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https://github.com/leanprover/lean4.git
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08eb78a5b2
This PR sets up the new integrated test/bench suite. It then migrates all benchmarks and some related tests to the new suite. There's also some documentation and some linting. For now, a lot of the old tests are left alone so this PR doesn't become even larger than it already is. Eventually, all tests should be migrated to the new suite though so there isn't a confusing mix of two systems.
50 lines
907 B
Lean4
50 lines
907 B
Lean4
/-!
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# Testing the autoparam feature
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-/
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def f (x y : Nat) (h : x = y := by assumption) : Nat :=
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x + x
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def g (x y z : Nat) (h : x = y) : Nat :=
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f x y
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def f2 (x y : Nat) (h : x = y := by exact rfl) : Nat :=
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x + x
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def f3 (x y : Nat) (h : x = y := by exact Eq.refl x) : Nat :=
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x + x
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#check fun x => f2 x x
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#check fun x => f3 x x
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/--
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error: could not synthesize default value for parameter 'h' using tactics
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---
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error: Tactic `assumption` failed
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⊢ 1 = 2
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-/
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#guard_msgs in example := f 1 2
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/-!
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From #2950, field autoparam should mention which field failed.
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-/
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structure Foo where
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val : String
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len : Nat := val.length
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inv : val.length = len := by next => decide
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/--
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error: could not synthesize default value for field 'inv' of 'Foo' using tactics
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---
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error: Tactic `decide` proved that the proposition
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"abc".length = 5
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is false
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-/
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#guard_msgs in
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def test2 : Foo := {
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val := "abc"
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len := 5
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}
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