zcash_client_backend::data_api

Struct AccountBirthday

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pub struct AccountBirthday { /* private fields */ }
Expand description

A data structure used to set the birthday height for an account, and ensure that the initial note commitment tree state is recorded at that height.

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impl AccountBirthday

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pub fn from_parts( prior_chain_state: ChainState, recover_until: Option<BlockHeight>, ) -> Self

Available on crate feature test-dependencies only.

Constructs a new AccountBirthday from its constituent parts.

  • prior_chain_state: The chain state prior to the birthday height of the account. The birthday height is defined as the height of the first block to be scanned in wallet recovery.
  • recover_until: An optional height at which the wallet should exit “recovery mode”. In order to avoid confusing shifts in wallet balance and spendability that may temporarily be visible to a user during the process of recovering from seed, wallets may optionally set a “recover until” height. The wallet is considered to be in “recovery mode” until there exist no unscanned ranges between the wallet’s birthday height and the provided recover_until height, exclusive.

This API is intended primarily to be used in testing contexts; under normal circumstances, AccountBirthday::from_treestate should be used instead.

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pub fn from_treestate( treestate: TreeState, recover_until: Option<BlockHeight>, ) -> Result<Self, BirthdayError>

Constructs a new AccountBirthday from a TreeState returned from lightwalletd.

  • treestate: The tree state corresponding to the last block prior to the wallet’s birthday height.
  • recover_until: An optional height at which the wallet should exit “recovery mode”. In order to avoid confusing shifts in wallet balance and spendability that may temporarily be visible to a user during the process of recovering from seed, wallets may optionally set a “recover until” height. The wallet is considered to be in “recovery mode” until there exist no unscanned ranges between the wallet’s birthday height and the provided recover_until height, exclusive.
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pub fn sapling_frontier( &self, ) -> &Frontier<Node, { sapling::NOTE_COMMITMENT_TREE_DEPTH }>

Returns the Sapling note commitment tree frontier as of the end of the block at Self::height.

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pub fn orchard_frontier(&self) -> &Frontier<MerkleHashOrchard, { _ }>

Available on crate feature orchard only.

Returns the Orchard note commitment tree frontier as of the end of the block at Self::height.

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pub fn height(&self) -> BlockHeight

Returns the birthday height of the account.

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pub fn recover_until(&self) -> Option<BlockHeight>

Returns the height at which the wallet should exit “recovery mode”.

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pub fn from_activation<P: Parameters>( params: &P, network_upgrade: NetworkUpgrade, prior_block_hash: BlockHash, ) -> AccountBirthday

Available on crate feature test-dependencies only.

Constructs a new AccountBirthday at the given network upgrade’s activation, with no “recover until” height.

§Panics

Panics if the activation height for the given network upgrade is not set.

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pub fn from_sapling_activation<P: Parameters>( params: &P, prior_block_hash: BlockHash, ) -> AccountBirthday

Available on crate feature test-dependencies only.

Constructs a new AccountBirthday at Sapling activation, with no “recover until” height.

§Panics

Panics if the Sapling activation height is not set.

Trait Implementations§

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impl Clone for AccountBirthday

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fn clone(&self) -> AccountBirthday

Returns a copy of the value. Read more
1.0.0 · Source§

fn clone_from(&mut self, source: &Self)

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

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

Formats the value using the given formatter. Read more

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