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Fix completion for record dot syntax when record isn't known #4619

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Merged
merged 4 commits into from
Jun 8, 2025
Merged

Fix completion for record dot syntax when record isn't known #4619

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0071f14
Fix completion for record dot syntax when record isn't known
samuel-williams-da Jun 7, 2025
384807f
Comment fix, fix test
samuel-williams-da Jun 8, 2025
760fdc0
Merge branch 'master' into record-dot-completion-fix
samuel-williams-da Jun 8, 2025
320c03b
Appease pre-commit
samuel-williams-da Jun 8, 2025
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31 changes: 30 additions & 1 deletion ghcide-test/exe/CompletionTests.hs
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Original file line number Diff line number Diff line change
Expand Up @@ -211,7 +211,36 @@ localCompletionTests = [

compls <- getCompletions doc (Position 0 15)
liftIO $ filter ("AAA" `T.isPrefixOf`) (mapMaybe _insertText compls) @?= ["AAAAA"]
pure ()
pure (),
completionTest
"polymorphic record dot completion"
[ "{-# LANGUAGE OverloadedRecordDot #-}"
, "module A () where"
, "data Record = Record"
, " { field1 :: Int"
, " , field2 :: Int"
, " }"
, "foo record = record.f"
]
(Position 6 21)
[("field1", CompletionItemKind_Function, "field1", True, False, Nothing)
,("field2", CompletionItemKind_Function, "field2", True, False, Nothing)
],
completionTest
"qualified polymorphic record dot completion"
[ "{-# LANGUAGE OverloadedRecordDot #-}"
, "module A () where"
, "data Record = Record"
, " { field1 :: Int"
, " , field2 :: Int"
, " }"
, "someValue = undefined"
, "foo = A.someValue.f"
]
(Position 7 19)
[("field1", CompletionItemKind_Function, "field1", True, False, Nothing)
,("field2", CompletionItemKind_Function, "field2", True, False, Nothing)
]
]

nonLocalCompletionTests :: [TestTree]
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2 changes: 1 addition & 1 deletion ghcide/src/Development/IDE/Plugin/Completions/Logic.hs
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Expand Up @@ -912,7 +912,7 @@ getCompletionPrefixFromRope pos@(Position l c) ropetext =
[] -> Nothing
(x:xs) -> do
let modParts = reverse $ filter (not .T.null) xs
modName = T.intercalate "." modParts
modName = if all (isUpper . T.head) modParts then T.intercalate "." modParts else ""
return $ PosPrefixInfo { fullLine = curLine, prefixScope = modName, prefixText = x, cursorPos = pos }

completionPrefixPos :: PosPrefixInfo -> Position
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