core/types: use package hexutil for JSON handling

1 files changed, 0 insertions, 108 deletions

diff --git a/core/types/json.go b/core/types/json.go
deleted file mode 100644
index d2718a96d..000000000
--- a/core/types/json.go
+++ /dev/null
@@ -1,108 +0,0 @@
-// Copyright 2016 The go-ethereum Authors
-// This file is part of the go-ethereum library.
-//
-// The go-ethereum library is free software: you can redistribute it and/or modify
-// it under the terms of the GNU Lesser General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// The go-ethereum library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU Lesser General Public License for more details.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
-
-package types
-
-import (
-	"encoding/hex"
-	"fmt"
-	"math/big"
-)
-
-// JSON unmarshaling utilities.
-
-type hexBytes []byte
-
-func (b *hexBytes) MarshalJSON() ([]byte, error) {
-	if b != nil {
-		return []byte(fmt.Sprintf(`"0x%x"`, []byte(*b))), nil
-	}
-	return nil, nil
-}
-
-func (b *hexBytes) UnmarshalJSON(input []byte) error {
-	if len(input) < 2 || input[0] != '"' || input[len(input)-1] != '"' {
-		return fmt.Errorf("cannot unmarshal non-string into hexBytes")
-	}
-	input = input[1 : len(input)-1]
-	if len(input) < 2 || input[0] != '0' || input[1] != 'x' {
-		return fmt.Errorf("missing 0x prefix in hexBytes input %q", input)
-	}
-	dec := make(hexBytes, (len(input)-2)/2)
-	if _, err := hex.Decode(dec, input[2:]); err != nil {
-		return err
-	}
-	*b = dec
-	return nil
-}
-
-type hexBig big.Int
-
-func (b *hexBig) MarshalJSON() ([]byte, error) {
-	if b != nil {
-		return []byte(fmt.Sprintf(`"0x%x"`, (*big.Int)(b))), nil
-	}
-	return nil, nil
-}
-
-func (b *hexBig) UnmarshalJSON(input []byte) error {
-	raw, err := checkHexNumber(input)
-	if err != nil {
-		return err
-	}
-	dec, ok := new(big.Int).SetString(string(raw), 16)
-	if !ok {
-		return fmt.Errorf("invalid hex number")
-	}
-	*b = (hexBig)(*dec)
-	return nil
-}
-
-type hexUint64 uint64
-
-func (b *hexUint64) MarshalJSON() ([]byte, error) {
-	if b != nil {
-		return []byte(fmt.Sprintf(`"0x%x"`, *(*uint64)(b))), nil
-	}
-	return nil, nil
-}
-
-func (b *hexUint64) UnmarshalJSON(input []byte) error {
-	raw, err := checkHexNumber(input)
-	if err != nil {
-		return err
-	}
-	_, err = fmt.Sscanf(string(raw), "%x", b)
-	return err
-}
-
-func checkHexNumber(input []byte) (raw []byte, err error) {
-	if len(input) < 2 || input[0] != '"' || input[len(input)-1] != '"' {
-		return nil, fmt.Errorf("cannot unmarshal non-string into hex number")
-	}
-	input = input[1 : len(input)-1]
-	if len(input) < 2 || input[0] != '0' || input[1] != 'x' {
-		return nil, fmt.Errorf("missing 0x prefix in hex number input %q", input)
-	}
-	if len(input) == 2 {
-		return nil, fmt.Errorf("empty hex number")
-	}
-	raw = input[2:]
-	if len(raw)%2 != 0 {
-		raw = append([]byte{'0'}, raw...)
-	}
-	return raw, nil
-}