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annotationSet.go
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/
annotationSet.go
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package lingo
import (
"sort"
"unsafe"
"github.com/xtgo/set"
)
type AnnotationSet []*Annotation
func (as AnnotationSet) Len() int { return len(as) }
func (as AnnotationSet) Swap(i, j int) { as[i], as[j] = as[j], as[i] }
func (as AnnotationSet) Less(i, j int) bool {
return uintptr(unsafe.Pointer(as[i])) < uintptr(unsafe.Pointer(as[j]))
}
func (as AnnotationSet) Set() AnnotationSet {
sort.Sort(as)
n := set.Uniq(as)
return as[:n]
}
func (as AnnotationSet) Contains(a *Annotation) bool {
if as.Index(a) == len(as) {
return false
}
return true
}
func (as AnnotationSet) Index(a *Annotation) int {
for i, an := range as {
if an == a {
return i
}
}
return len(as)
}
func (as AnnotationSet) Add(a *Annotation) AnnotationSet {
if as.Contains(a) {
return as
}
as = append(as, a)
return as
}