Trait pallet_evm::pallet::Config

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pub trait Config: Config {
Show 22 associated items
    type FeeCalculator: FeeCalculator;
    type GasWeightMapping: GasWeightMapping;
    type WeightPerGas: Get<Weight>;
    type BlockHashMapping: BlockHashMapping;
    type CallOrigin: EnsureAddressOrigin<Self::RuntimeOrigin>;
    type WithdrawOrigin: EnsureAddressOrigin<Self::RuntimeOrigin, Success = Self::AccountId>;
    type AddressMapping: AddressMapping<Self::AccountId>;
    type Currency: Currency<Self::AccountId> + Inspect<Self::AccountId>;
    type RuntimeEvent: From<Event<Self>> + IsType<<Self as Config>::RuntimeEvent>;
    type PrecompilesType: PrecompileSet;
    type PrecompilesValue: Get<Self::PrecompilesType>;
    type ChainId: Get<u64>;
    type BlockGasLimit: Get<U256>;
    type Runner: Runner<Self>;
    type OnChargeTransaction: OnChargeEVMTransaction<Self>;
    type OnCreate: OnCreate<Self>;
    type FindAuthor: FindAuthor<H160>;
    type GasLimitPovSizeRatio: Get<u64>;
    type Timestamp: Time;
    type WeightInfo: WeightInfo;
    type ThreeVm: ThreeVm<Self, BalanceOf<Self>>;

    // Provided method
    fn config() -> &'static EvmConfig { ... }
}

Expand description

Configuration trait of this pallet.

The main purpose of this trait is to act as an interface between this pallet and the runtime in which it is embedded in. A type, function, or constant in this trait is essentially left to be configured by the runtime that includes this pallet.

Consequently, a runtime that wants to include this pallet must implement this trait.

Required Associated Types§

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type FeeCalculator: FeeCalculator

Calculator for current gas price.

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type GasWeightMapping: GasWeightMapping

Maps Ethereum gas to Substrate weight.

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type WeightPerGas: Get<Weight>

Weight corresponding to a gas unit.

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type BlockHashMapping: BlockHashMapping

Block number to block hash.

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type CallOrigin: EnsureAddressOrigin<Self::RuntimeOrigin>

Allow the origin to call on behalf of given address.

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type WithdrawOrigin: EnsureAddressOrigin<Self::RuntimeOrigin, Success = Self::AccountId>

Allow the origin to withdraw on behalf of given address.

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type AddressMapping: AddressMapping<Self::AccountId>

Mapping from address to account id.

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type Currency: Currency<Self::AccountId> + Inspect<Self::AccountId>

Currency type for withdraw and balance storage.

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type RuntimeEvent: From<Event<Self>> + IsType<<Self as Config>::RuntimeEvent>

The overarching event type.

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type PrecompilesType: PrecompileSet

Precompiles associated with this EVM engine.

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type PrecompilesValue: Get<Self::PrecompilesType>

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type ChainId: Get<u64>

Chain ID of EVM.

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type BlockGasLimit: Get<U256>

The block gas limit. Can be a simple constant, or an adjustment algorithm in another pallet.

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type Runner: Runner<Self>

EVM execution runner.

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type OnChargeTransaction: OnChargeEVMTransaction<Self>

To handle fee deduction for EVM transactions. An example is this pallet being used by pallet_ethereum where the chain implementing pallet_ethereum should be able to configure what happens to the fees Similar to OnChargeTransaction of pallet_transaction_payment

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