8ab15d7372
Any variables generated by CoffeeScript are now made sure to be named to something not present in the source code being compiled. This way you can no longer interfere with them, either on purpose or by mistake. (#1500, #1574) For example, `({a}, _arg) ->` now compiles correctly. (#1574) As opposed to the somewhat complex implementations discussed in #1500, this commit takes a very simple approach by saving all used variables names using a single pass over the token stream. Any generated variables are then made sure not to exist in that list. `(@a) -> a` used to be equivalent to `(@a) -> @a`, but now throws a runtime `ReferenceError` instead (unless `a` exists in an upper scope of course). (#3318) `(@a) ->` used to compile to `(function(a) { this.a = a; })`. Now it compiles to `(function(_at_a) { this.a = _at_a; })`. (But you cannot access `_at_a` either, of course.) Because of the above, `(@a, a) ->` is now valid; `@a` and `a` are not duplicate parameters. Duplicate this-parameters with a reserved word, such as `(@case, @case) ->`, used to compile but now throws, just like regular duplicate parameters. |
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| bin | ||
| documentation | ||
| examples | ||
| extras | ||
| lib/coffee-script | ||
| src | ||
| test | ||
| .gitignore | ||
| .npmignore | ||
| CNAME | ||
| CONTRIBUTING.md | ||
| Cakefile | ||
| LICENSE | ||
| README | ||
| README.md | ||
| bower.json | ||
| index.html | ||
| package.json | ||
| register.js | ||
| repl.js | ||
README.md
{
} } {
{ { } }
} }{ {
{ }{ } } _____ __ __
{ }{ }{ { } / ____| / _|/ _|
.- { { } { }} -. | | ___ | |_| |_ ___ ___
( { } { } { } } ) | | / _ \| _| _/ _ \/ _ \
|`-..________ ..-'| | |___| (_) | | | || __/ __/
| | \_____\___/|_| |_| \___|\___|
| ;--.
| (__ \ _____ _ _
| | ) ) / ____| (_) | |
| |/ / | (___ ___ _ __ _ _ __ | |_
| ( / \___ \ / __| '__| | '_ \| __|
| |/ ____) | (__| | | | |_) | |_
| | |_____/ \___|_| |_| .__/ \__|
`-.._________..-' | |
|_|
CoffeeScript is a little language that compiles into JavaScript.
Installation
If you have the node package manager, npm, installed:
npm install -g coffee-script
Leave off the -g if you don't wish to install globally. If you don't wish to use npm:
git clone https://github.com/jashkenas/coffeescript.git
sudo coffeescript/bin/cake install
Getting Started
Execute a script:
coffee /path/to/script.coffee
Compile a script:
coffee -c /path/to/script.coffee
For documentation, usage, and examples, see: http://coffeescript.org/
To suggest a feature or report a bug: http://github.com/jashkenas/coffeescript/issues
If you'd like to chat, drop by #coffeescript on Freenode IRC.
The source repository: https://github.com/jashkenas/coffeescript.git
Our lovely and talented contributors are listed here: http://github.com/jashkenas/coffeescript/contributors