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validator.go
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/
validator.go
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// Copyright The Notary Project Authors.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package main
import (
"fmt"
"reflect"
)
func fieldSet(name ...string) map[string]struct{} {
fs := make(map[string]struct{})
for _, n := range name {
fs[n] = struct{}{}
}
return fs
}
func validateRequiredField(data any, fieldSet map[string]struct{}) error {
valueOfData := reflect.ValueOf(data)
typeOfData := valueOfData.Type()
for i := 0; i < valueOfData.NumField(); i++ {
fieldName := typeOfData.Field(i).Name
if _, ok := fieldSet[fieldName]; ok {
// check the required field
if valueOfData.Field(i).IsZero() {
return fmt.Errorf("%s is not set", fieldName)
}
}
}
return nil
}