Struct zebra_state::NonFinalizedState

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pub struct NonFinalizedState {
    chain_set: BTreeSet<Arc<Chain>>,
    pub network: Network,
    should_count_metrics: bool,
    chain_count_bar: Option<Tx>,
    chain_fork_length_bars: Vec<Tx>,
}
Expand description

The state of the chains in memory, including queued blocks.

Clones of the non-finalized state contain independent copies of the chains. This is different from FinalizedState::clone(), which returns a shared reference to the database.

Most chain data is clone-on-write using Arc.

Fields§

§chain_set: BTreeSet<Arc<Chain>>

Verified, non-finalized chains, in ascending work order.

The best chain is NonFinalizedState::best_chain(), or chain_iter().next(). Using chain_set.last() or chain_set.iter().next_back() is deprecated, callers should migrate to chain_iter().next().

§network: Network

The configured Zcash network.

§should_count_metrics: bool

Configures the non-finalized state to count metrics.

Used for skipping metrics and progress bars when testing block proposals with a commit to a cloned non-finalized state.

§chain_count_bar: Option<Tx>

Number of chain forks transmitter.

§chain_fork_length_bars: Vec<Tx>

A chain fork length transmitter for each Chain in chain_set.

Because chain_set contains Arc<Chain>s, it is difficult to update the metrics state on each chain. (Arcs are read-only, and we don’t want to clone them just for metrics.)

Implementations§

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impl NonFinalizedState

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pub fn new(network: &Network) -> NonFinalizedState

Returns a new non-finalized state for network.

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pub fn eq_internal_state(&self, other: &NonFinalizedState) -> bool

Is the internal state of self the same as other?

Chain has a custom Eq implementation based on proof of work, which is used to select the best chain. So we can’t derive Eq for NonFinalizedState.

Unlike the custom trait impl, this method returns true if the entire internal state of two non-finalized states is equal.

If the internal states are different, it returns false, even if the chains and blocks are equal.

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pub fn chain_iter(&self) -> impl Iterator<Item = &Arc<Chain>>

Returns an iterator over the non-finalized chains, with the best chain first.

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fn insert_with<F>(&mut self, chain: Arc<Chain>, chain_filter: F)
where F: FnOnce(&mut BTreeSet<Arc<Chain>>),

Insert chain into self.chain_set, apply chain_filter to the chains, then limit the number of tracked chains.

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fn insert(&mut self, chain: Arc<Chain>)

Insert chain into self.chain_set, then limit the number of tracked chains.

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pub fn finalize(&mut self) -> FinalizableBlock

Finalize the lowest height block in the non-finalized portion of the best chain and update all side-chains to match.

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pub fn commit_block( &mut self, prepared: SemanticallyVerifiedBlock, finalized_state: &ZebraDb, ) -> Result<(), ValidateContextError>

Commit block to the non-finalized state, on top of:

  • an existing chain’s tip, or
  • a newly forked chain.
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pub fn commit_new_chain( &mut self, prepared: SemanticallyVerifiedBlock, finalized_state: &ZebraDb, ) -> Result<(), ValidateContextError>

Commit block to the non-finalized state as a new chain where its parent is the finalized tip.

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fn validate_and_commit( &self, new_chain: Arc<Chain>, prepared: SemanticallyVerifiedBlock, finalized_state: &ZebraDb, ) -> Result<Arc<Chain>, ValidateContextError>

Contextually validate prepared using finalized_state. If validation succeeds, push prepared onto new_chain.

new_chain should start as a clone of the parent chain fork, or the finalized tip.

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fn validate_and_update_parallel( new_chain: Arc<Chain>, contextual: ContextuallyVerifiedBlock, sprout_final_treestates: HashMap<Root, Arc<NoteCommitmentTree>>, ) -> Result<Arc<Chain>, ValidateContextError>

Validate contextual and update new_chain, doing CPU-intensive work in parallel batches.

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pub fn best_chain_len(&self) -> Option<u32>

Returns the length of the non-finalized portion of the current best chain or None if the best chain has no blocks.

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pub fn any_chain_contains(&self, hash: &Hash) -> bool

Returns true if hash is contained in the non-finalized portion of any known chain.

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pub fn find_chain<P>(&self, predicate: P) -> Option<Arc<Chain>>
where P: FnMut(&Chain) -> bool,

Returns the first chain satisfying the given predicate.

If multiple chains satisfy the predicate, returns the chain with the highest difficulty. (Using the tip block hash tie-breaker.)

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pub fn any_utxo(&self, outpoint: &OutPoint) -> Option<Utxo>

Returns the transparent::Utxo pointed to by the given transparent::OutPoint if it is present in any chain.

UTXOs are returned regardless of whether they have been spent.

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pub fn any_block_by_hash(&self, hash: Hash) -> Option<Arc<Block>>

Returns the block with the given hash in any chain.

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pub fn any_prev_block_hash_for_hash(&self, hash: Hash) -> Option<Hash>

Returns the previous block hash for the given block hash in any chain.

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pub fn best_hash(&self, height: Height) -> Option<Hash>

Returns the hash for a given block::Height if it is present in the best chain.

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pub fn best_tip(&self) -> Option<(Height, Hash)>

Returns the tip of the best chain.

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pub fn best_tip_block(&self) -> Option<&ContextuallyVerifiedBlock>

Returns the block at the tip of the best chain.

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pub fn best_height_by_hash(&self, hash: Hash) -> Option<Height>

Returns the height of hash in the best chain.

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pub fn any_height_by_hash(&self, hash: Hash) -> Option<Height>

Returns the height of hash in any chain.

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pub fn best_contains_sprout_nullifier( &self, sprout_nullifier: &Nullifier, ) -> bool

Returns true if the best chain contains sprout_nullifier.

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pub fn best_contains_sapling_nullifier( &self, sapling_nullifier: &Nullifier, ) -> bool

Returns true if the best chain contains sapling_nullifier.

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pub fn best_contains_orchard_nullifier( &self, orchard_nullifier: &Nullifier, ) -> bool

Returns true if the best chain contains orchard_nullifier.

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pub fn best_chain(&self) -> Option<&Arc<Chain>>

Return the non-finalized portion of the current best chain.

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pub fn chain_count(&self) -> usize

Return the number of chains.

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fn parent_chain( &self, parent_hash: Hash, ) -> Result<Arc<Chain>, ValidateContextError>

Return the chain whose tip block hash is parent_hash.

The chain can be an existing chain in the non-finalized state, or a freshly created fork.

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fn should_count_metrics(&self) -> bool

Should this NonFinalizedState instance track metrics and progress bars?

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fn update_metrics_for_committed_block(&self, height: Height, hash: Hash)

Update the metrics after block is committed

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fn update_metrics_for_chains(&self)

Update the metrics after self.chain_set is modified

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fn update_metrics_bars(&mut self)

Update the progress bars after any chain is modified. This includes both chain forks and committed blocks.

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pub fn disable_metrics(&mut self)

Stop tracking metrics for this non-finalized state and all its chains.

Trait Implementations§

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impl Clone for NonFinalizedState

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fn clone(&self) -> Self

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for NonFinalizedState

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

Formats the value using the given formatter. Read more
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impl Drop for NonFinalizedState

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fn drop(&mut self)

Executes the destructor for this type. Read more

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Change the foreground color to bright magenta
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Change the background color to bright magenta
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Change the foreground color to bright purple
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Change the foreground color to bright cyan
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Change the background color to bright cyan
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Change the foreground color to bright white
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Set the foreground color to a specific RGB value.
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Sets the foreground color to an RGB value.
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Sets the background color to an RGB value.
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Set the background color generically. Read more
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fn black(&self) -> FgColorDisplay<'_, Black, Self>

Change the foreground color to black
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Change the background color to black
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Change the foreground color to red
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Change the background color to red
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Change the foreground color to green
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Change the background color to green
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Change the foreground color to yellow
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Change the background color to yellow
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Change the foreground color to blue
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Change the background color to blue
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Change the foreground color to magenta
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Change the background color to magenta
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Change the foreground color to purple
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Change the background color to purple
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Change the foreground color to cyan
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Change the background color to cyan
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fn white(&self) -> FgColorDisplay<'_, White, Self>

Change the foreground color to white
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Change the background color to white
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Change the foreground color to the terminal default
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Change the background color to the terminal default
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Change the foreground color to bright black
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fn on_bright_black(&self) -> BgColorDisplay<'_, BrightBlack, Self>

Change the background color to bright black
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fn bright_red(&self) -> FgColorDisplay<'_, BrightRed, Self>

Change the foreground color to bright red
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fn on_bright_red(&self) -> BgColorDisplay<'_, BrightRed, Self>

Change the background color to bright red
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fn bright_green(&self) -> FgColorDisplay<'_, BrightGreen, Self>

Change the foreground color to bright green
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fn on_bright_green(&self) -> BgColorDisplay<'_, BrightGreen, Self>

Change the background color to bright green
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fn bright_yellow(&self) -> FgColorDisplay<'_, BrightYellow, Self>

Change the foreground color to bright yellow
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fn on_bright_yellow(&self) -> BgColorDisplay<'_, BrightYellow, Self>

Change the background color to bright yellow
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fn bright_blue(&self) -> FgColorDisplay<'_, BrightBlue, Self>

Change the foreground color to bright blue
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fn on_bright_blue(&self) -> BgColorDisplay<'_, BrightBlue, Self>

Change the background color to bright blue
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fn bright_magenta(&self) -> FgColorDisplay<'_, BrightMagenta, Self>

Change the foreground color to bright magenta
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fn on_bright_magenta(&self) -> BgColorDisplay<'_, BrightMagenta, Self>

Change the background color to bright magenta
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fn bright_purple(&self) -> FgColorDisplay<'_, BrightMagenta, Self>

Change the foreground color to bright purple
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fn on_bright_purple(&self) -> BgColorDisplay<'_, BrightMagenta, Self>

Change the background color to bright purple
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fn bright_cyan(&self) -> FgColorDisplay<'_, BrightCyan, Self>

Change the foreground color to bright cyan
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fn on_bright_cyan(&self) -> BgColorDisplay<'_, BrightCyan, Self>

Change the background color to bright cyan
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fn bright_white(&self) -> FgColorDisplay<'_, BrightWhite, Self>

Change the foreground color to bright white
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fn on_bright_white(&self) -> BgColorDisplay<'_, BrightWhite, Self>

Change the background color to bright white
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fn bold(&self) -> BoldDisplay<'_, Self>

Make the text bold
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fn dimmed(&self) -> DimDisplay<'_, Self>

Make the text dim
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fn italic(&self) -> ItalicDisplay<'_, Self>

Make the text italicized
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fn underline(&self) -> UnderlineDisplay<'_, Self>

Make the text italicized
Make the text blink
Make the text blink (but fast!)
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fn reversed(&self) -> ReversedDisplay<'_, Self>

Swap the foreground and background colors
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fn hidden(&self) -> HiddenDisplay<'_, Self>

Hide the text
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fn strikethrough(&self) -> StrikeThroughDisplay<'_, Self>

Cross out the text
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fn color<Color>(&self, color: Color) -> FgDynColorDisplay<'_, Color, Self>
where Color: DynColor,

Set the foreground color at runtime. Only use if you do not know which color will be used at compile-time. If the color is constant, use either OwoColorize::fg or a color-specific method, such as OwoColorize::green, Read more
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fn on_color<Color>(&self, color: Color) -> BgDynColorDisplay<'_, Color, Self>
where Color: DynColor,

Set the background color at runtime. Only use if you do not know what color to use at compile-time. If the color is constant, use either OwoColorize::bg or a color-specific method, such as OwoColorize::on_yellow, Read more
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fn fg_rgb<const R: u8, const G: u8, const B: u8>( &self, ) -> FgColorDisplay<'_, CustomColor<R, G, B>, Self>

Set the foreground color to a specific RGB value.
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fn bg_rgb<const R: u8, const G: u8, const B: u8>( &self, ) -> BgColorDisplay<'_, CustomColor<R, G, B>, Self>

Set the background color to a specific RGB value.
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fn truecolor(&self, r: u8, g: u8, b: u8) -> FgDynColorDisplay<'_, Rgb, Self>

Sets the foreground color to an RGB value.
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fn on_truecolor(&self, r: u8, g: u8, b: u8) -> BgDynColorDisplay<'_, Rgb, Self>

Sets the background color to an RGB value.
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fn style(&self, style: Style) -> Styled<&Self>

Apply a runtime-determined style
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Mutably borrows self, then passes self.borrow_mut() into the pipe function. Read more
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fn pipe_as_ref<'a, U, R>(&'a self, func: impl FnOnce(&'a U) -> R) -> R
where Self: AsRef<U>, U: 'a + ?Sized, R: 'a,

Borrows self, then passes self.as_ref() into the pipe function.
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fn pipe_as_mut<'a, U, R>(&'a mut self, func: impl FnOnce(&'a mut U) -> R) -> R
where Self: AsMut<U>, U: 'a + ?Sized, R: 'a,

Mutably borrows self, then passes self.as_mut() into the pipe function.
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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.
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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.
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impl<T> Pointable for T

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const ALIGN: usize = _

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<Response, Error> ResponseResult<Response, Error> for Response

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fn into_result(self) -> Result<Response, Error>

Converts the type into a Result that can be sent as a response.
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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T> Tap for T

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fn tap(self, func: impl FnOnce(&Self)) -> Self

Immutable access to a value. Read more
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fn tap_mut(self, func: impl FnOnce(&mut Self)) -> Self

Mutable access to a value. Read more
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fn tap_borrow<B>(self, func: impl FnOnce(&B)) -> Self
where Self: Borrow<B>, B: ?Sized,

Immutable access to the Borrow<B> of a value. Read more
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fn tap_borrow_mut<B>(self, func: impl FnOnce(&mut B)) -> Self
where Self: BorrowMut<B>, B: ?Sized,

Mutable access to the BorrowMut<B> of a value. Read more
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fn tap_ref<R>(self, func: impl FnOnce(&R)) -> Self
where Self: AsRef<R>, R: ?Sized,

Immutable access to the AsRef<R> view of a value. Read more
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fn tap_ref_mut<R>(self, func: impl FnOnce(&mut R)) -> Self
where Self: AsMut<R>, R: ?Sized,

Mutable access to the AsMut<R> view of a value. Read more
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fn tap_deref<T>(self, func: impl FnOnce(&T)) -> Self
where Self: Deref<Target = T>, T: ?Sized,

Immutable access to the Deref::Target of a value. Read more
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fn tap_deref_mut<T>(self, func: impl FnOnce(&mut T)) -> Self
where Self: DerefMut<Target = T> + Deref, T: ?Sized,

Mutable access to the Deref::Target of a value. Read more
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fn tap_dbg(self, func: impl FnOnce(&Self)) -> Self

Calls .tap() only in debug builds, and is erased in release builds.
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fn tap_mut_dbg(self, func: impl FnOnce(&mut Self)) -> Self

Calls .tap_mut() only in debug builds, and is erased in release builds.
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fn tap_borrow_dbg<B>(self, func: impl FnOnce(&B)) -> Self
where Self: Borrow<B>, B: ?Sized,

Calls .tap_borrow() only in debug builds, and is erased in release builds.
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fn tap_borrow_mut_dbg<B>(self, func: impl FnOnce(&mut B)) -> Self
where Self: BorrowMut<B>, B: ?Sized,

Calls .tap_borrow_mut() only in debug builds, and is erased in release builds.
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fn tap_ref_dbg<R>(self, func: impl FnOnce(&R)) -> Self
where Self: AsRef<R>, R: ?Sized,

Calls .tap_ref() only in debug builds, and is erased in release builds.
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fn tap_ref_mut_dbg<R>(self, func: impl FnOnce(&mut R)) -> Self
where Self: AsMut<R>, R: ?Sized,

Calls .tap_ref_mut() only in debug builds, and is erased in release builds.
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fn tap_deref_dbg<T>(self, func: impl FnOnce(&T)) -> Self
where Self: Deref<Target = T>, T: ?Sized,

Calls .tap_deref() only in debug builds, and is erased in release builds.
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fn tap_deref_mut_dbg<T>(self, func: impl FnOnce(&mut T)) -> Self
where Self: DerefMut<Target = T> + Deref, T: ?Sized,

Calls .tap_deref_mut() only in debug builds, and is erased in release builds.
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T> TryConv for T

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fn try_conv<T>(self) -> Result<T, Self::Error>
where Self: TryInto<T>,

Attempts to convert self into T using TryInto<T>. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a [WithDispatch] wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a [WithDispatch] wrapper. Read more
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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more