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119 lines
2.4 KiB
119 lines
2.4 KiB
// ------------------------------------------------------------------------
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// Project atila
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// Active Thing (activething.com) git.activething.com/go
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//
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// File name properties.go
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// Created by DEV
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// Modified 20/02/2024
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//
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// Copyright 2024 activething.com
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// ------------------------------------------------------------------------
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// ------------------------------------------------------------------------
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package values
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import "activething.com/go/gogo/core/opts"
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type (
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Properties struct {
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atts PropertiesAtt
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parent *Properties
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props map[string]any
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}
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PropertiesWalkFnc func(key string, value any) bool
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)
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func NewProperties (options ...opts.OptionFnc[Properties]) *Properties {
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return opts.Apply(&Properties{
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props: make(map[string]any),
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}, options ...)
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}
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func (p *Properties) Get (name string) (any,bool) {
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v,h := p.props[name]
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if h {
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return v,true
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}
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if p.parent != nil {
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return p.parent.Get(name)
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}
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return nil,false
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}
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func (p *Properties) Set (nme string, val interface{}) error {
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if p.atts.IsReadOnly() {
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return G.Errors.PropertiesReadOnly
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}
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if _,hs := p.props[nme]; !hs && p.IsFixed() {
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return Errors.PropertiesFixed
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}
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p.props[nme]=val
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return nil
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}
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func (p *Properties) Del (nme string) error {
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if p.ref != nil {
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if _,hs := p.props[nme]; hs && p.IsReadOnly() {
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return Errors.PropertiesReadOnly
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}
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delete(p.props,nme)
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return nil
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}
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if _,hs := p.props[nme]; hs {
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if p.IsFixed() {
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return Errors.PropertiesFixed
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}
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if p.IsReadOnly() {
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return Errors.PropertiesReadOnly
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}
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}
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delete(p.props,nme)
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return nil
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}
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// Properties.Map
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// Desc:
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//
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// Prms: mfn,
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//
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func (p *Properties) Map (mfn PropertiesMapFnc) {
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for ky,vl := range p.props {
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if !mfn(ky,vl,false) {
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return
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}
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}
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if p.ref != nil {
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for ky,vl := range p.ref.props {
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if _,hs := p.props[ky]; !hs {
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if !mfn(ky, vl, true) {
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return
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}
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}
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}
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}
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}
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