object

# `rfc_metric`

Response For a Class (RFC) metric. The score is the number of distinct predicates in the response set: the locally defined (non-auxiliary) predicates plus all distinct predicates they directly call or update. Protocols are not scored as they cannot define predicates. The score is represented by a non-negative integer.

Availability:
`logtalk_load(code_metrics(loader))`
Author: Paulo Moura
Version: 1:0:0
Date: 2026-03-13
Compilation flags:
`static, context_switching_calls`
Imports:
`public` code_metrics_utilities
`public` code_metric
Provides:
logtalk::message_tokens//2
Uses:
list
logtalk
numberlist
Remarks:

> - Response set: The response set RS(E) for an entity E is the union of its locally defined (non-auxiliary) predicates and all predicates directly called or updated by those predicates.

> - Score interpretation: Higher scores indicate entities with more potential execution paths in response to a message, which may increase testing effort.

> - Aggregation: When computing scores for files, directories, and libraries, the individual entity scores are summed.

Inherited public predicates:
all/0 all/1 all_score/1 check_option/1 check_options/1 default_option/1 default_options/1 directory/1 directory/2 directory_score/2 entity/1 entity_score/2 file/1 file/2 file_score/2 format_entity_score//2 library/1 library/2 library_score/2 option/2 option/3 rdirectory/1 rdirectory/2 rdirectory_score/2 rlibrary/1 rlibrary/2 rlibrary_score/2 valid_option/1 valid_options/1

## Public predicates

(no local declarations; see entity ancestors if any)

## Protected predicates

(no local declarations; see entity ancestors if any)

## Private predicates

(no local declarations; see entity ancestors if any)

## Operators

(none)