You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
k3s/vendor/github.com/modern-go/reflect2/safe_slice.go

93 lines
2.5 KiB

package reflect2
import (
"reflect"
"unsafe"
)
type safeSliceType struct {
safeType
}
func (type2 *safeSliceType) SetIndex(obj interface{}, index int, value interface{}) {
val := reflect.ValueOf(obj).Elem()
elem := reflect.ValueOf(value).Elem()
val.Index(index).Set(elem)
}
func (type2 *safeSliceType) UnsafeSetIndex(obj unsafe.Pointer, index int, value unsafe.Pointer) {
panic("does not support unsafe operation")
}
func (type2 *safeSliceType) GetIndex(obj interface{}, index int) interface{} {
val := reflect.ValueOf(obj).Elem()
elem := val.Index(index)
ptr := reflect.New(elem.Type())
ptr.Elem().Set(elem)
return ptr.Interface()
}
func (type2 *safeSliceType) UnsafeGetIndex(obj unsafe.Pointer, index int) unsafe.Pointer {
panic("does not support unsafe operation")
}
func (type2 *safeSliceType) MakeSlice(length int, cap int) interface{} {
val := reflect.MakeSlice(type2.Type, length, cap)
ptr := reflect.New(val.Type())
ptr.Elem().Set(val)
return ptr.Interface()
}
func (type2 *safeSliceType) UnsafeMakeSlice(length int, cap int) unsafe.Pointer {
panic("does not support unsafe operation")
}
func (type2 *safeSliceType) Grow(obj interface{}, newLength int) {
oldCap := type2.Cap(obj)
oldSlice := reflect.ValueOf(obj).Elem()
delta := newLength - oldCap
deltaVals := make([]reflect.Value, delta)
newSlice := reflect.Append(oldSlice, deltaVals...)
oldSlice.Set(newSlice)
}
func (type2 *safeSliceType) UnsafeGrow(ptr unsafe.Pointer, newLength int) {
panic("does not support unsafe operation")
}
func (type2 *safeSliceType) Append(obj interface{}, elem interface{}) {
val := reflect.ValueOf(obj).Elem()
elemVal := reflect.ValueOf(elem).Elem()
newVal := reflect.Append(val, elemVal)
val.Set(newVal)
}
func (type2 *safeSliceType) UnsafeAppend(obj unsafe.Pointer, elem unsafe.Pointer) {
panic("does not support unsafe operation")
}
func (type2 *safeSliceType) SetNil(obj interface{}) {
val := reflect.ValueOf(obj).Elem()
val.Set(reflect.Zero(val.Type()))
}
func (type2 *safeSliceType) UnsafeSetNil(ptr unsafe.Pointer) {
panic("does not support unsafe operation")
}
func (type2 *safeSliceType) LengthOf(obj interface{}) int {
return reflect.ValueOf(obj).Elem().Len()
}
func (type2 *safeSliceType) UnsafeLengthOf(ptr unsafe.Pointer) int {
panic("does not support unsafe operation")
}
func (type2 *safeSliceType) Cap(obj interface{}) int {
return reflect.ValueOf(obj).Elem().Cap()
}
func (type2 *safeSliceType) UnsafeCap(ptr unsafe.Pointer) int {
panic("does not support unsafe operation")
}