First successful test of a little test script. Need to massage the lo…

…cal runtime a little bit better.

.gitignore

@@ -7,3 +7,4 @@ test/*.js
 examples/beautiful_code/parse.coffee
 *.gem
 /node_modules
+*~

Cakefile

@@ -29,7 +29,8 @@ header = """
 
 sources = [
   'coffee-script', 'grammar', 'helpers'
-  'lexer', 'nodes', 'rewriter', 'scope'
+  'lexer', 'nodes', 'rewriter', 'scope',
+  'tame', 'tamerun'
 ].map (filename) -> "src/#{filename}.coffee"
 
 # Run a CoffeeScript through our node/coffee interpreter.

src/nodes.coffee

@@ -180,6 +180,11 @@ exports.Base = class Base
       @tameNodeFlag = true if child.walkAstTame()
     @tameNodeFlag
 
+  needsRuntime : ->
+    for child in @flattenChildren()
+      return true if child.needsRuntime()
+    return false
+
   # Walk all loops that are marked as "tamed" and mark their children
   # as being children in a tamed loop. They'll need more translations
   # than other nodes. Eventually, "switch" statements might also be "loops
@@ -453,12 +458,22 @@ exports.Block = class Block extends Base
     return nodes[0] if nodes.length is 1 and nodes[0] instanceof Block
     new Block nodes
 
+  addRuntime : ->
+    ns = new Value new Literal tame.const.ns
+    req = new Value new Literal 'require'
+    lib = '"' + tame.const.runtime + '"'
+    call = new Call req, [ new Value new Literal lib ]
+    assign = new Assign ns, call
+    @expressions.unshift assign
+
   # Perform all steps of the Tame transform
   tameTransform : ->
     @walkAstTame()
+    @addRuntime() if @needsRuntime()
     @walkAstTamedLoop(false)
     @walkCpsPivots()
     @cpsRotate()
+    this
 
 #### Literal
 
@@ -1438,9 +1453,9 @@ exports.Code = class Code extends Base
     @tameLoopFlag = true if super(false)
     false
 
-  walkAstPivots: () ->
-    @cpsPivotFlag = true if super()
-    false
+  walkCpsPivots: ->
+    super()
+    @cpsPivotFlag = false
 
 #### Param
 
@@ -1900,6 +1915,8 @@ exports.Defer = class Defer extends Base
       scope.add name, 'var'
     @call.compile o
 
+  needsRuntime : -> true
+
 #### Await
 
 exports.Await = class Await extends Base

src/tame.coffee

@@ -1,4 +1,7 @@
 
+#=======================================================================
+# Compile Time!
+# 
 exports.AstTamer = class AstTamer
 
     constructor: (rest...) ->
@@ -19,3 +22,6 @@ exports.const =
   defer_method : "defer"
   slot : "__slot"
   assign_fn : "assign_fn"
+  runtime : "tamerun"
+
+

src/tamerun.coffee

@@ -0,0 +1,35 @@
+
+#=======================================================================
+
+makeDeferReturn = (obj, defer_args, id) ->
+  ret = (inner_args...) ->
+    defer_args?.assign_fn?.apply(null, inner_args)
+    obj._fulfill id
+
+  if defer_args
+    ret.__tame_trace = {}
+    for k in [ "parent_cb", "file", "line", "func_name" ]
+      ret.__tame_trace[k] = defer_args[k]
+
+  ret
+
+#=======================================================================
+# Deferrals
+# 
+#   A collection of Deferrals that can
+# 
+exports.Deferrals = class Deferrals
+
+  constructor: (k) ->
+    @continuation = k
+    @count = 1
+
+  _fulfill : ->
+    @continuation() if --@count == 0
+
+  defer : (args) ->
+    @count++
+    self = this
+    return makeDeferReturn self, args, null
+
+#=======================================================================