6b93f05cd1
* feat : derive `DecidableEq` for mutual inductives * doc: document `RELEASES.md` ---------
27 lines
579 B
Text
27 lines
579 B
Text
/-! Verify that the derive handler for `DecidableEq` handles mutual inductive types-/
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-- Print the generated derivations
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set_option trace.Elab.Deriving.decEq true
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mutual
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inductive Tree : Type :=
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| node : ListTree → Tree
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inductive ListTree : Type :=
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| nil : ListTree
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| cons : Tree → ListTree → ListTree
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deriving DecidableEq
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end
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mutual
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inductive Foo₁ : Type :=
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| foo₁₁ : Foo₁
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| foo₁₂ : Foo₂ → Foo₁
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deriving DecidableEq
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inductive Foo₂ : Type :=
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| foo₂ : Foo₃ → Foo₂
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inductive Foo₃ : Type :=
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| foo₃ : Foo₁ → Foo₃
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end
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