Ignore interface{} params when checking

Author: cschleiden

internal/fn/fn.go

@@ -41,6 +41,11 @@ func ParamsMatch(fn interface{}, skip int, args ...interface{}) bool {
 	}
 
 	for i, arg := range args {
+		// if target is interface{} skip
+		if fnType.In(skip+i).Kind() == reflect.Interface {
+			continue
+		}
+
 		if fnType.In(skip+i) != reflect.TypeOf(arg) {
 			return false
 		}

internal/fn/fn_test.go

@@ -120,6 +120,9 @@ func intParam(int) {
 func stringParam(string) {
 }
 
+func interfaceParam(string, interface{}, int) {
+}
+
 func mixedParams(context.Context, int, string) {
 }
 
@@ -150,6 +153,13 @@ func TestParamsMatch(t *testing.T) {
 			},
 			want: false,
 		},
+		{
+			name: "interface{} ignored",
+			fn: func() bool {
+				return ParamsMatch(interfaceParam, 0, "", 23, 42)
+			},
+			want: true,
+		},
 		{
 			name: "mixed params",
 			fn: func() bool {