Add canonicalization modifier: assume not canonical. #1809
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Introduce `CanonicalizationMods` which is passed in to `CanonicalIter::new`. `CanonicalizationMods::assume_canonical` is the only field right now. This contains a list of txids that we assume to be canonical, superceding any other canonicalization rules.
Also change `TxTemplate` API to allow for testing with `assume_canonical`.
This is useful for crafting RBF transactions where you do not want to pick inputs from txs you are replacing or descendants of txs you are replacing.
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As in #1808 it would be nice to have a draft PR that uses this to clean up RBF in wallet to see if we've got everything we need here. |
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Took this out of the |
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I've realized there's a flaw with the Consider a case where transaction Since this feature is intended to support RBF behavior, this logic doesn't actually help us. The correct assume_not_spent: HashSet<OutPoint>, |
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Description
This is useful for creating RBF transactions where you do not want to spend from txs you are replacing or descendants of txs you are replacing.
I noticed that some users think it is useful to implicitly cancel a tx. This can also be used for that. cc. #1799, #1764.
Notes to the reviewers
This PR is based on #1808. Please review and merge that first.
Changelog notice
WIP
Checklists
All Submissions:
cargo fmtandcargo clippybefore committingNew Features: