github.com/aigarnetwork/aigar@v0.0.0-20191115204914-d59a6eb70f8e/accounts/abi/numbers.go (about)

     1  //  Copyright 2018 The go-ethereum Authors
     2  //  Copyright 2019 The go-aigar Authors
     3  //  This file is part of the go-aigar library.
     4  //
     5  //  The go-aigar library is free software: you can redistribute it and/or modify
     6  //  it under the terms of the GNU Lesser General Public License as published by
     7  //  the Free Software Foundation, either version 3 of the License, or
     8  //  (at your option) any later version.
     9  //
    10  //  The go-aigar library is distributed in the hope that it will be useful,
    11  //  but WITHOUT ANY WARRANTY; without even the implied warranty of
    12  //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    13  //  GNU Lesser General Public License for more details.
    14  //
    15  //  You should have received a copy of the GNU Lesser General Public License
    16  //  along with the go-aigar library. If not, see <http://www.gnu.org/licenses/>.
    17  
    18  package abi
    19  
    20  import (
    21  	"math/big"
    22  	"reflect"
    23  
    24  	"github.com/AigarNetwork/aigar/common"
    25  	"github.com/AigarNetwork/aigar/common/math"
    26  )
    27  
    28  var (
    29  	bigT      = reflect.TypeOf(&big.Int{})
    30  	derefbigT = reflect.TypeOf(big.Int{})
    31  	uint8T    = reflect.TypeOf(uint8(0))
    32  	uint16T   = reflect.TypeOf(uint16(0))
    33  	uint32T   = reflect.TypeOf(uint32(0))
    34  	uint64T   = reflect.TypeOf(uint64(0))
    35  	int8T     = reflect.TypeOf(int8(0))
    36  	int16T    = reflect.TypeOf(int16(0))
    37  	int32T    = reflect.TypeOf(int32(0))
    38  	int64T    = reflect.TypeOf(int64(0))
    39  	addressT  = reflect.TypeOf(common.Address{})
    40  )
    41  
    42  // U256 converts a big Int into a 256bit EVM number.
    43  func U256(n *big.Int) []byte {
    44  	return math.PaddedBigBytes(math.U256(n), 32)
    45  }