fa1da03d50
This PR updates the styling and wording of error messages produced in inductive type declarations and anonymous constructor notation, including hints for inferable constructor visibility updates.
45 lines
1,002 B
Text
45 lines
1,002 B
Text
set_option pp.mvars false
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structure Foo := (n : Nat)
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def Foo.sum (xs : List Foo) : Foo :=
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xs.foldl (λ s x => ⟨s.n + x.n⟩) ⟨0⟩
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/--
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info: let x1 := { n := 1 };
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let x2 := { n := 2 };
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let x3 := { n := 3 };
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let x5 := { n := 5 };
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let x6 := { n := 6 };
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Foo.sum [x1, x2, x3, x5, x6] : Foo
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-/
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#guard_msgs in
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#check
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let x1 := ⟨1⟩
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let x2 := ⟨2⟩
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let x3 := ⟨3⟩
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-- let x4 := ⟨4⟩; -- If this line is uncommented we get the error at `⟨`
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let x5 := ⟨5⟩
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let x6 := ⟨6⟩
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Foo.sum [x1, x2, x3, x5, x6]
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/--
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error: Invalid `⟨...⟩` notation: The expected type of this term could not be determined
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---
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info: let x1 := { n := 1 };
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let x2 := { n := 2 };
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let x3 := { n := 3 };
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let x4 := ?_;
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let x5 := { n := 5 };
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let x6 := { n := 6 };
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Foo.sum [x1, x2, x3, x5, x6] : Foo
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-/
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#guard_msgs in
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#check
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let x1 := ⟨1⟩
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let x2 := ⟨2⟩
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let x3 := ⟨3⟩
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let x4 := ⟨4⟩; -- If this line is uncommented we get the error at `⟨`
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let x5 := ⟨5⟩
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let x6 := ⟨6⟩
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Foo.sum [x1, x2, x3, x5, x6]
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