44 lines
771 B
Go
44 lines
771 B
Go
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package addrs
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// Set represents a set of addresses of types that implement UniqueKeyer.
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type Set map[UniqueKey]UniqueKeyer
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func (s Set) Has(addr UniqueKeyer) bool {
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_, exists := s[addr.UniqueKey()]
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return exists
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}
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func (s Set) Add(addr UniqueKeyer) {
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s[addr.UniqueKey()] = addr
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}
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func (s Set) Remove(addr UniqueKeyer) {
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delete(s, addr.UniqueKey())
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}
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func (s Set) Union(other Set) Set {
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ret := make(Set)
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for k, addr := range s {
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ret[k] = addr
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}
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for k, addr := range other {
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ret[k] = addr
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}
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return ret
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}
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func (s Set) Intersection(other Set) Set {
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ret := make(Set)
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for k, addr := range s {
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if _, exists := other[k]; exists {
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ret[k] = addr
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}
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}
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for k, addr := range other {
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if _, exists := s[k]; exists {
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ret[k] = addr
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}
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}
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return ret
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}
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