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  • 12 files changed
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2 coffee-script.gemspec
@@ -1,6 +1,6 @@
Gem::Specification.new do |s|
s.name = 'coffee-script'
- s.version = '0.2.0' # Keep version in sync with coffee-script.rb
+ s.version = '0.2.1' # Keep version in sync with coffee-script.rb
s.date = '2010-1-5'
s.homepage = "http://jashkenas.github.com/coffee-script/"
View
4 documentation/coffee/arguments.coffee
@@ -0,0 +1,4 @@
+backwards: =>
+ alert(arguments.reverse())
+
+backwards("stairway", "to", "heaven")
View
29 documentation/index.html.erb
@@ -66,7 +66,7 @@
<p>
<b>Latest Version:</b>
- <a href="http://gemcutter.org/gems/coffee-script">0.2.0</a>
+ <a href="http://gemcutter.org/gems/coffee-script">0.2.1</a>
</p>
<h2>Table of Contents</h2>
@@ -83,6 +83,7 @@
<a href="#existence">The Existence Operator</a><br />
<a href="#aliases">Aliases</a><br />
<a href="#splats">Splats</a><br />
+ <a href="#arguments">Arguments are Arrays</a><br />
<a href="#while">While Loops</a><br />
<a href="#comprehensions">Comprehensions (Arrays, Objects, and Ranges)</a><br />
<a href="#slice_splice">Array Slicing and Splicing with Ranges</a><br />
@@ -109,7 +110,7 @@
<a href="documentation/underscore.html">Underscore.coffee</a>, a port
of <a href="http://documentcloud.github.com/underscore/">Underscore.js</a>
to CoffeeScript, which, when compiled, can pass the complete Underscore test suite.
- Or, clone the source and take a look in the
+ Or, clone the source and take a look in the
<a href="http://github.com/jashkenas/coffee-script/tree/master/examples/">examples</a> folder.
</p>
@@ -372,6 +373,15 @@ coffee --print app/scripts/*.coffee > concatenation.js</pre>
</p>
<%= code_for('splats', true) %>
+ <p id="arguments">
+ <b class="header">Arguments are Arrays</b>
+ If you reference the <b>arguments object</b> directly, it will be converted
+ into a real Array, making all of the
+ <a href="https://developer.mozilla.org/En/Core_JavaScript_1.5_Reference/Objects/Array">Array methods</a>
+ available.
+ </p>
+ <%= code_for('arguments', true) %>
+
<p id="while">
<b class="header">While Loops</b>
The only low-level loop that CoffeeScript provides is the while loop.
@@ -472,8 +482,8 @@ coffee --print app/scripts/*.coffee > concatenation.js</pre>
<p id="blocks">
<b class="header">Blocks</b>
Many common looping functions (in Prototype, jQuery, and Underscore,
- for example) take a single function as their final argument. To make
- final functions easier to pass, CoffeeScript includes block syntax,
+ for example) take a single function as their final argument. To make
+ final functions easier to pass, CoffeeScript includes block syntax,
so you don't have to close the parentheses on the other side.
</p>
<%= code_for('blocks') %>
@@ -524,7 +534,7 @@ coffee --print app/scripts/*.coffee > concatenation.js</pre>
</li>
<li>
<a href="http://github.com/jnicklas/bistro_car">BistroCar</a><br />
- A Rails plugin by
+ A Rails plugin by
<a href="http://github.com/jnicklas">Jonas Nicklas</a>
that includes CoffeeScript helpers,
bundling and minification.
@@ -541,7 +551,7 @@ coffee --print app/scripts/*.coffee > concatenation.js</pre>
<ul>
<li>
A clean, safe syntax for manipulating the prototype chain, and performing
- inheritance. <a href="#inheritance"><b>extends</b> and <b>super</b></a> are the start of this, but
+ inheritance. <a href="#inheritance"><b>extends</b> and <b>super</b></a> are the start of this, but
aren't a complete answer.
</li>
<li>
@@ -570,11 +580,16 @@ coffee --print app/scripts/*.coffee > concatenation.js</pre>
<h2 id="change_log">Change Log</h2>
<p>
+ <b class="header" style="margin-top: 20px;">0.2.1</b>
+ Arguments objects are now converted into real arrays when referenced.
+ </p>
+
+ <p>
<b class="header" style="margin-top: 20px;">0.2.0</b>
Major release. Significant whitespace. Better statement-to-expression
conversion. Splats. Splice literals. Object comprehensions. Blocks.
The existence operator. Many thanks to all the folks who posted issues,
- with special thanks to
+ with special thanks to
<a href="http://github.com/kamatsu">Liam O'Connor-Davis</a> for whitespace
and expression help.
</p>
View
7 documentation/js/arguments.js
@@ -0,0 +1,7 @@
+(function(){
+ var backwards;
+ backwards = function backwards() {
+ return alert(Array.prototype.slice.call(arguments, 0).reverse());
+ };
+ backwards("stairway", "to", "heaven");
+})();
View
43 index.html
@@ -39,7 +39,7 @@
<p>
<b>Latest Version:</b>
- <a href="http://gemcutter.org/gems/coffee-script">0.2.0</a>
+ <a href="http://gemcutter.org/gems/coffee-script">0.2.1</a>
</p>
<h2>Table of Contents</h2>
@@ -56,6 +56,7 @@
<a href="#existence">The Existence Operator</a><br />
<a href="#aliases">Aliases</a><br />
<a href="#splats">Splats</a><br />
+ <a href="#arguments">Arguments are Arrays</a><br />
<a href="#while">While Loops</a><br />
<a href="#comprehensions">Comprehensions (Arrays, Objects, and Ranges)</a><br />
<a href="#slice_splice">Array Slicing and Splicing with Ranges</a><br />
@@ -201,7 +202,7 @@ <h2 id="overview">Mini Overview</h2>
<a href="documentation/underscore.html">Underscore.coffee</a>, a port
of <a href="http://documentcloud.github.com/underscore/">Underscore.js</a>
to CoffeeScript, which, when compiled, can pass the complete Underscore test suite.
- Or, clone the source and take a look in the
+ Or, clone the source and take a look in the
<a href="http://github.com/jashkenas/coffee-script/tree/master/examples/">examples</a> folder.
</p>
@@ -633,6 +634,29 @@ <h2 id="installation">Installation and Usage</h2>
alert("The Field: " + the_field);
;'>run</button><br class='clear' /></div>
+ <p id="arguments">
+ <b class="header">Arguments are Arrays</b>
+ If you reference the <b>arguments object</b> directly, it will be converted
+ into a real Array, making all of the
+ <a href="https://developer.mozilla.org/En/Core_JavaScript_1.5_Reference/Objects/Array">Array methods</a>
+ available.
+ </p>
+ <div class='code'><pre class="idle"><span class="FunctionName">backwards</span><span class="Keyword">:</span> <span class="Storage">=&gt;</span>
+ alert(arguments.reverse())
+
+backwards(<span class="String"><span class="String">&quot;</span>stairway<span class="String">&quot;</span></span>, <span class="String"><span class="String">&quot;</span>to<span class="String">&quot;</span></span>, <span class="String"><span class="String">&quot;</span>heaven<span class="String">&quot;</span></span>)
+</pre><pre class="idle"><span class="Storage">var</span> backwards;
+backwards <span class="Keyword">=</span> <span class="Storage">function</span> <span class="FunctionName">backwards</span>() {
+ <span class="Keyword">return</span> <span class="LibraryFunction">alert</span>(<span class="LibraryClassType">Array</span>.<span class="LibraryConstant">prototype</span>.slice.<span class="LibraryFunction">call</span>(arguments, <span class="Number">0</span>).<span class="LibraryFunction">reverse</span>());
+};
+backwards(<span class="String"><span class="String">&quot;</span>stairway<span class="String">&quot;</span></span>, <span class="String"><span class="String">&quot;</span>to<span class="String">&quot;</span></span>, <span class="String"><span class="String">&quot;</span>heaven<span class="String">&quot;</span></span>);
+</pre><button onclick='javascript: var backwards;
+backwards = function backwards() {
+ return alert(Array.prototype.slice.call(arguments, 0).reverse());
+};
+backwards("stairway", "to", "heaven");
+;'>run</button><br class='clear' /></div>
+
<p id="while">
<b class="header">While Loops</b>
The only low-level loop that CoffeeScript provides is the while loop.
@@ -1030,8 +1054,8 @@ <h2 id="installation">Installation and Usage</h2>
<p id="blocks">
<b class="header">Blocks</b>
Many common looping functions (in Prototype, jQuery, and Underscore,
- for example) take a single function as their final argument. To make
- final functions easier to pass, CoffeeScript includes block syntax,
+ for example) take a single function as their final argument. To make
+ final functions easier to pass, CoffeeScript includes block syntax,
so you don't have to close the parentheses on the other side.
</p>
<div class='code'><pre class="idle"><span class="Keyword">$</span>(<span class="String"><span class="String">'</span>table.list<span class="String">'</span></span>).each()<span class="FunctionArgument"> table </span><span class="Storage">=&gt;</span>
@@ -1165,7 +1189,7 @@ <h2 id="resources">Resources</h2>
</li>
<li>
<a href="http://github.com/jnicklas/bistro_car">BistroCar</a><br />
- A Rails plugin by
+ A Rails plugin by
<a href="http://github.com/jnicklas">Jonas Nicklas</a>
that includes CoffeeScript helpers,
bundling and minification.
@@ -1182,7 +1206,7 @@ <h2 id="contributing">Contributing</h2>
<ul>
<li>
A clean, safe syntax for manipulating the prototype chain, and performing
- inheritance. <a href="#inheritance"><b>extends</b> and <b>super</b></a> are the start of this, but
+ inheritance. <a href="#inheritance"><b>extends</b> and <b>super</b></a> are the start of this, but
aren't a complete answer.
</li>
<li>
@@ -1211,11 +1235,16 @@ <h2 id="contributing">Contributing</h2>
<h2 id="change_log">Change Log</h2>
<p>
+ <b class="header" style="margin-top: 20px;">0.2.1</b>
+ Arguments objects are now converted into real arrays when referenced.
+ </p>
+
+ <p>
<b class="header" style="margin-top: 20px;">0.2.0</b>
Major release. Significant whitespace. Better statement-to-expression
conversion. Splats. Splice literals. Object comprehensions. Blocks.
The existence operator. Many thanks to all the folks who posted issues,
- with special thanks to
+ with special thanks to
<a href="http://github.com/kamatsu">Liam O'Connor-Davis</a> for whitespace
and expression help.
</p>
View
2 lib/coffee-script.rb
@@ -10,7 +10,7 @@
# Namespace for all CoffeeScript internal classes.
module CoffeeScript
- VERSION = '0.2.0' # Keep in sync with the gemspec.
+ VERSION = '0.2.1' # Keep in sync with the gemspec.
# Compile a script (String or IO) to JavaScript.
def self.compile(script, options={})
View
2 lib/coffee_script/grammar.y
@@ -12,6 +12,7 @@ token FOR IN BY WHEN WHILE
token SWITCH LEADING_WHEN
token DELETE INSTANCEOF TYPEOF
token SUPER EXTENDS
+token ARGUMENTS
token NEWLINE
token COMMENT
token JS
@@ -97,6 +98,7 @@ rule
| REGEX { result = LiteralNode.new(val[0]) }
| BREAK { result = LiteralNode.new(val[0]) }
| CONTINUE { result = LiteralNode.new(val[0]) }
+ | ARGUMENTS { result = LiteralNode.new(val[0]) }
| TRUE { result = LiteralNode.new(true) }
| FALSE { result = LiteralNode.new(false) }
| YES { result = LiteralNode.new(true) }
View
1 lib/coffee_script/lexer.rb
@@ -15,6 +15,7 @@ class Lexer
"for", "in", "by", "where", "while",
"switch", "when",
"super", "extends",
+ "arguments",
"delete", "instanceof", "typeof"]
# Token matching regexes.
View
7 lib/coffee_script/nodes.rb
@@ -134,6 +134,10 @@ def compile_with_declarations(o={})
class LiteralNode < Node
STATEMENTS = ['break', 'continue']
+ CONVERSIONS = {
+ 'arguments' => 'Array.prototype.slice.call(arguments, 0)'
+ }
+
attr_reader :value
def initialize(value)
@@ -146,9 +150,10 @@ def statement?
alias_method :statement_only?, :statement?
def compile_node(o)
+ val = CONVERSIONS[@value.to_s] || @value.to_s
indent = statement? ? o[:indent] : ''
ending = statement? ? ';' : ''
- write(indent + @value.to_s + ending)
+ write("#{indent}#{val}#{ending}")
end
end
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