The engine should raise a syntax error when a complex type is specified instead of one or more of his leaves about tartiflette HOT 2 CLOSED

Hum, i'll look at the spec, to found the correct error to raise here. But I think it's pretty logic, you ask for an object whithout asking for a field you get an empty shell ;). Clearly here you have the default value of a non explored object. It should be pretty straight forward to detect and raise error during parsing.

If you're out of a field without child and you're not a leaf -> error.

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for reference : https://facebook.github.io/graphql/June2018/#sec-Leaf-Field-Selections

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