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chore: remove simulation #89

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Merged
julio4 merged 1 commit into from
Dec 8, 2025
Merged

chore: remove simulation #89

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12 changes: 0 additions & 12 deletions src/payload/checkpoint.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -195,18 +195,6 @@ impl<P: Platform> Checkpoint<P> {
Ok(self.apply_with(mutation, self.context().clone()))
}

/// Executes transaction on top of the current checkpoint. The execution will
/// use the cumulative state of all checkpoints in the current checkpoint
/// history as its state.
pub fn simulate<S>(
&self,
executable: impl IntoExecutable<P, S>,
) -> Result<ExecutionResult<P>, ExecutionError<P>> {
executable
.try_into_executable()?
.simulate(self.block(), self)
}

/// Creates a new checkpoint on top of the current checkpoint and tags it.
/// The execution will use the cumulative state of all checkpoints in the
/// current checkpoint history as its state.
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53 changes: 0 additions & 53 deletions src/payload/exec.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -262,59 +262,6 @@ impl<P: Platform> Executable<P> {
state,
})
}

/// Executes this executable as a single unit of state transition and returns
/// the outcome of the execution. If the
/// executable is invalid, no execution result will be produced.
///
/// For details on what makes an executable invalid see the
/// [`simulate_transaction`] and [`simulate_bundle`] methods.
pub fn simulate<DB>(
self,
block: &BlockContext<P>,
db: &DB,
) -> Result<ExecutionResult<P>, ExecutionError<P>>
where
DB: DatabaseRef<Error = ProviderError> + Debug,
{
match self {
Self::Bundle(_) => unreachable!("asd"),
Self::Transaction(tx) => Self::simulate_transaction(tx, block, db)
.map_err(ExecutionError::InvalidTransaction),
}
}

/// Executes a single transaction and returns the outcome of the execution.
///
/// Notes:
/// - Transactions that are invalid and cause EVM failures will not produce an
/// execution result.
///
/// - Transactions that fail gracefully (revert or halt) will produce an
/// execution result and state changes. It is up to higher levels of the
/// system to decide what to do with such transactions, e.g., whether to
/// remove them from the payload or not (see [`RevertProtection`]).
fn simulate_transaction<DB>(
tx: Recovered<types::Transaction<P>>,
block: &BlockContext<P>,
db: &DB,
) -> Result<ExecutionResult<P>, types::EvmError<P, ProviderError>>
where
DB: DatabaseRef<Error = ProviderError> + Debug,
{
let mut state = State::builder().with_database(WrapDatabaseRef(db)).build();

let result = block
.evm_config()
.evm_with_env(&mut state, block.evm_env().clone())
.transact(&tx)?;

Ok(ExecutionResult {
source: Executable::Transaction(tx),
results: vec![result.result],
state: BundleState::default(),
})
}
}

impl<P: Platform> Executable<P> {
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