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merging all narwhal integration into a single file, so we can merge the node branch without breaking narwhal compatibility

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Jeremy Ashkenas
2010-02-07 11:54:01 -05:00
parent 47bc1d5fda
commit 5ec096e40d
6 changed files with 55 additions and 70 deletions
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54
lib/coffee_script/narwhal/coffee-script.coffee
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@@ -1,62 +1,74 @@
# This (javascript) file is generated from lib/coffee_script/narwhal/coffee-script.coffee
# Executes the `coffee` Ruby program to convert from CoffeeScript
# to Javascript. Eventually this will hopefully happen entirely within JS.
# The Narwhal-compatibility wrapper for CoffeeScript.
# Require external dependencies.
OS: require('os')
File: require('file')
Readline: require('readline')
OS: require 'os'
File: require 'file'
Readline: require 'readline'
# The path to the CoffeeScript Compiler.
coffeePath: File.path(module.path).dirname().dirname().dirname().dirname().dirname().join('bin', 'coffee')
coffeePath: File.path(module.path).dirname().dirname().dirname().dirname().join('bin', 'coffee')
# Our general-purpose error handler.
checkForErrors: (coffeeProcess) ->
return true if coffeeProcess.wait() is 0
system.stderr.print(coffeeProcess.stderr.read())
throw new Error("CoffeeScript compile error")
system.stderr.print coffeeProcess.stderr.read()
throw new Error "CoffeeScript compile error"
# Run a simple REPL, round-tripping to the CoffeeScript compiler for every
# command.
exports.run: (args) ->
if args.length
for path, i in args
exports.evalCS(File.read(path))
exports.evalCS File.read path
delete args[i]
return true
while true
try
system.stdout.write('coffee> ').flush()
result: exports.evalCS(Readline.readline(), ['--globals'])
print(result) if result isnt undefined
result: exports.evalCS Readline.readline(), ['--globals']
print result if result isnt undefined
catch e
print(e)
print e
# Compile a given CoffeeScript file into JavaScript.
exports.compileFile: (path) ->
coffee: OS.popen([coffeePath, "--print", "--no-wrap", path])
checkForErrors(coffee)
coffee: OS.popen [coffeePath, "--print", "--no-wrap", path]
checkForErrors coffee
coffee.stdout.read()
# Compile a string of CoffeeScript into JavaScript.
exports.compile: (source, flags) ->
coffee: OS.popen([coffeePath, "--eval", "--no-wrap"].concat(flags or []))
coffee: OS.popen [coffeePath, "--eval", "--no-wrap"].concat flags or []
coffee.stdin.write(source).flush().close()
checkForErrors(coffee)
checkForErrors coffee
coffee.stdout.read()
# Evaluating a string of CoffeeScript first compiles it externally.
exports.evalCS: (source, flags) ->
eval(exports.compile(source, flags))
eval exports.compile source, flags
# Make a factory for the CoffeeScript environment.
exports.makeNarwhalFactory: (path) ->
code: exports.compileFile(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 parentheses, but parentheses break compileFunction.
eval("(" + factoryText + ")")
eval "(" + factoryText + ")"
# The Narwhal loader for '.coffee' files.
factories: {}
loader: {}
# Reload the coffee-script environment from source.
loader.reload: (topId, path) ->
factories[topId]: ->
exports.makeNarwhalFactory path
# Ensure that the coffee-script environment is loaded.
loader.load: (topId, path) ->
factories[topId] ||= this.reload topId, path
require.loader.loaders.unshift [".coffee", loader]