diff options
Diffstat (limited to 'vendor/github.com/modern-go/reflect2/unsafe_map.go')
-rw-r--r-- | vendor/github.com/modern-go/reflect2/unsafe_map.go | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/vendor/github.com/modern-go/reflect2/unsafe_map.go b/vendor/github.com/modern-go/reflect2/unsafe_map.go new file mode 100644 index 000000000..f2e76e6bb --- /dev/null +++ b/vendor/github.com/modern-go/reflect2/unsafe_map.go @@ -0,0 +1,138 @@ +package reflect2 + +import ( + "reflect" + "unsafe" +) + +type UnsafeMapType struct { + unsafeType + pKeyRType unsafe.Pointer + pElemRType unsafe.Pointer +} + +func newUnsafeMapType(cfg *frozenConfig, type1 reflect.Type) MapType { + return &UnsafeMapType{ + unsafeType: *newUnsafeType(cfg, type1), + pKeyRType: unpackEFace(reflect.PtrTo(type1.Key())).data, + pElemRType: unpackEFace(reflect.PtrTo(type1.Elem())).data, + } +} + +func (type2 *UnsafeMapType) IsNil(obj interface{}) bool { + if obj == nil { + return true + } + objEFace := unpackEFace(obj) + assertType("Type.IsNil argument 1", type2.ptrRType, objEFace.rtype) + return type2.UnsafeIsNil(objEFace.data) +} + +func (type2 *UnsafeMapType) UnsafeIsNil(ptr unsafe.Pointer) bool { + if ptr == nil { + return true + } + return *(*unsafe.Pointer)(ptr) == nil +} + +func (type2 *UnsafeMapType) LikePtr() bool { + return true +} + +func (type2 *UnsafeMapType) Indirect(obj interface{}) interface{} { + objEFace := unpackEFace(obj) + assertType("MapType.Indirect argument 1", type2.ptrRType, objEFace.rtype) + return type2.UnsafeIndirect(objEFace.data) +} + +func (type2 *UnsafeMapType) UnsafeIndirect(ptr unsafe.Pointer) interface{} { + return packEFace(type2.rtype, *(*unsafe.Pointer)(ptr)) +} + +func (type2 *UnsafeMapType) Key() Type { + return type2.cfg.Type2(type2.Type.Key()) +} + +func (type2 *UnsafeMapType) MakeMap(cap int) interface{} { + return packEFace(type2.ptrRType, type2.UnsafeMakeMap(cap)) +} + +func (type2 *UnsafeMapType) UnsafeMakeMap(cap int) unsafe.Pointer { + m := makeMapWithSize(type2.rtype, cap) + return unsafe.Pointer(&m) +} + +func (type2 *UnsafeMapType) SetIndex(obj interface{}, key interface{}, elem interface{}) { + objEFace := unpackEFace(obj) + assertType("MapType.SetIndex argument 1", type2.ptrRType, objEFace.rtype) + keyEFace := unpackEFace(key) + assertType("MapType.SetIndex argument 2", type2.pKeyRType, keyEFace.rtype) + elemEFace := unpackEFace(elem) + assertType("MapType.SetIndex argument 3", type2.pElemRType, elemEFace.rtype) + type2.UnsafeSetIndex(objEFace.data, keyEFace.data, elemEFace.data) +} + +func (type2 *UnsafeMapType) UnsafeSetIndex(obj unsafe.Pointer, key unsafe.Pointer, elem unsafe.Pointer) { + mapassign(type2.rtype, *(*unsafe.Pointer)(obj), key, elem) +} + +func (type2 *UnsafeMapType) TryGetIndex(obj interface{}, key interface{}) (interface{}, bool) { + objEFace := unpackEFace(obj) + assertType("MapType.TryGetIndex argument 1", type2.ptrRType, objEFace.rtype) + keyEFace := unpackEFace(key) + assertType("MapType.TryGetIndex argument 2", type2.pKeyRType, keyEFace.rtype) + elemPtr := type2.UnsafeGetIndex(objEFace.data, keyEFace.data) + if elemPtr == nil { + return nil, false + } + return packEFace(type2.pElemRType, elemPtr), true +} + +func (type2 *UnsafeMapType) GetIndex(obj interface{}, key interface{}) interface{} { + objEFace := unpackEFace(obj) + assertType("MapType.GetIndex argument 1", type2.ptrRType, objEFace.rtype) + keyEFace := unpackEFace(key) + assertType("MapType.GetIndex argument 2", type2.pKeyRType, keyEFace.rtype) + elemPtr := type2.UnsafeGetIndex(objEFace.data, keyEFace.data) + return packEFace(type2.pElemRType, elemPtr) +} + +func (type2 *UnsafeMapType) UnsafeGetIndex(obj unsafe.Pointer, key unsafe.Pointer) unsafe.Pointer { + return mapaccess(type2.rtype, *(*unsafe.Pointer)(obj), key) +} + +func (type2 *UnsafeMapType) Iterate(obj interface{}) MapIterator { + objEFace := unpackEFace(obj) + assertType("MapType.Iterate argument 1", type2.ptrRType, objEFace.rtype) + return type2.UnsafeIterate(objEFace.data) +} + +func (type2 *UnsafeMapType) UnsafeIterate(obj unsafe.Pointer) MapIterator { + return &UnsafeMapIterator{ + hiter: mapiterinit(type2.rtype, *(*unsafe.Pointer)(obj)), + pKeyRType: type2.pKeyRType, + pElemRType: type2.pElemRType, + } +} + +type UnsafeMapIterator struct { + *hiter + pKeyRType unsafe.Pointer + pElemRType unsafe.Pointer +} + +func (iter *UnsafeMapIterator) HasNext() bool { + return iter.key != nil +} + +func (iter *UnsafeMapIterator) Next() (interface{}, interface{}) { + key, elem := iter.UnsafeNext() + return packEFace(iter.pKeyRType, key), packEFace(iter.pElemRType, elem) +} + +func (iter *UnsafeMapIterator) UnsafeNext() (unsafe.Pointer, unsafe.Pointer) { + key := iter.key + elem := iter.value + mapiternext(iter.hiter) + return key, elem +} |