active/core/vals/flds/sfields.go

// ------------------------------------------------------------------------
//   Project active2
//   Active Thing (activething.com) git.activething.com/go
//
//   File name  sfields.go
//   Created by DEV
//   Modified   30/04/2024
//
//   Copyright 2024 activething.com 
// ------------------------------------------------------------------------
// 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 flds

import "sort"

type (

	SFields 	[]SField

)


func (f SFields) Len () int {
	return len(f) }

func (f SFields) Has (name string) bool {
	return f.has(name) != -1 }

func (f SFields) has (name string) int {
	for i,f := range f {
		if f.Name() == name {
			return i
		}
	}
	return -1
}

func (f SFields) Kinds() Kind {
	var k Kind
	for _,f := range f {
		k|=f.Kind()
	}
	return k
}

func (f SFields) GeField (name string) SField {
	if p := f.has(name); p != -1 {
		return f[p]
	}
	return nil
}

func (f SFields) AddField (field SField) SFields {
	if field != nil {
		return append(f,field)
	}
	return f
}

func (f SFields) DelField (name string) SFields {
	if p := f.has(name); p != -1 {
		return append(f[:p],f[p+1:]...)
	}
	return f
}



func (f SFields) Sort() {
	sort.Sort(f) }

func (f SFields) Swap(i, j int) {
	f[i], f[j] = f[j], f[i] }

func (f SFields) Less(i, j int) bool {
	return f[i].Name() < f[j].Name() }