expression

Documentation

Overview

Package expression defines the narrow contracts used by expression clients. The mutable implementation remains in schema during the compatibility window.

Index

• type PredicateEvaluator
• type Registry

Types

type PredicateEvaluator

type PredicateEvaluator interface {
	Evaluate(map[string]interface{}) (bool, error)
}

PredicateEvaluator evaluates a compiled predicate against a registry-owned snapshot.

type Registry

type Registry interface {
	Set(string, interface{})
	Get(string) (interface{}, bool)
	RegisterFunction(string, interface{})
	EvaluateExpression(string) (interface{}, error)
}

Registry is the data/function surface required by predicate compilation and evaluation.