The function parameter model has been modified to support the passing of named parameters

expr-function.go

@@ -7,7 +7,7 @@ package expr
 // ---- Functor interface
 type Functor interface {
 	Typer
-	Invoke(ctx ExprContext, name string, args []any) (result any, err error)
+	InvokeNamed(ctx ExprContext, name string, args map[string]any) (result any, err error)
 	SetFunc(info ExprFunc)
 	GetFunc() ExprFunc
 	GetParams() []ExprFuncParam
@@ -33,6 +33,6 @@ type ExprFunc interface {
 	Functor() Functor
 	Params() []ExprFuncParam
 	ReturnType() string
-	PrepareCall(parentCtx ExprContext, name string, varParams *[]any) (ctx ExprContext, err error)
+	PrepareCall(parentCtx ExprContext, name string, callTerm *term) (ctx ExprContext, actualParams map[string]any, err error)
 	AllocContext(parentCtx ExprContext) (ctx ExprContext)
 }