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66 lines
2.0 KiB
66 lines
2.0 KiB
6 years ago
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package reflect2
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import (
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"reflect"
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"unsafe"
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)
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type UnsafeArrayType struct {
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unsafeType
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elemRType unsafe.Pointer
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pElemRType unsafe.Pointer
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elemSize uintptr
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likePtr bool
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}
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func newUnsafeArrayType(cfg *frozenConfig, type1 reflect.Type) *UnsafeArrayType {
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return &UnsafeArrayType{
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unsafeType: *newUnsafeType(cfg, type1),
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elemRType: unpackEFace(type1.Elem()).data,
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pElemRType: unpackEFace(reflect.PtrTo(type1.Elem())).data,
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elemSize: type1.Elem().Size(),
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likePtr: likePtrType(type1),
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}
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}
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func (type2 *UnsafeArrayType) LikePtr() bool {
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return type2.likePtr
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}
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func (type2 *UnsafeArrayType) Indirect(obj interface{}) interface{} {
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objEFace := unpackEFace(obj)
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assertType("Type.Indirect argument 1", type2.ptrRType, objEFace.rtype)
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return type2.UnsafeIndirect(objEFace.data)
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}
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func (type2 *UnsafeArrayType) UnsafeIndirect(ptr unsafe.Pointer) interface{} {
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if type2.likePtr {
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return packEFace(type2.rtype, *(*unsafe.Pointer)(ptr))
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}
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return packEFace(type2.rtype, ptr)
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}
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func (type2 *UnsafeArrayType) SetIndex(obj interface{}, index int, elem interface{}) {
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objEFace := unpackEFace(obj)
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assertType("ArrayType.SetIndex argument 1", type2.ptrRType, objEFace.rtype)
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elemEFace := unpackEFace(elem)
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assertType("ArrayType.SetIndex argument 3", type2.pElemRType, elemEFace.rtype)
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type2.UnsafeSetIndex(objEFace.data, index, elemEFace.data)
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}
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func (type2 *UnsafeArrayType) UnsafeSetIndex(obj unsafe.Pointer, index int, elem unsafe.Pointer) {
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elemPtr := arrayAt(obj, index, type2.elemSize, "i < s.Len")
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typedmemmove(type2.elemRType, elemPtr, elem)
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}
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func (type2 *UnsafeArrayType) GetIndex(obj interface{}, index int) interface{} {
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objEFace := unpackEFace(obj)
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assertType("ArrayType.GetIndex argument 1", type2.ptrRType, objEFace.rtype)
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elemPtr := type2.UnsafeGetIndex(objEFace.data, index)
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return packEFace(type2.pElemRType, elemPtr)
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}
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func (type2 *UnsafeArrayType) UnsafeGetIndex(obj unsafe.Pointer, index int) unsafe.Pointer {
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return arrayAt(obj, index, type2.elemSize, "i < s.Len")
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}
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