23 lines
742 B
Lua
23 lines
742 B
Lua
local env = environment()
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local m = mk_metavar("m", mk_arrow(Bool, Bool))
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local a = Local("a", Bool)
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print(env:normalize(Fun(a, m)))
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print(env:normalize(Fun(a, m(a))))
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local m2 = mk_metavar("m2", mk_arrow(Bool, Bool, Bool))
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print(env:normalize(Fun(a, (m2(a))(a))))
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env:type_check(m)
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env:type_check(Fun(a, m(a)))
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env:type_check(Fun(a, (m2(a))(a)))
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local m3 = mk_metavar("m3", mk_metavar("m4", mk_sort(mk_meta_univ("l"))))
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env:type_check(m3)
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-- The following call fails, because the type checker will try to
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-- create a constraint, but constraint generation is not supported by
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-- the type checker used to implement the method type_check
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assert(not pcall(function()
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env:type_check(m3(a))
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end
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))
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