2018-02-14 13:49:11 +01:00
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// Copyright 2017 The go-ethereum Authors
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2017-06-27 03:05:33 -05:00
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package abi
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import (
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"bytes"
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"math"
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"math/big"
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"reflect"
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"strings"
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"testing"
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"github.com/ethereum/go-ethereum/common"
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)
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func TestPack(t *testing.T) {
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for i, test := range []struct {
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typ string
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input interface{}
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output []byte
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}{
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{
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"uint8",
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uint8(2),
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common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000002"),
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},
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{
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"uint8[]",
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[]uint8{1, 2},
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common.Hex2Bytes("000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000002"),
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},
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{
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"uint16",
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uint16(2),
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common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000002"),
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},
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{
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"uint16[]",
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[]uint16{1, 2},
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common.Hex2Bytes("000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000002"),
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},
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{
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"uint32",
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uint32(2),
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common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000002"),
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},
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{
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"uint32[]",
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[]uint32{1, 2},
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common.Hex2Bytes("000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000002"),
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},
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{
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"uint64",
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uint64(2),
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common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000002"),
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},
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{
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"uint64[]",
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[]uint64{1, 2},
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common.Hex2Bytes("000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000002"),
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},
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{
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"uint256",
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big.NewInt(2),
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common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000002"),
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},
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{
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"uint256[]",
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[]*big.Int{big.NewInt(1), big.NewInt(2)},
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common.Hex2Bytes("000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000002"),
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},
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{
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"int8",
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int8(2),
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common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000002"),
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},
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{
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"int8[]",
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[]int8{1, 2},
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common.Hex2Bytes("000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000002"),
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},
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{
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"int16",
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int16(2),
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common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000002"),
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},
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{
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"int16[]",
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[]int16{1, 2},
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common.Hex2Bytes("000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000002"),
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},
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{
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"int32",
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int32(2),
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common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000002"),
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},
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{
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"int32[]",
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[]int32{1, 2},
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common.Hex2Bytes("000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000002"),
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},
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{
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"int64",
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int64(2),
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common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000002"),
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},
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{
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"int64[]",
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[]int64{1, 2},
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common.Hex2Bytes("000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000002"),
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},
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{
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"int256",
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big.NewInt(2),
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common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000002"),
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},
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{
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"int256[]",
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[]*big.Int{big.NewInt(1), big.NewInt(2)},
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common.Hex2Bytes("000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000002"),
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},
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{
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"bytes1",
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[1]byte{1},
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common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
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},
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{
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"bytes2",
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[2]byte{1},
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common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
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},
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{
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"bytes3",
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[3]byte{1},
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common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
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},
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{
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"bytes4",
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[4]byte{1},
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common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
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},
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{
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"bytes5",
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[5]byte{1},
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common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
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},
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{
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"bytes6",
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[6]byte{1},
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common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
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},
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{
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"bytes7",
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[7]byte{1},
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common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
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},
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{
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"bytes8",
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[8]byte{1},
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common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
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},
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{
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"bytes9",
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[9]byte{1},
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common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
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},
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{
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"bytes10",
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[10]byte{1},
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common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
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},
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{
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"bytes11",
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[11]byte{1},
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common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
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},
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{
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"bytes12",
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[12]byte{1},
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common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
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},
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{
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"bytes13",
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[13]byte{1},
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common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
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},
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{
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"bytes14",
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[14]byte{1},
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common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
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},
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{
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"bytes15",
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[15]byte{1},
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common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
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},
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{
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"bytes16",
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[16]byte{1},
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common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
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},
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{
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"bytes17",
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[17]byte{1},
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common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
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},
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{
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"bytes18",
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[18]byte{1},
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common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
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},
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{
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"bytes19",
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[19]byte{1},
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common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
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},
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{
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"bytes20",
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[20]byte{1},
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common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
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},
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{
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"bytes21",
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[21]byte{1},
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common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
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},
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{
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"bytes22",
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[22]byte{1},
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common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
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},
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{
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"bytes23",
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[23]byte{1},
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common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
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},
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{
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"bytes24",
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[24]byte{1},
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common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
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},
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{
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"bytes24",
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[24]byte{1},
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common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
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},
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{
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"bytes25",
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[25]byte{1},
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common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
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},
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{
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"bytes26",
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[26]byte{1},
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common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
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},
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{
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"bytes27",
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[27]byte{1},
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common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
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},
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{
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"bytes28",
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[28]byte{1},
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common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
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},
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{
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"bytes29",
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[29]byte{1},
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common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
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},
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{
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"bytes30",
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[30]byte{1},
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common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
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},
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{
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"bytes31",
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[31]byte{1},
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common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
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},
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{
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"bytes32",
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[32]byte{1},
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common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
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},
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accounts/abi: Abi binding support for nested arrays, fixes #15648, including nested array unpack fix (#15676)
* accounts/abi/bind: support for multi-dim arrays
Also:
- reduce usage of regexes a bit.
- fix minor Java syntax problems
Fixes #15648
* accounts/abi/bind: Add some more documentation
* accounts/abi/bind: Improve code readability
* accounts/abi: bugfix for unpacking nested arrays
The code previously assumed the arrays/slices were always 1 level
deep. While the packing supports nested arrays (!!!).
The current code for unpacking doesn't return the "consumed" length, so
this fix had to work around that by calculating it (i.e. packing and
getting resulting length) after the unpacking of the array element.
It's far from ideal, but unpacking behaviour is fixed now.
* accounts/abi: Fix unpacking of nested arrays
Removed the temporary workaround of packing to calculate size, which was
incorrect for slice-like types anyway.
Full size of nested arrays is used now.
* accounts/abi: deeply nested array unpack test
Test unpacking of an array nested more than one level.
* accounts/abi: Add deeply nested array pack test
Same as the deep nested array unpack test, but the other way around.
* accounts/abi/bind: deeply nested arrays bind test
Test the usage of bindings that were generated
for methods with multi-dimensional (and not
just a single extra dimension, like foo[2][3])
array arguments and returns.
edit: trigger rebuild, CI failed to fetch linter module.
* accounts/abi/bind: improve array binding
wrapArray uses a regex now, and arrayBindingJava is improved.
* accounts/abi: Improve naming of element size func
The full step size for unpacking an array
is now retrieved with "getFullElemSize".
* accounts/abi: support nested nested array args
Previously, the code only considered the outer-size of the array,
ignoring the size of the contents. This was fine for most types,
but nested arrays are packed directly into it, and count towards
the total size. This resulted in arguments following a nested
array to replicate some of the binary contents of the array.
The fix: for arrays, calculate their complete contents size:
count the arg.Type.Elem.Size when Elem is an Array, and
repeat when their child is an array too, etc.
The count is the number of 32 byte elements, similar to how it
previously counted, but nested.
* accounts/abi: Test deep nested arr multi-arguments
Arguments with a deeply nested array should not cause the next arguments
to be read from the wrong position.
2018-03-04 23:24:17 +01:00
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|
|
{
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|
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|
|
"uint32[2][3][4]",
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[4][3][2]uint32{{{1, 2}, {3, 4}, {5, 6}}, {{7, 8}, {9, 10}, {11, 12}}, {{13, 14}, {15, 16}, {17, 18}}, {{19, 20}, {21, 22}, {23, 24}}},
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common.Hex2Bytes("000000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000003000000000000000000000000000000000000000000000000000000000000000400000000000000000000000000000000000000000000000000000000000000050000000000000000000000000000000000000000000000000000000000000006000000000000000000000000000000000000000000000000000000000000000700000000000000000000000000000000000000000000000000000000000000080000000000000000000000000000000000000000000000000000000000000009000000000000000000000000000000000000000000000000000000000000000a000000000000000000000000000000000000000000000000000000000000000b000000000000000000000000000000000000000000000000000000000000000c000000000000000000000000000000000000000000000000000000000000000d000000000000000000000000000000000000000000000000000000000000000e000000000000000000000000000000000000000000000000000000000000000f000000000000000000000000000000000000000000000000000000000000001000000000000000000000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000000000000000000012000000000000000000000000000000000000000000000000000000000000001300000000000000000000000000000000000000000000000000000000000000140000000000000000000000000000000000000000000000000000000000000015000000000000000000000000000000000000000000000000000000000000001600000000000000000000000000000000000000000000000000000000000000170000000000000000000000000000000000000000000000000000000000000018"),
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},
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2017-06-27 03:05:33 -05:00
|
|
|
{
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|
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|
|
"address[]",
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|
|
[]common.Address{{1}, {2}},
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common.Hex2Bytes("000000000000000000000000000000000000000000000000000000000000000200000000000000000000000001000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000"),
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},
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{
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"bytes32[]",
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[]common.Hash{{1}, {2}},
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common.Hex2Bytes("000000000000000000000000000000000000000000000000000000000000000201000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000"),
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},
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{
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|
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"function",
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[24]byte{1},
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common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
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},
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{
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"string",
|
|
|
|
|
"foobar",
|
|
|
|
|
common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000006666f6f6261720000000000000000000000000000000000000000000000000000"),
|
|
|
|
|
},
|
|
|
|
|
} {
|
|
|
|
|
typ, err := NewType(test.typ)
|
|
|
|
|
if err != nil {
|
2017-10-17 06:07:08 -05:00
|
|
|
t.Fatalf("%v failed. Unexpected parse error: %v", i, err)
|
2017-06-27 03:05:33 -05:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
output, err := typ.pack(reflect.ValueOf(test.input))
|
|
|
|
|
if err != nil {
|
2017-10-17 06:07:08 -05:00
|
|
|
t.Fatalf("%v failed. Unexpected pack error: %v", i, err)
|
2017-06-27 03:05:33 -05:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if !bytes.Equal(output, test.output) {
|
|
|
|
|
t.Errorf("%d failed. Expected bytes: '%x' Got: '%x'", i, test.output, output)
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
func TestMethodPack(t *testing.T) {
|
|
|
|
|
abi, err := JSON(strings.NewReader(jsondata2))
|
|
|
|
|
if err != nil {
|
|
|
|
|
t.Fatal(err)
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
sig := abi.Methods["slice"].Id()
|
|
|
|
|
sig = append(sig, common.LeftPadBytes([]byte{1}, 32)...)
|
|
|
|
|
sig = append(sig, common.LeftPadBytes([]byte{2}, 32)...)
|
|
|
|
|
|
|
|
|
|
packed, err := abi.Pack("slice", []uint32{1, 2})
|
|
|
|
|
if err != nil {
|
|
|
|
|
t.Error(err)
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if !bytes.Equal(packed, sig) {
|
|
|
|
|
t.Errorf("expected %x got %x", sig, packed)
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
var addrA, addrB = common.Address{1}, common.Address{2}
|
|
|
|
|
sig = abi.Methods["sliceAddress"].Id()
|
|
|
|
|
sig = append(sig, common.LeftPadBytes([]byte{32}, 32)...)
|
|
|
|
|
sig = append(sig, common.LeftPadBytes([]byte{2}, 32)...)
|
|
|
|
|
sig = append(sig, common.LeftPadBytes(addrA[:], 32)...)
|
|
|
|
|
sig = append(sig, common.LeftPadBytes(addrB[:], 32)...)
|
|
|
|
|
|
|
|
|
|
packed, err = abi.Pack("sliceAddress", []common.Address{addrA, addrB})
|
|
|
|
|
if err != nil {
|
|
|
|
|
t.Fatal(err)
|
|
|
|
|
}
|
|
|
|
|
if !bytes.Equal(packed, sig) {
|
|
|
|
|
t.Errorf("expected %x got %x", sig, packed)
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
var addrC, addrD = common.Address{3}, common.Address{4}
|
|
|
|
|
sig = abi.Methods["sliceMultiAddress"].Id()
|
|
|
|
|
sig = append(sig, common.LeftPadBytes([]byte{64}, 32)...)
|
|
|
|
|
sig = append(sig, common.LeftPadBytes([]byte{160}, 32)...)
|
|
|
|
|
sig = append(sig, common.LeftPadBytes([]byte{2}, 32)...)
|
|
|
|
|
sig = append(sig, common.LeftPadBytes(addrA[:], 32)...)
|
|
|
|
|
sig = append(sig, common.LeftPadBytes(addrB[:], 32)...)
|
|
|
|
|
sig = append(sig, common.LeftPadBytes([]byte{2}, 32)...)
|
|
|
|
|
sig = append(sig, common.LeftPadBytes(addrC[:], 32)...)
|
|
|
|
|
sig = append(sig, common.LeftPadBytes(addrD[:], 32)...)
|
|
|
|
|
|
|
|
|
|
packed, err = abi.Pack("sliceMultiAddress", []common.Address{addrA, addrB}, []common.Address{addrC, addrD})
|
|
|
|
|
if err != nil {
|
|
|
|
|
t.Fatal(err)
|
|
|
|
|
}
|
|
|
|
|
if !bytes.Equal(packed, sig) {
|
|
|
|
|
t.Errorf("expected %x got %x", sig, packed)
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
sig = abi.Methods["slice256"].Id()
|
|
|
|
|
sig = append(sig, common.LeftPadBytes([]byte{1}, 32)...)
|
|
|
|
|
sig = append(sig, common.LeftPadBytes([]byte{2}, 32)...)
|
|
|
|
|
|
|
|
|
|
packed, err = abi.Pack("slice256", []*big.Int{big.NewInt(1), big.NewInt(2)})
|
|
|
|
|
if err != nil {
|
|
|
|
|
t.Error(err)
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if !bytes.Equal(packed, sig) {
|
|
|
|
|
t.Errorf("expected %x got %x", sig, packed)
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
func TestPackNumber(t *testing.T) {
|
|
|
|
|
tests := []struct {
|
|
|
|
|
value reflect.Value
|
|
|
|
|
packed []byte
|
|
|
|
|
}{
|
|
|
|
|
// Protocol limits
|
|
|
|
|
{reflect.ValueOf(0), common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000000")},
|
|
|
|
|
{reflect.ValueOf(1), common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000001")},
|
|
|
|
|
{reflect.ValueOf(-1), common.Hex2Bytes("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff")},
|
|
|
|
|
|
|
|
|
|
// Type corner cases
|
|
|
|
|
{reflect.ValueOf(uint8(math.MaxUint8)), common.Hex2Bytes("00000000000000000000000000000000000000000000000000000000000000ff")},
|
|
|
|
|
{reflect.ValueOf(uint16(math.MaxUint16)), common.Hex2Bytes("000000000000000000000000000000000000000000000000000000000000ffff")},
|
|
|
|
|
{reflect.ValueOf(uint32(math.MaxUint32)), common.Hex2Bytes("00000000000000000000000000000000000000000000000000000000ffffffff")},
|
|
|
|
|
{reflect.ValueOf(uint64(math.MaxUint64)), common.Hex2Bytes("000000000000000000000000000000000000000000000000ffffffffffffffff")},
|
|
|
|
|
|
|
|
|
|
{reflect.ValueOf(int8(math.MaxInt8)), common.Hex2Bytes("000000000000000000000000000000000000000000000000000000000000007f")},
|
|
|
|
|
{reflect.ValueOf(int16(math.MaxInt16)), common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000007fff")},
|
|
|
|
|
{reflect.ValueOf(int32(math.MaxInt32)), common.Hex2Bytes("000000000000000000000000000000000000000000000000000000007fffffff")},
|
|
|
|
|
{reflect.ValueOf(int64(math.MaxInt64)), common.Hex2Bytes("0000000000000000000000000000000000000000000000007fffffffffffffff")},
|
|
|
|
|
|
|
|
|
|
{reflect.ValueOf(int8(math.MinInt8)), common.Hex2Bytes("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff80")},
|
|
|
|
|
{reflect.ValueOf(int16(math.MinInt16)), common.Hex2Bytes("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff8000")},
|
|
|
|
|
{reflect.ValueOf(int32(math.MinInt32)), common.Hex2Bytes("ffffffffffffffffffffffffffffffffffffffffffffffffffffffff80000000")},
|
|
|
|
|
{reflect.ValueOf(int64(math.MinInt64)), common.Hex2Bytes("ffffffffffffffffffffffffffffffffffffffffffffffff8000000000000000")},
|
|
|
|
|
}
|
|
|
|
|
for i, tt := range tests {
|
|
|
|
|
packed := packNum(tt.value)
|
|
|
|
|
if !bytes.Equal(packed, tt.packed) {
|
|
|
|
|
t.Errorf("test %d: pack mismatch: have %x, want %x", i, packed, tt.packed)
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|