[WIP] Enable CoffeeScript self coverage

Cakefile

@@ -5,6 +5,8 @@ CoffeeScript  = require './lib/coffee-script'
 {spawn, exec} = require 'child_process'
 helpers       = require './lib/coffee-script/helpers'
 
+require("coffee-coverage/register-istanbul")
+
 # ANSI Terminal Colors.
 bold = red = green = reset = ''
 unless process.env.NODE_DISABLE_COLORS
@@ -288,16 +290,26 @@ runTests = (CoffeeScript) ->
   for file in files when helpers.isCoffee file
     literate = helpers.isLiterate file
     currentFile = filename = path.join 'test', file
-    code = fs.readFileSync filename
+    #code = fs.readFileSync filename
+
+    console.log "start", filename
+    code = fs.instrumentFile(filename)
+
     try
-      CoffeeScript.run code.toString(), {filename, literate}
+      #eval(code)
+      mainModule = require.main
+      mainModule._compile code, mainModule.filename
+      console.log "end", filename
+      #CoffeeScript.run code.toString(), {filename, literate}
     catch error
       failures.push {filename, error}
+  console.log "finish!"
   return !failures.length
 
 
 task 'test', 'run the CoffeeScript language test suite', ->
   runTests CoffeeScript
+  process.exit()
 
 
 task 'test:browser', 'run the test suite against the merged browser script', ->

package.json

@@ -29,7 +29,7 @@
   ],
   "preferGlobal": true,
   "scripts": {
-    "test":         "node ./bin/cake test",
+    "test": "node ./bin/cake test",
     "test-harmony": "node --harmony ./bin/cake test"
   },
   "homepage": "http://coffeescript.org",
@@ -39,10 +39,12 @@
     "url": "git://github.com/jashkenas/coffeescript.git"
   },
   "devDependencies": {
-    "uglify-js": "~2.2",
-    "jison": ">=0.2.0",
+    "coffee-coverage": "^1.0.1",
+    "docco": "~0.7.0",
     "highlight.js": "~9.6.0",
-    "underscore": "~1.5.2",
-    "docco": "~0.7.0"
+    "istanbul": "^0.4.5",
+    "jison": ">=0.2.0",
+    "uglify-js": "~2.2",
+    "underscore": "~1.5.2"
   }
 }

src/command.coffee

@@ -101,6 +101,7 @@ exports.run = ->
 
     '''
   for source in opts.arguments
+    console.error("hello!")
     source = path.resolve source
     compilePath source, yes, source
 
@@ -189,6 +190,12 @@ compileScript = (file, input, base = null) ->
       if o.map
         t.output = compiled.js
         t.sourceMap = compiled.v3SourceMap
+      if process.env.COFFEE_BUILD
+        require("coffee-coverage/register-istanbul")
+        code = fs.instrumentFile(t.file)
+        #console.error(code[1..100])
+        #console.error(t.output[1..100])
+        t.output = code
 
       CoffeeScript.emit 'success', task
       if o.print