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go/src/themaru/vendor/github.com/modern-go/reflect2/unsafe_eface.go 1.27 KB
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  package reflect2
  
  import (
  	"reflect"
  	"unsafe"
  )
  
  type eface struct {
  	rtype unsafe.Pointer
  	data  unsafe.Pointer
  }
  
  func unpackEFace(obj interface{}) *eface {
  	return (*eface)(unsafe.Pointer(&obj))
  }
  
  func packEFace(rtype unsafe.Pointer, data unsafe.Pointer) interface{} {
  	var i interface{}
  	e := (*eface)(unsafe.Pointer(&i))
  	e.rtype = rtype
  	e.data = data
  	return i
  }
  
  type UnsafeEFaceType struct {
  	unsafeType
  }
  
  func newUnsafeEFaceType(cfg *frozenConfig, type1 reflect.Type) *UnsafeEFaceType {
  	return &UnsafeEFaceType{
  		unsafeType: *newUnsafeType(cfg, type1),
  	}
  }
  
  func (type2 *UnsafeEFaceType) 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 *UnsafeEFaceType) UnsafeIsNil(ptr unsafe.Pointer) bool {
  	if ptr == nil {
  		return true
  	}
  	return unpackEFace(*(*interface{})(ptr)).data == nil
  }
  
  func (type2 *UnsafeEFaceType) Indirect(obj interface{}) interface{} {
  	objEFace := unpackEFace(obj)
  	assertType("Type.Indirect argument 1", type2.ptrRType, objEFace.rtype)
  	return type2.UnsafeIndirect(objEFace.data)
  }
  
  func (type2 *UnsafeEFaceType) UnsafeIndirect(ptr unsafe.Pointer) interface{} {
  	return *(*interface{})(ptr)
  }