Extract CallContract and RegistryInfo traits into their own crate (#10178)

* Create call-contract crate

* Add license

* First attempt at using extracted CallContract trait

* Remove unneeded `extern crate` calls

* Move RegistryInfo trait into call-contract crate

* Move service-transaction-checker from ethcore to ethcore-miner

* Update Cargo.lock file

* Re-export call_contract

* Merge CallContract and RegistryInfo imports

* Remove commented code

* Add documentation to call_contract crate

* Add TODO for removal of re-exports

* Update call-contract crate description

Co-Authored-By: HCastano <[email protected]>

* Rename call-contract crate to ethcore-call-contract

Author: HCastano

Cargo.lock

@@ -21,6 +21,7 @@ ethabi-derive = "6.0"
 ethash = { path = "../ethash" }
 ethcore-blockchain = { path = "./blockchain" }
 ethcore-bloom-journal = { path = "../util/bloom" }
+ethcore-call-contract = { path = "./call-contract" }
 ethcore-db = { path = "./db" }
 ethcore-io = { path = "../util/io" }
 ethcore-miner = { path = "../miner" }

ethcore/Cargo.toml

@@ -0,0 +1,11 @@
+[package]
+name = "ethcore-call-contract"
+version = "0.1.0"
+license = "GPL-3.0"
+authors = ["Parity Technologies <[email protected]>"]
+edition = "2018"
+
+[dependencies]
+types = { path = "../types", package = "common-types" }
+ethereum-types = "0.4"
+bytes = { version = "0.1", package = "parity-bytes" }

ethcore/call-contract/Cargo.toml

@@ -0,0 +1,33 @@
+// Copyright 2015-2019 Parity Technologies (UK) Ltd.
+// This file is part of Parity Ethereum.
+
+// Parity Ethereum 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.
+
+// Parity Ethereum 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 Parity Ethereum.  If not, see <http://www.gnu.org/licenses/>.
+
+//! Provides CallContract and RegistryInfo traits
+
+use bytes::Bytes;
+use ethereum_types::Address;
+use types::ids::BlockId;
+
+/// Provides `call_contract` method
+pub trait CallContract {
+	/// Like `call`, but with various defaults. Designed to be used for calling contracts.
+	fn call_contract(&self, id: BlockId, address: Address, data: Bytes) -> Result<Bytes, String>;
+}
+
+/// Provides information on a blockchain service and it's registry
+pub trait RegistryInfo {
+	/// Get the address of a particular blockchain service, if available.
+	fn registry_address(&self, name: String, block: BlockId) -> Option<Address>;
+}

ethcore/call-contract/src/call_contract.rs

@@ -0,0 +1,27 @@
+// Copyright 2015-2019 Parity Technologies (UK) Ltd.
+// This file is part of Parity Ethereum.
+
+// Parity Ethereum 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.
+
+// Parity Ethereum 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 Parity Ethereum.  If not, see <http://www.gnu.org/licenses/>.
+
+#![warn(missing_docs)]
+
+//! Call Contract module
+//! 
+//! This crate exposes traits required to call contracts at particular block.
+//! All utilities that depend on on-chain data should use those traits to access it.
+
+pub mod call_contract;
+
+// Re-export
+pub use self::call_contract::*;

ethcore/call-contract/src/lib.rs

@@ -23,6 +23,7 @@ use std::time::{Instant, Duration};
 
 use blockchain::{BlockReceipts, BlockChain, BlockChainDB, BlockProvider, TreeRoute, ImportRoute, TransactionAddress, ExtrasInsert, BlockNumberKey};
 use bytes::Bytes;
+use call_contract::{CallContract, RegistryInfo};
 use ethcore_miner::pool::VerifiedTransaction;
 use ethereum_types::{H256, Address, U256};
 use evm::Schedule;
@@ -46,8 +47,8 @@ use vm::{EnvInfo, LastHashes};
 use block::{IsBlock, LockedBlock, Drain, ClosedBlock, OpenBlock, enact_verified, SealedBlock};
 use client::ancient_import::AncientVerifier;
 use client::{
-	Nonce, Balance, ChainInfo, BlockInfo, CallContract, TransactionInfo,
-	RegistryInfo, ReopenBlock, PrepareOpenBlock, ScheduleInfo, ImportSealedBlock,
+	Nonce, Balance, ChainInfo, BlockInfo, TransactionInfo,
+	ReopenBlock, PrepareOpenBlock, ScheduleInfo, ImportSealedBlock,
 	BroadcastProposalBlock, ImportBlock, StateOrBlock, StateInfo, StateClient, Call,
 	AccountData, BlockChain as BlockChainTrait, BlockProducer, SealedBlockImporter,
 	ClientIoMessage, BlockChainReset

ethcore/src/client/client.rs

@@ -36,9 +36,9 @@ pub use self::io_message::ClientIoMessage;
 pub use self::test_client::{TestBlockChainClient, EachBlockWith};
 pub use self::chain_notify::{ChainNotify, NewBlocks, ChainRoute, ChainRouteType, ChainMessageType};
 pub use self::traits::{
-    Nonce, Balance, ChainInfo, BlockInfo, ReopenBlock, PrepareOpenBlock, CallContract, TransactionInfo, RegistryInfo, ScheduleInfo, ImportSealedBlock, BroadcastProposalBlock, ImportBlock,
-    StateOrBlock, StateClient, Call, EngineInfo, AccountData, BlockChain, BlockProducer, SealedBlockImporter,
-	BadBlocks, BlockChainReset
+    Nonce, Balance, ChainInfo, BlockInfo, ReopenBlock, PrepareOpenBlock, TransactionInfo, ScheduleInfo, ImportSealedBlock, BroadcastProposalBlock, ImportBlock,
+    StateOrBlock, StateClient, Call, EngineInfo, AccountData, BlockChain, BlockProducer, SealedBlockImporter, BadBlocks,
+	BlockChainReset
 };
 pub use state::StateInfo;
 pub use self::traits::{BlockChainClient, EngineClient, ProvingBlockChainClient, IoClient};
@@ -48,6 +48,9 @@ pub use types::trace_filter::Filter as TraceFilter;
 pub use types::pruning_info::PruningInfo;
 pub use types::call_analytics::CallAnalytics;
 
+// TODO: Get rid of re-exports: https://github.com/paritytech/parity-ethereum/issues/10130
+pub use call_contract::{CallContract, RegistryInfo};
+
 pub use executive::{Executed, Executive, TransactOptions};
 pub use vm::{LastHashes, EnvInfo};
 

ethcore/src/client/mod.rs

@@ -49,8 +49,9 @@ use types::views::BlockView;
 use vm::Schedule;
 
 use block::{OpenBlock, SealedBlock, ClosedBlock};
+use call_contract::{CallContract, RegistryInfo};
 use client::{
-	Nonce, Balance, ChainInfo, BlockInfo, ReopenBlock, CallContract, TransactionInfo, RegistryInfo,
+	Nonce, Balance, ChainInfo, BlockInfo, ReopenBlock, TransactionInfo,
 	PrepareOpenBlock, BlockChainClient, BlockChainInfo, BlockStatus, BlockId, Mode,
 	TransactionId, UncleId, TraceId, TraceFilter, LastHashes, CallAnalytics,
 	ProvingBlockChainClient, ScheduleInfo, ImportSealedBlock, BroadcastProposalBlock, ImportBlock, StateOrBlock,

ethcore/src/client/test_client.rs

@@ -19,6 +19,7 @@ use std::sync::Arc;
 
 use blockchain::{BlockReceipts, TreeRoute};
 use bytes::Bytes;
+use call_contract::{CallContract, RegistryInfo};
 use ethcore_miner::pool::VerifiedTransaction;
 use ethereum_types::{H256, U256, Address};
 use evm::Schedule;
@@ -157,25 +158,13 @@ pub trait StateClient {
 /// Provides various blockchain information, like block header, chain state etc.
 pub trait BlockChain: ChainInfo + BlockInfo + TransactionInfo {}
 
-/// Provides information on a blockchain service and it's registry
-pub trait RegistryInfo {
-	/// Get the address of a particular blockchain service, if available.
-	fn registry_address(&self, name: String, block: BlockId) -> Option<Address>;
-}
-
 // FIXME Why these methods belong to BlockChainClient and not MiningBlockChainClient?
 /// Provides methods to import block into blockchain
 pub trait ImportBlock {
 	/// Import a block into the blockchain.
 	fn import_block(&self, block: Unverified) -> EthcoreResult<H256>;
 }
 
-/// Provides `call_contract` method
-pub trait CallContract {
-	/// Like `call`, but with various defaults. Designed to be used for calling contracts.
-	fn call_contract(&self, id: BlockId, address: Address, data: Bytes) -> Result<Bytes, String>;
-}
-
 /// Provides `call` and `call_many` methods
 pub trait Call {
 	/// Type representing chain state

ethcore/src/client/traits.rs

@@ -60,6 +60,7 @@
 extern crate ansi_term;
 extern crate bn;
 extern crate byteorder;
+extern crate ethcore_call_contract as call_contract;
 extern crate common_types as types;
 extern crate crossbeam;
 extern crate ethabi;