diff options
Diffstat (limited to 'testsuite')
-rw-r--r-- | testsuite/tests/th/T21547.hs | 11 | ||||
-rw-r--r-- | testsuite/tests/th/T21547.stderr | 9 | ||||
-rw-r--r-- | testsuite/tests/th/T21547A.hs | 9 | ||||
-rw-r--r-- | testsuite/tests/th/all.T | 1 |
4 files changed, 30 insertions, 0 deletions
diff --git a/testsuite/tests/th/T21547.hs b/testsuite/tests/th/T21547.hs new file mode 100644 index 0000000000..99b9992c59 --- /dev/null +++ b/testsuite/tests/th/T21547.hs @@ -0,0 +1,11 @@ +{-# LANGUAGE TemplateHaskell #-} +module T21547 where +import T21547A + +data T a = T a deriving (Show) + +main :: IO () +main = do + let x = $$(foo [|| T () ||]) + let y = $$(foo [|| F () ||]) + return () diff --git a/testsuite/tests/th/T21547.stderr b/testsuite/tests/th/T21547.stderr new file mode 100644 index 0000000000..a37b98aa85 --- /dev/null +++ b/testsuite/tests/th/T21547.stderr @@ -0,0 +1,9 @@ + +T21547.hs:9:14: error: + • GHC stage restriction: + instance for ‘base-4.16.0.0:Data.Typeable.Internal.Typeable + T’ is used in a top-level splice, quasi-quote, or annotation, + and must be imported, not defined locally + • In the expression: foo [|| T () ||] + In the Template Haskell splice $$(foo [|| T () ||]) + In the expression: $$(foo [|| T () ||]) diff --git a/testsuite/tests/th/T21547A.hs b/testsuite/tests/th/T21547A.hs new file mode 100644 index 0000000000..19b47f8987 --- /dev/null +++ b/testsuite/tests/th/T21547A.hs @@ -0,0 +1,9 @@ +module T21547A where + +import Data.Typeable +import Language.Haskell.TH + +foo :: Typeable a => Code Q a -> Code Q () +foo = undefined + +data F a = F a deriving (Show) diff --git a/testsuite/tests/th/all.T b/testsuite/tests/th/all.T index ec79e19249..7147fa4182 100644 --- a/testsuite/tests/th/all.T +++ b/testsuite/tests/th/all.T @@ -543,6 +543,7 @@ test('T17820c', normal, compile_fail, ['']) test('T17820d', normal, compile_fail, ['']) test('T17820e', normal, compile_fail, ['']) test('T20454', normal, compile_and_run, ['']) +test('T21547', [extra_files(['T21547A.hs'])], multimod_compile_fail, ['T21547', '-v0']) test('T20590', normal, compile, ['-v0 -ddump-splices -dsuppress-uniques']) test('T20773', only_ways(['ghci']), ghci_script, ['T20773.script']) test('T20884', normal, compile_fail, ['']) |