enabled passing functions as parameters in function call

expr_test.go

@@ -24,11 +24,11 @@ func TestExpr(t *testing.T) {
 	succeeded := 0
 	failed := 0
 
-	// inputs1 := []inputType{
+	inputs1 := []inputType{
-	// 	{`1 ? {"a"} : {"b"} ? ["a"] {"A"} :["b"] {"B"}`, "B", nil},
+		{`f = func(op){op()}; f(func(){2})`, int64(2), nil},
-	// }
+	}
 
-	for i, input := range inputs {
+	for i, input := range inputs1 {
 		var expr Expr
 		var gotResult any
 		var gotErr error

operand-func.go

@@ -89,7 +89,12 @@ type funcDefFunctor struct {
 func (functor *funcDefFunctor) Invoke(ctx ExprContext, name string, args []any) (result any, err error) {
 	for i, p := range functor.params {
 		if i < len(args) {
-			ctx.setVar(p, args[i])
+			arg := args[i]
+			if functor, ok := arg.(Functor); ok {
+				ctx.RegisterFunc(p, functor, 0, -1)
+			} else {
+				ctx.setVar(p, arg)
+			}
 		} else {
 			ctx.setVar(p, nil)
 		}

parser.go

@@ -176,8 +176,6 @@ func (self *parser) parseSelector(scanner *scanner, tree *ast, allowVarRef bool)
 
 	if caseTerm, err = self.parseSelectorCase(scanner, allowVarRef, false); err == nil {
 		addSelectorCase(selectorTerm, caseTerm)
-		// selectorTerm.children = append(selectorTerm.children, caseTerm)
-		// caseTerm.parent = selectorTerm
 	}
 	return
 }
@@ -200,7 +198,6 @@ func (self *parser) parseGeneral(scanner *scanner, allowForest bool, allowVarRef
 		if tk.Sym == SymComment {
 			continue
 		}
-		//resetSelector := true
 
 		if tk.Sym == SymSemiColon {
 			if allowForest {
@@ -268,15 +265,12 @@ func (self *parser) parseGeneral(scanner *scanner, allowForest bool, allowVarRef
 			if selectorTerm == nil {
 				err = tk.Errorf("selector-case outside of a selector context")
 			} else if caseTerm, err = self.parseSelectorCase(scanner, allowVarRef, tk.Sym == SymDoubleColon); err == nil {
-				// selectorTerm.children = append(selectorTerm.children, caseTerm)
-				// caseTerm.parent = selectorTerm
 				addSelectorCase(selectorTerm, caseTerm)
 				currentTerm = caseTerm
 				if tk.Sym == SymDoubleColon {
 					selectorTerm = nil
 				}
 			}
-			//resetSelector = tk.Sym == SymDoubleColon
 		default:
 			currentTerm, err = tree.addToken2(tk)
 		}
@@ -285,9 +279,6 @@ func (self *parser) parseGeneral(scanner *scanner, allowForest bool, allowVarRef
 			selectorTerm = nil
 
 		}
-		// if resetSelector {
-		// 	selectorTree = nil
-		// }
 		lastSym = tk.Sym
 	}
 	return