`txouts` and `txouts_in_tx` are exposed from `SpkTxOutIndex`, but
modified to remove nested unions.
Add `keychain_outpoints_in_range` that iterates over outpoints of a
given keychain derivation range.
Previously `SpkTxOutIndex` methods can be called from
`KeychainTxOutIndex` due to the `DeRef` implementation. However, the
internal `SpkTxOut` will also contain lookahead spks resulting in an
error-prone API.
`SpkTxOutIndex` methods are now not directly callable from
`KeychainTxOutIndex`. Methods of `KeychainTxOutIndex` are renamed for
clarity. I.e. methods that return an unbounded spk iter are prefixed
with `unbounded`.
Simplify the `reveal_to_target` algorithm by exiting prematurely if
the `target_index` is already revealed.
Since the `reveal_to_index` variable was different from
`Some(target_index)` only if the target was already revealed, we can
getrid of the variable altogether.
The wallet is currently created without setting any lookahead value for
the keychain. This implicitly makes it a lookahead of 0. As this is a
high-level interface we should avoid footguns and aim for a reasonable
default.
Instead of simply patching it for wallet, we alter `KeychainTxOutIndex`
to have a default lookahead value. Additionally, instead of a
per-keychain lookahead, the constructor asks for a `lookahead` value.
This avoids the footguns of having methods which allows the caller the
decrease the `lookahead` (and therefore panicing). This also simplifies
the API.
Co-authored-by: Antoine Poisot <darosior@protonmail.com>
Co-authored-by: 志宇 <hello@evanlinjin.me>
e89cf5a16a239d51ae9eb1857b55e7178e588b74 refactor: use set_lookahead in set_lookahead_for_all (Vladimir Fomene)
Pull request description:
### Description
Use set_lookahead in set_lookahead_for_all.
### Checklists
#### All Submissions:
* [x] I've signed all my commits
* [x] I followed the [contribution guidelines](https://github.com/bitcoindevkit/bdk/blob/master/CONTRIBUTING.md)
* [x] I ran `cargo fmt` and `cargo clippy` before committing
ACKs for top commit:
realeinherjar:
ACK: e89cf5a16a239d51ae9eb1857b55e7178e588b74
evanlinjin:
ACK e89cf5a16a239d51ae9eb1857b55e7178e588b74
Tree-SHA512: 02d226be7adcfd5e23ecb9d17539b0e089cb55ddf9c6de980155960f8181f2d3ea3ac9a93b2c1b7e0a8d4e4c821d92f65405852c696c9a367193a42d60c1aac6
Other changes:
* The `async-https` feature of `bdk_esplora` is no longer default.
* Rename `ObservedAs` to `ChainPosition`.
* Set temporary MSRV to 1.60.0 to compile all workspace members will all
features.
Instead of relying on a `OwnedIndexer` trait to filter for relevant
txouts, we move the listing and balance methods from `IndexedTxGraph` to
`TxGraph` and add an additional input (list of relevant outpoints) to
these methods.
This provides a simpler implementation and a more flexible API.
SpkIterator was created with its own nth() and next() implementations
and its own new() and new_with_range() constructors.
Co-authored-by: 志宇 <hello@evanlinjin.me>
Previously, I have misunderstood the definition of anchor. If a tx is
anchored in a block, it does not necessarily mean it is confirmed in
that block. The tx can be confirmed in an ancestor block of the anchor
block.
With this new definition, we need a new trait `ConfirmationHeight` that
has one method `confirmation_height`. This trait can be used to extend
`Anchor` for those implementations that can give us the exact
conirmation height of a tx (which is useful in most cases).
Another change is to add another variant to the `ObservedAs` enum;
`ObservedAs::ConfirmedImplicit(A)`. If a tx does not have an anchor, but
another tx that spends it has an anchor that in in the best chain, we
can assume that tx is also in the best chain. The logic of
`TxGraph::try_get_chain_position` is also changed to reflect this.
Some methods from `IndexedTxGraph` have been moved to `TxGraph` as they
do not require the `Indexer`. Some `TxGraph` methods have been renamed
for clarity and consistency.
Also more docs are added.
The chain oracle keeps track of the best chain, while the transaction
index indexes transaction data in relation to script pubkeys.
This commit also includes initial work on `IndexedTxGraph`.
* Introduce `GraphedTx` struct to access transaction data of graphed
transactions.
* Ability to insert/access anchors and "seen at" values for graphed
transactions.
* `Additions` now records changes to anchors and last_seen_at.
