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CHANGELOG.md

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Change Log

0.0.9

  • Fix meta unification (#60)
  • Implement copattern type-checking
  • Update minitt-util dependency to fix rustyline compilation error

0.0.8

  • Fix a bug in Subst::concat that breaks delta conversion
  • Improve indentation control in tracing
  • Rework the meta context infrastructure to handle meta variables solved from different de-bruijn indices levels
  • Meta contexts are now stored per-definition
  • Introduce ValData
  • Do some sanity checks after each decl check

0.0.7

  • The implementations of Subst is no longer bound to Term
  • Functions of Subst are now self-based methods
  • Move ConHead to syntax::common
  • Move syntax::core::pat to check::pats::core
  • Implement simplify for simple pattern match
    • Implement check::pats::mat for generating matches
    • Implement unfold_func
  • Group imports into a use tree (merge_imports in rustfmt)
  • Add icon

0.0.6

  • Fix a bunch of index-relevant problems
    • Add local DBI lifting
    • Lift DBI when generate AsBind
    • Lift meta context during unification
    • Lift DBI when substituting inside Closure
  • Add Agda's AddContext Telescope instance (TCS::under)
  • Lhs-splitting now support variables
  • Pretty print Abs
  • Support tracing the type-checking process
  • Put infer, unify and whnf under check::rules::term
  • Inline meta variables after its declaration is checked

0.0.5

  • Migrate from CircleCI + AppVeyor to GitHub Actions
  • Check datatype declaration (#15)
  • Check constructor declaration (#17)
  • Test desugar
  • Check declaration list (#19)
    • Projection & Codata are missing
  • The CLI now check files, there are tests now
  • Don't require : in front of constructor tele
  • Rename ast_cons to ast_util
  • Add Ident info to Term::Whnf
  • Unfold constructor applications (#27)
  • Introduce DeBruijn trait
  • WIP LHS checking (equations, lhs-results, lhs-states, etc.)
    • Pattern splitting is missing
  • Bind now has optional val field

0.0.4

  • Conversion check (#3)
    • Subtyping for universe types
    • Covariance for pi types' return parts
    • Solve metas
  • Ast traversal functions (#5)
  • Local context lookup by uid (#7)
  • Val::App is renamed to Val::Var
  • Fix evaluation for app (#12)
  • Inference now respect implicit parameters (#24)
  • Inference produces well-typed term as well (#23)
  • Application inference now supports projections (#25)
  • Unfold data and codata applications (#27)
  • Parsing (expr parsing and file parsing) (#20, #31)
  • Abs::App is now chained (#33)
  • Desugar surface into abstract, scope check (#36, #42, #43)

0.0.3

  • Add the substitution type
  • Implement the substitution operation
  • Document the design of this language (#2)
  • Initial type-checking code, including:
    • Application inference
    • Core language's definition improvements

0.0.2

  • Add core language definition from Voile, with row-polymorphic terms and sigma type removed (#1)
  • Initial CLI support

0.0.1

  • Create package on crates.io