mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-07-09 04:47:24 +00:00
Gav
131 lines
3.2 KiB
Rust
131 lines
3.2 KiB
Rust
use primitives::{Block, BlockNumber, Hash, Transaction};
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use runtime_support::{Vec, swap};
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use environment::with_env;
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use runtime_support;
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use runtime::staking;
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/// The current block number being processed. Set by `execute_block`.
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pub fn block_number() -> BlockNumber {
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with_env(|e| e.block_number)
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}
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/// Get the block hash of a given block (uses storage).
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pub fn block_hash(_number: BlockNumber) -> Hash {
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unimplemented!()
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}
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/// Deposits a log and ensures it matches the blocks log data.
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pub fn deposit_log(log: &[u8]) {
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with_env(|e| {
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assert_eq!(log, &e.digest.logs[e.next_log_index][..]);
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e.next_log_index += 1;
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});
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}
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pub fn execute_block(mut block: Block) -> Vec<u8> {
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// populate environment from header.
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with_env(|e| {
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e.block_number = block.header.number;
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swap(&mut e.digest, &mut block.header.digest);
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e.next_log_index = 0;
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});
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// TODO: check transaction trie root represents the transactions.
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// TODO: store the header hash in storage.
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staking::pre_transactions();
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block.transactions.iter().for_each(|tx| { execute_transaction(tx); });
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staking::post_transactions();
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final_checks(&block);
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// TODO: check state root somehow
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Vec::new()
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}
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fn final_checks(_block: &Block) {
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with_env(|e| {
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assert_eq!(e.next_log_index, e.digest.logs.len());
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});
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}
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/// Execute a given transaction.
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pub fn execute_transaction(_tx: &Transaction) -> Vec<u8> {
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// TODO: decode data and ensure valid
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// TODO: ensure signature valid and recover id (use authentication::authenticate)
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// TODO: check nonce
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// TODO: increment nonce in storage
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// TODO: ensure target_function valid
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// TODO: decode parameters
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_tx.function.dispatch(&_tx.signed, &_tx.input_data);
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// TODO: encode any return
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Vec::new()
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}
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/// Set the new code.
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pub fn set_code(new: &[u8]) {
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runtime_support::set_storage(b"\0code", new)
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}
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#[cfg(test)]
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mod tests {
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use joiner::Joiner;
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use function::Function;
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use std::collections::HashMap;
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use runtime_support::{NoError, with_externalities, Externalities};
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use primitives::{AccountID, Transaction};
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use runtime::{system, staking};
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#[derive(Debug, Default)]
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struct TestExternalities {
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storage: HashMap<Vec<u8>, Vec<u8>>,
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}
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impl Externalities for TestExternalities {
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type Error = NoError;
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fn storage(&self, key: &[u8]) -> Result<&[u8], NoError> {
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Ok(self.storage.get(&key.to_vec()).map_or(&[] as &[u8], Vec::as_slice))
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}
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fn set_storage(&mut self, key: Vec<u8>, value: Vec<u8>) {
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self.storage.insert(key, value);
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}
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fn chain_id(&self) -> u64 { 42 }
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}
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macro_rules! map {
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($( $name:expr => $value:expr ),*) => (
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vec![ $( ( $name, $value ) ),* ].into_iter().collect()
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)
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}
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#[test]
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fn staking_balance_transfer_dispatch_works() {
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let one: AccountID = [1u8; 32];
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let two: AccountID = [2u8; 32];
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let mut t = TestExternalities { storage: map![
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{ let mut r = b"sta\0bal\0".to_vec(); r.extend_from_slice(&one); r } => vec![111u8, 0, 0, 0, 0, 0, 0, 0]
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], };
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let tx = Transaction {
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signed: one.clone(),
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function: Function::StakingTransferStake,
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input_data: vec![].join(&two).join(&69u64),
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nonce: 0,
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};
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with_externalities(&mut t, || {
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system::execute_transaction(&tx);
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assert_eq!(staking::balance(&one), 42);
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assert_eq!(staking::balance(&two), 69);
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});
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}
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}
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