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* Happy New Year! * Remove year entierly Co-authored-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io> * Remove years from copyright notice in the entire repo --------- Co-authored-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
60 lines
2.0 KiB
Rust
60 lines
2.0 KiB
Rust
// Copyright (C) Parity Technologies (UK) Ltd.
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// This file is part of Polkadot.
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// Polkadot is free software: you can redistribute it and/or modify
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// it under the terms of the GNU 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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// Polkadot 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 General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with Polkadot. If not, see <http://www.gnu.org/licenses/>.
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use xcm::prelude::*;
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/// Handle stuff to do with taking fees in certain XCM instructions.
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pub trait FeeManager {
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/// Determine if a fee which would normally payable should be waived.
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fn is_waived(origin: Option<&MultiLocation>, r: FeeReason) -> bool;
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/// Do something with the fee which has been paid. Doing nothing here silently burns the
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/// fees.
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fn handle_fee(fee: MultiAssets);
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}
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/// Context under which a fee is paid.
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#[derive(Copy, Clone, Eq, PartialEq)]
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pub enum FeeReason {
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/// When a reporting instruction is called.
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Report,
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/// When the `TransferReserveAsset` instruction is called.
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TransferReserveAsset,
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/// When the `DepositReserveAsset` instruction is called.
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DepositReserveAsset,
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/// When the `InitiateReserveWithdraw` instruction is called.
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InitiateReserveWithdraw,
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/// When the `InitiateTeleport` instruction is called.
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InitiateTeleport,
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/// When the `QueryPallet` instruction is called.
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QueryPallet,
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/// When the `ExportMessage` instruction is called (and includes the network ID).
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Export(NetworkId),
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/// The `charge_fees` API.
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ChargeFees,
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/// When the `LockAsset` instruction is called.
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LockAsset,
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/// When the `RequestUnlock` instruction is called.
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RequestUnlock,
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}
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impl FeeManager for () {
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fn is_waived(_: Option<&MultiLocation>, _: FeeReason) -> bool {
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true
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}
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fn handle_fee(_: MultiAssets) {}
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}
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