return singleStringClone
	}
	var seq cloneSeq
	switch typ.Kind() {
	case abi.Struct:
		buildStructCloneSeq(typ, &seq, 0)
	case abi.Array:
		buildArrayCloneSeq(typ, &seq, 0)
	}
	return seq
}

// buildStructCloneSeq populates a cloneSeq for an abi.Type that has Kind abi.Struct.
func buildStructCloneSeq(typ *abi.Type, seq *cloneSeq, baseOffset uintptr) {
	styp := typ.StructType()
	for i := range styp.Fields {