frame_try_runtime/inner.rs
1// This file is part of Substrate.
2
3// Copyright (C) Parity Technologies (UK) Ltd.
4// SPDX-License-Identifier: Apache-2.0
5
6// Licensed under the Apache License, Version 2.0 (the "License");
7// you may not use this file except in compliance with the License.
8// You may obtain a copy of the License at
9//
10// http://www.apache.org/licenses/LICENSE-2.0
11//
12// Unless required by applicable law or agreed to in writing, software
13// distributed under the License is distributed on an "AS IS" BASIS,
14// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15// See the License for the specific language governing permissions and
16// limitations under the License.
17
18//! Supporting types for try-runtime, testing and dry-running commands.
19
20pub use frame_support::traits::{TryStateSelect, UpgradeCheckSelect};
21use frame_support::weights::Weight;
22
23sp_api::decl_runtime_apis! {
24 /// Runtime api for testing the execution of a runtime upgrade.
25 pub trait TryRuntime {
26 /// dry-run runtime upgrades, returning the total weight consumed.
27 ///
28 /// This should do EXACTLY the same operations as the runtime would have done in the case of
29 /// a runtime upgrade (e.g. pallet ordering must be the same)
30 ///
31 /// Returns the consumed weight of the migration in case of a successful one, combined with
32 /// the total allowed block weight of the runtime.
33 ///
34 /// If `checks` is `true`, `pre_migrate` and `post_migrate` of each migration and
35 /// `try_state` of all pallets will be executed. Else, no. If checks are executed, the PoV
36 /// tracking is likely inaccurate.
37 fn on_runtime_upgrade(checks: UpgradeCheckSelect) -> (Weight, Weight);
38
39 /// Execute the given block, but optionally disable state-root and signature checks.
40 ///
41 /// Optionally, a number of `try_state` hooks can also be executed after the block
42 /// execution.
43 fn execute_block(
44 block: Block,
45 state_root_check: bool,
46 signature_check: bool,
47 try_state: TryStateSelect,
48 ) -> Weight;
49 }
50}