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WalletSummary

zcash_client_backend::data_api

Struct WalletSummary 

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pub struct WalletSummary<AccountId: Eq + Hash> { /* private fields */ }
Expand description

A type representing the potentially-spendable value of unspent outputs in the wallet.

The balances reported using this data structure may overestimate the total spendable value of the wallet, in the case that the spend of a previously received shielded note has not yet been detected by the process of scanning the chain. The balances reported using this data structure can only be certain to be unspent in the case that Self::is_synced is true, and even in this circumstance it is possible that a newly created transaction could conflict with a not-yet-mined transaction in the mempool.

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impl<AccountId: Eq + Hash> WalletSummary<AccountId>

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pub fn new( account_balances: HashMap<AccountId, AccountBalance>, chain_tip_height: BlockHeight, fully_scanned_height: BlockHeight, progress: Progress, next_sapling_subtree_index: u64, next_orchard_subtree_index: u64, next_ironwood_subtree_index: u64, ) -> Self

Constructs a new WalletSummary from its constituent parts.

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pub fn account_balances(&self) -> &HashMap<AccountId, AccountBalance>

Returns the balances of accounts in the wallet, keyed by account ID.

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pub fn chain_tip_height(&self) -> BlockHeight

Returns the height of the current chain tip.

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pub fn fully_scanned_height(&self) -> BlockHeight

Returns the height below which all blocks have been scanned by the wallet, ignoring blocks below the wallet birthday.

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pub fn progress(&self) -> Progress

Returns the progress of scanning the chain to bring the wallet up to date.

This progress metric is intended as an indicator of how close the wallet is to general usability, including the ability to spend existing funds that were previously spendable.

The window over which progress is computed spans from the wallet’s birthday to the current chain tip. It is divided into two segments: a “recovery” segment, between the wallet birthday and the recovery height (currently the height at which recovery from seed was initiated, but how this boundary is computed may change in the future), and a “scan” segment, between the recovery height and the current chain tip.

When converting the ratios returned here to percentages, checked division must be used in order to avoid divide-by-zero errors. A zero denominator in a returned ratio indicates that there are no shielded notes to be scanned in the associated block range.

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pub fn next_sapling_subtree_index(&self) -> u64

Returns the Sapling subtree index that should start the next range of subtree roots passed to WalletCommitmentTrees::put_sapling_subtree_roots.

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pub fn next_orchard_subtree_index(&self) -> u64

Available on crate feature orchard only.

Returns the Orchard subtree index that should start the next range of subtree roots passed to WalletCommitmentTrees::put_orchard_subtree_roots.

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pub fn next_ironwood_subtree_index(&self) -> u64

Available on crate feature orchard only.

Returns the Ironwood subtree index that should start the next range of subtree roots passed to WalletCommitmentTrees::put_ironwood_subtree_roots.

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pub fn is_synced(&self) -> bool

Returns whether or not wallet scanning is complete.

Trait Implementations§

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impl<AccountId: Clone + Eq + Hash> Clone for WalletSummary<AccountId>

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fn clone(&self) -> Self

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl<AccountId: Debug + Eq + Hash> Debug for WalletSummary<AccountId>

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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<AccountId: Eq + Eq + Hash> Eq for WalletSummary<AccountId>

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impl<AccountId: PartialEq + Eq + Hash> PartialEq for WalletSummary<AccountId>

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

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

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

Inequality operator !=. Read more
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impl<AccountId: PartialEq + Eq + Hash> StructuralPartialEq for WalletSummary<AccountId>

Auto Trait Implementations§

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impl<AccountId> Freeze for WalletSummary<AccountId>
where HashMap<AccountId, AccountBalance>: Freeze,

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impl<AccountId> RefUnwindSafe for WalletSummary<AccountId>
where HashMap<AccountId, AccountBalance>: RefUnwindSafe,

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impl<AccountId> Send for WalletSummary<AccountId>
where HashMap<AccountId, AccountBalance>: Send,

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impl<AccountId> Sync for WalletSummary<AccountId>
where HashMap<AccountId, AccountBalance>: Sync,

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impl<AccountId> Unpin for WalletSummary<AccountId>
where HashMap<AccountId, AccountBalance>: Unpin,

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impl<AccountId> UnsafeUnpin for WalletSummary<AccountId>
where HashMap<AccountId, AccountBalance>: UnsafeUnpin,

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impl<AccountId> UnwindSafe for WalletSummary<AccountId>
where HashMap<AccountId, AccountBalance>: UnwindSafe,

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