336a38081a
Done with: ack '2020+' -l | xargs sed -i -e 's/2020+/2021+/g' Checked manually with: git add -p Hello to future James from 2022, and Happy Hacking!
65 lines
1.7 KiB
Go
65 lines
1.7 KiB
Go
// Mgmt
|
|
// Copyright (C) 2013-2021+ James Shubin and the project contributors
|
|
// Written by James Shubin <james@shubin.ca> and the project contributors
|
|
//
|
|
// 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/>.
|
|
|
|
package core
|
|
|
|
import (
|
|
"fmt"
|
|
|
|
"github.com/purpleidea/mgmt/lang/funcs/simplepoly"
|
|
"github.com/purpleidea/mgmt/lang/types"
|
|
)
|
|
|
|
func init() {
|
|
simplepoly.Register("len", []*types.FuncValue{
|
|
{
|
|
T: types.NewType("func(str) int"),
|
|
V: Len,
|
|
},
|
|
{
|
|
T: types.NewType("func([]variant) int"),
|
|
V: Len,
|
|
},
|
|
{
|
|
T: types.NewType("func(map{variant: variant}) int"),
|
|
V: Len,
|
|
},
|
|
// TODO: should we add support for struct or func lengths?
|
|
})
|
|
}
|
|
|
|
// Len returns the number of elements in a list or the number of key pairs in a
|
|
// map. It can operate on either of these types.
|
|
func Len(input []types.Value) (types.Value, error) {
|
|
var length int
|
|
switch k := input[0].Type().Kind; k {
|
|
case types.KindStr:
|
|
length = len(input[0].Str())
|
|
case types.KindList:
|
|
length = len(input[0].List())
|
|
case types.KindMap:
|
|
length = len(input[0].Map())
|
|
|
|
default:
|
|
return nil, fmt.Errorf("unsupported kind: %+v", k)
|
|
}
|
|
|
|
return &types.IntValue{
|
|
V: int64(length),
|
|
}, nil
|
|
}
|