Added hash function to int class

onurkaraman · Mar 22, 2012 · 80304bb · 80304bb
1 parent 812a7e9
commit 80304bb
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Showing 2 changed files with 10 additions and 4 deletions.
diff --git a/src/builtin/integer.coffee b/src/builtin/integer.coffee
@@ -11,8 +11,14 @@ class Int extends Num
       new Int @__floordiv__ operand
     else
       super operand
+
+  # http://effbot.org/zone/python-hash.htm
+  __hash__: ->
+    if @value == -1
+      return new Int(-2)
+    return @
 
-  __invert__: ->  
+  __invert__: ->
     new Int ~@value
 
   __lshift__: (operand) ->
@@ -54,4 +60,4 @@ class Int extends Num
     if issubinstance operand, @
       new Int @value ^ operand.value
     else
-      super operand
+      super operand
diff --git a/src/builtin/primitive.coffee b/src/builtin/primitive.coffee
@@ -14,7 +14,7 @@ class Primitive extends Obj
 
   __le__: (operand) ->
     if issubinstance operand, @
-      new Bool <= operand.value
+      new Bool @value <= operand.value
     else
       super operand
 
@@ -109,4 +109,4 @@ class Primitive extends Obj
   # **Consideration** What is the difference between __repr__ and __str__?
   # How does this affect console.log / print / concatenation?
   __str__: ->
-    new Str @value.toString()
+    new Str @value.toString()