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  • Glasgow Haskell Compiler
  • GHCGHC
  • Issues

  • Open 325
  • Closed 1,052
  • All 1,377
New issue
  • Priority Created date Last updated Milestone due date Due date Popularity Label priority Manual Title Weight Blocking
  • Improve error messages for record updates that don't typecheck
    #21655 · created May 26, 2022 by sheaf   9.6.1   Pnormal Ttask diagnostic quality error messages typechecker
    • 1
    updated May 26, 2022
  • runtimeRepPrimRep panic with a representation-polymorphic newtype
    #21650 · created May 25, 2022 by sheaf   Pnormal Tbug UnliftedNewtypes representation polymorphism typechecker
    • 0
    updated May 25, 2022
  • Finally nail Constraint vs Type: the plan
    #21623 · created May 23, 2022 by Simon Peyton Jones   Coercions Pnormal Ttask typechecker
    • 1
    • 19
    updated May 27, 2022
  • Qualified names in type signatures
    #21605 · created May 20, 2022 by Vladislav Zavialov   DependentHaskell Pnormal Tfeature request error messages typechecker
    • 7
    updated May 28, 2022
  • flatten_args wandered into deeper water than usual
    #21583 · created May 16, 2022 by sfultong   Phigh Tbug typechecker
    • 6
    updated May 24, 2022
  • Tidy up withDict and friends
    #21568 · created May 13, 2022 by Simon Peyton Jones   9.4.1   Coercions Pnormal Ttask constraint solver typechecker
    • 2
    updated May 27, 2022
  • Regression in resolving quantified constraint from GHC 8.10.7 to GHC 9.0.2/9.2.2
    #21550 · created May 11, 2022 by Identical Snowflake   9.2.3   Pnormal QuantifiedConstraints Tbug typechecker
    • 2
    updated May 25, 2022
  • Investigate whether we can support simplified and deep subsumption
    #21548 · created May 10, 2022 by Matthew Pickering   9.2.3   Phigh Ttask typechecker
    • 1
    • 7
    updated May 20, 2022
  • GHC 9.4 panic on a representation-polymorphic newtype instance
    #21544 · created May 10, 2022 by sheaf   9.4.1   Phigh Tbug TypeFamilies UnliftedNewtypes compiler crash representation polymorphism typechecker
    • 14
    updated May 27, 2022
  • GHC 9.4 infinite loop in typechecker
    #21530 · created May 08, 2022 by Jaro Reinders   9.4.1   Phigh Tbug backport needed:9.4 compile-time loop typechecker
    • 5
    updated May 10, 2022
  • Constraint solver regression in 9.2
    #21515 · created May 06, 2022 by Andres Löh   9.2.3   Phigh Tbug constraint solver typechecker
    • 1
    • 1
    • 3
    updated May 13, 2022
  • The hint to add missing context to the type signature is not produced by GHC when using non-trivial constraint
    #21502 · created May 04, 2022 by Sergey Vinokurov   Pnormal Ttask error messages typechecker
    • 4
    updated May 06, 2022
  • Confusion around visible type application in pattern synonym pattern
    #21501 · created May 04, 2022 by Richard Eisenberg   9.6.1   PatternSynonyms Tbug TypeApplications Typeable typechecker
    • 1
    updated May 06, 2022
  • Regression in interaction between type families and equality constraints
    #21473 · created May 02, 2022 by KingoftheHomeless   9.2.3   Phigh Tbug backport needed:9.2 backport needed:9.4 program incorrectly rejected typechecker
    • 2
    updated May 17, 2022
  • Confusing GADTSyntax newtype error with invisible kinds
    #21447 · created Apr 28, 2022 by sheaf   9.6.1   GADTs Pnormal Tbug diagnostic quality error messages newcomer typechecker
    • 1
    updated May 03, 2022
  • Should we use CheckTyEqResult for equalities involving concrete metavariables?
    #21430 · created Apr 26, 2022 by sheaf   Plow Ttask defaulting representation polymorphism typechecker
    • 0
    updated Apr 26, 2022
  • checkMissingFields could use wc_errors
    #21413 · created Apr 21, 2022 by sheaf   Plow Ttask error messages records typechecker
    • 1
    updated Apr 21, 2022
  • simple_app fails to beta-reduce through casts
    #21377 · created Apr 11, 2022 by sheaf   LinearTypes Phigh Tbug UnliftedDatatypes UnliftedNewtypes core lint representation polymorphism typechecker
    • 4
    updated Apr 21, 2022
  • RULE quantification over equalities is fragile
    #21366 · created Apr 08, 2022 by sheaf   Pnormal Tbug rules typechecker
    • 2
    updated Apr 12, 2022
  • GHC no longer instantiates representation-polymorphic newtype constructors
    #21346 · created Apr 05, 2022 by sheaf   Pnormal Tbug UnliftedNewtypes representation polymorphism typechecker
    • 1
    • 10
    updated May 27, 2022
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