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Re-introduce zero copy codec and add minimal polkadot client API which uses linked native runtime (#65)

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* client-api type and move duty roster types to primitives

* tuple implementation for slicable

* mild cleanup of deserialization code

* stubs which handle encoding and decoding themselves

* fancier impl_stubs macro

* zero-copy slicable API

* minimal polkadot-client API

* fix WASM API generation

* move native environment stuff to substrate executor

* fix warnings and grumbles
This commit is contained in:
Robert Habermeier
2018-02-08 19:20:34 +01:00
committed by Gav Wood
parent f2b3bab61e
commit a00d0e75fd
31 changed files with 634 additions and 252 deletions
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substrate/substrate/client/src/lib.rs
+19 -13
View File
@@ -1,20 +1,20 @@
// Copyright 2017 Parity Technologies (UK) Ltd.
// This file is part of Polkadot.
// This file is part of Substrate.
// Polkadot is free software: you can redistribute it and/or modify
// Substrate 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.
// Polkadot is distributed in the hope that it will be useful,
// Substrate 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 Polkadot. If not, see <http://www.gnu.org/licenses/>.
// along with Substrate. If not, see <http://www.gnu.org/licenses/>.
//! Polkadot Client
//! Substrate Client
#![warn(missing_docs)]
@@ -139,8 +139,9 @@ impl<B, E> Client<B, E> where
})
}
fn state_at(&self, id: BlockId) -> error::Result<B::State> {
self.backend.state_at(id)
/// Get a reference to the state at a given block.
pub fn state_at(&self, block: &BlockId) -> error::Result<B::State> {
self.backend.state_at(*block)
}
/// Expose backend reference. To be used in tests only
@@ -148,28 +149,33 @@ impl<B, E> Client<B, E> where
&self.backend
}
/// Return single storage entry of contract under given address in state in a block of given id.
/// Return single storage entry of contract under given address in state in a block of given hash.
pub fn storage(&self, id: &BlockId, key: &StorageKey) -> error::Result<StorageData> {
Ok(self.state_at(*id)?
Ok(self.state_at(id)?
.storage(&key.0)
.map(|x| StorageData(x.to_vec()))?)
}
/// Execute a call to a contract on top of state in a block of given id.
/// Get the code at a given block.
pub fn code_at(&self, id: &BlockId) -> error::Result<Vec<u8>> {
self.storage(id, &StorageKey(b":code:".to_vec())).map(|data| data.0)
}
/// Execute a call to a contract on top of state in a block of given hash.
///
/// No changes are made.
pub fn call(&self, id: &BlockId, method: &str, call_data: &[u8]) -> error::Result<CallResult> {
let state = self.state_at(*id)?;
let mut changes = state_machine::OverlayedChanges::default();
let state = self.state_at(id)?;
let _ = state_machine::execute(
let return_data = state_machine::execute(
&state,
&mut changes,
&self.executor,
method,
call_data,
)?;
Ok(CallResult { return_data: vec![], changes })
Ok(CallResult { return_data, changes })
}
/// Queue a block for import.