lib.rs

// This file is part of Substrate.

// Copyright (C) 2018-2020 Parity Technologies (UK) Ltd.
// SPDX-License-Identifier: GPL-3.0-or-later WITH Classpath-exception-2.0

// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.

// This program 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 General Public License for more details.

// You should have received a copy of the GNU General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.

//! The Substrate runtime. This can be compiled with ``#[no_std]`, ready for Wasm.

#![cfg_attr(not(feature = "std"), no_std)]
// `construct_runtime!` does a lot of recursion and requires us to increase the limit to 256.
#![recursion_limit="256"]

use sp_std::prelude::*;
use frame_support::{
	construct_runtime, parameter_types, debug,
	weights::{
		Weight,
		constants::{BlockExecutionWeight, ExtrinsicBaseWeight, RocksDbWeight, WEIGHT_PER_SECOND},
	},
	traits::{Currency, Imbalance, KeyOwnerProofSystem, OnUnbalanced, Randomness, LockIdentifier},
};
use sp_core::{
	crypto::KeyTypeId,
	u32_trait::{_1, _2, _3, _4},
	OpaqueMetadata,
};
pub use node_primitives::{AccountId, Signature};
use node_primitives::{AccountIndex, Balance, BlockNumber, Hash, Index, Moment};
use sp_api::impl_runtime_apis;
use sp_runtime::{
	Permill, Perbill, Perquintill, Percent, ApplyExtrinsicResult,
	impl_opaque_keys, generic, create_runtime_str, ModuleId,
};
use sp_runtime::curve::PiecewiseLinear;
use sp_runtime::transaction_validity::{TransactionValidity, TransactionSource, TransactionPriority};
use sp_runtime::traits::{
	self, BlakeTwo256, Block as BlockT, StaticLookup, SaturatedConversion,
	ConvertInto, OpaqueKeys, NumberFor,
};
use sp_version::RuntimeVersion;
#[cfg(any(feature = "std", test))]
use sp_version::NativeVersion;
use pallet_grandpa::{AuthorityId as GrandpaId, AuthorityList as GrandpaAuthorityList};
use pallet_grandpa::fg_primitives;
use pallet_im_online::sr25519::AuthorityId as ImOnlineId;
use sp_authority_discovery::AuthorityId as AuthorityDiscoveryId;
use pallet_transaction_payment_rpc_runtime_api::RuntimeDispatchInfo;
use pallet_contracts_rpc_runtime_api::ContractExecResult;
use pallet_session::{historical as pallet_session_historical};
use sp_inherents::{InherentData, CheckInherentsResult};
use codec::Encode;
use static_assertions::const_assert;

#[cfg(any(feature = "std", test))]
pub use sp_runtime::BuildStorage;
pub use pallet_timestamp::Call as TimestampCall;
pub use pallet_balances::Call as BalancesCall;
pub use frame_system::Call as SystemCall;
pub use pallet_contracts::Gas;
pub use frame_support::StorageValue;
pub use pallet_staking::StakerStatus;

/// Implementations of some helper traits passed into runtime modules as associated types.
pub mod impls;
use impls::{CurrencyToVoteHandler, Author, LinearWeightToFee, TargetedFeeAdjustment};

/// Constant values used within the runtime.
pub mod constants;
use constants::{time::*, currency::*};

// Make the WASM binary available.
#[cfg(feature = "std")]
include!(concat!(env!("OUT_DIR"), "/wasm_binary.rs"));

/// Runtime version.
pub const VERSION: RuntimeVersion = RuntimeVersion {
	spec_name: create_runtime_str!("node"),
	impl_name: create_runtime_str!("substrate-node"),
	authoring_version: 10,
	// Per convention: if the runtime behavior changes, increment spec_version
	// and set impl_version to 0. If only runtime
	// implementation changes and behavior does not, then leave spec_version as
	// is and increment impl_version.
	spec_version: 249,
	impl_version: 1,
	apis: RUNTIME_API_VERSIONS,
	transaction_version: 1,
};

/// Native version.
#[cfg(any(feature = "std", test))]
pub fn native_version() -> NativeVersion {
	NativeVersion {
		runtime_version: VERSION,
		can_author_with: Default::default(),
	}
}

type NegativeImbalance = <Balances as Currency<AccountId>>::NegativeImbalance;

pub struct DealWithFees;
impl OnUnbalanced<NegativeImbalance> for DealWithFees {
	fn on_unbalanceds<B>(mut fees_then_tips: impl Iterator<Item=NegativeImbalance>) {
		if let Some(fees) = fees_then_tips.next() {
			// for fees, 80% to treasury, 20% to author
			let mut split = fees.ration(80, 20);
			if let Some(tips) = fees_then_tips.next() {
				// for tips, if any, 80% to treasury, 20% to author (though this can be anything)
				tips.ration_merge_into(80, 20, &mut split);
			}
			Treasury::on_unbalanced(split.0);
			Author::on_unbalanced(split.1);
		}
	}
}

parameter_types! {
	pub const BlockHashCount: BlockNumber = 2400;
	/// We allow for 2 seconds of compute with a 6 second average block time.
	pub const MaximumBlockWeight: Weight = 2 * WEIGHT_PER_SECOND;
	pub const MaximumBlockLength: u32 = 5 * 1024 * 1024;
	pub const Version: RuntimeVersion = VERSION;
	pub const AvailableBlockRatio: Perbill = Perbill::from_percent(75);
}

impl frame_system::Trait for Runtime {
	type Origin = Origin;
	type Call = Call;
	type Index = Index;
	type BlockNumber = BlockNumber;
	type Hash = Hash;
	type Hashing = BlakeTwo256;
	type AccountId = AccountId;
	type Lookup = Indices;
	type Header = generic::Header<BlockNumber, BlakeTwo256>;
	type Event = Event;
	type BlockHashCount = BlockHashCount;
	type MaximumBlockWeight = MaximumBlockWeight;
	type DbWeight = RocksDbWeight;
	type BlockExecutionWeight = BlockExecutionWeight;
	type ExtrinsicBaseWeight = ExtrinsicBaseWeight;
	type MaximumBlockLength = MaximumBlockLength;
	type AvailableBlockRatio = AvailableBlockRatio;
	type Version = Version;
	type ModuleToIndex = ModuleToIndex;
	type AccountData = pallet_balances::AccountData<Balance>;
	type OnNewAccount = ();
	type OnKilledAccount = ();
}

parameter_types! {
	// One storage item; value is size 4+4+16+32 bytes = 56 bytes.
	pub const MultisigDepositBase: Balance = 30 * CENTS;
	// Additional storage item size of 32 bytes.
	pub const MultisigDepositFactor: Balance = 5 * CENTS;
	pub const MaxSignatories: u16 = 100;
}

impl pallet_utility::Trait for Runtime {
	type Event = Event;
	type Call = Call;
	type Currency = Balances;
	type MultisigDepositBase = MultisigDepositBase;
	type MultisigDepositFactor = MultisigDepositFactor;
	type MaxSignatories = MaxSignatories;
}

parameter_types! {
	pub const MaximumSchedulerWeight: Weight = Perbill::from_percent(80) * MaximumBlockWeight::get();
}

impl pallet_scheduler::Trait for Runtime {
	type Event = Event;
	type Origin = Origin;
	type Call = Call;
	type MaximumWeight = MaximumSchedulerWeight;
}

parameter_types! {
	pub const EpochDuration: u64 = EPOCH_DURATION_IN_SLOTS;
	pub const ExpectedBlockTime: Moment = MILLISECS_PER_BLOCK;
}

impl pallet_babe::Trait for Runtime {
	type EpochDuration = EpochDuration;
	type ExpectedBlockTime = ExpectedBlockTime;
	type EpochChangeTrigger = pallet_babe::ExternalTrigger;
}