-- Patch.mesa
-- Last changed by Doug Wyatt, September 11, 1980  6:45 PM

DIRECTORY
	Area USING [Handle],
	Pipe USING [Handle];

Patch: DEFINITIONS = {

Handle: TYPE = LONG POINTER TO Object;

New: PROC[Area.Handle] RETURNS[Handle];

NewPipe: PROC[self: Handle, ipipe,opipe: Pipe.Handle]
	RETURNS[Pipe.Handle] = INLINE {
	RETURN[self.procs.NewPipe[self,ipipe,opipe]]
	};
Copy: PROC[self: Handle] RETURNS[Handle] = INLINE {
	RETURN[self.procs.Copy[self]]
	};
Free: PROC[selfPtr: LONG POINTER TO Handle] = INLINE {
	self: Handle=selfPtr^; selfPtr^_NIL; self.procs.Free[self]
	};

Object: PRIVATE TYPE = RECORD [
	procs: LONG POINTER TO READONLY Procs,
	data: LONG POINTER TO Data
	];
Procs: PRIVATE TYPE = RECORD [
	NewPipe: PROC[self: Handle, ipipe,opipe: Pipe.Handle]
		RETURNS[Pipe.Handle],
	Copy: PROC[self: Handle] RETURNS[Handle],
	Free: PROC[self: Handle]
	];
Data: PRIVATE TYPE;

PatchImpl: PROGRAM;

}.(670)