fix(svm): consistent anchor token constraints #694
Merged
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
We were unnecessarily restricting relayer token account in the fill instruction to be canonically derived from the relayer and mint addresses. By replacing associated_token constraints with token constraints this would allow the relayer to pass any token account as long as its mint and authority matches.
Overall, we want to use canonical token accounts for vault and fill/slow fill recipients (hence, associated_token constraints) and any valid token accounts for all others.
Also, some of mint accounts were incorrectly using token constraints for their program account checks. Event the checks are implemented the same way (account being owned by the token program), Anchor error message is slightly different.
Fixes: https://linear.app/uma/issue/ACX-2925/instructionsfillrs-consistent-token-imports