diff options
| -rw-r--r-- | compiler/rename/RnExpr.hs | 10 | ||||
| -rw-r--r-- | testsuite/tests/rename/should_fail/T12879.hs | 4 | ||||
| -rw-r--r-- | testsuite/tests/rename/should_fail/T12879.stderr | 4 | ||||
| -rw-r--r-- | testsuite/tests/rename/should_fail/all.T | 1 |
4 files changed, 17 insertions, 2 deletions
diff --git a/compiler/rename/RnExpr.hs b/compiler/rename/RnExpr.hs index 811ecbafbe..17c9042f22 100644 --- a/compiler/rename/RnExpr.hs +++ b/compiler/rename/RnExpr.hs @@ -336,8 +336,14 @@ We return a (bogus) EWildPat in each case. -} rnExpr EWildPat = return (hsHoleExpr, emptyFVs) -- "_" is just a hole -rnExpr e@(EAsPat {}) = - patSynErr e (text "Did you mean to enable TypeApplications?") +rnExpr e@(EAsPat {}) + = do { opt_TypeApplications <- xoptM LangExt.TypeApplications + ; let msg | opt_TypeApplications + = "Type application syntax requires a space before '@'" + | otherwise + = "Did you mean to enable TypeApplications?" + ; patSynErr e (text msg) + } rnExpr e@(EViewPat {}) = patSynErr e empty rnExpr e@(ELazyPat {}) = patSynErr e empty diff --git a/testsuite/tests/rename/should_fail/T12879.hs b/testsuite/tests/rename/should_fail/T12879.hs new file mode 100644 index 0000000000..3f62207f15 --- /dev/null +++ b/testsuite/tests/rename/should_fail/T12879.hs @@ -0,0 +1,4 @@ +{-# LANGUAGE TypeApplications #-} +module ShouldFail where + +f x = x@x diff --git a/testsuite/tests/rename/should_fail/T12879.stderr b/testsuite/tests/rename/should_fail/T12879.stderr new file mode 100644 index 0000000000..1b3559c255 --- /dev/null +++ b/testsuite/tests/rename/should_fail/T12879.stderr @@ -0,0 +1,4 @@ + +T12879.hs:4:7: error: + Pattern syntax in expression context: x@x + Type application syntax requires a space before '@' diff --git a/testsuite/tests/rename/should_fail/all.T b/testsuite/tests/rename/should_fail/all.T index b8c1ac51e5..d42ca5675f 100644 --- a/testsuite/tests/rename/should_fail/all.T +++ b/testsuite/tests/rename/should_fail/all.T @@ -142,3 +142,4 @@ test('T11663', normal, compile_fail, ['']) test('T12229', normal, compile, ['']) test('T12681', normal, multimod_compile_fail, ['T12681','-v0']) test('T12686', normal, compile_fail, ['']) +test('T12879', normal, compile_fail, ['']) |