if instr.indir > 0 {
		value = encIndirect(value, instr.indir)
	}
	if valid(value) {
		instr.op(instr, state, value)
	}
}

// encodeStruct encodes a single struct value.
func (enc *Encoder) encodeStruct(b *encBuffer, engine *encEngine, value reflect.Value) {
	if !valid(value) {
		return
	}
	state := enc.newEncoderState(b)
	defer enc.freeEncoderState(state)
	state.fieldnum = -1