diff options
Diffstat (limited to 'vendor/github.com/modern-go/reflect2/unsafe_type.go')
-rw-r--r-- | vendor/github.com/modern-go/reflect2/unsafe_type.go | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/vendor/github.com/modern-go/reflect2/unsafe_type.go b/vendor/github.com/modern-go/reflect2/unsafe_type.go new file mode 100644 index 000000000..13941716c --- /dev/null +++ b/vendor/github.com/modern-go/reflect2/unsafe_type.go @@ -0,0 +1,85 @@ +package reflect2 + +import ( + "reflect" + "unsafe" +) + +type unsafeType struct { + safeType + rtype unsafe.Pointer + ptrRType unsafe.Pointer +} + +func newUnsafeType(cfg *frozenConfig, type1 reflect.Type) *unsafeType { + return &unsafeType{ + safeType: safeType{ + Type: type1, + cfg: cfg, + }, + rtype: unpackEFace(type1).data, + ptrRType: unpackEFace(reflect.PtrTo(type1)).data, + } +} + +func (type2 *unsafeType) Set(obj interface{}, val interface{}) { + objEFace := unpackEFace(obj) + assertType("Type.Set argument 1", type2.ptrRType, objEFace.rtype) + valEFace := unpackEFace(val) + assertType("Type.Set argument 2", type2.ptrRType, valEFace.rtype) + type2.UnsafeSet(objEFace.data, valEFace.data) +} + +func (type2 *unsafeType) UnsafeSet(ptr unsafe.Pointer, val unsafe.Pointer) { + typedmemmove(type2.rtype, ptr, val) +} + +func (type2 *unsafeType) IsNil(obj interface{}) bool { + objEFace := unpackEFace(obj) + assertType("Type.IsNil argument 1", type2.ptrRType, objEFace.rtype) + return type2.UnsafeIsNil(objEFace.data) +} + +func (type2 *unsafeType) UnsafeIsNil(ptr unsafe.Pointer) bool { + return ptr == nil +} + +func (type2 *unsafeType) UnsafeNew() unsafe.Pointer { + return unsafe_New(type2.rtype) +} + +func (type2 *unsafeType) New() interface{} { + return packEFace(type2.ptrRType, type2.UnsafeNew()) +} + +func (type2 *unsafeType) PackEFace(ptr unsafe.Pointer) interface{} { + return packEFace(type2.ptrRType, ptr) +} + +func (type2 *unsafeType) RType() uintptr { + return uintptr(type2.rtype) +} + +func (type2 *unsafeType) Indirect(obj interface{}) interface{} { + objEFace := unpackEFace(obj) + assertType("Type.Indirect argument 1", type2.ptrRType, objEFace.rtype) + return type2.UnsafeIndirect(objEFace.data) +} + +func (type2 *unsafeType) UnsafeIndirect(obj unsafe.Pointer) interface{} { + return packEFace(type2.rtype, obj) +} + +func (type2 *unsafeType) LikePtr() bool { + return false +} + +func assertType(where string, expectRType unsafe.Pointer, actualRType unsafe.Pointer) { + if expectRType != actualRType { + expectType := reflect.TypeOf(0) + (*iface)(unsafe.Pointer(&expectType)).data = expectRType + actualType := reflect.TypeOf(0) + (*iface)(unsafe.Pointer(&actualType)).data = actualRType + panic(where + ": expect " + expectType.String() + ", actual " + actualType.String()) + } +} |