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Diffstat (limited to '')
-rw-r--r-- | src/test/ui/issues/issue-30438-a.rs | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/src/test/ui/issues/issue-30438-a.rs b/src/test/ui/issues/issue-30438-a.rs new file mode 100644 index 000000000..0d4eb796a --- /dev/null +++ b/src/test/ui/issues/issue-30438-a.rs @@ -0,0 +1,23 @@ +// Original regression test for Issue #30438. + +use std::ops::Index; + +struct Test<'a> { + s: &'a String +} + +impl <'a> Index<usize> for Test<'a> { + type Output = Test<'a>; + fn index(&self, _: usize) -> &Self::Output { + return &Test { s: &self.s}; + //~^ ERROR: cannot return reference to temporary value + } +} + +fn main() { + let s = "Hello World".to_string(); + let test = Test{s: &s}; + let r = &test[0]; + println!("{}", test.s); // OK since test is valid + println!("{}", r.s); // Segfault since value pointed by r has already been dropped +} |