diff options
Diffstat (limited to 'src/test/ui/variance/variance-use-invariant-struct-1.stderr')
| -rw-r--r-- | src/test/ui/variance/variance-use-invariant-struct-1.stderr | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/src/test/ui/variance/variance-use-invariant-struct-1.stderr b/src/test/ui/variance/variance-use-invariant-struct-1.stderr new file mode 100644 index 000000000..b9ca6e7d5 --- /dev/null +++ b/src/test/ui/variance/variance-use-invariant-struct-1.stderr @@ -0,0 +1,34 @@ +error: lifetime may not live long enough + --> $DIR/variance-use-invariant-struct-1.rs:10:5 + | +LL | fn foo<'min,'max>(v: SomeStruct<&'max ()>) + | ---- ---- lifetime `'max` defined here + | | + | lifetime `'min` defined here +... +LL | v + | ^ function was supposed to return data with lifetime `'max` but it is returning data with lifetime `'min` + | + = help: consider adding the following bound: `'min: 'max` + = note: requirement occurs because of the type `SomeStruct<&()>`, which makes the generic argument `&()` invariant + = note: the struct `SomeStruct<T>` is invariant over the parameter `T` + = help: see <https://doc.rust-lang.org/nomicon/subtyping.html> for more information about variance + +error: lifetime may not live long enough + --> $DIR/variance-use-invariant-struct-1.rs:18:5 + | +LL | fn bar<'min,'max>(v: SomeStruct<&'min ()>) + | ---- ---- lifetime `'max` defined here + | | + | lifetime `'min` defined here +... +LL | v + | ^ function was supposed to return data with lifetime `'max` but it is returning data with lifetime `'min` + | + = help: consider adding the following bound: `'min: 'max` + = note: requirement occurs because of the type `SomeStruct<&()>`, which makes the generic argument `&()` invariant + = note: the struct `SomeStruct<T>` is invariant over the parameter `T` + = help: see <https://doc.rust-lang.org/nomicon/subtyping.html> for more information about variance + +error: aborting due to 2 previous errors + |