superseded by https://github.com/semantic-namespace/atlas

semantic-namespace/contract.function

This module provides a declarative way to define system functions as semantic entities. Functions become part of the compound-identity registry and can be queried, inspected, validated, and composed using ontology tags. No DSL or macro layer is required.

Function contract

A function is defined as a contract instance with five fields:

• :function/impl The implementation. Receives one map containing the merged semantic context.
• :function/context A set of compound-identity keys that must be present in the input map. If a key refers to another function identity, its :function/response is merged.
• :function/response A set of compound-identity keys that the function provides in its output.
• :function.execution/before Optional pre-handler (defaults to identity).
• :function.execution/after Optional post-handler (defaults to identity).

The function identity is expressed entirely through compound-identity axes (e.g. :domain/*, :operation/*, :resource/*, :effect/*, :integration/*, :tier/*, or any project-specific ontology keys).

Core capabilities

• Semantic reasoning over functions
• Minimal test-context derivation
• Consumer/producer graph construction
• Cross-domain dependency analysis
• Semantic composition of contexts
• Static detection of missing producers or unused outputs
• Architectural constraints via axioms
• Alignment with DI and endpoint modules
• Full participation in the compound-identity registry

Design goals

• Zero DSL, only data
• Semantic first, runtime second
• Ontology-driven composition
• Declarative system behavior
• Full introspection from definitions
• Uniform identity vocabulary across modules

clojars info

https://clojars.org/com.github.semantic-namespace/contract.function

usage

https://github.com/semantic-namespace/contract.function/blob/main/test/semantic_namespace/contract/function_test.clj

License

https://opensource.org/licenses/MIT