This section lists proposals made by various individuals to add a feature to the Opal language. Proposals are sorted by status then alphabetically.

Accepted (into 0.6)

• Keywords get, get[], set and set[]
• Method Rename/Overload Control
• Value assignment operator '<-'

Being Considered

• Access Modifers: Remove personal make private=personal
• alias keyword
• Attributes
• Automatic Visitor Base Classes
• base to replace super keyword
• Contravarient Parameter Types
• Deprecated keyword
• Documentation Comments
• Inner keyword equivalent
• Method Properties - i.e. pointer to member
• Overloading operator .
• Parametric Polymorphism: Generics (GJ Style)
• Parametric Polymorphism: As params and properties
• Reflection/Bytecode Standard
• Signals
• Swap ('<=>') Operator
• Threading/Co-routines
• User Defined Operator Names
• Variable Declaration & Creation Shorthand
• Vector Operations

Being Reworked

Rejected

• Overloading operator ()
• Overloaded Function Types a.k.a. Function Bundles

jwalker@cs.oberlin.edu