Remove StructuredDiagnostic

ghcide/src/Development/IDE/Types/Diagnostics.hs

@@ -10,7 +10,6 @@ module Development.IDE.Types.Diagnostics (
   ShowDiagnostic(..),
   FileDiagnostic(..),
   fdLspDiagnosticL,
-  StructuredMessage(..),
   IdeResult,
   LSP.DiagnosticSeverity(..),
   DiagnosticStore,
@@ -87,10 +86,6 @@ ideErrorFromLspDiag
   -> FileDiagnostic
 ideErrorFromLspDiag lspDiag fdFilePath mbOrigMsg =
   let fdShouldShowDiagnostic = ShowDiag
-      fdStructuredMessage =
-        case mbOrigMsg of
-          Nothing  -> NoStructuredMessage
-          Just msg -> SomeStructuredMessage msg
       fdLspDiagnostic =
         lspDiag
           & attachReason (fmap (diagnosticReason . errMsgDiagnostic) mbOrigMsg)
@@ -172,52 +167,16 @@ data ShowDiagnostic
 instance NFData ShowDiagnostic where
     rnf = rwhnf
 
--- | A Maybe-like wrapper for a GhcMessage that doesn't try to compare, show, or
--- force the GhcMessage inside, so that we can derive Show, Eq, Ord, NFData on
--- FileDiagnostic. FileDiagnostic only uses this as metadata so we can safely
--- ignore it in fields.
-data StructuredMessage
-  = NoStructuredMessage
-  | SomeStructuredMessage (MsgEnvelope GhcMessage)
-  deriving (Generic)
-
-instance Show StructuredMessage where
-  show NoStructuredMessage      = "NoStructuredMessage"
-  show SomeStructuredMessage {} = "SomeStructuredMessage"
-
-instance Eq StructuredMessage where
-  (==) NoStructuredMessage NoStructuredMessage           = True
-  (==) SomeStructuredMessage {} SomeStructuredMessage {} = True
-  (==) _ _                                               = False
-
-instance Ord StructuredMessage where
-  compare NoStructuredMessage NoStructuredMessage           = EQ
-  compare SomeStructuredMessage {} SomeStructuredMessage {} = EQ
-  compare NoStructuredMessage SomeStructuredMessage {}      = GT
-  compare SomeStructuredMessage {} NoStructuredMessage      = LT
-
-instance NFData StructuredMessage where
-  rnf NoStructuredMessage      = ()
-  rnf SomeStructuredMessage {} = ()
-
 -- | Human readable diagnostics for a specific file.
 --
 --   This type packages a pretty printed, human readable error message
 --   along with the related source location so that we can display the error
 --   on either the console or in the IDE at the right source location.
 --
---   It also optionally keeps a structured diagnostic message GhcMessage in
---   StructuredMessage.
---
 data FileDiagnostic = FileDiagnostic
   { fdFilePath             :: NormalizedFilePath
   , fdShouldShowDiagnostic :: ShowDiagnostic
   , fdLspDiagnostic        :: Diagnostic
-    -- | The optional GhcMessage inside of this StructuredMessage is ignored for
-    -- Eq, Ord, Show, and NFData instances. This is fine because this field
-    -- should only ever be metadata and should never be used to distinguish
-    -- between FileDiagnostics.
-  , fdStructuredMessage    :: StructuredMessage
   }
   deriving (Eq, Ord, Show, Generic)
 

ghcide/test/exe/UnitTests.hs

@@ -64,7 +64,7 @@ tests = do
                , _message = ""
                , _relatedInformation = Nothing
                , _tags = Nothing
-               } Diagnostics.NoStructuredMessage
+               }
          let shown = T.unpack (Diagnostics.showDiagnostics [diag])
          let expected = "1:2-3:4"
          assertBool (unwords ["expected to find range", expected, "in diagnostic", shown]) $