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Add capability to hash Plutus scripts directly #4037

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merged 2 commits into from
Feb 2, 2024
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@lehins lehins commented Feb 1, 2024

Description

This is going to be a useful function for some of the ongoing work #4030 and #4022

Also extract hashScript out of EraScript class for improved safety

Checklist

  • Commit sequence broadly makes sense and commits have useful messages
  • New tests are added if needed and existing tests are updated
  • When applicable, versions are updated in .cabal and CHANGELOG.md files according to the
    versioning process.
  • The version bounds in .cabal files for all affected packages are updated. If you change the bounds in a cabal file, that package itself must have a version increase. (See RELEASING.md)
  • All visible changes are prepended to the latest section of a CHANGELOG.md for the affected packages. New section is never added with the code changes. (See RELEASING.md)
  • Code is formatted with fourmolu (use scripts/fourmolize.sh)
  • Cabal files are formatted (use scripts/cabal-format.sh)
  • hie.yaml has been updated (use scripts/gen-hie.sh)
  • Self-reviewed the diff

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@Lucsanszky Lucsanszky left a comment

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Thanks for adding this! I rebased my branch on top of this and started using the helpers in #4030. LGTM (after conflicts are resolved).

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@Soupstraw Soupstraw left a comment

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LGTM

This change allows us to reliably compute the hash of a `Plutus` script
outside of an era specific context. Moreover it simplifies future
`EraScript` instance implementation, since all future eras can use
`alonzoScriptPrefixTag` for implementing `scriptPrefixTag`
There will never be a need for overwriting the default implemntation of
`hashScript` in this class, so it only makes to remove the comment about the
dangers of it having a wrong implementation.
@lehins lehins merged commit 51e90fb into master Feb 2, 2024
11 of 27 checks passed
@neilmayhew neilmayhew deleted the lehins/plutus-hash branch March 8, 2024 21:07
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3 participants