PREFIX = .
DIST_DIR = ${PREFIX}/dist
-RHINO ?= java -jar ${BUILD_DIR}/js.jar
-
-CLOSURE_COMPILER = ${BUILD_DIR}/google-compiler-20100917.jar
-
-MINJAR ?= java -jar ${CLOSURE_COMPILER}
+JS_ENGINE ?= `which node nodejs`
+COMPILER = ${JS_ENGINE} ${BUILD_DIR}/uglify.js --unsafe
BASE_FILES = ${SRC_DIR}/core.js\
${SRC_DIR}/support.js\
lint: ${JQ}
@@echo "Checking jQuery against JSLint..."
- @@${RHINO} build/jslint-check.js
+ @@${JS_ENGINE} build/jslint-check.js
min: ${JQ_MIN}
${JQ_MIN}: ${JQ}
@@echo "Building" ${JQ_MIN}
-
- @@head -15 ${JQ} > ${JQ_MIN}
- @@${MINJAR} --js ${JQ} --warning_level QUIET --js_output_file ${JQ_MIN}.tmp
- @@cat ${JQ_MIN}.tmp >> ${JQ_MIN}
- @@rm -f ${JQ_MIN}.tmp
+ @@${COMPILER} ${JQ} > ${JQ_MIN}
clean:
@@echo "Removing Distribution directory:" ${DIST_DIR}
[jQuery](http://jquery.com/) - New Wave Javascript
-================================
+==================================================
What you need to build your own jQuery
----------------------------------------
-* Make sure that you have Java installed (if you want to build a minified version of jQuery).
-If not, [go to this page](http://java.sun.com/javase/downloads/index.jsp) and download "Java Runtime Environment (JRE) 5.0"
+--------------------------------------
-Build Options
---------------
+In order to build jQuery, you need to have GNU make 3.8 or later, Node.js 0.2 or later, and git 1.7 or later.
+(Earlier versions might work OK, but are not tested.)
-You now have **three** options for building jQuery:
+Windows users have two options:
-* **`make`**: If you have access to common UNIX commands (like `make`, `mkdir`, `rm`, `cat`, and `echo`) then simply type `make` to build all the components.
+1. Install [msysgit](https://code.google.com/p/msysgit/) (Full installer for official Git),
+ [GNU make for Windows](http://gnuwin32.sourceforge.net/packages/make.htm), and a
+ [binary version of Node.js](http://node-js.prcn.co.cc/). Make sure all three packages are installed to the same
+ location (by default, this is C:\Program Files\Git).
+2. Install [Cygwin](http://cygwin.com/) (make sure you install the git, make, and which packages), then either follow
+ the [Node.js build instructions](https://github.com/ry/node/wiki/Building-node.js-on-Cygwin-%28Windows%29) or install
+ the [binary version of Node.js](http://node-js.prcn.co.cc/).
-* **`rake`**: If you have Ruby Rake installed (on either Windows or UNIX/Linux), you can simply type `rake` to build all the components.
+Mac OS users should install Xcode (comes on your Mac OS install DVD, or downloadable from
+[Apple's Xcode site](http://developer.apple.com/technologies/xcode.html)) and
+[http://mxcl.github.com/homebrew/](Homebrew). Once Homebrew is installed, run `brew install git` to install git,
+and `brew install node` to install Node.js.
-* **`ant`**: If you have Ant installed (or are on Windows and don't have access to make). You can download Ant from here: [http://ant.apache.org/bindownload.cgi].
+Linux/BSD users should use their appropriate package managers to install make, git, and node, or build from source
+if you swing that way. Easy-peasy.
-How to build your own jQuery
------------------------------
-
-*Note: If you are using either `rake` or `ant`, substitute your chosen method in place of `make` in the examples below. They work identically for all intents and purposes. Quick reference is also available for `rake` by typing `rake -T` in the `jquery` directory.*
-
-In the main directory of the distribution (the one that this file is in), type
-the following to make all versions of jQuery:
-
- make
-
-*Here are the individual items that are buildable from the Makefile:*
-
- make init
-Pull in all the external dependencies (QUnit, Sizzle) for the project.
-
- make jquery
-
-The standard, uncompressed, jQuery code.
-Makes: `./dist/jquery.js`
-
- make min
-
-A compressed version of jQuery (made the Closure Compiler).
-Makes: `./dist/jquery.min.js`
+How to build your own jQuery
+----------------------------
- make lint
+First, clone a copy of the main jQuery git repo by running `git clone git://github.com/jquery/jquery.git`.
-Tests a build of jQuery against JSLint, looking for potential errors or bits of confusing code.
+Then, to get a complete, minified, jslinted version of jQuery, simply `cd` to the `jquery` directory and type
+`make`. If you don't have Node installed and/or want to make a basic, uncompressed, unlinted version of jQuery, use
+`make jquery` instead of `make`.
- make selector
+The built version of jQuery will be put in the `dist/` subdirectory.
-Builds the selector library for jQuery from Sizzle.
-Makes: `./src/selector.js`
+To remove all built files, run `make clean`.
-Finally, you can remove all the built files using the command:
-
- make clean
Building to a different directory
-----------------------------------
+---------------------------------
-If you want to build jQuery to a directory that is different from the default location, you can...
+If you want to build jQuery to a directory that is different from the default location, you can specify the PREFIX
+directory: `make PREFIX=/home/jquery/test/ [command]`
-**Make only:** Specify the PREFIX directory, for example:
-
- make PREFIX=/home/john/test/ [command]
-
-With this example, the output files would be contained in `/home/john/test/dist/`
+With this example, the output files would end up in `/home/jquery/test/dist/`.
-**Rake only:** Define the DIST_DIR directory, for example:
- rake DIST_DIR=/home/john/test/ [command]
-
-With this example, the output files would be contained in `/home/john/test/`
+Troubleshooting
+---------------
-*In both examples, `[command]` is optional.*
+Sometimes, the various git repositories get into an inconsistent state where builds don't complete properly
+(usually this results in the jquery.js or jquery.min.js being 0 bytes). If this happens, run `make clean`, then
+run `make` again.
-**Ant only:** You cannot currently build to another directory when using Ant.
Questions?
----------
-If you have any questions, please feel free to ask them on the Developing jQuery Core
-forum, which can be found here:
-[http://forum.jquery.com/developing-jquery-core](http://forum.jquery.com/developing-jquery-core)
+If you have any questions, please feel free to ask on the
+[Developing jQuery Core forum](http://forum.jquery.com/developing-jquery-core) or in #jquery on irc.freenode.net.
+++ /dev/null
-prefix = File.dirname( __FILE__ )
-
-# Directory variables
-src_dir = File.join( prefix, 'src' )
-build_dir = File.join( prefix, 'build' )
-test_dir = File.join( prefix, 'test' )
-
-# A different destination directory can be set by
-# setting DIST_DIR before calling rake
-dist_dir = ENV['DIST_DIR'] || File.join( prefix, 'dist' )
-
-base_files = %w{
- intro
- core
- support
- data
- queue
- attributes
- event
- selector
- traversing
- manipulation
- css
- ajax
- ajax/jsonp
- ajax/script
- ajax/xhr
- effects
- offset
- dimensions
- outro
-}.map { |js| File.join( src_dir, "#{js}.js" ) }
-
-# Sizzle, QUnit and jQuery files/dirs
-sizzle_dir = File.join( src_dir, "sizzle" )
-sizzle = File.join( sizzle_dir, "sizzle.js" )
-selector = File.join( src_dir, "selector.js" )
-
-qunit_dir = File.join( test_dir, "qunit" )
-qunit = File.join( qunit_dir, "qunit", "qunit.js" )
-
-jq = File.join( dist_dir, "jquery.js" )
-jq_min = File.join( dist_dir, "jquery.min.js" )
-
-# General Variables
-date = `git log -1`[/^Date:\s+(.+)$/, 1]
-version = File.read( File.join( prefix, 'version.txt' ) ).strip
-
-# Build tools
-rhino = "java -jar #{build_dir}/js.jar"
-minfier = "java -jar #{build_dir}/google-compiler-20100917.jar"
-
-# Turn off output other than needed from `sh` and file commands
-verbose(false)
-
-# Tasks
-task :default => "all"
-
-desc "Builds jQuery; Tests with JSLint; Minifies jQuery"
-task :all => [:jquery, :lint, :min] do
- puts "jQuery build complete."
-end
-
-desc "Builds jQuery: jquery.js (Default task)"
-task :jquery => [:selector, jq]
-
-desc "Builds a minified version of jQuery: jquery.min.js"
-task :min => jq_min
-
-
-task :init => [sizzle, qunit] do
- sizzle_git = File.join(sizzle_dir, '.git')
- qunit_git = File.join(qunit_dir, '.git')
-
- puts "Updating SizzleJS with latest..."
- sh "git --git-dir=#{sizzle_git} pull -q origin master"
-
- puts "Updating QUnit with latest..."
- sh "git --git-dir=#{qunit_git} pull -q origin master"
-end
-
-desc "Removes dist folder, selector.js, and Sizzle/QUnit"
-task :clean do
- puts "Removing Distribution directory: #{dist_dir}..."
- rm_rf dist_dir
-
- puts "Removing built copy of Sizzle..."
- rm_rf selector
-
- puts "Removing cloned directories..."
- rm_rf qunit_dir
- rm_rf sizzle_dir
-end
-
-desc "Rebuilds selector.js from SizzleJS"
-task :selector => [:init, selector]
-
-desc "Tests built jquery.js against JSLint"
-task :lint => jq do
- puts "Checking jQuery against JSLint..."
- sh "#{rhino} " + File.join(build_dir, 'jslint-check.js')
-end
-
-
-# File and Directory Dependencies
-directory dist_dir
-
-file jq => [dist_dir, base_files].flatten do
- puts "Building jquery.js..."
-
- File.open(jq, 'w') do |f|
- f.write cat(base_files).
- gsub(/@DATE/, date).
- gsub(/@VERSION/, version).
- gsub(/.function..jQuery...\{/, '').
- gsub(/\}...jQuery..;/, '')
- end
-end
-
-file jq_min => jq do
- puts "Building jquery.min.js..."
-
- sh "#{minfier} --js #{jq} --warning_level QUIET --js_output_file #{jq_min}"
-
- min = File.read( jq_min )
-
- # Equivilent of "head"
- File.open(jq_min, 'w') do |f|
- f.write File.readlines(jq)[0..14].join()
- f.write min
- end
-end
-
-file selector => [sizzle, :init] do
- puts "Building selector code from Sizzle..."
-
- File.open(selector, 'w') do |f|
- f.write File.read(sizzle).gsub(
- /^.+EXPOSE$\n/,
- '\0' + File.read( File.join( src_dir, 'sizzle-jquery.js' ))
- ).gsub(
- /^window.Sizzle.+$\n/, ''
- )
- end
-end
-
-file sizzle do
- puts "Retrieving SizzleJS from Github..."
- sh "git clone git://github.com/jeresig/sizzle.git #{sizzle_dir}"
-end
-
-file qunit do
- puts "Retrieving QUnit from Github..."
- sh "git clone git://github.com/jquery/qunit.git #{qunit_dir}"
-end
-
-
-def cat( files )
- files.map do |file|
- File.read(file)
- end.join('')
-end
+++ /dev/null
-<project name="jQuery" default="all" basedir=".">
-
- <loadfile property="version" srcfile="version.txt" />
- <property name="PREFIX" value="." />
- <property description="Folder for jquery and min target" name="dist" value="${PREFIX}/dist" />
-
- <property name="JQ" value="${dist}/jquery.js" />
- <property name="JQ_MIN" value="${dist}/jquery.min.js" />
-
- <loadfile property="sizzle-exports" srcfile="src/sizzle-jquery.js" />
-
- <available property="qunit" file="test/qunit" />
- <available property="sizzle" file="src/sizzle" />
-
- <target name="all" depends="jquery,lint,min" />
-
- <target name="qunit-clone" unless="qunit">
- <exec executable="git" outputproperty="git-qunit" >
- <arg line="clone git://github.com/jquery/qunit.git test/qunit" />
- </exec>
- <echo message="git clone qunit: ${git-qunit}" />
- </target>
- <target name="qunit-pull" if="qunit">
- <exec executable="git" outputproperty="git-qunit" dir="test/qunit" >
- <arg line="pull origin master" />
- </exec>
- <echo message="git pull sizzle: ${git-qunit}" />
- </target>
- <target name="sizzle-clone" unless="sizzle">
- <exec executable="git" outputproperty="git-sizzle" >
- <arg line="clone git://github.com/jeresig/sizzle.git src/sizzle" />
- </exec>
- <echo message="git clone sizzle: ${git-sizzle}" />
- </target>
- <target name="sizzle-pull" if="sizzle">
- <exec executable="git" outputproperty="git-sizzle" dir="src/sizzle" >
- <arg line="pull origin master" />
- </exec>
- <echo message="git pull sizzle: ${git-sizzle}" />
- </target>
-
- <target name="init" depends="qunit-clone,qunit-pull,sizzle-clone,sizzle-pull" />
-
- <target name="selector" depends="init" description="Builds the selector library for jQuery from Sizzle.">
- <copy file="src/sizzle/sizzle.js" tofile="src/selector.js" overwrite="true" />
- <replaceregexp match="// EXPOSE(.*) " replace="// EXPOSE\1 ${sizzle-exports}" file="src/selector.js" />
- <replaceregexp match="window.Sizzle(.*) " replace="" file="src/selector.js" />
- </target>
-
- <target name="jquery" depends="init,selector" description="Main jquery build, concatenates source files and replaces @VERSION">
- <echo message="Building ${JQ}" />
- <mkdir dir="${dist}" />
- <concat destfile="${JQ}">
- <fileset file="src/intro.js" />
- <fileset file="src/core.js" />
- <fileset file="src/support.js" />
- <fileset file="src/data.js" />
- <fileset file="src/queue.js" />
- <fileset file="src/attributes.js" />
- <fileset file="src/event.js" />
- <fileset file="src/selector.js" />
- <fileset file="src/traversing.js" />
- <fileset file="src/manipulation.js" />
- <fileset file="src/css.js" />
- <fileset file="src/ajax.js" />
- <fileset file="src/ajax/jsonp.js" />
- <fileset file="src/ajax/script.js" />
- <fileset file="src/ajax/xhr.js" />
- <fileset file="src/effects.js" />
- <fileset file="src/offset.js" />
- <fileset file="src/dimensions.js" />
- <fileset file="src/outro.js" />
- </concat>
- <replaceregexp match="@VERSION" replace="${version}" flags="g" byline="true" file="${JQ}" />
- <exec executable="git" outputproperty="date">
- <arg line="log -1 --pretty=format:%ad" />
- </exec>
- <replaceregexp match="(\(\s*function\s*\(\s*jQuery\s*\)\s*\{)|(\}\s*\)\s*\(\s*jQuery\s*\)\s*;)" flags="g" replace="" file="${JQ}" />
- <replaceregexp match="@DATE" replace="${date}" file="${JQ}" />
- <echo message="${JQ} built." />
- </target>
-
- <target name="lint" depends="jquery" description="Check jQuery against JSLint">
- <exec executable="java">
- <arg line="-jar build/js.jar build/jslint-check.js" />
- </exec>
- </target>
-
- <target name="min" depends="jquery" description="Remove all comments and whitespace, no compression, great in combination with GZip">
- <echo message="Building ${JQ_MIN}" />
- <apply executable="java" parallel="false" verbose="true" dest="${dist}">
- <fileset dir="${dist}">
- <include name="jquery.js" />
- </fileset>
- <arg line="-jar" />
- <arg path="build/google-compiler-20100917.jar" />
- <arg value="--warning_level" />
- <arg value="QUIET" />
- <arg value="--js_output_file" />
- <targetfile />
- <arg value="--js" />
- <mapper type="glob" from="jquery.js" to="tmpmin" />
- </apply>
- <concat destfile="${JQ_MIN}">
- <filelist files="${JQ}, ${dist}/tmpmin" />
- <filterchain>
- <headfilter lines="15" />
- </filterchain>
- </concat>
- <concat destfile="${JQ_MIN}" append="yes">
- <filelist files="${dist}/tmpmin" />
- </concat>
- <delete file="${dist}/tmpmin" />
- <echo message="${JQ_MIN} built." />
- </target>
-
- <target name="clean">
- <delete dir="${dist}" />
- <delete file="src/selector.js" />
- <delete dir="test/qunit" />
- <delete dir="src/sizzle" />
- </target>
-
- <target name="openAjaxMetadata">
- <property name="target" value="openAjaxMetadata-jquery-${version}.xml" />
- <delete file="${dist}/jquery-*.xml" />
- <get src="http://www.exfer.net/jquery/createjQueryXMLDocs.py?version=1.3" dest="${target}" />
- <xslt includes="${target}" excludes="build.xml" destdir="./dist" style="build/style.xsl" extension=".xml" />
- <delete file="${target}" />
- </target>
-
-</project>
-load("build/jslint.js");
-
-var src = readFile("dist/jquery.js");
+var JSLINT = require("./lib/jslint").JSLINT,
+ print = require("sys").print,
+ src = require("fs").readFileSync("dist/jquery.js", "utf8");
JSLINT(src, { evil: true, forin: true, maxerr: 100 });
}
if ( found > 0 ) {
- print( "\n" + found + " Error(s) found." );
+ print( "\n" + found + " Error(s) found.\n" );
} else {
- print( "JSLint check passed." );
+ print( "JSLint check passed.\n" );
}
itself.edition = '2010-02-20';
+ if (typeof exports !== "undefined") {
+ exports.JSLINT = itself;
+ }
+
return itself;
-}());
\ No newline at end of file
+}());
--- /dev/null
+/***********************************************************************
+
+ A JavaScript tokenizer / parser / beautifier / compressor.
+
+ This version is suitable for Node.js. With minimal changes (the
+ exports stuff) it should work on any JS platform.
+
+ This file contains the tokenizer/parser. It is a port to JavaScript
+ of parse-js [1], a JavaScript parser library written in Common Lisp
+ by Marijn Haverbeke. Thank you Marijn!
+
+ [1] http://marijn.haverbeke.nl/parse-js/
+
+ Exported functions:
+
+ - tokenizer(code) -- returns a function. Call the returned
+ function to fetch the next token.
+
+ - parse(code) -- returns an AST of the given JavaScript code.
+
+ -------------------------------- (C) ---------------------------------
+
+ Author: Mihai Bazon
+ <mihai.bazon@gmail.com>
+ http://mihai.bazon.net/blog
+
+ Distributed under the BSD license:
+
+ 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.
+
+ ***********************************************************************/
+
+/* -----[ Tokenizer (constants) ]----- */
+
+var KEYWORDS = array_to_hash([
+ "break",
+ "case",
+ "catch",
+ "const",
+ "continue",
+ "default",
+ "delete",
+ "do",
+ "else",
+ "finally",
+ "for",
+ "function",
+ "if",
+ "in",
+ "instanceof",
+ "new",
+ "return",
+ "switch",
+ "throw",
+ "try",
+ "typeof",
+ "var",
+ "void",
+ "while",
+ "with"
+]);
+
+var RESERVED_WORDS = array_to_hash([
+ "abstract",
+ "boolean",
+ "byte",
+ "char",
+ "class",
+ "debugger",
+ "double",
+ "enum",
+ "export",
+ "extends",
+ "final",
+ "float",
+ "goto",
+ "implements",
+ "import",
+ "int",
+ "interface",
+ "long",
+ "native",
+ "package",
+ "private",
+ "protected",
+ "public",
+ "short",
+ "static",
+ "super",
+ "synchronized",
+ "throws",
+ "transient",
+ "volatile"
+]);
+
+var KEYWORDS_BEFORE_EXPRESSION = array_to_hash([
+ "return",
+ "new",
+ "delete",
+ "throw",
+ "else",
+ "case"
+]);
+
+var KEYWORDS_ATOM = array_to_hash([
+ "false",
+ "null",
+ "true",
+ "undefined"
+]);
+
+var OPERATOR_CHARS = array_to_hash(characters("+-*&%=<>!?|~^"));
+
+var RE_HEX_NUMBER = /^0x[0-9a-f]+$/i;
+var RE_OCT_NUMBER = /^0[0-7]+$/;
+var RE_DEC_NUMBER = /^\d*\.?\d*(?:e[+-]?\d*(?:\d\.?|\.?\d)\d*)?$/i;
+
+var OPERATORS = array_to_hash([
+ "in",
+ "instanceof",
+ "typeof",
+ "new",
+ "void",
+ "delete",
+ "++",
+ "--",
+ "+",
+ "-",
+ "!",
+ "~",
+ "&",
+ "|",
+ "^",
+ "*",
+ "/",
+ "%",
+ ">>",
+ "<<",
+ ">>>",
+ "<",
+ ">",
+ "<=",
+ ">=",
+ "==",
+ "===",
+ "!=",
+ "!==",
+ "?",
+ "=",
+ "+=",
+ "-=",
+ "/=",
+ "*=",
+ "%=",
+ ">>=",
+ "<<=",
+ ">>>=",
+ "~=",
+ "%=",
+ "|=",
+ "^=",
+ "&=",
+ "&&",
+ "||"
+]);
+
+var WHITESPACE_CHARS = array_to_hash(characters(" \n\r\t"));
+
+var PUNC_BEFORE_EXPRESSION = array_to_hash(characters("[{}(,.;:"));
+
+var PUNC_CHARS = array_to_hash(characters("[]{}(),;:"));
+
+var REGEXP_MODIFIERS = array_to_hash(characters("gmsiy"));
+
+/* -----[ Tokenizer ]----- */
+
+function is_alphanumeric_char(ch) {
+ ch = ch.charCodeAt(0);
+ return (ch >= 48 && ch <= 57) ||
+ (ch >= 65 && ch <= 90) ||
+ (ch >= 97 && ch <= 122);
+};
+
+function is_identifier_char(ch) {
+ return is_alphanumeric_char(ch) || ch == "$" || ch == "_";
+};
+
+function is_digit(ch) {
+ ch = ch.charCodeAt(0);
+ return ch >= 48 && ch <= 57;
+};
+
+function parse_js_number(num) {
+ if (RE_HEX_NUMBER.test(num)) {
+ return parseInt(num.substr(2), 16);
+ } else if (RE_OCT_NUMBER.test(num)) {
+ return parseInt(num.substr(1), 8);
+ } else if (RE_DEC_NUMBER.test(num)) {
+ return parseFloat(num);
+ }
+};
+
+function JS_Parse_Error(message, line, col, pos) {
+ this.message = message;
+ this.line = line;
+ this.col = col;
+ this.pos = pos;
+ try {
+ ({})();
+ } catch(ex) {
+ this.stack = ex.stack;
+ };
+};
+
+JS_Parse_Error.prototype.toString = function() {
+ return this.message + " (line: " + this.line + ", col: " + this.col + ", pos: " + this.pos + ")" + "\n\n" + this.stack;
+};
+
+function js_error(message, line, col, pos) {
+ throw new JS_Parse_Error(message, line, col, pos);
+};
+
+function is_token(token, type, val) {
+ return token.type == type && (val == null || token.value == val);
+};
+
+var EX_EOF = {};
+
+function tokenizer($TEXT, skip_comments) {
+
+ var S = {
+ text : $TEXT.replace(/\r\n?|[\n\u2028\u2029]/g, "\n").replace(/^\uFEFF/, ''),
+ pos : 0,
+ tokpos : 0,
+ line : 0,
+ tokline : 0,
+ col : 0,
+ tokcol : 0,
+ newline_before : false,
+ regex_allowed : false
+ };
+
+ function peek() { return S.text.charAt(S.pos); };
+
+ function next(signal_eof) {
+ var ch = S.text.charAt(S.pos++);
+ if (signal_eof && !ch)
+ throw EX_EOF;
+ if (ch == "\n") {
+ S.newline_before = true;
+ ++S.line;
+ S.col = 0;
+ } else {
+ ++S.col;
+ }
+ return ch;
+ };
+
+ function eof() {
+ return !S.peek();
+ };
+
+ function find(what, signal_eof) {
+ var pos = S.text.indexOf(what, S.pos);
+ if (signal_eof && pos == -1) throw EX_EOF;
+ return pos;
+ };
+
+ function start_token() {
+ S.tokline = S.line;
+ S.tokcol = S.col;
+ S.tokpos = S.pos;
+ };
+
+ function token(type, value) {
+ S.regex_allowed = ((type == "operator" && !HOP(UNARY_POSTFIX, value)) ||
+ (type == "keyword" && HOP(KEYWORDS_BEFORE_EXPRESSION, value)) ||
+ (type == "punc" && HOP(PUNC_BEFORE_EXPRESSION, value)));
+ var ret = {
+ type : type,
+ value : value,
+ line : S.tokline,
+ col : S.tokcol,
+ pos : S.tokpos,
+ nlb : S.newline_before
+ };
+ S.newline_before = false;
+ return ret;
+ };
+
+ function skip_whitespace() {
+ while (HOP(WHITESPACE_CHARS, peek()))
+ next();
+ };
+
+ function read_while(pred) {
+ var ret = "", ch = peek(), i = 0;
+ while (ch && pred(ch, i++)) {
+ ret += next();
+ ch = peek();
+ }
+ return ret;
+ };
+
+ function parse_error(err) {
+ js_error(err, S.tokline, S.tokcol, S.tokpos);
+ };
+
+ function read_num(prefix) {
+ var has_e = false, after_e = false, has_x = false, has_dot = prefix == ".";
+ var num = read_while(function(ch, i){
+ if (ch == "x" || ch == "X") {
+ if (has_x) return false;
+ return has_x = true;
+ }
+ if (!has_x && (ch == "E" || ch == "e")) {
+ if (has_e) return false;
+ return has_e = after_e = true;
+ }
+ if (ch == "-") {
+ if (after_e || (i == 0 && !prefix)) return true;
+ return false;
+ }
+ if (ch == "+") return after_e;
+ after_e = false;
+ if (ch == ".") {
+ if (!has_dot)
+ return has_dot = true;
+ return false;
+ }
+ return is_alphanumeric_char(ch);
+ });
+ if (prefix)
+ num = prefix + num;
+ var valid = parse_js_number(num);
+ if (!isNaN(valid)) {
+ return token("num", valid);
+ } else {
+ parse_error("Invalid syntax: " + num);
+ }
+ };
+
+ function read_escaped_char() {
+ var ch = next(true);
+ switch (ch) {
+ case "n" : return "\n";
+ case "r" : return "\r";
+ case "t" : return "\t";
+ case "b" : return "\b";
+ case "v" : return "\v";
+ case "f" : return "\f";
+ case "0" : return "\0";
+ case "x" : return String.fromCharCode(hex_bytes(2));
+ case "u" : return String.fromCharCode(hex_bytes(4));
+ default : return ch;
+ }
+ };
+
+ function hex_bytes(n) {
+ var num = 0;
+ for (; n > 0; --n) {
+ var digit = parseInt(next(true), 16);
+ if (isNaN(digit))
+ parse_error("Invalid hex-character pattern in string");
+ num = (num << 4) | digit;
+ }
+ return num;
+ };
+
+ function read_string() {
+ return with_eof_error("Unterminated string constant", function(){
+ var quote = next(), ret = "";
+ for (;;) {
+ var ch = next(true);
+ if (ch == "\\") ch = read_escaped_char();
+ else if (ch == quote) break;
+ ret += ch;
+ }
+ return token("string", ret);
+ });
+ };
+
+ function read_line_comment() {
+ next();
+ var i = find("\n"), ret;
+ if (i == -1) {
+ ret = S.text.substr(S.pos);
+ S.pos = S.text.length;
+ } else {
+ ret = S.text.substring(S.pos, i);
+ S.pos = i;
+ }
+ return token("comment1", ret);
+ };
+
+ function read_multiline_comment() {
+ next();
+ return with_eof_error("Unterminated multiline comment", function(){
+ var i = find("*/", true),
+ text = S.text.substring(S.pos, i),
+ tok = token("comment2", text);
+ S.pos = i + 2;
+ S.line += text.split("\n").length - 1;
+ S.newline_before = text.indexOf("\n") >= 0;
+ return tok;
+ });
+ };
+
+ function read_regexp() {
+ return with_eof_error("Unterminated regular expression", function(){
+ var prev_backslash = false, regexp = "", ch, in_class = false;
+ while ((ch = next(true))) if (prev_backslash) {
+ regexp += "\\" + ch;
+ prev_backslash = false;
+ } else if (ch == "[") {
+ in_class = true;
+ regexp += ch;
+ } else if (ch == "]" && in_class) {
+ in_class = false;
+ regexp += ch;
+ } else if (ch == "/" && !in_class) {
+ break;
+ } else if (ch == "\\") {
+ prev_backslash = true;
+ } else {
+ regexp += ch;
+ }
+ var mods = read_while(function(ch){
+ return HOP(REGEXP_MODIFIERS, ch);
+ });
+ return token("regexp", [ regexp, mods ]);
+ });
+ };
+
+ function read_operator(prefix) {
+ function grow(op) {
+ var bigger = op + peek();
+ if (HOP(OPERATORS, bigger)) {
+ next();
+ return grow(bigger);
+ } else {
+ return op;
+ }
+ };
+ return token("operator", grow(prefix || next()));
+ };
+
+ var handle_slash = skip_comments ? function() {
+ next();
+ var regex_allowed = S.regex_allowed;
+ switch (peek()) {
+ case "/": read_line_comment(); S.regex_allowed = regex_allowed; return next_token();
+ case "*": read_multiline_comment(); S.regex_allowed = regex_allowed; return next_token();
+ }
+ return S.regex_allowed ? read_regexp() : read_operator("/");
+ } : function() {
+ next();
+ switch (peek()) {
+ case "/": return read_line_comment();
+ case "*": return read_multiline_comment();
+ }
+ return S.regex_allowed ? read_regexp() : read_operator("/");
+ };
+
+ function handle_dot() {
+ next();
+ return is_digit(peek())
+ ? read_num(".")
+ : token("punc", ".");
+ };
+
+ function read_word() {
+ var word = read_while(is_identifier_char);
+ return !HOP(KEYWORDS, word)
+ ? token("name", word)
+ : HOP(OPERATORS, word)
+ ? token("operator", word)
+ : HOP(KEYWORDS_ATOM, word)
+ ? token("atom", word)
+ : token("keyword", word);
+ };
+
+ function with_eof_error(eof_error, cont) {
+ try {
+ return cont();
+ } catch(ex) {
+ if (ex === EX_EOF) parse_error(eof_error);
+ else throw ex;
+ }
+ };
+
+ function next_token(force_regexp) {
+ if (force_regexp)
+ return read_regexp();
+ skip_whitespace();
+ start_token();
+ var ch = peek();
+ if (!ch) return token("eof");
+ if (is_digit(ch)) return read_num();
+ if (ch == '"' || ch == "'") return read_string();
+ if (HOP(PUNC_CHARS, ch)) return token("punc", next());
+ if (ch == ".") return handle_dot();
+ if (ch == "/") return handle_slash();
+ if (HOP(OPERATOR_CHARS, ch)) return read_operator();
+ if (is_identifier_char(ch)) return read_word();
+ parse_error("Unexpected character '" + ch + "'");
+ };
+
+ next_token.context = function(nc) {
+ if (nc) S = nc;
+ return S;
+ };
+
+ return next_token;
+
+};
+
+/* -----[ Parser (constants) ]----- */
+
+var UNARY_PREFIX = array_to_hash([
+ "typeof",
+ "void",
+ "delete",
+ "--",
+ "++",
+ "!",
+ "~",
+ "-",
+ "+"
+]);
+
+var UNARY_POSTFIX = array_to_hash([ "--", "++" ]);
+
+var ASSIGNMENT = (function(a, ret, i){
+ while (i < a.length) {
+ ret[a[i]] = a[i].substr(0, a[i].length - 1);
+ i++;
+ }
+ return ret;
+})(
+ ["+=", "-=", "/=", "*=", "%=", ">>=", "<<=", ">>>=", "~=", "%=", "|=", "^=", "&="],
+ { "=": true },
+ 0
+);
+
+var PRECEDENCE = (function(a, ret){
+ for (var i = 0, n = 1; i < a.length; ++i, ++n) {
+ var b = a[i];
+ for (var j = 0; j < b.length; ++j) {
+ ret[b[j]] = n;
+ }
+ }
+ return ret;
+})(
+ [
+ ["||"],
+ ["&&"],
+ ["|"],
+ ["^"],
+ ["&"],
+ ["==", "===", "!=", "!=="],
+ ["<", ">", "<=", ">=", "in", "instanceof"],
+ [">>", "<<", ">>>"],
+ ["+", "-"],
+ ["*", "/", "%"]
+ ],
+ {}
+);
+
+var STATEMENTS_WITH_LABELS = array_to_hash([ "for", "do", "while", "switch" ]);
+
+var ATOMIC_START_TOKEN = array_to_hash([ "atom", "num", "string", "regexp", "name" ]);
+
+/* -----[ Parser ]----- */
+
+function NodeWithToken(str, start, end) {
+ this.name = str;
+ this.start = start;
+ this.end = end;
+};
+
+NodeWithToken.prototype.toString = function() { return this.name; };
+
+function parse($TEXT, strict_mode, embed_tokens) {
+
+ var S = {
+ input: tokenizer($TEXT, true),
+ token: null,
+ prev: null,
+ peeked: null,
+ in_function: 0,
+ in_loop: 0,
+ labels: []
+ };
+
+ S.token = next();
+
+ function is(type, value) {
+ return is_token(S.token, type, value);
+ };
+
+ function peek() { return S.peeked || (S.peeked = S.input()); };
+
+ function next() {
+ S.prev = S.token;
+ if (S.peeked) {
+ S.token = S.peeked;
+ S.peeked = null;
+ } else {
+ S.token = S.input();
+ }
+ return S.token;
+ };
+
+ function prev() {
+ return S.prev;
+ };
+
+ function croak(msg, line, col, pos) {
+ var ctx = S.input.context();
+ js_error(msg,
+ line != null ? line : ctx.tokline,
+ col != null ? col : ctx.tokcol,
+ pos != null ? pos : ctx.tokpos);
+ };
+
+ function token_error(token, msg) {
+ croak(msg, token.line, token.col);
+ };
+
+ function unexpected(token) {
+ if (token == null)
+ token = S.token;
+ token_error(token, "Unexpected token: " + token.type + " (" + token.value + ")");
+ };
+
+ function expect_token(type, val) {
+ if (is(type, val)) {
+ return next();
+ }
+ token_error(S.token, "Unexpected token " + S.token.type + ", expected " + type);
+ };
+
+ function expect(punc) { return expect_token("punc", punc); };
+
+ function can_insert_semicolon() {
+ return !strict_mode && (
+ S.token.nlb || is("eof") || is("punc", "}")
+ );
+ };
+
+ function semicolon() {
+ if (is("punc", ";")) next();
+ else if (!can_insert_semicolon()) unexpected();
+ };
+
+ function as() {
+ return slice(arguments);
+ };
+
+ function parenthesised() {
+ expect("(");
+ var ex = expression();
+ expect(")");
+ return ex;
+ };
+
+ function add_tokens(str, start, end) {
+ return new NodeWithToken(str, start, end);
+ };
+
+ var statement = embed_tokens ? function() {
+ var start = S.token;
+ var stmt = $statement();
+ stmt[0] = add_tokens(stmt[0], start, prev());
+ return stmt;
+ } : $statement;
+
+ function $statement() {
+ if (is("operator", "/")) {
+ S.peeked = null;
+ S.token = S.input(true); // force regexp
+ }
+ switch (S.token.type) {
+ case "num":
+ case "string":
+ case "regexp":
+ case "operator":
+ case "atom":
+ return simple_statement();
+
+ case "name":
+ return is_token(peek(), "punc", ":")
+ ? labeled_statement(prog1(S.token.value, next, next))
+ : simple_statement();
+
+ case "punc":
+ switch (S.token.value) {
+ case "{":
+ return as("block", block_());
+ case "[":
+ case "(":
+ return simple_statement();
+ case ";":
+ next();
+ return as("block");
+ default:
+ unexpected();
+ }
+
+ case "keyword":
+ switch (prog1(S.token.value, next)) {
+ case "break":
+ return break_cont("break");
+
+ case "continue":
+ return break_cont("continue");
+
+ case "debugger":
+ semicolon();
+ return as("debugger");
+
+ case "do":
+ return (function(body){
+ expect_token("keyword", "while");
+ return as("do", prog1(parenthesised, semicolon), body);
+ })(in_loop(statement));
+
+ case "for":
+ return for_();
+
+ case "function":
+ return function_(true);
+
+ case "if":
+ return if_();
+
+ case "return":
+ if (S.in_function == 0)
+ croak("'return' outside of function");
+ return as("return",
+ is("punc", ";")
+ ? (next(), null)
+ : can_insert_semicolon()
+ ? null
+ : prog1(expression, semicolon));
+
+ case "switch":
+ return as("switch", parenthesised(), switch_block_());
+
+ case "throw":
+ return as("throw", prog1(expression, semicolon));
+
+ case "try":
+ return try_();
+
+ case "var":
+ return prog1(var_, semicolon);
+
+ case "const":
+ return prog1(const_, semicolon);
+
+ case "while":
+ return as("while", parenthesised(), in_loop(statement));
+
+ case "with":
+ return as("with", parenthesised(), statement());
+
+ default:
+ unexpected();
+ }
+ }
+ };
+
+ function labeled_statement(label) {
+ S.labels.push(label);
+ var start = S.token, stat = statement();
+ if (strict_mode && !HOP(STATEMENTS_WITH_LABELS, stat[0]))
+ unexpected(start);
+ S.labels.pop();
+ return as("label", label, stat);
+ };
+
+ function simple_statement() {
+ return as("stat", prog1(expression, semicolon));
+ };
+
+ function break_cont(type) {
+ var name = is("name") ? S.token.value : null;
+ if (name != null) {
+ next();
+ if (!member(name, S.labels))
+ croak("Label " + name + " without matching loop or statement");
+ }
+ else if (S.in_loop == 0)
+ croak(type + " not inside a loop or switch");
+ semicolon();
+ return as(type, name);
+ };
+
+ function for_() {
+ expect("(");
+ var has_var = is("keyword", "var");
+ if (has_var)
+ next();
+ if (is("name") && is_token(peek(), "operator", "in")) {
+ // for (i in foo)
+ var name = S.token.value;
+ next(); next();
+ var obj = expression();
+ expect(")");
+ return as("for-in", has_var, name, obj, in_loop(statement));
+ } else {
+ // classic for
+ var init = is("punc", ";") ? null : has_var ? var_() : expression();
+ expect(";");
+ var test = is("punc", ";") ? null : expression();
+ expect(";");
+ var step = is("punc", ")") ? null : expression();
+ expect(")");
+ return as("for", init, test, step, in_loop(statement));
+ }
+ };
+
+ function function_(in_statement) {
+ var name = is("name") ? prog1(S.token.value, next) : null;
+ if (in_statement && !name)
+ unexpected();
+ expect("(");
+ return as(in_statement ? "defun" : "function",
+ name,
+ // arguments
+ (function(first, a){
+ while (!is("punc", ")")) {
+ if (first) first = false; else expect(",");
+ if (!is("name")) unexpected();
+ a.push(S.token.value);
+ next();
+ }
+ next();
+ return a;
+ })(true, []),
+ // body
+ (function(){
+ ++S.in_function;
+ var loop = S.in_loop;
+ S.in_loop = 0;
+ var a = block_();
+ --S.in_function;
+ S.in_loop = loop;
+ return a;
+ })());
+ };
+
+ function if_() {
+ var cond = parenthesised(), body = statement(), belse;
+ if (is("keyword", "else")) {
+ next();
+ belse = statement();
+ }
+ return as("if", cond, body, belse);
+ };
+
+ function block_() {
+ expect("{");
+ var a = [];
+ while (!is("punc", "}")) {
+ if (is("eof")) unexpected();
+ a.push(statement());
+ }
+ next();
+ return a;
+ };
+
+ var switch_block_ = curry(in_loop, function(){
+ expect("{");
+ var a = [], cur = null;
+ while (!is("punc", "}")) {
+ if (is("eof")) unexpected();
+ if (is("keyword", "case")) {
+ next();
+ cur = [];
+ a.push([ expression(), cur ]);
+ expect(":");
+ }
+ else if (is("keyword", "default")) {
+ next();
+ expect(":");
+ cur = [];
+ a.push([ null, cur ]);
+ }
+ else {
+ if (!cur) unexpected();
+ cur.push(statement());
+ }
+ }
+ next();
+ return a;
+ });
+
+ function try_() {
+ var body = block_(), bcatch, bfinally;
+ if (is("keyword", "catch")) {
+ next();
+ expect("(");
+ if (!is("name"))
+ croak("Name expected");
+ var name = S.token.value;
+ next();
+ expect(")");
+ bcatch = [ name, block_() ];
+ }
+ if (is("keyword", "finally")) {
+ next();
+ bfinally = block_();
+ }
+ if (!bcatch && !bfinally)
+ croak("Missing catch/finally blocks");
+ return as("try", body, bcatch, bfinally);
+ };
+
+ function vardefs() {
+ var a = [];
+ for (;;) {
+ if (!is("name"))
+ unexpected();
+ var name = S.token.value;
+ next();
+ if (is("operator", "=")) {
+ next();
+ a.push([ name, expression(false) ]);
+ } else {
+ a.push([ name ]);
+ }
+ if (!is("punc", ","))
+ break;
+ next();
+ }
+ return a;
+ };
+
+ function var_() {
+ return as("var", vardefs());
+ };
+
+ function const_() {
+ return as("const", vardefs());
+ };
+
+ function new_() {
+ var newexp = expr_atom(false), args;
+ if (is("punc", "(")) {
+ next();
+ args = expr_list(")");
+ } else {
+ args = [];
+ }
+ return subscripts(as("new", newexp, args), true);
+ };
+
+ function expr_atom(allow_calls) {
+ if (is("operator", "new")) {
+ next();
+ return new_();
+ }
+ if (is("operator") && HOP(UNARY_PREFIX, S.token.value)) {
+ return make_unary("unary-prefix",
+ prog1(S.token.value, next),
+ expr_atom(allow_calls));
+ }
+ if (is("punc")) {
+ switch (S.token.value) {
+ case "(":
+ next();
+ return subscripts(prog1(expression, curry(expect, ")")), allow_calls);
+ case "[":
+ next();
+ return subscripts(array_(), allow_calls);
+ case "{":
+ next();
+ return subscripts(object_(), allow_calls);
+ }
+ unexpected();
+ }
+ if (is("keyword", "function")) {
+ next();
+ return subscripts(function_(false), allow_calls);
+ }
+ if (HOP(ATOMIC_START_TOKEN, S.token.type)) {
+ var atom = S.token.type == "regexp"
+ ? as("regexp", S.token.value[0], S.token.value[1])
+ : as(S.token.type, S.token.value);
+ return subscripts(prog1(atom, next), allow_calls);
+ }
+ unexpected();
+ };
+
+ function expr_list(closing, allow_trailing_comma) {
+ var first = true, a = [];
+ while (!is("punc", closing)) {
+ if (first) first = false; else expect(",");
+ if (allow_trailing_comma && is("punc", closing))
+ break;
+ a.push(expression(false));
+ }
+ next();
+ return a;
+ };
+
+ function array_() {
+ return as("array", expr_list("]", !strict_mode));
+ };
+
+ function object_() {
+ var first = true, a = [];
+ while (!is("punc", "}")) {
+ if (first) first = false; else expect(",");
+ if (!strict_mode && is("punc", "}"))
+ // allow trailing comma
+ break;
+ var type = S.token.type;
+ var name = as_property_name();
+ if (type == "name" && (name == "get" || name == "set") && !is("punc", ":")) {
+ a.push([ as_name(), function_(false), name ]);
+ } else {
+ expect(":");
+ a.push([ name, expression(false) ]);
+ }
+ }
+ next();
+ return as("object", a);
+ };
+
+ function as_property_name() {
+ switch (S.token.type) {
+ case "num":
+ case "string":
+ return prog1(S.token.value, next);
+ }
+ return as_name();
+ };
+
+ function as_name() {
+ switch (S.token.type) {
+ case "name":
+ case "operator":
+ case "keyword":
+ case "atom":
+ return prog1(S.token.value, next);
+ default:
+ unexpected();
+ }
+ };
+
+ function subscripts(expr, allow_calls) {
+ if (is("punc", ".")) {
+ next();
+ return subscripts(as("dot", expr, as_name()), allow_calls);
+ }
+ if (is("punc", "[")) {
+ next();
+ return subscripts(as("sub", expr, prog1(expression, curry(expect, "]"))), allow_calls);
+ }
+ if (allow_calls && is("punc", "(")) {
+ next();
+ return subscripts(as("call", expr, expr_list(")")), true);
+ }
+ if (allow_calls && is("operator") && HOP(UNARY_POSTFIX, S.token.value)) {
+ return prog1(curry(make_unary, "unary-postfix", S.token.value, expr),
+ next);
+ }
+ return expr;
+ };
+
+ function make_unary(tag, op, expr) {
+ if ((op == "++" || op == "--") && !is_assignable(expr))
+ croak("Invalid use of " + op + " operator");
+ return as(tag, op, expr);
+ };
+
+ function expr_op(left, min_prec) {
+ var op = is("operator") ? S.token.value : null;
+ var prec = op != null ? PRECEDENCE[op] : null;
+ if (prec != null && prec > min_prec) {
+ next();
+ var right = expr_op(expr_atom(true), prec);
+ return expr_op(as("binary", op, left, right), min_prec);
+ }
+ return left;
+ };
+
+ function expr_ops() {
+ return expr_op(expr_atom(true), 0);
+ };
+
+ function maybe_conditional() {
+ var expr = expr_ops();
+ if (is("operator", "?")) {
+ next();
+ var yes = expression(false);
+ expect(":");
+ return as("conditional", expr, yes, expression(false));
+ }
+ return expr;
+ };
+
+ function is_assignable(expr) {
+ switch (expr[0]) {
+ case "dot":
+ case "sub":
+ return true;
+ case "name":
+ return expr[1] != "this";
+ }
+ };
+
+ function maybe_assign() {
+ var left = maybe_conditional(), val = S.token.value;
+ if (is("operator") && HOP(ASSIGNMENT, val)) {
+ if (is_assignable(left)) {
+ next();
+ return as("assign", ASSIGNMENT[val], left, maybe_assign());
+ }
+ croak("Invalid assignment");
+ }
+ return left;
+ };
+
+ function expression(commas) {
+ if (arguments.length == 0)
+ commas = true;
+ var expr = maybe_assign();
+ if (commas && is("punc", ",")) {
+ next();
+ return as("seq", expr, expression());
+ }
+ return expr;
+ };
+
+ function in_loop(cont) {
+ try {
+ ++S.in_loop;
+ return cont();
+ } finally {
+ --S.in_loop;
+ }
+ };
+
+ return as("toplevel", (function(a){
+ while (!is("eof"))
+ a.push(statement());
+ return a;
+ })([]));
+
+};
+
+/* -----[ Utilities ]----- */
+
+function curry(f) {
+ var args = slice(arguments, 1);
+ return function() { return f.apply(this, args.concat(slice(arguments))); };
+};
+
+function prog1(ret) {
+ if (ret instanceof Function)
+ ret = ret();
+ for (var i = 1, n = arguments.length; --n > 0; ++i)
+ arguments[i]();
+ return ret;
+};
+
+function array_to_hash(a) {
+ var ret = {};
+ for (var i = 0; i < a.length; ++i)
+ ret[a[i]] = true;
+ return ret;
+};
+
+function slice(a, start) {
+ return Array.prototype.slice.call(a, start == null ? 0 : start);
+};
+
+function characters(str) {
+ return str.split("");
+};
+
+function member(name, array) {
+ for (var i = array.length; --i >= 0;)
+ if (array[i] === name)
+ return true;
+ return false;
+};
+
+function HOP(obj, prop) {
+ return Object.prototype.hasOwnProperty.call(obj, prop);
+};
+
+/* -----[ Exports ]----- */
+
+exports.tokenizer = tokenizer;
+exports.parse = parse;
+exports.slice = slice;
+exports.curry = curry;
+exports.member = member;
+exports.array_to_hash = array_to_hash;
+exports.PRECEDENCE = PRECEDENCE;
+exports.KEYWORDS_ATOM = KEYWORDS_ATOM;
+exports.RESERVED_WORDS = RESERVED_WORDS;
+exports.KEYWORDS = KEYWORDS;
+exports.ATOMIC_START_TOKEN = ATOMIC_START_TOKEN;
+exports.OPERATORS = OPERATORS;
+exports.is_alphanumeric_char = is_alphanumeric_char;
--- /dev/null
+/***********************************************************************
+
+ A JavaScript tokenizer / parser / beautifier / compressor.
+
+ This version is suitable for Node.js. With minimal changes (the
+ exports stuff) it should work on any JS platform.
+
+ This file implements some AST processors. They work on data built
+ by parse-js.
+
+ Exported functions:
+
+ - ast_mangle(ast, include_toplevel) -- mangles the
+ variable/function names in the AST. Returns an AST. Pass true
+ as second argument to mangle toplevel names too.
+
+ - ast_squeeze(ast) -- employs various optimizations to make the
+ final generated code even smaller. Returns an AST.
+
+ - gen_code(ast, beautify) -- generates JS code from the AST. Pass
+ true (or an object, see the code for some options) as second
+ argument to get "pretty" (indented) code.
+
+ -------------------------------- (C) ---------------------------------
+
+ Author: Mihai Bazon
+ <mihai.bazon@gmail.com>
+ http://mihai.bazon.net/blog
+
+ Distributed under the BSD license:
+
+ Copyright 2010 (c) Mihai Bazon <mihai.bazon@gmail.com>
+
+ 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.
+
+ ***********************************************************************/
+
+var jsp = require("./parse-js"),
+ slice = jsp.slice,
+ member = jsp.member,
+ PRECEDENCE = jsp.PRECEDENCE,
+ OPERATORS = jsp.OPERATORS;
+
+/* -----[ helper for AST traversal ]----- */
+
+function ast_walker(ast) {
+ function _vardefs(defs) {
+ return MAP(defs, function(def){
+ var a = [ def[0] ];
+ if (def.length > 1)
+ a[1] = walk(def[1]);
+ return a;
+ });
+ };
+ var walkers = {
+ "string": function(str) {
+ return [ "string", str ];
+ },
+ "num": function(num) {
+ return [ "num", num ];
+ },
+ "name": function(name) {
+ return [ "name", name ];
+ },
+ "toplevel": function(statements) {
+ return [ "toplevel", MAP(statements, walk) ];
+ },
+ "block": function(statements) {
+ var out = [ "block" ];
+ if (statements != null)
+ out.push(MAP(statements, walk));
+ return out;
+ },
+ "var": function(defs) {
+ return [ "var", _vardefs(defs) ];
+ },
+ "const": function(defs) {
+ return [ "const", _vardefs(defs) ];
+ },
+ "try": function(t, c, f) {
+ return [
+ "try",
+ MAP(t, walk),
+ c != null ? [ c[0], MAP(c[1], walk) ] : null,
+ f != null ? MAP(f, walk) : null
+ ];
+ },
+ "throw": function(expr) {
+ return [ "throw", walk(expr) ];
+ },
+ "new": function(ctor, args) {
+ return [ "new", walk(ctor), MAP(args, walk) ];
+ },
+ "switch": function(expr, body) {
+ return [ "switch", walk(expr), MAP(body, function(branch){
+ return [ branch[0] ? walk(branch[0]) : null,
+ MAP(branch[1], walk) ];
+ }) ];
+ },
+ "break": function(label) {
+ return [ "break", label ];
+ },
+ "continue": function(label) {
+ return [ "continue", label ];
+ },
+ "conditional": function(cond, t, e) {
+ return [ "conditional", walk(cond), walk(t), walk(e) ];
+ },
+ "assign": function(op, lvalue, rvalue) {
+ return [ "assign", op, walk(lvalue), walk(rvalue) ];
+ },
+ "dot": function(expr) {
+ return [ "dot", walk(expr) ].concat(slice(arguments, 1));
+ },
+ "call": function(expr, args) {
+ return [ "call", walk(expr), MAP(args, walk) ];
+ },
+ "function": function(name, args, body) {
+ return [ "function", name, args.slice(), MAP(body, walk) ];
+ },
+ "defun": function(name, args, body) {
+ return [ "defun", name, args.slice(), MAP(body, walk) ];
+ },
+ "if": function(conditional, t, e) {
+ return [ "if", walk(conditional), walk(t), walk(e) ];
+ },
+ "for": function(init, cond, step, block) {
+ return [ "for", walk(init), walk(cond), walk(step), walk(block) ];
+ },
+ "for-in": function(has_var, key, hash, block) {
+ return [ "for-in", has_var, key, walk(hash), walk(block) ];
+ },
+ "while": function(cond, block) {
+ return [ "while", walk(cond), walk(block) ];
+ },
+ "do": function(cond, block) {
+ return [ "do", walk(cond), walk(block) ];
+ },
+ "return": function(expr) {
+ return [ "return", walk(expr) ];
+ },
+ "binary": function(op, left, right) {
+ return [ "binary", op, walk(left), walk(right) ];
+ },
+ "unary-prefix": function(op, expr) {
+ return [ "unary-prefix", op, walk(expr) ];
+ },
+ "unary-postfix": function(op, expr) {
+ return [ "unary-postfix", op, walk(expr) ];
+ },
+ "sub": function(expr, subscript) {
+ return [ "sub", walk(expr), walk(subscript) ];
+ },
+ "object": function(props) {
+ return [ "object", MAP(props, function(p){
+ return p.length == 2
+ ? [ p[0], walk(p[1]) ]
+ : [ p[0], walk(p[1]), p[2] ]; // get/set-ter
+ }) ];
+ },
+ "regexp": function(rx, mods) {
+ return [ "regexp", rx, mods ];
+ },
+ "array": function(elements) {
+ return [ "array", MAP(elements, walk) ];
+ },
+ "stat": function(stat) {
+ return [ "stat", walk(stat) ];
+ },
+ "seq": function() {
+ return [ "seq" ].concat(MAP(slice(arguments), walk));
+ },
+ "label": function(name, block) {
+ return [ "label", name, walk(block) ];
+ },
+ "with": function(expr, block) {
+ return [ "with", walk(expr), walk(block) ];
+ },
+ "atom": function(name) {
+ return [ "atom", name ];
+ }
+ };
+
+ var user = {};
+ var stack = [];
+ function walk(ast) {
+ if (ast == null)
+ return null;
+ try {
+ stack.push(ast);
+ var type = ast[0];
+ var gen = user[type];
+ if (gen) {
+ var ret = gen.apply(ast, ast.slice(1));
+ if (ret != null)
+ return ret;
+ }
+ gen = walkers[type];
+ return gen.apply(ast, ast.slice(1));
+ } finally {
+ stack.pop();
+ }
+ };
+
+ function with_walkers(walkers, cont){
+ var save = {}, i;
+ for (i in walkers) if (HOP(walkers, i)) {
+ save[i] = user[i];
+ user[i] = walkers[i];
+ }
+ var ret = cont();
+ for (i in save) if (HOP(save, i)) {
+ if (!save[i]) delete user[i];
+ else user[i] = save[i];
+ }
+ return ret;
+ };
+
+ return {
+ walk: walk,
+ with_walkers: with_walkers,
+ parent: function() {
+ return stack[stack.length - 2]; // last one is current node
+ },
+ stack: function() {
+ return stack;
+ }
+ };
+};
+
+/* -----[ Scope and mangling ]----- */
+
+function Scope(parent) {
+ this.names = {}; // names defined in this scope
+ this.mangled = {}; // mangled names (orig.name => mangled)
+ this.rev_mangled = {}; // reverse lookup (mangled => orig.name)
+ this.cname = -1; // current mangled name
+ this.refs = {}; // names referenced from this scope
+ this.uses_with = false; // will become TRUE if eval() is detected in this or any subscopes
+ this.uses_eval = false; // will become TRUE if with() is detected in this or any subscopes
+ this.parent = parent; // parent scope
+ this.children = []; // sub-scopes
+ if (parent) {
+ this.level = parent.level + 1;
+ parent.children.push(this);
+ } else {
+ this.level = 0;
+ }
+};
+
+var base54 = (function(){
+ var DIGITS = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ$_";
+ return function(num) {
+ var ret = "";
+ do {
+ ret = DIGITS.charAt(num % 54) + ret;
+ num = Math.floor(num / 54);
+ } while (num > 0);
+ return ret;
+ };
+})();
+
+Scope.prototype = {
+ has: function(name) {
+ for (var s = this; s; s = s.parent)
+ if (HOP(s.names, name))
+ return s;
+ },
+ has_mangled: function(mname) {
+ for (var s = this; s; s = s.parent)
+ if (HOP(s.rev_mangled, mname))
+ return s;
+ },
+ toJSON: function() {
+ return {
+ names: this.names,
+ uses_eval: this.uses_eval,
+ uses_with: this.uses_with
+ };
+ },
+
+ next_mangled: function() {
+ // we must be careful that the new mangled name:
+ //
+ // 1. doesn't shadow a mangled name from a parent
+ // scope, unless we don't reference the original
+ // name from this scope OR from any sub-scopes!
+ // This will get slow.
+ //
+ // 2. doesn't shadow an original name from a parent
+ // scope, in the event that the name is not mangled
+ // in the parent scope and we reference that name
+ // here OR IN ANY SUBSCOPES!
+ //
+ // 3. doesn't shadow a name that is referenced but not
+ // defined (possibly global defined elsewhere).
+ for (;;) {
+ var m = base54(++this.cname), prior;
+
+ // case 1.
+ prior = this.has_mangled(m);
+ if (prior && this.refs[prior.rev_mangled[m]] === prior)
+ continue;
+
+ // case 2.
+ prior = this.has(m);
+ if (prior && prior !== this && this.refs[m] === prior && !prior.has_mangled(m))
+ continue;
+
+ // case 3.
+ if (HOP(this.refs, m) && this.refs[m] == null)
+ continue;
+
+ // I got "do" once. :-/
+ if (!is_identifier(m))
+ continue;
+
+ return m;
+ }
+ },
+ get_mangled: function(name, newMangle) {
+ if (this.uses_eval || this.uses_with) return name; // no mangle if eval or with is in use
+ var s = this.has(name);
+ if (!s) return name; // not in visible scope, no mangle
+ if (HOP(s.mangled, name)) return s.mangled[name]; // already mangled in this scope
+ if (!newMangle) return name; // not found and no mangling requested
+
+ var m = s.next_mangled();
+ s.rev_mangled[m] = name;
+ return s.mangled[name] = m;
+ },
+ define: function(name) {
+ if (name != null)
+ return this.names[name] = name;
+ }
+};
+
+function ast_add_scope(ast) {
+
+ var current_scope = null;
+ var w = ast_walker(), walk = w.walk;
+ var having_eval = [];
+
+ function with_new_scope(cont) {
+ current_scope = new Scope(current_scope);
+ var ret = current_scope.body = cont();
+ ret.scope = current_scope;
+ current_scope = current_scope.parent;
+ return ret;
+ };
+
+ function define(name) {
+ return current_scope.define(name);
+ };
+
+ function reference(name) {
+ current_scope.refs[name] = true;
+ };
+
+ function _lambda(name, args, body) {
+ return [ this[0], define(name), args, with_new_scope(function(){
+ MAP(args, define);
+ return MAP(body, walk);
+ })];
+ };
+
+ return with_new_scope(function(){
+ // process AST
+ var ret = w.with_walkers({
+ "function": _lambda,
+ "defun": _lambda,
+ "with": function(expr, block) {
+ for (var s = current_scope; s; s = s.parent)
+ s.uses_with = true;
+ },
+ "var": function(defs) {
+ MAP(defs, function(d){ define(d[0]) });
+ },
+ "const": function(defs) {
+ MAP(defs, function(d){ define(d[0]) });
+ },
+ "try": function(t, c, f) {
+ if (c != null) return [
+ "try",
+ MAP(t, walk),
+ [ define(c[0]), MAP(c[1], walk) ],
+ f != null ? MAP(f, walk) : null
+ ];
+ },
+ "name": function(name) {
+ if (name == "eval")
+ having_eval.push(current_scope);
+ reference(name);
+ },
+ "for-in": function(has_var, name) {
+ if (has_var) define(name);
+ else reference(name);
+ }
+ }, function(){
+ return walk(ast);
+ });
+
+ // the reason why we need an additional pass here is
+ // that names can be used prior to their definition.
+
+ // scopes where eval was detected and their parents
+ // are marked with uses_eval, unless they define the
+ // "eval" name.
+ MAP(having_eval, function(scope){
+ if (!scope.has("eval")) while (scope) {
+ scope.uses_eval = true;
+ scope = scope.parent;
+ }
+ });
+
+ // for referenced names it might be useful to know
+ // their origin scope. current_scope here is the
+ // toplevel one.
+ function fixrefs(scope, i) {
+ // do children first; order shouldn't matter
+ for (i = scope.children.length; --i >= 0;)
+ fixrefs(scope.children[i]);
+ for (i in scope.refs) if (HOP(scope.refs, i)) {
+ // find origin scope and propagate the reference to origin
+ for (var origin = scope.has(i), s = scope; s; s = s.parent) {
+ s.refs[i] = origin;
+ if (s === origin) break;
+ }
+ }
+ };
+ fixrefs(current_scope);
+
+ return ret;
+ });
+
+};
+
+/* -----[ mangle names ]----- */
+
+function ast_mangle(ast, do_toplevel) {
+ var w = ast_walker(), walk = w.walk, scope;
+
+ function get_mangled(name, newMangle) {
+ if (!do_toplevel && !scope.parent) return name; // don't mangle toplevel
+ return scope.get_mangled(name, newMangle);
+ };
+
+ function _lambda(name, args, body) {
+ if (name) name = get_mangled(name);
+ body = with_scope(body.scope, function(){
+ args = MAP(args, function(name){ return get_mangled(name) });
+ return MAP(body, walk);
+ });
+ return [ this[0], name, args, body ];
+ };
+
+ function with_scope(s, cont) {
+ var _scope = scope;
+ scope = s;
+ for (var i in s.names) if (HOP(s.names, i)) {
+ get_mangled(i, true);
+ }
+ var ret = cont();
+ ret.scope = s;
+ scope = _scope;
+ return ret;
+ };
+
+ function _vardefs(defs) {
+ return MAP(defs, function(d){
+ return [ get_mangled(d[0]), walk(d[1]) ];
+ });
+ };
+
+ return w.with_walkers({
+ "function": _lambda,
+ "defun": function() {
+ // move function declarations to the top when
+ // they are not in some block.
+ var ast = _lambda.apply(this, arguments);
+ switch (w.parent()[0]) {
+ case "toplevel":
+ case "function":
+ case "defun":
+ return MAP.at_top(ast);
+ }
+ return ast;
+ },
+ "var": function(defs) {
+ return [ "var", _vardefs(defs) ];
+ },
+ "const": function(defs) {
+ return [ "const", _vardefs(defs) ];
+ },
+ "name": function(name) {
+ return [ "name", get_mangled(name) ];
+ },
+ "try": function(t, c, f) {
+ return [ "try",
+ MAP(t, walk),
+ c != null ? [ get_mangled(c[0]), MAP(c[1], walk) ] : null,
+ f != null ? MAP(f, walk) : null ];
+ },
+ "toplevel": function(body) {
+ return with_scope(this.scope, function(){
+ return [ "toplevel", MAP(body, walk) ];
+ });
+ },
+ "for-in": function(has_var, name, obj, stat) {
+ return [ "for-in", has_var, get_mangled(name), walk(obj), walk(stat) ];
+ }
+ }, function() {
+ return walk(ast_add_scope(ast));
+ });
+};
+
+/* -----[
+ - compress foo["bar"] into foo.bar,
+ - remove block brackets {} where possible
+ - join consecutive var declarations
+ - various optimizations for IFs:
+ - if (cond) foo(); else bar(); ==> cond?foo():bar();
+ - if (cond) foo(); ==> cond&&foo();
+ - if (foo) return bar(); else return baz(); ==> return foo?bar():baz(); // also for throw
+ - if (foo) return bar(); else something(); ==> {if(foo)return bar();something()}
+ ]----- */
+
+var warn = function(){};
+
+function best_of(ast1, ast2) {
+ return gen_code(ast1).length > gen_code(ast2[0] == "stat" ? ast2[1] : ast2).length ? ast2 : ast1;
+};
+
+function last_stat(b) {
+ if (b[0] == "block" && b[1] && b[1].length > 0)
+ return b[1][b[1].length - 1];
+ return b;
+}
+
+function aborts(t) {
+ if (t) {
+ t = last_stat(t);
+ if (t[0] == "return" || t[0] == "break" || t[0] == "continue" || t[0] == "throw")
+ return true;
+ }
+};
+
+function negate(c) {
+ var not_c = [ "unary-prefix", "!", c ];
+ switch (c[0]) {
+ case "unary-prefix":
+ return c[1] == "!" ? c[2] : not_c;
+ case "binary":
+ var op = c[1], left = c[2], right = c[3];
+ switch (op) {
+ case "<=": return [ "binary", ">", left, right ];
+ case "<": return [ "binary", ">=", left, right ];
+ case ">=": return [ "binary", "<", left, right ];
+ case ">": return [ "binary", "<=", left, right ];
+ case "==": return [ "binary", "!=", left, right ];
+ case "!=": return [ "binary", "==", left, right ];
+ case "===": return [ "binary", "!==", left, right ];
+ case "!==": return [ "binary", "===", left, right ];
+ case "&&": return best_of(not_c, [ "binary", "||", negate(left), negate(right) ]);
+ case "||": return best_of(not_c, [ "binary", "&&", negate(left), negate(right) ]);
+ }
+ break;
+ }
+ return not_c;
+};
+
+function make_conditional(c, t, e) {
+ if (c[0] == "unary-prefix" && c[1] == "!") {
+ return e ? [ "conditional", c[2], e, t ] : [ "binary", "||", c[2], t ];
+ } else {
+ return e ? [ "conditional", c, t, e ] : [ "binary", "&&", c, t ];
+ }
+};
+
+function empty(b) {
+ return !b || (b[0] == "block" && (!b[1] || b[1].length == 0));
+};
+
+function ast_squeeze(ast, options) {
+ options = defaults(options, {
+ make_seqs : true,
+ dead_code : true,
+ no_warnings : false,
+ extra : false
+ });
+
+ var w = ast_walker(), walk = w.walk, scope;
+
+ function with_scope(s, cont) {
+ var _scope = scope;
+ scope = s;
+ var ret = cont();
+ ret.scope = s;
+ scope = _scope;
+ return ret;
+ };
+
+ function is_constant(node) {
+ return node[0] == "string" || node[0] == "num";
+ };
+
+ function find_first_execute(node) {
+ if (!node)
+ return false;
+
+ switch (node[0]) {
+ case "num":
+ case "string":
+ case "name":
+ return node;
+ case "call":
+ case "conditional":
+ case "for":
+ case "if":
+ case "new":
+ case "return":
+ case "stat":
+ case "switch":
+ case "throw":
+ return find_first_execute(node[1]);
+ case "binary":
+ return find_first_execute(node[2]);
+ case "assign":
+ if (node[1] === true)
+ return find_first_execute(node[3]);
+ break;
+ case "var":
+ if (node[1][0].length > 1)
+ return find_first_execute(node[1][0][1]);
+ break;
+ }
+ return null;
+ }
+
+ function find_assign_recursive(p, v) {
+ if (p[0] == "assign" && p[1] != true || p[0] == "unary-prefix") {
+ if (p[2][0] == "name" && v[0] == "name" && p[2][1] == v[1])
+ return true;
+ return false;
+ }
+
+ if (p[0] != "assign" || p[1] !== true)
+ return false;
+
+ if ((is_constant(p[3]) && p[3][0] == v[0] && p[3][1] == v[1]) ||
+ (p[3][0] == "name" && v[0] == "name" && p[3][1] == v[1]) ||
+ (p[2][0] == "name" && v[0] == "name" && p[2][1] == v[1]))
+ return true;
+
+ return find_assign_recursive(p[3], v);
+ };
+
+ function rmblock(block) {
+ if (block != null && block[0] == "block" && block[1] && block[1].length == 1)
+ block = block[1][0];
+ return block;
+ };
+
+ function clone(obj) {
+ if (obj && obj.constructor == Array)
+ return MAP(obj, clone);
+ return obj;
+ };
+
+ function make_seq_to_statements(node) {
+ if (node[0] != "seq") {
+ switch (node[0]) {
+ case "var":
+ case "const":
+ return [ node ];
+ default:
+ return [ [ "stat", node ] ];
+ }
+ }
+
+ var ret = [];
+ for (var i = 1; i < node.length; i++)
+ ret.push.apply(ret, make_seq_to_statements(node[i]));
+
+ return ret;
+ };
+
+ function _lambda(name, args, body) {
+ return [ this[0], name, args, with_scope(body.scope, function(){
+ return tighten(MAP(body, walk), "lambda");
+ }) ];
+ };
+
+ // we get here for blocks that have been already transformed.
+ // this function does a few things:
+ // 1. discard useless blocks
+ // 2. join consecutive var declarations
+ // 3. remove obviously dead code
+ // 4. transform consecutive statements using the comma operator
+ // 5. if block_type == "lambda" and it detects constructs like if(foo) return ... - rewrite like if (!foo) { ... }
+ function tighten(statements, block_type) {
+ statements = statements.reduce(function(a, stat){
+ if (stat[0] == "block") {
+ if (stat[1]) {
+ a.push.apply(a, stat[1]);
+ }
+ } else {
+ a.push(stat);
+ }
+ return a;
+ }, []);
+
+ if (options.extra) {
+ // Detightening things. We do this because then we can assume that the
+ // statements are structured in a specific way.
+ statements = (function(a, prev) {
+ statements.forEach(function(cur) {
+ switch (cur[0]) {
+ case "for":
+ if (cur[1] != null) {
+ a.push.apply(a, make_seq_to_statements(cur[1]));
+ cur[1] = null;
+ }
+ a.push(cur);
+ break;
+ case "stat":
+ var stats = make_seq_to_statements(cur[1]);
+ stats.forEach(function(s) {
+ if (s[1][0] == "unary-postfix")
+ s[1][0] = "unary-prefix";
+ });
+ a.push.apply(a, stats);
+ break;
+ default:
+ a.push(cur);
+ }
+ });
+ return a;
+ })([]);
+
+ statements = (function(a, prev) {
+ statements.forEach(function(cur) {
+ if (!(prev && prev[0] == "stat")) {
+ a.push(cur);
+ prev = cur;
+ return;
+ }
+
+ var p = prev[1];
+ var c = find_first_execute(cur);
+ if (c && find_assign_recursive(p, c)) {
+ var old_cur = clone(cur);
+ c.splice(0, c.length);
+ c.push.apply(c, p);
+ var tmp_cur = best_of(cur, [ "toplevel", [ prev, old_cur ] ]);
+ if (tmp_cur == cur) {
+ a[a.length -1] = cur;
+ } else {
+ cur = old_cur;
+ a.push(cur);
+ }
+ } else {
+ a.push(cur);
+ }
+ prev = cur;
+ });
+ return a;
+ })([]);
+ }
+
+ statements = (function(a, prev){
+ statements.forEach(function(cur){
+ if (prev && ((cur[0] == "var" && prev[0] == "var") ||
+ (cur[0] == "const" && prev[0] == "const"))) {
+ prev[1] = prev[1].concat(cur[1]);
+ } else {
+ a.push(cur);
+ prev = cur;
+ }
+ });
+ return a;
+ })([]);
+
+ if (options.dead_code) statements = (function(a, has_quit){
+ statements.forEach(function(st){
+ if (has_quit) {
+ if (member(st[0], [ "function", "defun" , "var", "const" ])) {
+ a.push(st);
+ }
+ else if (!options.no_warnings)
+ warn("Removing unreachable code: " + gen_code(st, true));
+ }
+ else {
+ a.push(st);
+ if (member(st[0], [ "return", "throw", "break", "continue" ]))
+ has_quit = true;
+ }
+ });
+ return a;
+ })([]);
+
+ if (options.make_seqs) statements = (function(a, prev) {
+ statements.forEach(function(cur){
+ if (prev && prev[0] == "stat" && cur[0] == "stat") {
+ prev[1] = [ "seq", prev[1], cur[1] ];
+ } else {
+ a.push(cur);
+ prev = cur;
+ }
+ });
+ return a;
+ })([]);
+
+ if (options.extra) {
+ statements = (function(a, prev){
+ statements.forEach(function(cur){
+ var replaced = false;
+ if (prev && cur[0] == "for" && cur[1] == null && (prev[0] == "var" || prev[0] == "const" || prev[0] == "stat")) {
+ cur[1] = prev;
+ a[a.length - 1] = cur;
+ } else {
+ a.push(cur);
+ }
+ prev = cur;
+ });
+ return a;
+ })([]);
+ }
+
+ if (block_type == "lambda") statements = (function(i, a, stat){
+ while (i < statements.length) {
+ stat = statements[i++];
+ if (stat[0] == "if" && !stat[3]) {
+ if (stat[2][0] == "return" && stat[2][1] == null) {
+ a.push(make_if(negate(stat[1]), [ "block", statements.slice(i) ]));
+ break;
+ }
+ var last = last_stat(stat[2]);
+ if (last[0] == "return" && last[1] == null) {
+ a.push(make_if(stat[1], [ "block", stat[2][1].slice(0, -1) ], [ "block", statements.slice(i) ]));
+ break;
+ }
+ }
+ a.push(stat);
+ }
+ return a;
+ })(0, []);
+
+ return statements;
+ };
+
+ function make_if(c, t, e) {
+ c = walk(c);
+ t = walk(t);
+ e = walk(e);
+
+ if (empty(t)) {
+ c = negate(c);
+ t = e;
+ e = null;
+ } else if (empty(e)) {
+ e = null;
+ } else {
+ // if we have both else and then, maybe it makes sense to switch them?
+ (function(){
+ var a = gen_code(c);
+ var n = negate(c);
+ var b = gen_code(n);
+ if (b.length < a.length) {
+ var tmp = t;
+ t = e;
+ e = tmp;
+ c = n;
+ }
+ })();
+ }
+ if (empty(e) && empty(t))
+ return [ "stat", c ];
+ var ret = [ "if", c, t, e ];
+ if (t[0] == "stat") {
+ if (e) {
+ if (e[0] == "stat") {
+ ret = best_of(ret, [ "stat", make_conditional(c, t[1], e[1]) ]);
+ }
+ }
+ else {
+ ret = best_of(ret, [ "stat", make_conditional(c, t[1]) ]);
+ }
+ }
+ else if (e && t[0] == e[0] && (t[0] == "return" || t[0] == "throw")) {
+ ret = best_of(ret, [ t[0], make_conditional(c, t[1], e[1] ) ]);
+ }
+ else if (e && aborts(t)) {
+ ret = [ [ "if", c, t ] ];
+ if (e[0] == "block") {
+ if (e[1]) ret = ret.concat(e[1]);
+ }
+ else {
+ ret.push(e);
+ }
+ ret = walk([ "block", ret ]);
+ }
+ else if (t && aborts(e)) {
+ ret = [ [ "if", negate(c), e ] ];
+ if (t[0] == "block") {
+ if (t[1]) ret = ret.concat(t[1]);
+ } else {
+ ret.push(t);
+ }
+ ret = walk([ "block", ret ]);
+ }
+ return ret;
+ };
+
+ return w.with_walkers({
+ "sub": function(expr, subscript) {
+ if (subscript[0] == "string") {
+ var name = subscript[1];
+ if (is_identifier(name)) {
+ return [ "dot", walk(expr), name ];
+ }
+ }
+ },
+ "if": make_if,
+ "toplevel": function(body) {
+ return [ "toplevel", with_scope(this.scope, function(){
+ return tighten(MAP(body, walk));
+ }) ];
+ },
+ "switch": function(expr, body) {
+ var last = body.length - 1;
+ return [ "switch", walk(expr), MAP(body, function(branch, i){
+ var block = tighten(MAP(branch[1], walk));
+ if (i == last && block.length > 0) {
+ var node = block[block.length - 1];
+ if (node[0] == "break" && !node[1])
+ block.pop();
+ }
+ return [ branch[0] ? walk(branch[0]) : null, block ];
+ }) ];
+ },
+ "function": _lambda,
+ "defun": _lambda,
+ "block": function(body) {
+ if (body) return rmblock([ "block", tighten(MAP(body, walk)) ]);
+ },
+ "binary": function(op, left, right) {
+ left = walk(left);
+ right = walk(right);
+ var best = [ "binary", op, left, right ];
+ if (is_constant(right)) {
+ if (is_constant(left)) {
+ var val = null;
+ switch (op) {
+ case "+": val = left[1] + right[1]; break;
+ case "*": val = left[1] * right[1]; break;
+ case "/": val = left[1] / right[1]; break;
+ case "-": val = left[1] - right[1]; break;
+ case "<<": val = left[1] << right[1]; break;
+ case ">>": val = left[1] >> right[1]; break;
+ case ">>>": val = left[1] >>> right[1]; break;
+ }
+ if (val != null) {
+ best = best_of(best, [ typeof val == "string" ? "string" : "num", val ]);
+ }
+ } else if (left[0] == "binary" && left[1] == "+" && left[3][0] == "string") {
+ best = best_of(best, [ "binary", "+", left[2], [ "string", left[3][1] + right[1] ] ]);
+ }
+ }
+ return best;
+ },
+ "conditional": function(c, t, e) {
+ return make_conditional(walk(c), walk(t), walk(e));
+ },
+ "try": function(t, c, f) {
+ return [
+ "try",
+ tighten(MAP(t, walk)),
+ c != null ? [ c[0], tighten(MAP(c[1], walk)) ] : null,
+ f != null ? tighten(MAP(f, walk)) : null
+ ];
+ },
+ "unary-prefix": function(op, cond) {
+ if (op == "!") {
+ cond = walk(cond);
+ if (cond[0] == "unary-prefix" && cond[1] == "!") {
+ var p = w.parent();
+ if (p[0] == "unary-prefix" && p[1] == "!")
+ return cond[2];
+ return [ "unary-prefix", "!", cond ];
+ }
+ return best_of(this, negate(cond));
+ }
+ },
+ "name": function(name) {
+ switch (name) {
+ case "true": return [ "unary-prefix", "!", [ "num", 0 ]];
+ case "false": return [ "unary-prefix", "!", [ "num", 1 ]];
+ }
+ },
+ "new": function(ctor, args) {
+ if (ctor[0] == "name" && ctor[1] == "Array" && !scope.has("Array")) {
+ if (args.length != 1) {
+ return [ "array", args ];
+ } else {
+ return [ "call", [ "name", "Array" ], args ];
+ }
+ }
+ },
+ "call": function(expr, args) {
+ if (expr[0] == "name" && expr[1] == "Array" && args.length != 1 && !scope.has("Array")) {
+ return [ "array", args ];
+ }
+ }
+ }, function() {
+ return walk(ast_add_scope(ast));
+ });
+};
+
+/* -----[ re-generate code from the AST ]----- */
+
+var DOT_CALL_NO_PARENS = jsp.array_to_hash([
+ "name",
+ "array",
+ "string",
+ "dot",
+ "sub",
+ "call",
+ "regexp"
+]);
+
+function make_string(str) {
+ var dq = 0, sq = 0;
+ str = str.replace(/[\\\b\f\n\r\t\x22\x27]/g, function(s){
+ switch (s) {
+ case "\\": return "\\\\";
+ case "\b": return "\\b";
+ case "\f": return "\\f";
+ case "\n": return "\\n";
+ case "\r": return "\\r";
+ case "\t": return "\\t";
+ case '"': ++dq; return '"';
+ case "'": ++sq; return "'";
+ }
+ return s;
+ });
+ if (dq > sq) {
+ return "'" + str.replace(/\x27/g, "\\'") + "'";
+ } else {
+ return '"' + str.replace(/\x22/g, '\\"') + '"';
+ }
+};
+
+function gen_code(ast, beautify) {
+ if (beautify) beautify = defaults(beautify, {
+ indent_start : 0,
+ indent_level : 4,
+ quote_keys : false,
+ space_colon : false
+ });
+ var indentation = 0,
+ newline = beautify ? "\n" : "",
+ space = beautify ? " " : "";
+
+ function indent(line) {
+ if (line == null)
+ line = "";
+ if (beautify)
+ line = repeat_string(" ", beautify.indent_start + indentation * beautify.indent_level) + line;
+ return line;
+ };
+
+ function with_indent(cont, incr) {
+ if (incr == null) incr = 1;
+ indentation += incr;
+ try { return cont.apply(null, slice(arguments, 1)); }
+ finally { indentation -= incr; }
+ };
+
+ function add_spaces(a) {
+ if (beautify)
+ return a.join(" ");
+ var b = [];
+ for (var i = 0; i < a.length; ++i) {
+ var next = a[i + 1];
+ b.push(a[i]);
+ if (next &&
+ ((/[a-z0-9_\x24]$/i.test(a[i].toString()) && /^[a-z0-9_\x24]/i.test(next.toString())) ||
+ (/[\+\-]$/.test(a[i].toString()) && /^[\+\-]/.test(next.toString())))) {
+ b.push(" ");
+ }
+ }
+ return b.join("");
+ };
+
+ function add_commas(a) {
+ return a.join("," + space);
+ };
+
+ function parenthesize(expr) {
+ var gen = make(expr);
+ for (var i = 1; i < arguments.length; ++i) {
+ var el = arguments[i];
+ if ((el instanceof Function && el(expr)) || expr[0] == el)
+ return "(" + gen + ")";
+ }
+ return gen;
+ };
+
+ function best_of(a) {
+ if (a.length == 1) {
+ return a[0];
+ }
+ if (a.length == 2) {
+ var b = a[1];
+ a = a[0];
+ return a.length <= b.length ? a : b;
+ }
+ return best_of([ a[0], best_of(a.slice(1)) ]);
+ };
+
+ function needs_parens(expr) {
+ if (expr[0] == "function") {
+ // dot/call on a literal function requires the
+ // function literal itself to be parenthesized
+ // only if it's the first "thing" in a
+ // statement. This means that the parent is
+ // "stat", but it could also be a "seq" and
+ // we're the first in this "seq" and the
+ // parent is "stat", and so on. Messy stuff,
+ // but it worths the trouble.
+ var a = slice($stack), self = a.pop(), p = a.pop();
+ while (p) {
+ if (p[0] == "stat") return true;
+ if ((p[0] == "seq" && p[1] === self) ||
+ (p[0] == "call" && p[1] === self) ||
+ (p[0] == "binary" && p[2] === self)) {
+ self = p;
+ p = a.pop();
+ } else {
+ return false;
+ }
+ }
+ }
+ return !HOP(DOT_CALL_NO_PARENS, expr[0]);
+ };
+
+ function make_num(num) {
+ var str = num.toString(10), a = [ str.replace(/^0\./, ".") ], m;
+ if (Math.floor(num) === num) {
+ a.push("0x" + num.toString(16).toLowerCase(), // probably pointless
+ "0" + num.toString(8)); // same.
+ if ((m = /^(.*?)(0+)$/.exec(num))) {
+ a.push(m[1] + "e" + m[2].length);
+ }
+ } else if ((m = /^0?\.(0+)(.*)$/.exec(num))) {
+ a.push(m[2] + "e-" + (m[1].length + m[2].length),
+ str.substr(str.indexOf(".")));
+ }
+ return best_of(a);
+ };
+
+ var generators = {
+ "string": make_string,
+ "num": make_num,
+ "name": make_name,
+ "toplevel": function(statements) {
+ return make_block_statements(statements)
+ .join(newline + newline);
+ },
+ "block": make_block,
+ "var": function(defs) {
+ return "var " + add_commas(MAP(defs, make_1vardef)) + ";";
+ },
+ "const": function(defs) {
+ return "const " + add_commas(MAP(defs, make_1vardef)) + ";";
+ },
+ "try": function(tr, ca, fi) {
+ var out = [ "try", make_block(tr) ];
+ if (ca) out.push("catch", "(" + ca[0] + ")", make_block(ca[1]));
+ if (fi) out.push("finally", make_block(fi));
+ return add_spaces(out);
+ },
+ "throw": function(expr) {
+ return add_spaces([ "throw", make(expr) ]) + ";";
+ },
+ "new": function(ctor, args) {
+ args = args.length > 0 ? "(" + add_commas(MAP(args, make)) + ")" : "";
+ return add_spaces([ "new", parenthesize(ctor, "seq", "binary", "conditional", "assign", function(expr){
+ var w = ast_walker(), has_call = {};
+ try {
+ w.with_walkers({
+ "call": function() { throw has_call },
+ "function": function() { return this }
+ }, function(){
+ w.walk(expr);
+ });
+ } catch(ex) {
+ if (ex === has_call)
+ return true;
+ throw ex;
+ }
+ }) + args ]);
+ },
+ "switch": function(expr, body) {
+ return add_spaces([ "switch", "(" + make(expr) + ")", make_switch_block(body) ]);
+ },
+ "break": function(label) {
+ var out = "break";
+ if (label != null)
+ out += " " + make_name(label);
+ return out + ";";
+ },
+ "continue": function(label) {
+ var out = "continue";
+ if (label != null)
+ out += " " + make_name(label);
+ return out + ";";
+ },
+ "conditional": function(co, th, el) {
+ return add_spaces([ parenthesize(co, "assign", "seq", "conditional"), "?",
+ parenthesize(th, "seq"), ":",
+ parenthesize(el, "seq") ]);
+ },
+ "assign": function(op, lvalue, rvalue) {
+ if (op && op !== true) op += "=";
+ else op = "=";
+ return add_spaces([ make(lvalue), op, parenthesize(rvalue, "seq") ]);
+ },
+ "dot": function(expr) {
+ var out = make(expr), i = 1;
+ if (expr[0] == "num")
+ out += ".";
+ else if (needs_parens(expr))
+ out = "(" + out + ")";
+ while (i < arguments.length)
+ out += "." + make_name(arguments[i++]);
+ return out;
+ },
+ "call": function(func, args) {
+ var f = make(func);
+ if (needs_parens(func))
+ f = "(" + f + ")";
+ return f + "(" + add_commas(MAP(args, function(expr){
+ return parenthesize(expr, "seq");
+ })) + ")";
+ },
+ "function": make_function,
+ "defun": make_function,
+ "if": function(co, th, el) {
+ var out = [ "if", "(" + make(co) + ")", el ? make_then(th) : make(th) ];
+ if (el) {
+ out.push("else", make(el));
+ }
+ return add_spaces(out);
+ },
+ "for": function(init, cond, step, block) {
+ var out = [ "for" ];
+ init = (init != null ? make(init) : "").replace(/;*\s*$/, ";" + space);
+ cond = (cond != null ? make(cond) : "").replace(/;*\s*$/, ";" + space);
+ step = (step != null ? make(step) : "").replace(/;*\s*$/, "");
+ var args = init + cond + step;
+ if (args == "; ; ") args = ";;";
+ out.push("(" + args + ")", make(block));
+ return add_spaces(out);
+ },
+ "for-in": function(has_var, key, hash, block) {
+ var out = add_spaces([ "for", "(" ]);
+ if (has_var)
+ out += "var ";
+ out += add_spaces([ make_name(key) + " in " + make(hash) + ")", make(block) ]);
+ return out;
+ },
+ "while": function(condition, block) {
+ return add_spaces([ "while", "(" + make(condition) + ")", make(block) ]);
+ },
+ "do": function(condition, block) {
+ return add_spaces([ "do", make(block), "while", "(" + make(condition) + ")" ]) + ";";
+ },
+ "return": function(expr) {
+ var out = [ "return" ];
+ if (expr != null) out.push(make(expr));
+ return add_spaces(out) + ";";
+ },
+ "binary": function(operator, lvalue, rvalue) {
+ var left = make(lvalue), right = make(rvalue);
+ // XXX: I'm pretty sure other cases will bite here.
+ // we need to be smarter.
+ // adding parens all the time is the safest bet.
+ if (member(lvalue[0], [ "assign", "conditional", "seq" ]) ||
+ lvalue[0] == "binary" && PRECEDENCE[operator] > PRECEDENCE[lvalue[1]]) {
+ left = "(" + left + ")";
+ }
+ if (member(rvalue[0], [ "assign", "conditional", "seq" ]) ||
+ rvalue[0] == "binary" && PRECEDENCE[operator] >= PRECEDENCE[rvalue[1]]) {
+ right = "(" + right + ")";
+ }
+ return add_spaces([ left, operator, right ]);
+ },
+ "unary-prefix": function(operator, expr) {
+ var val = make(expr);
+ if (!(expr[0] == "num" || (expr[0] == "unary-prefix" && !HOP(OPERATORS, operator + expr[1])) || !needs_parens(expr)))
+ val = "(" + val + ")";
+ return operator + (jsp.is_alphanumeric_char(operator.charAt(0)) ? " " : "") + val;
+ },
+ "unary-postfix": function(operator, expr) {
+ var val = make(expr);
+ if (!(expr[0] == "num" || (expr[0] == "unary-postfix" && !HOP(OPERATORS, operator + expr[1])) || !needs_parens(expr)))
+ val = "(" + val + ")";
+ return val + operator;
+ },
+ "sub": function(expr, subscript) {
+ var hash = make(expr);
+ if (needs_parens(expr))
+ hash = "(" + hash + ")";
+ return hash + "[" + make(subscript) + "]";
+ },
+ "object": function(props) {
+ if (props.length == 0)
+ return "{}";
+ return "{" + newline + with_indent(function(){
+ return MAP(props, function(p){
+ if (p.length == 3) {
+ // getter/setter. The name is in p[0], the arg.list in p[1][2], the
+ // body in p[1][3] and type ("get" / "set") in p[2].
+ return indent(make_function(p[0], p[1][2], p[1][3], p[2]));
+ }
+ var key = p[0], val = make(p[1]);
+ if (beautify && beautify.quote_keys) {
+ key = make_string(key);
+ } else if (typeof key == "number" || !beautify && +key + "" == key) {
+ key = make_num(+key);
+ } else if (!is_identifier(key)) {
+ key = make_string(key);
+ }
+ return indent(add_spaces(beautify && beautify.space_colon
+ ? [ key, ":", val ]
+ : [ key + ":", val ]));
+ }).join("," + newline);
+ }) + newline + indent("}");
+ },
+ "regexp": function(rx, mods) {
+ return "/" + rx + "/" + mods;
+ },
+ "array": function(elements) {
+ if (elements.length == 0) return "[]";
+ return add_spaces([ "[", add_commas(MAP(elements, function(el){
+ return parenthesize(el, "seq");
+ })), "]" ]);
+ },
+ "stat": function(stmt) {
+ return make(stmt).replace(/;*\s*$/, ";");
+ },
+ "seq": function() {
+ return add_commas(MAP(slice(arguments), make));
+ },
+ "label": function(name, block) {
+ return add_spaces([ make_name(name), ":", make(block) ]);
+ },
+ "with": function(expr, block) {
+ return add_spaces([ "with", "(" + make(expr) + ")", make(block) ]);
+ },
+ "atom": function(name) {
+ return make_name(name);
+ },
+ "comment1": function(text) {
+ return "//" + text + "\n";
+ },
+ "comment2": function(text) {
+ return "/*" + text + "*/";
+ }
+ };
+
+ // The squeezer replaces "block"-s that contain only a single
+ // statement with the statement itself; technically, the AST
+ // is correct, but this can create problems when we output an
+ // IF having an ELSE clause where the THEN clause ends in an
+ // IF *without* an ELSE block (then the outer ELSE would refer
+ // to the inner IF). This function checks for this case and
+ // adds the block brackets if needed.
+ function make_then(th) {
+ if (th[0] == "do") {
+ // https://github.com/mishoo/UglifyJS/issues/#issue/57
+ // IE croaks with "syntax error" on code like this:
+ // if (foo) do ... while(cond); else ...
+ // we need block brackets around do/while
+ return make([ "block", [ th ]]);
+ }
+ var b = th;
+ while (true) {
+ var type = b[0];
+ if (type == "if") {
+ if (!b[3])
+ // no else, we must add the block
+ return make([ "block", [ th ]]);
+ b = b[3];
+ }
+ else if (type == "while" || type == "do") b = b[2];
+ else if (type == "for" || type == "for-in") b = b[4];
+ else break;
+ }
+ return make(th);
+ };
+
+ function make_function(name, args, body, keyword) {
+ var out = keyword || "function";
+ if (name) {
+ out += " " + make_name(name);
+ }
+ out += "(" + add_commas(MAP(args, make_name)) + ")";
+ return add_spaces([ out, make_block(body) ]);
+ };
+
+ function make_name(name) {
+ return name.toString();
+ };
+
+ function make_block_statements(statements) {
+ for (var a = [], last = statements.length - 1, i = 0; i <= last; ++i) {
+ var stat = statements[i];
+ var code = make(stat);
+ if (code != ";") {
+ if (!beautify && i == last)
+ code = code.replace(/;+\s*$/, "");
+ a.push(code);
+ }
+ }
+ return MAP(a, indent);
+ };
+
+ function make_switch_block(body) {
+ var n = body.length;
+ if (n == 0) return "{}";
+ return "{" + newline + MAP(body, function(branch, i){
+ var has_body = branch[1].length > 0, code = with_indent(function(){
+ return indent(branch[0]
+ ? add_spaces([ "case", make(branch[0]) + ":" ])
+ : "default:");
+ }, 0.5) + (has_body ? newline + with_indent(function(){
+ return make_block_statements(branch[1]).join(newline);
+ }) : "");
+ if (!beautify && has_body && i < n - 1)
+ code += ";";
+ return code;
+ }).join(newline) + newline + indent("}");
+ };
+
+ function make_block(statements) {
+ if (!statements) return ";";
+ if (statements.length == 0) return "{}";
+ return "{" + newline + with_indent(function(){
+ return make_block_statements(statements).join(newline);
+ }) + newline + indent("}");
+ };
+
+ function make_1vardef(def) {
+ var name = def[0], val = def[1];
+ if (val != null)
+ name = add_spaces([ name, "=", make(val) ]);
+ return name;
+ };
+
+ var $stack = [];
+
+ function make(node) {
+ var type = node[0];
+ var gen = generators[type];
+ if (!gen)
+ throw new Error("Can't find generator for \"" + type + "\"");
+ $stack.push(node);
+ var ret = gen.apply(type, node.slice(1));
+ $stack.pop();
+ return ret;
+ };
+
+ return make(ast);
+};
+
+/* -----[ Utilities ]----- */
+
+function repeat_string(str, i) {
+ if (i <= 0) return "";
+ if (i == 1) return str;
+ var d = repeat_string(str, i >> 1);
+ d += d;
+ if (i & 1) d += str;
+ return d;
+};
+
+function defaults(args, defs) {
+ var ret = {};
+ if (args === true)
+ args = {};
+ for (var i in defs) if (HOP(defs, i)) {
+ ret[i] = (args && HOP(args, i)) ? args[i] : defs[i];
+ }
+ return ret;
+};
+
+function is_identifier(name) {
+ return /^[a-z_$][a-z0-9_$]*$/i.test(name)
+ && name != "this"
+ && !HOP(jsp.KEYWORDS_ATOM, name)
+ && !HOP(jsp.RESERVED_WORDS, name)
+ && !HOP(jsp.KEYWORDS, name);
+};
+
+function HOP(obj, prop) {
+ return Object.prototype.hasOwnProperty.call(obj, prop);
+};
+
+// some utilities
+
+var MAP;
+
+(function(){
+ MAP = function(a, f, o) {
+ var ret = [];
+ for (var i = 0; i < a.length; ++i) {
+ var val = f.call(o, a[i], i);
+ if (val instanceof AtTop) ret.unshift(val.v);
+ else ret.push(val);
+ }
+ return ret;
+ };
+ MAP.at_top = function(val) { return new AtTop(val) };
+ function AtTop(val) { this.v = val };
+})();
+
+/* -----[ Exports ]----- */
+
+exports.ast_walker = ast_walker;
+exports.ast_mangle = ast_mangle;
+exports.ast_squeeze = ast_squeeze;
+exports.gen_code = gen_code;
+exports.ast_add_scope = ast_add_scope;
+exports.ast_squeeze_more = require("./squeeze-more").ast_squeeze_more;
+exports.set_logger = function(logger) { warn = logger };
--- /dev/null
+var jsp = require("./parse-js"),
+ pro = require("./process"),
+ slice = jsp.slice,
+ member = jsp.member,
+ PRECEDENCE = jsp.PRECEDENCE,
+ OPERATORS = jsp.OPERATORS;
+
+function ast_squeeze_more(ast) {
+ var w = pro.ast_walker(), walk = w.walk;
+ return w.with_walkers({
+ "call": function(expr, args) {
+ if (expr[0] == "dot" && expr[2] == "toString" && args.length == 0) {
+ // foo.toString() ==> foo+""
+ return [ "binary", "+", expr[1], [ "string", "" ]];
+ }
+ }
+ }, function() {
+ return walk(ast);
+ });
+};
+
+exports.ast_squeeze_more = ast_squeeze_more;
--- /dev/null
+#! /usr/bin/env node
+// -*- js2 -*-
+
+global.sys = require(/^v0\.[012]/.test(process.version) ? "sys" : "util");
+var fs = require("fs"),
+ jsp = require("./lib/parse-js"),
+ pro = require("./lib/process");
+
+pro.set_logger(function(msg){
+ sys.debug(msg);
+});
+
+var options = {
+ ast: false,
+ mangle: true,
+ mangle_toplevel: false,
+ squeeze: true,
+ make_seqs: true,
+ dead_code: true,
+ beautify: false,
+ verbose: false,
+ show_copyright: true,
+ out_same_file: false,
+ extra: false,
+ unsafe: false, // XXX: extra & unsafe? but maybe we don't want both, so....
+ beautify_options: {
+ indent_level: 4,
+ indent_start: 0,
+ quote_keys: false,
+ space_colon: 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.beautify = true;
+ break;
+ case "-i":
+ case "--indent":
+ options.beautify_options.indent_level = args.shift();
+ break;
+ case "-q":
+ case "--quote-keys":
+ options.beautify_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 "--extra":
+ options.extra = true;
+ break;
+ case "--unsafe":
+ options.unsafe = true;
+ break;
+ default:
+ filename = v;
+ break out;
+ }
+}
+
+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);
+ 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 initial_comments = [];
+ // keep first comment
+ var tok = jsp.tokenizer(code, false), c;
+ c = tok();
+ var prev = null;
+ while (/^comment/.test(c.type) && (!prev || prev == c.type)) {
+ initial_comments.push(c);
+ prev = c.type;
+ c = tok();
+ }
+ result += show_copyright(initial_comments);
+ }
+ try {
+ var ast = time_it("parse", function(){ return jsp.parse(code); });
+ if (options.mangle)
+ ast = time_it("mangle", function(){ return pro.ast_mangle(ast, options.mangle_toplevel); });
+ if (options.squeeze)
+ ast = time_it("squeeze", function(){
+ ast = pro.ast_squeeze(ast, {
+ make_seqs : options.make_seqs,
+ dead_code : options.dead_code,
+ extra : options.extra
+ });
+ 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.beautify && options.beautify_options) });
+ return result;
+ } catch(ex) {
+ sys.debug(ex.stack);
+ sys.debug(sys.inspect(ex));
+ sys.debug(JSON.stringify(ex));
+ }
+};
+
+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."); }
+};
} else if ( type === "undefined" || type === "boolean" ) {
if ( this.className ) {
// store className if set
- jQuery.data( this, "__className__", this.className );
+ jQuery._data( this, "__className__", this.className );
}
// toggle whole className
- this.className = this.className || value === false ? "" : jQuery.data( this, "__className__" ) || "";
+ this.className = this.className || value === false ? "" : jQuery._data( this, "__className__" ) || "";
}
});
},
script.type = "text/javascript";
- if ( jQuery.support.scriptEval ) {
+ if ( jQuery.support.scriptEval() ) {
script.appendChild( document.createTextNode( data ) );
} else {
script.text = data;
(function( jQuery ) {
-var windowData = {},
- rbrace = /^(?:\{.*\}|\[.*\])$/;
+var rbrace = /^(?:\{.*\}|\[.*\])$/;
jQuery.extend({
cache: {},
},
hasData: function( elem ) {
- if ( elem.nodeType ) {
- elem = jQuery.cache[ elem[jQuery.expando] ];
- }
+ elem = elem.nodeType ? jQuery.cache[ elem[jQuery.expando] ] : elem[ jQuery.expando ];
return !!elem && !jQuery.isEmptyObject(elem);
},
- data: function( elem, name, data ) {
+ data: function( elem, name, data, pvt /* Internal Use Only */ ) {
if ( !jQuery.acceptData( elem ) ) {
return;
}
- elem = elem == window ?
- windowData :
- elem;
+ var internalKey = jQuery.expando, getByName = typeof name === "string", thisCache,
+
+ // We have to handle DOM nodes and JS objects differently because IE6-7
+ // can't GC object references properly across the DOM-JS boundary
+ isNode = elem.nodeType,
+
+ // Only DOM nodes need the global jQuery cache; JS object data is
+ // attached directly to the object so GC can occur automatically
+ cache = isNode ? jQuery.cache : elem,
- var isNode = elem.nodeType,
- id = isNode ? elem[ jQuery.expando ] : null,
- cache = jQuery.cache, thisCache;
+ // Only defining an ID for JS objects if its cache already exists allows
+ // the code to shortcut on the same path as a DOM node with no cache
+ id = isNode ? elem[ jQuery.expando ] : elem[ jQuery.expando ] && jQuery.expando;
- if ( isNode && !id && typeof name === "string" && data === undefined ) {
+ // Avoid doing any more work than we need to when trying to get data on an
+ // object that has no data at all
+ if ( (!id || (pvt && id && !cache[ id ][ internalKey ])) && getByName && data === undefined ) {
return;
}
- // Get the data from the object directly
- if ( !isNode ) {
- cache = elem;
+ if ( !id ) {
+ // Only DOM nodes need a new unique ID for each element since their data
+ // ends up in the global cache
+ if ( isNode ) {
+ elem[ jQuery.expando ] = id = ++jQuery.uuid;
+ } else {
+ id = jQuery.expando;
+ }
+ }
- // Compute a unique ID for the element
- } else if ( !id ) {
- elem[ jQuery.expando ] = id = ++jQuery.uuid;
+ if ( !cache[ id ] ) {
+ cache[ id ] = {};
}
- // Avoid generating a new cache unless none exists and we
- // want to manipulate it.
+ // An object can be passed to jQuery.data instead of a key/value pair; this gets
+ // shallow copied over onto the existing cache
if ( typeof name === "object" ) {
- if ( isNode ) {
+ if ( pvt ) {
+ cache[ id ][ internalKey ] = jQuery.extend(cache[ id ][ internalKey ], name);
+ } else {
cache[ id ] = jQuery.extend(cache[ id ], name);
+ }
+ }
- } else {
- jQuery.extend( cache, name );
+ thisCache = cache[ id ];
+
+ // Internal jQuery data is stored in a separate object inside the object's data
+ // cache in order to avoid key collisions between internal data and user-defined
+ // data
+ if ( pvt ) {
+ if ( !thisCache[ internalKey ] ) {
+ thisCache[ internalKey ] = {};
}
- } else if ( isNode && !cache[ id ] ) {
- cache[ id ] = {};
+ thisCache = thisCache[ internalKey ];
}
- thisCache = isNode ? cache[ id ] : cache;
-
- // Prevent overriding the named cache with undefined values
if ( data !== undefined ) {
thisCache[ name ] = data;
}
- return typeof name === "string" ? thisCache[ name ] : thisCache;
+ // TODO: This is a hack for 1.5 ONLY. It will be removed in 1.6. Users should
+ // not attempt to inspect the internal events object using jQuery.data, as this
+ // internal data object is undocumented and subject to change.
+ if ( name === "events" && !thisCache[name] ) {
+ return thisCache[ internalKey ] && thisCache[ internalKey ].events;
+ }
+
+ return getByName ? thisCache[ name ] : thisCache;
},
- removeData: function( elem, name ) {
+ removeData: function( elem, name, pvt /* Internal Use Only */ ) {
if ( !jQuery.acceptData( elem ) ) {
return;
}
- elem = elem == window ?
- windowData :
- elem;
+ var internalKey = jQuery.expando, isNode = elem.nodeType,
+
+ // See jQuery.data for more information
+ cache = isNode ? jQuery.cache : elem,
- var isNode = elem.nodeType,
- id = isNode ? elem[ jQuery.expando ] : elem,
- cache = jQuery.cache,
- thisCache = isNode ? cache[ id ] : id;
+ // See jQuery.data for more information
+ id = isNode ? elem[ jQuery.expando ] : jQuery.expando;
+
+ // If there is already no cache entry for this object, there is no
+ // purpose in continuing
+ if ( !cache[ id ] ) {
+ return;
+ }
- // If we want to remove a specific section of the element's data
if ( name ) {
+ var thisCache = pvt ? cache[ id ][ internalKey ] : cache[ id ];
+
if ( thisCache ) {
- // Remove the section of cache data
delete thisCache[ name ];
- // If we've removed all the data, remove the element's cache
- if ( isNode && jQuery.isEmptyObject(thisCache) ) {
- jQuery.removeData( elem );
+ // If there is no data left in the cache, we want to continue
+ // and let the cache object itself get destroyed
+ if ( !jQuery.isEmptyObject(thisCache) ) {
+ return;
}
}
+ }
+
+ // See jQuery.data for more information
+ if ( pvt ) {
+ delete cache[ id ][ internalKey ];
+
+ // Don't destroy the parent cache unless the internal data object
+ // had been the only thing left in it
+ if ( !jQuery.isEmptyObject(cache[ id ]) ) {
+ return;
+ }
+ }
+
+ var internalCache = cache[ id ][ internalKey ];
- // Otherwise, we want to remove all of the element's data
+ // Browsers that fail expando deletion also refuse to delete expandos on
+ // the window, but it will allow it on all other JS objects; other browsers
+ // don't care
+ if ( jQuery.support.deleteExpando || cache != window ) {
+ delete cache[ id ];
} else {
- if ( isNode && jQuery.support.deleteExpando ) {
- delete elem[ jQuery.expando ];
+ cache[ id ] = null;
+ }
+ // We destroyed the entire user cache at once because it's faster than
+ // iterating through each key, but we need to continue to persist internal
+ // data if it existed
+ if ( internalCache ) {
+ cache[ id ] = {};
+ cache[ id ][ internalKey ] = internalCache;
+
+ // Otherwise, we need to eliminate the expando on the node to avoid
+ // false lookups in the cache for entries that no longer exist
+ } else if ( isNode ) {
+ // IE does not allow us to delete expando properties from nodes,
+ // nor does it have a removeAttribute function on Document nodes;
+ // we must handle all of these cases
+ if ( jQuery.support.deleteExpando ) {
+ delete elem[ jQuery.expando ];
} else if ( elem.removeAttribute ) {
elem.removeAttribute( jQuery.expando );
-
- // Completely remove the data cache
- } else if ( isNode ) {
- delete cache[ id ];
-
- // Remove all fields from the object
} else {
- for ( var n in elem ) {
- delete elem[ n ];
- }
+ elem[ jQuery.expando ] = null;
}
}
},
+ // For internal use only.
+ _data: function( elem, name, data ) {
+ return jQuery.data( elem, name, data, true );
+ },
+
// A method for determining if a DOM node can handle the data expando
acceptData: function( elem ) {
if ( elem.nodeName ) {
// Reset the inline display of this element to learn if it is
// being hidden by cascaded rules or not
- if ( !jQuery.data(elem, "olddisplay") && display === "none" ) {
+ if ( !jQuery._data(elem, "olddisplay") && display === "none" ) {
display = elem.style.display = "";
}
// in a stylesheet to whatever the default browser style is
// for such an element
if ( display === "" && jQuery.css( elem, "display" ) === "none" ) {
- jQuery.data(elem, "olddisplay", defaultDisplay(elem.nodeName));
+ jQuery._data(elem, "olddisplay", defaultDisplay(elem.nodeName));
}
}
display = elem.style.display;
if ( display === "" || display === "none" ) {
- elem.style.display = jQuery.data(elem, "olddisplay") || "";
+ elem.style.display = jQuery._data(elem, "olddisplay") || "";
}
}
for ( var i = 0, j = this.length; i < j; i++ ) {
var display = jQuery.css( this[i], "display" );
- if ( display !== "none" && !jQuery.data( this[i], "olddisplay" ) ) {
- jQuery.data( this[i], "olddisplay", display );
+ if ( display !== "none" && !jQuery._data( this[i], "olddisplay" ) ) {
+ jQuery._data( this[i], "olddisplay", display );
}
}
fcleanup = function( nm ) {
return nm.replace(rescape, "\\$&");
},
- focusCounts = { focusin: 0, focusout: 0 };
+ focusCounts = { focusin: 0, focusout: 0 },
+ eventKey = "events";
/*
* A number of helper functions used for managing events.
}
// Init the element's event structure
- var elemData = jQuery.data( elem );
+ var elemData = jQuery._data( elem );
// If no elemData is found then we must be trying to bind to one of the
// banned noData elements
return;
}
- // Use a key less likely to result in collisions for plain JS objects.
- // Fixes bug #7150.
- var eventKey = elem.nodeType ? "events" : "__events__",
- events = elemData[ eventKey ],
+ var events = elemData[ eventKey ],
eventHandle = elemData.handle;
if ( typeof events === "function" ) {
}
var ret, type, fn, j, i = 0, all, namespaces, namespace, special, eventType, handleObj, origType,
- eventKey = elem.nodeType ? "events" : "__events__",
- elemData = jQuery.data( elem ),
+ elemData = jQuery.hasData( elem ) && jQuery._data( elem ),
events = elemData && elemData[ eventKey ];
if ( !elemData || !events ) {
delete elemData.handle;
if ( typeof elemData === "function" ) {
- jQuery.removeData( elem, eventKey );
+ jQuery.removeData( elem, eventKey, true );
} else if ( jQuery.isEmptyObject( elemData ) ) {
- jQuery.removeData( elem );
+ jQuery.removeData( elem, undefined, true );
}
}
},
// Only trigger if we've ever bound an event for it
if ( jQuery.event.global[ type ] ) {
+ // XXX This code smells terrible. event.js should not be directly
+ // inspecting the data cache
jQuery.each( jQuery.cache, function() {
- if ( this.events && this.events[type] ) {
- jQuery.event.trigger( event, data, this.handle.elem );
+ // internalKey variable is just used to make it easier to find
+ // and potentially change this stuff later; currently it just
+ // points to jQuery.expando
+ var internalKey = jQuery.expando,
+ internalCache = this[ internalKey ];
+ if ( internalCache && internalCache.events && internalCache.events[type] ) {
+ jQuery.event.trigger( event, data, internalCache.handle.elem );
}
});
}
// Trigger the event, it is assumed that "handle" is a function
var handle = elem.nodeType ?
- jQuery.data( elem, "handle" ) :
- (jQuery.data( elem, "__events__" ) || {}).handle;
+ jQuery._data( elem, "handle" ) :
+ (jQuery._data( elem, eventKey ) || {}).handle;
if ( handle ) {
handle.apply( elem, data );
event.namespace = event.namespace || namespace_sort.join(".");
- events = jQuery.data(this, this.nodeType ? "events" : "__events__");
+ events = jQuery._data(this, eventKey);
if ( typeof events === "function" ) {
events = events.events;
return;
}
- data = jQuery.data( elem, "_change_data" );
+ data = jQuery._data( elem, "_change_data" );
val = getVal(elem);
// the current data will be also retrieved by beforeactivate
if ( e.type !== "focusout" || elem.type !== "radio" ) {
- jQuery.data( elem, "_change_data", val );
+ jQuery._data( elem, "_change_data", val );
}
if ( data === undefined || val === data ) {
// information
beforeactivate: function( e ) {
var elem = e.target;
- jQuery.data( elem, "_change_data", getVal(elem) );
+ jQuery._data( elem, "_change_data", getVal(elem) );
}
},
return this.click( jQuery.proxy( fn, function( event ) {
// Figure out which function to execute
- var lastToggle = ( jQuery.data( this, "lastToggle" + fn.guid ) || 0 ) % i;
- jQuery.data( this, "lastToggle" + fn.guid, lastToggle + 1 );
+ var lastToggle = ( jQuery._data( this, "lastToggle" + fn.guid ) || 0 ) % i;
+ jQuery._data( this, "lastToggle" + fn.guid, lastToggle + 1 );
// Make sure that clicks stop
event.preventDefault();
var stop, maxLevel, related, match, handleObj, elem, j, i, l, data, close, namespace, ret,
elems = [],
selectors = [],
- events = jQuery.data( this, this.nodeType ? "events" : "__events__" );
+ events = jQuery._data( this, eventKey );
if ( typeof events === "function" ) {
events = events.events;
table ?
root(this[i], first) :
this[i],
- i > 0 || results.cacheable || this.length > 1 ?
+ i > 0 || results.cacheable || (this.length > 1 && i > 0) ?
jQuery(fragment).clone(true)[0] :
fragment
);
throw "Cloned data mismatch";
}
- var oldData = jQuery.data( orig[nodeIndex] ),
- curData = jQuery.data( this, oldData ),
- events = oldData && oldData.events;
+ var internalKey = jQuery.expando,
+ oldData = jQuery.data( orig[nodeIndex] ),
+ curData = jQuery.data( this, oldData );
- if ( events ) {
- delete curData.handle;
- curData.events = {};
+ // Switch to use the internal data object, if it exists, for the next
+ // stage of data copying
+ if ( (oldData = oldData[ internalKey ]) ) {
+ var events = oldData.events;
+ curData = curData[ internalKey ] = jQuery.extend({}, oldData);
- for ( var type in events ) {
- for ( var i = 0, l = events[ type ].length; i < l; i++ ) {
- jQuery.event.add( this, type, events[ type ][ i ], events[ type ][ i ].data );
+ if ( events ) {
+ delete curData.handle;
+ curData.events = {};
+
+ for ( var type in events ) {
+ for ( var i = 0, l = events[ type ].length; i < l; i++ ) {
+ jQuery.event.add( this, type, events[ type ][ i ], events[ type ][ i ].data );
+ }
}
}
}
},
cleanData: function( elems ) {
- var data, id, cache = jQuery.cache,
- special = jQuery.event.special,
+ var data, id, cache = jQuery.cache, internalKey = jQuery.expando, special = jQuery.event.special,
deleteExpando = jQuery.support.deleteExpando;
for ( var i = 0, elem; (elem = elems[i]) != null; i++ ) {
id = elem[ jQuery.expando ];
if ( id ) {
- data = cache[ id ];
+ data = cache[ id ] && cache[ id ][ internalKey ];
if ( data && data.events ) {
for ( var type in data.events ) {
if ( special[ type ] ) {
jQuery.event.remove( elem, type );
+ // This is a shortcut to avoid jQuery.event.remove's overhead
} else {
jQuery.removeEvent( elem, type, data.handle );
}
// Make sure we're not dealing with a disconnected DOM node
if ( !box || !jQuery.contains( docElem, elem ) ) {
- return box || { top: 0, left: 0 };
+ return box ? { top: box.top, left: box.left } : { top: 0, left: 0 };
}
var body = doc.body,
}
type = (type || "fx") + "queue";
- var q = jQuery.data( elem, type );
+ var q = jQuery._data( elem, type );
// Speed up dequeue by getting out quickly if this is just a lookup
if ( !data ) {
}
if ( !q || jQuery.isArray(data) ) {
- q = jQuery.data( elem, type, jQuery.makeArray(data) );
+ q = jQuery._data( elem, type, jQuery.makeArray(data) );
} else {
q.push( data );
jQuery.dequeue(elem, type);
});
}
+
+ if ( !queue.length ) {
+ jQuery.removeData( elem, type + "queue", true );
+ }
}
});
jQuery.support = {};
- var root = document.documentElement,
- script = document.createElement("script"),
- div = document.createElement("div"),
- id = "script" + jQuery.now();
+ var div = document.createElement("div");
div.style.display = "none";
div.innerHTML = " <link/><table></table><a href='/a' style='color:red;float:left;opacity:.55;'>a</a><input type='checkbox'/>";
deleteExpando: true,
optDisabled: false,
checkClone: false,
- scriptEval: false,
+ _scriptEval: null,
noCloneEvent: true,
boxModel: null,
inlineBlockNeedsLayout: false,
select.disabled = true;
jQuery.support.optDisabled = !opt.disabled;
- script.type = "text/javascript";
- try {
- script.appendChild( document.createTextNode( "window." + id + "=1;" ) );
- } catch(e) {}
-
- root.insertBefore( script, root.firstChild );
+ jQuery.support.scriptEval = function() {
+ if ( jQuery.support._scriptEval === null ) {
+ var root = document.documentElement,
+ script = document.createElement("script"),
+ id = "script" + jQuery.now();
+
+ script.type = "text/javascript";
+ try {
+ script.appendChild( document.createTextNode( "window." + id + "=1;" ) );
+ } catch(e) {}
+
+ root.insertBefore( script, root.firstChild );
+
+ // Make sure that the execution of code works by injecting a script
+ // tag with appendChild/createTextNode
+ // (IE doesn't support this, fails, and uses .text instead)
+ if ( window[ id ] ) {
+ jQuery.support._scriptEval = true;
+ delete window[ id ];
+ } else {
+ jQuery.support._scriptEval = false;
+ }
+
+ root.removeChild( script );
+ // release memory in IE
+ root = script = id = null;
+ }
- // Make sure that the execution of code works by injecting a script
- // tag with appendChild/createTextNode
- // (IE doesn't support this, fails, and uses .text instead)
- if ( window[ id ] ) {
- jQuery.support.scriptEval = true;
- delete window[ id ];
- }
+ return jQuery.support._scriptEval;
+ };
// Test to see if it's possible to delete an expando from an element
// Fails in Internet Explorer
try {
- delete script.test;
+ delete div.test;
} catch(e) {
jQuery.support.deleteExpando = false;
}
- root.removeChild( script );
-
if ( div.attachEvent && div.fireEvent ) {
div.attachEvent("onclick", function click() {
// Cloning a node shouldn't copy over any
var el = document.createElement("div");
eventName = "on" + eventName;
+ // We only care about the case where non-standard event systems
+ // are used, namely in IE. Short-circuiting here helps us to
+ // avoid an eval call (in setAttribute) which can cause CSP
+ // to go haywire. See: https://developer.mozilla.org/en/Security/CSP
+ if ( !el.attachEvent ) {
+ return true;
+ }
+
var isSupported = (eventName in el);
if ( !isSupported ) {
el.setAttribute(eventName, "return;");
jQuery.support.changeBubbles = eventSupported("change");
// release memory in IE
- root = script = div = all = a = null;
+ div = all = a = null;
})();
})( jQuery );
--- /dev/null
+<?php header("X-Content-Security-Policy-Report-Only: allow *"); ?>
+<!DOCTYPE html>
+<html>
+<head>
+ <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+ <title>CSP Test Page</title>
+
+ <script src="../src/core.js"></script>
+ <script src="../src/support.js"></script>
+ <script src="../src/data.js"></script>
+ <script src="../src/queue.js"></script>
+ <script src="../src/attributes.js"></script>
+ <script src="../src/event.js"></script>
+ <script src="../src/sizzle/sizzle.js"></script>
+ <script src="../src/sizzle-jquery.js"></script>
+ <script src="../src/traversing.js"></script>
+ <script src="../src/manipulation.js"></script>
+ <script src="../src/css.js"></script>
+ <script src="../src/ajax.js"></script>
+ <script src="../src/ajax/jsonp.js"></script>
+ <script src="../src/ajax/script.js"></script>
+ <script src="../src/ajax/xhr.js"></script>
+ <script src="../src/effects.js"></script>
+ <script src="../src/offset.js"></script>
+ <script src="../src/dimensions.js"></script>
+</head>
+<body>
+ <p>CSP Test Page</p>
+</body>
+</html>
function url(value) {
return value + (/\?/.test(value) ? "&" : "?") + new Date().getTime() + "" + parseInt(Math.random()*100000);
}
+
+(function () {
+ // Store the old counts so that we only assert on tests that have actually leaked,
+ // instead of asserting every time a test has leaked sometime in the past
+ var oldCacheLength = 0,
+ oldFragmentsLength = 0,
+ oldTimersLength = 0,
+ oldActive = 0;
+
+ /**
+ * Ensures that tests have cleaned up properly after themselves. Should be passed as the
+ * teardown function on all modules' lifecycle object.
+ */
+ this.moduleTeardown = function () {
+ var i, fragmentsLength = 0, cacheLength = 0;
+
+ // Allow QUnit.reset to clean up any attached elements before checking for leaks
+ QUnit.reset();
+
+ for ( i in jQuery.cache ) {
+ ++cacheLength;
+ }
+
+ jQuery.fragments = {};
+
+ for ( i in jQuery.fragments ) {
+ ++fragmentsLength;
+ }
+
+ // Because QUnit doesn't have a mechanism for retrieving the number of expected assertions for a test,
+ // if we unconditionally assert any of these, the test will fail with too many assertions :|
+ if ( cacheLength !== oldCacheLength ) {
+ equals( cacheLength, oldCacheLength, "No unit tests leak memory in jQuery.cache" );
+ oldCacheLength = cacheLength;
+ }
+ if ( fragmentsLength !== oldFragmentsLength ) {
+ equals( fragmentsLength, oldFragmentsLength, "No unit tests leak memory in jQuery.fragments" );
+ oldFragmentsLength = fragmentsLength;
+ }
+ if ( jQuery.timers.length !== oldTimersLength ) {
+ equals( jQuery.timers.length, oldTimersLength, "No timers are still running" );
+ oldTimersLength = jQuery.timers.length;
+ }
+ if ( jQuery.active !== oldActive ) {
+ equals( jQuery.active, 0, "No AJAX requests are still active" );
+ oldActive = jQuery.active;
+ }
+ }
+}());
\ No newline at end of file
<div id="slidetoggleout" class='chain test out'>slideToggleOut<div>slideToggleOut</div></div>
<div id="fadetogglein" class='chain test'>fadeToggleIn<div>fadeToggleIn</div></div>
- <div id="fadetoggleout" class='chain test out'>fadeToggleOut<div>fadeToggleOut</div></div>
+ <div id="fadetoggleout" class='chain test out'>fadeToggleOut<div>fadeToggleOut</div></div>
<div id="fadeto" class='chain test'>fadeTo<div>fadeTo</div></div>
</div>
-module("ajax");
+module("ajax", { teardown: moduleTeardown });
// Safari 3 randomly crashes when running these tests,
// but only in the full suite - you can run just the Ajax
-module("attributes");
+module("attributes", { teardown: moduleTeardown });
var bareObj = function(value) { return value; };
var functionReturningObj = function(value) { return (function() { return value; }); };
// toggleClass storage
e.toggleClass(true);
- ok( e.get(0).className === "", "Assert class is empty (data was empty)" );
+ ok( e[0].className === "", "Assert class is empty (data was empty)" );
e.addClass("testD testE");
ok( e.is(".testD.testE"), "Assert class present" );
e.toggleClass();
ok( !e.is(".testD.testE"), "Assert class not present" );
- ok( e.data('__className__') === 'testD testE', "Assert data was stored" );
+ ok( jQuery._data(e[0], '__className__') === 'testD testE', "Assert data was stored" );
e.toggleClass();
ok( e.is(".testD.testE"), "Assert class present (restored from data)" );
e.toggleClass(false);
e.toggleClass();
ok( e.is(".testD.testE"), "Assert class present (restored from data)" );
-
-
// Cleanup
e.removeClass("testD");
- e.removeData('__className__');
+ jQuery.removeData(e[0], '__className__', true);
};
test("toggleClass(String|boolean|undefined[, boolean])", function() {
// Cleanup
e.removeClass("test");
- e.removeData('__className__');
+ jQuery.removeData(e[0], '__className__', true);
});
test("addClass, removeClass, hasClass", function() {
-module("core");
+module("core", { teardown: moduleTeardown });
test("Basic requirements", function() {
expect(7);
exec = true;
elem.click();
+ // manually clean up detached elements
+ elem.remove();
+
for ( var i = 0; i < 3; ++i ) {
elem = jQuery("<input type='text' value='TEST' />");
}
equals( elem[0].defaultValue, "TEST", "Ensure cached nodes are cloned properly (Bug #6655)" );
+
+ // manually clean up detached elements
+ elem.remove();
});
test("selector state", function() {
-module("css");
+module("css", { teardown: moduleTeardown });
test("css(String|Hash)", function() {
expect(41);
test("internal ref to elem.runtimeStyle (bug #7608)", function () {
expect(1);
-
- var result = true,
- val = 10;
+ var result = true;
- jQuery('<div id="bug7608" style="width:200px;border:solid 1px red;">' +
- '<div id="test" style="width:0%; background:#000;"> </div></div>').appendTo("#main");
-
try {
- // the bug is located within src/css.js
- jQuery("#bug7608 #test").animate( { width: val }, 1000);
-
+ jQuery("#foo").css( { width: "0%" } ).css("width");
} catch (e) {
result = false;
}
ok( result, "elem.runtimeStyle does not throw exception" );
-
- jQuery("#bug7608").remove();
});
-module("data");
+module("data", { teardown: moduleTeardown });
test("expando", function(){
- expect(6);
+ expect(1);
equals("expando" in jQuery, true, "jQuery is exposing the expando");
+});
- var obj = {};
- equals( jQuery.data(obj), obj, "jQuery.data(obj) returns the object");
- equals( jQuery.expando in obj, false, "jQuery.data(obj) did not add an expando to the object" );
+function dataTests (elem) {
+ // expect(32)
- obj = {};
- jQuery.data(obj, 'test');
- equals( jQuery.expando in obj, false, "jQuery.data(obj,key) did not add an expando to the object" );
+ function getCacheLength() {
+ var cacheLength = 0;
+ for (var i in jQuery.cache) {
+ ++cacheLength;
+ }
- obj = {};
- jQuery.data(obj, "foo", "bar");
- equals( jQuery.expando in obj, false, "jQuery.data(obj,key,value) did not add an expando to the object" );
- equals( obj.foo, "bar", "jQuery.data(obj,key,value) sets fields directly on the object." );
-});
+ return cacheLength;
+ }
-test("jQuery.acceptData", function() {
- expect(7);
+ equals( jQuery.data(elem, "foo"), undefined, "No data exists initially" );
+ strictEqual( jQuery.hasData(elem), false, "jQuery.hasData agrees no data exists initially" );
- ok( jQuery.acceptData( document ), "document" );
- ok( jQuery.acceptData( document.documentElement ), "documentElement" );
- ok( jQuery.acceptData( {} ), "object" );
- ok( !jQuery.acceptData( document.createElement("embed") ), "embed" );
- ok( !jQuery.acceptData( document.createElement("applet") ), "applet" );
+ var dataObj = jQuery.data(elem);
+ equals( typeof dataObj, "object", "Calling data with no args gives us a data object reference" );
+ strictEqual( jQuery.data(elem), dataObj, "Calling jQuery.data returns the same data object when called multiple times" );
- var flash = document.createElement("object");
- flash.setAttribute("classid", "clsid:D27CDB6E-AE6D-11cf-96B8-444553540000");
- ok( jQuery.acceptData( flash ), "flash" );
+ strictEqual( jQuery.hasData(elem), false, "jQuery.hasData agrees no data exists even when an empty data obj exists" );
- var applet = document.createElement("object");
- applet.setAttribute("classid", "clsid:8AD9C840-044E-11D1-B3E9-00805F499D93");
- ok( !jQuery.acceptData( applet ), "applet" );
-});
+ dataObj.foo = "bar";
+ equals( jQuery.data(elem, "foo"), "bar", "Data is readable by jQuery.data when set directly on a returned data object" );
-test("jQuery.data", function() {
- expect(15);
- var div = document.createElement("div");
+ strictEqual( jQuery.hasData(elem), true, "jQuery.hasData agrees data exists when data exists" );
- ok( jQuery.data(div, "test") === undefined, "Check for no data exists" );
+ jQuery.data(elem, "foo", "baz");
+ equals( jQuery.data(elem, "foo"), "baz", "Data can be changed by jQuery.data" );
+ equals( dataObj.foo, "baz", "Changes made through jQuery.data propagate to referenced data object" );
- jQuery.data(div, "test", "success");
- equals( jQuery.data(div, "test"), "success", "Check for added data" );
+ jQuery.data(elem, "foo", undefined);
+ equals( jQuery.data(elem, "foo"), "baz", "Data is not unset by passing undefined to jQuery.data" );
- ok( jQuery.data(div, "notexist") === undefined, "Check for no data exists" );
+ jQuery.data(elem, "foo", null);
+ strictEqual( jQuery.data(elem, "foo"), null, "Setting null using jQuery.data works OK" );
- var data = jQuery.data(div);
- same( data, { "test": "success" }, "Return complete data set" );
+ jQuery.data(elem, "foo", "foo1");
- jQuery.data(div, "test", "overwritten");
- equals( jQuery.data(div, "test"), "overwritten", "Check for overwritten data" );
+ jQuery.data(elem, { "bar" : "baz", "boom" : "bloz" });
+ strictEqual( jQuery.data(elem, "foo"), "foo1", "Passing an object extends the data object instead of replacing it" );
+ equals( jQuery.data(elem, "boom"), "bloz", "Extending the data object works" );
- jQuery.data(div, "test", undefined);
- equals( jQuery.data(div, "test"), "overwritten", "Check that data wasn't removed");
+ jQuery._data(elem, "foo", "foo2");
+ equals( jQuery._data(elem, "foo"), "foo2", "Setting internal data works" );
+ equals( jQuery.data(elem, "foo"), "foo1", "Setting internal data does not override user data" );
- jQuery.data(div, "test", null);
- ok( jQuery.data(div, "test") === null, "Check for null data");
+ var internalDataObj = jQuery.data(elem, jQuery.expando);
+ strictEqual( jQuery._data(elem), internalDataObj, "Internal data object is accessible via jQuery.expando property" );
+ notStrictEqual( dataObj, internalDataObj, "Internal data object is not the same as user data object" );
- jQuery.data(div, "test3", "orig");
- jQuery.data(div, { "test": "in", "test2": "in2" });
- equals( jQuery.data(div, "test"), "in", "Verify setting an object in data" );
- equals( jQuery.data(div, "test2"), "in2", "Verify setting an object in data" );
- equals( jQuery.data(div, "test3"), "orig", "Verify original not overwritten" );
+ strictEqual( elem.boom, undefined, "Data is never stored directly on the object" );
- var obj = {};
- jQuery.data( obj, "prop", true );
+ jQuery.removeData(elem, "foo");
+ strictEqual( jQuery.data(elem, "foo"), undefined, "jQuery.removeData removes single properties" );
- ok( obj.prop, "Data is being stored on the object" );
- equals( jQuery.data( obj, "prop" ), true, "Make sure the right value is retrieved" );
+ jQuery.removeData(elem);
+ strictEqual( jQuery.data(elem, jQuery.expando), internalDataObj, "jQuery.removeData does not remove internal data if it exists" );
- jQuery.data( window, "BAD", true );
- ok( !window[ jQuery.expando ], "Make sure there is no expando on the window object." );
- ok( !window.BAD, "And make sure that the property wasn't set directly on the window." );
- ok( jQuery.data( window, "BAD" ), "Make sure that the value was set." );
-});
+ jQuery.removeData(elem, undefined, true);
-test("jQuery.hasData", function() {
- expect(6);
+ strictEqual( jQuery.data(elem, jQuery.expando), undefined, "jQuery.removeData on internal data works" );
+ strictEqual( jQuery.hasData(elem), false, "jQuery.hasData agrees all data has been removed from object" );
+
+ jQuery._data(elem, "foo", "foo2");
+ strictEqual( jQuery.hasData(elem), true, "jQuery.hasData shows data exists even if it is only internal data" );
+
+ jQuery.data(elem, "foo", "foo1");
+ equals( jQuery._data(elem, "foo"), "foo2", "Setting user data does not override internal data" );
+
+ jQuery.removeData(elem, undefined, true);
+ equals( jQuery.data(elem, "foo"), "foo1", "jQuery.removeData for internal data does not remove user data" );
+
+ if (elem.nodeType) {
+ var oldCacheLength = getCacheLength();
+ jQuery.removeData(elem, "foo");
+
+ equals( getCacheLength(), oldCacheLength - 1, "Removing the last item in the data object destroys it" );
+ }
+ else {
+ jQuery.removeData(elem, "foo");
+ var expected, actual;
- function testData(obj) {
- equals( jQuery.hasData(obj), false, "No data exists" );
- jQuery.data( obj, "foo", "bar" );
- equals( jQuery.hasData(obj), true, "Data exists" );
- jQuery.removeData( obj, "foo" );
- equals( jQuery.hasData(obj), false, "Data was removed" );
+ if (jQuery.support.deleteExpando) {
+ expected = false;
+ actual = jQuery.expando in elem;
+ }
+ else {
+ expected = null;
+ actual = elem[ jQuery.expando ];
+ }
+
+ equals( actual, expected, "Removing the last item in the data object destroys it" );
}
- testData(document.createElement('div'));
- testData({});
+ jQuery.data(elem, "foo", "foo1");
+ jQuery._data(elem, "foo", "foo2");
+
+ equals( jQuery.data(elem, "foo"), "foo1", "(sanity check) Ensure data is set in user data object" );
+ equals( jQuery._data(elem, "foo"), "foo2", "(sanity check) Ensure data is set in internal data object" );
+
+ jQuery.removeData(elem, "foo", true);
+
+ strictEqual( jQuery.data(elem, jQuery.expando), undefined, "Removing the last item in internal data destroys the internal data object" );
+
+ jQuery._data(elem, "foo", "foo2");
+ equals( jQuery._data(elem, "foo"), "foo2", "(sanity check) Ensure data is set in internal data object" );
+
+ jQuery.removeData(elem, "foo");
+ equals( jQuery._data(elem, "foo"), "foo2", "(sanity check) jQuery.removeData for user data does not remove internal data" );
+
+ if (elem.nodeType) {
+ oldCacheLength = getCacheLength();
+ jQuery.removeData(elem, "foo", true);
+ equals( getCacheLength(), oldCacheLength - 1, "Removing the last item in the internal data object also destroys the user data object when it is empty" );
+ }
+ else {
+ jQuery.removeData(elem, "foo", true);
+
+ if (jQuery.support.deleteExpando) {
+ expected = false;
+ actual = jQuery.expando in elem;
+ }
+ else {
+ expected = null;
+ actual = elem[ jQuery.expando ];
+ }
+
+ equals( actual, expected, "Removing the last item in the internal data object also destroys the user data object when it is empty" );
+ }
+}
+
+test("jQuery.data", function() {
+ expect(128);
+
+ var div = document.createElement("div");
+
+ dataTests(div);
+ dataTests({});
+
+ // remove bound handlers from window object to stop potential false positives caused by fix for #5280 in
+ // transports/xhr.js
+ jQuery(window).unbind("unload");
+
+ dataTests(window);
+ dataTests(document);
+
+ // clean up unattached element
+ jQuery(div).remove();
+});
+
+test("jQuery.acceptData", function() {
+ expect(7);
+
+ ok( jQuery.acceptData( document ), "document" );
+ ok( jQuery.acceptData( document.documentElement ), "documentElement" );
+ ok( jQuery.acceptData( {} ), "object" );
+ ok( !jQuery.acceptData( document.createElement("embed") ), "embed" );
+ ok( !jQuery.acceptData( document.createElement("applet") ), "applet" );
+
+ var flash = document.createElement("object");
+ flash.setAttribute("classid", "clsid:D27CDB6E-AE6D-11cf-96B8-444553540000");
+ ok( jQuery.acceptData( flash ), "flash" );
+
+ var applet = document.createElement("object");
+ applet.setAttribute("classid", "clsid:8AD9C840-044E-11D1-B3E9-00805F499D93");
+ ok( !jQuery.acceptData( applet ), "applet" );
});
test(".data()", function() {
var div = jQuery("#foo");
strictEqual( div.data("foo"), undefined, "Make sure that missing result is undefined" );
-
div.data("test", "success");
same( div.data(), {test: "success"}, "data() get the entire data object" );
strictEqual( div.data("foo"), undefined, "Make sure that missing result is still undefined" );
equals( nodiv.data(), null, "data() on empty set returns null" );
var obj = { foo: "bar" };
- equals( jQuery(obj).data(), obj, "Retrieve data object from a wrapped JS object (#7524)" );
+ deepEqual( jQuery(obj).data(), {}, "Retrieve data object from a wrapped JS object (#7524)" );
})
test(".data(String) and .data(String, Object)", function() {
equals( $elem.data('null',null).data('null'), null, "null's are preserved");
equals( $elem.data('emptyString','').data('emptyString'), '', "Empty strings are preserved");
equals( $elem.data('false',false).data('false'), false, "false's are preserved");
- equals( $elem.data('exists'), true, "Existing data is returned" );
+ equals( $elem.data('exists'), undefined, "Existing data is not returned" );
// Clean up
$elem.removeData();
- ok( jQuery.isEmptyObject( $elem[0] ), "removeData clears the object" );
+ deepEqual( $elem[0], {exists:true}, "removeData does not clear the object" );
+
+ // manually clean up detached elements
+ parent.remove();
});
test("data-* attributes", function() {
div.data("attr", "internal").attr("data-attr", "external");
equals( div.data("attr"), "internal", "Check for .data('attr') precedence (internal > external data-* attribute)" );
+ div.remove();
+
child.appendTo('#main');
equals( child.data("myobj"), "old data", "Value accessed from data-* attribute");
var obj = child.data(), obj2 = dummy.data(), check = [ "myobj", "ignored", "other" ], num = 0, num2 = 0;
+ dummy.remove();
+
for ( var i = 0, l = check.length; i < l; i++ ) {
ok( obj[ check[i] ], "Make sure data- property exists when calling data-." );
ok( obj2[ check[i] ], "Make sure data- property exists when calling data-." );
var obj = {test:"unset"},
jqobj = jQuery(obj);
+ jqobj.data("test", "unset");
jqobj.data({ "test": "in", "test2": "in2" });
- equals( obj.test, "in", "Verify setting an object on an object extends the object" );
- equals( obj.test2, "in2", "Verify setting an object on an object extends the object" );
+ equals( jQuery.data(obj).test, "in", "Verify setting an object on an object extends the data object" );
+ equals( obj.test2, undefined, "Verify setting an object on an object does not extend the object" );
+
+ // manually clean up detached elements
+ div.remove();
});
test("jQuery.removeData", function() {
- expect(7);
+ expect(6);
var div = jQuery("#foo")[0];
jQuery.data(div, "test", "testing");
jQuery.removeData(div, "test");
var obj = {};
jQuery.data(obj, "test", "testing");
- equals( obj.test, "testing", "verify data on plain object");
+ equals( jQuery(obj).data("test"), "testing", "verify data on plain object");
jQuery.removeData(obj, "test");
equals( jQuery.data(obj, "test"), undefined, "Check removal of data on plain object" );
- equals( obj.test, undefined, "Check removal of data directly from plain object" );
jQuery.data( window, "BAD", true );
jQuery.removeData( window, "BAD" );
div.removeData("test.foo");
equals( div.data("test.foo"), undefined, "Make sure data is intact" );
-});
+});
\ No newline at end of file
-module("dimensions");
+module("dimensions", { teardown: moduleTeardown });
function pass( val ) {
return val;
var blah = jQuery("blah");
equals( blah.width( val(10) ), blah, "Make sure that setting a width on an empty set returns the set." );
equals( blah.width(), null, "Make sure 'null' is returned on an empty set");
+
+ jQuery.removeData($div[0], 'olddisplay', true);
}
test("width()", function() {
var blah = jQuery("blah");
equals( blah.height( val(10) ), blah, "Make sure that setting a height on an empty set returns the set." );
equals( blah.height(), null, "Make sure 'null' is returned on an empty set");
+
+ jQuery.removeData($div[0], 'olddisplay', true);
}
test("height()", function() {
// Temporarily require 0 for backwards compat - should be auto
equals( div.innerWidth(), 0, "Make sure that disconnected nodes are handled." );
+
+ div.remove();
+ jQuery.removeData($div[0], 'olddisplay', true);
});
test("innerHeight()", function() {
// Temporarily require 0 for backwards compat - should be auto
equals( div.innerHeight(), 0, "Make sure that disconnected nodes are handled." );
+
+ div.remove();
+ jQuery.removeData($div[0], 'olddisplay', true);
});
test("outerWidth()", function() {
// Temporarily require 0 for backwards compat - should be auto
equals( div.outerWidth(), 0, "Make sure that disconnected nodes are handled." );
+
+ div.remove();
+ jQuery.removeData($div[0], 'olddisplay', true);
});
test("outerHeight()", function() {
// Temporarily require 0 for backwards compat - should be auto
equals( div.outerHeight(), 0, "Make sure that disconnected nodes are handled." );
+
+ div.remove();
+ jQuery.removeData($div[0], 'olddisplay', true);
});
-module("effects");
+module("effects", { teardown: moduleTeardown });
test("sanity check", function() {
expect(1);
equals( hiddendiv.css("display"), "block", "Make sure a pre-hidden div is visible." );
- var div = jQuery("<div>").hide().appendTo("body").show();
+ var div = jQuery("<div>").hide().appendTo("#main").show();
equal( div.css("display"), "block", "Make sure pre-hidden divs show" );
$elem.hide(0, function(){
ok(true, "Hide callback with no duration");
});
+
+ // manually clean up detached elements
+ $elem.remove();
});
test("animate hyphenated properties", function(){
expect(1);
stop();
- jQuery("#nothiddendiv")
+ jQuery("#foo")
.css("font-size", 10)
.animate({"font-size": 20}, 200, function(){
equals( this.style.fontSize, "20px", "The font-size property was animated." );
expect(3);
stop();
- var $foo = jQuery("#nothiddendiv");
+ var $foo = jQuery("#foo");
var w = 0;
$foo.hide().width(200).width();
nw = $foo.width();
notEqual( nw, w, "Stop didn't reset the animation " + nw + "px " + w + "px");
setTimeout(function(){
+ $foo.removeData();
+ $foo.removeData(undefined, true);
equals( nw, $foo.width(), "The animation didn't continue" );
start();
}, 100);
expect(3);
stop();
- var $foo = jQuery("#nothiddendivchild");
+ var $foo = jQuery("#foo");
var w = 0;
$foo.hide().width(200).width();
expect(4);
stop();
- var $foo = jQuery("#nothiddendiv");
+ var $foo = jQuery("#foo");
var w = 0;
$foo.hide().width(200).width();
expect(1);
stop();
- var $foo = jQuery("#nothiddendivchild");
+ var $foo = jQuery("#foo");
var w = 0;
$foo.hide().width(200).width();
test("toggle()", function() {
expect(6);
- var x = jQuery("#nothiddendiv");
+ var x = jQuery("#foo");
ok( x.is(":visible"), "is visible" );
x.toggle();
ok( x.is(":hidden"), "is hidden" );
}
}
+ // manually remove generated element
+ jQuery(this).remove();
+
start();
});
});
var cur = self.style[ c ] || jQuery.css(self, c);
equals( cur, v, "Make sure that " + c + " is reset (Old: " + v + " Cur: " + cur + ")");
});
+
+ // manually clean data on modified element
+ jQuery.removeData(this, 'olddisplay', true);
+
start();
}
jQuery("<h4></h4>")
.text( text )
.appendTo("#fx-tests")
- .click(function(){
- jQuery(this).next().toggle();
- })
.after( elem );
return elem;
var div = jQuery("<div style='display:none'></div>").appendTo("#main");
equals( div.css("display"), "none", "Element is hidden by default" );
div.hide();
- ok( !div.data("olddisplay"), "olddisplay is undefined after hiding an already-hidden element" );
+ ok( !jQuery._data(div, "olddisplay"), "olddisplay is undefined after hiding an already-hidden element" );
div.show();
equals( div.css("display"), "block", "Show a double-hidden element" );
var div = jQuery("<div style='display:none'></div>").appendTo("#main");
equals( div.css("display"), "none", "Element is hidden by default" );
div.hide(1, function () {
- ok( !div.data("olddisplay"), "olddisplay is undefined after hiding an already-hidden element" );
+ ok( !jQuery._data(div, "olddisplay"), "olddisplay is undefined after hiding an already-hidden element" );
div.show(1, function () {
equals( div.css("display"), "block", "Show a double-hidden element" );
start();
-module("event");
+module("event", { teardown: moduleTeardown });
test("null or undefined handler", function() {
expect(2);
};
jQuery("#firstp").bind("click", {foo: "bar"}, handler).click().unbind("click", handler);
- ok( !jQuery.data(jQuery("#firstp")[0], "events"), "Event handler unbound when using data." );
+ ok( !jQuery._data(jQuery("#firstp")[0], "events"), "Event handler unbound when using data." );
});
test("click(), with data", function() {
};
jQuery("#firstp").click({foo: "bar"}, handler).click().unbind("click", handler);
- ok( !jQuery.data(jQuery("#firstp")[0], "events"), "Event handler unbound when using data." );
+ ok( !jQuery._data(jQuery("#firstp")[0], "events"), "Event handler unbound when using data." );
});
test("bind(), with data, trigger with data", function() {
cur = "focusin";
div.trigger("focusin.a");
+ // manually clean up detached elements
+ div.remove();
+
div = jQuery("<div/>").bind("click mouseover", obj, function(e) {
equals( e.type, cur, "Verify right multi event was fired." );
equals( e.data, obj, "Make sure the data came in correctly." );
cur = "mouseover";
div.trigger("mouseover");
+ // manually clean up detached elements
+ div.remove();
+
div = jQuery("<div/>").bind("focusin.a focusout.b", function(e) {
equals( e.type, cur, "Verify right multi event was fired." );
});
cur = "focusout";
div.trigger("focusout.b");
+
+ // manually clean up detached elements
+ div.remove();
});
test("bind(), namespace with special add", function() {
.bind("click", jQuery.proxy(handler1, thisObject)).click().unbind("click", handler1)
.bind("click", data, jQuery.proxy(handler2, thisObject)).click().unbind("click", handler2);
- ok( !jQuery.data(jQuery("#firstp")[0], "events"), "Event handler unbound when using different this object and data." );
+ ok( !jQuery._data(jQuery("#firstp")[0], "events"), "Event handler unbound when using different this object and data." );
});
test("bind(name, false), unbind(name, false)", function() {
jQuery("#ap").unbind("click", false);
jQuery("#ap").trigger("click");
equals( main, 1, "Verify that the trigger happened correctly." );
+
+ // manually clean up events from elements outside the fixture
+ jQuery("#main").unbind("click");
});
test("bind()/trigger()/unbind() on plain object", function() {
}
});
- var events = jQuery(obj).data("__events__");
+ var events = jQuery._data(obj, "events");
ok( events, "Object has events bound." );
equals( obj.events, undefined, "Events object on plain objects is not events" );
equals( typeof events, "function", "'events' expando is a function on plain objects." );
// Make sure it doesn't complain when no events are found
jQuery(obj).unbind("test");
- equals( obj.__events__, undefined, "Make sure events object is removed" );
+ equals( obj && obj[ jQuery.expando ] &&
+ obj[ jQuery.expando ][ jQuery.expando ] &&
+ obj[ jQuery.expando ][ jQuery.expando ].events, undefined, "Make sure events object is removed" );
});
test("unbind(type)", function() {
test("trigger() shortcuts", function() {
expect(6);
- jQuery('<li><a href="#">Change location</a></li>').prependTo('#firstUL').find('a').bind('click', function() {
+
+ var elem = jQuery('<li><a href="#">Change location</a></li>').prependTo('#firstUL');
+ elem.find('a').bind('click', function() {
var close = jQuery('spanx', this); // same with jQuery(this).find('span');
equals( close.length, 0, "Context element does not exist, length must be zero" );
ok( !close[0], "Context element does not exist, direct access to element must return undefined" );
return false;
}).click();
+ // manually clean up detached elements
+ elem.remove();
+
jQuery("#check1").click(function() {
ok( true, "click event handler for checkbox gets fired twice, see #815" );
}).click();
jQuery('#simon1').click();
equals( clickCounter, 1, "Check that click, triggers onclick event handler on an a tag also" );
- jQuery('<img />').load(function(){
+ elem = jQuery('<img />').load(function(){
ok( true, "Trigger the load event, using the shortcut .load() (#2819)");
}).load();
+
+ // manually clean up detached elements
+ elem.remove();
});
test("trigger() bubbling", function() {
equals( body, 2, "ap bubble" );
equals( main, 1, "ap bubble" );
equals( ap, 1, "ap bubble" );
+
+ // manually clean up events from elements outside the fixture
+ jQuery(document).unbind("click");
+ jQuery("html, body, #main").unbind("click");
});
test("trigger(type, [data], [fn])", function() {
pass = true;
try {
- jQuery('table:first').bind('test:test', function(){}).trigger('test:test');
+ jQuery('#main table:first').bind('test:test', function(){}).trigger('test:test');
} catch (e) {
pass = false;
}
equals( turn, 2, "Trying toggle with 3 functions, attempt 5 yields 2");
$div.unbind('click',fns[0]);
- var data = jQuery.data( $div[0], 'events' );
+ var data = jQuery._data( $div[0], 'events' );
ok( !data, "Unbinding one function from toggle unbinds them all");
+ // manually clean up detached elements
+ $div.remove();
+
// Test Multi-Toggles
var a = [], b = [];
$div = jQuery("<div/>");
$div.click();
same( a, [1,2,1], "Check that a click worked with a second toggle, second click." );
same( b, [1,2], "Check that a click worked with a second toggle, second click." );
+
+ // manually clean up detached elements
+ $div.remove();
});
test(".live()/.die()", function() {
equals( clicked, 2, "live with a context" );
// Make sure the event is actually stored on the context
- ok( jQuery.data(container, "events").live, "live with a context" );
+ ok( jQuery._data(container, "events").live, "live with a context" );
// Test unbinding with a different context
jQuery("#foo", container).die("click");
div.trigger("submit");
equals( count, 2, "Make sure both the click and submit were triggered." );
+
+ // manually clean up events from elements outside the fixture
+ div.die();
});
test("live with namespaces", function(){
equals( clicked, 2, "delegate with a context" );
// Make sure the event is actually stored on the context
- ok( jQuery.data(container, "events").live, "delegate with a context" );
+ ok( jQuery._data(container, "events").live, "delegate with a context" );
// Test unbinding with a different context
jQuery("#main").undelegate("#foo", "click");
ok( true, "Resize event fired." );
}).resize().unbind("resize");
- ok( !jQuery(window).data("__events__"), "Make sure all the events are gone." );
+ ok( !jQuery._data(window, "__events__"), "Make sure all the events are gone." );
});
test("focusin bubbles", function() {
-module("manipulation");
+module("manipulation", { teardown: moduleTeardown });
// Ensure that an extended Array prototype doesn't break jQuery
Array.prototype.arrayProtoFn = function(arg) { throw("arrayProtoFn should not be called"); };
// Wrap an element with a jQuery set and event
result = jQuery("<div></div>").click(function(){
ok(true, "Event triggered.");
+
+ // Remove handlers on detached elements
+ result.unbind();
+ jQuery(this).unbind();
});
j = jQuery("<span/>").wrap(result);
equals( j[0].parentNode.nodeName.toLowerCase(), "div", "Wrapping works." );
j.parent().trigger("click");
+
+ // clean up attached elements
+ QUnit.reset();
}
test("wrap(String|Element)", function() {
ok(true, "Event exists on original after being unbound on clone");
jQuery(this).unbind('click');
});
- element.clone(true).unbind('click')[0].fireEvent('onclick');
+ var clone = element.clone(true).unbind('click');
+ clone[0].fireEvent('onclick');
element[0].fireEvent('onclick');
+
+ // manually clean up detached elements
+ clone.remove();
}
element = jQuery("<a class='test6997'></a>").click(function () {
ok( true, "Bound event still exists." );
});
- div = div.clone(true).clone(true);
+ clone = div.clone(true);
+
+ // manually clean up detached elements
+ div.remove();
+
+ div = clone.clone(true);
+
+ // manually clean up detached elements
+ clone.remove();
+
equals( div.length, 1, "One element cloned" );
equals( div[0].nodeName.toUpperCase(), "DIV", "DIV element cloned" );
div.trigger("click");
+ // manually clean up detached elements
+ div.remove();
+
div = jQuery("<div/>").append([ document.createElement("table"), document.createElement("table") ]);
div.find("table").click(function(){
ok( true, "Bound event still exists." );
});
- div = div.clone(true);
- equals( div.length, 1, "One element cloned" );
- equals( div[0].nodeName.toUpperCase(), "DIV", "DIV element cloned" );
- div.find("table:last").trigger("click");
+ clone = div.clone(true);
+ equals( clone.length, 1, "One element cloned" );
+ equals( clone[0].nodeName.toUpperCase(), "DIV", "DIV element cloned" );
+ clone.find("table:last").trigger("click");
+
+ // manually clean up detached elements
+ div.remove();
+ clone.remove();
// this is technically an invalid object, but because of the special
// classid instantiation it is the only kind that IE has trouble with,
equals( clone[0].nodeName.toUpperCase(), "DIV", "DIV element cloned" );
div = jQuery("<div/>").data({ a: true });
- var div2 = div.clone(true);
- equals( div2.data("a"), true, "Data cloned." );
- div2.data("a", false);
- equals( div2.data("a"), false, "Ensure cloned element data object was correctly modified" );
+ clone = div.clone(true);
+ equals( clone.data("a"), true, "Data cloned." );
+ clone.data("a", false);
+ equals( clone.data("a"), false, "Ensure cloned element data object was correctly modified" );
equals( div.data("a"), true, "Ensure cloned element data object is copied, not referenced" );
+ // manually clean up detached elements
+ div.remove();
+ clone.remove();
+
var form = document.createElement("form");
form.action = "/test/";
var div = document.createElement("div");
jQuery("#nonnodes").contents()[method]();
equals( jQuery("#nonnodes").contents().length, 0, "Check node,textnode,comment remove works" );
+ // manually clean up detached elements
+ if (method === "detach") {
+ first.remove();
+ }
+
QUnit.reset();
var count = 0;
var first = jQuery("#ap").children(":first");
- var cleanUp = first.click(function() { count++ })[method]().appendTo("body").click();
+ var cleanUp = first.click(function() { count++ })[method]().appendTo("#main").click();
equals( method == "remove" ? 0 : 1, count );
- cleanUp.detach();
+ // manually clean up detached elements
+ cleanUp.remove();
};
test("remove()", function() {
-module("offset");
+module("offset", { teardown: moduleTeardown });
test("disconnected node", function() {
expect(2);
-module("queue");
+module("queue", { teardown: moduleTeardown });
test("queue() with other types",function() {
expect(9);
-module("selector");
+module("selector", { teardown: moduleTeardown });
test("element", function() {
expect(21);
}
test("broken", function() {
- expect(8);
+ expect(19);
+
function broken(name, selector) {
try {
jQuery(selector);
ok( false, name + ": " + selector );
} catch(e){
- ok( typeof e === "string" && e.indexOf("Syntax error") >= 0,
+ ok( typeof e === "string" && e.indexOf("Syntax error") >= 0,
name + ": " + selector );
}
}
broken( "Broken Selector", "<>", [] );
broken( "Broken Selector", "{}", [] );
broken( "Doesn't exist", ":visble", [] );
+ broken( "Nth-child", ":nth-child", [] );
+ broken( "Nth-child", ":nth-child(-)", [] );
+ // Sigh. WebKit thinks this is a real selector in qSA
+ // They've already fixed this and it'll be coming into
+ // current browsers soon.
+ //broken( "Nth-child", ":nth-child(asdf)", [] );
+ broken( "Nth-child", ":nth-child(2n+-0)", [] );
+ broken( "Nth-child", ":nth-child(2+0)", [] );
+ broken( "Nth-child", ":nth-child(- 1n)", [] );
+ broken( "Nth-child", ":nth-child(-1 n)", [] );
+ broken( "First-child", ":first-child(n)", [] );
+ broken( "Last-child", ":last-child(n)", [] );
+ broken( "Only-child", ":only-child(n)", [] );
+
+ // Make sure attribute value quoting works correctly. See: #6093
+ var attrbad = jQuery('<input type="hidden" value="2" name="foo.baz" id="attrbad1"/><input type="hidden" value="2" name="foo[baz]" id="attrbad2"/>').appendTo("body");
+
+ broken( "Attribute not escaped", "input[name=foo.baz]", [] );
+ broken( "Attribute not escaped", "input[name=foo[baz]]", [] );
+
+ attrbad.remove();
});
test("id", function() {
- expect(28);
+ expect(29);
t( "ID Selector", "#body", ["body"] );
t( "ID Selector w/ Element", "body#body", ["body"] );
t( "ID Selector w/ Element", "ul#first", [] );
same( jQuery("body").find("div#form").get(), [], "ID selector within the context of another element" );
+ //#7533
+ equal( jQuery("<div id=\"A'B~C.D[E]\"><p>foo</p></div>").find("p").length, 1, "Find where context root is a node and has an ID with CSS3 meta characters" );
+
t( "Underscore ID", "#types_all", ["types_all"] );
t( "Dash ID", "#fx-queue", ["fx-queue"] );
t( "Child escaped Class", "form > .test\\.foo\\[5\\]bar", ["test.foo[5]bar"] );
var div = document.createElement("div");
- div.innerHTML = "<div class='test e'></div><div class='test'></div>";
+ div.innerHTML = "<div class='test e'></div><div class='test'></div>";
same( jQuery(".e", div).get(), [ div.firstChild ], "Finding a second class." );
div.lastChild.className = "e";
});
test("child and adjacent", function() {
- expect(27);
+ expect(31);
t( "Child", "p > a", ["simon1","google","groups","mark","yahoo","simon"] );
t( "Child", "p> a", ["simon1","google","groups","mark","yahoo","simon"] );
t( "Child", "p >a", ["simon1","google","groups","mark","yahoo","simon"] );
t( "Child w/ Class", "p > a.blog", ["mark","simon"] );
t( "All Children", "code > *", ["anchor1","anchor2"] );
t( "All Grandchildren", "p > * > *", ["anchor1","anchor2"] );
- t( "Adjacent", "#main a + a", ["groups"] );
- t( "Adjacent", "#main a +a", ["groups"] );
- t( "Adjacent", "#main a+ a", ["groups"] );
- t( "Adjacent", "#main a+a", ["groups"] );
+ t( "Adjacent", "a + a", ["groups"] );
+ t( "Adjacent", "a +a", ["groups"] );
+ t( "Adjacent", "a+ a", ["groups"] );
+ t( "Adjacent", "a+a", ["groups"] );
t( "Adjacent", "p + p", ["ap","en","sap"] );
t( "Adjacent", "p#firstp + p", ["ap"] );
t( "Adjacent", "p[lang=en] + p", ["sap"] );
t( "Adjacent", "a.GROUPS + code + a", ["mark"] );
- t( "Comma, Child, and Adjacent", "#main a + a, code > a", ["groups","anchor1","anchor2"] );
+ t( "Comma, Child, and Adjacent", "a + a, code > a", ["groups","anchor1","anchor2"] );
t( "Element Preceded By", "p ~ div", ["foo", "moretests","tabindex-tests", "liveHandlerOrder", "siblingTest"] );
t( "Element Preceded By", "#first ~ div", ["moretests","tabindex-tests", "liveHandlerOrder", "siblingTest"] );
t( "Element Preceded By", "#groups ~ a", ["mark"] );
t( "Element Preceded By", "#length ~ input", ["idTest"] );
t( "Element Preceded By", "#siblingfirst ~ em", ["siblingnext"] );
+ same( jQuery("#siblingfirst").find("~ em").get(), q("siblingnext"), "Element Preceded By with a context." );
+ same( jQuery("#siblingfirst").find("+ em").get(), q("siblingnext"), "Element Directly Preceded By with a context." );
+ var a = jQuery("<div id='foo'></div><p id='bar'></p><p id='bar2'></p>");
+ same( jQuery("~ p", a[0]).get(), [a[1], a[2]], "Detached Element Directly Preceded By with a context." );
+ same( jQuery("+ p", a[0]).get(), [a[1]], "Detached Element Preceded By with a context." );
t( "Verify deep class selector", "div.blah > p > a", [] );
});
test("attributes", function() {
- expect(39);
+ expect(41);
+
t( "Attribute Exists", "a[title]", ["google"] );
t( "Attribute Exists", "*[title]", ["google"] );
t( "Attribute Exists", "[title]", ["google"] );
t("Select options via :selected", "#select3 option:selected", ["option3b", "option3c"] );
t( "Grouped Form Elements", "input[name='foo[bar]']", ["hidden2"] );
+
+ // Make sure attribute value quoting works correctly. See: #6093
+ var attrbad = jQuery('<input type="hidden" value="2" name="foo.baz" id="attrbad1"/><input type="hidden" value="2" name="foo[baz]" id="attrbad2"/>').appendTo("body");
+
+ t("Find escaped attribute value", "input[name=foo\\.baz]", ["attrbad1"]);
+ t("Find escaped attribute value", "input[name=foo\\[baz\\]]", ["attrbad2"]);
+
+ attrbad.remove();
});
test("pseudo - child", function() {
- expect(31);
+ expect(38);
t( "First Child", "p:first-child", ["firstp","sndp"] );
t( "Last Child", "p:last-child", ["sap"] );
t( "Only Child", "#main a:only-child", ["simon1","anchor1","yahoo","anchor2","liveLink1","liveLink2"] );
t( "First Child", "p:first-child", ["firstp","sndp"] );
t( "Nth Child", "p:nth-child(1)", ["firstp","sndp"] );
+ t( "Nth Child With Whitespace", "p:nth-child( 1 )", ["firstp","sndp"] );
t( "Not Nth Child", "p:not(:nth-child(1))", ["ap","en","sap","first"] );
// Verify that the child position isn't being cached improperly
t( "Nth-child", "#main form#form > *:nth-child(2)", ["text1"] );
t( "Nth-child", "#main form#form > :nth-child(2)", ["text1"] );
+ t( "Nth-child", "#form select:first option:nth-child(-1)", [] );
t( "Nth-child", "#form select:first option:nth-child(3)", ["option1c"] );
t( "Nth-child", "#form select:first option:nth-child(0n+3)", ["option1c"] );
t( "Nth-child", "#form select:first option:nth-child(1n+0)", ["option1a", "option1b", "option1c", "option1d"] );
t( "Nth-child", "#form select:first option:nth-child(1n)", ["option1a", "option1b", "option1c", "option1d"] );
t( "Nth-child", "#form select:first option:nth-child(n)", ["option1a", "option1b", "option1c", "option1d"] );
+ t( "Nth-child", "#form select:first option:nth-child(+n)", ["option1a", "option1b", "option1c", "option1d"] );
t( "Nth-child", "#form select:first option:nth-child(even)", ["option1b", "option1d"] );
t( "Nth-child", "#form select:first option:nth-child(odd)", ["option1a", "option1c"] );
t( "Nth-child", "#form select:first option:nth-child(2n)", ["option1b", "option1d"] );
t( "Nth-child", "#form select:first option:nth-child(2n+1)", ["option1a", "option1c"] );
+ t( "Nth-child", "#form select:first option:nth-child(2n + 1)", ["option1a", "option1c"] );
+ t( "Nth-child", "#form select:first option:nth-child(+2n + 1)", ["option1a", "option1c"] );
t( "Nth-child", "#form select:first option:nth-child(3n)", ["option1c"] );
t( "Nth-child", "#form select:first option:nth-child(3n+1)", ["option1a", "option1d"] );
t( "Nth-child", "#form select:first option:nth-child(3n+2)", ["option1b"] );
t( "Nth-child", "#form select:first option:nth-child(3n-2)", ["option1a", "option1d"] );
t( "Nth-child", "#form select:first option:nth-child(3n-3)", ["option1c"] );
t( "Nth-child", "#form select:first option:nth-child(3n+0)", ["option1c"] );
+ t( "Nth-child", "#form select:first option:nth-child(-1n+3)", ["option1a", "option1b", "option1c"] );
t( "Nth-child", "#form select:first option:nth-child(-n+3)", ["option1a", "option1b", "option1c"] );
+ t( "Nth-child", "#form select:first option:nth-child(-1n + 3)", ["option1a", "option1b", "option1c"] );
});
test("pseudo - misc", function() {
-module("traversing");
+module("traversing", { teardown: moduleTeardown });
test("find(String)", function() {
expect(5);
git.asbjorn.biz / jquery.git / commitdiff