c545e7b0c9
When resolving anonymous dot notation (`.ident x y z`), it would reduce the expected type to whnf. Now, it unfolds definitions step-by-step, even if the type synonym is for a pi type like so ```lean def Foo : Prop := ∀ a : Nat, a = a protected theorem Foo.intro : Foo := sorry example : Foo := .intro ``` Closes #4761
17 lines
454 B
Text
17 lines
454 B
Text
/-!
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# Make sure "anonymous dot notation" works with type synonyms.
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-/
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def Foo : Prop := ∀ a : Nat, a = a
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protected theorem Foo.intro : Foo := sorry
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example : Foo := .intro
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/-!
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Making sure that the type synonym `Foo'` still works.
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This used to be unfolded during `forallTelescopeReducing`,
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and now it is "manually" unfolded in the elaboration algorithm.
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-/
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example : Nat → Option Nat := .some
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def Foo' := Nat → Option Nat
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example : Foo' := .some
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