// not include vertical tabs (\v).
		case ' ', '\t', '\n', '\r':
		default:
			return true
		}
	}
	return false
}

// qDecode decodes a Q encoded string.
func qDecode(s string) ([]byte, error) {
	dec := make([]byte, len(s))
	n := 0
	for i := 0; i < len(s); i++ {
		switch c := s[i]; {
		case c == '_':
			dec[n] = ' '
		case c == '=':

	errShort   = fmt.Errorf("truncated instruction")
	errUnknown = fmt.Errorf("unknown instruction")
)

var decoderCover []bool

// Decode decodes the leading bytes in src as a single instruction.
func Decode(src []byte, mode Mode) (inst Inst, err error) {
	if mode != ModeARM {
		return Inst{}, errMode
	}
	if len(src) < 4 {
		return Inst{}, errShort
	}

	if decoderCover == nil {

}

// These are the errors returned by Decode.
var (
	ErrInvalidMode  = errors.New("invalid x86 mode in Decode")
	ErrTruncated    = errors.New("truncated instruction")
	ErrUnrecognized = errors.New("unrecognized instruction")
)

// decoderCover records coverage information for which parts
// of the byte code have been executed.
var decoderCover []bool

// Decode decodes the leading bytes in src as a single instruction.

// destination. It's used when calling Decode with a nil value.
func (dec *Decoder) ignoreSingle(engine *decEngine) {
	state := dec.newDecoderState(&dec.buf)
	defer dec.freeDecoderState(state)
	state.fieldnum = singletonField
	delta := int(state.decodeUint())
	if delta != 0 {
		errorf("decode: corrupted data: non-zero delta for singleton")
	}
	instr := &engine.instr[singletonField]

	rv := reflect.ValueOf(v)
	if rv.Kind() != reflect.Pointer || rv.IsNil() {
		return &InvalidUnmarshalError{reflect.TypeOf(v)}
	}

	d.scan.reset()
	d.scanWhile(scanSkipSpace)
	// We decode rv not rv.Elem because the Unmarshaler interface
	// test must be applied at the top level of the value.
	err := d.value(rv)
	if err != nil {
		return d.addErrorContext(err)
	}
	return d.savedError
}

	in, out any
}

var ignoreTests = []ignoreTest{
	// Decode normal struct into an empty struct
	{&struct{ A int }{23}, &struct{}{}},
	// Decode normal struct into a nil.
	{&struct{ A int }{23}, nil},
	// Decode singleton string into a nil.
	{"hello, world", nil},
	// Decode singleton slice into a nil.
	{[]int{1, 2, 3, 4}, nil},
	// Decode struct containing an interface into a nil.

        when:
        decode([] as byte[]) { Decoder decoder ->
            decoder.readBinary()
        }

        then:
        thrown(EOFException)
    }

    def "can encode and decode long #value"() {
        expect:
        def bytes = encode { Encoder encoder ->
            encoder.writeLong(value)
        }
        decode(bytes) { Decoder decoder ->

                if (info == null) { /* YOYOYO */
                    info = new DfsEnumStruct();
                }
                info.decode(_src);

            }
            int _totalentriesp = _src.dec_ndr_long();
            if (_totalentriesp != 0) {
                totalentries.decode(_src);

            }
            retval = (int)_src.dec_ndr_long();
        }
    }

	if err != nil {
		t.Fatal("encode error:", err)
	}
	dec := NewDecoder(b)
	x := new(GobTestValueEncDec)
	err = dec.Decode(x)
	if err != nil {
		t.Fatal("decode error:", err)
	}
	if x.G.s != "HIJKL" {
		t.Errorf("expected `HIJKL` got %s", x.G.s)
	}
}

// GobEncode/Decode should work even if the value is
// more indirect than the receiver.
func TestGobEncoderIndirectField(t *testing.T) {

                _src = _src.deferred;
                root_directory.decode(_src);

            }
            if (_object_namep != 0) {
                if (object_name == null) { /* YOYOYO */
                    object_name = new rpc.unicode_string();
                }
                _src = _src.deferred;
                object_name.decode(_src);

            }
            if (_security_quality_of_servicep != 0) {