frostfs-contract/common/storage.go

package common

import (
	"github.com/nspcc-dev/neo-go/pkg/interop/convert"
	"github.com/nspcc-dev/neo-go/pkg/interop/native/std"
	"github.com/nspcc-dev/neo-go/pkg/interop/storage"
)

// SetSerialized serializes data and puts it into contract storage.
func SetSerialized(ctx storage.Context, key interface{}, value interface{}) {
	data := std.Serialize(value)
	storage.Put(ctx, key, data)
}

// ToFixedWidth64 converts x to bytes such that numbers <= math.MaxUint64
// have constant with of 9.
func ToFixedWidth64(x int) []byte {
	data := convert.ToBytes(x)
	if x < 0 || len(data) >= 9 {
		return data
	}
	return append(data, make([]byte, 9-len(data))...)
}

// FromFixedWidth64 is a reverse function for ToFixedWidth64.
func FromFixedWidth64(x []byte) int {
	return convert.ToInteger(x)
}