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majorly cleaned up the CoffeeScript that defines the Narwhal integration

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This commit is contained in:
Jeremy Ashkenas
2009-12-24 23:28:01 -08:00
parent 2d57ee693b
commit 7a0de52c96
4 changed files with 83 additions and 90 deletions
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66
lib/coffee_script/narwhal/coffee-script.cs
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@@ -1,8 +1,24 @@
# This (javascript) file is generated from lib/coffee_script/narwhal/coffee-script.cs
File: require('file')
OS: require('os')
# Executes the `coffee-script` Ruby program to convert from CoffeeScript
# to Javascript. Eventually this will hopefully happen entirely within JS.
# Require external dependencies.
OS: require('os')
File: require('file')
Readline: require('readline')
# The path to the CoffeeScript Compiler.
coffeePath: File.path(module.path).dirname().dirname().join('bin', 'coffee-script')
# Our general-purpose error handler.
checkForErrors: coffeeProcess =>
return true if coffeeProcess.wait() is 0
system.stderr.print(coffeeProcess.stderr.read())
throw new Error("coffee-script compile error").
# Run a simple REPL, round-tripping to the CoffeeScript compiler for every
# command.
exports.run: args =>
args.shift()
return require(File.absolute(args[0])) if args.length
@@ -10,54 +26,34 @@ exports.run: args =>
while true
try
system.stdout.write('cs> ').flush()
result: exports.cs_eval(require('readline').readline())
result: exports.evalCS(Readline.readline())
print(result) if result isnt undefined
catch e
print(e)...
# executes the coffee-script Ruby program to convert from CoffeeScript to Objective-J.
# eventually this will hopefully be replaced by a JavaScript program.
coffeePath: File.path(module.path).dirname().dirname().join('bin', 'coffee-script')
# Compile a given CoffeeScript file into JavaScript.
exports.compileFile: path =>
coffee: OS.popen([coffeePath, "--print", "--no-wrap", path])
if coffee.wait() isnt 0
system.stderr.print(coffee.stderr.read())
throw new Error("coffee-script compile error").
checkForErrors(coffee)
coffee.stdout.read().
# Compile a string of CoffeeScript into JavaScript.
exports.compile: source =>
coffee: OS.popen([coffeePath, "--eval", "--no-wrap"])
coffee: OS.popen([coffeePath, "--eval", "--no-wrap"])
coffee.stdin.write(source).flush().close()
checkForErrors(coffee)
coffee.stdout.read().
coffee.stdin.write(source).flush().close()
# Evaluating a string of CoffeeScript first compiles it externally.
exports.evalCS: source =>
eval(exports.compile(source)).
if coffee.wait() isnt 0
system.stderr.print(coffee.stderr.read())
throw new Error("coffee-script compile error").
coffee.stdout.read().
# these two functions are equivalent to objective-j's objj_eval/make_narwhal_factory.
# implemented as a call to coffee and objj_eval/make_narwhal_factory
exports.cs_eval: source =>
init()
eval(exports.compile(source)).
exports.make_narwhal_factory: path =>
init()
# Make a factory for the CoffeeScript environment.
exports.makeNarwhalFactory: path =>
code: exports.compileFile(path)
factoryText: "function(require,exports,module,system,print){" + code + "/**/\n}"
if system.engine is "rhino"
Packages.org.mozilla.javascript.Context.getCurrentContext().compileFunction(global, factoryText, path, 0, null)
else
# eval requires parenthesis, but parenthesis break compileFunction.
eval("(" + factoryText + ")")..
init: =>
# make sure it's only done once
init: => ..