WIP: Add Enumerator class

lib/array.gb

@@ -5,10 +5,6 @@ class Array
     end
   end
 
-  def to_enum
-    ArrayEnumerator.new(self)
-  end
-
   # Return a lazy iterator for self.
   #
   def lazy

lib/array_enumerator.gb

@@ -1,4 +1,4 @@
-# Minimail implementation of an array enumerator.
+# Minimum implementation of an array enumerator.
 #
 # Assumes that the Enumerator interface has two methods: #has_next? and #next.
 #

vm/array.go

@@ -1387,6 +1387,13 @@ var builtinArrayInstanceMethods = []*BuiltinMethodObject{
 
 		},
 	},
+	{
+		// @return [Enumerator]
+		Name: "to_enum",
+		Fn: func(receiver Object, sourceLine int, t *Thread, args []Object, blockFrame *normalCallFrame) Object {
+			return t.vm.InitEnumeratorObject(receiver, "", nil)
+		},
+	},
 	{
 		// Returns the result of interpreting ary as an array of [key value] array pairs.
 		// Note that the keys should always be String or symbol literals (using symbol literal is preferable).
@@ -1428,7 +1435,6 @@ var builtinArrayInstanceMethods = []*BuiltinMethodObject{
 			}
 
 			return t.vm.InitHashObject(hash)
-
 		},
 	},
 	{
@@ -1817,3 +1823,7 @@ func (a *ArrayObject) unshift(objs []Object) *ArrayObject {
 	a.Elements = append(objs, a.Elements...)
 	return a
 }
+
+func (a *ArrayObject) Enumerable() bool {
+	return true
+}

vm/classes/classes.go

@@ -1,25 +1,26 @@
 package classes
 
 const (
-	ObjectClass    = "Object"
-	ClassClass     = "Class"
-	ModuleClass    = "Module"
-	IntegerClass   = "Integer"
-	FloatClass     = "Float"
-	StringClass    = "String"
-	ArrayClass     = "Array"
-	HashClass      = "Hash"
-	BooleanClass   = "Boolean"
-	NullClass      = "Null"
-	ChannelClass   = "Channel"
-	RangeClass     = "Range"
-	MethodClass    = "Method"
-	PluginClass    = "Plugin"
-	GoObjectClass  = "GoObject"
-	FileClass      = "File"
-	RegexpClass    = "Regexp"
-	MatchDataClass = "MatchData"
-	GoMapClass     = "GoMap"
-	DecimalClass   = "Decimal"
-	BlockClass     = "Block"
+	ObjectClass     = "Object"
+	ClassClass      = "Class"
+	ModuleClass     = "Module"
+	IntegerClass    = "Integer"
+	FloatClass      = "Float"
+	StringClass     = "String"
+	ArrayClass      = "Array"
+	HashClass       = "Hash"
+	BooleanClass    = "Boolean"
+	NullClass       = "Null"
+	ChannelClass    = "Channel"
+	RangeClass      = "Range"
+	MethodClass     = "Method"
+	PluginClass     = "Plugin"
+	GoObjectClass   = "GoObject"
+	FileClass       = "File"
+	RegexpClass     = "Regexp"
+	MatchDataClass  = "MatchData"
+	GoMapClass      = "GoMap"
+	DecimalClass    = "Decimal"
+	BlockClass      = "Block"
+	EnumeratorClass = "Enumerator"
 )