pulumi/pkg/resource/graph/resource_set.go

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// Copyright 2016-2018, Pulumi Corporation.
//
// 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 graph
import "github.com/pulumi/pulumi/pkg/resource"
// ResourceSet represents a set of Resources.
type ResourceSet map[*resource.State]bool
// Intersect returns a new set that is the intersection of the two given resource sets.
func (s ResourceSet) Intersect(other ResourceSet) ResourceSet {
newSet := make(ResourceSet)
for key := range s {
if other[key] {
newSet[key] = true
}
}
return newSet
}