504 lines
20 KiB
Go
504 lines
20 KiB
Go
// Copyright 2017 The go-ethereum Authors
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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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{
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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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{
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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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"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",
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"foobar",
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common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000006666f6f6261720000000000000000000000000000000000000000000000000000"),
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},
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{
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"string[]",
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[]string{"hello", "foobar"},
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common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000002" + // len(array) = 2
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"0000000000000000000000000000000000000000000000000000000000000040" + // offset 64 to i = 0
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"0000000000000000000000000000000000000000000000000000000000000080" + // offset 128 to i = 1
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"0000000000000000000000000000000000000000000000000000000000000005" + // len(str[0]) = 5
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"68656c6c6f000000000000000000000000000000000000000000000000000000" + // str[0]
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"0000000000000000000000000000000000000000000000000000000000000006" + // len(str[1]) = 6
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"666f6f6261720000000000000000000000000000000000000000000000000000"), // str[1]
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},
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{
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"string[2]",
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[]string{"hello", "foobar"},
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common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000040" + // offset to i = 0
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"0000000000000000000000000000000000000000000000000000000000000080" + // offset to i = 1
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"0000000000000000000000000000000000000000000000000000000000000005" + // len(str[0]) = 5
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"68656c6c6f000000000000000000000000000000000000000000000000000000" + // str[0]
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"0000000000000000000000000000000000000000000000000000000000000006" + // len(str[1]) = 6
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"666f6f6261720000000000000000000000000000000000000000000000000000"), // str[1]
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},
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{
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"bytes32[][]",
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[][]common.Hash{{{1}, {2}}, {{3}, {4}, {5}}},
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common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000002" + // len(array) = 2
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"0000000000000000000000000000000000000000000000000000000000000040" + // offset 64 to i = 0
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"00000000000000000000000000000000000000000000000000000000000000a0" + // offset 160 to i = 1
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"0000000000000000000000000000000000000000000000000000000000000002" + // len(array[0]) = 2
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"0100000000000000000000000000000000000000000000000000000000000000" + // array[0][0]
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"0200000000000000000000000000000000000000000000000000000000000000" + // array[0][1]
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"0000000000000000000000000000000000000000000000000000000000000003" + // len(array[1]) = 3
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"0300000000000000000000000000000000000000000000000000000000000000" + // array[1][0]
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"0400000000000000000000000000000000000000000000000000000000000000" + // array[1][1]
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"0500000000000000000000000000000000000000000000000000000000000000"), // array[1][2]
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},
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{
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"bytes32[][2]",
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[][]common.Hash{{{1}, {2}}, {{3}, {4}, {5}}},
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common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000040" + // offset 64 to i = 0
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"00000000000000000000000000000000000000000000000000000000000000a0" + // offset 160 to i = 1
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"0000000000000000000000000000000000000000000000000000000000000002" + // len(array[0]) = 2
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"0100000000000000000000000000000000000000000000000000000000000000" + // array[0][0]
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"0200000000000000000000000000000000000000000000000000000000000000" + // array[0][1]
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"0000000000000000000000000000000000000000000000000000000000000003" + // len(array[1]) = 3
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"0300000000000000000000000000000000000000000000000000000000000000" + // array[1][0]
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"0400000000000000000000000000000000000000000000000000000000000000" + // array[1][1]
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"0500000000000000000000000000000000000000000000000000000000000000"), // array[1][2]
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},
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{
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"bytes32[3][2]",
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[][]common.Hash{{{1}, {2}, {3}}, {{3}, {4}, {5}}},
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common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000" + // array[0][0]
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"0200000000000000000000000000000000000000000000000000000000000000" + // array[0][1]
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"0300000000000000000000000000000000000000000000000000000000000000" + // array[0][2]
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"0300000000000000000000000000000000000000000000000000000000000000" + // array[1][0]
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"0400000000000000000000000000000000000000000000000000000000000000" + // array[1][1]
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"0500000000000000000000000000000000000000000000000000000000000000"), // array[1][2]
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},
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} {
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typ, err := NewType(test.typ)
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if err != nil {
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t.Fatalf("%v failed. Unexpected parse error: %v", i, err)
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}
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output, err := typ.pack(reflect.ValueOf(test.input))
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if err != nil {
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t.Fatalf("%v failed. Unexpected pack error: %v", i, err)
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}
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if !bytes.Equal(output, test.output) {
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t.Errorf("input %d for typ: %v failed. Expected bytes: '%x' Got: '%x'", i, typ.String(), test.output, output)
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}
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}
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}
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func TestMethodPack(t *testing.T) {
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abi, err := JSON(strings.NewReader(jsondata2))
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if err != nil {
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t.Fatal(err)
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}
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sig := abi.Methods["slice"].Id()
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sig = append(sig, common.LeftPadBytes([]byte{1}, 32)...)
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sig = append(sig, common.LeftPadBytes([]byte{2}, 32)...)
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packed, err := abi.Pack("slice", []uint32{1, 2})
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if err != nil {
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t.Error(err)
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}
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if !bytes.Equal(packed, sig) {
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t.Errorf("expected %x got %x", sig, packed)
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}
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var addrA, addrB = common.Address{1}, common.Address{2}
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sig = abi.Methods["sliceAddress"].Id()
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sig = append(sig, common.LeftPadBytes([]byte{32}, 32)...)
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sig = append(sig, common.LeftPadBytes([]byte{2}, 32)...)
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sig = append(sig, common.LeftPadBytes(addrA[:], 32)...)
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sig = append(sig, common.LeftPadBytes(addrB[:], 32)...)
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packed, err = abi.Pack("sliceAddress", []common.Address{addrA, addrB})
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if err != nil {
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t.Fatal(err)
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}
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if !bytes.Equal(packed, sig) {
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t.Errorf("expected %x got %x", sig, packed)
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}
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var addrC, addrD = common.Address{3}, common.Address{4}
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sig = abi.Methods["sliceMultiAddress"].Id()
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sig = append(sig, common.LeftPadBytes([]byte{64}, 32)...)
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sig = append(sig, common.LeftPadBytes([]byte{160}, 32)...)
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sig = append(sig, common.LeftPadBytes([]byte{2}, 32)...)
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sig = append(sig, common.LeftPadBytes(addrA[:], 32)...)
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sig = append(sig, common.LeftPadBytes(addrB[:], 32)...)
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sig = append(sig, common.LeftPadBytes([]byte{2}, 32)...)
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sig = append(sig, common.LeftPadBytes(addrC[:], 32)...)
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sig = append(sig, common.LeftPadBytes(addrD[:], 32)...)
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packed, err = abi.Pack("sliceMultiAddress", []common.Address{addrA, addrB}, []common.Address{addrC, addrD})
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if err != nil {
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t.Fatal(err)
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}
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if !bytes.Equal(packed, sig) {
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t.Errorf("expected %x got %x", sig, packed)
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}
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sig = abi.Methods["slice256"].Id()
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sig = append(sig, common.LeftPadBytes([]byte{1}, 32)...)
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sig = append(sig, common.LeftPadBytes([]byte{2}, 32)...)
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packed, err = abi.Pack("slice256", []*big.Int{big.NewInt(1), big.NewInt(2)})
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if err != nil {
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t.Error(err)
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}
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if !bytes.Equal(packed, sig) {
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t.Errorf("expected %x got %x", sig, packed)
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}
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}
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func TestPackNumber(t *testing.T) {
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tests := []struct {
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value reflect.Value
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packed []byte
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}{
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// Protocol limits
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{reflect.ValueOf(0), common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000000")},
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{reflect.ValueOf(1), common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000001")},
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{reflect.ValueOf(-1), common.Hex2Bytes("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff")},
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// Type corner cases
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{reflect.ValueOf(uint8(math.MaxUint8)), common.Hex2Bytes("00000000000000000000000000000000000000000000000000000000000000ff")},
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{reflect.ValueOf(uint16(math.MaxUint16)), common.Hex2Bytes("000000000000000000000000000000000000000000000000000000000000ffff")},
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{reflect.ValueOf(uint32(math.MaxUint32)), common.Hex2Bytes("00000000000000000000000000000000000000000000000000000000ffffffff")},
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{reflect.ValueOf(uint64(math.MaxUint64)), common.Hex2Bytes("000000000000000000000000000000000000000000000000ffffffffffffffff")},
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{reflect.ValueOf(int8(math.MaxInt8)), common.Hex2Bytes("000000000000000000000000000000000000000000000000000000000000007f")},
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{reflect.ValueOf(int16(math.MaxInt16)), common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000007fff")},
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{reflect.ValueOf(int32(math.MaxInt32)), common.Hex2Bytes("000000000000000000000000000000000000000000000000000000007fffffff")},
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{reflect.ValueOf(int64(math.MaxInt64)), common.Hex2Bytes("0000000000000000000000000000000000000000000000007fffffffffffffff")},
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{reflect.ValueOf(int8(math.MinInt8)), common.Hex2Bytes("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff80")},
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{reflect.ValueOf(int16(math.MinInt16)), common.Hex2Bytes("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff8000")},
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{reflect.ValueOf(int32(math.MinInt32)), common.Hex2Bytes("ffffffffffffffffffffffffffffffffffffffffffffffffffffffff80000000")},
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{reflect.ValueOf(int64(math.MinInt64)), common.Hex2Bytes("ffffffffffffffffffffffffffffffffffffffffffffffff8000000000000000")},
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}
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for i, tt := range tests {
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packed := packNum(tt.value)
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if !bytes.Equal(packed, tt.packed) {
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t.Errorf("test %d: pack mismatch: have %x, want %x", i, packed, tt.packed)
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}
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}
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}
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