(graphcache) - Add root operation type traversal warning #859
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JoviDeCroock
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Jun 12, 2020
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Resolve #858
Summary
Add warning for queries that traverse an Operation Root Type (Mutation / Subscription types occuring in a query result)
It's possible for someone to explicitly use
MutationorSubscriptioninsideQuery, which by convention is discouraged and shouldn't be done. The worst that we do in such a case is now issue a warning, but I believe it's more important to prevent this mistake than to ignore it silentily, especially since it's extremely uncommon.Set of changes
readSelectionfor non-Query root types and issue warningerrors.md