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Diffstat (limited to '')
-rw-r--r-- | src/test/ui/issues/issue-5008-borrowed-traitobject-method-call.rs | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/src/test/ui/issues/issue-5008-borrowed-traitobject-method-call.rs b/src/test/ui/issues/issue-5008-borrowed-traitobject-method-call.rs new file mode 100644 index 000000000..fc869ae4f --- /dev/null +++ b/src/test/ui/issues/issue-5008-borrowed-traitobject-method-call.rs @@ -0,0 +1,34 @@ +// run-pass +/* + +#5008 cast to &Trait causes code to segfault on method call + +It fixes itself if the &Trait is changed to @Trait. +*/ + +trait Debuggable { + fn debug_name(&self) -> String; +} + +#[derive(Clone)] +struct Thing { + name: String, +} + +impl Thing { + fn new() -> Thing { Thing { name: "dummy".to_string() } } +} + +impl Debuggable for Thing { + fn debug_name(&self) -> String { self.name.clone() } +} + +fn print_name(x: &dyn Debuggable) +{ + println!("debug_name = {}", x.debug_name()); +} + +pub fn main() { + let thing = Thing::new(); + print_name(&thing as &dyn Debuggable); +} |