Fix errors in checker

Author: antonmedv

checker/checker.go

@@ -434,7 +434,7 @@ func (v *visitor) MemberNode(node *ast.MemberNode) (reflect.Type, info) {
 		// First, check methods defined on base type itself,
 		// independent of which type it is. Without dereferencing.
 		if m, ok := base.MethodByName(name.Value); ok {
-			if base.Kind() == reflect.Interface {
+			if kind(base) == reflect.Interface {
 				// In case of interface type method will not have a receiver,
 				// and to prevent checker decreasing numbers of in arguments
 				// return method type as not method (second argument is false).
@@ -452,11 +452,11 @@ func (v *visitor) MemberNode(node *ast.MemberNode) (reflect.Type, info) {
 		}
 	}
 
-	if base.Kind() == reflect.Ptr {
+	if kind(base) == reflect.Ptr {
 		base = base.Elem()
 	}
 
-	switch base.Kind() {
+	switch kind(base) {
 	case reflect.Interface:
 		return anyType, info{}
 

compiler/compiler_test.go

@@ -285,6 +285,7 @@ func TestCompile_panic(t *testing.T) {
 		`(TotalPosts.Profile[Authors > TotalPosts == get(nil, TotalLikes)] > Authors) ^ (TotalLikes / (Posts?.PublishDate[TotalPosts] < Posts))`,
 		`one(Posts, nil)`,
 		`trim(TotalViews, Posts) <= get(Authors, nil)`,
+		`Authors.IsZero(nil * Authors) - (TotalViews && Posts ? nil : nil)[TotalViews.IsZero(false, " ").IsZero(Authors)]`,
 	}
 	for _, test := range tests {
 		t.Run(test, func(t *testing.T) {