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Diffstat (limited to 'src/test/ui/infinite/infinite-instantiation.rs')
-rw-r--r-- | src/test/ui/infinite/infinite-instantiation.rs | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/src/test/ui/infinite/infinite-instantiation.rs b/src/test/ui/infinite/infinite-instantiation.rs new file mode 100644 index 000000000..9b9f332ca --- /dev/null +++ b/src/test/ui/infinite/infinite-instantiation.rs @@ -0,0 +1,29 @@ +// build-fail +// normalize-stderr-test: ".nll/" -> "/" + +trait ToOpt: Sized { + fn to_option(&self) -> Option<Self>; +} + +impl ToOpt for usize { + fn to_option(&self) -> Option<usize> { + Some(*self) + } +} + +impl<T:Clone> ToOpt for Option<T> { + fn to_option(&self) -> Option<Option<T>> { + Some((*self).clone()) + } +} + +fn function<T:ToOpt + Clone>(counter: usize, t: T) { + if counter > 0 { + function(counter - 1, t.to_option()); + //~^ ERROR reached the recursion limit while instantiating `function::<Option< + } +} + +fn main() { + function(22, 22); +} |