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Diffstat (limited to '')
-rw-r--r-- | src/test/ui/regions/region-invariant-static-error-reporting.rs | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/test/ui/regions/region-invariant-static-error-reporting.rs b/src/test/ui/regions/region-invariant-static-error-reporting.rs new file mode 100644 index 000000000..c8288b592 --- /dev/null +++ b/src/test/ui/regions/region-invariant-static-error-reporting.rs @@ -0,0 +1,21 @@ +// This test checks that the error messages you get for this example +// at least mention `'a` and `'static`. The precise messages can drift +// over time, but this test used to exhibit some pretty bogus messages +// that were not remotely helpful. + +// error-pattern:argument requires that `'a` must outlive `'static` + +struct Invariant<'a>(Option<&'a mut &'a mut ()>); + +fn mk_static() -> Invariant<'static> { Invariant(None) } + +fn unify<'a>(x: Option<Invariant<'a>>, f: fn(Invariant<'a>)) { + let bad = if x.is_some() { + x.unwrap() //~ ERROR borrowed data escapes outside of function [E0521] + } else { + mk_static() + }; + f(bad); +} + +fn main() {} |