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Diffstat (limited to 'tests/ui/c-variadic/variadic-ffi-4.stderr')
| -rw-r--r-- | tests/ui/c-variadic/variadic-ffi-4.stderr | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/tests/ui/c-variadic/variadic-ffi-4.stderr b/tests/ui/c-variadic/variadic-ffi-4.stderr new file mode 100644 index 00000000000..6f8e53298ac --- /dev/null +++ b/tests/ui/c-variadic/variadic-ffi-4.stderr @@ -0,0 +1,150 @@ +error: lifetime may not live long enough + --> $DIR/variadic-ffi-4.rs:8:5 + | +LL | pub unsafe extern "C" fn no_escape0<'f>(_: usize, ap: ...) -> VaListImpl<'f> { + | -- -- has type `VaListImpl<'1>` + | | + | lifetime `'f` defined here +LL | ap + | ^^ function was supposed to return data with lifetime `'1` but it is returning data with lifetime `'f` + | + = note: requirement occurs because of the type `VaListImpl<'_>`, which makes the generic argument `'_` invariant + = note: the struct `VaListImpl<'f>` is invariant over the parameter `'f` + = help: see <https://doc.rust-lang.org/nomicon/subtyping.html> for more information about variance + +error: lifetime may not live long enough + --> $DIR/variadic-ffi-4.rs:8:5 + | +LL | pub unsafe extern "C" fn no_escape0<'f>(_: usize, ap: ...) -> VaListImpl<'f> { + | -- -- has type `VaListImpl<'1>` + | | + | lifetime `'f` defined here +LL | ap + | ^^ function was supposed to return data with lifetime `'f` but it is returning data with lifetime `'1` + | + = note: requirement occurs because of the type `VaListImpl<'_>`, which makes the generic argument `'_` invariant + = note: the struct `VaListImpl<'f>` is invariant over the parameter `'f` + = help: see <https://doc.rust-lang.org/nomicon/subtyping.html> for more information about variance + +error: lifetime may not live long enough + --> $DIR/variadic-ffi-4.rs:14:5 + | +LL | pub unsafe extern "C" fn no_escape1(_: usize, ap: ...) -> VaListImpl<'static> { + | -- has type `VaListImpl<'1>` +LL | ap + | ^^ returning this value requires that `'1` must outlive `'static` + | + = note: requirement occurs because of the type `VaListImpl<'_>`, which makes the generic argument `'_` invariant + = note: the struct `VaListImpl<'f>` is invariant over the parameter `'f` + = help: see <https://doc.rust-lang.org/nomicon/subtyping.html> for more information about variance + +error: lifetime may not live long enough + --> $DIR/variadic-ffi-4.rs:18:31 + | +LL | let _ = ap.with_copy(|ap| ap); + | --- ^^ returning this value requires that `'1` must outlive `'2` + | | | + | | return type of closure is VaList<'2, '_> + | has type `VaList<'1, '_>` + +error: lifetime may not live long enough + --> $DIR/variadic-ffi-4.rs:22:5 + | +LL | pub unsafe extern "C" fn no_escape3(_: usize, mut ap0: &mut VaListImpl, mut ap1: ...) { + | ------- ------- has type `VaListImpl<'2>` + | | + | has type `&mut VaListImpl<'1>` +LL | *ap0 = ap1; + | ^^^^ assignment requires that `'1` must outlive `'2` + | + = note: requirement occurs because of the type `VaListImpl<'_>`, which makes the generic argument `'_` invariant + = note: the struct `VaListImpl<'f>` is invariant over the parameter `'f` + = help: see <https://doc.rust-lang.org/nomicon/subtyping.html> for more information about variance + +error: lifetime may not live long enough + --> $DIR/variadic-ffi-4.rs:22:5 + | +LL | pub unsafe extern "C" fn no_escape3(_: usize, mut ap0: &mut VaListImpl, mut ap1: ...) { + | ------- ------- has type `VaListImpl<'2>` + | | + | has type `&mut VaListImpl<'1>` +LL | *ap0 = ap1; + | ^^^^ assignment requires that `'2` must outlive `'1` + | + = note: requirement occurs because of the type `VaListImpl<'_>`, which makes the generic argument `'_` invariant + = note: the struct `VaListImpl<'f>` is invariant over the parameter `'f` + = help: see <https://doc.rust-lang.org/nomicon/subtyping.html> for more information about variance + +error: lifetime may not live long enough + --> $DIR/variadic-ffi-4.rs:28:5 + | +LL | pub unsafe extern "C" fn no_escape4(_: usize, mut ap0: &mut VaListImpl, mut ap1: ...) { + | ------- ------- has type `VaListImpl<'2>` + | | + | has type `&mut VaListImpl<'1>` +LL | ap0 = &mut ap1; + | ^^^^^^^^^^^^^^ assignment requires that `'1` must outlive `'2` + | + = note: requirement occurs because of a mutable reference to `VaListImpl<'_>` + = note: mutable references are invariant over their type parameter + = help: see <https://doc.rust-lang.org/nomicon/subtyping.html> for more information about variance + +error: lifetime may not live long enough + --> $DIR/variadic-ffi-4.rs:28:5 + | +LL | pub unsafe extern "C" fn no_escape4(_: usize, mut ap0: &mut VaListImpl, mut ap1: ...) { + | ------- ------- has type `VaListImpl<'2>` + | | + | has type `&mut VaListImpl<'1>` +LL | ap0 = &mut ap1; + | ^^^^^^^^^^^^^^ assignment requires that `'2` must outlive `'1` + | + = note: requirement occurs because of a mutable reference to `VaListImpl<'_>` + = note: mutable references are invariant over their type parameter + = help: see <https://doc.rust-lang.org/nomicon/subtyping.html> for more information about variance + +error[E0597]: `ap1` does not live long enough + --> $DIR/variadic-ffi-4.rs:28:11 + | +LL | pub unsafe extern "C" fn no_escape4(_: usize, mut ap0: &mut VaListImpl, mut ap1: ...) { + | - let's call the lifetime of this reference `'3` +LL | ap0 = &mut ap1; + | ------^^^^^^^^ + | | | + | | borrowed value does not live long enough + | assignment requires that `ap1` is borrowed for `'3` +... +LL | } + | - `ap1` dropped here while still borrowed + +error: lifetime may not live long enough + --> $DIR/variadic-ffi-4.rs:35:12 + | +LL | pub unsafe extern "C" fn no_escape5(_: usize, mut ap0: &mut VaListImpl, mut ap1: ...) { + | ------- ------- has type `VaListImpl<'2>` + | | + | has type `&mut VaListImpl<'1>` +LL | *ap0 = ap1.clone(); + | ^^^^^^^^^^^ argument requires that `'1` must outlive `'2` + | + = note: requirement occurs because of the type `VaListImpl<'_>`, which makes the generic argument `'_` invariant + = note: the struct `VaListImpl<'f>` is invariant over the parameter `'f` + = help: see <https://doc.rust-lang.org/nomicon/subtyping.html> for more information about variance + +error: lifetime may not live long enough + --> $DIR/variadic-ffi-4.rs:35:12 + | +LL | pub unsafe extern "C" fn no_escape5(_: usize, mut ap0: &mut VaListImpl, mut ap1: ...) { + | ------- ------- has type `VaListImpl<'2>` + | | + | has type `&mut VaListImpl<'1>` +LL | *ap0 = ap1.clone(); + | ^^^^^^^^^^^ argument requires that `'2` must outlive `'1` + | + = note: requirement occurs because of the type `VaListImpl<'_>`, which makes the generic argument `'_` invariant + = note: the struct `VaListImpl<'f>` is invariant over the parameter `'f` + = help: see <https://doc.rust-lang.org/nomicon/subtyping.html> for more information about variance + +error: aborting due to 11 previous errors + +For more information about this error, try `rustc --explain E0597`. |