655ec964f5
Given
```lean
structure A where
x : Nat
structure B extends A where
y : Nat
```
rather than pretty printing `{ x := 1, y := 2 : B }` as `{ toA := { x :=
1 }, y := 2 }`, it now pretty prints as `{ x := 1, y := 2 }`.
The option `pp.structureInstances.flatten` controls whether to flatten
structure instances like this.
27 lines
369 B
Text
27 lines
369 B
Text
/-!
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# Testing eta reduction for structure instances
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Implemented in PR #2478 for issue #2451.
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-/
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set_option pp.structureInstances.flatten false
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structure A where
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x : Nat
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structure B extends A
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structure C extends B
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structure D extends B
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def a : A := ⟨ 0 ⟩
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def b : B := { a with }
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#print b
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def c : C := { a with }
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#print c
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def d : D := { c with }
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#print d
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