create_category/4

Description

create_category(Identifier, Relations, Directives, Clauses)

Creates a new, dynamic, category.

Template and modes

create_category(+category_identifier, +list, +list, +list)

Errors

Identifier is a variable:

instantiation_error

Identifier is not a valid category identifier:

type_error(category_identifier, Identifier)

Identifier is already in use:

permission_error(replace, category, Identifier)

permission_error(replace, object, Identifier)

permission_error(replace, protocol, Identifier)

Relations is not a list:

type_error(list, Relations)

Directives is not a list:

type_error(list, Directives)

Clauses is not a list:

type_error(list, Clauses)

Examples

| ?- create_category(foo, [implements(bar)], [], [bar(1), bar(2)]).

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Last updated on: July 4, 2000