github.com/night-codes/go-json@v0.9.15/internal/decoder/anonymous_field.go (about)

     1  package decoder
     2  
     3  import (
     4  	"unsafe"
     5  
     6  	"github.com/night-codes/go-json/internal/runtime"
     7  )
     8  
     9  type anonymousFieldDecoder struct {
    10  	structType *runtime.Type
    11  	offset     uintptr
    12  	dec        Decoder
    13  }
    14  
    15  func newAnonymousFieldDecoder(structType *runtime.Type, offset uintptr, dec Decoder) *anonymousFieldDecoder {
    16  	return &anonymousFieldDecoder{
    17  		structType: structType,
    18  		offset:     offset,
    19  		dec:        dec,
    20  	}
    21  }
    22  
    23  func (d *anonymousFieldDecoder) DecodeStream(s *Stream, depth int64, p unsafe.Pointer) error {
    24  	if *(*unsafe.Pointer)(p) == nil {
    25  		*(*unsafe.Pointer)(p) = unsafe_New(d.structType)
    26  	}
    27  	p = *(*unsafe.Pointer)(p)
    28  	return d.dec.DecodeStream(s, depth, unsafe.Pointer(uintptr(p)+d.offset))
    29  }
    30  
    31  func (d *anonymousFieldDecoder) Decode(ctx *RuntimeContext, cursor, depth int64, p unsafe.Pointer) (int64, error) {
    32  	if *(*unsafe.Pointer)(p) == nil {
    33  		*(*unsafe.Pointer)(p) = unsafe_New(d.structType)
    34  	}
    35  	p = *(*unsafe.Pointer)(p)
    36  	return d.dec.Decode(ctx, cursor, depth, unsafe.Pointer(uintptr(p)+d.offset))
    37  }