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Diffstat (limited to 'test-suite/success/boundvars.v')
| -rw-r--r-- | test-suite/success/boundvars.v | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/test-suite/success/boundvars.v b/test-suite/success/boundvars.v new file mode 100644 index 00000000..fafe2729 --- /dev/null +++ b/test-suite/success/boundvars.v @@ -0,0 +1,14 @@ +(* An example showing a bug in the detection of free variables *) +(* "x" is not free in the common type of "x" and "y" *) + +Check forall (x z:unit) (x y : match z as x return x=x with tt => eq_refl end = eq_refl), x=x. + +(* An example showing a bug in the detection of bound variables *) + +Goal forall x, match x return x = x with 0 => eq_refl | _ => eq_refl end = eq_refl. +intro. +match goal with +|- (match x as y in nat return y = y with O => _ | S n => _ end) = _ => assert (forall y, y = 0) end. +intro. +Check x0. (* Check that "y" has been bound to "x0" while matching "match x as x0 return x0=x0 with ... end" *) +Abort. |