Trait Trace

pub trait Trace: LoadState<Provider: BlockReader, Evm: ConfigureEvm<Header = ProviderHeader<Self::Provider>, Transaction = ProviderTx<Self::Provider>>> {
    // Provided methods
    fn inspect<DB, I>(
        &self,
        db: DB,
        env: EnvWithHandlerCfg,
        inspector: I,
    ) -> Result<(ResultAndState, EnvWithHandlerCfg), Self::Error>
       where DB: Database,
             EthApiError: From<DB::Error>,
             I: GetInspector<DB> { ... }
    fn inspect_and_return_db<DB, I>(
        &self,
        db: DB,
        env: EnvWithHandlerCfg,
        inspector: I,
    ) -> Result<(ResultAndState, EnvWithHandlerCfg, DB), Self::Error>
       where DB: Database,
             EthApiError: From<DB::Error>,
             I: GetInspector<DB> { ... }
    fn trace_at<F, R>(
        &self,
        env: EnvWithHandlerCfg,
        config: TracingInspectorConfig,
        at: BlockId,
        f: F,
    ) -> Result<R, Self::Error>
       where Self: Call,
             F: FnOnce(TracingInspector, ResultAndState) -> Result<R, Self::Error> { ... }
    fn spawn_trace_at_with_state<F, R>(
        &self,
        env: EnvWithHandlerCfg,
        config: TracingInspectorConfig,
        at: BlockId,
        f: F,
    ) -> impl Future<Output = Result<R, Self::Error>> + Send
       where Self: LoadPendingBlock + Call,
             F: FnOnce(TracingInspector, ResultAndState, StateCacheDb<'_>) -> Result<R, Self::Error> + Send + 'static,
             R: Send + 'static { ... }
    fn spawn_trace_transaction_in_block<F, R>(
        &self,
        hash: B256,
        config: TracingInspectorConfig,
        f: F,
    ) -> impl Future<Output = Result<Option<R>, Self::Error>> + Send
       where Self: LoadPendingBlock + LoadTransaction + Call,
             F: FnOnce(TransactionInfo, TracingInspector, ResultAndState, StateCacheDb<'_>) -> Result<R, Self::Error> + Send + 'static,
             R: Send + 'static { ... }
    fn spawn_trace_transaction_in_block_with_inspector<Insp, F, R>(
        &self,
        hash: B256,
        inspector: Insp,
        f: F,
    ) -> impl Future<Output = Result<Option<R>, Self::Error>> + Send
       where Self: LoadPendingBlock + LoadTransaction + Call,
             F: FnOnce(TransactionInfo, Insp, ResultAndState, StateCacheDb<'_>) -> Result<R, Self::Error> + Send + 'static,
             Insp: for<'a, 'b> Inspector<StateCacheDbRefMutWrapper<'a, 'b>> + Send + 'static,
             R: Send + 'static { ... }
    fn trace_block_until<F, R>(
        &self,
        block_id: BlockId,
        block: Option<Arc<SealedBlockWithSenders<ProviderBlock<Self::Provider>>>>,
        highest_index: Option<u64>,
        config: TracingInspectorConfig,
        f: F,
    ) -> impl Future<Output = Result<Option<Vec<R>>, Self::Error>> + Send
       where Self: LoadBlock,
             F: Fn(TransactionInfo, TracingInspector, ExecutionResult, &EvmState, &StateCacheDb<'_>) -> Result<R, Self::Error> + Send + 'static,
             R: Send + 'static { ... }
    fn trace_block_until_with_inspector<Setup, Insp, F, R>(
        &self,
        block_id: BlockId,
        block: Option<Arc<SealedBlockWithSenders<ProviderBlock<Self::Provider>>>>,
        highest_index: Option<u64>,
        inspector_setup: Setup,
        f: F,
    ) -> impl Future<Output = Result<Option<Vec<R>>, Self::Error>> + Send
       where Self: LoadBlock,
             F: Fn(TransactionInfo, Insp, ExecutionResult, &EvmState, &StateCacheDb<'_>) -> Result<R, Self::Error> + Send + 'static,
             Setup: FnMut() -> Insp + Send + 'static,
             Insp: for<'a, 'b> Inspector<StateCacheDbRefMutWrapper<'a, 'b>> + Send + 'static,
             R: Send + 'static { ... }
    fn trace_block_with<F, R>(
        &self,
        block_id: BlockId,
        block: Option<Arc<SealedBlockWithSenders<ProviderBlock<Self::Provider>>>>,
        config: TracingInspectorConfig,
        f: F,
    ) -> impl Future<Output = Result<Option<Vec<R>>, Self::Error>> + Send
       where Self: LoadBlock,
             F: Fn(TransactionInfo, TracingInspector, ExecutionResult, &EvmState, &StateCacheDb<'_>) -> Result<R, Self::Error> + Send + 'static,
             R: Send + 'static { ... }
    fn trace_block_inspector<Setup, Insp, F, R>(
        &self,
        block_id: BlockId,
        block: Option<Arc<SealedBlockWithSenders<ProviderBlock<Self::Provider>>>>,
        insp_setup: Setup,
        f: F,
    ) -> impl Future<Output = Result<Option<Vec<R>>, Self::Error>> + Send
       where Self: LoadBlock,
             F: Fn(TransactionInfo, Insp, ExecutionResult, &EvmState, &StateCacheDb<'_>) -> Result<R, Self::Error> + Send + 'static,
             Setup: FnMut() -> Insp + Send + 'static,
             Insp: for<'a, 'b> Inspector<StateCacheDbRefMutWrapper<'a, 'b>> + Send + 'static,
             R: Send + 'static { ... }
    fn apply_pre_execution_changes<DB: Send + Database<Error: Display> + DatabaseCommit>(
        &self,
        block: &SealedBlockWithSenders<ProviderBlock<Self::Provider>>,
        db: &mut DB,
        cfg: &CfgEnvWithHandlerCfg,
        block_env: &BlockEnv,
    ) -> Result<(), Self::Error> { ... }
}

Executes CPU heavy tasks.

Provided Methods

fn inspect<DB, I>( &self, db: DB, env: EnvWithHandlerCfg, inspector: I, ) -> Result<(ResultAndState, EnvWithHandlerCfg), Self::Error>

where DB: Database, EthApiError: From<DB::Error>, I: GetInspector<DB>,

Executes the [EnvWithHandlerCfg] against the given [Database] without committing state changes.

fn inspect_and_return_db<DB, I>( &self, db: DB, env: EnvWithHandlerCfg, inspector: I, ) -> Result<(ResultAndState, EnvWithHandlerCfg, DB), Self::Error>

where DB: Database, EthApiError: From<DB::Error>, I: GetInspector<DB>,

Same as inspect but also returns the database again.

Even though [Database] is also implemented on &mut this is still useful if there are certain trait bounds on the Inspector’s database generic type

fn trace_at<F, R>( &self, env: EnvWithHandlerCfg, config: TracingInspectorConfig, at: BlockId, f: F, ) -> Result<R, Self::Error>

where Self: Call, F: FnOnce(TracingInspector, ResultAndState) -> Result<R, Self::Error>,

Executes the transaction on top of the given [BlockId] with a tracer configured by the config.

The callback is then called with the [TracingInspector] and the [ResultAndState] after the configured [EnvWithHandlerCfg] was inspected.

Caution: this is blocking

fn spawn_trace_at_with_state<F, R>( &self, env: EnvWithHandlerCfg, config: TracingInspectorConfig, at: BlockId, f: F, ) -> impl Future<Output = Result<R, Self::Error>> + Send

where Self: LoadPendingBlock + Call, F: FnOnce(TracingInspector, ResultAndState, StateCacheDb<'_>) -> Result<R, Self::Error> + Send + 'static, R: Send + 'static,

Same as trace_at but also provides the used database to the callback.

Executes the transaction on top of the given [BlockId] with a tracer configured by the config.

The callback is then called with the [TracingInspector] and the [ResultAndState] after the configured [EnvWithHandlerCfg] was inspected.

fn spawn_trace_transaction_in_block<F, R>( &self, hash: B256, config: TracingInspectorConfig, f: F, ) -> impl Future<Output = Result<Option<R>, Self::Error>> + Send

where Self: LoadPendingBlock + LoadTransaction + Call, F: FnOnce(TransactionInfo, TracingInspector, ResultAndState, StateCacheDb<'_>) -> Result<R, Self::Error> + Send + 'static, R: Send + 'static,

Retrieves the transaction if it exists and returns its trace.

Before the transaction is traced, all previous transaction in the block are applied to the state by executing them first. The callback f is invoked with the [ResultAndState] after the transaction was executed and the database that points to the beginning of the transaction.

Note: Implementers should use a threadpool where blocking is allowed, such as BlockingTaskPool.

fn spawn_trace_transaction_in_block_with_inspector<Insp, F, R>( &self, hash: B256, inspector: Insp, f: F, ) -> impl Future<Output = Result<Option<R>, Self::Error>> + Send

where Self: LoadPendingBlock + LoadTransaction + Call, F: FnOnce(TransactionInfo, Insp, ResultAndState, StateCacheDb<'_>) -> Result<R, Self::Error> + Send + 'static, Insp: for<'a, 'b> Inspector<StateCacheDbRefMutWrapper<'a, 'b>> + Send + 'static, R: Send + 'static,

Retrieves the transaction if it exists and returns its trace.

Before the transaction is traced, all previous transaction in the block are applied to the state by executing them first. The callback f is invoked with the [ResultAndState] after the transaction was executed and the database that points to the beginning of the transaction.

Note: Implementers should use a threadpool where blocking is allowed, such as BlockingTaskPool.

fn trace_block_until<F, R>( &self, block_id: BlockId, block: Option<Arc<SealedBlockWithSenders<ProviderBlock<Self::Provider>>>>, highest_index: Option<u64>, config: TracingInspectorConfig, f: F, ) -> impl Future<Output = Result<Option<Vec<R>>, Self::Error>> + Send

where Self: LoadBlock, F: Fn(TransactionInfo, TracingInspector, ExecutionResult, &EvmState, &StateCacheDb<'_>) -> Result<R, Self::Error> + Send + 'static, R: Send + 'static,

Executes all transactions of a block up to a given index.

If a highest_index is given, this will only execute the first highest_index transactions, in other words, it will stop executing transactions after the highest_indexth transaction. If highest_index is None, all transactions are executed.

fn trace_block_until_with_inspector<Setup, Insp, F, R>( &self, block_id: BlockId, block: Option<Arc<SealedBlockWithSenders<ProviderBlock<Self::Provider>>>>, highest_index: Option<u64>, inspector_setup: Setup, f: F, ) -> impl Future<Output = Result<Option<Vec<R>>, Self::Error>> + Send

where Self: LoadBlock, F: Fn(TransactionInfo, Insp, ExecutionResult, &EvmState, &StateCacheDb<'_>) -> Result<R, Self::Error> + Send + 'static, Setup: FnMut() -> Insp + Send + 'static, Insp: for<'a, 'b> Inspector<StateCacheDbRefMutWrapper<'a, 'b>> + Send + 'static, R: Send + 'static,

Executes all transactions of a block.

If a highest_index is given, this will only execute the first highest_index transactions, in other words, it will stop executing transactions after the highest_indexth transaction.

Note: This expect tx index to be 0-indexed, so the first transaction is at index 0.

This accepts a inspector_setup closure that returns the inspector to be used for tracing the transactions.

fn trace_block_with<F, R>( &self, block_id: BlockId, block: Option<Arc<SealedBlockWithSenders<ProviderBlock<Self::Provider>>>>, config: TracingInspectorConfig, f: F, ) -> impl Future<Output = Result<Option<Vec<R>>, Self::Error>> + Send

where Self: LoadBlock, F: Fn(TransactionInfo, TracingInspector, ExecutionResult, &EvmState, &StateCacheDb<'_>) -> Result<R, Self::Error> + Send + 'static, R: Send + 'static,

Executes all transactions of a block and returns a list of callback results invoked for each transaction in the block.

This

1. fetches all transactions of the block
2. configures the EVM evn
3. loops over all transactions and executes them
4. calls the callback with the transaction info, the execution result, the changed state after the transaction [StateProviderDatabase] and the database that points to the state right before the transaction.

fn trace_block_inspector<Setup, Insp, F, R>( &self, block_id: BlockId, block: Option<Arc<SealedBlockWithSenders<ProviderBlock<Self::Provider>>>>, insp_setup: Setup, f: F, ) -> impl Future<Output = Result<Option<Vec<R>>, Self::Error>> + Send

where Self: LoadBlock, F: Fn(TransactionInfo, Insp, ExecutionResult, &EvmState, &StateCacheDb<'_>) -> Result<R, Self::Error> + Send + 'static, Setup: FnMut() -> Insp + Send + 'static, Insp: for<'a, 'b> Inspector<StateCacheDbRefMutWrapper<'a, 'b>> + Send + 'static, R: Send + 'static,

Executes all transactions of a block and returns a list of callback results invoked for each transaction in the block.

This

1. fetches all transactions of the block
2. configures the EVM evn
3. loops over all transactions and executes them
4. calls the callback with the transaction info, the execution result, the changed state after the transaction [EvmState] and the database that points to the state right before the transaction, in other words the state the transaction was executed on: changed_state = tx(cached_state)

This accepts a inspector_setup closure that returns the inspector to be used for tracing a transaction. This is invoked for each transaction.

fn apply_pre_execution_changes<DB: Send + Database<Error: Display> + DatabaseCommit>( &self, block: &SealedBlockWithSenders<ProviderBlock<Self::Provider>>, db: &mut DB, cfg: &CfgEnvWithHandlerCfg, block_env: &BlockEnv, ) -> Result<(), Self::Error>

Applies chain-specific state transitions required before executing a block.

Note: This should only be called when tracing an entire block vs individual transactions. When tracing transaction on top of an already committed block state, those transitions are already applied.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors