keeper

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Documentation

Overview

Copyright 2021 Evmos Foundation This file is part of Evmos' Ethermint library.

The Ethermint 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 Ethermint 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 Ethermint library. If not, see https://github.com/Helios-Chain-Labs/ethermint/blob/main/LICENSE

Copyright 2021 Evmos Foundation This file is part of Evmos' Ethermint library.

The Ethermint 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 Ethermint 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 Ethermint library. If not, see https://github.com/Helios-Chain-Labs/ethermint/blob/main/LICENSE

Copyright 2021 Evmos Foundation This file is part of Evmos' Ethermint library.

The Ethermint 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 Ethermint 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 Ethermint library. If not, see https://github.com/Helios-Chain-Labs/ethermint/blob/main/LICENSE

Copyright 2021 Evmos Foundation This file is part of Evmos' Ethermint library.

The Ethermint 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 Ethermint 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 Ethermint library. If not, see https://github.com/Helios-Chain-Labs/ethermint/blob/main/LICENSE

Copyright 2021 Evmos Foundation This file is part of Evmos' Ethermint library.

The Ethermint 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 Ethermint 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 Ethermint library. If not, see https://github.com/Helios-Chain-Labs/ethermint/blob/main/LICENSE

Copyright 2021 Evmos Foundation This file is part of Evmos' Ethermint library.

The Ethermint 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 Ethermint 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 Ethermint library. If not, see https://github.com/Helios-Chain-Labs/ethermint/blob/main/LICENSE

Copyright 2021 Evmos Foundation This file is part of Evmos' Ethermint library.

The Ethermint 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 Ethermint 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 Ethermint library. If not, see https://github.com/Helios-Chain-Labs/ethermint/blob/main/LICENSE

Copyright 2021 Evmos Foundation This file is part of Evmos' Ethermint library.

The Ethermint 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 Ethermint 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 Ethermint library. If not, see https://github.com/Helios-Chain-Labs/ethermint/blob/main/LICENSE

Copyright 2021 Evmos Foundation This file is part of Evmos' Ethermint library.

The Ethermint 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 Ethermint 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 Ethermint library. If not, see https://github.com/Helios-Chain-Labs/ethermint/blob/main/LICENSE

Copyright 2021 Evmos Foundation This file is part of Evmos' Ethermint library.

The Ethermint 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 Ethermint 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 Ethermint library. If not, see https://github.com/Helios-Chain-Labs/ethermint/blob/main/LICENSE

Copyright 2021 Evmos Foundation This file is part of Evmos' Ethermint library.

The Ethermint 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 Ethermint 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 Ethermint library. If not, see https://github.com/Helios-Chain-Labs/ethermint/blob/main/LICENSE

Copyright 2021 Evmos Foundation This file is part of Evmos' Ethermint library.

The Ethermint 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 Ethermint 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 Ethermint library. If not, see https://github.com/Helios-Chain-Labs/ethermint/blob/main/LICENSE

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func BlocksBloom 

func BlocksBloom(k *Keeper, ctx sdk.Context) *big.Int

func CheckSenderBalance 

func CheckSenderBalance(
	balance sdkmath.Int,
	tx *ethtypes.Transaction,
) error

CheckSenderBalance validates that the tx cost value is positive and that the sender has enough funds to pay for the fees and value of the transaction.

func DeductFees 

func DeductFees(bankKeeper types.BankKeeper, ctx sdk.Context, acc sdk.AccountI, fees sdk.Coins) error

DeductFees deducts fees from the given account.

func GasToRefund 

func GasToRefund(availableRefund, gasConsumed, refundQuotient uint64) uint64

GasToRefund calculates the amount of gas the state machine should refund to the sender. It is capped by the refund quotient value. Note: do not pass 0 to refundQuotient

func GetProposerAddress 

func GetProposerAddress(ctx sdk.Context, proposerAddress sdk.ConsAddress) sdk.ConsAddress

GetProposerAddress returns current block proposer's address when provided proposer address is empty.

func ToCosmosEndBlockEvent 

func ToCosmosEndBlockEvent(k *Keeper, ctx sdk.Context) tracing.CosmosEndBlockEvent

func ToCosmosStartBlockEvent 

func ToCosmosStartBlockEvent(k *Keeper, ctx sdk.Context, coinbaseAddr common.Address, blockHeader cmtproto.Header) tracing.CosmosStartBlockEvent

func VerifyFee 

func VerifyFee(
	msg *types.MsgEthereumTx,
	denom string,
	baseFee *big.Int,
	homestead, istanbul, shanghai, isCheckTx bool,
) (sdk.Coins, error)

VerifyFee is used to return the fee for the given transaction data in sdk.Coins. It checks that the gas limit is not reached, the gas limit is higher than the intrinsic gas and that the base fee is higher than the gas fee cap.

Types

type CustomContractFn 

type CustomContractFn func(sdk.Context, params.Rules) vm.PrecompiledContract

CustomContractFn defines a custom precompiled contract generator with ctx, rules and returns a precompiled contract.

type EVMBlockConfig 

type EVMBlockConfig struct {
	Params          types.Params
	FeeMarketParams feemarkettypes.Params
	ChainConfig     *params.ChainConfig
	CoinBase        common.Address
	BaseFee         *big.Int
	// not supported, always zero
	Random *common.Hash
	// unused, always zero
	Difficulty *big.Int
	// cache the big.Int version of block number, avoid repeated allocation
	BlockNumber *big.Int
	BlockTime   uint64
	Rules       params.Rules
}

EVMBlockConfig encapsulates the common parameters needed to execute an EVM message, it's cached in object store during the block execution.

type EVMConfig 

type EVMConfig struct {
	*EVMBlockConfig
	TxConfig       statedb.TxConfig
	Tracer         *cosmostracing.Hooks
	DebugTrace     bool
	Overrides      *rpctypes.StateOverride
	BlockOverrides *rpctypes.BlockOverrides
}

EVMConfig encapsulates common parameters needed to create an EVM to execute a message It's mainly to reduce the number of method parameters

type Keeper 

type Keeper struct {
	// contains filtered or unexported fields
}

Keeper grants access to the EVM module state and implements the go-ethereum StateDB interface.

func NewKeeper 

func NewKeeper(
	cdc codec.Codec,
	storeKey, objectKey storetypes.StoreKey,
	authority sdk.AccAddress,
	ak types.AccountKeeper,
	bankKeeper types.BankKeeper,
	sk types.StakingKeeper,
	fmk types.FeeMarketKeeper,
	ss paramstypes.Subspace,
	customContractFns []CustomContractFn,
) *Keeper

NewKeeper generates new evm module keeper

func (Keeper) Account 

func (k Keeper) Account(c context.Context, req *types.QueryAccountRequest) (*types.QueryAccountResponse, error)

Account implements the Query/Account gRPC method

func (*Keeper) AddBalance 

func (k *Keeper) AddBalance(ctx sdk.Context, addr sdk.AccAddress, coins sdk.Coins) error

func (Keeper) AddTransientGasUsed 

func (k Keeper) AddTransientGasUsed(ctx sdk.Context, gasUsed uint64) (uint64, error)

AddTransientGasUsed accumulate gas used by each eth msgs included in current cosmos tx.

func (*Keeper) ApplyMessage 

func (k *Keeper) ApplyMessage(ctx sdk.Context, msg *core.Message, tracer *tracers.Tracer, commit bool) (*types.MsgEthereumTxResponse, error)

ApplyMessage calls ApplyMessageWithConfig with an empty TxConfig.

func (*Keeper) ApplyMessageWithConfig 

func (k *Keeper) ApplyMessageWithConfig(
	ctx sdk.Context,
	msg *core.Message,
	cfg *EVMConfig,
	commit bool,
) (resp *types.MsgEthereumTxResponse, err error)

ApplyMessageWithConfig computes the new state by applying the given message against the existing state. If the message fails, the VM execution error with the reason will be returned to the client and the transaction won't be committed to the store.

Reverted state

The snapshot and rollback are supported by the `statedb.StateDB`.

Different Callers

It's called in three scenarios: 1. `ApplyTransaction`, in the transaction processing flow. 2. `EthCall/EthEstimateGas` grpc query handler. 3. Called by other native modules directly.

Prechecks and Preprocessing

All relevant state transition prechecks for the MsgEthereumTx are performed on the AnteHandler, prior to running the transaction against the state. The prechecks run are the following:

1. the nonce of the message caller is correct 2. caller has enough balance to cover transaction fee(gaslimit * gasprice) 3. the amount of gas required is available in the block 4. the purchased gas is enough to cover intrinsic usage 5. there is no overflow when calculating intrinsic gas 6. caller has enough balance to cover asset transfer for **topmost** call

The preprocessing steps performed by the AnteHandler are:

1. set up the initial access list (iff fork > Berlin)

Tracer parameter

It should be a `vm.Tracer` object or nil, if pass `nil`, it'll create a default one based on keeper options.

This is expected used in debug_trace* where AnteHandler is not executed

Commit parameter

If commit is true, the `StateDB` will be committed, otherwise discarded.

debugTrace parameter

The message is applied with steps to mimic AnteHandler

  1. the sender is consumed with gasLimit * gasPrice in full at the beginning of the execution and then refund with unused gas after execution.
  2. sender nonce is incremented by 1 before execution

func (*Keeper) ApplyTransaction 

func (k *Keeper) ApplyTransaction(ctx sdk.Context, msgEth *types.MsgEthereumTx) (*types.MsgEthereumTxResponse, error)

ApplyTransaction runs and attempts to perform a state transition with the given transaction (i.e. Message), that will only be persisted (committed) to the underlying KVStore if the transaction does not fail.

Gas tracking

Ethereum consumes gas according to the EVM opcodes instead of general reads and writes to store. Because of this, the state transition needs to ignore the SDK gas consumption mechanism defined by the GasKVStore and instead consume the amount of gas used by the VM execution. The amount of gas used is tracked by the EVM and returned in the execution result.

Prior to the execution, the starting tx gas meter is saved and replaced with an infinite gas meter in a new context in order to ignore the SDK gas consumption config values (read, write, has, delete). After the execution, the gas used from the message execution will be added to the starting gas consumed, taking into consideration the amount of gas returned. Finally, the context is updated with the EVM gas consumed value prior to returning.

For relevant discussion see: https://github.com/cosmos/cosmos-sdk/discussions/9072

func (Keeper) Balance 

func (k Keeper) Balance(c context.Context, req *types.QueryBalanceRequest) (*types.QueryBalanceResponse, error)

Balance implements the Query/Balance gRPC method

func (Keeper) BaseFee 

func (k Keeper) BaseFee(c context.Context, _ *types.QueryBaseFeeRequest) (*types.QueryBaseFeeResponse, error)

BaseFee implements the Query/BaseFee gRPC method

func (*Keeper) BeginBlock 

func (k *Keeper) BeginBlock(ctx sdk.Context) error

BeginBlock sets the sdk Context and EIP155 chain id to the Keeper.

func (Keeper) ChainID 

func (k Keeper) ChainID() *big.Int

ChainID returns the EIP155 chain ID for the EVM context

func (Keeper) Code 

func (k Keeper) Code(c context.Context, req *types.QueryCodeRequest) (*types.QueryCodeResponse, error)

Code implements the Query/Code gRPC method

func (Keeper) CollectTxBloom 

func (k Keeper) CollectTxBloom(ctx sdk.Context)

func (Keeper) CosmosAccount 

func (k Keeper) CosmosAccount(c context.Context, req *types.QueryCosmosAccountRequest) (*types.QueryCosmosAccountResponse, error)

func (*Keeper) DeductTxCostsFromUserBalance 

func (k *Keeper) DeductTxCostsFromUserBalance(
	ctx sdk.Context,
	fees sdk.Coins,
	from common.Address,
) error

DeductTxCostsFromUserBalance deducts the fees from the user balance. Returns an error if the specified sender address does not exist or the account balance is not sufficient.

func (*Keeper) DeleteAccount 

func (k *Keeper) DeleteAccount(ctx sdk.Context, addr common.Address) error

DeleteAccount handles contract's suicide call: - remove code - remove states - remove auth account

NOTE: balance should be cleared separately

func (*Keeper) EVMBlockConfig 

func (k *Keeper) EVMBlockConfig(ctx sdk.Context, chainID *big.Int) (*EVMBlockConfig, error)

EVMBlockConfig creates the EVMBlockConfig based on current state

func (*Keeper) EVMConfig 

func (k *Keeper) EVMConfig(ctx sdk.Context, chainID *big.Int, txHash common.Hash) (*EVMConfig, error)

EVMConfig creates the EVMConfig based on current state

func (Keeper) EmitBlockBloomEvent 

func (k Keeper) EmitBlockBloomEvent(ctx sdk.Context, bloom []byte)

EmitBlockBloomEvent emit block bloom events

func (*Keeper) EndBlock 

func (k *Keeper) EndBlock(ctx sdk.Context) error

EndBlock also retrieves the bloom filter value from the transient store and commits it to the KVStore. The EVM end block logic doesn't update the validator set, thus it returns an empty slice.

func (Keeper) EstimateGas 

func (k Keeper) EstimateGas(c context.Context, req *types.EthCallRequest) (*types.EstimateGasResponse, error)

EstimateGas implements eth_estimateGas rpc api.

func (Keeper) EthCall 

func (k Keeper) EthCall(c context.Context, req *types.EthCallRequest) (*types.MsgEthereumTxResponse, error)

EthCall implements eth_call rpc api.

func (*Keeper) EthereumTx 

func (k *Keeper) EthereumTx(goCtx context.Context, msg *types.MsgEthereumTx) (*types.MsgEthereumTxResponse, error)

EthereumTx implements the gRPC MsgServer interface. It receives a transaction which is then executed (i.e applied) against the go-ethereum EVM. The provided SDK Context is set to the Keeper so that it can implements and call the StateDB methods without receiving it as a function parameter.

func (*Keeper) ForEachStorage 

func (k *Keeper) ForEachStorage(ctx sdk.Context, addr common.Address, cb func(key, value common.Hash) bool)

ForEachStorage iterate contract storage, callback return false to break early

func (*Keeper) GetAccount 

func (k *Keeper) GetAccount(ctx sdk.Context, addr common.Address) *statedb.Account

GetAccount load nonce and codehash without balance, more efficient in cases where balance is not needed.

func (*Keeper) GetAccountOrEmpty 

func (k *Keeper) GetAccountOrEmpty(ctx sdk.Context, addr common.Address) statedb.Account

GetAccountOrEmpty returns empty account if not exist, returns error if it's not `EthAccount`

func (Keeper) GetAccountStorage 

func (k Keeper) GetAccountStorage(ctx sdk.Context, address common.Address) types.Storage

GetAccountStorage return state storage associated with an account

func (Keeper) GetAuthority 

func (k Keeper) GetAuthority() sdk.AccAddress

GetAuthority returns the x/evm module authority address

func (*Keeper) GetBalance 

func (k *Keeper) GetBalance(ctx sdk.Context, addr sdk.AccAddress, denom string) *big.Int

GetBalance load account's balance of specified denom

func (Keeper) GetBaseFee 

func (k Keeper) GetBaseFee(ctx sdk.Context, ethCfg *params.ChainConfig) *big.Int

GetBaseFee returns current base fee, return values: - `nil`: london hardfork not enabled. - `0`: london hardfork enabled but feemarket is not enabled. - `n`: both london hardfork and feemarket are enabled.

func (*Keeper) GetCode 

func (k *Keeper) GetCode(ctx sdk.Context, codeHash common.Hash) []byte

GetCode loads contract code from database, implements `statedb.Keeper` interface.

func (Keeper) GetCoinbaseAddress 

func (k Keeper) GetCoinbaseAddress(ctx sdk.Context) (common.Address, error)

GetCoinbaseAddress returns the block proposer's validator operator address.

func (*Keeper) GetEVMDenomBalance 

func (k *Keeper) GetEVMDenomBalance(ctx sdk.Context, addr common.Address) *big.Int

GetEVMDenomBalance returns the balance of evm denom

func (*Keeper) GetEthIntrinsicGas 

func (k *Keeper) GetEthIntrinsicGas(msg *core.Message, rules params.Rules, isContractCreation bool) (uint64, error)

GetEthIntrinsicGas returns the intrinsic gas cost for the transaction

func (Keeper) GetHashFn 

func (k Keeper) GetHashFn(ctx sdk.Context) vm.GetHashFunc

GetHashFn implements vm.GetHashFunc for Ethermint. It handles 3 cases:

  1. The requested height matches the current height from context (and thus same epoch number)
  2. The requested height is from an previous height from the same chain epoch
  3. The requested height is from a height greater than the latest one

func (Keeper) GetLegacyParams 

func (k Keeper) GetLegacyParams(ctx sdk.Context) types.Params

GetLegacyParams returns param set for version before migrate

func (*Keeper) GetNonce 

func (k *Keeper) GetNonce(ctx sdk.Context, addr common.Address) uint64

GetNonce returns the sequence number of an account, returns 0 if not exists.

func (Keeper) GetParams 

func (k Keeper) GetParams(ctx sdk.Context) types.Params

GetParams returns the total set of evm parameters.

func (*Keeper) GetState 

func (k *Keeper) GetState(ctx sdk.Context, addr common.Address, key common.Hash) common.Hash

GetState loads contract state from database, implements `statedb.Keeper` interface.

func (Keeper) GetTransientGasUsed 

func (k Keeper) GetTransientGasUsed(ctx sdk.Context) uint64

GetTransientGasUsed returns the gas used by current cosmos tx.

func (*Keeper) InitChainer 

func (k *Keeper) InitChainer(ctx sdk.Context)

func (Keeper) Logger 

func (k Keeper) Logger(ctx sdk.Context) log.Logger

Logger returns a module-specific logger.

func (*Keeper) NewEVM 

func (k *Keeper) NewEVM(
	ctx sdk.Context,
	msg *core.Message,
	cfg *EVMConfig,
	stateDB vm.StateDB,
) *vm.EVM

NewEVM generates a go-ethereum VM from the provided Message fields and the chain parameters (ChainConfig and module Params). It additionally sets the validator operator address as the coinbase address to make it available for the COINBASE opcode, even though there is no beneficiary of the coinbase transaction (since we're not mining).

NOTE: the RANDOM opcode is currently not supported since it requires RANDAO implementation. See https://github.com/Helios-Chain-Labs/ethermint/pull/1520#pullrequestreview-1200504697 for more information.

func (Keeper) Params 

func (k Keeper) Params(c context.Context, _ *types.QueryParamsRequest) (*types.QueryParamsResponse, error)

Params implements the Query/Params gRPC method

func (*Keeper) PostTxProcessing 

func (k *Keeper) PostTxProcessing(ctx sdk.Context, msg *core.Message, receipt *ethtypes.Receipt) error

PostTxProcessing delegate the call to the hooks. If no hook has been registered, this function returns with a `nil` error

func (*Keeper) RefundGas 

func (k *Keeper) RefundGas(ctx sdk.Context, msg *core.Message, leftoverGas uint64, denom string) error

RefundGas transfers the leftover gas to the sender of the message, caped to half of the total gas consumed in the transaction. Additionally, the function sets the total gas consumed to the value returned by the EVM execution, thus ignoring the previous intrinsic gas consumed during in the AnteHandler.

func (*Keeper) RemoveParamsCache 

func (k *Keeper) RemoveParamsCache(ctx sdk.Context)

func (*Keeper) ResetGasMeterAndConsumeGas 

func (k *Keeper) ResetGasMeterAndConsumeGas(ctx sdk.Context, gasUsed uint64)

ResetGasMeterAndConsumeGas reset first the gas meter consumed value to zero and set it back to the new value 'gasUsed'

func (*Keeper) SetAccount 

func (k *Keeper) SetAccount(ctx sdk.Context, addr common.Address, account statedb.Account) error

SetAccount updates nonce/balance/codeHash together.

func (*Keeper) SetBalance 

func (k *Keeper) SetBalance(ctx sdk.Context, addr common.Address, amount *big.Int, evmDenom string) error

SetBalance reset the account's balance, mainly used by unit tests

func (*Keeper) SetCode 

func (k *Keeper) SetCode(ctx sdk.Context, codeHash, code []byte)

SetCode set contract code, delete if code is empty.

func (*Keeper) SetHooks 

func (k *Keeper) SetHooks(eh types.EvmHooks) *Keeper

SetHooks sets the hooks for the EVM module It should be called only once during initialization, it panic if called more than once.

func (Keeper) SetParams 

func (k Keeper) SetParams(ctx sdk.Context, p types.Params) error

SetParams sets the EVM params each in their individual key for better get performance

func (*Keeper) SetState 

func (k *Keeper) SetState(ctx sdk.Context, addr common.Address, key common.Hash, value []byte)

SetState update contract storage, delete if value is empty.

func (*Keeper) SetTracer 

func (k *Keeper) SetTracer(tracer *cosmostracing.Hooks)

SetTracer should only be called during initialization

func (Keeper) SetTransientGasUsed 

func (k Keeper) SetTransientGasUsed(ctx sdk.Context, gasUsed uint64)

SetTransientGasUsed sets the gas used by current cosmos tx.

func (Keeper) SetTxBloom 

func (k Keeper) SetTxBloom(ctx sdk.Context, bloom *big.Int)

func (Keeper) Storage 

func (k Keeper) Storage(c context.Context, req *types.QueryStorageRequest) (*types.QueryStorageResponse, error)

Storage implements the Query/Storage gRPC method

func (*Keeper) SubBalance 

func (k *Keeper) SubBalance(ctx sdk.Context, addr sdk.AccAddress, coins sdk.Coins) error

func (Keeper) TraceBlock 

func (k Keeper) TraceBlock(c context.Context, req *types.QueryTraceBlockRequest) (*types.QueryTraceBlockResponse, error)

TraceBlock configures a new tracer according to the provided configuration, and executes the given message in the provided environment for all the transactions in the queried block. The return value will be tracer dependent.

func (Keeper) TraceCall 

func (k Keeper) TraceCall(c context.Context, req *types.QueryTraceCallRequest) (*types.QueryTraceCallResponse, error)

TraceCall configures a new tracer according to the provided configuration, and executes the given call in the provided environment. The return value will be tracer dependent.

func (Keeper) TraceTx 

func (k Keeper) TraceTx(c context.Context, req *types.QueryTraceTxRequest) (*types.QueryTraceTxResponse, error)

TraceTx configures a new tracer according to the provided configuration, and executes the given message in the provided environment. The return value will be tracer dependent.

func (*Keeper) Transfer 

func (k *Keeper) Transfer(ctx sdk.Context, sender, recipient sdk.AccAddress, coins sdk.Coins) error

func (*Keeper) TxConfig 

func (k *Keeper) TxConfig(ctx sdk.Context, txHash common.Hash) statedb.TxConfig

TxConfig loads `TxConfig` from current transient storage

func (*Keeper) UpdateParams 

func (k *Keeper) UpdateParams(goCtx context.Context, req *types.MsgUpdateParams) (*types.MsgUpdateParamsResponse, error)

UpdateParams implements the gRPC MsgServer interface. When an UpdateParams proposal passes, it updates the module parameters. The update can only be performed if the requested authority is the Cosmos SDK governance module account.

func (Keeper) VMConfig 

func (k Keeper) VMConfig(ctx sdk.Context, cfg *EVMConfig) vm.Config

VMConfig creates an EVM configuration from the debug setting and the extra EIPs enabled on the module parameters. The config generated uses the default JumpTable from the EVM.

func (Keeper) ValidatorAccount 

func (k Keeper) ValidatorAccount(c context.Context, req *types.QueryValidatorAccountRequest) (*types.QueryValidatorAccountResponse, error)

ValidatorAccount implements the Query/Balance gRPC method

func (*Keeper) WithChainID 

func (k *Keeper) WithChainID(ctx sdk.Context)

WithChainID sets the chain id to the local variable in the keeper

type Migrator 

type Migrator struct {
	// contains filtered or unexported fields
}

Migrator is a struct for handling in-place store migrations.

func NewMigrator 

func NewMigrator(keeper Keeper, legacySubspace types.Subspace) Migrator

NewMigrator returns a new Migrator.

func (Migrator) Migrate3to4 

func (m Migrator) Migrate3to4(ctx sdk.Context) error

Migrate3to4 migrates the store from consensus version 3 to 4

func (Migrator) Migrate4to5 

func (m Migrator) Migrate4to5(ctx sdk.Context) error

Migrate4to5 migrates the store from consensus version 4 to 5

func (Migrator) Migrate5to6 

func (m Migrator) Migrate5to6(ctx sdk.Context) error

Migrate5to6 migrates the store from consensus version 5 to 6

type MultiEvmHooks 

type MultiEvmHooks []types.EvmHooks

MultiEvmHooks combine multiple evm hooks, all hook functions are run in array sequence

func NewMultiEvmHooks 

func NewMultiEvmHooks(hooks ...types.EvmHooks) MultiEvmHooks

NewMultiEvmHooks combine multiple evm hooks

func (MultiEvmHooks) PostTxProcessing 

func (mh MultiEvmHooks) PostTxProcessing(ctx sdk.Context, msg *core.Message, receipt *ethtypes.Receipt) error

PostTxProcessing delegate the call to underlying hooks

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