mirror of https://github.com/poanetwork/quorum.git
66 lines
2.1 KiB
Go
66 lines
2.1 KiB
Go
// 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 abi
|
|
|
|
import (
|
|
"reflect"
|
|
|
|
"github.com/ethereum/go-ethereum/common"
|
|
)
|
|
|
|
// packBytesSlice packs the given bytes as [L, V] as the canonical representation
|
|
// bytes slice
|
|
func packBytesSlice(bytes []byte, l int) []byte {
|
|
len := packNum(reflect.ValueOf(l))
|
|
return append(len, common.RightPadBytes(bytes, (l+31)/32*32)...)
|
|
}
|
|
|
|
// packElement packs the given reflect value according to the abi specification in
|
|
// t.
|
|
func packElement(t Type, reflectValue reflect.Value) []byte {
|
|
switch t.T {
|
|
case IntTy, UintTy:
|
|
return packNum(reflectValue)
|
|
case StringTy:
|
|
return packBytesSlice([]byte(reflectValue.String()), reflectValue.Len())
|
|
case AddressTy:
|
|
if reflectValue.Kind() == reflect.Array {
|
|
reflectValue = mustArrayToByteSlice(reflectValue)
|
|
}
|
|
|
|
return common.LeftPadBytes(reflectValue.Bytes(), 32)
|
|
case BoolTy:
|
|
if reflectValue.Bool() {
|
|
return common.LeftPadBytes(common.Big1.Bytes(), 32)
|
|
} else {
|
|
return common.LeftPadBytes(common.Big0.Bytes(), 32)
|
|
}
|
|
case BytesTy:
|
|
if reflectValue.Kind() == reflect.Array {
|
|
reflectValue = mustArrayToByteSlice(reflectValue)
|
|
}
|
|
return packBytesSlice(reflectValue.Bytes(), reflectValue.Len())
|
|
case FixedBytesTy:
|
|
if reflectValue.Kind() == reflect.Array {
|
|
reflectValue = mustArrayToByteSlice(reflectValue)
|
|
}
|
|
|
|
return common.RightPadBytes(reflectValue.Bytes(), 32)
|
|
}
|
|
panic("abi: fatal error")
|
|
}
|