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authorRichard Eisenberg <rae@richarde.dev>2019-12-11 15:58:56 +0000
committerMarge Bot <ben+marge-bot@smart-cactus.org>2020-01-12 21:29:27 -0500
commit350e2b78788d47255d27489dfc62d664498b5de4 (patch)
tree50f2f1982c9f120e6b8aac1970579d34333cd16a /testsuite/tests/patsyn
parent9129210f7e9937c1065330295f06524661575839 (diff)
downloadhaskell-350e2b78788d47255d27489dfc62d664498b5de4.tar.gz
Don't zap to Any; error instead
This changes GHC's treatment of so-called Naughty Quantification Candidates to issue errors, instead of zapping to Any. Close #16775. No new test cases, because existing ones cover this well.
Diffstat (limited to 'testsuite/tests/patsyn')
-rw-r--r--testsuite/tests/patsyn/should_compile/all.T1
-rw-r--r--testsuite/tests/patsyn/should_fail/T14552.hs (renamed from testsuite/tests/patsyn/should_compile/T14552.hs)0
-rw-r--r--testsuite/tests/patsyn/should_fail/T14552.stderr8
-rw-r--r--testsuite/tests/patsyn/should_fail/all.T1
4 files changed, 9 insertions, 1 deletions
diff --git a/testsuite/tests/patsyn/should_compile/all.T b/testsuite/tests/patsyn/should_compile/all.T
index 2ac343f635..6ef1928768 100644
--- a/testsuite/tests/patsyn/should_compile/all.T
+++ b/testsuite/tests/patsyn/should_compile/all.T
@@ -75,7 +75,6 @@ test('T14058', [extra_files(['T14058.hs', 'T14058a.hs'])],
multimod_compile, ['T14058', '-v0'])
test('T14326', normal, compile, [''])
test('T14394', normal, ghci_script, ['T14394.script'])
-test('T14552', normal, compile, [''])
test('T14498', normal, compile, [''])
test('T16682', [extra_files(['T16682.hs', 'T16682a.hs'])],
multimod_compile, ['T16682', '-v0 -fwarn-incomplete-patterns -fno-code'])
diff --git a/testsuite/tests/patsyn/should_compile/T14552.hs b/testsuite/tests/patsyn/should_fail/T14552.hs
index a4a7493530..a4a7493530 100644
--- a/testsuite/tests/patsyn/should_compile/T14552.hs
+++ b/testsuite/tests/patsyn/should_fail/T14552.hs
diff --git a/testsuite/tests/patsyn/should_fail/T14552.stderr b/testsuite/tests/patsyn/should_fail/T14552.stderr
new file mode 100644
index 0000000000..b9b6b8448b
--- /dev/null
+++ b/testsuite/tests/patsyn/should_fail/T14552.stderr
@@ -0,0 +1,8 @@
+
+T14552.hs:22:9: error:
+ • Cannot generalise type; skolem ‘k’ would escape its scope
+ if I tried to quantify (aa0 :: k) in this type:
+ forall k (w :: k --> *). Exp a0 (F @k @(*) w aa0)
+ (Indeed, I sometimes struggle even printing this correctly,
+ due to its ill-scoped nature.)
+ • In the declaration for pattern synonym ‘FOO’
diff --git a/testsuite/tests/patsyn/should_fail/all.T b/testsuite/tests/patsyn/should_fail/all.T
index 27ebc8bdd4..02cc2cec2c 100644
--- a/testsuite/tests/patsyn/should_fail/all.T
+++ b/testsuite/tests/patsyn/should_fail/all.T
@@ -46,3 +46,4 @@ test('T15685', normal, compile_fail, [''])
test('T15692', normal, compile, ['']) # It has -fdefer-type-errors inside
test('T15694', normal, compile_fail, [''])
test('T16900', normal, compile_fail, ['-fdiagnostics-show-caret'])
+test('T14552', normal, compile_fail, [''])