Reference Manual

Grammar

Compilation units

Object definition

Category definition

Protocol definition

Entity relations

• Implemented protocols
• Extended protocols
• Imported categories
• Extended objects
• Instantiated objects
• Specialized objects
• Entity scope

Entity identifiers

• Object identifiers
• Category identifiers
• Protocol identifiers

Directives

• Object directives
• Category directives
• Protocol directives
• Predicate directives

Clauses

Entity properties

Predicate properties

Directives

Entity directives

• calls/1
• category/1-2
• dynamic/0
• end_category/0
• end_object/0
• end_protocol/0
• info/1
• initialization/1
• object/1-5
• protocol/1-2
• uses/1

Predicate directives

• discontiguous/1
• dynamic/1
• info/2
• metapredicate/1
• mode/2
• op/3
• private/1
• protected/1
• public/1

Built-in predicates

Enumerating objects, categories and protocols

• current_category/1
• current_object/1
• current_protocol/1

Enumerating objects, categories and protocols properties

• category_property/2
• object_property/2
• protocol_property/2

Creating new objects, categories and protocols

• create_category/4
• create_object/4
• create_protocol/3

Abolishing objects, categories and protocols

• abolish_category/1
• abolish_object/1
• abolish_protocol/1

Objects, categories and protocols relations

• extends_object/2-3
• extends_protocol/2-3
• implements_protocol/2-3
• imports_category/2-3
• instantiates_class/2-3
• specializes_class/2-3

Event handling

• abolish_events/5
• current_event/5
• define_events/5

Compiling and loading objects, categories and protocols

• logtalk_compile/1
• logtalk_compile/2
• logtalk_load/1
• logtalk_load/2

Flags

• current_logtalk_flag/2
• set_logtalk_flag/2

Others

• forall/2
• retractall/1

Built-in methods

Local methods

• parameter/2
• self/1
• sender/1
• this/1

Reflection methods

• current_predicate/1
• predicate_property/2

Database methods

• abolish/1
• asserta/1
• assertz/1
• clause/2
• retract/1
• retractall/1

All solutions methods

• bagof/3
• findall/3
• forall/2
• setof/3

Event handler methods

• before/3
• after/3

DCG rules parsing methods

• phrase/2
• phrase/3

Control constructs

Message sending

• ::/2
• ::/1
• ^^/1

Calling external code

• {}/1