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Fix "variable is not used" error

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This commit is contained in:
Matei Adriel 2023-12-15 05:17:04 +01:00 committed by Eugen Wissner
parent b1c5a568dd
commit 59aa010f0b
1 changed files with 19 additions and 4 deletions
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23
src/Language/GraphQL/Validate/Rules.hs
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@ -668,11 +668,26 @@ variableUsageDifference difference errorMessage = OperationDefinitionRule $ \cas
= filterSelections' selections
>>= lift . mapReaderT (<> mapDirectives directives') . pure
findDirectiveVariables (Full.Directive _ arguments _) = mapArguments arguments
mapArguments = Seq.fromList . mapMaybe findArgumentVariables
mapArguments = Seq.fromList . (>>= findArgumentVariables)
mapDirectives = foldMap findDirectiveVariables
findArgumentVariables (Full.Argument _ Full.Node{ node = Full.Variable value', ..} _) =
Just (value', [location])
findArgumentVariables _ = Nothing
findArgumentVariables (Full.Argument _ Full.Node{node = value, ..} _) =
findValueVariables location value
findValueVariables location (Full.Variable value') = [(value', [location])]
findValueVariables location (Full.List values) =
values
>>= (\(Full.Node{node = value}) -> findValueVariables location value)
findValueVariables _ (Full.Object fields) =
fields
>>= ( \( Full.ObjectField
{ location = location
, value = Full.Node{node = value}
}
) -> findValueVariables location value
)
findValueVariables _ _ = []
makeError operationName (variableName, locations') = Error
{ message = errorMessage operationName variableName
, locations = locations'