unsafe_struct.go raw

   1  package reflect2
   2  
   3  import (
   4  	"reflect"
   5  	"unsafe"
   6  )
   7  
   8  type UnsafeStructType struct {
   9  	unsafeType
  10  	likePtr bool
  11  }
  12  
  13  func newUnsafeStructType(cfg *frozenConfig, type1 reflect.Type) *UnsafeStructType {
  14  	return &UnsafeStructType{
  15  		unsafeType: *newUnsafeType(cfg, type1),
  16  		likePtr:    likePtrType(type1),
  17  	}
  18  }
  19  
  20  func (type2 *UnsafeStructType) LikePtr() bool {
  21  	return type2.likePtr
  22  }
  23  
  24  func (type2 *UnsafeStructType) Indirect(obj interface{}) interface{} {
  25  	objEFace := unpackEFace(obj)
  26  	assertType("Type.Indirect argument 1", type2.ptrRType, objEFace.rtype)
  27  	return type2.UnsafeIndirect(objEFace.data)
  28  }
  29  
  30  func (type2 *UnsafeStructType) UnsafeIndirect(ptr unsafe.Pointer) interface{} {
  31  	if type2.likePtr {
  32  		return packEFace(type2.rtype, *(*unsafe.Pointer)(ptr))
  33  	}
  34  	return packEFace(type2.rtype, ptr)
  35  }
  36  
  37  func (type2 *UnsafeStructType) FieldByName(name string) StructField {
  38  	structField, found := type2.Type.FieldByName(name)
  39  	if !found {
  40  		return nil
  41  	}
  42  	return newUnsafeStructField(type2, structField)
  43  }
  44  
  45  func (type2 *UnsafeStructType) Field(i int) StructField {
  46  	return newUnsafeStructField(type2, type2.Type.Field(i))
  47  }
  48  
  49  func (type2 *UnsafeStructType) FieldByIndex(index []int) StructField {
  50  	return newUnsafeStructField(type2, type2.Type.FieldByIndex(index))
  51  }
  52  
  53  func (type2 *UnsafeStructType) FieldByNameFunc(match func(string) bool) StructField {
  54  	structField, found := type2.Type.FieldByNameFunc(match)
  55  	if !found {
  56  		panic("field match condition not found in " + type2.Type.String())
  57  	}
  58  	return newUnsafeStructField(type2, structField)
  59  }
  60