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Changelog

Source: NEWS.md

s7contract 0.1.0.9000

  • Added references to the S7 traits discussion in RConsortium/S7#34.

s7contract 0.1.0

  • Renamed the primary new_interface() requirement argument to generics; methods remains a compatibility alias.
  • Tightened interface and trait requirements to require S7 generics created with S7::new_generic().
  • Added optional progressive argument and return checks for interface requirements and trait methods, including with() and %::% evaluation syntax.
  • Reworked contract descriptor objects as internal S7 classes throughout.
  • Added a Haskell-style Maybe/monad dictionary example to the interface and trait vignette.
  • Added CRAN-facing vignettes with number-like, vector-like, and bioinformatics container examples.
  • Added CRAN submission comments and metadata updates for vignette building.
  • Fixed impl_trait() so failed S7 method registration no longer leaves a stale trait implementation record.
  • Preserved explicit NULL associated item values and allowed subtraits to retrieve inherited associated items.
  • Added regression tests for trait registration failure and associated metadata edge cases.
  • Simplified the README to keep the Go/Rust analogies clearly scoped to runtime S7 helpers.