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fieldwrappers.go
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fieldwrappers.go
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/*
* === This file is part of ALICE O² ===
*
* Copyright 2018-2020 CERN and copyright holders of ALICE O².
* Author: Teo Mrnjavac <teo.mrnjavac@cern.ch>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* In applying this license CERN does not waive the privileges and
* immunities granted to it by virtue of its status as an
* Intergovernmental Organization or submit itself to any jurisdiction.
*/
package template
type Field interface {
Get() string
Set(value string)
}
type PointerWrapper struct {
field *string
}
func WrapPointer(field *string) Field {
return &PointerWrapper{field: field}
}
func (t *PointerWrapper) Get() string {
return *t.field
}
func (t *PointerWrapper) Set(value string) {
*t.field = value
}
type GetterFunc func() string
type SetterFunc func(value string)
type GenericWrapper struct {
Getter GetterFunc
Setter SetterFunc
}
func (t *GenericWrapper) Get() string {
return t.Getter()
}
func (t *GenericWrapper) Set(value string) {
t.Setter(value)
}
func WrapGeneric(getterF GetterFunc, setterF SetterFunc) Field {
return &GenericWrapper{
Getter: getterF,
Setter: setterF,
}
}
func WrapMapItems(items map[string]string) Fields {
fields := make(Fields, 0)
for k, _ := range items {
key := k // we need a local copy for the Getter/Setter closures
fields = append(fields, &GenericWrapper{
Getter: func() string {
return items[key]
},
Setter: func(value string) {
items[key] = value
},
})
}
return fields
}
func WrapSliceItems(items []string) Fields {
fields := make(Fields, 0)
for i, _ := range items {
index := i // we need a local copy for the Getter/Setter closures
fields = append(fields, &GenericWrapper{
Getter: func() string {
return items[index]
},
Setter: func(value string) {
items[index] = value
},
})
}
return fields
}