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| author | Vladislav Zavialov <vlad.z.4096@gmail.com> | 2018-06-14 15:02:36 -0400 |
|---|---|---|
| committer | Richard Eisenberg <rae@cs.brynmawr.edu> | 2018-06-14 15:05:32 -0400 |
| commit | d650729f9a0f3b6aa5e6ef2d5fba337f6f70fa60 (patch) | |
| tree | ac224609397d4b7ca7072fc87739d2522be7675b /testsuite/tests/patsyn/should_fail | |
| parent | 4672e2ebf040feffde4e7e2d79c479e4c0c3efaf (diff) | |
| download | haskell-d650729f9a0f3b6aa5e6ef2d5fba337f6f70fa60.tar.gz | |
Embrace -XTypeInType, add -XStarIsType
Summary:
Implement the "Embrace Type :: Type" GHC proposal,
.../ghc-proposals/blob/master/proposals/0020-no-type-in-type.rst
GHC 8.0 included a major change to GHC's type system: the Type :: Type
axiom. Though casual users were protected from this by hiding its
features behind the -XTypeInType extension, all programs written in GHC
8+ have the axiom behind the scenes. In order to preserve backward
compatibility, various legacy features were left unchanged. For example,
with -XDataKinds but not -XTypeInType, GADTs could not be used in types.
Now these restrictions are lifted and -XTypeInType becomes a redundant
flag that will be eventually deprecated.
* Incorporate the features currently in -XTypeInType into the
-XPolyKinds and -XDataKinds extensions.
* Introduce a new extension -XStarIsType to control how to parse * in
code and whether to print it in error messages.
Test Plan: Validate
Reviewers: goldfire, hvr, bgamari, alanz, simonpj
Reviewed By: goldfire, simonpj
Subscribers: rwbarton, thomie, mpickering, carter
GHC Trac Issues: #15195
Differential Revision: https://phabricator.haskell.org/D4748
Diffstat (limited to 'testsuite/tests/patsyn/should_fail')
| -rw-r--r-- | testsuite/tests/patsyn/should_fail/T14507.hs | 4 | ||||
| -rw-r--r-- | testsuite/tests/patsyn/should_fail/T14507.stderr | 2 | ||||
| -rw-r--r-- | testsuite/tests/patsyn/should_fail/T14552.hs | 2 |
3 files changed, 5 insertions, 3 deletions
diff --git a/testsuite/tests/patsyn/should_fail/T14507.hs b/testsuite/tests/patsyn/should_fail/T14507.hs index 84166d0286..b36425ced6 100644 --- a/testsuite/tests/patsyn/should_fail/T14507.hs +++ b/testsuite/tests/patsyn/should_fail/T14507.hs @@ -1,4 +1,6 @@ -{-# Language PatternSynonyms, ViewPatterns, GADTs, ConstraintKinds, RankNTypes, KindSignatures, PolyKinds, ScopedTypeVariables, DataKinds, TypeInType, TypeOperators, TypeApplications, TypeFamilies, TypeFamilyDependencies #-} +{-# Language PatternSynonyms, ViewPatterns, GADTs, ConstraintKinds, RankNTypes, + PolyKinds, ScopedTypeVariables, DataKinds, TypeOperators, + TypeApplications, TypeFamilies, TypeFamilyDependencies #-} module T14507 where diff --git a/testsuite/tests/patsyn/should_fail/T14507.stderr b/testsuite/tests/patsyn/should_fail/T14507.stderr index cec70dfcdb..1279ec1e4e 100644 --- a/testsuite/tests/patsyn/should_fail/T14507.stderr +++ b/testsuite/tests/patsyn/should_fail/T14507.stderr @@ -1,5 +1,5 @@ -T14507.hs:18:9: error: +T14507.hs:20:9: error: • Iceland Jack! Iceland Jack! Stop torturing me! Pattern-bound variable x :: TypeRep a has a type that mentions pattern-bound coercion: co diff --git a/testsuite/tests/patsyn/should_fail/T14552.hs b/testsuite/tests/patsyn/should_fail/T14552.hs index 77f08575b1..a4a7493530 100644 --- a/testsuite/tests/patsyn/should_fail/T14552.hs +++ b/testsuite/tests/patsyn/should_fail/T14552.hs @@ -1,5 +1,5 @@ {-# Language RankNTypes, ViewPatterns, PatternSynonyms, TypeOperators, ScopedTypeVariables, - KindSignatures, PolyKinds, DataKinds, TypeFamilies, TypeInType, GADTs #-} + KindSignatures, PolyKinds, DataKinds, TypeFamilies, GADTs #-} module T14552 where |