f76f14c0ce# Describe Request Added copyright header to the code. Fixes #112 # Change Type Documentation change.
42 lines
1.1 KiB
Go
42 lines
1.1 KiB
Go
// Package checker is a Go library for validating user input through struct tags.
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//
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// https://github.com/cinar/checker
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//
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// Copyright 2023 Onur Cinar. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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//
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package checker
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import "reflect"
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// CheckerRequired is the name of the checker.
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const CheckerRequired = "required"
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// ResultRequired indicates that the required value is missing.
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const ResultRequired Result = "REQUIRED"
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// IsRequired checks if the given required value is present.
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func IsRequired(v interface{}) Result {
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return checkRequired(reflect.ValueOf(v), reflect.ValueOf(nil))
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}
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// makeRequired makes a checker function for required.
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func makeRequired(_ string) CheckFunc {
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return checkRequired
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}
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// checkRequired checks if the required value is present.
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func checkRequired(value, _ reflect.Value) Result {
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if value.IsZero() {
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return ResultRequired
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}
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k := value.Kind()
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if (k == reflect.Array || k == reflect.Map || k == reflect.Slice) && value.Len() == 0 {
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return ResultRequired
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}
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return ResultValid
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}
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