github.com/sbrajchuk/go-ethereum@v1.9.7/accounts/abi/numbers.go (about)

     1  // Copyright 2015 The go-ethereum Authors
     2  // This file is part of the go-ethereum library.
     3  //
     4  // The go-ethereum library is free software: you can redistribute it and/or modify
     5  // it under the terms of the GNU Lesser General Public License as published by
     6  // the Free Software Foundation, either version 3 of the License, or
     7  // (at your option) any later version.
     8  //
     9  // The go-ethereum library is distributed in the hope that it will be useful,
    10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    12  // GNU Lesser General Public License for more details.
    13  //
    14  // You should have received a copy of the GNU Lesser General Public License
    15  // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
    16  
    17  package abi
    18  
    19  import (
    20  	"math/big"
    21  	"reflect"
    22  
    23  	"github.com/ethereum/go-ethereum/common"
    24  	"github.com/ethereum/go-ethereum/common/math"
    25  )
    26  
    27  var (
    28  	bigT      = reflect.TypeOf(&big.Int{})
    29  	derefbigT = reflect.TypeOf(big.Int{})
    30  	uint8T    = reflect.TypeOf(uint8(0))
    31  	uint16T   = reflect.TypeOf(uint16(0))
    32  	uint32T   = reflect.TypeOf(uint32(0))
    33  	uint64T   = reflect.TypeOf(uint64(0))
    34  	int8T     = reflect.TypeOf(int8(0))
    35  	int16T    = reflect.TypeOf(int16(0))
    36  	int32T    = reflect.TypeOf(int32(0))
    37  	int64T    = reflect.TypeOf(int64(0))
    38  	addressT  = reflect.TypeOf(common.Address{})
    39  )
    40  
    41  // U256 converts a big Int into a 256bit EVM number.
    42  func U256(n *big.Int) []byte {
    43  	return math.PaddedBigBytes(math.U256(n), 32)
    44  }