forked from wgroeneveld/go-jamming
41 lines
604 B
Go
41 lines
604 B
Go
package common
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type EmptySetVal struct{}
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var member EmptySetVal
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type Set struct {
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data map[string]EmptySetVal
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}
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func NewSet() *Set {
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return &Set{
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data: map[string]EmptySetVal{},
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}
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}
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func (set *Set) Add(val string) {
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set.data[val] = member
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}
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func (set *Set) Del(val string) {
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delete(set.data, val)
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}
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func (set *Set) Len() int {
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return len(set.data)
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}
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func (set *Set) HasKey(key string) bool {
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_, exists := set.data[key]
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return exists
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}
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func (set *Set) Keys() []string {
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keys := make([]string, 0, len(set.data))
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for key := range set.data {
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keys = append(keys, key)
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}
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return keys
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}
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