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handler_array.go
62 lines (50 loc) · 1.49 KB
/
handler_array.go
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package jsonpack
import (
"reflect"
"unsafe"
ibuf "github.com/arloliu/jsonpack/buffer"
"github.com/modern-go/reflect2"
)
type arrayOp struct{}
func (p *arrayOp) decodeStruct(buf *ibuf.Buffer, opNode *structOperation, ptr unsafe.Pointer) error {
var err error
arrayType := opNode.opType.(*reflect2.UnsafeArrayType)
itemOp := opNode.children[0]
length, _ := buf.ReadVarUint()
for i := 0; i < int(length); i++ {
itemPtr := arrayType.UnsafeGetIndex(ptr, i)
err = itemOp.handler.decodeStruct(buf, itemOp, itemPtr)
if err != nil {
return err
}
}
return nil
}
func (p *arrayOp) encodeStruct(buf *ibuf.Buffer, opNode *structOperation, ptr unsafe.Pointer) error {
var err error
arrayType := opNode.opType.(*reflect2.UnsafeArrayType)
length := arrayType.Len()
itemOp := opNode.children[0]
buf.WriteVarUint(uint64(length))
for i := 0; i < length; i++ {
itemPtr := arrayType.UnsafeGetIndex(ptr, i)
// dereference pointer
if itemOp.isPtrType {
itemPtr = derefPtr(itemPtr)
}
err = itemOp.handler.encodeStruct(buf, itemOp, itemPtr)
if err != nil {
return err
}
}
return nil
}
func (p *arrayOp) encodeDynamic(buf *ibuf.Buffer, opNode *operation, data interface{}) error {
return encodeSliceTypeDynamic(buf, opNode, data)
}
func (p *arrayOp) decodeDynamic(buf *ibuf.Buffer, opNode *operation, v interface{}) (interface{}, error) {
if reflect2.TypeOf(v).Kind() == reflect.Slice {
return _sliceOp.decodeDynamic(buf, opNode, v)
}
return decodeArrayTypeDynamic(buf, opNode, v)
}