cbfb271541
Prior to this commit all objects in the Collection data structures
were boxed in an Go interface{} which adds an extra 8 bytes per
object and requires assertion to unbox.
Go 1.18, released early 2022, introduced generics, which allows
for storing the objects without boxing. This provides a extra
boost in performance and lower in-memory footprint.
74 lines
1.2 KiB
Go
74 lines
1.2 KiB
Go
package collection
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import (
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"encoding/json"
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"github.com/tidwall/geojson"
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"github.com/tidwall/geojson/geometry"
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)
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type String string
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var _ geojson.Object = String("")
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func (s String) Spatial() geojson.Spatial {
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return geojson.EmptySpatial{}
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}
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func (s String) ForEach(iter func(geom geojson.Object) bool) bool {
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return iter(s)
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}
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func (s String) Empty() bool {
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return true
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}
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func (s String) Valid() bool {
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return false
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}
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func (s String) Rect() geometry.Rect {
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return geometry.Rect{}
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}
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func (s String) Center() geometry.Point {
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return geometry.Point{}
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}
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func (s String) AppendJSON(dst []byte) []byte {
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data, _ := json.Marshal(string(s))
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return append(dst, data...)
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}
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func (s String) String() string {
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return string(s)
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}
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func (s String) JSON() string {
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return string(s.AppendJSON(nil))
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}
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func (s String) MarshalJSON() ([]byte, error) {
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return s.AppendJSON(nil), nil
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}
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func (s String) Within(obj geojson.Object) bool {
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return false
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}
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func (s String) Contains(obj geojson.Object) bool {
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return false
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}
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func (s String) Intersects(obj geojson.Object) bool {
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return false
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}
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func (s String) NumPoints() int {
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return 0
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}
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func (s String) Distance(obj geojson.Object) float64 {
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return 0
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}
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