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Always print '_, even for erased lifetimes.

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This commit is contained in:
Camille GILLOT 2022-09-11 14:37:55 +02:00
parent 4d44e09cb1
commit aac2c7ddd8
14 changed files with 46 additions and 65 deletions
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25
compiler/rustc_middle/src/ty/print/pretty.rs
View File

@ -1088,17 +1088,9 @@ pub trait PrettyPrinter<'tcx>:
.generics_of(principal.def_id)
.own_substs_no_defaults(cx.tcx(), principal.substs);
// Don't print `'_` if there's no unerased regions.
let print_regions = args.iter().any(|arg| match arg.unpack() {
GenericArgKind::Lifetime(r) => !r.is_erased(),
_ => false,
});
let mut args = args.iter().cloned().filter(|arg| match arg.unpack() {
GenericArgKind::Lifetime(_) => print_regions,
_ => true,
});
let mut projections = predicates.projection_bounds();
let mut args = args.iter().cloned();
let arg0 = args.next();
let projection0 = projections.next();
if arg0.is_some() || projection0.is_some() {
@ -1847,22 +1839,11 @@ impl<'tcx> Printer<'tcx> for FmtPrinter<'_, 'tcx> {
) -> Result<Self::Path, Self::Error> {
self = print_prefix(self)?;
// Don't print `'_` if there's no unerased regions.
let print_regions = self.tcx.sess.verbose()
|| args.iter().any(|arg| match arg.unpack() {
GenericArgKind::Lifetime(r) => !r.is_erased(),
_ => false,
});
let args = args.iter().cloned().filter(|arg| match arg.unpack() {
GenericArgKind::Lifetime(_) => print_regions,
_ => true,
});
if args.clone().next().is_some() {
if args.first().is_some() {
if self.in_value {
write!(self, "::")?;
}
self.generic_delimiters(|cx| cx.comma_sep(args))
self.generic_delimiters(|cx| cx.comma_sep(args.iter().cloned()))
} else {
Ok(self)
}

12
src/test/mir-opt/derefer_complex_case.main.Derefer.diff
View File

@ -3,15 +3,15 @@
fn main() -> () {
let mut _0: (); // return place in scope 0 at $DIR/derefer_complex_case.rs:+0:11: +0:11
let mut _1: std::slice::Iter<i32>; // in scope 0 at $DIR/derefer_complex_case.rs:+1:17: +1:26
let mut _1: std::slice::Iter<'_, i32>; // in scope 0 at $DIR/derefer_complex_case.rs:+1:17: +1:26
let mut _2: &[i32; 2]; // in scope 0 at $DIR/derefer_complex_case.rs:+1:17: +1:26
let _3: [i32; 2]; // in scope 0 at $DIR/derefer_complex_case.rs:+1:18: +1:26
let mut _4: std::slice::Iter<i32>; // in scope 0 at $DIR/derefer_complex_case.rs:+1:17: +1:26
let mut _4: std::slice::Iter<'_, i32>; // in scope 0 at $DIR/derefer_complex_case.rs:+1:17: +1:26
let mut _5: (); // in scope 0 at $DIR/derefer_complex_case.rs:+0:1: +2:2
let _6: (); // in scope 0 at $DIR/derefer_complex_case.rs:+1:17: +1:26
let mut _7: std::option::Option<&i32>; // in scope 0 at $DIR/derefer_complex_case.rs:+1:17: +1:26
let mut _8: &mut std::slice::Iter<i32>; // in scope 0 at $DIR/derefer_complex_case.rs:+1:17: +1:26
let mut _9: &mut std::slice::Iter<i32>; // in scope 0 at $DIR/derefer_complex_case.rs:+1:17: +1:26
let mut _8: &mut std::slice::Iter<'_, i32>; // in scope 0 at $DIR/derefer_complex_case.rs:+1:17: +1:26
let mut _9: &mut std::slice::Iter<'_, i32>; // in scope 0 at $DIR/derefer_complex_case.rs:+1:17: +1:26
let mut _10: isize; // in scope 0 at $DIR/derefer_complex_case.rs:+1:5: +1:40
let mut _11: !; // in scope 0 at $DIR/derefer_complex_case.rs:+1:5: +1:40
let mut _13: i32; // in scope 0 at $DIR/derefer_complex_case.rs:+1:34: +1:37
@ -53,10 +53,10 @@
StorageLive(_9); // scope 1 at $DIR/derefer_complex_case.rs:+1:17: +1:26
_9 = &mut _4; // scope 1 at $DIR/derefer_complex_case.rs:+1:17: +1:26
_8 = &mut (*_9); // scope 1 at $DIR/derefer_complex_case.rs:+1:17: +1:26
_7 = <std::slice::Iter<i32> as Iterator>::next(move _8) -> bb3; // scope 1 at $DIR/derefer_complex_case.rs:+1:17: +1:26
_7 = <std::slice::Iter<'_, i32> as Iterator>::next(move _8) -> bb3; // scope 1 at $DIR/derefer_complex_case.rs:+1:17: +1:26
// mir::Constant
// + span: $DIR/derefer_complex_case.rs:6:17: 6:26
// + literal: Const { ty: for<'r> fn(&'r mut std::slice::Iter<i32>) -> Option<<std::slice::Iter<i32> as Iterator>::Item> {<std::slice::Iter<i32> as Iterator>::next}, val: Value(<ZST>) }
// + literal: Const { ty: for<'r> fn(&'r mut std::slice::Iter<'_, i32>) -> Option<<std::slice::Iter<'_, i32> as Iterator>::Item> {<std::slice::Iter<'_, i32> as Iterator>::next}, val: Value(<ZST>) }
}
bb3: {

6
src/test/mir-opt/early_otherwise_branch_soundness.no_downcast.EarlyOtherwiseBranch.diff
View File

@ -1,12 +1,12 @@
- // MIR for `no_downcast` before EarlyOtherwiseBranch
+ // MIR for `no_downcast` after EarlyOtherwiseBranch
fn no_downcast(_1: &E) -> u32 {
fn no_downcast(_1: &E<'_>) -> u32 {
debug e => _1; // in scope 0 at $DIR/early_otherwise_branch_soundness.rs:+0:16: +0:17
let mut _0: u32; // return place in scope 0 at $DIR/early_otherwise_branch_soundness.rs:+0:26: +0:29
let mut _2: isize; // in scope 0 at $DIR/early_otherwise_branch_soundness.rs:+1:20: +1:30
let mut _3: isize; // in scope 0 at $DIR/early_otherwise_branch_soundness.rs:+1:12: +1:31
let mut _4: &E; // in scope 0 at $DIR/early_otherwise_branch_soundness.rs:+0:16: +0:17
let mut _4: &E<'_>; // in scope 0 at $DIR/early_otherwise_branch_soundness.rs:+0:16: +0:17
scope 1 {
}
@ -16,7 +16,7 @@
}
bb1: {
_4 = deref_copy (((*_1) as Some).0: &E); // scope 1 at $DIR/early_otherwise_branch_soundness.rs:+1:12: +1:31
_4 = deref_copy (((*_1) as Some).0: &E<'_>); // scope 1 at $DIR/early_otherwise_branch_soundness.rs:+1:12: +1:31
_2 = discriminant((*_4)); // scope 1 at $DIR/early_otherwise_branch_soundness.rs:+1:12: +1:31
switchInt(move _2) -> [1_isize: bb2, otherwise: bb3]; // scope 1 at $DIR/early_otherwise_branch_soundness.rs:+1:12: +1:31
}

18
src/test/mir-opt/funky_arms.float_to_exponential_common.ConstProp.diff
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@ -1,24 +1,24 @@
- // MIR for `float_to_exponential_common` before ConstProp
+ // MIR for `float_to_exponential_common` after ConstProp
fn float_to_exponential_common(_1: &mut Formatter, _2: &T, _3: bool) -> Result<(), std::fmt::Error> {
fn float_to_exponential_common(_1: &mut Formatter<'_>, _2: &T, _3: bool) -> Result<(), std::fmt::Error> {
debug fmt => _1; // in scope 0 at $DIR/funky_arms.rs:+0:35: +0:38
debug num => _2; // in scope 0 at $DIR/funky_arms.rs:+0:60: +0:63
debug upper => _3; // in scope 0 at $DIR/funky_arms.rs:+0:69: +0:74
let mut _0: std::result::Result<(), std::fmt::Error>; // return place in scope 0 at $DIR/funky_arms.rs:+0:85: +0:91
let _4: bool; // in scope 0 at $DIR/funky_arms.rs:+4:9: +4:19
let mut _5: &std::fmt::Formatter; // in scope 0 at $DIR/funky_arms.rs:+4:22: +4:37
let mut _5: &std::fmt::Formatter<'_>; // in scope 0 at $DIR/funky_arms.rs:+4:22: +4:37
let mut _7: std::option::Option<usize>; // in scope 0 at $DIR/funky_arms.rs:+13:30: +13:45
let mut _8: &std::fmt::Formatter; // in scope 0 at $DIR/funky_arms.rs:+13:30: +13:45
let mut _8: &std::fmt::Formatter<'_>; // in scope 0 at $DIR/funky_arms.rs:+13:30: +13:45
let mut _9: isize; // in scope 0 at $DIR/funky_arms.rs:+13:12: +13:27
let mut _11: &mut std::fmt::Formatter; // in scope 0 at $DIR/funky_arms.rs:+15:43: +15:46
let mut _11: &mut std::fmt::Formatter<'_>; // in scope 0 at $DIR/funky_arms.rs:+15:43: +15:46
let mut _12: &T; // in scope 0 at $DIR/funky_arms.rs:+15:48: +15:51
let mut _13: core::num::flt2dec::Sign; // in scope 0 at $DIR/funky_arms.rs:+15:53: +15:57
let mut _14: u32; // in scope 0 at $DIR/funky_arms.rs:+15:59: +15:79
let mut _15: u32; // in scope 0 at $DIR/funky_arms.rs:+15:59: +15:75
let mut _16: usize; // in scope 0 at $DIR/funky_arms.rs:+15:59: +15:68
let mut _17: bool; // in scope 0 at $DIR/funky_arms.rs:+15:81: +15:86
let mut _18: &mut std::fmt::Formatter; // in scope 0 at $DIR/funky_arms.rs:+17:46: +17:49
let mut _18: &mut std::fmt::Formatter<'_>; // in scope 0 at $DIR/funky_arms.rs:+17:46: +17:49
let mut _19: &T; // in scope 0 at $DIR/funky_arms.rs:+17:51: +17:54
let mut _20: core::num::flt2dec::Sign; // in scope 0 at $DIR/funky_arms.rs:+17:56: +17:60
let mut _21: bool; // in scope 0 at $DIR/funky_arms.rs:+17:62: +17:67
@ -38,10 +38,10 @@
StorageLive(_4); // scope 0 at $DIR/funky_arms.rs:+4:9: +4:19
StorageLive(_5); // scope 0 at $DIR/funky_arms.rs:+4:22: +4:37
_5 = &(*_1); // scope 0 at $DIR/funky_arms.rs:+4:22: +4:37
_4 = Formatter::sign_plus(move _5) -> bb1; // scope 0 at $DIR/funky_arms.rs:+4:22: +4:37
_4 = Formatter::<'_>::sign_plus(move _5) -> bb1; // scope 0 at $DIR/funky_arms.rs:+4:22: +4:37
// mir::Constant
// + span: $DIR/funky_arms.rs:15:26: 15:35
// + literal: Const { ty: for<'r> fn(&'r Formatter) -> bool {Formatter::sign_plus}, val: Value(<ZST>) }
// + literal: Const { ty: for<'r> fn(&'r Formatter<'_>) -> bool {Formatter::<'_>::sign_plus}, val: Value(<ZST>) }
}
bb1: {
@ -66,10 +66,10 @@
StorageLive(_7); // scope 3 at $DIR/funky_arms.rs:+13:30: +13:45
StorageLive(_8); // scope 3 at $DIR/funky_arms.rs:+13:30: +13:45
_8 = &(*_1); // scope 3 at $DIR/funky_arms.rs:+13:30: +13:45
_7 = Formatter::precision(move _8) -> bb5; // scope 3 at $DIR/funky_arms.rs:+13:30: +13:45
_7 = Formatter::<'_>::precision(move _8) -> bb5; // scope 3 at $DIR/funky_arms.rs:+13:30: +13:45
// mir::Constant
// + span: $DIR/funky_arms.rs:24:34: 24:43
// + literal: Const { ty: for<'r> fn(&'r Formatter) -> Option<usize> {Formatter::precision}, val: Value(<ZST>) }
// + literal: Const { ty: for<'r> fn(&'r Formatter<'_>) -> Option<usize> {Formatter::<'_>::precision}, val: Value(<ZST>) }
}
bb5: {

2
src/test/mir-opt/issue_73223.main.SimplifyArmIdentity.diff
View File

@ -25,7 +25,7 @@
let _24: &i32; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
let mut _25: &i32; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
let _26: &i32; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
let mut _27: std::option::Option<std::fmt::Arguments>; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
let mut _27: std::option::Option<std::fmt::Arguments<'_>>; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
scope 1 {
debug split => _1; // in scope 1 at $DIR/issue-73223.rs:+1:9: +1:14
let _6: std::option::Option<i32>; // in scope 1 at $DIR/issue-73223.rs:+6:9: +6:14

8
src/test/mir-opt/issue_99325.main.mir_map.0.mir
View File

@ -26,7 +26,7 @@ fn main() -> () {
let _19: &&[u8]; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
let mut _20: &&[u8; 4]; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
let _21: &&[u8; 4]; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
let mut _22: std::option::Option<std::fmt::Arguments>; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
let mut _22: std::option::Option<std::fmt::Arguments<'_>>; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
let _23: (); // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
let mut _24: (&&[u8], &&[u8; 4]); // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
let mut _25: &&[u8]; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
@ -46,7 +46,7 @@ fn main() -> () {
let _40: &&[u8]; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
let mut _41: &&[u8; 4]; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
let _42: &&[u8; 4]; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
let mut _43: std::option::Option<std::fmt::Arguments>; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
let mut _43: std::option::Option<std::fmt::Arguments<'_>>; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
scope 1 {
debug left_val => _8; // in scope 1 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
debug right_val => _9; // in scope 1 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
@ -128,7 +128,7 @@ fn main() -> () {
_21 = &(*_9); // scope 2 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
_20 = &(*_21); // scope 2 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
StorageLive(_22); // scope 2 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
_22 = Option::<Arguments>::None; // scope 2 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
_22 = Option::<Arguments<'_>>::None; // scope 2 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
_16 = core::panicking::assert_failed::<&[u8], &[u8; 4]>(move _17, move _18, move _20, move _22) -> bb19; // scope 2 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
// mir::Constant
// + span: $SRC_DIR/core/src/macros/mod.rs:LL:COL
@ -237,7 +237,7 @@ fn main() -> () {
_42 = &(*_30); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
_41 = &(*_42); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
StorageLive(_43); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
_43 = Option::<Arguments>::None; // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
_43 = Option::<Arguments<'_>>::None; // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
_37 = core::panicking::assert_failed::<&[u8], &[u8; 4]>(move _38, move _39, move _41, move _43) -> bb19; // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
// mir::Constant
// + span: $SRC_DIR/core/src/macros/mod.rs:LL:COL

2
src/test/mir-opt/retag.array_casts.SimplifyCfg-elaborate-drops.after.mir
View File

@ -29,7 +29,7 @@ fn array_casts() -> () {
let _31: &usize; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
let mut _32: &usize; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
let _33: &usize; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
let mut _34: std::option::Option<std::fmt::Arguments>; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
let mut _34: std::option::Option<std::fmt::Arguments<'_>>; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
scope 1 {
debug x => _1; // in scope 1 at $DIR/retag.rs:+1:9: +1:14
let _2: *mut usize; // in scope 1 at $DIR/retag.rs:+2:9: +2:10

8
src/test/ui/const-generics/issues/issue-83765.stderr
View File

@ -1,16 +1,16 @@
error[E0391]: cycle detected when resolving instance `<LazyUpdim<T, { T::DIM }, DIM> as TensorDimension>::DIM`
error[E0391]: cycle detected when resolving instance `<LazyUpdim<'_, T, { T::DIM }, DIM> as TensorDimension>::DIM`
--> $DIR/issue-83765.rs:5:5
|
LL | const DIM: usize;
| ^^^^^^^^^^^^^^^^
|
note: ...which requires computing candidate for `<LazyUpdim<T, { T::DIM }, DIM> as TensorDimension>`...
note: ...which requires computing candidate for `<LazyUpdim<'_, T, { T::DIM }, DIM> as TensorDimension>`...
--> $DIR/issue-83765.rs:4:1
|
LL | trait TensorDimension {
| ^^^^^^^^^^^^^^^^^^^^^
= note: ...which again requires resolving instance `<LazyUpdim<T, { T::DIM }, DIM> as TensorDimension>::DIM`, completing the cycle
note: cycle used when computing candidate for `<LazyUpdim<T, { T::DIM }, DIM> as TensorDimension>`
= note: ...which again requires resolving instance `<LazyUpdim<'_, T, { T::DIM }, DIM> as TensorDimension>::DIM`, completing the cycle
note: cycle used when computing candidate for `<LazyUpdim<'_, T, { T::DIM }, DIM> as TensorDimension>`
--> $DIR/issue-83765.rs:4:1
|
LL | trait TensorDimension {

16
src/test/ui/const-ptr/forbidden_slices.64bit.stderr
View File

@ -5,7 +5,7 @@ LL | &*ptr::slice_from_raw_parts(data, len)
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
| |
| dereferencing pointer failed: null pointer is a dangling pointer (it has no provenance)
| inside `std::slice::from_raw_parts::<u32>` at $SRC_DIR/core/src/slice/raw.rs:LL:COL
| inside `std::slice::from_raw_parts::<'_, u32>` at $SRC_DIR/core/src/slice/raw.rs:LL:COL
|
::: $DIR/forbidden_slices.rs:18:34
|
@ -19,7 +19,7 @@ LL | &*ptr::slice_from_raw_parts(data, len)
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
| |
| dereferencing pointer failed: null pointer is a dangling pointer (it has no provenance)
| inside `std::slice::from_raw_parts::<()>` at $SRC_DIR/core/src/slice/raw.rs:LL:COL
| inside `std::slice::from_raw_parts::<'_, ()>` at $SRC_DIR/core/src/slice/raw.rs:LL:COL
|
::: $DIR/forbidden_slices.rs:19:33
|
@ -33,7 +33,7 @@ LL | &*ptr::slice_from_raw_parts(data, len)
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
| |
| dereferencing pointer failed: ALLOC_ID has size 4, so pointer to 8 bytes starting at offset 0 is out-of-bounds
| inside `std::slice::from_raw_parts::<u32>` at $SRC_DIR/core/src/slice/raw.rs:LL:COL
| inside `std::slice::from_raw_parts::<'_, u32>` at $SRC_DIR/core/src/slice/raw.rs:LL:COL
|
::: $DIR/forbidden_slices.rs:22:34
|
@ -92,7 +92,7 @@ LL | &*ptr::slice_from_raw_parts(data, len)
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
| |
| dereferencing pointer failed: ALLOC_ID has size 8, so pointer to 8 bytes starting at offset 1 is out-of-bounds
| inside `std::slice::from_raw_parts::<u64>` at $SRC_DIR/core/src/slice/raw.rs:LL:COL
| inside `std::slice::from_raw_parts::<'_, u64>` at $SRC_DIR/core/src/slice/raw.rs:LL:COL
|
::: $DIR/forbidden_slices.rs:43:5
|
@ -111,7 +111,7 @@ LL | unsafe { intrinsics::ptr_offset_from_unsigned(self, origin) }
::: $SRC_DIR/core/src/slice/raw.rs:LL:COL
|
LL | unsafe { from_raw_parts(range.start, range.end.sub_ptr(range.start)) }
| ------------------------------ inside `from_ptr_range::<u32>` at $SRC_DIR/core/src/slice/raw.rs:LL:COL
| ------------------------------ inside `from_ptr_range::<'_, u32>` at $SRC_DIR/core/src/slice/raw.rs:LL:COL
|
::: $DIR/forbidden_slices.rs:46:34
|
@ -130,7 +130,7 @@ LL | assert!(0 < pointee_size && pointee_size <= isize::MAX as usize);
::: $SRC_DIR/core/src/slice/raw.rs:LL:COL
|
LL | unsafe { from_raw_parts(range.start, range.end.sub_ptr(range.start)) }
| ------------------------------ inside `from_ptr_range::<()>` at $SRC_DIR/core/src/slice/raw.rs:LL:COL
| ------------------------------ inside `from_ptr_range::<'_, ()>` at $SRC_DIR/core/src/slice/raw.rs:LL:COL
|
::: $DIR/forbidden_slices.rs:47:33
|
@ -230,7 +230,7 @@ LL | unsafe { intrinsics::ptr_offset_from_unsigned(self, origin) }
::: $SRC_DIR/core/src/slice/raw.rs:LL:COL
|
LL | unsafe { from_raw_parts(range.start, range.end.sub_ptr(range.start)) }
| ------------------------------ inside `from_ptr_range::<u32>` at $SRC_DIR/core/src/slice/raw.rs:LL:COL
| ------------------------------ inside `from_ptr_range::<'_, u32>` at $SRC_DIR/core/src/slice/raw.rs:LL:COL
|
::: $DIR/forbidden_slices.rs:79:34
|
@ -249,7 +249,7 @@ LL | unsafe { intrinsics::ptr_offset_from_unsigned(self, origin) }
::: $SRC_DIR/core/src/slice/raw.rs:LL:COL
|
LL | unsafe { from_raw_parts(range.start, range.end.sub_ptr(range.start)) }
| ------------------------------ inside `from_ptr_range::<u32>` at $SRC_DIR/core/src/slice/raw.rs:LL:COL
| ------------------------------ inside `from_ptr_range::<'_, u32>` at $SRC_DIR/core/src/slice/raw.rs:LL:COL
|
::: $DIR/forbidden_slices.rs:80:35
|

4
src/test/ui/issues/issue-21174.stderr
View File

@ -4,8 +4,8 @@ error[E0512]: cannot transmute between types of different sizes, or dependently-
LL | let new: T::B = unsafe { std::mem::transmute(value) };
| ^^^^^^^^^^^^^^^^^^^
|
= note: source type: `<T as Trait>::A` (this type does not have a fixed size)
= note: target type: `<T as Trait>::B` (this type does not have a fixed size)
= note: source type: `<T as Trait<'_>>::A` (this type does not have a fixed size)
= note: target type: `<T as Trait<'_>>::B` (this type does not have a fixed size)
error: aborting due to previous error

2
src/test/ui/polymorphization/predicates.stderr
View File

@ -41,7 +41,7 @@ error: item has unused generic parameters
LL | fn bar<I>() {
| ^^^ - generic parameter `I` is unused
note: the above error was encountered while instantiating `fn foo::<std::slice::Iter<u32>, T>`
note: the above error was encountered while instantiating `fn foo::<std::slice::Iter<'_, u32>, T>`
--> $DIR/predicates.rs:86:5
|
LL | foo(x.iter());

4
src/test/ui/recursion/recursive-types-are-not-uninhabited.stderr
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@ -6,7 +6,7 @@ LL | let Ok(x) = res;
|
= note: `let` bindings require an "irrefutable pattern", like a `struct` or an `enum` with only one variant
= note: for more information, visit https://doc.rust-lang.org/book/ch18-02-refutability.html
note: `Result<u32, &R>` defined here
note: `Result<u32, &R<'_>>` defined here
--> $SRC_DIR/core/src/result.rs:LL:COL
|
LL | pub enum Result<T, E> {
@ -14,7 +14,7 @@ LL | pub enum Result<T, E> {
...
LL | Err(#[stable(feature = "rust1", since = "1.0.0")] E),
| ^^^ not covered
= note: the matched value is of type `Result<u32, &R>`
= note: the matched value is of type `Result<u32, &R<'_>>`
help: you might want to use `if let` to ignore the variant that isn't matched
|
LL | let x = if let Ok(x) = res { x } else { todo!() };

2
src/test/ui/specialization/issue-38091-2.stderr
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@ -10,7 +10,7 @@ LL | #![feature(specialization)]
error[E0275]: overflow evaluating the requirement `i32: Check`
|
note: required for `i32` to implement `Iterate`
note: required for `i32` to implement `Iterate<'_>`
--> $DIR/issue-38091-2.rs:11:13
|
LL | impl<'a, T> Iterate<'a> for T

2
src/test/ui/transmute/main.stderr
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@ -4,7 +4,7 @@ error[E0512]: cannot transmute between types of different sizes, or dependently-
LL | transmute(x)
| ^^^^^^^^^
|
= note: `<C as TypeConstructor>::T` does not have a fixed size
= note: `<C as TypeConstructor<'_>>::T` does not have a fixed size
error[E0512]: cannot transmute between types of different sizes, or dependently-sized types
--> $DIR/main.rs:17:17