TITLE 
Object - Perl 6 Object class
DESCRIPTION
This file sets up the base classes and methods for Perl 6's object system. Differences (and conflicts) between Parrot's object model and the Perl 6 model means we have to do a little name and method trickery here and there, and this file takes care of much of that.
Functions
- onload()
- Perform initializations and create the base classes.
- make_proto(class [, 'name'=>name] )
- Create protoobjects and mappings for
class, usingnameas the Perl 6 name for the class. Theclassargument can be a Parrot Class object, or anything that will obtain a Parrot class via theget_classopcode. - !keyword_class(name)
- Internal helper method to create a class.
- !keyword_role(name)
- Internal helper method to create a role.
- !keyword_does(class, role_name)
- Internal helper method to implement the functionality of the does keyword.
- !keyword_has(class, attr_name)
- Adds an attribute with the given name to the class.
Object methods
- new()
- Create a new object having the same class as the invocant.
- isa($class)
- Returns true if the invocant is of type $class.
- WHAT()
- Return the invocant's protoobject.
- HOW()
- Return the invocant's metaclass object (in Parrot, this is the class object for the invocant).
- REJECTS(topic)
- Define REJECTS methods for objects (this would normally be part of the Pattern role, but we put it here for now until we get roles).
- true()
- Defines the .true method on all objects via
prefix:?.
Protoobject methods
Protoobjects are described in Synopsis 12, these are objects that are "empty" instances that differ in definedness and how they respond to certain methods.
- get_string() (vtable method)
- Returns the short name of the class (prototype objects stringify to the short name).
- defined() (vtable method)
- Returns false (prototype objects evaluate as undef).
- HOW()
- Returns the metaclass (Parrot class) of the protoobject.
- WHAT()
- Returns the invocant's protoobject, which in the case of a protoobject is just itself.
