| Zack Williams | e940c7a | 2019-08-21 14:25:39 -0700 | [diff] [blame^] | 1 | package reflect2 |
| 2 | |
| 3 | import ( |
| 4 | "reflect" |
| 5 | "unsafe" |
| 6 | ) |
| 7 | |
| 8 | type UnsafeMapType struct { |
| 9 | unsafeType |
| 10 | pKeyRType unsafe.Pointer |
| 11 | pElemRType unsafe.Pointer |
| 12 | } |
| 13 | |
| 14 | func newUnsafeMapType(cfg *frozenConfig, type1 reflect.Type) MapType { |
| 15 | return &UnsafeMapType{ |
| 16 | unsafeType: *newUnsafeType(cfg, type1), |
| 17 | pKeyRType: unpackEFace(reflect.PtrTo(type1.Key())).data, |
| 18 | pElemRType: unpackEFace(reflect.PtrTo(type1.Elem())).data, |
| 19 | } |
| 20 | } |
| 21 | |
| 22 | func (type2 *UnsafeMapType) IsNil(obj interface{}) bool { |
| 23 | if obj == nil { |
| 24 | return true |
| 25 | } |
| 26 | objEFace := unpackEFace(obj) |
| 27 | assertType("Type.IsNil argument 1", type2.ptrRType, objEFace.rtype) |
| 28 | return type2.UnsafeIsNil(objEFace.data) |
| 29 | } |
| 30 | |
| 31 | func (type2 *UnsafeMapType) UnsafeIsNil(ptr unsafe.Pointer) bool { |
| 32 | if ptr == nil { |
| 33 | return true |
| 34 | } |
| 35 | return *(*unsafe.Pointer)(ptr) == nil |
| 36 | } |
| 37 | |
| 38 | func (type2 *UnsafeMapType) LikePtr() bool { |
| 39 | return true |
| 40 | } |
| 41 | |
| 42 | func (type2 *UnsafeMapType) Indirect(obj interface{}) interface{} { |
| 43 | objEFace := unpackEFace(obj) |
| 44 | assertType("MapType.Indirect argument 1", type2.ptrRType, objEFace.rtype) |
| 45 | return type2.UnsafeIndirect(objEFace.data) |
| 46 | } |
| 47 | |
| 48 | func (type2 *UnsafeMapType) UnsafeIndirect(ptr unsafe.Pointer) interface{} { |
| 49 | return packEFace(type2.rtype, *(*unsafe.Pointer)(ptr)) |
| 50 | } |
| 51 | |
| 52 | func (type2 *UnsafeMapType) Key() Type { |
| 53 | return type2.cfg.Type2(type2.Type.Key()) |
| 54 | } |
| 55 | |
| 56 | func (type2 *UnsafeMapType) MakeMap(cap int) interface{} { |
| 57 | return packEFace(type2.ptrRType, type2.UnsafeMakeMap(cap)) |
| 58 | } |
| 59 | |
| 60 | func (type2 *UnsafeMapType) UnsafeMakeMap(cap int) unsafe.Pointer { |
| 61 | m := makeMapWithSize(type2.rtype, cap) |
| 62 | return unsafe.Pointer(&m) |
| 63 | } |
| 64 | |
| 65 | func (type2 *UnsafeMapType) SetIndex(obj interface{}, key interface{}, elem interface{}) { |
| 66 | objEFace := unpackEFace(obj) |
| 67 | assertType("MapType.SetIndex argument 1", type2.ptrRType, objEFace.rtype) |
| 68 | keyEFace := unpackEFace(key) |
| 69 | assertType("MapType.SetIndex argument 2", type2.pKeyRType, keyEFace.rtype) |
| 70 | elemEFace := unpackEFace(elem) |
| 71 | assertType("MapType.SetIndex argument 3", type2.pElemRType, elemEFace.rtype) |
| 72 | type2.UnsafeSetIndex(objEFace.data, keyEFace.data, elemEFace.data) |
| 73 | } |
| 74 | |
| 75 | func (type2 *UnsafeMapType) UnsafeSetIndex(obj unsafe.Pointer, key unsafe.Pointer, elem unsafe.Pointer) { |
| 76 | mapassign(type2.rtype, *(*unsafe.Pointer)(obj), key, elem) |
| 77 | } |
| 78 | |
| 79 | func (type2 *UnsafeMapType) TryGetIndex(obj interface{}, key interface{}) (interface{}, bool) { |
| 80 | objEFace := unpackEFace(obj) |
| 81 | assertType("MapType.TryGetIndex argument 1", type2.ptrRType, objEFace.rtype) |
| 82 | keyEFace := unpackEFace(key) |
| 83 | assertType("MapType.TryGetIndex argument 2", type2.pKeyRType, keyEFace.rtype) |
| 84 | elemPtr := type2.UnsafeGetIndex(objEFace.data, keyEFace.data) |
| 85 | if elemPtr == nil { |
| 86 | return nil, false |
| 87 | } |
| 88 | return packEFace(type2.pElemRType, elemPtr), true |
| 89 | } |
| 90 | |
| 91 | func (type2 *UnsafeMapType) GetIndex(obj interface{}, key interface{}) interface{} { |
| 92 | objEFace := unpackEFace(obj) |
| 93 | assertType("MapType.GetIndex argument 1", type2.ptrRType, objEFace.rtype) |
| 94 | keyEFace := unpackEFace(key) |
| 95 | assertType("MapType.GetIndex argument 2", type2.pKeyRType, keyEFace.rtype) |
| 96 | elemPtr := type2.UnsafeGetIndex(objEFace.data, keyEFace.data) |
| 97 | return packEFace(type2.pElemRType, elemPtr) |
| 98 | } |
| 99 | |
| 100 | func (type2 *UnsafeMapType) UnsafeGetIndex(obj unsafe.Pointer, key unsafe.Pointer) unsafe.Pointer { |
| 101 | return mapaccess(type2.rtype, *(*unsafe.Pointer)(obj), key) |
| 102 | } |
| 103 | |
| 104 | func (type2 *UnsafeMapType) Iterate(obj interface{}) MapIterator { |
| 105 | objEFace := unpackEFace(obj) |
| 106 | assertType("MapType.Iterate argument 1", type2.ptrRType, objEFace.rtype) |
| 107 | return type2.UnsafeIterate(objEFace.data) |
| 108 | } |
| 109 | |
| 110 | func (type2 *UnsafeMapType) UnsafeIterate(obj unsafe.Pointer) MapIterator { |
| 111 | return &UnsafeMapIterator{ |
| 112 | hiter: mapiterinit(type2.rtype, *(*unsafe.Pointer)(obj)), |
| 113 | pKeyRType: type2.pKeyRType, |
| 114 | pElemRType: type2.pElemRType, |
| 115 | } |
| 116 | } |
| 117 | |
| 118 | type UnsafeMapIterator struct { |
| 119 | *hiter |
| 120 | pKeyRType unsafe.Pointer |
| 121 | pElemRType unsafe.Pointer |
| 122 | } |
| 123 | |
| 124 | func (iter *UnsafeMapIterator) HasNext() bool { |
| 125 | return iter.key != nil |
| 126 | } |
| 127 | |
| 128 | func (iter *UnsafeMapIterator) Next() (interface{}, interface{}) { |
| 129 | key, elem := iter.UnsafeNext() |
| 130 | return packEFace(iter.pKeyRType, key), packEFace(iter.pElemRType, elem) |
| 131 | } |
| 132 | |
| 133 | func (iter *UnsafeMapIterator) UnsafeNext() (unsafe.Pointer, unsafe.Pointer) { |
| 134 | key := iter.key |
| 135 | elem := iter.value |
| 136 | mapiternext(iter.hiter) |
| 137 | return key, elem |
| 138 | } |