Local type inference

Abstract
We study two partial type inference methods for a language combining subtyping and impredicative polymorphism.Both methods are local in the sense that missing annotations are recovered using only informationfrom adjacent nodes in the syntax tree, without long-distance constraints such as unification variables. Onemethod infers type arguments in polymorphic applications using a local constraint solver. The other infersannotations on bound variables in function abstractions by propagating...

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