Enum HistoryInfo

Source

pub enum HistoryInfo {
    NotYetWritten,
    InChangeset(u64),
    InPlainState,
    MaybeInPlainState,
}

Expand description

Result of a history lookup for an account or storage slot.

Indicates where to find the historical value for a given key at a specific block.

Variants§

§

NotYetWritten

The key is written to, but only after our block (not yet written at the target block). Or it has never been written.

§

InChangeset(u64)

The chunk contains an entry for a write after our block at the given block number. The value should be looked up in the changeset at this block.

§

InPlainState

The chunk does not contain an entry for a write after our block. This can only happen if this is the last chunk, so we need to look in the plain state.

§

MaybeInPlainState

The key may have been written, but due to pruning we may not have changesets and history, so we need to make a plain state lookup.

Implementations§

Source §

impl HistoryInfo

Source

pub const fn from_lookup( found_block: Option<u64>, is_before_first_write: bool, lowest_available: Option<BlockNumber>, ) -> Self

Determines where to find the historical value based on computed shard lookup results.

This is a pure function shared by both MDBX and RocksDB backends.

§Arguments

found_block - The block number from the shard lookup
is_before_first_write - True if the target block is before the first write to this key. This should be computed as: rank == 0 && found_block != Some(block_number) && !has_previous_shard where has_previous_shard comes from a lazy cursor.prev() check.
lowest_available - Lowest block where history is available (pruning boundary)

Trait Implementations§

Source §

impl Debug for HistoryInfo

Source §

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

Source §

impl PartialEq for HistoryInfo

Source §

fn eq(&self, other: &HistoryInfo) -> bool

Tests for self and other values to be equal, and is used by ==.

1.0.0 · Source§

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

Source §

impl StructuralPartialEq for HistoryInfo

Auto Trait Implementations§

§

impl RefUnwindSafe for HistoryInfo

§

impl UnwindSafe for HistoryInfo

Blanket Implementations§

Source §

impl<T> Any for T
where T: 'static + ?Sized,

Source §

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

Source §

impl<T> Borrow<T> for T
where T: ?Sized,

Source §

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

Source §

impl<T> BorrowMut<T> for T
where T: ?Sized,

Source §

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

§

impl<T> Conv for T

§

fn conv<T>(self) -> T
where Self: Into<T>,

Converts self into T using Into<T>. Read more

§

impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

§

fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.

§

impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

§

fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more

§

impl<T> FmtForward for T

§

fn fmt_binary(self) -> FmtBinary<Self>
where Self: Binary,

Causes self to use its Binary implementation when Debug-formatted.

§

fn fmt_display(self) -> FmtDisplay<Self>
where Self: Display,

Causes self to use its Display implementation when Debug-formatted.

§

fn fmt_lower_exp(self) -> FmtLowerExp<Self>
where Self: LowerExp,

Causes self to use its LowerExp implementation when Debug-formatted.

§

fn fmt_lower_hex(self) -> FmtLowerHex<Self>
where Self: LowerHex,

Causes self to use its LowerHex implementation when Debug-formatted.

§

fn fmt_octal(self) -> FmtOctal<Self>
where Self: Octal,

Causes self to use its Octal implementation when Debug-formatted.

§

fn fmt_pointer(self) -> FmtPointer<Self>
where Self: Pointer,

Causes self to use its Pointer implementation when Debug-formatted.

§

fn fmt_upper_exp(self) -> FmtUpperExp<Self>
where Self: UpperExp,

Causes self to use its UpperExp implementation when Debug-formatted.

§

fn fmt_upper_hex(self) -> FmtUpperHex<Self>
where Self: UpperHex,

Causes self to use its UpperHex implementation when Debug-formatted.

§

fn fmt_list(self) -> FmtList<Self>
where &'a Self: for<'a> IntoIterator,

Formats each item in a sequence. Read more

Source §

impl<T> From<T> for T

Source §

fn from(t: T) -> T

Returns the argument unchanged.

§

impl<TxEnv, T> FromRecoveredTx<&T> for TxEnv
where TxEnv: FromRecoveredTx<T>,

§

fn from_recovered_tx(tx: &&T, sender: Address) -> TxEnv

Builds a [TxEnv] from a transaction and a sender address.

§

impl<TxEnv, T> FromTxWithEncoded<&T> for TxEnv
where TxEnv: FromTxWithEncoded<T>,

§

fn from_encoded_tx(tx: &&T, sender: Address, encoded: Bytes) -> TxEnv

Builds a [TxEnv] from a transaction, its sender, and encoded transaction bytes.

§

impl<T> FutureExt for T

§

fn with_context(self, otel_cx: Context) -> WithContext<Self>

Attaches the provided Context to this type, returning a WithContext wrapper. Read more

§

fn with_current_context(self) -> WithContext<Self>

Attaches the current Context to this type, returning a WithContext wrapper. Read more

§

impl<T> Instrument for T

§

fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more

§

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

Source §

impl<T, U> Into for T
where U: From<T>,

Source §

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Source §

impl<T> IntoEither for T

Source §

fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

Source §

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

§

impl<T> IntoRequest<T> for T

§

fn into_request(self) -> Request<T>

Wrap the input message T in a tonic::Request

§

impl<L> LayerExt<L> for L

§

fn named_layer<S>(&self, service: S) -> Layered<<L as Layer<S>>::Service, S>
where L: Layer<S>,

Applies the layer to a service and wraps it in [Layered].

§

impl<T> Pipe for T
where T: ?Sized,

§

fn pipe<R>(self, func: impl FnOnce(Self) -> R) -> R
where Self: Sized,

Pipes by value. This is generally the method you want to use. Read more

§

fn pipe_ref<'a, R>(&'a self, func: impl FnOnce(&'a Self) -> R) -> R
where R: 'a,

Borrows self and passes that borrow into the pipe function. Read more

§

fn pipe_ref_mut<'a, R>(&'a mut self, func: impl FnOnce(&'a mut Self) -> R) -> R
where R: 'a,

Mutably borrows self and passes that borrow into the pipe function. Read more

§

fn pipe_borrow<'a, B, R>(&'a self, func: impl FnOnce(&'a B) -> R) -> R
where Self: Borrow, B: 'a + ?Sized, R: 'a,

Borrows self, then passes self.borrow() into the pipe function. Read more

§

fn pipe_borrow_mut<'a, B, R>( &'a mut self, func: impl FnOnce(&'a mut B) -> R, ) -> R
where Self: BorrowMut, B: 'a + ?Sized, R: 'a,

Mutably borrows self, then passes self.borrow_mut() into the pipe function. Read more

§

fn pipe_as_ref<'a, U, R>(&'a self, func: impl FnOnce(&'a U) -> R) -> R
where Self: AsRef, U: 'a + ?Sized, R: 'a,

Borrows self, then passes self.as_ref() into the pipe function.

§

fn pipe_as_mut<'a, U, R>(&'a mut self, func: impl FnOnce(&'a mut U) -> R) -> R
where Self: AsMut, U: 'a + ?Sized, R: 'a,

Mutably borrows self, then passes self.as_mut() into the pipe function.

§

fn pipe_deref<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R
where Self: Deref<Target = T>, T: 'a + ?Sized, R: 'a,

Borrows self, then passes self.deref() into the pipe function.

§

fn pipe_deref_mut<'a, T, R>( &'a mut self, func: impl FnOnce(&'a mut T) -> R, ) -> R
where Self: DerefMut<Target = T> + Deref, T: 'a + ?Sized, R: 'a,

Mutably borrows self, then passes self.deref_mut() into the pipe function.

§

impl<T> Pointable for T

§

type Init = T

The type for initializers.

§

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more

§

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more

§

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more

§

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more

§

impl<T> PolicyExt for T
where T: ?Sized,

§

fn and<P, B, E>(self, other: P) -> And<T, P>
where T: Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns [Action::Follow] only if self and other return Action::Follow. Read more

§

fn or<P, B, E>(self, other: P) -> Or<T, P>
where T: Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns [Action::Follow] if either self or other returns Action::Follow. Read more

Source §

impl<T> Same for T

Source §

type Output = T

Should always be Self

§

impl<T> ServiceExt for T

§

fn propagate_header(self, header: HeaderName) -> PropagateHeader<Self>
where Self: Sized,

Available on crate feature propagate-header only.

Propagate a header from the request to the response. Read more

§

fn add_extension<T>(self, value: T) -> AddExtension<Self, T>
where Self: Sized,

Available on crate feature add-extension only.

Add some shareable value to request extensions. Read more

§

fn map_request_body<F>(self, f: F) -> MapRequestBody<Self, F>
where Self: Sized,

Available on crate feature map-request-body only.

Apply a transformation to the request body. Read more

§

fn map_response_body<F>(self, f: F) -> MapResponseBody<Self, F>
where Self: Sized,

Available on crate feature map-response-body only.

Apply a transformation to the response body. Read more

§

fn compression(self) -> Compression<Self>
where Self: Sized,

Available on crate features compression-br or compression-deflate or compression-gzip or compression-zstd only.

Compresses response bodies. Read more

§

fn decompression(self) -> Decompression<Self>
where Self: Sized,

Available on crate features decompression-br or decompression-deflate or decompression-gzip or decompression-zstd only.

Decompress response bodies. Read more

§

fn trace_for_http(self) -> Trace<Self, SharedClassifier<ServerErrorsAsFailures>>
where Self: Sized,

Available on crate feature trace only.

High level tracing that classifies responses using HTTP status codes. Read more

§

fn trace_for_grpc(self) -> Trace<Self, SharedClassifier<GrpcErrorsAsFailures>>
where Self: Sized,

Available on crate feature trace only.

High level tracing that classifies responses using gRPC headers. Read more

§

fn follow_redirects(self) -> FollowRedirect<Self>
where Self: Sized,

Available on crate feature follow-redirect only.

Follow redirect resposes using the Standard policy. Read more

§

fn sensitive_headers( self, headers: impl IntoIterator<Item = HeaderName>, ) -> SetSensitiveRequestHeaders<SetSensitiveResponseHeaders<Self>>
where Self: Sized,

Available on crate feature sensitive-headers only.

Mark headers as sensitive on both requests and responses. Read more

§

fn sensitive_request_headers( self, headers: impl IntoIterator<Item = HeaderName>, ) -> SetSensitiveRequestHeaders<Self>
where Self: Sized,

Available on crate feature sensitive-headers only.

Mark headers as sensitive on requests. Read more

§

fn sensitive_response_headers( self, headers: impl IntoIterator<Item = HeaderName>, ) -> SetSensitiveResponseHeaders<Self>
where Self: Sized,

Available on crate feature sensitive-headers only.

Mark headers as sensitive on responses. Read more

§