standalone @ and @@ are aliases for self and self.__class

docs/reference.md

@@ -864,6 +864,23 @@ described above:
 These expressions are executed after all the properties have been added to the
 *base*.
 
+
+### `@` and `@@` Values
+
+When `@` and `@@` are prefixed in front of a name they represent, respectively,
+that name accessed in `self` and `self.__class`.
+
+If they are used all by themselves, they are aliases for `self` and
+`self.__class`.
+
+    assert @ == self
+    assert @@ == self.__class
+
+For example, a quick way to create a new instance of the same class from an
+instance method using `@@`:
+
+    some_instance_method = (...) => @@ ...
+
 ## Export Statement
 
 Because, by default, all assignments to variables that are not lexically visible will

moonscript/parse.lua

@@ -266,7 +266,10 @@ local build_grammar = wrap_env(function()
 		return true
 	end) / trim
 
-	local SelfName = Space * "@" * ("@" * _Name / mark"self_class" + _Name / mark"self")
+	local SelfName = Space * "@" * (
+		"@" * (_Name / mark"self_class" + Cc"self.__class") +
+		_Name / mark"self" + Cc"self")
+
 	local KeyName = SelfName + Space * _Name
 
 	local Name = SelfName + Name + Space * "..." / trim

tests/inputs/class.moon

@@ -101,3 +101,17 @@ class ClassMan
   @red: =>
 
 
+x = @
+y = @@
+
+@ something
+
+@@ something
+
+@ = @ + @ / @
+
+@ = 343
+@.hello 2,3,4
+
+hello[@].world
+