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-rw-r--r--compiler/GHC/Tc/TyCl/Instance.hs11
-rw-r--r--testsuite/tests/ghci/scripts/T16575.stdout3
-rw-r--r--testsuite/tests/hiefile/should_run/T20341.hs104
-rw-r--r--testsuite/tests/hiefile/should_run/T20341.stdout34
-rw-r--r--testsuite/tests/hiefile/should_run/all.T1
-rw-r--r--testsuite/tests/profiling/should_run/ioprof.prof.sample81
6 files changed, 190 insertions, 44 deletions
diff --git a/compiler/GHC/Tc/TyCl/Instance.hs b/compiler/GHC/Tc/TyCl/Instance.hs
index c99beb861e..3067861431 100644
--- a/compiler/GHC/Tc/TyCl/Instance.hs
+++ b/compiler/GHC/Tc/TyCl/Instance.hs
@@ -1758,7 +1758,7 @@ tcMethods dfun_id clas tyvars dfun_ev_vars inst_tys
-> TcM (TcId, LHsBind GhcTc, Maybe Implication)
tc_default sel_id (Just (dm_name, _))
- = do { (meth_bind, inline_prags) <- mkDefMethBind dfun_id clas sel_id dm_name
+ = do { (meth_bind, inline_prags) <- mkDefMethBind inst_loc dfun_id clas sel_id dm_name
; tcMethodBody clas tyvars dfun_ev_vars inst_tys
dfun_ev_binds is_derived hs_sig_fn
spec_inst_prags inline_prags
@@ -2105,7 +2105,7 @@ mk_meth_spec_prags meth_id spec_inst_prags spec_prags_for_me
| L inst_loc (SpecPrag _ wrap inl) <- spec_inst_prags]
-mkDefMethBind :: DFunId -> Class -> Id -> Name
+mkDefMethBind :: SrcSpan -> DFunId -> Class -> Id -> Name
-> TcM (LHsBind GhcRn, [LSig GhcRn])
-- The is a default method (vanailla or generic) defined in the class
-- So make a binding op = $dmop @t1 @t2
@@ -2113,7 +2113,7 @@ mkDefMethBind :: DFunId -> Class -> Id -> Name
-- and t1,t2 are the instance types.
-- See Note [Default methods in instances] for why we use
-- visible type application here
-mkDefMethBind dfun_id clas sel_id dm_name
+mkDefMethBind loc dfun_id clas sel_id dm_name
= do { logger <- getLogger
; dm_id <- tcLookupId dm_name
; let inline_prag = idInlinePragma dm_id
@@ -2128,8 +2128,9 @@ mkDefMethBind dfun_id clas sel_id dm_name
visible_inst_tys = [ ty | (tcb, ty) <- tyConBinders (classTyCon clas) `zip` inst_tys
, tyConBinderArgFlag tcb /= Inferred ]
rhs = foldl' mk_vta (nlHsVar dm_name) visible_inst_tys
- bind = noLocA $ mkTopFunBind Generated fn $
- [mkSimpleMatch (mkPrefixFunRhs fn) [] rhs]
+ bind = L (noAnnSrcSpan loc)
+ $ mkTopFunBind Generated fn
+ [mkSimpleMatch (mkPrefixFunRhs fn) [] rhs]
; liftIO (putDumpFileMaybe logger Opt_D_dump_deriv "Filling in method body"
FormatHaskell
diff --git a/testsuite/tests/ghci/scripts/T16575.stdout b/testsuite/tests/ghci/scripts/T16575.stdout
index 833fb02d80..b907a52653 100644
--- a/testsuite/tests/ghci/scripts/T16575.stdout
+++ b/testsuite/tests/ghci/scripts/T16575.stdout
@@ -1,6 +1,9 @@
Collecting type info for 1 module(s) ...
T16575.hs:(4,15)-(4,18): GHC.Types.Int -> Ghost.X -> GHC.Show.ShowS
+T16575.hs:(4,15)-(4,18): Ghost.X -> GHC.Base.String
+T16575.hs:(4,15)-(4,18): [Ghost.X] -> GHC.Show.ShowS
T16575.hs:(7,7)-(7,8): Ghost.X -> Ghost.X -> GHC.Types.Bool
+T16575.hs:(6,10)-(6,13): Ghost.X -> Ghost.X -> GHC.Types.Bool
T16575.hs:(4,15)-(4,18): GHC.Show.Show Ghost.X
T16575.hs:(4,15)-(4,18): ([Ghost.X] -> GHC.Show.ShowS) -> GHC.Show.Show Ghost.X
T16575.hs:(4,15)-(4,18): (Ghost.X -> GHC.Base.String) -> ([Ghost.X] -> GHC.Show.ShowS) -> GHC.Show.Show Ghost.X
diff --git a/testsuite/tests/hiefile/should_run/T20341.hs b/testsuite/tests/hiefile/should_run/T20341.hs
new file mode 100644
index 0000000000..22b0c1a564
--- /dev/null
+++ b/testsuite/tests/hiefile/should_run/T20341.hs
@@ -0,0 +1,104 @@
+{-# language DeriveAnyClass #-}
+{-# language DefaultSignatures #-}
+{-# language DeriveGeneric #-}
+
+module Main where
+
+import System.Environment
+import Data.Tree
+import GHC.Types.Name.Cache
+import GHC.Types.SrcLoc
+import GHC.Types.Unique.Supply
+import GHC.Types.Name
+import GHC.Utils.Outputable ( Outputable, renderWithContext, ppr, defaultUserStyle, text)
+import GHC.Iface.Ext.Binary
+import GHC.Iface.Ext.Types
+import GHC.Iface.Ext.Utils
+
+import GHC.Driver.Session
+import GHC.SysTools
+
+import qualified Data.Map as M
+import Data.Foldable
+
+import GHC.Generics
+
+class ToJSON a where
+ foo :: a -> String
+ default foo :: Show a => a -> String
+ foo x = show x
+
+data T = MkT { fieldName :: Bool }
+ deriving (Show, ToJSON)
+
+
+g :: String
+g = foo (MkT True)
+-- ^ this is point
+
+h :: String
+h = show (MkT True)
+-- ^ this is point'
+
+point :: (Int, Int)
+point = (36,6)
+
+point' :: (Int, Int)
+point' = (40,6)
+
+makeNc :: IO NameCache
+makeNc = initNameCache 'z' []
+
+dynFlagsForPrinting :: String -> IO DynFlags
+dynFlagsForPrinting libdir = do
+ systemSettings <- initSysTools libdir
+ return $ defaultDynFlags systemSettings (LlvmConfig [] [])
+
+selectPoint' :: HieFile -> (Int,Int) -> HieAST Int
+selectPoint' hf loc =
+ maybe (error "point not found") id $ selectPoint hf loc
+
+main = do
+ libdir:_ <- getArgs
+ df <- dynFlagsForPrinting libdir
+ nc <- makeNc
+ hfr <- readHieFile nc "T20341.hie"
+ let hf = hie_file_result hfr
+ asts = getAsts $ hie_asts hf
+ [ast] = M.elems asts
+ refmap = generateReferencesMap $ asts
+ expandType = text . renderHieType df .
+ flip recoverFullType (hie_types hf)
+ pretty = unlines . (++["└"]) . ("┌":) . map ("│ "++) . lines
+ pprint = pretty . render
+ render :: forall a. Outputable a => a -> String
+ render = renderWithContext (initSDocContext df sty) . ppr
+ sty = defaultUserStyle
+ putStr $ "At " ++ show point ++ ", got evidence: "
+ let trees = getEvidenceTreesAtPoint hf refmap point
+ ptrees = fmap (pprint . fmap expandType) <$> trees
+ -- Print the evidence tree at point - it should include $fToJSONT
+ putStr $ drawForest ptrees
+
+ -- Get the definition location of $fToJSONT
+ let loc = evidenceSpan $ head $ last $ levels $ head trees
+ print loc
+
+ -- Find the ast of the definition of $fToJSONT
+ let Just fToJSONTAst= selectLargestContainedBy loc ast
+
+ -- Print the evidence tree at point' - it should include $fShowT
+ let trees' = getEvidenceTreesAtPoint hf refmap point'
+ ptrees' = fmap (pprint . fmap expandType) <$> trees'
+ -- Print the evidence tree at point' - it should include $ShowT
+ putStr $ drawForest ptrees'
+
+ -- Get the name of $dShow = $fShowT
+ let dShowT = evidenceVar $ rootLabel $ head trees'
+
+ -- Finally ensure that the definition of $fToJSONT contains a reference to $dShowT
+ let isMember = M.member (Right dShowT) $ sourcedNodeIdents $ sourcedNodeInfo fToJSONTAst
+ if isMember
+ then putStrLn "$dShow was found in the definition of $fToJSONT"
+ else putStrLn "ERROR: $dShow was NOT found in the definition of $fToJSONT"
+
diff --git a/testsuite/tests/hiefile/should_run/T20341.stdout b/testsuite/tests/hiefile/should_run/T20341.stdout
new file mode 100644
index 0000000000..45b31bd95e
--- /dev/null
+++ b/testsuite/tests/hiefile/should_run/T20341.stdout
@@ -0,0 +1,34 @@
+At (36,6), got evidence: ┌
+│ $dToJSON at T20341.hs:1:1, of type: ToJSON T
+│ is an evidence variable bound by a let, depending on: [$fToJSONT]
+│ with scope: ModuleScope
+│
+│ Defined at <no location info>
+└
+|
+`- ┌
+ │ $fToJSONT at T20341.hs:32:19-24, of type: ToJSON T
+ │ is an evidence variable bound by an instance of class ToJSON
+ │ with scope: ModuleScope
+ │
+ │ Defined at T20341.hs:32:19
+ └
+
+SrcSpanOneLine "T20341.hs" 32 19 25
+┌
+│ $dShow at T20341.hs:1:1, of type: Show T
+│ is an evidence variable bound by a let, depending on: [$fShowT]
+│ with scope: ModuleScope
+│
+│ Defined at <no location info>
+└
+|
+`- ┌
+ │ $fShowT at T20341.hs:32:13-16, of type: Show T
+ │ is an evidence variable bound by an instance of class Show
+ │ with scope: ModuleScope
+ │
+ │ Defined at T20341.hs:32:13
+ └
+
+$dShow was found in the definition of $fToJSONT
diff --git a/testsuite/tests/hiefile/should_run/all.T b/testsuite/tests/hiefile/should_run/all.T
index 55dc8d1722..f734e3c12e 100644
--- a/testsuite/tests/hiefile/should_run/all.T
+++ b/testsuite/tests/hiefile/should_run/all.T
@@ -1,2 +1,3 @@
test('PatTypes', [extra_run_opts('"' + config.libdir + '"')], compile_and_run, ['-package ghc -fwrite-ide-info'])
test('HieQueries', [extra_run_opts('"' + config.libdir + '"')], compile_and_run, ['-package ghc -fwrite-ide-info'])
+test('T20341', [extra_run_opts('"' + config.libdir + '"')], compile_and_run, ['-package ghc -fwrite-ide-info'])
diff --git a/testsuite/tests/profiling/should_run/ioprof.prof.sample b/testsuite/tests/profiling/should_run/ioprof.prof.sample
index 103207d8ca..f33134f243 100644
--- a/testsuite/tests/profiling/should_run/ioprof.prof.sample
+++ b/testsuite/tests/profiling/should_run/ioprof.prof.sample
@@ -1,54 +1,57 @@
- Mon May 23 13:50 2022 Time and Allocation Profiling Report (Final)
+ Wed Jul 6 01:06 2022 Time and Allocation Profiling Report (Final)
ioprof +RTS -hc -p -RTS
total time = 0.00 secs (0 ticks @ 1000 us, 1 processor)
- total alloc = 129,248 bytes (excludes profiling overheads)
+ total alloc = 130,792 bytes (excludes profiling overheads)
COST CENTRE MODULE SRC %time %alloc
-CAF Main <entire-module> 0.0 1.1
-main Main ioprof.hs:28:1-43 0.0 6.8
-errorM.\ Main ioprof.hs:23:22-28 0.0 56.8
-CAF GHC.IO.Handle.FD <entire-module> 0.0 26.9
+CAF GHC.IO.Handle.FD <entire-module> 0.0 26.6
CAF GHC.IO.Exception <entire-module> 0.0 1.0
CAF GHC.IO.Encoding <entire-module> 0.0 2.3
CAF GHC.Exception <entire-module> 0.0 3.0
+CAF Main <entire-module> 0.0 1.1
+main Main ioprof.hs:28:1-43 0.0 6.7
+errorM.\ Main ioprof.hs:23:22-28 0.0 57.3
individual inherited
COST CENTRE MODULE SRC no. entries %time %alloc %time %alloc
-MAIN MAIN <built-in> 129 0 0.0 0.5 0.0 100.0
- CAF GHC.Conc.Signal <entire-module> 233 0 0.0 0.5 0.0 0.5
- CAF GHC.Conc.Sync <entire-module> 232 0 0.0 0.5 0.0 0.5
- CAF GHC.Exception <entire-module> 215 0 0.0 3.0 0.0 3.0
- CAF GHC.IO.Encoding <entire-module> 199 0 0.0 2.3 0.0 2.3
- CAF GHC.IO.Encoding.Iconv <entire-module> 197 0 0.0 0.2 0.0 0.2
- CAF GHC.IO.Exception <entire-module> 191 0 0.0 1.0 0.0 1.0
- CAF GHC.IO.Handle.FD <entire-module> 188 0 0.0 26.9 0.0 26.9
- CAF GHC.Stack.CCS <entire-module> 167 0 0.0 0.2 0.0 0.2
- CAF GHC.Weak.Finalize <entire-module> 158 0 0.0 0.0 0.0 0.0
- CAF Main <entire-module> 136 0 0.0 1.1 0.0 1.1
- <*> Main ioprof.hs:20:5-14 261 1 0.0 0.0 0.0 0.0
- fmap Main ioprof.hs:16:5-16 269 1 0.0 0.0 0.0 0.0
- main Main ioprof.hs:28:1-43 258 1 0.0 0.0 0.0 0.0
- main Main ioprof.hs:28:1-43 259 0 0.0 6.8 0.0 63.7
- bar Main ioprof.hs:31:1-20 260 1 0.0 0.1 0.0 0.2
- foo Main ioprof.hs:34:1-16 275 1 0.0 0.0 0.0 0.0
- errorM Main ioprof.hs:23:1-28 276 1 0.0 0.0 0.0 0.0
- <*> Main ioprof.hs:20:5-14 262 0 0.0 0.0 0.0 0.0
- >>= Main ioprof.hs:(11,3)-(12,50) 263 1 0.0 0.0 0.0 0.0
- fmap Main ioprof.hs:16:5-16 270 0 0.0 0.0 0.0 0.0
- >>= Main ioprof.hs:(11,3)-(12,50) 271 1 0.0 0.0 0.0 0.0
- runM Main ioprof.hs:26:1-37 264 1 0.0 0.0 0.0 56.8
- bar Main ioprof.hs:31:1-20 265 0 0.0 0.0 0.0 56.8
- <*> Main ioprof.hs:20:5-14 266 0 0.0 0.0 0.0 0.0
- >>= Main ioprof.hs:(11,3)-(12,50) 267 0 0.0 0.0 0.0 0.0
- >>=.\ Main ioprof.hs:(11,27)-(12,50) 268 1 0.0 0.0 0.0 0.0
- fmap Main ioprof.hs:16:5-16 272 0 0.0 0.0 0.0 0.0
- >>= Main ioprof.hs:(11,3)-(12,50) 273 0 0.0 0.0 0.0 0.0
- >>=.\ Main ioprof.hs:(11,27)-(12,50) 274 1 0.0 0.0 0.0 0.0
- foo Main ioprof.hs:34:1-16 277 0 0.0 0.0 0.0 56.8
- errorM Main ioprof.hs:23:1-28 278 0 0.0 0.0 0.0 56.8
- errorM.\ Main ioprof.hs:23:22-28 279 1 0.0 56.8 0.0 56.8
+MAIN MAIN <built-in> 131 0 0.0 0.5 0.0 100.0
+ CAF Main <entire-module> 261 0 0.0 1.1 0.0 1.1
+ <*> Main ioprof.hs:20:5-14 267 1 0.0 0.0 0.0 0.0
+ fmap Main ioprof.hs:16:5-16 276 1 0.0 0.0 0.0 0.0
+ liftA2 Main ioprof.hs:18:10-26 265 1 0.0 0.0 0.0 0.0
+ main Main ioprof.hs:28:1-43 262 1 0.0 0.0 0.0 0.0
+ CAF GHC.Conc.Signal <entire-module> 256 0 0.0 0.5 0.0 0.5
+ CAF GHC.Conc.Sync <entire-module> 254 0 0.0 0.5 0.0 0.5
+ CAF GHC.Exception <entire-module> 252 0 0.0 3.0 0.0 3.0
+ CAF GHC.IO.Encoding <entire-module> 243 0 0.0 2.3 0.0 2.3
+ CAF GHC.IO.Encoding.Iconv <entire-module> 240 0 0.0 0.2 0.0 0.2
+ CAF GHC.IO.Exception <entire-module> 225 0 0.0 1.0 0.0 1.0
+ CAF GHC.IO.Handle.FD <entire-module> 219 0 0.0 26.6 0.0 26.6
+ CAF GHC.Stack.CCS <entire-module> 195 0 0.0 0.2 0.0 0.2
+ CAF GHC.Weak.Finalize <entire-module> 184 0 0.0 0.0 0.0 0.0
+ main Main ioprof.hs:28:1-43 263 0 0.0 6.7 0.0 64.2
+ bar Main ioprof.hs:31:1-20 264 1 0.0 0.1 0.0 0.2
+ foo Main ioprof.hs:34:1-16 282 1 0.0 0.0 0.0 0.0
+ errorM Main ioprof.hs:23:1-28 283 1 0.0 0.0 0.0 0.0
+ liftA2 Main ioprof.hs:18:10-26 266 0 0.0 0.1 0.0 0.1
+ <*> Main ioprof.hs:20:5-14 268 0 0.0 0.0 0.0 0.0
+ >>= Main ioprof.hs:(11,3)-(12,50) 269 1 0.0 0.0 0.0 0.0
+ fmap Main ioprof.hs:16:5-16 277 0 0.0 0.0 0.0 0.0
+ >>= Main ioprof.hs:(11,3)-(12,50) 278 1 0.0 0.0 0.0 0.0
+ runM Main ioprof.hs:26:1-37 270 1 0.0 0.0 0.0 57.3
+ bar Main ioprof.hs:31:1-20 271 0 0.0 0.0 0.0 57.3
+ foo Main ioprof.hs:34:1-16 284 0 0.0 0.0 0.0 57.3
+ errorM Main ioprof.hs:23:1-28 285 0 0.0 0.0 0.0 57.3
+ errorM.\ Main ioprof.hs:23:22-28 286 1 0.0 57.3 0.0 57.3
+ liftA2 Main ioprof.hs:18:10-26 272 0 0.0 0.0 0.0 0.0
+ <*> Main ioprof.hs:20:5-14 273 0 0.0 0.0 0.0 0.0
+ >>= Main ioprof.hs:(11,3)-(12,50) 274 0 0.0 0.0 0.0 0.0
+ >>=.\ Main ioprof.hs:(11,27)-(12,50) 275 1 0.0 0.0 0.0 0.0
+ fmap Main ioprof.hs:16:5-16 279 0 0.0 0.0 0.0 0.0
+ >>= Main ioprof.hs:(11,3)-(12,50) 280 0 0.0 0.0 0.0 0.0
+ >>=.\ Main ioprof.hs:(11,27)-(12,50) 281 1 0.0 0.0 0.0 0.0