ml
48 lines
1014 B
Go
48 lines
1014 B
Go
package resource
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import (
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"fmt"
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"sort"
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)
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// ID represents an integer key of resources.
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type ID uint16
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// Value returns the numerical value of the identifier.
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func (id ID) Value() uint16 {
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return uint16(id)
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}
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// Plus adds the given offset and returns the resulting ID.
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func (id ID) Plus(offset int) ID {
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return ID(int(id) + offset)
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}
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// String returns the textual representation.
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func (id ID) String() string {
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return fmt.Sprintf("%04X", uint16(id))
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}
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// IDMarkerMap is used to collect IDs.
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type IDMarkerMap struct {
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ids map[ID]struct{}
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}
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// Add adds the given ID to the map.
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func (marker *IDMarkerMap) Add(id ID) {
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if marker.ids == nil {
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marker.ids = make(map[ID]struct{})
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}
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marker.ids[id] = struct{}{}
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}
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// ToList converts the map to a de-duplicated list.
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func (marker IDMarkerMap) ToList() []ID {
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result := make([]ID, 0, len(marker.ids))
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for id := range marker.ids {
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result = append(result, id)
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}
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sort.Slice(result, func(a, b int) bool { return result[a] < result[b] })
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return result
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}
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