src/test/ui/c-variadic/variadic-ffi-4.stderr

   1 error[E0621]: explicit lifetime required in the type of `ap`
   2   --> $DIR/variadic-ffi-4.rs:8:5
   3    |
   4 LL | pub unsafe extern "C" fn no_escape0<'f>(_: usize, ap: ...) -> VaListImpl<'f> {
   5    |                                                       --- help: add explicit lifetime `'f` to the type of `ap`: `core::ffi::VaListImpl<'f>`
   6 LL |     ap
   7    |     ^^ lifetime `'f` required
   8
   9 error[E0621]: explicit lifetime required in the type of `ap`
  10   --> $DIR/variadic-ffi-4.rs:12:5
  11    |
  12 LL | pub unsafe extern "C" fn no_escape1(_: usize, ap: ...) -> VaListImpl<'static> {
  13    |                                                   --- help: add explicit lifetime `'static` to the type of `ap`: `core::ffi::VaListImpl<'static>`
  14 LL |     ap
  15    |     ^^ lifetime `'static` required
  16
  17 error[E0495]: cannot infer an appropriate lifetime due to conflicting requirements
  18   --> $DIR/variadic-ffi-4.rs:16:33
  19    |
  20 LL |     let _ = ap.with_copy(|ap| { ap });
  21    |                                 ^^
  22    |
  23 note: first, the lifetime cannot outlive the anonymous lifetime #2 defined on the body at 16:26...
  24   --> $DIR/variadic-ffi-4.rs:16:26
  25    |
  26 LL |     let _ = ap.with_copy(|ap| { ap });
  27    |                          ^^^^^^^^^^^
  28    = note: ...so that the expression is assignable:
  29            expected core::ffi::VaList<'_, '_>
  30               found core::ffi::VaList<'_, '_>
  31 note: but, the lifetime must be valid for the method call at 16:13...
  32   --> $DIR/variadic-ffi-4.rs:16:13
  33    |
  34 LL |     let _ = ap.with_copy(|ap| { ap });
  35    |             ^^^^^^^^^^^^^^^^^^^^^^^^^
  36 note: ...so type `core::ffi::VaList<'_, '_>` of expression is valid during the expression
  37   --> $DIR/variadic-ffi-4.rs:16:13
  38    |
  39 LL |     let _ = ap.with_copy(|ap| { ap });
  40    |             ^^^^^^^^^^^^^^^^^^^^^^^^^
  41
  42 error[E0308]: mismatched types
  43   --> $DIR/variadic-ffi-4.rs:20:12
  44    |
  45 LL |     *ap0 = ap1;
  46    |            ^^^ lifetime mismatch
  47    |
  48    = note: expected type `core::ffi::VaListImpl<'_>`
  49               found type `core::ffi::VaListImpl<'_>`
  50 note: the anonymous lifetime #3 defined on the function body at 19:1...
  51   --> $DIR/variadic-ffi-4.rs:19:1
  52    |
  53 LL | / pub unsafe extern "C" fn no_escape3(_: usize, mut ap0: &mut VaListImpl, mut ap1: ...) {
  54 LL | |     *ap0 = ap1;
  55 LL | |
  56 LL | | }
  57    | |_^
  58 note: ...does not necessarily outlive the anonymous lifetime #2 defined on the function body at 19:1
  59   --> $DIR/variadic-ffi-4.rs:19:1
  60    |
  61 LL | / pub unsafe extern "C" fn no_escape3(_: usize, mut ap0: &mut VaListImpl, mut ap1: ...) {
  62 LL | |     *ap0 = ap1;
  63 LL | |
  64 LL | | }
  65    | |_^
  66
  67 error[E0308]: mismatched types
  68   --> $DIR/variadic-ffi-4.rs:20:12
  69    |
  70 LL |     *ap0 = ap1;
  71    |            ^^^ lifetime mismatch
  72    |
  73    = note: expected type `core::ffi::VaListImpl<'_>`
  74               found type `core::ffi::VaListImpl<'_>`
  75 note: the anonymous lifetime #2 defined on the function body at 19:1...
  76   --> $DIR/variadic-ffi-4.rs:19:1
  77    |
  78 LL | / pub unsafe extern "C" fn no_escape3(_: usize, mut ap0: &mut VaListImpl, mut ap1: ...) {
  79 LL | |     *ap0 = ap1;
  80 LL | |
  81 LL | | }
  82    | |_^
  83 note: ...does not necessarily outlive the anonymous lifetime #3 defined on the function body at 19:1
  84   --> $DIR/variadic-ffi-4.rs:19:1
  85    |
  86 LL | / pub unsafe extern "C" fn no_escape3(_: usize, mut ap0: &mut VaListImpl, mut ap1: ...) {
  87 LL | |     *ap0 = ap1;
  88 LL | |
  89 LL | | }
  90    | |_^
  91
  92 error[E0490]: a value of type `core::ffi::VaListImpl<'_>` is borrowed for too long
  93   --> $DIR/variadic-ffi-4.rs:25:11
  94    |
  95 LL |     ap0 = &mut ap1;
  96    |           ^^^^^^^^
  97    |
  98 note: the type is valid for the anonymous lifetime #1 defined on the function body at 24:1
  99   --> $DIR/variadic-ffi-4.rs:24:1
 100    |
 101 LL | / pub unsafe extern "C" fn no_escape4(_: usize, ap0: &mut VaListImpl, mut ap1: ...) {
 102 LL | |     ap0 = &mut ap1;
 103 LL | |
 104 LL | |
 105 LL | |
 106 LL | |
 107 LL | | }
 108    | |_^
 109 note: but the borrow lasts for the anonymous lifetime #3 defined on the function body at 24:1
 110   --> $DIR/variadic-ffi-4.rs:24:1
 111    |
 112 LL | / pub unsafe extern "C" fn no_escape4(_: usize, ap0: &mut VaListImpl, mut ap1: ...) {
 113 LL | |     ap0 = &mut ap1;
 114 LL | |
 115 LL | |
 116 LL | |
 117 LL | |
 118 LL | | }
 119    | |_^
 120
 121 error[E0308]: mismatched types
 122   --> $DIR/variadic-ffi-4.rs:25:11
 123    |
 124 LL |     ap0 = &mut ap1;
 125    |           ^^^^^^^^ lifetime mismatch
 126    |
 127    = note: expected type `&mut core::ffi::VaListImpl<'_>`
 128               found type `&mut core::ffi::VaListImpl<'_>`
 129 note: the anonymous lifetime #3 defined on the function body at 24:1...
 130   --> $DIR/variadic-ffi-4.rs:24:1
 131    |
 132 LL | / pub unsafe extern "C" fn no_escape4(_: usize, ap0: &mut VaListImpl, mut ap1: ...) {
 133 LL | |     ap0 = &mut ap1;
 134 LL | |
 135 LL | |
 136 LL | |
 137 LL | |
 138 LL | | }
 139    | |_^
 140 note: ...does not necessarily outlive the anonymous lifetime #2 defined on the function body at 24:1
 141   --> $DIR/variadic-ffi-4.rs:24:1
 142    |
 143 LL | / pub unsafe extern "C" fn no_escape4(_: usize, ap0: &mut VaListImpl, mut ap1: ...) {
 144 LL | |     ap0 = &mut ap1;
 145 LL | |
 146 LL | |
 147 LL | |
 148 LL | |
 149 LL | | }
 150    | |_^
 151
 152 error[E0308]: mismatched types
 153   --> $DIR/variadic-ffi-4.rs:25:11
 154    |
 155 LL |     ap0 = &mut ap1;
 156    |           ^^^^^^^^ lifetime mismatch
 157    |
 158    = note: expected type `&mut core::ffi::VaListImpl<'_>`
 159               found type `&mut core::ffi::VaListImpl<'_>`
 160 note: the anonymous lifetime #2 defined on the function body at 24:1...
 161   --> $DIR/variadic-ffi-4.rs:24:1
 162    |
 163 LL | / pub unsafe extern "C" fn no_escape4(_: usize, ap0: &mut VaListImpl, mut ap1: ...) {
 164 LL | |     ap0 = &mut ap1;
 165 LL | |
 166 LL | |
 167 LL | |
 168 LL | |
 169 LL | | }
 170    | |_^
 171 note: ...does not necessarily outlive the anonymous lifetime #3 defined on the function body at 24:1
 172   --> $DIR/variadic-ffi-4.rs:24:1
 173    |
 174 LL | / pub unsafe extern "C" fn no_escape4(_: usize, ap0: &mut VaListImpl, mut ap1: ...) {
 175 LL | |     ap0 = &mut ap1;
 176 LL | |
 177 LL | |
 178 LL | |
 179 LL | |
 180 LL | | }
 181    | |_^
 182
 183 error[E0495]: cannot infer an appropriate lifetime for borrow expression due to conflicting requirements
 184   --> $DIR/variadic-ffi-4.rs:25:11
 185    |
 186 LL |     ap0 = &mut ap1;
 187    |           ^^^^^^^^
 188    |
 189 note: first, the lifetime cannot outlive the anonymous lifetime #3 defined on the function body at 24:1...
 190   --> $DIR/variadic-ffi-4.rs:24:1
 191    |
 192 LL | / pub unsafe extern "C" fn no_escape4(_: usize, ap0: &mut VaListImpl, mut ap1: ...) {
 193 LL | |     ap0 = &mut ap1;
 194 LL | |
 195 LL | |
 196 LL | |
 197 LL | |
 198 LL | | }
 199    | |_^
 200 note: ...so that the type `core::ffi::VaListImpl<'_>` is not borrowed for too long
 201   --> $DIR/variadic-ffi-4.rs:25:11
 202    |
 203 LL |     ap0 = &mut ap1;
 204    |           ^^^^^^^^
 205 note: but, the lifetime must be valid for the anonymous lifetime #1 defined on the function body at 24:1...
 206   --> $DIR/variadic-ffi-4.rs:24:1
 207    |
 208 LL | / pub unsafe extern "C" fn no_escape4(_: usize, ap0: &mut VaListImpl, mut ap1: ...) {
 209 LL | |     ap0 = &mut ap1;
 210 LL | |
 211 LL | |
 212 LL | |
 213 LL | |
 214 LL | | }
 215    | |_^
 216 note: ...so that reference does not outlive borrowed content
 217   --> $DIR/variadic-ffi-4.rs:25:11
 218    |
 219 LL |     ap0 = &mut ap1;
 220    |           ^^^^^^^^
 221
 222 error[E0308]: mismatched types
 223   --> $DIR/variadic-ffi-4.rs:33:12
 224    |
 225 LL |     *ap0 = ap1.clone();
 226    |            ^^^^^^^^^^^ lifetime mismatch
 227    |
 228    = note: expected type `core::ffi::VaListImpl<'_>`
 229               found type `core::ffi::VaListImpl<'_>`
 230 note: the anonymous lifetime #3 defined on the function body at 32:1...
 231   --> $DIR/variadic-ffi-4.rs:32:1
 232    |
 233 LL | / pub unsafe extern "C" fn no_escape5(_: usize, mut ap0: &mut VaListImpl, mut ap1: ...) {
 234 LL | |     *ap0 = ap1.clone();
 235 LL | |
 236 LL | | }
 237    | |_^
 238 note: ...does not necessarily outlive the anonymous lifetime #2 defined on the function body at 32:1
 239   --> $DIR/variadic-ffi-4.rs:32:1
 240    |
 241 LL | / pub unsafe extern "C" fn no_escape5(_: usize, mut ap0: &mut VaListImpl, mut ap1: ...) {
 242 LL | |     *ap0 = ap1.clone();
 243 LL | |
 244 LL | | }
 245    | |_^
 246
 247 error[E0308]: mismatched types
 248   --> $DIR/variadic-ffi-4.rs:33:12
 249    |
 250 LL |     *ap0 = ap1.clone();
 251    |            ^^^^^^^^^^^ lifetime mismatch
 252    |
 253    = note: expected type `core::ffi::VaListImpl<'_>`
 254               found type `core::ffi::VaListImpl<'_>`
 255 note: the anonymous lifetime #2 defined on the function body at 32:1...
 256   --> $DIR/variadic-ffi-4.rs:32:1
 257    |
 258 LL | / pub unsafe extern "C" fn no_escape5(_: usize, mut ap0: &mut VaListImpl, mut ap1: ...) {
 259 LL | |     *ap0 = ap1.clone();
 260 LL | |
 261 LL | | }
 262    | |_^
 263 note: ...does not necessarily outlive the anonymous lifetime #3 defined on the function body at 32:1
 264   --> $DIR/variadic-ffi-4.rs:32:1
 265    |
 266 LL | / pub unsafe extern "C" fn no_escape5(_: usize, mut ap0: &mut VaListImpl, mut ap1: ...) {
 267 LL | |     *ap0 = ap1.clone();
 268 LL | |
 269 LL | | }
 270    | |_^
 271
 272 error: aborting due to 11 previous errors
 273
 274 Some errors have detailed explanations: E0308, E0621.
 275 For more information about an error, try `rustc --explain E0308`.