a': 'testa', '--b': 'testb'}, 'node script.js -a testa --b testb');
a.deepEqual(parse(['--a', 'testa', '-b', 'testb']), {'--a': 'testa', '-b': 'testb'}, 'node script.js --a testa -b testb');
a.deepEqual(parse(['-paths', '/test.js', '/test1.js']), {'-paths': ['/test.js', '/test1.js']}, 'node script.js -paths /test.js /test1.js');
a.deepEqual(parse(['--paths', '/test.js', '/test1.js']), {'--paths': ['/test.js', '/test1.js']}, 'node script.js --paths /test.js /test1.js');
a.deepEqual(parse(['--paths', '/test.js', '/test1.js', '-a', 'testa']), {'--paths': ['/test.js', '/test1.js'], '-a': 'testa'}, 'node script.js --paths /test.js /test1.js -a testa');
a.deepEqual(parse(['--port', '80', '8080']), {'--port': [80, 8080]}, 'node server.js --port 80 8080');
util.print('All tests ok\n');

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@ -1 +0,0 @@
node_modules

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@ -1,4 +0,0 @@
language: node_js
node_js:
- 0.4
- 0.6

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@ -1,82 +0,0 @@
bunker
======
Bunker is a module to calculate code coverage using native javascript
[burrito](https://github.com/substack/node-burrito) AST trickery.
[![build status](https://secure.travis-ci.org/substack/node-bunker.png)](http://travis-ci.org/substack/node-bunker)
![code coverage](http://substack.net/images/code_coverage.png)
examples
========
tiny
----
````javascript
var bunker = require('bunker');
var b = bunker('var x = 0; for (var i = 0; i < 30; i++) { x++ }');
var counts = {};
b.on('node', function (node) {
if (!counts[node.id]) {
counts[node.id] = { times : 0, node : node };
}
counts[node.id].times ++;
});
b.run();
Object.keys(counts).forEach(function (key) {
var count = counts[key];
console.log(count.times + ' : ' + count.node.source());
});
````
output:
$ node example/tiny.js
1 : var x=0;
31 : i<30
30 : i++
30 : x++;
30 : x++
methods
=======
var bunker = require('bunker');
var b = bunker(src)
-------------------
Create a new bunker code coverageifier with some source `src`.
The bunker object `b` is an `EventEmitter` that emits `'node'` events with two
parameters:
* `node` - the [burrito](https://github.com/substack/node-burrito) node object
* `stack` - the stack, [stackedy](https://github.com/substack/node-stackedy) style
b.include(src)
--------------
Include some source into the bunker.
b.compile()
-----------
Return the source wrapped with burrito.
b.assign(context={})
--------------------
Assign the statement-tracking functions into `context`.
b.run(context={})
-----------------
Run the source using `vm.runInNewContext()` with some `context`.
The statement-tracking functions will be added to `context` by `assign()`.

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@ -1,51 +0,0 @@
var bunker = require('bunker');
var b = bunker('(' + function () {
function beep () {
var x = 0;
for (var i = 0; i < 1000; i++) {
for (var j = 0; j < 100; j++) {
x += j;
}
}
return x;
}
beep();
} + ')()');
var counts = {};
b.on('node', function (node) {
if (!counts[node.id]) {
counts[node.id] = { times : 0, node : node, elapsed : 0 };
}
counts[node.id].times ++;
var now = Date.now();
if (last.id !== undefined) {
counts[last.id].elapsed += last.
}
if (node.name === 'call') {
var start = now;
last.id = node.id;
counts[node.id].elapsed += Date.now() - start;
}
else {
counts[node.id].elapsed += now - last;
last = now;
}
});
b.run();
Object.keys(counts).forEach(function (key) {
var count = counts[key];
console.log(
[ count.times, count.node.source(), count.elapsed ]
.join(' : ')
);
});

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@ -1,18 +0,0 @@
var bunker = require('bunker');
var b = bunker('var x = 0; for (var i = 0; i < 30; i++) { x++ }');
var counts = {};
b.on('node', function (node) {
if (!counts[node.id]) {
counts[node.id] = { times : 0, node : node };
}
counts[node.id].times ++;
});
b.run();
Object.keys(counts).forEach(function (key) {
var count = counts[key];
console.log(count.times + ' : ' + count.node.source());
});

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@ -1,31 +0,0 @@
var bunker = require('bunker');
var fs = require('fs');
var src = fs.readFileSync(__dirname + '/src.js', 'utf8');
var counts = {};
var b = bunker(src);
b.on('node', function (node) {
if (!counts[node.id]) {
counts[node.id] = { times : 0, node : node };
}
counts[node.id].times ++;
});
b.run({
setInterval : setInterval,
clearInterval : clearInterval,
end : function () {
Object.keys(counts)
.sort(function (a, b) {
return counts[b].times - counts[a].times
})
.forEach(function (key) {
var count = counts[key];
console.log(
count.times + ' : ' + count.node.source()
);
})
;
}
});

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@ -1,18 +0,0 @@
function boop () {
for (var i = 0; i < 30; i++) {
nop();
}
}
function nop () {
return undefined;
}
var times = 0;
var iv = setInterval(function () {
if (++times === 10) {
clearInterval(iv);
end();
}
else boop()
}, 100);

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@ -1,116 +0,0 @@
var burrito = require('burrito');
var vm = require('vm');
var EventEmitter = require('events').EventEmitter;
module.exports = function (src) {
var b = new Bunker();
if (src) b.include(src);
return b;
};
function Bunker () {
this.sources = [];
this.nodes = [];
this.names = {
call : burrito.generateName(6),
expr : burrito.generateName(6),
stat : burrito.generateName(6),
return : burrito.generateName(6)
};
}
Bunker.prototype = new EventEmitter;
Bunker.prototype.include = function (src) {
this.sources.push(src);
this.source = null;
return this;
};
Bunker.prototype.compile = function () {
var src = this.sources.join('\n');
var nodes = this.nodes;
var names = this.names;
return burrito(src, function (node) {
var i = nodes.length;
if (node.name === 'call') {
nodes.push(node);
node.wrap(names.call + '(' + i + ')(%s)');
}
else if (node.name === 'stat' || node.name === 'throw'
|| node.name === 'var') {
nodes.push(node);
node.wrap('{' + names.stat + '(' + i + ');%s}');
}
else if (node.name === 'return') {
nodes.push(node);
// We need to wrap the new source in a function definition
// so that UglifyJS will allow the presence of return
var stat = names.stat + '(' + i + ');';
var wrapped = 'function ' + names.return + '() {'
+ stat + node.source()
+'}'
;
var parsed = burrito.parse(wrapped);
// Remove the function definition from the AST
parsed[1] = parsed[1][0][3];
node.state.update(parsed, true);
}
else if (node.name === 'binary') {
nodes.push(node);
node.wrap(names.expr + '(' + i + ')(%s)');
}
else if (node.name === 'unary-postfix' || node.name === 'unary-prefix') {
nodes.push(node);
node.wrap(names.expr + '(' + i + ')(%s)');
}
if (i !== nodes.length) {
node.id = i;
}
});
};
Bunker.prototype.assign = function (context) {
if (!context) context = {};
var self = this;
var stack = [];
context[self.names.call] = function (i) {
var node = self.nodes[i];
stack.unshift(node);
self.emit('node', node, stack);
return function (expr) {
stack.shift();
return expr;
};
};
context[self.names.expr] = function (i) {
var node = self.nodes[i];
self.emit('node', node, stack);
return function (expr) {
return expr;
};
};
context[self.names.stat] = function (i) {
var node = self.nodes[i];
self.emit('node', node, stack);
};
return context;
};
Bunker.prototype.run = function (context) {
var src = this.compile();
vm.runInNewContext(src, this.assign(context));
return this;
};

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@ -1,4 +0,0 @@
language: node_js
node_js:
- 0.4
- 0.6

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@ -1,187 +0,0 @@
burrito
=======
Burrito makes it easy to do crazy stuff with the javascript AST.
This is super useful if you want to roll your own stack traces or build a code
coverage tool.
[![build status](https://secure.travis-ci.org/substack/node-burrito.png)](http://travis-ci.org/substack/node-burrito)
![node.wrap("burrito")](http://substack.net/images/burrito.png)
examples
========
microwave
---------
examples/microwave.js
````javascript
var burrito = require('burrito');
var res = burrito.microwave('Math.sin(2)', function (node) {
if (node.name === 'num') node.wrap('Math.PI / %s');
});
console.log(res); // sin(pi / 2) == 1
````
output:
1
wrap
----
examples/wrap.js
````javascript
var burrito = require('burrito');
var src = burrito('f() && g(h())\nfoo()', function (node) {
if (node.name === 'call') node.wrap('qqq(%s)');
});
console.log(src);
````
output:
qqq(f()) && qqq(g(qqq(h())));
qqq(foo());
methods
=======
var burrito = require('burrito');
burrito(code, cb)
-----------------
Given some source `code` and a function `trace`, walk the ast by expression.
The `cb` gets called with a node object described below.
If `code` is an Array then it is assumbed to be an AST which you can generate
yourself with `burrito.parse()`. The AST must be annotated, so make sure to
`burrito.parse(src, false, true)`.
burrito.microwave(code, context={}, cb)
---------------------------------------
Like `burrito()` except the result is run using
`vm.runInNewContext(res, context)`.
node object
===========
node.name
---------
Name is a string that contains the type of the expression as named by uglify.
node.wrap(s)
------------
Wrap the current expression in `s`.
If `s` is a string, `"%s"` will be replaced with the stringified current
expression.
If `s` is a function, it is called with the stringified current expression and
should return a new stringified expression.
If the `node.name === "binary"`, you get the subterms "%a" and "%b" to play with
too. These subterms are applied if `s` is a function too: `s(expr, a, b)`.
Protip: to insert multiple statements you can use javascript's lesser-known block
syntax that it gets from C:
````javascript
if (node.name === 'stat') node.wrap('{ foo(); %s }')
````
node.node
---------
raw ast data generated by uglify
node.value
----------
`node.node.slice(1)` to skip the annotations
node.start
----------
The start location of the expression, like this:
````javascript
{ type: 'name',
value: 'b',
line: 0,
col: 3,
pos: 3,
nlb: false,
comments_before: [] }
````
node.end
--------
The end location of the expression, formatted the same as `node.start`.
node.state
----------
The state of the traversal using traverse.
node.source()
-------------
Returns a stringified version of the expression.
node.parent()
-------------
Returns the parent `node` or `null` if the node is the root element.
node.label()
------------
Return the label of the present node or `null` if there is no label.
Labels are returned for "call", "var", "defun", and "function" nodes.
Returns an array for "var" nodes since `var` statements can
contain multiple labels in assignment.
install
=======
With [npm](http://npmjs.org) you can just:
npm install burrito
in the browser
==============
Burrito works in browser with
[browserify](https://github.com/substack/node-browserify).
It has been tested against:
* Internet Explorer 5.5, 6.0, 7.0, 8.0, 9.0
* Firefox 3.5
* Chrome 6.0
* Opera 10.6
* Safari 5.0
kudos
=====
Heavily inspired by (and previously mostly lifted outright from) isaacs's nifty
tmp/instrument.js thingy from uglify-js.

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@ -1,8 +0,0 @@
var burrito = require('burrito');
var res = burrito.microwave('Math.sin(2)', function (node) {
console.dir(node);
if (node.name === 'num') node.wrap('Math.PI / %s');
});
console.log(res); // sin(pi / 2) == 1

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@ -1,14 +0,0 @@
<html>
<head>
<script type="text/javascript" src="/browserify.js"></script>
<style type="text/css">
pre {
white-space: pre;
word-wrap: break-word;
}
</style>
</head>
<body>
<pre id="output"></pre>
</body>
</html>

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@ -1,17 +0,0 @@
var burrito = require('burrito');
var json = require('jsonify');
var src = [
'function f () { g() }',
'function g () { h() }',
'function h () { throw "moo" + Array(x).join("!") }',
'var x = 4',
'f()'
].join('\r\n');
window.onload = function () {
burrito(src, function (node) {
document.body.innerHTML += node.name + '<br>\n';
});
};
if (document.readyState === 'complete') window.onload();

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@ -1,12 +0,0 @@
var express = require('express');
var browserify = require('browserify');
var app = express.createServer();
app.use(express.static(__dirname));
app.use(browserify({
entry : __dirname + '/main.js',
watch : true,
}));
app.listen(8081);
console.log('Listening on :8081');

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@ -1,7 +0,0 @@
var burrito = require('burrito');
var src = burrito('f() && g(h())\nfoo()', function (node) {
if (node.name === 'call') node.wrap('qqq(%s)');
});
console.log(src);

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@ -1,208 +0,0 @@
var uglify = require('uglify-js');
var parser = uglify.parser;
var parse = function (expr) {
if (typeof expr !== 'string') throw 'expression should be a string';
try {
var ast = parser.parse.apply(null, arguments);
}
catch (err) {
if (err.message === undefined
|| err.line === undefined
|| err.col === undefined
|| err.pos === undefined
) { throw err }
var e = new SyntaxError(
err.message
+ '\n at line ' + err.line + ':' + err.col + ' in expression:\n\n'
+ ' ' + expr.split(/\r?\n/)[err.line]
);
e.original = err;
e.line = err.line;
e.col = err.col;
e.pos = err.pos;
throw e;
}
return ast;
};
var deparse = function (ast, b) {
return uglify.uglify.gen_code(ast, { beautify : b });
};
var traverse = require('traverse');
var vm = require('vm');
var burrito = module.exports = function (code, cb) {
var ast = Array_isArray(code)
? code // already an ast
: parse(code.toString(), false, true)
;
var ast_ = traverse(ast).map(function mapper () {
wrapNode(this, cb);
});
return deparse(parse(deparse(ast_)), true);
};
var wrapNode = burrito.wrapNode = function (state, cb) {
var node = state.node;
var ann = Array_isArray(node) && node[0]
&& typeof node[0] === 'object' && node[0].name
? node[0]
: null
;
if (!ann) return undefined;
var self = {
name : ann.name,
node : node,
start : node[0].start,
end : node[0].end,
value : node.slice(1),
state : state
};
self.wrap = function (s) {
var subsrc = deparse(
traverse(node).map(function (x) {
if (!this.isRoot) wrapNode(this, cb)
})
);
if (self.name === 'binary') {
var a = deparse(traverse(node[2]).map(function (x) {
if (!this.isRoot) wrapNode(this, cb)
}));
var b = deparse(traverse(node[3]).map(function (x) {
if (!this.isRoot) wrapNode(this, cb)
}));
}
var src = '';
if (typeof s === 'function') {
if (self.name === 'binary') {
src = s(subsrc, a, b);
}
else {
src = s(subsrc);
}
}
else {
src = s.toString()
.replace(/%s/g, function () {
return subsrc
})
;
if (self.name === 'binary') {
src = src
.replace(/%a/g, function () { return a })
.replace(/%b/g, function () { return b })
;
}
}
var expr = parse(src);
state.update(expr, true);
};
var cache = {};
self.parent = state.isRoot ? null : function () {
if (!cache.parent) {
var s = state;
var x;
do {
s = s.parent;
if (s) x = wrapNode(s);
} while (s && !x);
cache.parent = x;
}
return cache.parent;
};
self.source = function () {
if (!cache.source) cache.source = deparse(node);
return cache.source;
};
self.label = function () {
return burrito.label(self);
};
if (cb) cb.call(state, self);
if (self.node[0].name === 'conditional') {
self.wrap('[%s][0]');
}
return self;
}
burrito.microwave = function (code, context, cb) {
if (!cb) { cb = context; context = {} };
if (!context) context = {};
var src = burrito(code, cb);
return vm.runInNewContext(src, context);
};
burrito.generateName = function (len) {
var name = '';
var lower = '$'.charCodeAt(0);
var upper = 'z'.charCodeAt(0);
while (name.length < len) {
var c = String.fromCharCode(Math.floor(
Math.random() * (upper - lower + 1) + lower
));
if ((name + c).match(/^[A-Za-z_$][A-Za-z0-9_$]*$/)) name += c;
}
return name;
};
burrito.parse = parse;
burrito.deparse = deparse;
burrito.label = function (node) {
if (node.name === 'call') {
if (typeof node.value[0] === 'string') {
return node.value[0];
}
else if (node.value[0] && typeof node.value[0][1] === 'string') {
return node.value[0][1];
}
else if (node.value[0][0] === 'dot') {
return node.value[0][node.value[0].length - 1];
}
else {
return null;
}
}
else if (node.name === 'var') {
return node.value[0].map(function (x) { return x[0] });
}
else if (node.name === 'defun') {
return node.value[0];
}
else if (node.name === 'function') {
return node.value[0];
}
else {
return null;
}
};
var Array_isArray = Array.isArray || function isArray (xs) {
return Object.prototype.toString.call(xs) === '[object Array]';
};

View File

@ -1,24 +0,0 @@
Copyright 2010 James Halliday (mail@substack.net)
This project is free software released under the MIT/X11 license:
http://www.opensource.org/licenses/mit-license.php
Copyright 2010 James Halliday (mail@substack.net)
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

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@ -1,237 +0,0 @@
traverse
========
Traverse and transform objects by visiting every node on a recursive walk.
examples
========
transform negative numbers in-place
-----------------------------------
negative.js
````javascript
var traverse = require('traverse');
var obj = [ 5, 6, -3, [ 7, 8, -2, 1 ], { f : 10, g : -13 } ];
traverse(obj).forEach(function (x) {
if (x < 0) this.update(x + 128);
});
console.dir(obj);
````
Output:
[ 5, 6, 125, [ 7, 8, 126, 1 ], { f: 10, g: 115 } ]
collect leaf nodes
------------------
leaves.js
````javascript
var traverse = require('traverse');
var obj = {
a : [1,2,3],
b : 4,
c : [5,6],
d : { e : [7,8], f : 9 },
};
var leaves = traverse(obj).reduce(function (acc, x) {
if (this.isLeaf) acc.push(x);
return acc;
}, []);
console.dir(leaves);
````
Output:
[ 1, 2, 3, 4, 5, 6, 7, 8, 9 ]
scrub circular references
-------------------------
scrub.js:
````javascript
var traverse = require('traverse');
var obj = { a : 1, b : 2, c : [ 3, 4 ] };
obj.c.push(obj);
var scrubbed = traverse(obj).map(function (x) {
if (this.circular) this.remove()
});
console.dir(scrubbed);
````
output:
{ a: 1, b: 2, c: [ 3, 4 ] }
context
=======
Each method that takes a callback has a context (its `this` object) with these
attributes:
this.node
---------
The present node on the recursive walk
this.path
---------
An array of string keys from the root to the present node
this.parent
-----------
The context of the node's parent.
This is `undefined` for the root node.
this.key
--------
The name of the key of the present node in its parent.
This is `undefined` for the root node.
this.isRoot, this.notRoot
-------------------------
Whether the present node is the root node
this.isLeaf, this.notLeaf
-------------------------
Whether or not the present node is a leaf node (has no children)
this.level
----------
Depth of the node within the traversal
this.circular
-------------
If the node equals one of its parents, the `circular` attribute is set to the
context of that parent and the traversal progresses no deeper.
this.update(value, stopHere=false)
----------------------------------
Set a new value for the present node.
All the elements in `value` will be recursively traversed unless `stopHere` is
true.
this.remove(stopHere=false)
-------------
Remove the current element from the output. If the node is in an Array it will
be spliced off. Otherwise it will be deleted from its parent.
this.delete(stopHere=false)
-------------
Delete the current element from its parent in the output. Calls `delete` even on
Arrays.
this.before(fn)
---------------
Call this function before any of the children are traversed.
You can assign into `this.keys` here to traverse in a custom order.
this.after(fn)
--------------
Call this function after any of the children are traversed.
this.pre(fn)
------------
Call this function before each of the children are traversed.
this.post(fn)
-------------
Call this function after each of the children are traversed.
methods
=======
.map(fn)
--------
Execute `fn` for each node in the object and return a new object with the
results of the walk. To update nodes in the result use `this.update(value)`.
.forEach(fn)
------------
Execute `fn` for each node in the object but unlike `.map()`, when
`this.update()` is called it updates the object in-place.
.reduce(fn, acc)
----------------
For each node in the object, perform a
[left-fold](http://en.wikipedia.org/wiki/Fold_(higher-order_function))
with the return value of `fn(acc, node)`.
If `acc` isn't specified, `acc` is set to the root object for the first step
and the root element is skipped.
.paths()
--------
Return an `Array` of every possible non-cyclic path in the object.
Paths are `Array`s of string keys.
.nodes()
--------
Return an `Array` of every node in the object.
.clone()
--------
Create a deep clone of the object.
install
=======
Using [npm](http://npmjs.org) do:
$ npm install traverse
test
====
Using [expresso](http://github.com/visionmedia/expresso) do:
$ expresso
100% wahoo, your stuff is not broken!
in the browser
==============
Use [browserify](https://github.com/substack/node-browserify) to run traverse in
the browser.
traverse has been tested and works with:
* Internet Explorer 5.5, 6.0, 7.0, 8.0, 9.0
* Firefox 3.5
* Chrome 6.0
* Opera 10.6
* Safari 5.0

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@ -1,16 +0,0 @@
var traverse = require('traverse');
var id = 54;
var callbacks = {};
var obj = { moo : function () {}, foo : [2,3,4, function () {}] };
var scrubbed = traverse(obj).map(function (x) {
if (typeof x === 'function') {
callbacks[id] = { id : id, f : x, path : this.path };
this.update('[Function]');
id++;
}
});
console.dir(scrubbed);
console.dir(callbacks);

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@ -1,15 +0,0 @@
var traverse = require('traverse');
var obj = {
a : [1,2,3],
b : 4,
c : [5,6],
d : { e : [7,8], f : 9 },
};
var leaves = traverse(obj).reduce(function (acc, x) {
if (this.isLeaf) acc.push(x);
return acc;
}, []);
console.dir(leaves);

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@ -1,8 +0,0 @@
var traverse = require('traverse');
var obj = [ 5, 6, -3, [ 7, 8, -2, 1 ], { f : 10, g : -13 } ];
traverse(obj).forEach(function (x) {
if (x < 0) this.update(x + 128);
});
console.dir(obj);

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@ -1,10 +0,0 @@
// scrub out circular references
var traverse = require('traverse');
var obj = { a : 1, b : 2, c : [ 3, 4 ] };
obj.c.push(obj);
var scrubbed = traverse(obj).map(function (x) {
if (this.circular) this.remove()
});
console.dir(scrubbed);

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@ -1,38 +0,0 @@
#!/usr/bin/env node
var traverse = require('traverse');
var obj = [ 'five', 6, -3, [ 7, 8, -2, 1 ], { f : 10, g : -13 } ];
var s = '';
traverse(obj).forEach(function to_s (node) {
if (Array.isArray(node)) {
this.before(function () { s += '[' });
this.post(function (child) {
if (!child.isLast) s += ',';
});
this.after(function () { s += ']' });
}
else if (typeof node == 'object') {
this.before(function () { s += '{' });
this.pre(function (x, key) {
to_s(key);
s += ':';
});
this.post(function (child) {
if (!child.isLast) s += ',';
});
this.after(function () { s += '}' });
}
else if (typeof node == 'string') {
s += '"' + node.toString().replace(/"/g, '\\"') + '"';
}
else if (typeof node == 'function') {
s += 'null';
}
else {
s += node.toString();
}
});
console.log('JSON.stringify: ' + JSON.stringify(obj));
console.log('this stringify: ' + s);

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@ -1,267 +0,0 @@
module.exports = Traverse;
function Traverse (obj) {
if (!(this instanceof Traverse)) return new Traverse(obj);
this.value = obj;
}
Traverse.prototype.get = function (ps) {
var node = this.value;
for (var i = 0; i < ps.length; i ++) {
var key = ps[i];
if (!Object.hasOwnProperty.call(node, key)) {
node = undefined;
break;
}
node = node[key];
}
return node;
};
Traverse.prototype.set = function (ps, value) {
var node = this.value;
for (var i = 0; i < ps.length - 1; i ++) {
var key = ps[i];
if (!Object.hasOwnProperty.call(node, key)) node[key] = {};
node = node[key];
}
node[ps[i]] = value;
return value;
};
Traverse.prototype.map = function (cb) {
return walk(this.value, cb, true);
};
Traverse.prototype.forEach = function (cb) {
this.value = walk(this.value, cb, false);
return this.value;
};
Traverse.prototype.reduce = function (cb, init) {
var skip = arguments.length === 1;
var acc = skip ? this.value : init;
this.forEach(function (x) {
if (!this.isRoot || !skip) {
acc = cb.call(this, acc, x);
}
});
return acc;
};
Traverse.prototype.paths = function () {
var acc = [];
this.forEach(function (x) {
acc.push(this.path);
});
return acc;
};
Traverse.prototype.nodes = function () {
var acc = [];
this.forEach(function (x) {
acc.push(this.node);
});
return acc;
};
Traverse.prototype.clone = function () {
var parents = [], nodes = [];
return (function clone (src) {
for (var i = 0; i < parents.length; i++) {
if (parents[i] === src) {
return nodes[i];
}
}
if (typeof src === 'object' && src !== null) {
var dst = copy(src);
parents.push(src);
nodes.push(dst);
forEach(Object_keys(src), function (key) {
dst[key] = clone(src[key]);
});
parents.pop();
nodes.pop();
return dst;
}
else {
return src;
}
})(this.value);
};
function walk (root, cb, immutable) {
var path = [];
var parents = [];
var alive = true;
return (function walker (node_) {
var node = immutable ? copy(node_) : node_;
var modifiers = {};
var keepGoing = true;
var state = {
node : node,
node_ : node_,
path : [].concat(path),
parent : parents[parents.length - 1],
parents : parents,
key : path.slice(-1)[0],
isRoot : path.length === 0,
level : path.length,
circular : null,
update : function (x, stopHere) {
if (!state.isRoot) {
state.parent.node[state.key] = x;
}
state.node = x;
if (stopHere) keepGoing = false;
},
'delete' : function (stopHere) {
delete state.parent.node[state.key];
if (stopHere) keepGoing = false;
},
remove : function (stopHere) {
if (Array_isArray(state.parent.node)) {
state.parent.node.splice(state.key, 1);
}
else {
delete state.parent.node[state.key];
}
if (stopHere) keepGoing = false;
},
keys : null,
before : function (f) { modifiers.before = f },
after : function (f) { modifiers.after = f },
pre : function (f) { modifiers.pre = f },
post : function (f) { modifiers.post = f },
stop : function () { alive = false },
block : function () { keepGoing = false }
};
if (!alive) return state;
if (typeof node === 'object' && node !== null) {
state.keys = Object_keys(node);
state.isLeaf = state.keys.length == 0;
for (var i = 0; i < parents.length; i++) {
if (parents[i].node_ === node_) {
state.circular = parents[i];
break;
}
}
}
else {
state.isLeaf = true;
}
state.notLeaf = !state.isLeaf;
state.notRoot = !state.isRoot;
// use return values to update if defined
var ret = cb.call(state, state.node);
if (ret !== undefined && state.update) state.update(ret);
if (modifiers.before) modifiers.before.call(state, state.node);
if (!keepGoing) return state;
if (typeof state.node == 'object'
&& state.node !== null && !state.circular) {
parents.push(state);
forEach(state.keys, function (key, i) {
path.push(key);
if (modifiers.pre) modifiers.pre.call(state, state.node[key], key);
var child = walker(state.node[key]);
if (immutable && Object.hasOwnProperty.call(state.node, key)) {
state.node[key] = child.node;
}
child.isLast = i == state.keys.length - 1;
child.isFirst = i == 0;
if (modifiers.post) modifiers.post.call(state, child);
path.pop();
});
parents.pop();
}
if (modifiers.after) modifiers.after.call(state, state.node);
return state;
})(root).node;
}
function copy (src) {
if (typeof src === 'object' && src !== null) {
var dst;
if (Array_isArray(src)) {
dst = [];
}
else if (src instanceof Date) {
dst = new Date(src);
}
else if (src instanceof Boolean) {
dst = new Boolean(src);
}
else if (src instanceof Number) {
dst = new Number(src);
}
else if (src instanceof String) {
dst = new String(src);
}
else if (Object.create && Object.getPrototypeOf) {
dst = Object.create(Object.getPrototypeOf(src));
}
else if (src.__proto__ || src.constructor.prototype) {
var proto = src.__proto__ || src.constructor.prototype || {};
var T = function () {};
T.prototype = proto;
dst = new T;
if (!dst.__proto__) dst.__proto__ = proto;
}
forEach(Object_keys(src), function (key) {
dst[key] = src[key];
});
return dst;
}
else return src;
}
var Object_keys = Object.keys || function keys (obj) {
var res = [];
for (var key in obj) res.push(key)
return res;
};
var Array_isArray = Array.isArray || function isArray (xs) {
return Object.prototype.toString.call(xs) === '[object Array]';
};
var forEach = function (xs, fn) {
if (xs.forEach) return xs.forEach(fn)
else for (var i = 0; i < xs.length; i++) {
fn(xs[i], i, xs);
}
};
forEach(Object_keys(Traverse.prototype), function (key) {
Traverse[key] = function (obj) {
var args = [].slice.call(arguments, 1);
var t = Traverse(obj);
return t[key].apply(t, args);
};
});

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@ -1,10 +0,0 @@
// scrub out circular references
var traverse = require('./index.js');
var obj = { a : 1, b : 2, c : [ 3, 4 ] };
obj.c.push(obj);
var scrubbed = traverse(obj).map(function (x) {
if (this.circular) this.remove()
});
console.dir(scrubbed);

View File

@ -1,24 +0,0 @@
{
"name": "traverse",
"version": "0.5.2",
"description": "Traverse and transform objects by visiting every node on a recursive walk",
"author": {
"name": "James Halliday"
},
"license": "MIT/X11",
"main": "./index",
"repository": {
"type": "git",
"url": "http://github.com/substack/js-traverse.git"
},
"devDependencies": {
"expresso": "0.7.x"
},
"scripts": {
"test": "expresso"
},
"readme": "traverse\n========\n\nTraverse and transform objects by visiting every node on a recursive walk.\n\nexamples\n========\n\ntransform negative numbers in-place\n-----------------------------------\n\nnegative.js\n\n````javascript\nvar traverse = require('traverse');\nvar obj = [ 5, 6, -3, [ 7, 8, -2, 1 ], { f : 10, g : -13 } ];\n\ntraverse(obj).forEach(function (x) {\n if (x < 0) this.update(x + 128);\n});\n\nconsole.dir(obj);\n````\n\nOutput:\n\n [ 5, 6, 125, [ 7, 8, 126, 1 ], { f: 10, g: 115 } ]\n\ncollect leaf nodes\n------------------\n\nleaves.js\n\n````javascript\nvar traverse = require('traverse');\n\nvar obj = {\n a : [1,2,3],\n b : 4,\n c : [5,6],\n d : { e : [7,8], f : 9 },\n};\n\nvar leaves = traverse(obj).reduce(function (acc, x) {\n if (this.isLeaf) acc.push(x);\n return acc;\n}, []);\n\nconsole.dir(leaves);\n````\n\nOutput:\n\n [ 1, 2, 3, 4, 5, 6, 7, 8, 9 ]\n\nscrub circular references\n-------------------------\n\nscrub.js:\n\n````javascript\nvar traverse = require('traverse');\n\nvar obj = { a : 1, b : 2, c : [ 3, 4 ] };\nobj.c.push(obj);\n\nvar scrubbed = traverse(obj).map(function (x) {\n if (this.circular) this.remove()\n});\nconsole.dir(scrubbed);\n````\n\noutput:\n\n { a: 1, b: 2, c: [ 3, 4 ] }\n\ncontext\n=======\n\nEach method that takes a callback has a context (its `this` object) with these\nattributes:\n\nthis.node\n---------\n\nThe present node on the recursive walk\n\nthis.path\n---------\n\nAn array of string keys from the root to the present node\n\nthis.parent\n-----------\n\nThe context of the node's parent.\nThis is `undefined` for the root node.\n\nthis.key\n--------\n\nThe name of the key of the present node in its parent.\nThis is `undefined` for the root node.\n\nthis.isRoot, this.notRoot\n-------------------------\n\nWhether the present node is the root node\n\nthis.isLeaf, this.notLeaf\n-------------------------\n\nWhether or not the present node is a leaf node (has no children)\n\nthis.level\n----------\n\nDepth of the node within the traversal\n\nthis.circular\n-------------\n\nIf the node equals one of its parents, the `circular` attribute is set to the\ncontext of that parent and the traversal progresses no deeper.\n\nthis.update(value, stopHere=false)\n----------------------------------\n\nSet a new value for the present node.\n\nAll the elements in `value` will be recursively traversed unless `stopHere` is\ntrue.\n\nthis.remove(stopHere=false)\n-------------\n\nRemove the current element from the output. If the node is in an Array it will\nbe spliced off. Otherwise it will be deleted from its parent.\n\nthis.delete(stopHere=false)\n-------------\n\nDelete the current element from its parent in the output. Calls `delete` even on\nArrays.\n\nthis.before(fn)\n---------------\n\nCall this function before any of the children are traversed.\n\nYou can assign into `this.keys` here to traverse in a custom order.\n\nthis.after(fn)\n--------------\n\nCall this function after any of the children are traversed.\n\nthis.pre(fn)\n------------\n\nCall this function before each of the children are traversed.\n\nthis.post(fn)\n-------------\n\nCall this function after each of the children are traversed.\n\nmethods\n=======\n\n.map(fn)\n--------\n\nExecute `fn` for each node in the object and return a new object with the\nresults of the walk. To update nodes in the result use `this.update(value)`.\n\n.forEach(fn)\n------------\n\nExecute `fn` for each node in the object but unlike `.map()`, when\n`this.update()` is called it updates the object in-place.\n\n.reduce(fn, acc)\n----------------\n\nFor each node in the object, perform a\n[left-fold](http://en.wikipedia.org/wiki/Fold_(higher-order_function))\nwith the return value of `fn(acc, node)`.\n\nIf `acc` isn't specified, `acc` is set to the root object for the first step\nand the root element is skipped.\n\n.paths()\n--------\n\nReturn an `Array` of every possible non-cyclic path in the object.\nPaths are `Array`s of string keys.\n\n.nodes()\n--------\n\nReturn an `Array` of every node in the object.\n\n.clone()\n--------\n\nCreate a deep clone of the object.\n\ninstall\n=======\n\nUsing [npm](http://npmjs.org) do:\n\n $ npm install traverse\n\ntest\n====\n\nUsing [expresso](http://github.com/visionmedia/expresso) do:\n\n $ expresso\n \n 100% wahoo, your stuff is not broken!\n\nin the browser\n==============\n\nUse [browserify](https://github.com/substack/node-browserify) to run traverse in\nthe browser.\n\ntraverse has been tested and works with:\n\n* Internet Explorer 5.5, 6.0, 7.0, 8.0, 9.0\n* Firefox 3.5\n* Chrome 6.0\n* Opera 10.6\n* Safari 5.0\n",
"readmeFilename": "README.markdown",
"_id": "traverse@0.5.2",
"_from": "traverse@~0.5.1"
}

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@ -1,115 +0,0 @@
var assert = require('assert');
var Traverse = require('../');
var deepEqual = require('./lib/deep_equal');
var util = require('util');
exports.circular = function () {
var obj = { x : 3 };
obj.y = obj;
var foundY = false;
Traverse(obj).forEach(function (x) {
if (this.path.join('') == 'y') {
assert.equal(
util.inspect(this.circular.node),
util.inspect(obj)
);
foundY = true;
}
});
assert.ok(foundY);
};
exports.deepCirc = function () {
var obj = { x : [ 1, 2, 3 ], y : [ 4, 5 ] };
obj.y[2] = obj;
var times = 0;
Traverse(obj).forEach(function (x) {
if (this.circular) {
assert.deepEqual(this.circular.path, []);
assert.deepEqual(this.path, [ 'y', 2 ]);
times ++;
}
});
assert.deepEqual(times, 1);
};
exports.doubleCirc = function () {
var obj = { x : [ 1, 2, 3 ], y : [ 4, 5 ] };
obj.y[2] = obj;
obj.x.push(obj.y);
var circs = [];
Traverse(obj).forEach(function (x) {
if (this.circular) {
circs.push({ circ : this.circular, self : this, node : x });
}
});
assert.deepEqual(circs[0].self.path, [ 'x', 3, 2 ]);
assert.deepEqual(circs[0].circ.path, []);
assert.deepEqual(circs[1].self.path, [ 'y', 2 ]);
assert.deepEqual(circs[1].circ.path, []);
assert.deepEqual(circs.length, 2);
};
exports.circDubForEach = function () {
var obj = { x : [ 1, 2, 3 ], y : [ 4, 5 ] };
obj.y[2] = obj;
obj.x.push(obj.y);
Traverse(obj).forEach(function (x) {
if (this.circular) this.update('...');
});
assert.deepEqual(obj, { x : [ 1, 2, 3, [ 4, 5, '...' ] ], y : [ 4, 5, '...' ] });
};
exports.circDubMap = function () {
var obj = { x : [ 1, 2, 3 ], y : [ 4, 5 ] };
obj.y[2] = obj;
obj.x.push(obj.y);
var c = Traverse(obj).map(function (x) {
if (this.circular) {
this.update('...');
}
});
assert.deepEqual(c, { x : [ 1, 2, 3, [ 4, 5, '...' ] ], y : [ 4, 5, '...' ] });
};
exports.circClone = function () {
var obj = { x : [ 1, 2, 3 ], y : [ 4, 5 ] };
obj.y[2] = obj;
obj.x.push(obj.y);
var clone = Traverse.clone(obj);
assert.ok(obj !== clone);
assert.ok(clone.y[2] === clone);
assert.ok(clone.y[2] !== obj);
assert.ok(clone.x[3][2] === clone);
assert.ok(clone.x[3][2] !== obj);
assert.deepEqual(clone.x.slice(0,3), [1,2,3]);
assert.deepEqual(clone.y.slice(0,2), [4,5]);
};
exports.circMapScrub = function () {
var obj = { a : 1, b : 2 };
obj.c = obj;
var scrubbed = Traverse(obj).map(function (node) {
if (this.circular) this.remove();
});
assert.deepEqual(
Object.keys(scrubbed).sort(),
[ 'a', 'b' ]
);
assert.ok(deepEqual(scrubbed, { a : 1, b : 2 }));
assert.equal(obj.c, obj);
};

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@ -1,35 +0,0 @@
var assert = require('assert');
var Traverse = require('../');
exports.dateEach = function () {
var obj = { x : new Date, y : 10, z : 5 };
var counts = {};
Traverse(obj).forEach(function (node) {
var t = (node instanceof Date && 'Date') || typeof node;
counts[t] = (counts[t] || 0) + 1;
});
assert.deepEqual(counts, {
object : 1,
Date : 1,
number : 2,
});
};
exports.dateMap = function () {
var obj = { x : new Date, y : 10, z : 5 };
var res = Traverse(obj).map(function (node) {
if (typeof node === 'number') this.update(node + 100);
});
assert.ok(obj.x !== res.x);
assert.deepEqual(res, {
x : obj.x,
y : 110,
z : 105,
});
};

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@ -1,220 +0,0 @@
var assert = require('assert');
var traverse = require('../');
var deepEqual = require('./lib/deep_equal');
exports.deepDates = function () {
assert.ok(
deepEqual(
{ d : new Date, x : [ 1, 2, 3 ] },
{ d : new Date, x : [ 1, 2, 3 ] }
),
'dates should be equal'
);
var d0 = new Date;
setTimeout(function () {
assert.ok(
!deepEqual(
{ d : d0, x : [ 1, 2, 3 ], },
{ d : new Date, x : [ 1, 2, 3 ] }
),
'microseconds should count in date equality'
);
}, 5);
};
exports.deepCircular = function () {
var a = [1];
a.push(a); // a = [ 1, *a ]
var b = [1];
b.push(a); // b = [ 1, [ 1, *a ] ]
assert.ok(
!deepEqual(a, b),
'circular ref mount points count towards equality'
);
var c = [1];
c.push(c); // c = [ 1, *c ]
assert.ok(
deepEqual(a, c),
'circular refs are structurally the same here'
);
var d = [1];
d.push(a); // c = [ 1, [ 1, *d ] ]
assert.ok(
deepEqual(b, d),
'non-root circular ref structural comparison'
);
};
exports.deepInstances = function () {
assert.ok(
!deepEqual([ new Boolean(false) ], [ false ]),
'boolean instances are not real booleans'
);
assert.ok(
!deepEqual([ new String('x') ], [ 'x' ]),
'string instances are not real strings'
);
assert.ok(
!deepEqual([ new Number(4) ], [ 4 ]),
'number instances are not real numbers'
);
assert.ok(
deepEqual([ new RegExp('x') ], [ /x/ ]),
'regexp instances are real regexps'
);
assert.ok(
!deepEqual([ new RegExp(/./) ], [ /../ ]),
'these regexps aren\'t the same'
);
assert.ok(
!deepEqual(
[ function (x) { return x * 2 } ],
[ function (x) { return x * 2 } ]
),
'functions with the same .toString() aren\'t necessarily the same'
);
var f = function (x) { return x * 2 };
assert.ok(
deepEqual([ f ], [ f ]),
'these functions are actually equal'
);
};
exports.deepEqual = function () {
assert.ok(
!deepEqual([ 1, 2, 3 ], { 0 : 1, 1 : 2, 2 : 3 }),
'arrays are not objects'
);
};
exports.falsy = function () {
assert.ok(
!deepEqual([ undefined ], [ null ]),
'null is not undefined!'
);
assert.ok(
!deepEqual([ null ], [ undefined ]),
'undefined is not null!'
);
assert.ok(
!deepEqual(
{ a : 1, b : 2, c : [ 3, undefined, 5 ] },
{ a : 1, b : 2, c : [ 3, null, 5 ] }
),
'undefined is not null, however deeply!'
);
assert.ok(
!deepEqual(
{ a : 1, b : 2, c : [ 3, undefined, 5 ] },
{ a : 1, b : 2, c : [ 3, null, 5 ] }
),
'null is not undefined, however deeply!'
);
assert.ok(
!deepEqual(
{ a : 1, b : 2, c : [ 3, undefined, 5 ] },
{ a : 1, b : 2, c : [ 3, null, 5 ] }
),
'null is not undefined, however deeply!'
);
};
exports.deletedArrayEqual = function () {
var xs = [ 1, 2, 3, 4 ];
delete xs[2];
var ys = Object.create(Array.prototype);
ys[0] = 1;
ys[1] = 2;
ys[3] = 4;
assert.ok(
deepEqual(xs, ys),
'arrays with deleted elements are only equal to'
+ ' arrays with similarly deleted elements'
);
assert.ok(
!deepEqual(xs, [ 1, 2, undefined, 4 ]),
'deleted array elements cannot be undefined'
);
assert.ok(
!deepEqual(xs, [ 1, 2, null, 4 ]),
'deleted array elements cannot be null'
);
};
exports.deletedObjectEqual = function () {
var obj = { a : 1, b : 2, c : 3 };
delete obj.c;
assert.ok(
deepEqual(obj, { a : 1, b : 2 }),
'deleted object elements should not show up'
);
assert.ok(
!deepEqual(obj, { a : 1, b : 2, c : undefined }),
'deleted object elements are not undefined'
);
assert.ok(
!deepEqual(obj, { a : 1, b : 2, c : null }),
'deleted object elements are not null'
);
};
exports.emptyKeyEqual = function () {
assert.ok(!deepEqual(
{ a : 1 }, { a : 1, '' : 55 }
));
};
exports.deepArguments = function () {
assert.ok(
!deepEqual(
[ 4, 5, 6 ],
(function () { return arguments })(4, 5, 6)
),
'arguments are not arrays'
);
assert.ok(
deepEqual(
(function () { return arguments })(4, 5, 6),
(function () { return arguments })(4, 5, 6)
),
'arguments should equal'
);
};
exports.deepUn = function () {
assert.ok(!deepEqual({ a : 1, b : 2 }, undefined));
assert.ok(!deepEqual({ a : 1, b : 2 }, {}));
assert.ok(!deepEqual(undefined, { a : 1, b : 2 }));
assert.ok(!deepEqual({}, { a : 1, b : 2 }));
assert.ok(deepEqual(undefined, undefined));
assert.ok(deepEqual(null, null));
assert.ok(!deepEqual(undefined, null));
};
exports.deepLevels = function () {
var xs = [ 1, 2, [ 3, 4, [ 5, 6 ] ] ];
assert.ok(!deepEqual(xs, []));
};

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@ -1,17 +0,0 @@
var assert = require('assert');
var Traverse = require('../');
var EventEmitter = require('events').EventEmitter;
exports['check instanceof on node elems'] = function () {
var counts = { emitter : 0 };
Traverse([ new EventEmitter, 3, 4, { ev : new EventEmitter }])
.forEach(function (node) {
if (node instanceof EventEmitter) counts.emitter ++;
})
;
assert.equal(counts.emitter, 2);
};

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@ -1,42 +0,0 @@
var assert = require('assert');
var Traverse = require('../');
exports['interface map'] = function () {
var obj = { a : [ 5,6,7 ], b : { c : [8] } };
assert.deepEqual(
Traverse.paths(obj)
.sort()
.map(function (path) { return path.join('/') })
.slice(1)
.join(' ')
,
'a a/0 a/1 a/2 b b/c b/c/0'
);
assert.deepEqual(
Traverse.nodes(obj),
[
{ a: [ 5, 6, 7 ], b: { c: [ 8 ] } },
[ 5, 6, 7 ], 5, 6, 7,
{ c: [ 8 ] }, [ 8 ], 8
]
);
assert.deepEqual(
Traverse.map(obj, function (node) {
if (typeof node == 'number') {
return node + 1000;
}
else if (Array.isArray(node)) {
return node.join(' ');
}
}),
{ a: '5 6 7', b: { c: '8' } }
);
var nodes = 0;
Traverse.forEach(obj, function (node) { nodes ++ });
assert.deepEqual(nodes, 8);
};

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@ -1,47 +0,0 @@
var assert = require('assert');
var Traverse = require('../');
exports['json test'] = function () {
var id = 54;
var callbacks = {};
var obj = { moo : function () {}, foo : [2,3,4, function () {}] };
var scrubbed = Traverse(obj).map(function (x) {
if (typeof x === 'function') {
callbacks[id] = { id : id, f : x, path : this.path };
this.update('[Function]');
id++;
}
});
assert.equal(
scrubbed.moo, '[Function]',
'obj.moo replaced with "[Function]"'
);
assert.equal(
scrubbed.foo[3], '[Function]',
'obj.foo[3] replaced with "[Function]"'
);
assert.deepEqual(scrubbed, {
moo : '[Function]',
foo : [ 2, 3, 4, "[Function]" ]
}, 'Full JSON string matches');
assert.deepEqual(
typeof obj.moo, 'function',
'Original obj.moo still a function'
);
assert.deepEqual(
typeof obj.foo[3], 'function',
'Original obj.foo[3] still a function'
);
assert.deepEqual(callbacks, {
54: { id: 54, f : obj.moo, path: [ 'moo' ] },
55: { id: 55, f : obj.foo[3], path: [ 'foo', '3' ] },
}, 'Check the generated callbacks list');
};

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@ -1,29 +0,0 @@
var assert = require('assert');
var Traverse = require('../');
exports['sort test'] = function () {
var acc = [];
Traverse({
a: 30,
b: 22,
id: 9
}).forEach(function (node) {
if ((! Array.isArray(node)) && typeof node === 'object') {
this.before(function(node) {
this.keys = Object.keys(node);
this.keys.sort(function(a, b) {
a = [a === "id" ? 0 : 1, a];
b = [b === "id" ? 0 : 1, b];
return a < b ? -1 : a > b ? 1 : 0;
});
});
}
if (this.isLeaf) acc.push(node);
});
assert.equal(
acc.join(' '),
'9 30 22',
'Traversal in a custom order'
);
};

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@ -1,21 +0,0 @@
var assert = require('assert');
var Traverse = require('../');
exports['leaves test'] = function () {
var acc = [];
Traverse({
a : [1,2,3],
b : 4,
c : [5,6],
d : { e : [7,8], f : 9 }
}).forEach(function (x) {
if (this.isLeaf) acc.push(x);
});
assert.equal(
acc.join(' '),
'1 2 3 4 5 6 7 8 9',
'Traversal in the right(?) order'
);
};

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@ -1,92 +0,0 @@
var traverse = require('../../');
module.exports = function (a, b) {
if (arguments.length !== 2) {
throw new Error(
'deepEqual requires exactly two objects to compare against'
);
}
var equal = true;
var node = b;
traverse(a).forEach(function (y) {
var notEqual = (function () {
equal = false;
//this.stop();
return undefined;
}).bind(this);
//if (node === undefined || node === null) return notEqual();
if (!this.isRoot) {
/*
if (!Object.hasOwnProperty.call(node, this.key)) {
return notEqual();
}
*/
if (typeof node !== 'object') return notEqual();
node = node[this.key];
}
var x = node;
this.post(function () {
node = x;
});
var toS = function (o) {
return Object.prototype.toString.call(o);
};
if (this.circular) {
if (traverse(b).get(this.circular.path) !== x) notEqual();
}
else if (typeof x !== typeof y) {
notEqual();
}
else if (x === null || y === null || x === undefined || y === undefined) {
if (x !== y) notEqual();
}
else if (x.__proto__ !== y.__proto__) {
notEqual();
}
else if (x === y) {
// nop
}
else if (typeof x === 'function') {
if (x instanceof RegExp) {
// both regexps on account of the __proto__ check
if (x.toString() != y.toString()) notEqual();
}
else if (x !== y) notEqual();
}
else if (typeof x === 'object') {
if (toS(y) === '[object Arguments]'
|| toS(x) === '[object Arguments]') {
if (toS(x) !== toS(y)) {
notEqual();
}
}
else if (x instanceof Date || y instanceof Date) {
if (!(x instanceof Date) || !(y instanceof Date)
|| x.getTime() !== y.getTime()) {
notEqual();
}
}
else {
var kx = Object.keys(x);
var ky = Object.keys(y);
if (kx.length !== ky.length) return notEqual();
for (var i = 0; i < kx.length; i++) {
var k = kx[i];
if (!Object.hasOwnProperty.call(y, k)) {
notEqual();
}
}
}
}
});
return equal;
};

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@ -1,252 +0,0 @@
var assert = require('assert');
var Traverse = require('../');
var deepEqual = require('./lib/deep_equal');
exports.mutate = function () {
var obj = { a : 1, b : 2, c : [ 3, 4 ] };
var res = Traverse(obj).forEach(function (x) {
if (typeof x === 'number' && x % 2 === 0) {
this.update(x * 10);
}
});
assert.deepEqual(obj, res);
assert.deepEqual(obj, { a : 1, b : 20, c : [ 3, 40 ] });
};
exports.mutateT = function () {
var obj = { a : 1, b : 2, c : [ 3, 4 ] };
var res = Traverse.forEach(obj, function (x) {
if (typeof x === 'number' && x % 2 === 0) {
this.update(x * 10);
}
});
assert.deepEqual(obj, res);
assert.deepEqual(obj, { a : 1, b : 20, c : [ 3, 40 ] });
};
exports.map = function () {
var obj = { a : 1, b : 2, c : [ 3, 4 ] };
var res = Traverse(obj).map(function (x) {
if (typeof x === 'number' && x % 2 === 0) {
this.update(x * 10);
}
});
assert.deepEqual(obj, { a : 1, b : 2, c : [ 3, 4 ] });
assert.deepEqual(res, { a : 1, b : 20, c : [ 3, 40 ] });
};
exports.mapT = function () {
var obj = { a : 1, b : 2, c : [ 3, 4 ] };
var res = Traverse.map(obj, function (x) {
if (typeof x === 'number' && x % 2 === 0) {
this.update(x * 10);
}
});
assert.deepEqual(obj, { a : 1, b : 2, c : [ 3, 4 ] });
assert.deepEqual(res, { a : 1, b : 20, c : [ 3, 40 ] });
};
exports.clone = function () {
var obj = { a : 1, b : 2, c : [ 3, 4 ] };
var res = Traverse(obj).clone();
assert.deepEqual(obj, res);
assert.ok(obj !== res);
obj.a ++;
assert.deepEqual(res.a, 1);
obj.c.push(5);
assert.deepEqual(res.c, [ 3, 4 ]);
};
exports.cloneT = function () {
var obj = { a : 1, b : 2, c : [ 3, 4 ] };
var res = Traverse.clone(obj);
assert.deepEqual(obj, res);
assert.ok(obj !== res);
obj.a ++;
assert.deepEqual(res.a, 1);
obj.c.push(5);
assert.deepEqual(res.c, [ 3, 4 ]);
};
exports.reduce = function () {
var obj = { a : 1, b : 2, c : [ 3, 4 ] };
var res = Traverse(obj).reduce(function (acc, x) {
if (this.isLeaf) acc.push(x);
return acc;
}, []);
assert.deepEqual(obj, { a : 1, b : 2, c : [ 3, 4 ] });
assert.deepEqual(res, [ 1, 2, 3, 4 ]);
};
exports.reduceInit = function () {
var obj = { a : 1, b : 2, c : [ 3, 4 ] };
var res = Traverse(obj).reduce(function (acc, x) {
if (this.isRoot) assert.fail('got root');
return acc;
});
assert.deepEqual(obj, { a : 1, b : 2, c : [ 3, 4 ] });
assert.deepEqual(res, obj);
};
exports.remove = function () {
var obj = { a : 1, b : 2, c : [ 3, 4 ] };
Traverse(obj).forEach(function (x) {
if (this.isLeaf && x % 2 == 0) this.remove();
});
assert.deepEqual(obj, { a : 1, c : [ 3 ] });
};
exports.removeNoStop = function() {
var obj = { a : 1, b : 2, c : { d: 3, e: 4 }, f: 5 };
var keys = [];
Traverse(obj).forEach(function (x) {
keys.push(this.key)
if (this.key == 'c') this.remove();
});
assert.deepEqual(keys, [undefined, 'a', 'b', 'c', 'd', 'e', 'f'])
}
exports.removeStop = function() {
var obj = { a : 1, b : 2, c : { d: 3, e: 4 }, f: 5 };
var keys = [];
Traverse(obj).forEach(function (x) {
keys.push(this.key)
if (this.key == 'c') this.remove(true);
});
assert.deepEqual(keys, [undefined, 'a', 'b', 'c', 'f'])
}
exports.removeMap = function () {
var obj = { a : 1, b : 2, c : [ 3, 4 ] };
var res = Traverse(obj).map(function (x) {
if (this.isLeaf && x % 2 == 0) this.remove();
});
assert.deepEqual(obj, { a : 1, b : 2, c : [ 3, 4 ] });
assert.deepEqual(res, { a : 1, c : [ 3 ] });
};
exports.delete = function () {
var obj = { a : 1, b : 2, c : [ 3, 4 ] };
Traverse(obj).forEach(function (x) {
if (this.isLeaf && x % 2 == 0) this.delete();
});
assert.ok(!deepEqual(
obj, { a : 1, c : [ 3, undefined ] }
));
assert.ok(deepEqual(
obj, { a : 1, c : [ 3 ] }
));
assert.ok(!deepEqual(
obj, { a : 1, c : [ 3, null ] }
));
};
exports.deleteNoStop = function() {
var obj = { a : 1, b : 2, c : { d: 3, e: 4 } };
var keys = [];
Traverse(obj).forEach(function (x) {
keys.push(this.key)
if (this.key == 'c') this.delete();
});
assert.deepEqual(keys, [undefined, 'a', 'b', 'c', 'd', 'e'])
}
exports.deleteStop = function() {
var obj = { a : 1, b : 2, c : { d: 3, e: 4 } };
var keys = [];
Traverse(obj).forEach(function (x) {
keys.push(this.key)
if (this.key == 'c') this.delete(true);
});
assert.deepEqual(keys, [undefined, 'a', 'b', 'c'])
}
exports.deleteRedux = function () {
var obj = { a : 1, b : 2, c : [ 3, 4, 5 ] };
Traverse(obj).forEach(function (x) {
if (this.isLeaf && x % 2 == 0) this.delete();
});
assert.ok(!deepEqual(
obj, { a : 1, c : [ 3, undefined, 5 ] }
));
assert.ok(deepEqual(
obj, { a : 1, c : [ 3 ,, 5 ] }
));
assert.ok(!deepEqual(
obj, { a : 1, c : [ 3, null, 5 ] }
));
assert.ok(!deepEqual(
obj, { a : 1, c : [ 3, 5 ] }
));
};
exports.deleteMap = function () {
var obj = { a : 1, b : 2, c : [ 3, 4 ] };
var res = Traverse(obj).map(function (x) {
if (this.isLeaf && x % 2 == 0) this.delete();
});
assert.ok(deepEqual(
obj,
{ a : 1, b : 2, c : [ 3, 4 ] }
));
var xs = [ 3, 4 ];
delete xs[1];
assert.ok(deepEqual(
res, { a : 1, c : xs }
));
assert.ok(deepEqual(
res, { a : 1, c : [ 3, ] }
));
assert.ok(deepEqual(
res, { a : 1, c : [ 3 ] }
));
};
exports.deleteMapRedux = function () {
var obj = { a : 1, b : 2, c : [ 3, 4, 5 ] };
var res = Traverse(obj).map(function (x) {
if (this.isLeaf && x % 2 == 0) this.delete();
});
assert.ok(deepEqual(
obj,
{ a : 1, b : 2, c : [ 3, 4, 5 ] }
));
var xs = [ 3, 4, 5 ];
delete xs[1];
assert.ok(deepEqual(
res, { a : 1, c : xs }
));
assert.ok(!deepEqual(
res, { a : 1, c : [ 3, 5 ] }
));
assert.ok(deepEqual(
res, { a : 1, c : [ 3 ,, 5 ] }
));
};

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@ -1,20 +0,0 @@
var Traverse = require('../');
var assert = require('assert');
exports['negative update test'] = function () {
var obj = [ 5, 6, -3, [ 7, 8, -2, 1 ], { f : 10, g : -13 } ];
var fixed = Traverse.map(obj, function (x) {
if (x < 0) this.update(x + 128);
});
assert.deepEqual(fixed,
[ 5, 6, 125, [ 7, 8, 126, 1 ], { f: 10, g: 115 } ],
'Negative values += 128'
);
assert.deepEqual(obj,
[ 5, 6, -3, [ 7, 8, -2, 1 ], { f: 10, g: -13 } ],
'Original references not modified'
);
}

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@ -1,15 +0,0 @@
var assert = require('assert');
var Traverse = require('../');
exports['traverse an object with nested functions'] = function () {
var to = setTimeout(function () {
assert.fail('never ran');
}, 1000);
function Cons (x) {
clearTimeout(to);
assert.equal(x, 10);
};
Traverse(new Cons(10));
};

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@ -1,35 +0,0 @@
var assert = require('assert');
var traverse = require('../');
exports.siblings = function () {
var obj = { a : 1, b : 2, c : [ 4, 5, 6 ] };
var res = traverse(obj).reduce(function (acc, x) {
var p = '/' + this.path.join('/');
if (this.parent) {
acc[p] = {
siblings : this.parent.keys,
key : this.key,
index : this.parent.keys.indexOf(this.key)
};
}
else {
acc[p] = {
siblings : [],
key : this.key,
index : -1
}
}
return acc;
}, {});
assert.deepEqual(res, {
'/' : { siblings : [], key : undefined, index : -1 },
'/a' : { siblings : [ 'a', 'b', 'c' ], key : 'a', index : 0 },
'/b' : { siblings : [ 'a', 'b', 'c' ], key : 'b', index : 1 },
'/c' : { siblings : [ 'a', 'b', 'c' ], key : 'c', index : 2 },
'/c/0' : { siblings : [ '0', '1', '2' ], key : '0', index : 0 },
'/c/1' : { siblings : [ '0', '1', '2' ], key : '1', index : 1 },
'/c/2' : { siblings : [ '0', '1', '2' ], key : '2', index : 2 }
});
};

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@ -1,41 +0,0 @@
var assert = require('assert');
var traverse = require('../');
exports.stop = function () {
var visits = 0;
traverse('abcdefghij'.split('')).forEach(function (node) {
if (typeof node === 'string') {
visits ++;
if (node === 'e') this.stop()
}
});
assert.equal(visits, 5);
};
exports.stopMap = function () {
var s = traverse('abcdefghij'.split('')).map(function (node) {
if (typeof node === 'string') {
if (node === 'e') this.stop()
return node.toUpperCase();
}
}).join('');
assert.equal(s, 'ABCDEfghij');
};
exports.stopReduce = function () {
var obj = {
a : [ 4, 5 ],
b : [ 6, [ 7, 8, 9 ] ]
};
var xs = traverse(obj).reduce(function (acc, node) {
if (this.isLeaf) {
if (node === 7) this.stop();
else acc.push(node)
}
return acc;
}, []);
assert.deepEqual(xs, [ 4, 5, 6 ]);
};

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@ -1,36 +0,0 @@
var assert = require('assert');
var Traverse = require('../');
exports.stringify = function () {
var obj = [ 5, 6, -3, [ 7, 8, -2, 1 ], { f : 10, g : -13 } ];
var s = '';
Traverse(obj).forEach(function (node) {
if (Array.isArray(node)) {
this.before(function () { s += '[' });
this.post(function (child) {
if (!child.isLast) s += ',';
});
this.after(function () { s += ']' });
}
else if (typeof node == 'object') {
this.before(function () { s += '{' });
this.pre(function (x, key) {
s += '"' + key + '"' + ':';
});
this.post(function (child) {
if (!child.isLast) s += ',';
});
this.after(function () { s += '}' });
}
else if (typeof node == 'function') {
s += 'null';
}
else {
s += node.toString();
}
});
assert.equal(s, JSON.stringify(obj));
}

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@ -1,34 +0,0 @@
var traverse = require('../');
var assert = require('assert');
exports.subexpr = function () {
var obj = [ 'a', 4, 'b', 5, 'c', 6 ];
var r = traverse(obj).map(function (x) {
if (typeof x === 'number') {
this.update([ x - 0.1, x, x + 0.1 ], true);
}
});
assert.deepEqual(obj, [ 'a', 4, 'b', 5, 'c', 6 ]);
assert.deepEqual(r, [
'a', [ 3.9, 4, 4.1 ],
'b', [ 4.9, 5, 5.1 ],
'c', [ 5.9, 6, 6.1 ],
]);
};
exports.block = function () {
var obj = [ [ 1 ], [ 2 ], [ 3 ] ];
var r = traverse(obj).map(function (x) {
if (Array.isArray(x) && !this.isRoot) {
if (x[0] === 5) this.block()
else this.update([ [ x[0] + 1 ] ])
}
});
assert.deepEqual(r, [
[ [ [ [ [ 5 ] ] ] ] ],
[ [ [ [ 5 ] ] ] ],
[ [ [ 5 ] ] ],
]);
};

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@ -1,55 +0,0 @@
var assert = require('assert');
var traverse = require('../');
var deepEqual = require('./lib/deep_equal');
exports.super_deep = function () {
var util = require('util');
var a0 = make();
var a1 = make();
assert.ok(deepEqual(a0, a1));
a0.c.d.moo = true;
assert.ok(!deepEqual(a0, a1));
a1.c.d.moo = true;
assert.ok(deepEqual(a0, a1));
// TODO: this one
//a0.c.a = a1;
//assert.ok(!deepEqual(a0, a1));
};
function make () {
var a = { self : 'a' };
var b = { self : 'b' };
var c = { self : 'c' };
var d = { self : 'd' };
var e = { self : 'e' };
a.a = a;
a.b = b;
a.c = c;
b.a = a;
b.b = b;
b.c = c;
c.a = a;
c.b = b;
c.c = c;
c.d = d;
d.a = a;
d.b = b;
d.c = c;
d.d = d;
d.e = e;
e.a = a;
e.b = b;
e.c = c;
e.d = d;
e.e = e;
return a;
}

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@ -1,4 +0,0 @@
.DS_Store
.tmp*~
*.local.*
.pinf-*

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@ -1,571 +0,0 @@
#+TITLE: UglifyJS -- a JavaScript parser/compressor/beautifier
#+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" />
#+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 &amp;&amp; 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

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@ -1,317 +0,0 @@
#! /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."); }
};

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@ -1,75 +0,0 @@
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; }
}

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@ -1,75 +0,0 @@
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"]);

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@ -1,51 +0,0 @@
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;

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@ -1,24 +0,0 @@
{
"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"
}
}

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@ -1,28 +0,0 @@
#! /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."); }
};

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@ -1,403 +0,0 @@
#! /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]);
};
};

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(function(){var a=function(){};return new a(1,2,3,4)})()

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(function(){function a(){}(function(){return new a(1,2,3)})()})()

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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

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var a=a+"a"+"b"+1+c,b=a+"c"+"ds"+123+c,c=a+"c"+123+d+"ds"+c

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function bar(){return--x}function foo(){while(bar());}function mak(){for(;;);}var x=5

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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)

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function x(a){return typeof a=="object"?a:a===42?0:a*2}function y(a){return typeof a=="object"?a:null}

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var a=/^(?:(\w+):)?(?:\/\/(?:(?:([^:@\/]*):?([^:@\/]*))?@)?([^:\/?#])(?::(\d))?)?(..?$|(?:[^?#\/]\/))([^?#]*)(?:\?([^#]))?(?:#(.))?/

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var a={"\b":"\\b","\t":"\\t","\n":"\\n","\f":"\\f","\r":"\\r",'"':'\\"',"\\":"\\\\"}

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