forked from cerc-io/laconicd-deprecated
68 lines
2.2 KiB
Go
68 lines
2.2 KiB
Go
// Copyright 2021 Evmos Foundation
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// This file is part of Evmos' Ethermint library.
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//
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// The Ethermint 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 Ethermint 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 Ethermint library. If not, see https://github.com/evmos/ethermint/blob/main/LICENSE
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package ante
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import (
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"math/big"
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errorsmod "cosmossdk.io/errors"
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sdk "github.com/cosmos/cosmos-sdk/types"
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)
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// GasWantedDecorator keeps track of the gasWanted amount on the current block in transient store
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// for BaseFee calculation.
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// NOTE: This decorator does not perform any validation
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type GasWantedDecorator struct {
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evmKeeper EVMKeeper
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feeMarketKeeper FeeMarketKeeper
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}
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// NewGasWantedDecorator creates a new NewGasWantedDecorator
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func NewGasWantedDecorator(
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evmKeeper EVMKeeper,
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feeMarketKeeper FeeMarketKeeper,
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) GasWantedDecorator {
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return GasWantedDecorator{
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evmKeeper,
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feeMarketKeeper,
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}
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}
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func (gwd GasWantedDecorator) AnteHandle(ctx sdk.Context, tx sdk.Tx, simulate bool, next sdk.AnteHandler) (newCtx sdk.Context, err error) {
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chainCfg := gwd.evmKeeper.GetChainConfig(ctx)
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ethCfg := chainCfg.EthereumConfig(gwd.evmKeeper.ChainID())
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blockHeight := big.NewInt(ctx.BlockHeight())
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isLondon := ethCfg.IsLondon(blockHeight)
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feeTx, ok := tx.(sdk.FeeTx)
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if !ok || !isLondon {
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return next(ctx, tx, simulate)
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}
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gasWanted := feeTx.GetGas()
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isBaseFeeEnabled := gwd.feeMarketKeeper.GetBaseFeeEnabled(ctx)
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// Add total gasWanted to cumulative in block transientStore in FeeMarket module
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if isBaseFeeEnabled {
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if _, err := gwd.feeMarketKeeper.AddTransientGasWanted(ctx, gasWanted); err != nil {
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return ctx, errorsmod.Wrapf(err, "failed to add gas wanted to transient store")
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}
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}
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return next(ctx, tx, simulate)
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}
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