Reorganising the repository - external renames and moves (#4074)

* Adding first rough ouline of the repository structure * Remove old CI stuff * add title * formatting fixes * move node-exits job's script to scripts dir * Move docs into subdir * move to bin * move maintainence scripts, configs and helpers into its own dir * add .local to ignore * move core->client * start up 'test' area * move test client * move test runtime * make test move compile * Add dependencies rule enforcement. * Fix indexing. * Update docs to reflect latest changes * Moving /srml->/paint * update docs * move client/sr-* -> primitives/ * clean old readme * remove old broken code in rhd * update lock * Step 1. * starting to untangle client * Fix after merge. * start splitting out client interfaces * move children and blockchain interfaces * Move trie and state-machine to primitives. * Fix WASM builds. * fixing broken imports * more interface moves * move backend and light to interfaces * move CallExecutor * move cli off client * moving around more interfaces * re-add consensus crates into the mix * fix subkey path * relieve client from executor * starting to pull out client from grandpa * move is_decendent_of out of client * grandpa still depends on client directly * lemme tests pass * rename srml->paint * Make it compile. * rename interfaces->client-api * Move keyring to primitives. * fixup libp2p dep * fix broken use * allow dependency enforcement to fail * move fork-tree * Moving wasm-builder * make env * move build-script-utils * fixup broken crate depdencies and names * fix imports for authority discovery * fix typo * update cargo.lock * fixing imports * Fix paths and add missing crates * re-add missing crates
2026-05-06 02:08:02 +00:00 · 2019-11-14 21:51:17 +01:00
parent becc3b0a4f
commit 60e5011c72
809 changed files with 7801 additions and 6464 deletions
@@ -0,0 +1,84 @@
+// Copyright 2018-2019 Parity Technologies (UK) Ltd.
+// This file is part of Substrate.
+
+// 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.
+
+// 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 Substrate.  If not, see <http://www.gnu.org/licenses/>.
+
+//! Block evaluation and evaluation errors.
+
+use super::MAX_BLOCK_SIZE;
+
+use codec::Encode;
+use sr_primitives::traits::{Block as BlockT, Header as HeaderT, One, CheckedConversion};
+
+// This is just a best effort to encode the number. None indicated that it's too big to encode
+// in a u128.
+type BlockNumber = Option<u128>;
+
+/// Result type alias.
+pub type Result<T> = std::result::Result<T, Error>;
+
+/// Error type.
+#[derive(Debug, derive_more::Display)]
+pub enum Error {
+	/// Proposal provided not a block.
+	#[display(fmt="Proposal provided not a block: decoding error: {}", _0)]
+	BadProposalFormat(codec::Error),
+	/// Proposal had wrong parent hash.
+	#[display(fmt="Proposal had wrong parent hash. Expected {:?}, got {:?}", expected, got)]
+	WrongParentHash { expected: String, got: String },
+	/// Proposal had wrong number.
+	#[display(fmt="Proposal had wrong number. Expected {:?}, got {:?}", expected, got)]
+	WrongNumber { expected: BlockNumber, got: BlockNumber },
+	/// Proposal exceeded the maximum size.
+	#[display(
+		fmt="Proposal exceeded the maximum size of {} by {} bytes.",
+		"MAX_BLOCK_SIZE", "_0.saturating_sub(MAX_BLOCK_SIZE)"
+	)]
+	ProposalTooLarge(usize),
+}
+
+impl std::error::Error for Error {}
+
+/// Attempt to evaluate a substrate block as a node block, returning error
+/// upon any initial validity checks failing.
+pub fn evaluate_initial<Block: BlockT>(
+	proposal: &Block,
+	parent_hash: &<Block as BlockT>::Hash,
+	parent_number: <<Block as BlockT>::Header as HeaderT>::Number,
+) -> Result<()> {
+
+	let encoded = Encode::encode(proposal);
+	let proposal = Block::decode(&mut &encoded[..])
+		.map_err(|e| Error::BadProposalFormat(e))?;
+
+	if encoded.len() > MAX_BLOCK_SIZE {
+		return Err(Error::ProposalTooLarge(encoded.len()))
+	}
+
+	if *parent_hash != *proposal.header().parent_hash() {
+		return Err(Error::WrongParentHash {
+			expected: format!("{:?}", *parent_hash),
+			got: format!("{:?}", proposal.header().parent_hash())
+		});
+	}
+
+	if parent_number + One::one() != *proposal.header().number() {
+		return Err(Error::WrongNumber {
+			expected: parent_number.checked_into::<u128>().map(|x| x + 1),
+			got: (*proposal.header().number()).checked_into::<u128>(),
+		});
+	}
+
+	Ok(())
+}