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Diffstat (limited to 'src/test/ui/regions/regions-close-over-type-parameter-multiple.rs')
-rw-r--r-- | src/test/ui/regions/regions-close-over-type-parameter-multiple.rs | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/src/test/ui/regions/regions-close-over-type-parameter-multiple.rs b/src/test/ui/regions/regions-close-over-type-parameter-multiple.rs new file mode 100644 index 000000000..e032a94c3 --- /dev/null +++ b/src/test/ui/regions/regions-close-over-type-parameter-multiple.rs @@ -0,0 +1,24 @@ +// Various tests where we over type parameters with multiple lifetime +// bounds. + +trait SomeTrait { fn get(&self) -> isize; } + + +fn make_object_good1<'a,'b,A:SomeTrait+'a+'b>(v: A) -> Box<dyn SomeTrait + 'a> { + // A outlives 'a AND 'b... + Box::new(v) as Box<dyn SomeTrait + 'a> // ...hence this type is safe. +} + +fn make_object_good2<'a,'b,A:SomeTrait+'a+'b>(v: A) -> Box<dyn SomeTrait + 'b> { + // A outlives 'a AND 'b... + Box::new(v) as Box<dyn SomeTrait + 'b> // ...hence this type is safe. +} + +fn make_object_bad<'a,'b,'c,A:SomeTrait+'a+'b>(v: A) -> Box<dyn SomeTrait + 'c> { + // A outlives 'a AND 'b...but not 'c. + Box::new(v) as Box<dyn SomeTrait + 'a> + //~^ ERROR lifetime may not live long enough +} + +fn main() { +} |