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utils.go
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utils.go
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// Copyright 2022, Specular contributors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package proof
import (
"strings"
"github.com/mantlenetworkio/mantle/l2geth/common"
"github.com/mantlenetworkio/mantle/l2geth/core/vm"
"github.com/mantlenetworkio/mantle/l2geth/params"
)
func GetAccountProof(
db vm.StateDB,
address common.Address,
) (*MPTProof, error) {
accountProof, err := db.GetProof(address)
if err != nil {
return nil, err
}
return &MPTProof{accountProof}, nil
}
func GetStorageProof(
db vm.StateDB,
address common.Address,
key common.Hash,
) (*MPTProof, *MPTProof, error) {
accountProof, err := db.GetProof(address)
if err != nil {
return nil, nil, err
}
storageProof, err := db.GetStorageProof(address, key)
if err != nil {
return nil, nil, err
}
return &MPTProof{accountProof}, &MPTProof{storageProof}, nil
}
func calcCellNum(offset, size uint64) uint64 {
return (offset+size+31)/32 - offset/32
}
func IsStackError(err error) bool {
if err == nil {
return false
}
return strings.HasPrefix(err.Error(), "stack")
}
func IsStopTokenError(err error) bool {
if err == nil {
return false
}
return err.Error() == "stop token"
}
func precompile(rules params.Rules, addr common.Address) (vm.PrecompiledContract, bool) {
var precompiles map[common.Address]vm.PrecompiledContract
switch {
case rules.IsBerlin:
precompiles = vm.PrecompiledContractsBerlin
case rules.IsIstanbul:
precompiles = vm.PrecompiledContractsIstanbul
case rules.IsByzantium:
precompiles = vm.PrecompiledContractsByzantium
default:
precompiles = vm.PrecompiledContractsHomestead
}
p, ok := precompiles[addr]
return p, ok
}
func isEnvironmentalOp(opcode vm.OpCode) bool {
return opcode == vm.ADDRESS ||
opcode == vm.ORIGIN ||
opcode == vm.CALLER ||
opcode == vm.CALLVALUE ||
opcode == vm.CODESIZE ||
opcode == vm.CALLDATASIZE ||
opcode == vm.GASPRICE ||
opcode == vm.BLOCKHASH ||
opcode == vm.COINBASE ||
opcode == vm.TIMESTAMP ||
opcode == vm.NUMBER ||
opcode == vm.DIFFICULTY ||
opcode == vm.GASLIMIT ||
opcode == vm.CHAINID
}