parameterized types #1084
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parameterized types #1084
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xzxzlala
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Add ground case for forall type (as Forall _ . ?).
Add langdocs for the new constructs.
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Based on branch poly-adt-after2, I implemented the parameterized types.
I merged the forall type and typAp/typFun.
Add the forms tpatAp and let the var could appear in tpat and typ.
Add a new type "Ap" and its rules.
Add the statics of the parameterized types. (tyalias of Ap)
Revise the pattern match rules in evaluator to fit the "Forall" constructors.
Here is an example of the parameterized types.
Note that the type of constructor of the parameterized types is Forall type, so we need to first use @<> to apply the type.