Struct zebra_state::DiskWriteBatch

source ·
pub struct DiskWriteBatch {
    batch: WriteBatch,
}
Expand description

Wrapper struct to ensure low-level database writes go through the correct API.

[rocksdb::WriteBatch] is a batched set of database updates, which must be written to the database using DiskDb::write(batch).

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§batch: WriteBatch

The inner RocksDB write batch.

Implementations§

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impl DiskWriteBatch

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pub fn new() -> Self

Creates and returns a new transactional batch write.

§Correctness

Each block must be written to the state inside a batch, so that:

  • concurrent ReadStateService queries don’t see half-written blocks, and
  • if Zebra calls exit, panics, or crashes, half-written blocks are rolled back.
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impl DiskWriteBatch

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pub fn prepare_block_batch( &mut self, zebra_db: &ZebraDb, network: &Network, finalized: &FinalizedBlock, new_outputs_by_out_loc: BTreeMap<OutputLocation, Utxo>, spent_utxos_by_outpoint: HashMap<OutPoint, Utxo>, spent_utxos_by_out_loc: BTreeMap<OutputLocation, Utxo>, address_balances: HashMap<Address, AddressBalanceLocation>, value_pool: ValueBalance<NonNegative>, prev_note_commitment_trees: Option<NoteCommitmentTrees>, ) -> Result<(), BoxError>

Prepare a database batch containing finalized.block, and return it (without actually writing anything).

If this method returns an error, it will be propagated, and the batch should not be written to the database.

§Errors
  • Propagates any errors from updating history tree, note commitment trees, or value pools
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pub fn prepare_block_header_and_transaction_data_batch( &mut self, db: &DiskDb, finalized: &FinalizedBlock, ) -> Result<(), BoxError>

Prepare a database batch containing the block header and transaction data from finalized.block, and return it (without actually writing anything).

§Errors
  • This method does not currently return any errors.
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impl DiskWriteBatch

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pub fn update_history_tree(&mut self, db: &ZebraDb, tree: &HistoryTree)

Updates the history tree for the tip, if it is not empty.

The batch must be written to the database by the caller.

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pub fn delete_range_history_tree( &mut self, db: &ZebraDb, from: &Height, until_strictly_before: &Height, )

Legacy method: Deletes the range of history trees at the given Heights. Doesn’t delete the upper bound.

From state format 25.3.0 onwards, the history trees are indexed by an empty key, so this method does nothing.

The batch must be written to the database by the caller.

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pub fn prepare_chain_value_pools_batch( &mut self, db: &ZebraDb, finalized: &FinalizedBlock, utxos_spent_by_block: HashMap<OutPoint, Utxo>, value_pool: ValueBalance<NonNegative>, ) -> Result<(), BoxError>

Prepare a database batch containing the chain value pool update from finalized.block, and return it (without actually writing anything).

If this method returns an error, it will be propagated, and the batch should not be written to the database.

§Errors
  • Propagates any errors from updating value pools
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impl DiskWriteBatch

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pub fn prepare_shielded_transaction_batch( &mut self, db: &DiskDb, finalized: &FinalizedBlock, ) -> Result<(), BoxError>

Prepare a database batch containing finalized.block’s shielded transaction indexes, and return it (without actually writing anything).

If this method returns an error, it will be propagated, and the batch should not be written to the database.

§Errors
  • Propagates any errors from updating note commitment trees
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pub fn prepare_nullifier_batch( &mut self, db: &DiskDb, transaction: &Transaction, ) -> Result<(), BoxError>

Prepare a database batch containing finalized.block’s nullifiers, and return it (without actually writing anything).

§Errors
  • This method doesn’t currently return any errors, but it might in future
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pub fn prepare_trees_batch( &mut self, zebra_db: &ZebraDb, finalized: &FinalizedBlock, prev_note_commitment_trees: Option<NoteCommitmentTrees>, ) -> Result<(), BoxError>

Prepare a database batch containing the note commitment and history tree updates from finalized.block, and return it (without actually writing anything).

If this method returns an error, it will be propagated, and the batch should not be written to the database.

§Errors
  • Propagates any errors from updating the history tree
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pub fn update_sprout_tree( &mut self, zebra_db: &ZebraDb, tree: &NoteCommitmentTree, )

Updates the Sprout note commitment tree for the tip, and the Sprout anchors.

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pub fn delete_range_sprout_tree( &mut self, zebra_db: &ZebraDb, from: &Height, to: &Height, )

Legacy method: Deletes the range of Sprout note commitment trees at the given Heights. Doesn’t delete anchors from the anchor index. Doesn’t delete the upper bound.

From state format 25.3.0 onwards, the Sprout trees are indexed by an empty key, so this method does nothing.

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pub fn delete_sprout_anchor(&mut self, zebra_db: &ZebraDb, anchor: &Root)

Deletes the given Sprout note commitment tree anchor.

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pub fn create_sapling_tree( &mut self, zebra_db: &ZebraDb, height: &Height, tree: &NoteCommitmentTree, )

Inserts or overwrites the Sapling note commitment tree at the given Height, and the Sapling anchors.

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pub fn insert_sapling_subtree( &mut self, zebra_db: &ZebraDb, subtree: &NoteCommitmentSubtree<Node>, )

Inserts the Sapling note commitment subtree into the batch.

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pub fn delete_sapling_tree(&mut self, zebra_db: &ZebraDb, height: &Height)

Deletes the Sapling note commitment tree at the given Height.

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pub fn delete_range_sapling_tree( &mut self, zebra_db: &ZebraDb, from: &Height, to: &Height, )

Deletes the range of Sapling note commitment trees at the given Heights. Doesn’t delete anchors from the anchor index. Doesn’t delete the upper bound.

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pub fn delete_sapling_anchor(&mut self, zebra_db: &ZebraDb, anchor: &Root)

Deletes the given Sapling note commitment tree anchor.

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pub fn delete_range_sapling_subtree( &mut self, zebra_db: &ZebraDb, from: NoteCommitmentSubtreeIndex, to: NoteCommitmentSubtreeIndex, )

Deletes the range of Sapling subtrees at the given NoteCommitmentSubtreeIndexes. Doesn’t delete the upper bound.

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pub fn create_orchard_tree( &mut self, zebra_db: &ZebraDb, height: &Height, tree: &NoteCommitmentTree, )

Inserts or overwrites the Orchard note commitment tree at the given Height, and the Orchard anchors.

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pub fn insert_orchard_subtree( &mut self, zebra_db: &ZebraDb, subtree: &NoteCommitmentSubtree<Node>, )

Inserts the Orchard note commitment subtree into the batch.

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pub fn delete_orchard_tree(&mut self, zebra_db: &ZebraDb, height: &Height)

Deletes the Orchard note commitment tree at the given Height.

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pub fn delete_range_orchard_tree( &mut self, zebra_db: &ZebraDb, from: &Height, to: &Height, )

Deletes the range of Orchard note commitment trees at the given Heights. Doesn’t delete anchors from the anchor index. Doesn’t delete the upper bound.

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pub fn delete_orchard_anchor(&mut self, zebra_db: &ZebraDb, anchor: &Root)

Deletes the given Orchard note commitment tree anchor.

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pub fn delete_range_orchard_subtree( &mut self, zebra_db: &ZebraDb, from: NoteCommitmentSubtreeIndex, to: NoteCommitmentSubtreeIndex, )

Deletes the range of Orchard subtrees at the given NoteCommitmentSubtreeIndexes. Doesn’t delete the upper bound.

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impl DiskWriteBatch

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pub fn prepare_transparent_transaction_batch( &mut self, db: &DiskDb, network: &Network, finalized: &FinalizedBlock, new_outputs_by_out_loc: &BTreeMap<OutputLocation, Utxo>, spent_utxos_by_outpoint: &HashMap<OutPoint, Utxo>, spent_utxos_by_out_loc: &BTreeMap<OutputLocation, Utxo>, address_balances: HashMap<Address, AddressBalanceLocation>, ) -> Result<(), BoxError>

Prepare a database batch containing finalized.block’s transparent transaction indexes, and return it (without actually writing anything).

If this method returns an error, it will be propagated, and the batch should not be written to the database.

§Errors
  • Propagates any errors from updating note commitment trees
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pub fn prepare_new_transparent_outputs_batch( &mut self, db: &DiskDb, network: &Network, new_outputs_by_out_loc: &BTreeMap<OutputLocation, Utxo>, address_balances: &mut HashMap<Address, AddressBalanceLocation>, ) -> Result<(), BoxError>

Prepare a database batch for the new UTXOs in new_outputs_by_out_loc.

Adds the following changes to this batch:

  • insert created UTXOs,
  • insert transparent address UTXO index entries, and
  • insert transparent address transaction entries, without actually writing anything.

Also modifies the address_balances for these new UTXOs.

§Errors
  • This method doesn’t currently return any errors, but it might in future
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pub fn prepare_spent_transparent_outputs_batch( &mut self, db: &DiskDb, network: &Network, spent_utxos_by_out_loc: &BTreeMap<OutputLocation, Utxo>, address_balances: &mut HashMap<Address, AddressBalanceLocation>, ) -> Result<(), BoxError>

Prepare a database batch for the spent outputs in spent_utxos_by_out_loc.

Adds the following changes to this batch:

  • delete spent UTXOs, and
  • delete transparent address UTXO index entries, without actually writing anything.

Also modifies the address_balances for these new UTXOs.

§Errors
  • This method doesn’t currently return any errors, but it might in future
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pub fn prepare_spending_transparent_tx_ids_batch( &mut self, db: &DiskDb, network: &Network, spending_tx_location: TransactionLocation, transaction: &Transaction, spent_utxos_by_outpoint: &HashMap<OutPoint, Utxo>, address_balances: &HashMap<Address, AddressBalanceLocation>, ) -> Result<(), BoxError>

Prepare a database batch indexing the transparent addresses that spent in this transaction.

Adds the following changes to this batch:

  • index spending transactions for each spent transparent output (this is different from the transaction that created the output), without actually writing anything.
§Errors
  • This method doesn’t currently return any errors, but it might in future
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pub fn prepare_transparent_balances_batch( &mut self, db: &DiskDb, address_balances: HashMap<Address, AddressBalanceLocation>, ) -> Result<(), BoxError>

Prepare a database batch containing finalized.block’s:

  • transparent address balance changes, and return it (without actually writing anything).
§Errors
  • This method doesn’t currently return any errors, but it might in future

Trait Implementations§

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impl Debug for DiskWriteBatch

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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 Default for DiskWriteBatch

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fn default() -> DiskWriteBatch

Returns the “default value” for a type. Read more
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impl PartialEq for DiskWriteBatch

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

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl WriteDisk for DiskWriteBatch

§Deprecation

These impls should not be used in new code, use WriteTypedBatch instead.

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fn zs_insert<C, K, V>(&mut self, cf: &C, key: K, value: V)
where C: AsColumnFamilyRef, K: IntoDisk + Debug, V: IntoDisk,

Serialize and insert the given key and value into a rocksdb column family, overwriting any existing value for key.
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fn zs_delete<C, K>(&mut self, cf: &C, key: K)
where C: AsColumnFamilyRef, K: IntoDisk + Debug,

Remove the given key from a rocksdb column family, if it exists.
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fn zs_delete_range<C, K>(&mut self, cf: &C, from: K, until_strictly_before: K)
where C: AsColumnFamilyRef, K: IntoDisk + Debug,

Delete the given key range from a rocksdb column family, if it exists, including from and excluding until_strictly_before.
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impl Eq for DiskWriteBatch

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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 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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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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Change the background color to bright black
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Change the foreground color to bright red
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Change the background color to bright red
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Change the foreground color to bright green
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Change the background color to bright green
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Change the foreground color to bright yellow
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Change the background color to bright yellow
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Change the foreground color to bright blue
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Change the background color to bright blue
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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 background 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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Change the background color to bright white
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Make the text bold
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Set the background 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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Apply a runtime-determined style
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Set the foreground color generically Read more
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where C: Color,

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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fn on_black(&self) -> BgColorDisplay<'_, Black, Self>

Change the background color to black
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fn red(&self) -> FgColorDisplay<'_, Red, Self>

Change the foreground color to red
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fn on_red(&self) -> BgColorDisplay<'_, Red, Self>

Change the background color to red
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fn green(&self) -> FgColorDisplay<'_, Green, Self>

Change the foreground color to green
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fn on_green(&self) -> BgColorDisplay<'_, Green, Self>

Change the background color to green
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fn yellow(&self) -> FgColorDisplay<'_, Yellow, Self>

Change the foreground color to yellow
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fn on_yellow(&self) -> BgColorDisplay<'_, Yellow, Self>

Change the background color to yellow
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fn blue(&self) -> FgColorDisplay<'_, Blue, Self>

Change the foreground color to blue
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fn on_blue(&self) -> BgColorDisplay<'_, Blue, Self>

Change the background color to blue
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fn magenta(&self) -> FgColorDisplay<'_, Magenta, Self>

Change the foreground color to magenta
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fn on_magenta(&self) -> BgColorDisplay<'_, Magenta, Self>

Change the background color to magenta
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fn purple(&self) -> FgColorDisplay<'_, Magenta, Self>

Change the foreground color to purple
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fn on_purple(&self) -> BgColorDisplay<'_, Magenta, Self>

Change the background color to purple
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fn cyan(&self) -> FgColorDisplay<'_, Cyan, Self>

Change the foreground color to cyan
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fn on_cyan(&self) -> BgColorDisplay<'_, Cyan, Self>

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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fn on_white(&self) -> BgColorDisplay<'_, White, Self>

Change the background color to white
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fn default_color(&self) -> FgColorDisplay<'_, Default, Self>

Change the foreground color to the terminal default
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fn on_default_color(&self) -> BgColorDisplay<'_, Default, Self>

Change the background color to the terminal default
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fn bright_black(&self) -> FgColorDisplay<'_, BrightBlack, Self>

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

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

Borrows self, then passes self.borrow() into the pipe function. Read more
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fn pipe_borrow_mut<'a, B, R>( &'a mut self, func: impl FnOnce(&'a mut B) -> R, ) -> R
where Self: BorrowMut<B>, B: 'a + ?Sized, R: 'a,

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> 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