diff options
Diffstat (limited to 'common/hexutil/hexutil.go')
| -rw-r--r-- | common/hexutil/hexutil.go | 25 |
1 files changed, 15 insertions, 10 deletions
diff --git a/common/hexutil/hexutil.go b/common/hexutil/hexutil.go index 6b128ae36..582a67c22 100644 --- a/common/hexutil/hexutil.go +++ b/common/hexutil/hexutil.go @@ -32,7 +32,6 @@ package hexutil import ( "encoding/hex" - "errors" "fmt" "math/big" "strconv" @@ -41,17 +40,23 @@ import ( const uintBits = 32 << (uint64(^uint(0)) >> 63) var ( - ErrEmptyString = errors.New("empty hex string") - ErrMissingPrefix = errors.New("missing 0x prefix for hex data") - ErrSyntax = errors.New("invalid hex") - ErrEmptyNumber = errors.New("hex number has no digits after 0x") - ErrLeadingZero = errors.New("hex number has leading zero digits after 0x") - ErrOddLength = errors.New("hex string has odd length") - ErrUint64Range = errors.New("hex number does not fit into 64 bits") - ErrUintRange = fmt.Errorf("hex number does not fit into %d bits", uintBits) - ErrBig256Range = errors.New("hex number does not fit into 256 bits") + ErrEmptyString = &decError{"empty hex string"} + ErrSyntax = &decError{"invalid hex string"} + ErrMissingPrefix = &decError{"hex string without 0x prefix"} + ErrOddLength = &decError{"hex string of odd length"} + ErrEmptyNumber = &decError{"hex string \"0x\""} + ErrLeadingZero = &decError{"hex number with leading zero digits"} + ErrUint64Range = &decError{"hex number > 64 bits"} + ErrUintRange = &decError{fmt.Sprintf("hex number > %d bits", uintBits)} + ErrBig256Range = &decError{"hex number > 256 bits"} ) +type decError struct{ msg string } + +func (err decError) Error() string { + return string(err.msg) +} + // Decode decodes a hex string with 0x prefix. func Decode(input string) ([]byte, error) { if len(input) == 0 { |