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go/src/themaru/vendor/github.com/modern-go/reflect2/unsafe_iface.go 1.26 KB
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  package reflect2
  
  import (
  	"reflect"
  	"unsafe"
  )
  
  type iface struct {
  	itab *itab
  	data unsafe.Pointer
  }
  
  type itab struct {
  	ignore unsafe.Pointer
  	rtype  unsafe.Pointer
  }
  
  func IFaceToEFace(ptr unsafe.Pointer) interface{} {
  	iface := (*iface)(ptr)
  	if iface.itab == nil {
  		return nil
  	}
  	return packEFace(iface.itab.rtype, iface.data)
  }
  
  type UnsafeIFaceType struct {
  	unsafeType
  }
  
  func newUnsafeIFaceType(cfg *frozenConfig, type1 reflect.Type) *UnsafeIFaceType {
  	return &UnsafeIFaceType{
  		unsafeType: *newUnsafeType(cfg, type1),
  	}
  }
  
  func (type2 *UnsafeIFaceType) Indirect(obj interface{}) interface{} {
  	objEFace := unpackEFace(obj)
  	assertType("Type.Indirect argument 1", type2.ptrRType, objEFace.rtype)
  	return type2.UnsafeIndirect(objEFace.data)
  }
  
  func (type2 *UnsafeIFaceType) UnsafeIndirect(ptr unsafe.Pointer) interface{} {
  	return IFaceToEFace(ptr)
  }
  
  func (type2 *UnsafeIFaceType) 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 *UnsafeIFaceType) UnsafeIsNil(ptr unsafe.Pointer) bool {
  	if ptr == nil {
  		return true
  	}
  	iface := (*iface)(ptr)
  	if iface.itab == nil {
  		return true
  	}
  	return false
  }