also have a way to avoid stack overflows if possible.

maxtaco · Jan 24, 2012 · 6e38a46 · 6e38a46
1 parent 47d6dc2
commit 6e38a46
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Showing 3 changed files with 52 additions and 3 deletions.
diff --git a/lib/coffee-script/tame.js b/lib/coffee-script/tame.js
diff --git a/src/tame.coffee b/src/tame.coffee
@@ -39,12 +39,28 @@ makeDeferReturn = (obj, defer_args, id) ->
 
   ret
 
+#-----------------------------------------------------------------------
+# 
+# Tick Counter --
+#    count off every mod processor ticks
+# 
+__c = 0
+
+tickCounter = (mod) ->
+  __c++
+  if (__c % mod) == 0
+    __c = 0
+    true
+  else
+    false
+
 #-----------------------------------------------------------------------
 # Deferrals
 #
 #   A collection of Deferrals; this is a better version than the one
 #   that's inline; it allows for tame tracing
 #
+
 class Deferrals
 
   constructor: (k) ->
@@ -53,7 +69,11 @@ class Deferrals
     @ret = null
 
   _fulfill : ->
-    @continuation @ret if --@count == 0
+    if --@count == 0
+      if tickCounter 500
+        process.nextTick (=> @continuation @ret)
+      else
+        @continuation @ret
 
   defer : (args) ->
     @count++

diff --git a/test/tame_advanced.coffee b/test/tame_advanced.coffee
@@ -64,3 +64,11 @@ if require?
     for s in slots
       ok = false unless s == 7
     cb(ok, {})
+
+##----------------------------------------------------------------------
+
+  atest "stack protector", (cb) ->
+    noop = (cb) -> cb()
+    for i in [0..10000]
+      await noop defer()
+    cb(true, {})