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| author | Simon Peyton Jones <simonpj@microsoft.com> | 2020-02-07 15:26:44 +0000 |
|---|---|---|
| committer | Marge Bot <ben+marge-bot@smart-cactus.org> | 2020-02-28 22:03:23 -0500 |
| commit | 66f5d6d634698ce054a9b9ce0c53ce9682f6f042 (patch) | |
| tree | 24225b89347cb0f32cff1f3921d71305f5fbdaab /testsuite/tests/typecheck/should_compile/T17792.hs | |
| parent | f97d1fb614ff7638d13eb7c552d2a72fce4c613a (diff) | |
| download | haskell-66f5d6d634698ce054a9b9ce0c53ce9682f6f042.tar.gz | |
Improve error handling for VTA + deferred type errors
This fixes #17792
See Note [VTA for out-of-scope functions] in TcExpr
Diffstat (limited to 'testsuite/tests/typecheck/should_compile/T17792.hs')
| -rw-r--r-- | testsuite/tests/typecheck/should_compile/T17792.hs | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/testsuite/tests/typecheck/should_compile/T17792.hs b/testsuite/tests/typecheck/should_compile/T17792.hs new file mode 100644 index 0000000000..3b18f566c4 --- /dev/null +++ b/testsuite/tests/typecheck/should_compile/T17792.hs @@ -0,0 +1,10 @@ +{-# LANGUAGE TypeApplications #-} +{-# OPTIONS_GHC -fdefer-type-errors #-} + +module T17792 where + +class C a where + m :: a + +instance C Bool where + m = notInScope @Word |