prysm-pulse/encoding/bytesutil/bytes_legacy.go
Preston Van Loon 1e3a55c6a6
Refactor bytesutil, add support for go1.20 slice to array conversions (#11838)
* Refactor bytes.go and bytes_test.go to smaller files, introduce go1.17 and go1.20 style of array copy

* rename bytes_go17.go to reflect that it works on any version 1.19 and below

* fix PadTo when len is exactly the size

* Add go1.20 style conversions

* Forgot another int method

Co-authored-by: Radosław Kapka <rkapka@wp.pl>
Co-authored-by: prylabs-bulldozer[bot] <58059840+prylabs-bulldozer[bot]@users.noreply.github.com>
2023-01-10 16:41:01 +00:00

62 lines
1.6 KiB
Go

//go:build !go1.20
// +build !go1.20
package bytesutil
// These methods use copy() to convert a byte slice to a fixed size array.
// This approach is used for go1.19 and below.
// ToBytes4 is a convenience method for converting a byte slice to a fix
// sized 4 byte array. This method will truncate the input if it is larger
// than 4 bytes.
func ToBytes4(x []byte) [4]byte {
var y [4]byte
copy(y[:], x)
return y
}
// ToBytes20 is a convenience method for converting a byte slice to a fix
// sized 20 byte array. This method will truncate the input if it is larger
// than 20 bytes.
func ToBytes20(x []byte) [20]byte {
var y [20]byte
copy(y[:], x)
return y
}
// ToBytes32 is a convenience method for converting a byte slice to a fix
// sized 32 byte array. This method will truncate the input if it is larger
// than 32 bytes.
func ToBytes32(x []byte) [32]byte {
var y [32]byte
copy(y[:], x)
return y
}
// ToBytes48 is a convenience method for converting a byte slice to a fix
// sized 48 byte array. This method will truncate the input if it is larger
// than 48 bytes.
func ToBytes48(x []byte) [48]byte {
var y [48]byte
copy(y[:], x)
return y
}
// ToBytes64 is a convenience method for converting a byte slice to a fix
// sized 64 byte array. This method will truncate the input if it is larger
// than 64 bytes.
func ToBytes64(x []byte) [64]byte {
var y [64]byte
copy(y[:], x)
return y
}
// ToBytes96 is a convenience method for converting a byte slice to a fix
// sized 96 byte array. This method will truncate the input if it is larger
// than 96 bytes.
func ToBytes96(x []byte) [96]byte {
var y [96]byte
copy(y[:], x)
return y
}