Index | PAL Intro | Commands | Registers | Indices | Stack | Macros | Classes | Attributes | Errors

ps_classes - Introduction to PROSE object classes

CONTENTS

Pre-requisite Reading
Description
See Also
Author

Please see pal_intro(5) for a general description of PAL.

Objects in the nexus may belong to one or more classes. A class is defined in the schema, and identifies which attributes may (or must) be associated with the object.

The following object classes are defined in the core schema, and may be referenced using the class group of PAL instructions (e.g. class/load).

psArray	Array object. This is a super-class of all array-type objects.
psBoolean	Boolean type variable.
psContainer	General-purpose container. This is a super-class of all PROSE objects.
psError	Error descriptor.
psErrorTrap	Error trap descriptor.
psErrorType	Error type.
psFileLock	A file object with an advisory lock. See ps_stream(5).
psFloat	Multiple precision GMP floating-point variable.
psFunction	Program function.
psIndex	Index type variable.
psInstance	Instance descriptor.
psInteger	Arbitrary precision GMP integer variable.
psIOStream	Direct I/O.
psMatrix	Matrix array.
psMatrixRef	Pointer to matrix array.
psModule	Program module root.
psPointer	Pointer type variable.
psRational	Arbitrary precision GMP rational variable.
psRoot	Top-level root container.
psString	String type variable.
psSystemTimer	Interface to system-wide timer. See ps_time(5).
psThread	Thread descriptor.
psTime	Time type variable.
psTree	Tree array super-class.
psTreeExp	Exploded tree array.
psTreeImp	Imploded tree array.
psVariable	Variable object. This is a super-class of all variable-type objects.
top	Implied class, assigned to all objects.

pal_intro(5), pal_commands(5), class_load(5), ps_attributes(5), ps_file(5), ps_stream(5), ps_time(5),
PROSE Assembly Language at prose.sourceforge.net.

Copyright (c) 2002-2018 Mark R. Bannister <cambridge@users.sourceforge.net>.

This is free software and can be downloaded from prose.sourceforge.net; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.