solvar/main.go

48 lines
1.2 KiB
Go

/*
* This file is part of solvar. (https://git.redxen.eu/caskd/solvar)
* Copyright (c) 2022 Alex-David Denes
*
* solvar 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
* any later version.
*
* solvar 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 solvar. If not, see <https://www.gnu.org/licenses/>.
*/
package solvar
type DependencyGraph struct {
ol []Object
ic idCache
}
func (d *DependencyGraph) Add(o ...Object) {
d.ol = append(d.ol, o...)
}
func (d *DependencyGraph) Solve(id Identifier) (ob [][]*Object, err error) {
rel := Relation{
T: RelationTypeNeed,
Id: id,
}
cb := make(chan callbackSolver)
go d.solveRelation(&[]*Object{}, &rel, cb)
res := <-cb
if res.e != nil {
return
}
for _, io := range res.io {
ob = append(ob, io.n)
}
return
}