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Proof of concept: Add a new runtime that uses pallet_contracts (#186)
* seal: Copy over a legacy version of pallet_contracts from substrate * seal: Fix substrate dependency pathes and add as dependency to runtime * seal: Adapt pallet to current substrate version * seal: Add contracts pallet to runtime * seal: Implement rpc runtime api * seal: Update to latest rpc output format * seal: Replace child trie by prefix trie * seal: Add contracts endpoint to the client * seal: fixup rpc test * Fix whitespace issue Co-authored-by: Sergei Shulepov <sergei@parity.io> * seal: Move pallet out of the runtime directory * seal: Create a seperate runtime for contracts * Move parachains to top level directory * seal: Disable rent for easier testing Co-authored-by: Sergei Shulepov <sergei@parity.io>
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Alexander Theißen
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GitHub
GitHub
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[package]
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name = "pallet-contracts-rpc-runtime-api"
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version = "0.8.0-rc3"
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authors = ["Parity Technologies <admin@parity.io>"]
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edition = "2018"
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license = "Apache-2.0"
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homepage = "https://substrate.dev"
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repository = "https://github.com/paritytech/substrate/"
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description = "Runtime API definition required by Contracts RPC extensions."
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[package.metadata.docs.rs]
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targets = ["x86_64-unknown-linux-gnu"]
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[dependencies]
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sp-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "rococo-branch" }
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codec = { package = "parity-scale-codec", version = "1.3.1", default-features = false, features = ["derive"] }
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sp-std = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "rococo-branch" }
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sp-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "rococo-branch" }
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pallet-contracts-primitives = { path = "../../common", default-features = false }
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[features]
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default = ["std"]
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std = [
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"sp-api/std",
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"codec/std",
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"sp-std/std",
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"sp-runtime/std",
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"pallet-contracts-primitives/std",
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]
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// This file is part of Substrate.
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// Copyright (C) 2019-2020 Parity Technologies (UK) Ltd.
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// SPDX-License-Identifier: Apache-2.0
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//! Runtime API definition required by Contracts RPC extensions.
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//!
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//! This API should be imported and implemented by the runtime,
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//! of a node that wants to use the custom RPC extension
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//! adding Contracts access methods.
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#![cfg_attr(not(feature = "std"), no_std)]
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use codec::{Codec, Decode, Encode};
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use pallet_contracts_primitives::{GetStorageResult, RentProjectionResult};
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use sp_runtime::RuntimeDebug;
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use sp_std::vec::Vec;
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/// A result of execution of a contract.
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#[derive(Eq, PartialEq, Encode, Decode, RuntimeDebug)]
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pub enum ContractExecResult {
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/// The contract returned successfully.
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///
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/// There is a status code and, optionally, some data returned by the contract.
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Success {
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/// Flags that the contract passed along on returning to alter its exit behaviour.
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/// Described in `pallet_contracts::exec::ReturnFlags`.
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flags: u32,
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/// Output data returned by the contract.
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///
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/// Can be empty.
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data: Vec<u8>,
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/// How much gas was consumed by the call.
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gas_consumed: u64,
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},
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/// The contract execution either trapped or returned an error.
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Error,
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}
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sp_api::decl_runtime_apis! {
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/// The API to interact with contracts without using executive.
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pub trait ContractsApi<AccountId, Balance, BlockNumber> where
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AccountId: Codec,
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Balance: Codec,
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BlockNumber: Codec,
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{
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/// Perform a call from a specified account to a given contract.
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///
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/// See the contracts' `call` dispatchable function for more details.
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fn call(
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origin: AccountId,
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dest: AccountId,
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value: Balance,
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gas_limit: u64,
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input_data: Vec<u8>,
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) -> ContractExecResult;
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/// Query a given storage key in a given contract.
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///
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/// Returns `Ok(Some(Vec<u8>))` if the storage value exists under the given key in the
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/// specified account and `Ok(None)` if it doesn't. If the account specified by the address
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/// doesn't exist, or doesn't have a contract or if the contract is a tombstone, then `Err`
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/// is returned.
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fn get_storage(
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address: AccountId,
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key: [u8; 32],
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) -> GetStorageResult;
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/// Returns the projected time a given contract will be able to sustain paying its rent.
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///
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/// The returned projection is relevant for the current block, i.e. it is as if the contract
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/// was accessed at the current block.
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///
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/// Returns `Err` if the contract is in a tombstone state or doesn't exist.
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fn rent_projection(address: AccountId) -> RentProjectionResult<BlockNumber>;
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}
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}
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