// See NewExpressions for details.
func (e *EnvSet) NewExpressionsEnv() *cel.Env {
	return e.newExpressions
}

// StoredExpressionsEnv returns the StoredExpressions environment Type for this EnvSet.
// See StoredExpressions for details.
func (e *EnvSet) StoredExpressionsEnv() *cel.Env {
	return e.storedExpressions
}

// Env returns the CEL environment for the given Type.

func StoredExpressionsEnvLoader() EnvLoader {
	return alwaysNewEnvLoader{loadFn: func(envSet *environment.EnvSet) *cel.Env {
		return envSet.StoredExpressionsEnv()
	}}
}

type alwaysNewEnvLoader struct {
	loadFn func(envSet *environment.EnvSet) *cel.Env
}

func (pe alwaysNewEnvLoader) RuleEnv(envSet *environment.EnvSet, _ string) *cel.Env {

	if pe.rules.Has(expression) {
		return envSet.StoredExpressionsEnv()
	}
	return envSet.NewExpressionsEnv()
}

func (pe preexistingExpressions) MessageExpressionEnv(envSet *environment.EnvSet, expression string) *celgo.Env {
	if pe.messageExpressions.Has(expression) {
		return envSet.StoredExpressionsEnv()
	}
	return envSet.NewExpressionsEnv()
}