predicate_options:derive_predicate

Documentation
- Reference manual
  - The SWI-Prolog library
    - library(predicate_options): Declare option-processing of predicates
      - Improving on the current situation
        
        Reflective access to options
        
        predicate_options/3
        
        assert_predicate_options/4
        
        current_predicate_option/3
        
        check_predicate_option/3
        
        current_option_arg/2
        
        current_predicate_options/3
        
        check_predicate_options/0
        
        derive_predicate_options/0
        
        retractall_predicate_options/0
        
        derived_predicate_options/3
        
        derived_predicate_options/1
- Packages

Availability::- use_module(library(predicate_options)).(can be autoloaded)

Derive new predicate option declarations. This predicate analyses the loaded program to find clauses that process options using one of the predicates from library(option) or passes options to other predicates that are known to process options. The process is repeated until no new declarations are retrieved.

See also: autoload/0 may be used to complete the loaded program.