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Auto merge of #114264 - matthiaskrgr:rollup-dfsuu1v, r=matthiaskrgr

Browse Source 
Rollup of 6 pull requests

Successful merges:

 - #98154 (merge functionality of `io::Sink` into `io::Empty`)
 - #102198 (`const`-stablilize `NonNull::as_ref`)
 - #114074 (inline format!() args from rustc_middle up to and including rustc_codegen_llvm (3))
 - #114246 (Weaken unnameable_types lint)
 - #114256 (Fix invalid suggestion for mismatched types in closure arguments)
 - #114258 (Simplify `Span::can_be_used_for_suggestions` a little tiny bit)

r? `@ghost`
`@rustbot` modify labels: rollup
This commit is contained in:
bors 2023-07-30 19:53:37 +00:00
commit a17c7968b7
89 changed files with 614 additions and 560 deletions
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2
compiler/rustc_codegen_llvm/src/attributes.rs
View File

@ -444,7 +444,7 @@ pub fn from_fn_attrs<'ll, 'tcx>(
let mut function_features = function_features
.iter()
.flat_map(|feat| {
llvm_util::to_llvm_features(cx.tcx.sess, feat).into_iter().map(|f| format!("+{}", f))
llvm_util::to_llvm_features(cx.tcx.sess, feat).into_iter().map(|f| format!("+{f}"))
})
.chain(codegen_fn_attrs.instruction_set.iter().map(|x| match x {
InstructionSetAttr::ArmA32 => "-thumb-mode".to_string(),

10
compiler/rustc_codegen_llvm/src/back/archive.rs
View File

@ -56,7 +56,7 @@ fn llvm_machine_type(cpu: &str) -> LLVMMachineType {
"x86" => LLVMMachineType::I386,
"aarch64" => LLVMMachineType::ARM64,
"arm" => LLVMMachineType::ARM,
_ => panic!("unsupported cpu type {}", cpu),
_ => panic!("unsupported cpu type {cpu}"),
}
}
@ -128,7 +128,7 @@ impl ArchiveBuilderBuilder for LlvmArchiveBuilderBuilder {
let name_suffix = if is_direct_dependency { "_imports" } else { "_imports_indirect" };
let output_path = {
let mut output_path: PathBuf = tmpdir.to_path_buf();
output_path.push(format!("{}{}", lib_name, name_suffix));
output_path.push(format!("{lib_name}{name_suffix}"));
output_path.with_extension("lib")
};
@ -156,7 +156,7 @@ impl ArchiveBuilderBuilder for LlvmArchiveBuilderBuilder {
// functions. Therefore, use binutils to create the import library instead,
// by writing a .DEF file to the temp dir and calling binutils's dlltool.
let def_file_path =
tmpdir.join(format!("{}{}", lib_name, name_suffix)).with_extension("def");
tmpdir.join(format!("{lib_name}{name_suffix}")).with_extension("def");
let def_file_content = format!(
"EXPORTS\n{}",
@ -164,7 +164,7 @@ impl ArchiveBuilderBuilder for LlvmArchiveBuilderBuilder {
.into_iter()
.map(|(name, ordinal)| {
match ordinal {
Some(n) => format!("{} @{} NONAME", name, n),
Some(n) => format!("{name} @{n} NONAME"),
None => name,
}
})
@ -435,7 +435,7 @@ impl<'a> LlvmArchiveBuilder<'a> {
}
fn string_to_io_error(s: String) -> io::Error {
io::Error::new(io::ErrorKind::Other, format!("bad archive: {}", s))
io::Error::new(io::ErrorKind::Other, format!("bad archive: {s}"))
}
fn find_binutils_dlltool(sess: &Session) -> OsString {

6
compiler/rustc_codegen_llvm/src/back/lto.rs
View File

@ -332,7 +332,7 @@ fn fat_lto(
let _timer = cgcx
.prof
.generic_activity_with_arg_recorder("LLVM_fat_lto_link_module", |recorder| {
recorder.record_arg(format!("{:?}", name))
recorder.record_arg(format!("{name:?}"))
});
info!("linking {:?}", name);
let data = bc_decoded.data();
@ -787,7 +787,7 @@ impl ThinLTOKeysMap {
let file = File::create(path)?;
let mut writer = io::BufWriter::new(file);
for (module, key) in &self.keys {
writeln!(writer, "{} {}", module, key)?;
writeln!(writer, "{module} {key}")?;
}
Ok(())
}
@ -801,7 +801,7 @@ impl ThinLTOKeysMap {
let mut split = line.split(' ');
let module = split.next().unwrap();
let key = split.next().unwrap();
assert_eq!(split.next(), None, "Expected two space-separated values, found {:?}", line);
assert_eq!(split.next(), None, "Expected two space-separated values, found {line:?}");
keys.insert(module.to_string(), key.to_string());
}
Ok(Self { keys })

6
compiler/rustc_codegen_llvm/src/back/write.rs
View File

@ -259,7 +259,7 @@ pub(crate) fn save_temp_bitcode(
return;
}
unsafe {
let ext = format!("{}.bc", name);
let ext = format!("{name}.bc");
let cgu = Some(&module.name[..]);
let path = cgcx.output_filenames.temp_path_ext(&ext, cgu);
let cstr = path_to_c_string(&path);
@ -713,7 +713,7 @@ pub(crate) unsafe fn codegen(
let Ok(demangled) = rustc_demangle::try_demangle(input) else { return 0 };
if write!(cursor, "{:#}", demangled).is_err() {
if write!(cursor, "{demangled:#}").is_err() {
// Possible only if provided buffer is not big enough
return 0;
}
@ -834,7 +834,7 @@ pub(crate) unsafe fn codegen(
}
fn create_section_with_flags_asm(section_name: &str, section_flags: &str, data: &[u8]) -> Vec<u8> {
let mut asm = format!(".section {},\"{}\"\n", section_name, section_flags).into_bytes();
let mut asm = format!(".section {section_name},\"{section_flags}\"\n").into_bytes();
asm.extend_from_slice(b".ascii \"");
asm.reserve(data.len());
for &byte in data {

11
compiler/rustc_codegen_llvm/src/builder.rs
View File

@ -1415,9 +1415,7 @@ impl<'a, 'll, 'tcx> Builder<'a, 'll, 'tcx> {
) -> Cow<'b, [&'ll Value]> {
assert!(
self.cx.type_kind(fn_ty) == TypeKind::Function,
"builder::{} not passed a function, but {:?}",
typ,
fn_ty
"builder::{typ} not passed a function, but {fn_ty:?}"
);
let param_tys = self.cx.func_params_types(fn_ty);
@ -1509,12 +1507,9 @@ impl<'a, 'll, 'tcx> Builder<'a, 'll, 'tcx> {
let instr = if signed { "fptosi" } else { "fptoui" };
let name = if let Some(vector_length) = vector_length {
format!(
"llvm.{}.sat.v{}i{}.v{}f{}",
instr, vector_length, int_width, vector_length, float_width
)
format!("llvm.{instr}.sat.v{vector_length}i{int_width}.v{vector_length}f{float_width}")
} else {
format!("llvm.{}.sat.i{}.f{}", instr, int_width, float_width)
format!("llvm.{instr}.sat.i{int_width}.f{float_width}")
};
let f = self.declare_cfn(&name, llvm::UnnamedAddr::No, self.type_func(&[src_ty], dest_ty));
self.call(self.type_func(&[src_ty], dest_ty), None, None, f, &[val], None)

4
compiler/rustc_codegen_llvm/src/common.rs
View File

@ -420,10 +420,10 @@ pub(crate) fn i686_decorated_name(
DllCallingConvention::C => {}
DllCallingConvention::Stdcall(arg_list_size)
| DllCallingConvention::Fastcall(arg_list_size) => {
write!(&mut decorated_name, "@{}", arg_list_size).unwrap();
write!(&mut decorated_name, "@{arg_list_size}").unwrap();
}
DllCallingConvention::Vectorcall(arg_list_size) => {
write!(&mut decorated_name, "@@{}", arg_list_size).unwrap();
write!(&mut decorated_name, "@@{arg_list_size}").unwrap();
}
}
}

3
compiler/rustc_codegen_llvm/src/consts.rs
View File

@ -238,8 +238,7 @@ impl<'ll> CodegenCx<'ll, '_> {
assert!(
!defined_in_current_codegen_unit,
"consts::get_static() should always hit the cache for \
statics defined in the same CGU, but did not for `{:?}`",
def_id
statics defined in the same CGU, but did not for `{def_id:?}`"
);
let ty = instance.ty(self.tcx, ty::ParamEnv::reveal_all());

2
compiler/rustc_codegen_llvm/src/debuginfo/gdb.rs
View File

@ -54,7 +54,7 @@ pub fn get_or_insert_gdb_debug_scripts_section_global<'ll>(cx: &CodegenCx<'ll, '
// The initial byte `4` instructs GDB that the following pretty printer
// is defined inline as opposed to in a standalone file.
section_contents.extend_from_slice(b"\x04");
let vis_name = format!("pretty-printer-{}-{}\n", crate_name, index);
let vis_name = format!("pretty-printer-{crate_name}-{index}\n");
section_contents.extend_from_slice(vis_name.as_bytes());
section_contents.extend_from_slice(&visualizer.src);

16
compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs
View File

@ -184,9 +184,7 @@ fn build_pointer_or_reference_di_node<'ll, 'tcx>(
debug_assert_eq!(
(data_layout.pointer_size, data_layout.pointer_align.abi),
cx.size_and_align_of(ptr_type),
"ptr_type={}, pointee_type={}",
ptr_type,
pointee_type,
"ptr_type={ptr_type}, pointee_type={pointee_type}",
);
let di_node = unsafe {
@ -521,7 +519,7 @@ fn recursion_marker_type_di_node<'ll, 'tcx>(cx: &CodegenCx<'ll, 'tcx>) -> &'ll D
fn hex_encode(data: &[u8]) -> String {
let mut hex_string = String::with_capacity(data.len() * 2);
for byte in data.iter() {
write!(&mut hex_string, "{:02x}", byte).unwrap();
write!(&mut hex_string, "{byte:02x}").unwrap();
}
hex_string
}
@ -766,7 +764,7 @@ fn build_param_type_di_node<'ll, 'tcx>(
t: Ty<'tcx>,
) -> DINodeCreationResult<'ll> {
debug!("build_param_type_di_node: {:?}", t);
let name = format!("{:?}", t);
let name = format!("{t:?}");
DINodeCreationResult {
di_node: unsafe {
llvm::LLVMRustDIBuilderCreateBasicType(
@ -814,7 +812,7 @@ pub fn build_compile_unit_di_node<'ll, 'tcx>(
debug!("build_compile_unit_di_node: {:?}", name_in_debuginfo);
let rustc_producer = format!("rustc version {}", tcx.sess.cfg_version);
// FIXME(#41252) Remove "clang LLVM" if we can get GDB and LLVM to play nice.
let producer = format!("clang LLVM ({})", rustc_producer);
let producer = format!("clang LLVM ({rustc_producer})");
let name_in_debuginfo = name_in_debuginfo.to_string_lossy();
let work_dir = tcx.sess.opts.working_dir.to_string_lossy(FileNameDisplayPreference::Remapped);
@ -1331,10 +1329,10 @@ fn build_vtable_type_di_node<'ll, 'tcx>(
// Note: This code does not try to give a proper name to each method
// because their might be multiple methods with the same name
// (coming from different traits).
(format!("__method{}", index), void_pointer_type_di_node)
(format!("__method{index}"), void_pointer_type_di_node)
}
ty::VtblEntry::TraitVPtr(_) => {
(format!("__super_trait_ptr{}", index), void_pointer_type_di_node)
(format!("__super_trait_ptr{index}"), void_pointer_type_di_node)
}
ty::VtblEntry::MetadataAlign => ("align".to_string(), usize_di_node),
ty::VtblEntry::MetadataSize => ("size".to_string(), usize_di_node),
@ -1504,5 +1502,5 @@ pub fn tuple_field_name(field_index: usize) -> Cow<'static, str> {
TUPLE_FIELD_NAMES
.get(field_index)
.map(|s| Cow::from(*s))
.unwrap_or_else(|| Cow::from(format!("__{}", field_index)))
.unwrap_or_else(|| Cow::from(format!("__{field_index}")))
}

3
compiler/rustc_codegen_llvm/src/debuginfo/utils.rs
View File

@ -91,8 +91,7 @@ pub(crate) fn fat_pointer_kind<'ll, 'tcx>(
// For all other pointee types we should already have returned None
// at the beginning of the function.
panic!(
"fat_pointer_kind() - Encountered unexpected `pointee_tail_ty`: {:?}",
pointee_tail_ty
"fat_pointer_kind() - Encountered unexpected `pointee_tail_ty`: {pointee_tail_ty:?}"
)
}
}

18
compiler/rustc_codegen_llvm/src/intrinsic.rs
View File

@ -230,22 +230,22 @@ impl<'ll, 'tcx> IntrinsicCallMethods<'tcx> for Builder<'_, 'll, 'tcx> {
sym::ctlz | sym::cttz => {
let y = self.const_bool(false);
self.call_intrinsic(
&format!("llvm.{}.i{}", name, width),
&format!("llvm.{name}.i{width}"),
&[args[0].immediate(), y],
)
}
sym::ctlz_nonzero => {
let y = self.const_bool(true);
let llvm_name = &format!("llvm.ctlz.i{}", width);
let llvm_name = &format!("llvm.ctlz.i{width}");
self.call_intrinsic(llvm_name, &[args[0].immediate(), y])
}
sym::cttz_nonzero => {
let y = self.const_bool(true);
let llvm_name = &format!("llvm.cttz.i{}", width);
let llvm_name = &format!("llvm.cttz.i{width}");
self.call_intrinsic(llvm_name, &[args[0].immediate(), y])
}
sym::ctpop => self.call_intrinsic(
&format!("llvm.ctpop.i{}", width),
&format!("llvm.ctpop.i{width}"),
&[args[0].immediate()],
),
sym::bswap => {
@ -253,13 +253,13 @@ impl<'ll, 'tcx> IntrinsicCallMethods<'tcx> for Builder<'_, 'll, 'tcx> {
args[0].immediate() // byte swap a u8/i8 is just a no-op
} else {
self.call_intrinsic(
&format!("llvm.bswap.i{}", width),
&format!("llvm.bswap.i{width}"),
&[args[0].immediate()],
)
}
}
sym::bitreverse => self.call_intrinsic(
&format!("llvm.bitreverse.i{}", width),
&format!("llvm.bitreverse.i{width}"),
&[args[0].immediate()],
),
sym::rotate_left | sym::rotate_right => {
@ -1283,7 +1283,7 @@ fn generic_simd_intrinsic<'ll, 'tcx>(
sym::simd_trunc => ("trunc", bx.type_func(&[vec_ty], vec_ty)),
_ => return_error!(InvalidMonomorphization::UnrecognizedIntrinsic { span, name }),
};
let llvm_name = &format!("llvm.{0}.v{1}{2}", intr_name, in_len, elem_ty_str);
let llvm_name = &format!("llvm.{intr_name}.v{in_len}{elem_ty_str}");
let f = bx.declare_cfn(llvm_name, llvm::UnnamedAddr::No, fn_ty);
let c = bx.call(
fn_ty,
@ -1498,7 +1498,7 @@ fn generic_simd_intrinsic<'ll, 'tcx>(
let llvm_elem_vec_str = llvm_vector_str(underlying_ty, in_len, pointer_count - 1, bx);
let llvm_intrinsic =
format!("llvm.masked.gather.{}.{}", llvm_elem_vec_str, llvm_pointer_vec_str);
format!("llvm.masked.gather.{llvm_elem_vec_str}.{llvm_pointer_vec_str}");
let fn_ty = bx.type_func(
&[llvm_pointer_vec_ty, alignment_ty, mask_ty, llvm_elem_vec_ty],
llvm_elem_vec_ty,
@ -1642,7 +1642,7 @@ fn generic_simd_intrinsic<'ll, 'tcx>(
let llvm_elem_vec_str = llvm_vector_str(underlying_ty, in_len, pointer_count - 1, bx);
let llvm_intrinsic =
format!("llvm.masked.scatter.{}.{}", llvm_elem_vec_str, llvm_pointer_vec_str);
format!("llvm.masked.scatter.{llvm_elem_vec_str}.{llvm_pointer_vec_str}");
let fn_ty =
bx.type_func(&[llvm_elem_vec_ty, llvm_pointer_vec_ty, alignment_ty, mask_ty], ret_t);
let f = bx.declare_cfn(&llvm_intrinsic, llvm::UnnamedAddr::No, fn_ty);

6
compiler/rustc_codegen_llvm/src/lib.rs
View File

@ -298,21 +298,21 @@ impl CodegenBackend for LlvmCodegenBackend {
"ropi-rwpi",
"default",
] {
writeln!(out, " {}", name);
writeln!(out, " {name}");
}
writeln!(out);
}
PrintKind::CodeModels => {
writeln!(out, "Available code models:");
for name in &["tiny", "small", "kernel", "medium", "large"] {
writeln!(out, " {}", name);
writeln!(out, " {name}");
}
writeln!(out);
}
PrintKind::TlsModels => {
writeln!(out, "Available TLS models:");
for name in &["global-dynamic", "local-dynamic", "initial-exec", "local-exec"] {
writeln!(out, " {}", name);
writeln!(out, " {name}");
}
writeln!(out);
}

8
compiler/rustc_codegen_llvm/src/llvm_util.rs
View File

@ -315,7 +315,7 @@ pub fn target_features(sess: &Session, allow_unstable: bool) -> Vec<Symbol> {
pub fn print_version() {
let (major, minor, patch) = get_version();
println!("LLVM version: {}.{}.{}", major, minor, patch);
println!("LLVM version: {major}.{minor}.{patch}");
}
pub fn get_version() -> (u32, u32, u32) {
@ -390,11 +390,11 @@ fn print_target_features(out: &mut dyn PrintBackendInfo, sess: &Session, tm: &ll
writeln!(out, "Features supported by rustc for this target:");
for (feature, desc) in &rustc_target_features {
writeln!(out, " {1:0$} - {2}.", max_feature_len, feature, desc);
writeln!(out, " {feature:max_feature_len$} - {desc}.");
}
writeln!(out, "\nCode-generation features supported by LLVM for this target:");
for (feature, desc) in &llvm_target_features {
writeln!(out, " {1:0$} - {2}.", max_feature_len, feature, desc);
writeln!(out, " {feature:max_feature_len$} - {desc}.");
}
if llvm_target_features.is_empty() {
writeln!(out, " Target features listing is not supported by this LLVM version.");
@ -573,7 +573,7 @@ pub(crate) fn global_llvm_features(sess: &Session, diagnostics: bool) -> Vec<Str
match (enable_disable, feat) {
('-' | '+', TargetFeatureFoldStrength::Both(f))
| ('+', TargetFeatureFoldStrength::EnableOnly(f)) => {
Some(format!("{}{}", enable_disable, f))
Some(format!("{enable_disable}{f}"))
}
_ => None,
}

29
compiler/rustc_codegen_ssa/src/back/link.rs
View File

@ -748,7 +748,7 @@ fn link_natively<'a>(
for print in &sess.opts.prints {
if print.kind == PrintKind::LinkArgs {
let content = format!("{:?}", cmd);
let content = format!("{cmd:?}");
print.out.overwrite(&content, sess);
}
}
@ -1236,22 +1236,21 @@ fn link_sanitizer_runtime(sess: &Session, linker: &mut dyn Linker, name: &str) {
}
}
let channel = option_env!("CFG_RELEASE_CHANNEL")
.map(|channel| format!("-{}", channel))
.unwrap_or_default();
let channel =
option_env!("CFG_RELEASE_CHANNEL").map(|channel| format!("-{channel}")).unwrap_or_default();
if sess.target.is_like_osx {
// On Apple platforms, the sanitizer is always built as a dylib, and
// LLVM will link to `@rpath/*.dylib`, so we need to specify an
// rpath to the library as well (the rpath should be absolute, see
// PR #41352 for details).
let filename = format!("rustc{}_rt.{}", channel, name);
let filename = format!("rustc{channel}_rt.{name}");
let path = find_sanitizer_runtime(&sess, &filename);
let rpath = path.to_str().expect("non-utf8 component in path");
linker.args(&["-Wl,-rpath", "-Xlinker", rpath]);
linker.link_dylib(&filename, false, true);
} else {
let filename = format!("librustc{}_rt.{}.a", channel, name);
let filename = format!("librustc{channel}_rt.{name}.a");
let path = find_sanitizer_runtime(&sess, &filename).join(&filename);
linker.link_whole_rlib(&path);
}
@ -1415,12 +1414,12 @@ fn print_native_static_libs(
} else if sess.target.linker_flavor.is_gnu() {
Some(format!("-l{}{}", if verbatim { ":" } else { "" }, name))
} else {
Some(format!("-l{}", name))
Some(format!("-l{name}"))
}
}
NativeLibKind::Framework { .. } => {
// ld-only syntax, since there are no frameworks in MSVC
Some(format!("-framework {}", name))
Some(format!("-framework {name}"))
}
// These are included, no need to print them
NativeLibKind::Static { bundle: None | Some(true), .. }
@ -1457,12 +1456,12 @@ fn print_native_static_libs(
// `foo.lib` file if the dll doesn't actually export any symbols, so we
// check to see if the file is there and just omit linking to it if it's
// not present.
let name = format!("{}.dll.lib", lib);
let name = format!("{lib}.dll.lib");
if path.join(&name).exists() {
lib_args.push(name);
}
} else {
lib_args.push(format!("-l{}", lib));
lib_args.push(format!("-l{lib}"));
}
}
@ -1628,8 +1627,8 @@ fn exec_linker(
write!(f, "\"")?;
for c in self.arg.chars() {
match c {
'"' => write!(f, "\\{}", c)?,
c => write!(f, "{}", c)?,
'"' => write!(f, "\\{c}")?,
c => write!(f, "{c}")?,
}
}
write!(f, "\"")?;
@ -1646,8 +1645,8 @@ fn exec_linker(
// ensure the line is interpreted as one whole argument.
for c in self.arg.chars() {
match c {
'\\' | ' ' => write!(f, "\\{}", c)?,
c => write!(f, "{}", c)?,
'\\' | ' ' => write!(f, "\\{c}")?,
c => write!(f, "{c}")?,
}
}
}
@ -2284,7 +2283,7 @@ fn add_order_independent_options(
} else {
""
};
cmd.arg(format!("--dynamic-linker={}ld.so.1", prefix));
cmd.arg(format!("--dynamic-linker={prefix}ld.so.1"));
}
if sess.target.eh_frame_header {

46
compiler/rustc_codegen_ssa/src/back/linker.rs
View File

@ -309,7 +309,7 @@ impl<'a> GccLinker<'a> {
self.linker_arg(&format!("-plugin-opt=sample-profile={}", path.display()));
};
self.linker_args(&[
&format!("-plugin-opt={}", opt_level),
&format!("-plugin-opt={opt_level}"),
&format!("-plugin-opt=mcpu={}", self.target_cpu),
]);
}
@ -487,7 +487,7 @@ impl<'a> Linker for GccLinker<'a> {
fn link_rust_dylib(&mut self, lib: &str, _path: &Path) {
self.hint_dynamic();
self.cmd.arg(format!("-l{}", lib));
self.cmd.arg(format!("-l{lib}"));
}
fn link_framework(&mut self, framework: &str, as_needed: bool) {
@ -671,8 +671,8 @@ impl<'a> Linker for GccLinker<'a> {
let res: io::Result<()> = try {
let mut f = BufWriter::new(File::create(&path)?);
for sym in symbols {
debug!(" _{}", sym);
writeln!(f, "_{}", sym)?;
debug!(" _{sym}");
writeln!(f, "_{sym}")?;
}
};
if let Err(error) = res {
@ -686,8 +686,8 @@ impl<'a> Linker for GccLinker<'a> {
// because LD doesn't like when it's empty
writeln!(f, "EXPORTS")?;
for symbol in symbols {
debug!(" _{}", symbol);
writeln!(f, " {}", symbol)?;
debug!(" _{symbol}");
writeln!(f, " {symbol}")?;
}
};
if let Err(error) = res {
@ -701,8 +701,8 @@ impl<'a> Linker for GccLinker<'a> {
if !symbols.is_empty() {
writeln!(f, " global:")?;
for sym in symbols {
debug!(" {};", sym);
writeln!(f, " {};", sym)?;
debug!(" {sym};");
writeln!(f, " {sym};")?;
}
}
writeln!(f, "\n local:\n *;\n}};")?;
@ -837,7 +837,7 @@ impl<'a> Linker for MsvcLinker<'a> {
// `foo.lib` file if the dll doesn't actually export any symbols, so we
// check to see if the file is there and just omit linking to it if it's
// not present.
let name = format!("{}.dll.lib", lib);
let name = format!("{lib}.dll.lib");
if path.join(&name).exists() {
self.cmd.arg(name);
}
@ -977,8 +977,8 @@ impl<'a> Linker for MsvcLinker<'a> {
writeln!(f, "LIBRARY")?;
writeln!(f, "EXPORTS")?;
for symbol in symbols {
debug!(" _{}", symbol);
writeln!(f, " {}", symbol)?;
debug!(" _{symbol}");
writeln!(f, " {symbol}")?;
}
};
if let Err(error) = res {
@ -992,7 +992,7 @@ impl<'a> Linker for MsvcLinker<'a> {
fn subsystem(&mut self, subsystem: &str) {
// Note that previous passes of the compiler validated this subsystem,
// so we just blindly pass it to the linker.
self.cmd.arg(&format!("/SUBSYSTEM:{}", subsystem));
self.cmd.arg(&format!("/SUBSYSTEM:{subsystem}"));
// Windows has two subsystems we're interested in right now, the console
// and windows subsystems. These both implicitly have different entry
@ -1147,7 +1147,7 @@ impl<'a> Linker for EmLinker<'a> {
&symbols.iter().map(|sym| "_".to_owned() + sym).collect::<Vec<_>>(),
)
.unwrap();
debug!("{}", encoded);
debug!("{encoded}");
arg.push(encoded);
@ -1350,7 +1350,7 @@ impl<'a> Linker for L4Bender<'a> {
}
fn link_staticlib(&mut self, lib: &str, _verbatim: bool) {
self.hint_static();
self.cmd.arg(format!("-PC{}", lib));
self.cmd.arg(format!("-PC{lib}"));
}
fn link_rlib(&mut self, lib: &Path) {
self.hint_static();
@ -1399,7 +1399,7 @@ impl<'a> Linker for L4Bender<'a> {
fn link_whole_staticlib(&mut self, lib: &str, _verbatim: bool, _search_path: &[PathBuf]) {
self.hint_static();
self.cmd.arg("--whole-archive").arg(format!("-l{}", lib));
self.cmd.arg("--whole-archive").arg(format!("-l{lib}"));
self.cmd.arg("--no-whole-archive");
}
@ -1453,7 +1453,7 @@ impl<'a> Linker for L4Bender<'a> {
}
fn subsystem(&mut self, subsystem: &str) {
self.cmd.arg(&format!("--subsystem {}", subsystem));
self.cmd.arg(&format!("--subsystem {subsystem}"));
}
fn reset_per_library_state(&mut self) {
@ -1518,12 +1518,12 @@ impl<'a> AixLinker<'a> {
impl<'a> Linker for AixLinker<'a> {
fn link_dylib(&mut self, lib: &str, _verbatim: bool, _as_needed: bool) {
self.hint_dynamic();
self.cmd.arg(format!("-l{}", lib));
self.cmd.arg(format!("-l{lib}"));
}
fn link_staticlib(&mut self, lib: &str, _verbatim: bool) {
self.hint_static();
self.cmd.arg(format!("-l{}", lib));
self.cmd.arg(format!("-l{lib}"));
}
fn link_rlib(&mut self, lib: &Path) {
@ -1573,7 +1573,7 @@ impl<'a> Linker for AixLinker<'a> {
fn link_rust_dylib(&mut self, lib: &str, _: &Path) {
self.hint_dynamic();
self.cmd.arg(format!("-l{}", lib));
self.cmd.arg(format!("-l{lib}"));
}
fn link_framework(&mut self, _framework: &str, _as_needed: bool) {
@ -1626,12 +1626,12 @@ impl<'a> Linker for AixLinker<'a> {
let mut f = BufWriter::new(File::create(&path)?);
// FIXME: use llvm-nm to generate export list.
for symbol in symbols {
debug!(" _{}", symbol);
writeln!(f, " {}", symbol)?;
debug!(" _{symbol}");
writeln!(f, " {symbol}")?;
}
};
if let Err(e) = res {
self.sess.fatal(format!("failed to write export file: {}", e));
self.sess.fatal(format!("failed to write export file: {e}"));
}
self.cmd.arg(format!("-bE:{}", path.to_str().unwrap()));
}
@ -1908,7 +1908,7 @@ impl<'a> Linker for BpfLinker<'a> {
let res: io::Result<()> = try {
let mut f = BufWriter::new(File::create(&path)?);
for sym in symbols {
writeln!(f, "{}", sym)?;
writeln!(f, "{sym}")?;
}
};
if let Err(error) = res {

7
compiler/rustc_codegen_ssa/src/back/metadata.rs
View File

@ -158,20 +158,19 @@ pub(super) fn get_metadata_xcoff<'a>(path: &Path, data: &'a [u8]) -> Result<&'a
{
let offset = metadata_symbol.address() as usize;
if offset < 4 {
return Err(format!("Invalid metadata symbol offset: {}", offset));
return Err(format!("Invalid metadata symbol offset: {offset}"));
}
// The offset specifies the location of rustc metadata in the comment section.
// The metadata is preceded by a 4-byte length field.
let len = u32::from_be_bytes(info_data[(offset - 4)..offset].try_into().unwrap()) as usize;
if offset + len > (info_data.len() as usize) {
return Err(format!(
"Metadata at offset {} with size {} is beyond .info section",
offset, len
"Metadata at offset {offset} with size {len} is beyond .info section"
));
}
return Ok(&info_data[offset..(offset + len)]);
} else {
return Err(format!("Unable to find symbol {}", AIX_METADATA_SYMBOL_NAME));
return Err(format!("Unable to find symbol {AIX_METADATA_SYMBOL_NAME}"));
};
}

2
compiler/rustc_codegen_ssa/src/back/rpath.rs
View File

@ -86,7 +86,7 @@ fn get_rpath_relative_to_output(config: &mut RPathConfig<'_>, lib: &Path) -> Str
output.pop(); // strip filename
let output = fs::canonicalize(&output).unwrap_or(output);
let relative = path_relative_from(&lib, &output)
.unwrap_or_else(|| panic!("couldn't create relative path from {:?} to {:?}", output, lib));
.unwrap_or_else(|| panic!("couldn't create relative path from {output:?} to {lib:?}"));
// FIXME (#9639): This needs to handle non-utf8 paths
format!("{}/{}", prefix, relative.to_str().expect("non-utf8 component in path"))
}

4
compiler/rustc_codegen_ssa/src/back/write.rs
View File

@ -1471,7 +1471,7 @@ fn start_executing_work<B: ExtraBackendMethods>(
}
}
Err(e) => {
let msg = &format!("failed to acquire jobserver token: {}", e);
let msg = &format!("failed to acquire jobserver token: {e}");
shared_emitter.fatal(msg);
codegen_state = Aborted;
}
@ -2041,7 +2041,7 @@ pub fn submit_pre_lto_module_to_llvm<B: ExtraBackendMethods>(
}
pub fn pre_lto_bitcode_filename(module_name: &str) -> String {
format!("{}.{}", module_name, PRE_LTO_BC_EXT)
format!("{module_name}.{PRE_LTO_BC_EXT}")
}
fn msvc_imps_needed(tcx: TyCtxt<'_>) -> bool {

18
compiler/rustc_codegen_ssa/src/debuginfo/type_names.rs
View File

@ -414,7 +414,7 @@ fn push_debuginfo_type_name<'tcx>(
}
// Type parameters from polymorphized functions.
ty::Param(_) => {
write!(output, "{:?}", t).unwrap();
write!(output, "{t:?}").unwrap();
}
ty::Error(_)
| ty::Infer(_)
@ -565,9 +565,9 @@ fn push_disambiguated_special_name(
output: &mut String,
) {
if cpp_like_debuginfo {
write!(output, "{}${}", label, disambiguator).unwrap();
write!(output, "{label}${disambiguator}").unwrap();
} else {
write!(output, "{{{}#{}}}", label, disambiguator).unwrap();
write!(output, "{{{label}#{disambiguator}}}").unwrap();
}
}
@ -651,15 +651,15 @@ fn push_const_param<'tcx>(tcx: TyCtxt<'tcx>, ct: ty::Const<'tcx>, output: &mut S
ty::Int(ity) => {
let bits = ct.eval_bits(tcx, ty::ParamEnv::reveal_all(), ct.ty());
let val = Integer::from_int_ty(&tcx, *ity).size().sign_extend(bits) as i128;
write!(output, "{}", val)
write!(output, "{val}")
}
ty::Uint(_) => {
let val = ct.eval_bits(tcx, ty::ParamEnv::reveal_all(), ct.ty());
write!(output, "{}", val)
write!(output, "{val}")
}
ty::Bool => {
let val = ct.try_eval_bool(tcx, ty::ParamEnv::reveal_all()).unwrap();
write!(output, "{}", val)
write!(output, "{val}")
}
_ => {
// If we cannot evaluate the constant to a known type, we fall back
@ -678,9 +678,9 @@ fn push_const_param<'tcx>(tcx: TyCtxt<'tcx>, ct: ty::Const<'tcx>, output: &mut S
});
if cpp_like_debuginfo(tcx) {
write!(output, "CONST${:x}", hash_short)
write!(output, "CONST${hash_short:x}")
} else {
write!(output, "{{CONST#{:x}}}", hash_short)
write!(output, "{{CONST#{hash_short:x}}}")
}
}
},
@ -752,7 +752,7 @@ fn push_close_angle_bracket(cpp_like_debuginfo: bool, output: &mut String) {
}
fn pop_close_angle_bracket(output: &mut String) {
assert!(output.ends_with('>'), "'output' does not end with '>': {}", output);
assert!(output.ends_with('>'), "'output' does not end with '>': {output}");
output.pop();
if output.ends_with(' ') {
output.pop();

20
compiler/rustc_codegen_ssa/src/errors.rs
View File

@ -177,31 +177,31 @@ impl IntoDiagnostic<'_> for ThorinErrorWrapper {
}
thorin::Error::NamelessSection(_, offset) => {
diag = handler.struct_err(fluent::codegen_ssa_thorin_section_without_name);
diag.set_arg("offset", format!("0x{:08x}", offset));
diag.set_arg("offset", format!("0x{offset:08x}"));
diag
}
thorin::Error::RelocationWithInvalidSymbol(section, offset) => {
diag =
handler.struct_err(fluent::codegen_ssa_thorin_relocation_with_invalid_symbol);
diag.set_arg("section", section);
diag.set_arg("offset", format!("0x{:08x}", offset));
diag.set_arg("offset", format!("0x{offset:08x}"));
diag
}
thorin::Error::MultipleRelocations(section, offset) => {
diag = handler.struct_err(fluent::codegen_ssa_thorin_multiple_relocations);
diag.set_arg("section", section);
diag.set_arg("offset", format!("0x{:08x}", offset));
diag.set_arg("offset", format!("0x{offset:08x}"));
diag
}
thorin::Error::UnsupportedRelocation(section, offset) => {
diag = handler.struct_err(fluent::codegen_ssa_thorin_unsupported_relocation);
diag.set_arg("section", section);
diag.set_arg("offset", format!("0x{:08x}", offset));
diag.set_arg("offset", format!("0x{offset:08x}"));
diag
}
thorin::Error::MissingDwoName(id) => {
diag = handler.struct_err(fluent::codegen_ssa_thorin_missing_dwo_name);
diag.set_arg("id", format!("0x{:08x}", id));
diag.set_arg("id", format!("0x{id:08x}"));
diag
}
thorin::Error::NoCompilationUnits => {
@ -251,7 +251,7 @@ impl IntoDiagnostic<'_> for ThorinErrorWrapper {
}
thorin::Error::StrAtOffset(_, offset) => {
diag = handler.struct_err(fluent::codegen_ssa_thorin_str_at_offset);
diag.set_arg("offset", format!("0x{:08x}", offset));
diag.set_arg("offset", format!("0x{offset:08x}"));
diag
}
thorin::Error::ParseIndex(_, section) => {
@ -261,7 +261,7 @@ impl IntoDiagnostic<'_> for ThorinErrorWrapper {
}
thorin::Error::UnitNotInIndex(unit) => {
diag = handler.struct_err(fluent::codegen_ssa_thorin_unit_not_in_index);
diag.set_arg("unit", format!("0x{:08x}", unit));
diag.set_arg("unit", format!("0x{unit:08x}"));
diag
}
thorin::Error::RowNotInIndex(_, row) => {
@ -275,7 +275,7 @@ impl IntoDiagnostic<'_> for ThorinErrorWrapper {
}
thorin::Error::EmptyUnit(unit) => {
diag = handler.struct_err(fluent::codegen_ssa_thorin_empty_unit);
diag.set_arg("unit", format!("0x{:08x}", unit));
diag.set_arg("unit", format!("0x{unit:08x}"));
diag
}
thorin::Error::MultipleDebugInfoSection => {
@ -292,12 +292,12 @@ impl IntoDiagnostic<'_> for ThorinErrorWrapper {
}
thorin::Error::DuplicateUnit(unit) => {
diag = handler.struct_err(fluent::codegen_ssa_thorin_duplicate_unit);
diag.set_arg("unit", format!("0x{:08x}", unit));
diag.set_arg("unit", format!("0x{unit:08x}"));
diag
}
thorin::Error::MissingReferencedUnit(unit) => {
diag = handler.struct_err(fluent::codegen_ssa_thorin_missing_referenced_unit);
diag.set_arg("unit", format!("0x{:08x}", unit));
diag.set_arg("unit", format!("0x{unit:08x}"));
diag
}
thorin::Error::NoOutputObjectCreated => {

16
compiler/rustc_codegen_ssa/src/mir/block.rs
View File

@ -703,13 +703,12 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> {
with_no_trimmed_paths!({
if layout.abi.is_uninhabited() {
// Use this error even for the other intrinsics as it is more precise.
format!("attempted to instantiate uninhabited type `{}`", ty)
format!("attempted to instantiate uninhabited type `{ty}`")
} else if requirement == ValidityRequirement::Zero {
format!("attempted to zero-initialize type `{}`, which is invalid", ty)
format!("attempted to zero-initialize type `{ty}`, which is invalid")
} else {
format!(
"attempted to leave type `{}` uninitialized, which is invalid",
ty
"attempted to leave type `{ty}` uninitialized, which is invalid"
)
}
})
@ -1045,10 +1044,7 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> {
assert_eq!(
fn_abi.args.len(),
mir_args + 1,
"#[track_caller] fn's must have 1 more argument in their ABI than in their MIR: {:?} {:?} {:?}",
instance,
fn_span,
fn_abi,
"#[track_caller] fn's must have 1 more argument in their ABI than in their MIR: {instance:?} {fn_span:?} {fn_abi:?}",
);
let location =
self.get_caller_location(bx, mir::SourceInfo { span: fn_span, ..source_info });
@ -1555,7 +1551,7 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> {
fn landing_pad_for_uncached(&mut self, bb: mir::BasicBlock) -> Bx::BasicBlock {
let llbb = self.llbb(bb);
if base::wants_new_eh_instructions(self.cx.sess()) {
let cleanup_bb = Bx::append_block(self.cx, self.llfn, &format!("funclet_{:?}", bb));
let cleanup_bb = Bx::append_block(self.cx, self.llfn, &format!("funclet_{bb:?}"));
let mut cleanup_bx = Bx::build(self.cx, cleanup_bb);
let funclet = cleanup_bx.cleanup_pad(None, &[]);
cleanup_bx.br(llbb);
@ -1675,7 +1671,7 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> {
match self.cached_llbbs[bb] {
CachedLlbb::None => {
// FIXME(eddyb) only name the block if `fewer_names` is `false`.
let llbb = Bx::append_block(self.cx, self.llfn, &format!("{:?}", bb));
let llbb = Bx::append_block(self.cx, self.llfn, &format!("{bb:?}"));
self.cached_llbbs[bb] = CachedLlbb::Some(llbb);
Some(llbb)
}

2
compiler/rustc_codegen_ssa/src/mir/debuginfo.rs
View File

@ -337,7 +337,7 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> {
} else {
Some(match whole_local_var.or(fallback_var.clone()) {
Some(var) if var.name != kw::Empty => var.name.to_string(),
_ => format!("{:?}", local),
_ => format!("{local:?}"),
})
};

3
compiler/rustc_codegen_ssa/src/mir/rvalue.rs
View File

@ -397,8 +397,7 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> {
) -> OperandRef<'tcx, Bx::Value> {
assert!(
self.rvalue_creates_operand(rvalue, DUMMY_SP),
"cannot codegen {:?} to operand",
rvalue,
"cannot codegen {rvalue:?} to operand",
);
match *rvalue {

4
compiler/rustc_codegen_ssa/src/mono_item.rs
View File

@ -140,8 +140,8 @@ impl<'a, 'tcx: 'a> MonoItemExt<'a, 'tcx> for MonoItem<'tcx> {
MonoItem::Fn(instance) => {
format!("Fn({:?}, {})", instance.def, instance.args.as_ptr().addr())
}
MonoItem::Static(id) => format!("Static({:?})", id),
MonoItem::GlobalAsm(id) => format!("GlobalAsm({:?})", id),
MonoItem::Static(id) => format!("Static({id:?})"),
MonoItem::GlobalAsm(id) => format!("GlobalAsm({id:?})"),
}
}
}

6
compiler/rustc_codegen_ssa/src/target_features.rs
View File

@ -369,9 +369,9 @@ pub fn from_target_feature(
// We allow comma separation to enable multiple features.
target_features.extend(value.as_str().split(',').filter_map(|feature| {
let Some(feature_gate) = supported_target_features.get(feature) else {
let msg = format!("the feature named `{}` is not valid for this target", feature);
let msg = format!("the feature named `{feature}` is not valid for this target");
let mut err = tcx.sess.struct_span_err(item.span(), msg);
err.span_label(item.span(), format!("`{}` is not valid for this target", feature));
err.span_label(item.span(), format!("`{feature}` is not valid for this target"));
if let Some(stripped) = feature.strip_prefix('+') {
let valid = supported_target_features.contains_key(stripped);
if valid {
@ -405,7 +405,7 @@ pub fn from_target_feature(
&tcx.sess.parse_sess,
feature_gate.unwrap(),
item.span(),
format!("the target feature `{}` is currently unstable", feature),
format!("the target feature `{feature}` is currently unstable"),
)
.emit();
}

2
compiler/rustc_hir_typeck/src/pat.rs
View File

@ -755,7 +755,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
match binding_parent {
// Check that there is explicit type (ie this is not a closure param with inferred type)
// so we don't suggest moving something to the type that does not exist
hir::Node::Param(hir::Param { ty_span, .. }) if binding.span != *ty_span => {
hir::Node::Param(hir::Param { ty_span, pat, .. }) if pat.span != *ty_span => {
err.multipart_suggestion_verbose(
format!("to take parameter `{binding}` by reference, move `&{mutability}` to the type"),
vec![

10
compiler/rustc_incremental/src/assert_dep_graph.rs
View File

@ -241,16 +241,16 @@ fn dump_graph(query: &DepGraphQuery) {
{
// dump a .txt file with just the edges:
let txt_path = format!("{}.txt", path);
let txt_path = format!("{path}.txt");
let mut file = BufWriter::new(File::create(&txt_path).unwrap());
for (source, target) in &edges {
write!(file, "{:?} -> {:?}\n", source, target).unwrap();
write!(file, "{source:?} -> {target:?}\n").unwrap();
}
}
{
// dump a .dot file in graphviz format:
let dot_path = format!("{}.dot", path);
let dot_path = format!("{path}.dot");
let mut v = Vec::new();
dot::render(&GraphvizDepGraph(nodes, edges), &mut v).unwrap();
fs::write(dot_path, v).unwrap();
@ -285,7 +285,7 @@ impl<'a> dot::Labeller<'a> for GraphvizDepGraph {
dot::Id::new("DependencyGraph").unwrap()
}
fn node_id(&self, n: &DepKind) -> dot::Id<'_> {
let s: String = format!("{:?}", n)
let s: String = format!("{n:?}")
.chars()
.map(|c| if c == '_' || c.is_alphanumeric() { c } else { '_' })
.collect();
@ -293,7 +293,7 @@ impl<'a> dot::Labeller<'a> for GraphvizDepGraph {
dot::Id::new(s).unwrap()
}
fn node_label(&self, n: &DepKind) -> dot::LabelText<'_> {
dot::LabelText::label(format!("{:?}", n))
dot::LabelText::label(format!("{n:?}"))
}
}

2
compiler/rustc_incremental/src/persist/dirty_clean.rs
View File

@ -300,7 +300,7 @@ impl<'tcx> DirtyCleanVisitor<'tcx> {
},
_ => self.tcx.sess.emit_fatal(errors::UndefinedCleanDirty {
span: attr.span,
kind: format!("{:?}", node),
kind: format!("{node:?}"),
}),
};
let labels =

8
compiler/rustc_incremental/src/persist/fs.rs
View File

@ -427,13 +427,11 @@ fn copy_files(sess: &Session, target_dir: &Path, source_dir: &Path) -> Result<bo
if sess.opts.unstable_opts.incremental_info {
eprintln!(
"[incremental] session directory: \
{} files hard-linked",
files_linked
{files_linked} files hard-linked"
);
eprintln!(
"[incremental] session directory: \
{} files copied",
files_copied
{files_copied} files copied"
);
}
@ -604,7 +602,7 @@ fn crate_path(sess: &Session, crate_name: Symbol, stable_crate_id: StableCrateId
let stable_crate_id = base_n::encode(stable_crate_id.as_u64() as u128, INT_ENCODE_BASE);
let crate_name = format!("{}-{}", crate_name, stable_crate_id);
let crate_name = format!("{crate_name}-{stable_crate_id}");
incr_dir.join(crate_name)
}

16
compiler/rustc_infer/src/errors/mod.rs
View File

@ -210,10 +210,8 @@ impl<'a> SourceKindMultiSuggestion<'a> {
_ => ("", ""),
};
let (start_span, start_span_code, end_span) = match should_wrap_expr {
Some(end_span) => {
(data.span(), format!("{}{}{}{{ ", arrow, ty_info, post), Some(end_span))
}
None => (data.span(), format!("{}{}{}", arrow, ty_info, post), None),
Some(end_span) => (data.span(), format!("{arrow}{ty_info}{post}{{ "), Some(end_span)),
None => (data.span(), format!("{arrow}{ty_info}{post}"), None),
};
Self::ClosureReturn { start_span, start_span_code, end_span }
}
@ -404,9 +402,9 @@ impl AddToDiagnostic for AddLifetimeParamsSuggestion<'_> {
debug!(?lifetime_sub.ident.span);
let make_suggestion = |ident: Ident| {
let sugg = if ident.name == kw::Empty {
format!("{}, ", suggestion_param_name)
format!("{suggestion_param_name}, ")
} else if ident.name == kw::UnderscoreLifetime && ident.span.is_empty() {
format!("{} ", suggestion_param_name)
format!("{suggestion_param_name} ")
} else {
suggestion_param_name.clone()
};
@ -419,9 +417,9 @@ impl AddToDiagnostic for AddLifetimeParamsSuggestion<'_> {
let new_param_suggestion = if let Some(first) =
generics.params.iter().find(|p| !p.name.ident().span.is_empty())
{
(first.span.shrink_to_lo(), format!("{}, ", suggestion_param_name))
(first.span.shrink_to_lo(), format!("{suggestion_param_name}, "))
} else {
(generics.span, format!("<{}>", suggestion_param_name))
(generics.span, format!("<{suggestion_param_name}>"))
};
suggestions.push(new_param_suggestion);
@ -1320,7 +1318,7 @@ impl AddToDiagnostic for SuggestTuplePatternMany {
message,
self.compatible_variants.into_iter().map(|variant| {
vec![
(self.cause_span.shrink_to_lo(), format!("{}(", variant)),
(self.cause_span.shrink_to_lo(), format!("{variant}(")),
(self.cause_span.shrink_to_hi(), ")".to_string()),
]
}),

2
compiler/rustc_infer/src/errors/note_and_explain.rs
View File

@ -80,7 +80,7 @@ impl<'a> DescriptionCtx<'a> {
// We shouldn't really be having unification failures with ReVar
// and ReLateBound though.
ty::ReVar(_) | ty::ReLateBound(..) | ty::ReErased => {
(alt_span, "revar", format!("{:?}", region))
(alt_span, "revar", format!("{region:?}"))
}
};
Some(DescriptionCtx { span, kind, arg })

2
compiler/rustc_infer/src/infer/canonical/canonicalizer.rs
View File

@ -205,7 +205,7 @@ impl CanonicalizeMode for CanonicalizeQueryResponse {
// `delay_span_bug` to allow type error over an ICE.
canonicalizer.tcx.sess.delay_span_bug(
rustc_span::DUMMY_SP,
format!("unexpected region in query response: `{:?}`", r),
format!("unexpected region in query response: `{r:?}`"),
);
r
}

2
compiler/rustc_infer/src/infer/combine.rs
View File

@ -177,7 +177,7 @@ impl<'tcx> InferCtxt<'tcx> {
self.tcx.check_tys_might_be_eq(canonical).map_err(|_| {
self.tcx.sess.delay_span_bug(
DUMMY_SP,
format!("cannot relate consts of different types (a={:?}, b={:?})", a, b,),
format!("cannot relate consts of different types (a={a:?}, b={b:?})",),
)
})
});

55
compiler/rustc_infer/src/infer/error_reporting/mod.rs
View File

@ -238,7 +238,7 @@ fn msg_span_from_named_region<'tcx>(
let text = if name == kw::UnderscoreLifetime {
"the anonymous lifetime as defined here".to_string()
} else {
format!("the lifetime `{}` as defined here", name)
format!("the lifetime `{name}` as defined here")
};
(text, Some(span))
}
@ -250,7 +250,7 @@ fn msg_span_from_named_region<'tcx>(
})
),
_ => (
format!("the lifetime `{}` as defined here", region),
format!("the lifetime `{region}` as defined here"),
Some(tcx.def_span(scope)),
),
}
@ -280,7 +280,7 @@ fn emit_msg_span(
span: Option<Span>,
suffix: &str,
) {
let message = format!("{}{}{}", prefix, description, suffix);
let message = format!("{prefix}{description}{suffix}");
if let Some(span) = span {
err.span_note(span, message);
@ -296,7 +296,7 @@ fn label_msg_span(
span: Option<Span>,
suffix: &str,
) {
let message = format!("{}{}{}", prefix, description, suffix);
let message = format!("{prefix}{description}{suffix}");
if let Some(span) = span {
err.span_label(span, message);
@ -333,7 +333,7 @@ pub fn unexpected_hidden_region_diagnostic<'tcx>(
explain_free_region(
tcx,
&mut err,
&format!("hidden type `{}` captures ", hidden_ty),
&format!("hidden type `{hidden_ty}` captures "),
hidden_region,
"",
);
@ -345,7 +345,7 @@ pub fn unexpected_hidden_region_diagnostic<'tcx>(
fn_returns,
hidden_region.to_string(),
None,
format!("captures `{}`", hidden_region),
format!("captures `{hidden_region}`"),
None,
Some(reg_info.def_id),
)
@ -373,7 +373,7 @@ pub fn unexpected_hidden_region_diagnostic<'tcx>(
note_and_explain_region(
tcx,
&mut err,
&format!("hidden type `{}` captures ", hidden_ty),
&format!("hidden type `{hidden_ty}` captures "),
hidden_region,
"",
None,
@ -716,7 +716,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
{
err.span_label(span, format!("this is an iterator with items of type `{}`", args.type_at(0)));
} else {
err.span_label(span, format!("this expression has type `{}`", ty));
err.span_label(span, format!("this expression has type `{ty}`"));
}
}
if let Some(ty::error::ExpectedFound { found, .. }) = exp_found
@ -726,7 +726,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
err.span_suggestion(
span,
"consider dereferencing the boxed value",
format!("*{}", snippet),
format!("*{snippet}"),
Applicability::MachineApplicable,
);
}
@ -785,13 +785,13 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
if prior_arms.len() <= 4 {
for sp in prior_arms {
any_multiline_arm |= source_map.is_multiline(*sp);
err.span_label(*sp, format!("this is found to be of type `{}`", t));
err.span_label(*sp, format!("this is found to be of type `{t}`"));
}
} else if let Some(sp) = prior_arms.last() {
any_multiline_arm |= source_map.is_multiline(*sp);
err.span_label(
*sp,
format!("this and all prior arms are found to be of type `{}`", t),
format!("this and all prior arms are found to be of type `{t}`"),
);
}
let outer = if any_multiline_arm || !source_map.is_multiline(cause.span) {
@ -1661,7 +1661,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
..
})) = values
{
Cow::from(format!("expected this to be `{}`", expected))
Cow::from(format!("expected this to be `{expected}`"))
} else {
terr.to_string(self.tcx)
};
@ -2368,13 +2368,13 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
}
let labeled_user_string = match bound_kind {
GenericKind::Param(ref p) => format!("the parameter type `{}`", p),
GenericKind::Param(ref p) => format!("the parameter type `{p}`"),
GenericKind::Alias(ref p) => match p.kind(self.tcx) {
ty::AliasKind::Projection | ty::AliasKind::Inherent => {
format!("the associated type `{}`", p)
format!("the associated type `{p}`")
}
ty::AliasKind::Weak => format!("the type alias `{}`", p),
ty::AliasKind::Opaque => format!("the opaque type `{}`", p),
ty::AliasKind::Weak => format!("the type alias `{p}`"),
ty::AliasKind::Opaque => format!("the opaque type `{p}`"),
},
};
@ -2388,7 +2388,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
span,
impl_item_def_id,
trait_item_def_id,
&format!("`{}: {}`", bound_kind, sub),
&format!("`{bound_kind}: {sub}`"),
);
}
@ -2402,7 +2402,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
let msg = "consider adding an explicit lifetime bound";
if let Some((sp, has_lifetimes)) = type_param_span {
let suggestion =
if has_lifetimes { format!(" + {}", sub) } else { format!(": {}", sub) };
if has_lifetimes { format!(" + {sub}") } else { format!(": {sub}") };
let mut suggestions = vec![(sp, suggestion)];
for add_lt_sugg in add_lt_suggs.into_iter().flatten() {
suggestions.push(add_lt_sugg);
@ -2413,7 +2413,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
Applicability::MaybeIncorrect, // Issue #41966
);
} else {
let consider = format!("{} `{}: {}`...", msg, bound_kind, sub);
let consider = format!("{msg} `{bound_kind}: {sub}`...");
err.help(consider);
}
}
@ -2422,13 +2422,10 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
|err: &mut Diagnostic, type_param_span: Option<(Span, bool)>| {
let msg = "consider introducing an explicit lifetime bound";
if let Some((sp, has_lifetimes)) = type_param_span {
let suggestion = if has_lifetimes {
format!(" + {}", new_lt)
} else {
format!(": {}", new_lt)
};
let suggestion =
if has_lifetimes { format!(" + {new_lt}") } else { format!(": {new_lt}") };
let mut sugg =
vec![(sp, suggestion), (span.shrink_to_hi(), format!(" + {}", new_lt))];
vec![(sp, suggestion), (span.shrink_to_hi(), format!(" + {new_lt}"))];
for lt in add_lt_suggs.clone().into_iter().flatten() {
sugg.push(lt);
sugg.rotate_right(1);
@ -2508,7 +2505,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
"{} may not live long enough",
labeled_user_string
);
let pred = format!("{}: {}", bound_kind, sub);
let pred = format!("{bound_kind}: {sub}");
let suggestion = format!("{} {}", generics.add_where_or_trailing_comma(), pred,);
err.span_suggestion(
generics.tail_span_for_predicate_suggestion(),
@ -2564,7 +2561,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
note_and_explain_region(
self.tcx,
&mut err,
&format!("{} must be valid for ", labeled_user_string),
&format!("{labeled_user_string} must be valid for "),
sub,
"...",
None,
@ -2814,10 +2811,10 @@ impl<'tcx> InferCtxt<'tcx> {
br_string(br),
self.tcx.associated_item(def_id).name
),
infer::EarlyBoundRegion(_, name) => format!(" for lifetime parameter `{}`", name),
infer::EarlyBoundRegion(_, name) => format!(" for lifetime parameter `{name}`"),
infer::UpvarRegion(ref upvar_id, _) => {
let var_name = self.tcx.hir().name(upvar_id.var_path.hir_id);
format!(" for capture of `{}` by closure", var_name)
format!(" for capture of `{var_name}` by closure")
}
infer::Nll(..) => bug!("NLL variable found in lexical phase"),
};

2
compiler/rustc_infer/src/infer/error_reporting/need_type_info.rs
View File

@ -246,7 +246,7 @@ fn closure_as_fn_str<'tcx>(infcx: &InferCtxt<'tcx>, ty: Ty<'tcx>) -> String {
} else {
format!(" -> {}", ty_to_string(infcx, fn_sig.output().skip_binder(), None))
};
format!("fn({}){}", args, ret)
format!("fn({args}){ret}")
}
impl<'tcx> InferCtxt<'tcx> {

19
compiler/rustc_infer/src/infer/error_reporting/nice_region_error/static_impl_trait.rs
View File

@ -235,10 +235,10 @@ impl<'a, 'tcx> NiceRegionError<'a, 'tcx> {
}
let arg = match param.param.pat.simple_ident() {
Some(simple_ident) => format!("argument `{}`", simple_ident),
Some(simple_ident) => format!("argument `{simple_ident}`"),
None => "the argument".to_string(),
};
let captures = format!("captures data from {}", arg);
let captures = format!("captures data from {arg}");
suggest_new_region_bound(
tcx,
&mut err,
@ -269,11 +269,11 @@ pub fn suggest_new_region_bound(
// FIXME: account for the need of parens in `&(dyn Trait + '_)`
let consider = "consider changing";
let declare = "to declare that";
let explicit = format!("you can add an explicit `{}` lifetime bound", lifetime_name);
let explicit = format!("you can add an explicit `{lifetime_name}` lifetime bound");
let explicit_static =
arg.map(|arg| format!("explicit `'static` bound to the lifetime of {}", arg));
arg.map(|arg| format!("explicit `'static` bound to the lifetime of {arg}"));
let add_static_bound = "alternatively, add an explicit `'static` bound to this reference";
let plus_lt = format!(" + {}", lifetime_name);
let plus_lt = format!(" + {lifetime_name}");
for fn_return in fn_returns {
if fn_return.span.desugaring_kind().is_some() {
// Skip `async` desugaring `impl Future`.
@ -383,12 +383,7 @@ pub fn suggest_new_region_bound(
if let LifetimeName::ImplicitObjectLifetimeDefault = lt.res {
err.span_suggestion_verbose(
fn_return.span.shrink_to_hi(),
format!(
"{declare} the trait object {captures}, {explicit}",
declare = declare,
captures = captures,
explicit = explicit,
),
format!("{declare} the trait object {captures}, {explicit}",),
&plus_lt,
Applicability::MaybeIncorrect,
);
@ -400,7 +395,7 @@ pub fn suggest_new_region_bound(
if let Some(explicit_static) = &explicit_static {
err.span_suggestion_verbose(
lt.ident.span,
format!("{} the trait object's {}", consider, explicit_static),
format!("{consider} the trait object's {explicit_static}"),
&lifetime_name,
Applicability::MaybeIncorrect,
);

4
compiler/rustc_infer/src/infer/error_reporting/note.rs
View File

@ -227,7 +227,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
span,
impl_item_def_id,
trait_item_def_id,
&format!("`{}: {}`", sup, sub),
&format!("`{sup}: {sub}`"),
);
// We should only suggest rewriting the `where` clause if the predicate is within that `where` clause
if let Some(generics) = self.tcx.hir().get_generics(impl_item_def_id)
@ -251,7 +251,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
let item_name = self.tcx.item_name(impl_item_def_id.to_def_id());
err.span_label(
trait_item_span,
format!("definition of `{}` from trait", item_name),
format!("definition of `{item_name}` from trait"),
);
}

9
compiler/rustc_infer/src/infer/error_reporting/note_and_explain.rs
View File

@ -47,7 +47,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
diag.span_suggestion(
sp,
"use a float literal",
format!("{}.0", snippet),
format!("{snippet}.0"),
MachineApplicable,
);
}
@ -134,7 +134,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
if matched_end_of_args {
// Append suggestion to the end of our args
let path = format!(", {}{} = {}",item_name, item_args, p);
let path = format!(", {item_name}{item_args} = {p}");
note = !suggest_constraining_type_param(
tcx,
generics,
@ -148,7 +148,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
// Suggest adding a bound to an existing trait
// or if the trait doesn't exist, add the trait
// and the suggested bounds.
let path = format!("<{}{} = {}>", item_name, item_args, p);
let path = format!("<{item_name}{item_args} = {p}>");
note = !suggest_constraining_type_param(
tcx,
generics,
@ -213,8 +213,7 @@ impl<T> Trait<T> for X {
}
diag.help(format!(
"every closure has a distinct type and so could not always match the \
caller-chosen type of parameter `{}`",
p
caller-chosen type of parameter `{p}`"
));
}
(ty::Param(p), _) | (_, ty::Param(p)) => {

4
compiler/rustc_infer/src/infer/error_reporting/suggest.rs
View File

@ -575,12 +575,12 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
if param_hir.pat.span == param_hir.ty_span {
// for `|x|`, `|_|`, `|x: impl Foo|`
let Ok(pat) = self.tcx.sess.source_map().span_to_snippet(param_hir.pat.span) else { return; };
suggestion += &format!("{}: &_", pat);
suggestion += &format!("{pat}: &_");
} else {
// for `|x: ty|`, `|_: ty|`
let Ok(pat) = self.tcx.sess.source_map().span_to_snippet(param_hir.pat.span) else { return; };
let Ok(ty) = self.tcx.sess.source_map().span_to_snippet(param_hir.ty_span) else { return; };
suggestion += &format!("{}: &{}", pat, ty);
suggestion += &format!("{pat}: &{ty}");
}
has_suggestion = true;
} else {

5
compiler/rustc_infer/src/infer/lexical_region_resolve/mod.rs
View File

@ -837,9 +837,8 @@ impl<'cx, 'tcx> LexicalResolver<'cx, 'tcx> {
self.var_infos[node_idx].origin.span(),
format!(
"collect_error_for_expanding_node() could not find \
error for var {:?} in universe {:?}, lower_bounds={:#?}, \
upper_bounds={:#?}",
node_idx, node_universe, lower_bounds, upper_bounds
error for var {node_idx:?} in universe {node_universe:?}, lower_bounds={lower_bounds:#?}, \
upper_bounds={upper_bounds:#?}"
),
);
}

2
compiler/rustc_infer/src/infer/nll_relate/mod.rs
View File

@ -557,7 +557,7 @@ where
// Forbid inference variables in the RHS.
self.infcx.tcx.sess.delay_span_bug(
self.delegate.span(),
format!("unexpected inference var {:?}", b,),
format!("unexpected inference var {b:?}",),
);
Ok(a)
}

2
compiler/rustc_infer/src/infer/outlives/obligations.rs
View File

@ -253,7 +253,7 @@ where
// this point it never will be
self.tcx.sess.delay_span_bug(
origin.span(),
format!("unresolved inference variable in outlives: {:?}", v),
format!("unresolved inference variable in outlives: {v:?}"),
);
}
}

2
compiler/rustc_infer/src/infer/outlives/verify.rs
View File

@ -179,7 +179,7 @@ impl<'cx, 'tcx> VerifyBoundCx<'cx, 'tcx> {
// this point it never will be
self.tcx.sess.delay_span_bug(
rustc_span::DUMMY_SP,
format!("unresolved inference variable in outlives: {:?}", v),
format!("unresolved inference variable in outlives: {v:?}"),
);
// add a bound that never holds
VerifyBound::AnyBound(vec![])

8
compiler/rustc_infer/src/infer/region_constraints/mod.rs
View File

@ -704,8 +704,8 @@ impl fmt::Debug for RegionSnapshot {
impl<'tcx> fmt::Debug for GenericKind<'tcx> {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match *self {
GenericKind::Param(ref p) => write!(f, "{:?}", p),
GenericKind::Alias(ref p) => write!(f, "{:?}", p),
GenericKind::Param(ref p) => write!(f, "{p:?}"),
GenericKind::Alias(ref p) => write!(f, "{p:?}"),
}
}
}
@ -713,8 +713,8 @@ impl<'tcx> fmt::Debug for GenericKind<'tcx> {
impl<'tcx> fmt::Display for GenericKind<'tcx> {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match *self {
GenericKind::Param(ref p) => write!(f, "{}", p),
GenericKind::Alias(ref p) => write!(f, "{}", p),
GenericKind::Param(ref p) => write!(f, "{p}"),
GenericKind::Alias(ref p) => write!(f, "{p}"),
}
}
}

6
compiler/rustc_infer/src/traits/error_reporting/mod.rs
View File

@ -28,11 +28,11 @@ impl<'tcx> InferCtxt<'tcx> {
if !self.tcx.is_impl_trait_in_trait(trait_item_def_id) {
if let Some(span) = self.tcx.hir().span_if_local(trait_item_def_id) {
let item_name = self.tcx.item_name(impl_item_def_id.to_def_id());
err.span_label(span, format!("definition of `{}` from trait", item_name));
err.span_label(span, format!("definition of `{item_name}` from trait"));
}
}
err.span_label(error_span, format!("impl has extra requirement {}", requirement));
err.span_label(error_span, format!("impl has extra requirement {requirement}"));
err
}
@ -56,7 +56,7 @@ pub fn report_object_safety_error<'tcx>(
"the trait `{}` cannot be made into an object",
trait_str
);
err.span_label(span, format!("`{}` cannot be made into an object", trait_str));
err.span_label(span, format!("`{trait_str}` cannot be made into an object"));
let mut reported_violations = FxIndexSet::default();
let mut multi_span = vec![];

8
compiler/rustc_infer/src/traits/project.rs
View File

@ -190,7 +190,7 @@ impl<'tcx> ProjectionCache<'_, 'tcx> {
}
let fresh_key =
map.insert(key, ProjectionCacheEntry::NormalizedTy { ty: value, complete: None });
assert!(!fresh_key, "never started projecting `{:?}`", key);
assert!(!fresh_key, "never started projecting `{key:?}`");
}
/// Mark the relevant projection cache key as having its derived obligations
@ -229,7 +229,7 @@ impl<'tcx> ProjectionCache<'_, 'tcx> {
/// be different).
pub fn ambiguous(&mut self, key: ProjectionCacheKey<'tcx>) {
let fresh = self.map().insert(key, ProjectionCacheEntry::Ambiguous);
assert!(!fresh, "never started projecting `{:?}`", key);
assert!(!fresh, "never started projecting `{key:?}`");
}
/// Indicates that while trying to normalize `key`, `key` was required to
@ -237,14 +237,14 @@ impl<'tcx> ProjectionCache<'_, 'tcx> {
/// an error here.
pub fn recur(&mut self, key: ProjectionCacheKey<'tcx>) {
let fresh = self.map().insert(key, ProjectionCacheEntry::Recur);
assert!(!fresh, "never started projecting `{:?}`", key);
assert!(!fresh, "never started projecting `{key:?}`");
}
/// Indicates that trying to normalize `key` resulted in
/// error.
pub fn error(&mut self, key: ProjectionCacheKey<'tcx>) {
let fresh = self.map().insert(key, ProjectionCacheEntry::Error);
assert!(!fresh, "never started projecting `{:?}`", key);
assert!(!fresh, "never started projecting `{key:?}`");
}
}

10
compiler/rustc_infer/src/traits/structural_impls.rs
View File

@ -38,17 +38,17 @@ impl<'tcx> fmt::Debug for traits::FulfillmentError<'tcx> {
impl<'tcx> fmt::Debug for traits::FulfillmentErrorCode<'tcx> {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match *self {
super::CodeSelectionError(ref e) => write!(f, "{:?}", e),
super::CodeProjectionError(ref e) => write!(f, "{:?}", e),
super::CodeSelectionError(ref e) => write!(f, "{e:?}"),
super::CodeProjectionError(ref e) => write!(f, "{e:?}"),
super::CodeSubtypeError(ref a, ref b) => {
write!(f, "CodeSubtypeError({:?}, {:?})", a, b)
write!(f, "CodeSubtypeError({a:?}, {b:?})")
}
super::CodeConstEquateError(ref a, ref b) => {
write!(f, "CodeConstEquateError({:?}, {:?})", a, b)
write!(f, "CodeConstEquateError({a:?}, {b:?})")
}
super::CodeAmbiguity { overflow: false } => write!(f, "Ambiguity"),
super::CodeAmbiguity { overflow: true } => write!(f, "Overflow"),
super::CodeCycle(ref cycle) => write!(f, "Cycle({:?})", cycle),
super::CodeCycle(ref cycle) => write!(f, "Cycle({cycle:?})"),
}
}
}

2
compiler/rustc_metadata/src/locator.rs
View File

@ -908,7 +908,7 @@ pub fn list_file_metadata(
let flavor = get_flavor_from_path(path);
match get_metadata_section(target, flavor, path, metadata_loader) {
Ok(metadata) => metadata.list_crate_metadata(out),
Err(msg) => write!(out, "{}\n", msg),
Err(msg) => write!(out, "{msg}\n"),
}
}

2
compiler/rustc_metadata/src/rmeta/mod.rs
View File

@ -51,7 +51,7 @@ mod encoder;
mod table;
pub(crate) fn rustc_version(cfg_version: &'static str) -> String {
format!("rustc {}", cfg_version)
format!("rustc {cfg_version}")
}
/// Metadata encoding version.

4
compiler/rustc_mir_dataflow/src/value_analysis.rs
View File

@ -1099,10 +1099,10 @@ fn debug_with_context_rec<V: Debug + Eq>(
let info_elem = map.places[child].proj_elem.unwrap();
let child_place_str = match info_elem {
TrackElem::Discriminant => {
format!("discriminant({})", place_str)
format!("discriminant({place_str})")
}
TrackElem::Variant(idx) => {
format!("({} as {:?})", place_str, idx)
format!("({place_str} as {idx:?})")
}
TrackElem::Field(field) => {
if place_str.starts_with('*') {

2
compiler/rustc_parse/src/parser/expr.rs
View File

@ -2342,7 +2342,7 @@ impl<'a> Parser<'a> {
let ty = if this.eat(&token::Colon) {
this.parse_ty()?
} else {
this.mk_ty(this.prev_token.span, TyKind::Infer)
this.mk_ty(pat.span, TyKind::Infer)
};
Ok((

6
compiler/rustc_privacy/src/lib.rs
View File

@ -1941,7 +1941,7 @@ impl<'tcx> PrivateItemsInPublicInterfacesChecker<'tcx, '_> {
let reexported_at_vis = effective_vis.at_level(Level::Reexported);
let reachable_at_vis = effective_vis.at_level(Level::Reachable);
if reexported_at_vis != reachable_at_vis {
if reachable_at_vis.is_public() && reexported_at_vis != reachable_at_vis {
let hir_id = self.tcx.hir().local_def_id_to_hir_id(def_id);
let span = self.tcx.def_span(def_id.to_def_id());
self.tcx.emit_spanned_lint(
@ -1973,10 +1973,6 @@ impl<'tcx> PrivateItemsInPublicInterfacesChecker<'tcx, '_> {
AssocItemKind::Type => (self.tcx.defaultness(def_id).has_value(), true),
};
if is_assoc_ty {
self.check_unnameable(def_id, self.get(def_id));
}
check.in_assoc_ty = is_assoc_ty;
check.generics().predicates();
if check_ty {

2
compiler/rustc_resolve/src/build_reduced_graph.rs
View File

@ -1001,7 +1001,7 @@ impl<'a, 'b, 'tcx> BuildReducedGraphVisitor<'a, 'b, 'tcx> {
allow_shadowing: bool,
) {
if self.r.macro_use_prelude.insert(name, binding).is_some() && !allow_shadowing {
let msg = format!("`{}` is already in scope", name);
let msg = format!("`{name}` is already in scope");
let note =
"macro-expanded `#[macro_use]`s may not shadow existing macros (see RFC 1560)";
self.r.tcx.sess.struct_span_err(span, msg).note(note).emit();

2
compiler/rustc_resolve/src/check_unused.rs
View File

@ -362,7 +362,7 @@ impl Resolver<'_, '_> {
let mut span_snippets = spans
.iter()
.filter_map(|s| match tcx.sess.source_map().span_to_snippet(*s) {
Ok(s) => Some(format!("`{}`", s)),
Ok(s) => Some(format!("`{s}`")),
_ => None,
})
.collect::<Vec<String>>();

60
compiler/rustc_resolve/src/diagnostics.rs
View File

@ -243,7 +243,7 @@ impl<'a, 'tcx> Resolver<'a, 'tcx> {
(TypeNS, _) => "type",
};
let msg = format!("the name `{}` is defined multiple times", name);
let msg = format!("the name `{name}` is defined multiple times");
let mut err = match (old_binding.is_extern_crate(), new_binding.is_extern_crate()) {
(true, true) => struct_span_err!(self.tcx.sess, span, E0259, "{}", msg),
@ -265,11 +265,11 @@ impl<'a, 'tcx> Resolver<'a, 'tcx> {
container
));
err.span_label(span, format!("`{}` re{} here", name, new_participle));
err.span_label(span, format!("`{name}` re{new_participle} here"));
if !old_binding.span.is_dummy() && old_binding.span != span {
err.span_label(
self.tcx.sess.source_map().guess_head_span(old_binding.span),
format!("previous {} of the {} `{}` here", old_noun, old_kind, name),
format!("previous {old_noun} of the {old_kind} `{name}` here"),
);
}
@ -358,15 +358,15 @@ impl<'a, 'tcx> Resolver<'a, 'tcx> {
binding_span: Span,
) {
let suggested_name = if name.as_str().chars().next().unwrap().is_uppercase() {
format!("Other{}", name)
format!("Other{name}")
} else {
format!("other_{}", name)
format!("other_{name}")
};
let mut suggestion = None;
match import.kind {
ImportKind::Single { type_ns_only: true, .. } => {
suggestion = Some(format!("self as {}", suggested_name))
suggestion = Some(format!("self as {suggested_name}"))
}
ImportKind::Single { source, .. } => {
if let Some(pos) =
@ -602,11 +602,11 @@ impl<'a, 'tcx> Resolver<'a, 'tcx> {
let sugg_msg = "try using a local generic parameter instead";
let name = self.tcx.item_name(def_id);
let (span, snippet) = if span.is_empty() {
let snippet = format!("<{}>", name);
let snippet = format!("<{name}>");
(span, snippet)
} else {
let span = sm.span_through_char(span, '<').shrink_to_hi();
let snippet = format!("{}, ", name);
let snippet = format!("{name}, ");
(span, snippet)
};
// Suggest the modification to the user
@ -667,7 +667,7 @@ impl<'a, 'tcx> Resolver<'a, 'tcx> {
name,
);
for sp in target_sp {
err.span_label(sp, format!("pattern doesn't bind `{}`", name));
err.span_label(sp, format!("pattern doesn't bind `{name}`"));
}
for sp in origin_sp {
err.span_label(sp, "variable not in all patterns");
@ -694,8 +694,7 @@ impl<'a, 'tcx> Resolver<'a, 'tcx> {
if import_suggestions.is_empty() {
let help_msg = format!(
"if you meant to match on a variant or a `const` item, consider \
making the path in the pattern qualified: `path::to::ModOrType::{}`",
name,
making the path in the pattern qualified: `path::to::ModOrType::{name}`",
);
err.span_help(span, help_msg);
}
@ -953,8 +952,7 @@ impl<'a, 'tcx> Resolver<'a, 'tcx> {
let mut err = self.tcx.sess.struct_span_err_with_code(
span,
format!(
"item `{}` is an associated {}, which doesn't match its trait `{}`",
name, kind, trait_path,
"item `{name}` is an associated {kind}, which doesn't match its trait `{trait_path}`",
),
code,
);
@ -1427,10 +1425,10 @@ impl<'a, 'tcx> Resolver<'a, 'tcx> {
"a function-like macro".to_string()
}
Res::Def(DefKind::Macro(MacroKind::Attr), _) | Res::NonMacroAttr(..) => {
format!("an attribute: `#[{}]`", ident)
format!("an attribute: `#[{ident}]`")
}
Res::Def(DefKind::Macro(MacroKind::Derive), _) => {
format!("a derive macro: `#[derive({})]`", ident)
format!("a derive macro: `#[derive({ident})]`")
}
Res::ToolMod => {
// Don't confuse the user with tool modules.
@ -1451,7 +1449,7 @@ impl<'a, 'tcx> Resolver<'a, 'tcx> {
if !import.span.is_dummy() {
err.span_note(
import.span,
format!("`{}` is imported here, but it is {}", ident, desc),
format!("`{ident}` is imported here, but it is {desc}"),
);
// Silence the 'unused import' warning we might get,
// since this diagnostic already covers that import.
@ -1459,7 +1457,7 @@ impl<'a, 'tcx> Resolver<'a, 'tcx> {
return;
}
}
err.note(format!("`{}` is in scope, but it is {}", ident, desc));
err.note(format!("`{ident}` is in scope, but it is {desc}"));
return;
}
}
@ -1597,7 +1595,7 @@ impl<'a, 'tcx> Resolver<'a, 'tcx> {
.enumerate()
.map(|(i, help_msg)| {
let or = if i == 0 { "" } else { "or " };
format!("{}{}", or, help_msg)
format!("{or}{help_msg}")
})
.collect::<Vec<_>>(),
)
@ -1655,7 +1653,7 @@ impl<'a, 'tcx> Resolver<'a, 'tcx> {
let descr = get_descr(binding);
let mut err =
struct_span_err!(self.tcx.sess, ident.span, E0603, "{} `{}` is private", descr, ident);
err.span_label(ident.span, format!("private {}", descr));
err.span_label(ident.span, format!("private {descr}"));
if let Some((this_res, outer_ident)) = outermost_res {
let import_suggestions = self.lookup_import_candidates(
@ -1840,7 +1838,7 @@ impl<'a, 'tcx> Resolver<'a, 'tcx> {
_ => format!("`{parent}`"),
};
let mut msg = format!("could not find `{}` in {}", ident, parent);
let mut msg = format!("could not find `{ident}` in {parent}");
if ns == TypeNS || ns == ValueNS {
let ns_to_try = if ns == TypeNS { ValueNS } else { TypeNS };
let binding = if let Some(module) = module {
@ -1955,12 +1953,12 @@ impl<'a, 'tcx> Resolver<'a, 'tcx> {
let suggestion = match_span.map(|span| {
(
vec![(span, String::from(""))],
format!("`{}` is defined here, but is not a type", ident),
format!("`{ident}` is defined here, but is not a type"),
Applicability::MaybeIncorrect,
)
});
(format!("use of undeclared type `{}`", ident), suggestion)
(format!("use of undeclared type `{ident}`"), suggestion)
} else {
let mut suggestion = None;
if ident.name == sym::alloc {
@ -1982,7 +1980,7 @@ impl<'a, 'tcx> Resolver<'a, 'tcx> {
},
)
});
(format!("use of undeclared crate or module `{}`", ident), suggestion)
(format!("use of undeclared crate or module `{ident}`"), suggestion)
}
}
@ -2166,16 +2164,16 @@ impl<'a, 'tcx> Resolver<'a, 'tcx> {
let module_name = crate_module.kind.name().unwrap();
let import_snippet = match import.kind {
ImportKind::Single { source, target, .. } if source != target => {
format!("{} as {}", source, target)
format!("{source} as {target}")
}
_ => format!("{}", ident),
_ => format!("{ident}"),
};
let mut corrections: Vec<(Span, String)> = Vec::new();
if !import.is_nested() {
// Assume this is the easy case of `use issue_59764::foo::makro;` and just remove
// intermediate segments.
corrections.push((import.span, format!("{}::{}", module_name, import_snippet)));
corrections.push((import.span, format!("{module_name}::{import_snippet}")));
} else {
// Find the binding span (and any trailing commas and spaces).
// ie. `use a::b::{c, d, e};`
@ -2242,11 +2240,11 @@ impl<'a, 'tcx> Resolver<'a, 'tcx> {
start_point,
if has_nested {
// In this case, `start_snippet` must equal '{'.
format!("{}{}, ", start_snippet, import_snippet)
format!("{start_snippet}{import_snippet}, ")
} else {
// In this case, add a `{`, then the moved import, then whatever
// was there before.
format!("{{{}, {}", import_snippet, start_snippet)
format!("{{{import_snippet}, {start_snippet}")
},
));
@ -2663,9 +2661,9 @@ fn show_candidates(
"item"
};
let plural_descr =
if descr.ends_with('s') { format!("{}es", descr) } else { format!("{}s", descr) };
if descr.ends_with('s') { format!("{descr}es") } else { format!("{descr}s") };
let mut msg = format!("{}these {} exist but are inaccessible", prefix, plural_descr);
let mut msg = format!("{prefix}these {plural_descr} exist but are inaccessible");
let mut has_colon = false;
let mut spans = Vec::new();
@ -2686,7 +2684,7 @@ fn show_candidates(
let mut multi_span = MultiSpan::from_spans(spans.iter().map(|(_, sp)| *sp).collect());
for (name, span) in spans {
multi_span.push_span_label(span, format!("`{}`: not accessible", name));
multi_span.push_span_label(span, format!("`{name}`: not accessible"));
}
for note in inaccessible_path_strings.iter().flat_map(|cand| cand.3.as_ref()) {

6
compiler/rustc_resolve/src/ident.rs
View File

@ -1445,12 +1445,12 @@ impl<'a, 'tcx> Resolver<'a, 'tcx> {
let name_str = if name == kw::PathRoot {
"crate root".to_string()
} else {
format!("`{}`", name)
format!("`{name}`")
};
let label = if segment_idx == 1 && path[0].ident.name == kw::PathRoot {
format!("global paths cannot start with {}", name_str)
format!("global paths cannot start with {name_str}")
} else {
format!("{} in paths can only be used in start position", name_str)
format!("{name_str} in paths can only be used in start position")
};
(label, None)
});

15
compiler/rustc_resolve/src/imports.rs
View File

@ -1153,18 +1153,18 @@ impl<'a, 'tcx> Resolver<'a, 'tcx> {
ModuleOrUniformRoot::Module(module) => {
let module_str = module_to_string(module);
if let Some(module_str) = module_str {
format!("no `{}` in `{}`", ident, module_str)
format!("no `{ident}` in `{module_str}`")
} else {
format!("no `{}` in the root", ident)
format!("no `{ident}` in the root")
}
}
_ => {
if !ident.is_path_segment_keyword() {
format!("no external crate `{}`", ident)
format!("no external crate `{ident}`")
} else {
// HACK(eddyb) this shows up for `self` & `super`, which
// should work instead - for now keep the same error message.
format!("no `{}` in the root", ident)
format!("no `{ident}` in the root")
}
}
};
@ -1212,10 +1212,9 @@ impl<'a, 'tcx> Resolver<'a, 'tcx> {
let (ns, binding) = reexport_error.unwrap();
if pub_use_of_private_extern_crate_hack(import, binding) {
let msg = format!(
"extern crate `{}` is private, and cannot be \
"extern crate `{ident}` is private, and cannot be \
re-exported (error E0365), consider declaring with \
`pub`",
ident
`pub`"
);
self.lint_buffer.buffer_lint(
PUB_USE_OF_PRIVATE_EXTERN_CRATE,
@ -1355,7 +1354,7 @@ impl<'a, 'tcx> Resolver<'a, 'tcx> {
UNUSED_IMPORTS,
id,
import.span,
format!("the item `{}` is imported redundantly", ident),
format!("the item `{ident}` is imported redundantly"),
BuiltinLintDiagnostics::RedundantImport(redundant_spans, ident),
);
}

8
compiler/rustc_resolve/src/late.rs
View File

@ -1917,10 +1917,7 @@ impl<'a: 'ast, 'b, 'ast, 'tcx> LateResolutionVisitor<'a, 'b, 'ast, 'tcx> {
candidate: LifetimeElisionCandidate,
) {
if let Some(prev_res) = self.r.lifetimes_res_map.insert(id, res) {
panic!(
"lifetime {:?} resolved multiple times ({:?} before, {:?} now)",
id, prev_res, res
)
panic!("lifetime {id:?} resolved multiple times ({prev_res:?} before, {res:?} now)")
}
match res {
LifetimeRes::Param { .. } | LifetimeRes::Fresh { .. } | LifetimeRes::Static => {
@ -1936,8 +1933,7 @@ impl<'a: 'ast, 'b, 'ast, 'tcx> LateResolutionVisitor<'a, 'b, 'ast, 'tcx> {
fn record_lifetime_param(&mut self, id: NodeId, res: LifetimeRes) {
if let Some(prev_res) = self.r.lifetimes_res_map.insert(id, res) {
panic!(
"lifetime parameter {:?} resolved multiple times ({:?} before, {:?} now)",
id, prev_res, res
"lifetime parameter {id:?} resolved multiple times ({prev_res:?} before, {res:?} now)"
)
}
}

62
compiler/rustc_resolve/src/late/diagnostics.rs
View File

@ -585,13 +585,13 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
let others = match enum_candidates.len() {
1 => String::new(),
2 => " and 1 other".to_owned(),
n => format!(" and {} others", n),
n => format!(" and {n} others"),
};
format!("there is an enum variant `{}`{}; ", enum_candidates[0].0, others)
} else {
String::new()
};
let msg = format!("{}try using the variant's enum", preamble);
let msg = format!("{preamble}try using the variant's enum");
err.span_suggestions(
span,
@ -696,7 +696,7 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
ident.name == path[0].ident.name {
err.span_help(
ident.span,
format!("the binding `{}` is available in a different scope in the same function", path_str),
format!("the binding `{path_str}` is available in a different scope in the same function"),
);
return (true, candidates);
}
@ -858,7 +858,7 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
for label_rib in &self.label_ribs {
for (label_ident, node_id) in &label_rib.bindings {
let ident = path.last().unwrap().ident;
if format!("'{}", ident) == label_ident.to_string() {
if format!("'{ident}") == label_ident.to_string() {
err.span_label(label_ident.span, "a label with a similar name exists");
if let PathSource::Expr(Some(Expr {
kind: ExprKind::Break(None, Some(_)),
@ -983,7 +983,7 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
if let Some(ident) = fn_kind.ident() {
err.span_label(
ident.span,
format!("this function {} have a `self` parameter", doesnt),
format!("this function {doesnt} have a `self` parameter"),
);
}
}
@ -1164,7 +1164,7 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
};
err.span_suggestion_verbose(
*where_span,
format!("constrain the associated type to `{}`", ident),
format!("constrain the associated type to `{ident}`"),
where_bound_predicate_to_string(&new_where_bound_predicate),
Applicability::MaybeIncorrect,
);
@ -1338,8 +1338,7 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
span, // Note the parentheses surrounding the suggestion below
format!(
"you might want to surround a struct literal with parentheses: \
`({} {{ /* fields */ }})`?",
path_str
`({path_str} {{ /* fields */ }})`?"
),
);
}
@ -1373,7 +1372,7 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
.map(|(idx, new)| (new, old_fields.get(idx)))
.map(|(new, old)| {
let new = new.to_ident_string();
if let Some(Some(old)) = old && new != *old { format!("{}: {}", new, old) } else { new }
if let Some(Some(old)) = old && new != *old { format!("{new}: {old}") } else { new }
})
.collect::<Vec<String>>()
} else {
@ -1390,7 +1389,7 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
};
err.span_suggestion(
span,
format!("use struct {} syntax instead", descr),
format!("use struct {descr} syntax instead"),
format!("{path_str} {{{pad}{fields}{pad}}}"),
applicability,
);
@ -1584,7 +1583,7 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
err.span_suggestion(
span,
"use the tuple variant pattern syntax instead",
format!("{}({})", path_str, fields),
format!("{path_str}({fields})"),
Applicability::HasPlaceholders,
);
}
@ -1994,9 +1993,9 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
if !suggestable_variants.is_empty() {
let msg = if non_suggestable_variant_count == 0 && suggestable_variants.len() == 1 {
format!("try {} the enum's variant", source_msg)
format!("try {source_msg} the enum's variant")
} else {
format!("try {} one of the enum's variants", source_msg)
format!("try {source_msg} one of the enum's variants")
};
err.span_suggestions(
@ -2009,19 +2008,15 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
// If the enum has no tuple variants..
if non_suggestable_variant_count == variants.len() {
err.help(format!("the enum has no tuple variants {}", source_msg));
err.help(format!("the enum has no tuple variants {source_msg}"));
}
// If there are also non-tuple variants..
if non_suggestable_variant_count == 1 {
err.help(format!(
"you might have meant {} the enum's non-tuple variant",
source_msg
));
err.help(format!("you might have meant {source_msg} the enum's non-tuple variant"));
} else if non_suggestable_variant_count >= 1 {
err.help(format!(
"you might have meant {} one of the enum's non-tuple variants",
source_msg
"you might have meant {source_msg} one of the enum's non-tuple variants"
));
}
} else {
@ -2041,7 +2036,7 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
.map(|(variant, _, kind)| (path_names_to_string(variant), kind))
.map(|(variant, kind)| match kind {
CtorKind::Const => variant,
CtorKind::Fn => format!("({}())", variant),
CtorKind::Fn => format!("({variant}())"),
})
.collect::<Vec<_>>();
let no_suggestable_variant = suggestable_variants.is_empty();
@ -2066,7 +2061,7 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
.filter(|(_, def_id, kind)| needs_placeholder(*def_id, *kind))
.map(|(variant, _, kind)| (path_names_to_string(variant), kind))
.filter_map(|(variant, kind)| match kind {
CtorKind::Fn => Some(format!("({}(/* fields */))", variant)),
CtorKind::Fn => Some(format!("({variant}(/* fields */))")),
_ => None,
})
.collect::<Vec<_>>();
@ -2361,8 +2356,7 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
err.span_label(
span,
format!(
"lifetime `{}` is missing in item created through this procedural macro",
name,
"lifetime `{name}` is missing in item created through this procedural macro",
),
);
continue;
@ -2406,7 +2400,7 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
);
} else if let Some(name) = name {
let message =
Cow::from(format!("consider introducing lifetime `{}` here", name));
Cow::from(format!("consider introducing lifetime `{name}` here"));
should_continue = suggest(err, false, span, message, sugg);
} else {
let message = Cow::from("consider introducing a named lifetime parameter");
@ -2550,7 +2544,7 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
}
let help_name = if let Some(ident) = ident {
format!("`{}`", ident)
format!("`{ident}`")
} else {
format!("argument {}", index + 1)
};
@ -2558,7 +2552,7 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
if lifetime_count == 1 {
m.push_str(&help_name[..])
} else {
m.push_str(&format!("one of {}'s {} lifetimes", help_name, lifetime_count)[..])
m.push_str(&format!("one of {help_name}'s {lifetime_count} lifetimes")[..])
}
}
@ -2588,14 +2582,12 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
} else if num_params == 1 {
err.help(format!(
"this function's return type contains a borrowed value, \
but the signature does not say which {} it is borrowed from",
m
but the signature does not say which {m} it is borrowed from"
));
} else {
err.help(format!(
"this function's return type contains a borrowed value, \
but the signature does not say whether it is borrowed from {}",
m
but the signature does not say whether it is borrowed from {m}"
));
}
}
@ -2614,7 +2606,7 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
}
MissingLifetimeKind::Ampersand => {
debug_assert_eq!(lt.count, 1);
(lt.span.shrink_to_hi(), format!("{} ", existing_name))
(lt.span.shrink_to_hi(), format!("{existing_name} "))
}
MissingLifetimeKind::Comma => {
let sugg: String = std::iter::repeat([existing_name.as_str(), ", "])
@ -2661,7 +2653,7 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
}
1 => {
err.multipart_suggestion_verbose(
format!("consider using the `{}` lifetime", existing_name),
format!("consider using the `{existing_name}` lifetime"),
spans_suggs,
Applicability::MaybeIncorrect,
);
@ -2778,9 +2770,9 @@ pub(super) fn signal_label_shadowing(sess: &Session, orig: Span, shadower: Ident
let shadower = shadower.span;
let mut err = sess.struct_span_warn(
shadower,
format!("label name `{}` shadows a label name that is already in scope", name),
format!("label name `{name}` shadows a label name that is already in scope"),
);
err.span_label(orig, "first declared here");
err.span_label(shadower, format!("label `{}` already in scope", name));
err.span_label(shadower, format!("label `{name}` already in scope"));
err.emit();
}

4
compiler/rustc_resolve/src/lib.rs
View File

@ -1168,7 +1168,7 @@ impl<'tcx> Resolver<'_, 'tcx> {
}
fn local_def_id(&self, node: NodeId) -> LocalDefId {
self.opt_local_def_id(node).unwrap_or_else(|| panic!("no entry for node id: `{:?}`", node))
self.opt_local_def_id(node).unwrap_or_else(|| panic!("no entry for node id: `{node:?}`"))
}
/// Adds a definition with a parent definition.
@ -1834,7 +1834,7 @@ impl<'a, 'tcx> Resolver<'a, 'tcx> {
fn record_partial_res(&mut self, node_id: NodeId, resolution: PartialRes) {
debug!("(recording res) recording {:?} for {}", resolution, node_id);
if let Some(prev_res) = self.partial_res_map.insert(node_id, resolution) {
panic!("path resolved multiple times ({:?} before, {:?} now)", prev_res, resolution);
panic!("path resolved multiple times ({prev_res:?} before, {resolution:?} now)");
}
}

6
compiler/rustc_resolve/src/macros.rs
View File

@ -207,7 +207,7 @@ impl<'a, 'tcx> ResolverExpand for Resolver<'a, 'tcx> {
self.tcx
.sess
.diagnostic()
.bug(format!("built-in macro `{}` was already registered", name));
.bug(format!("built-in macro `{name}` was already registered"));
}
}
@ -570,7 +570,7 @@ impl<'a, 'tcx> Resolver<'a, 'tcx> {
}
let mut err = self.tcx.sess.create_err(err);
err.span_label(path.span, format!("not {} {}", article, expected));
err.span_label(path.span, format!("not {article} {expected}"));
err.emit();
@ -906,7 +906,7 @@ impl<'a, 'tcx> Resolver<'a, 'tcx> {
if macro_kind.is_some() && sub_namespace_match(macro_kind, Some(MacroKind::Attr)) {
self.tcx.sess.span_err(
ident.span,
format!("name `{}` is reserved in attribute namespace", ident),
format!("name `{ident}` is reserved in attribute namespace"),
);
}
}

8
compiler/rustc_smir/src/rustc_smir/mod.rs
View File

@ -512,7 +512,7 @@ impl<'tcx> Stable<'tcx> for mir::InlineAsmOperand<'tcx> {
| InlineAsmOperand::SymStatic { .. } => (None, None),
};
stable_mir::mir::InlineAsmOperand { in_value, out_place, raw_rpr: format!("{:?}", self) }
stable_mir::mir::InlineAsmOperand { in_value, out_place, raw_rpr: format!("{self:?}") }
}
}
@ -561,10 +561,10 @@ impl<'tcx> Stable<'tcx> for mir::Terminator<'tcx> {
},
InlineAsm { template, operands, options, line_spans, destination, unwind } => {
Terminator::InlineAsm {
template: format!("{:?}", template),
template: format!("{template:?}"),
operands: operands.iter().map(|operand| operand.stable(tables)).collect(),
options: format!("{:?}", options),
line_spans: format!("{:?}", line_spans),
options: format!("{options:?}"),
line_spans: format!("{line_spans:?}"),
destination: destination.map(|d| d.as_usize()),
unwind: unwind.stable(tables),
}

2
compiler/rustc_span/src/lib.rs
View File

@ -605,7 +605,7 @@ impl Span {
// FIXME: If this span comes from a `derive` macro but it points at code the user wrote,
// the callsite span and the span will be pointing at different places. It also means that
// we can safely provide suggestions on this span.
|| (matches!(self.ctxt().outer_expn_data().kind, ExpnKind::Macro(MacroKind::Derive, _))
|| (self.in_derive_expansion()
&& self.parent_callsite().map(|p| (p.lo(), p.hi())) != Some((self.lo(), self.hi())))
}

8
compiler/rustc_trait_selection/src/traits/auto_trait.rs
View File

@ -161,7 +161,7 @@ impl<'tcx> AutoTraitFinder<'tcx> {
let (full_env, full_user_env) = self
.evaluate_predicates(&infcx, trait_did, ty, new_env, user_env, &mut fresh_preds)
.unwrap_or_else(|| {
panic!("Failed to fully process: {:?} {:?} {:?}", ty, trait_did, orig_env)
panic!("Failed to fully process: {ty:?} {trait_did:?} {orig_env:?}")
});
debug!(
@ -178,7 +178,7 @@ impl<'tcx> AutoTraitFinder<'tcx> {
ocx.register_bound(ObligationCause::dummy(), full_env, ty, trait_did);
let errors = ocx.select_all_or_error();
if !errors.is_empty() {
panic!("Unable to fulfill trait {:?} for '{:?}': {:?}", trait_did, ty, errors);
panic!("Unable to fulfill trait {trait_did:?} for '{ty:?}': {errors:?}");
}
let outlives_env = OutlivesEnvironment::new(full_env);
@ -339,7 +339,7 @@ impl<'tcx> AutoTraitFinder<'tcx> {
return None;
}
}
_ => panic!("Unexpected error for '{:?}': {:?}", ty, result),
_ => panic!("Unexpected error for '{ty:?}': {result:?}"),
};
let normalized_preds =
@ -747,7 +747,7 @@ impl<'tcx> AutoTraitFinder<'tcx> {
// subobligations or getting an error) when we started off with
// inference variables
if p.term().skip_binder().has_infer_types() {
panic!("Unexpected result when selecting {:?} {:?}", ty, obligation)
panic!("Unexpected result when selecting {ty:?} {obligation:?}")
}
}
}

2
compiler/rustc_trait_selection/src/traits/coherence.rs
View File

@ -357,7 +357,7 @@ fn impl_intersection_has_negative_obligation(
Err(err) => {
tcx.sess.delay_span_bug(
tcx.def_span(impl1_def_id),
format!("failed to fully normalize {:?}: {:?}", impl1_def_id, err),
format!("failed to fully normalize {impl1_def_id:?}: {err:?}"),
);
return false;
}

57
compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs
View File

@ -226,7 +226,7 @@ impl<'tcx> InferCtxtExt<'tcx> for InferCtxt<'tcx> {
let span = variant_data.ctor_hir_id().map_or(DUMMY_SP, |id| hir.span(id));
(span, None, vec![ArgKind::empty(); variant_data.fields().len()])
}
_ => panic!("non-FnLike node found: {:?}", node),
_ => panic!("non-FnLike node found: {node:?}"),
})
}
@ -273,10 +273,10 @@ impl<'tcx> InferCtxtExt<'tcx> for InferCtxt<'tcx> {
found_str,
);
err.span_label(span, format!("expected {} that takes {}", kind, expected_str));
err.span_label(span, format!("expected {kind} that takes {expected_str}"));
if let Some(found_span) = found_span {
err.span_label(found_span, format!("takes {}", found_str));
err.span_label(found_span, format!("takes {found_str}"));
// Suggest to take and ignore the arguments with expected_args_length `_`s if
// found arguments is empty (assume the user just wants to ignore args in this case).
@ -289,7 +289,7 @@ impl<'tcx> InferCtxtExt<'tcx> for InferCtxt<'tcx> {
"consider changing the closure to take and ignore the expected argument{}",
pluralize!(expected_args.len())
),
format!("|{}|", underscores),
format!("|{underscores}|"),
Applicability::MachineApplicable,
);
}
@ -304,7 +304,7 @@ impl<'tcx> InferCtxtExt<'tcx> for InferCtxt<'tcx> {
err.span_suggestion_verbose(
found_span,
"change the closure to take multiple arguments instead of a single tuple",
format!("|{}|", sugg),
format!("|{sugg}|"),
Applicability::MachineApplicable,
);
}
@ -703,9 +703,9 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
.get_parent_trait_ref(obligation.cause.code())
.map(|(t, s)| {
(
format!(" in `{}`", t),
format!("within `{}`, ", t),
s.map(|s| (format!("within this `{}`", t), s)),
format!(" in `{t}`"),
format!("within `{t}`, "),
s.map(|s| (format!("within this `{t}`"), s)),
)
})
.unwrap_or_default();
@ -1070,7 +1070,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
// which bounds actually failed to hold.
self.tcx.sess.struct_span_err(
span,
format!("the type `{}` is not well-formed", ty),
format!("the type `{ty}` is not well-formed"),
)
}
}
@ -1108,7 +1108,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
ty::PredicateKind::Clause(ty::ClauseKind::ConstArgHasType(ct, ty)) => {
let mut diag = self.tcx.sess.struct_span_err(
span,
format!("the constant `{}` is not of type `{}`", ct, ty),
format!("the constant `{ct}` is not of type `{ty}`"),
);
self.note_type_err(
&mut diag,
@ -1980,7 +1980,7 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
if all_traits_equal {
format!("\n {}", c.self_ty())
} else {
format!("\n {}", c)
format!("\n {c}")
}
})
.collect();
@ -2178,10 +2178,8 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
format!("trait impl{} with same name found", pluralize!(trait_impls.len())),
);
let trait_crate = self.tcx.crate_name(trait_with_same_path.krate);
let crate_msg = format!(
"perhaps two different versions of crate `{}` are being used?",
trait_crate
);
let crate_msg =
format!("perhaps two different versions of crate `{trait_crate}` are being used?");
err.note(crate_msg);
suggested = true;
}
@ -2309,7 +2307,7 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
err.cancel();
return;
}
err.note(format!("cannot satisfy `{}`", predicate));
err.note(format!("cannot satisfy `{predicate}`"));
let impl_candidates = self
.find_similar_impl_candidates(predicate.to_opt_poly_trait_pred().unwrap());
if impl_candidates.len() < 10 {
@ -2373,7 +2371,7 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
if let Some(local_def_id) = data.trait_ref.def_id.as_local()
&& let Some(hir::Node::Item(hir::Item { ident: trait_name, kind: hir::ItemKind::Trait(_, _, _, _, trait_item_refs), .. })) = self.tcx.hir().find_by_def_id(local_def_id)
&& let Some(method_ref) = trait_item_refs.iter().find(|item_ref| item_ref.ident == *assoc_item_name) {
err.span_label(method_ref.span, format!("`{}::{}` defined here", trait_name, assoc_item_name));
err.span_label(method_ref.span, format!("`{trait_name}::{assoc_item_name}` defined here"));
}
err.span_label(span, format!("cannot {verb} associated {noun} of trait"));
@ -2474,7 +2472,7 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
ErrorCode::E0284,
true,
);
err.note(format!("cannot satisfy `{}`", predicate));
err.note(format!("cannot satisfy `{predicate}`"));
err
} else {
// If we can't find a substitution, just print a generic error
@ -2485,7 +2483,7 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
"type annotations needed: cannot satisfy `{}`",
predicate,
);
err.span_label(span, format!("cannot satisfy `{}`", predicate));
err.span_label(span, format!("cannot satisfy `{predicate}`"));
err
}
}
@ -2513,7 +2511,7 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
"type annotations needed: cannot satisfy `{}`",
predicate,
);
err.span_label(span, format!("cannot satisfy `{}`", predicate));
err.span_label(span, format!("cannot satisfy `{predicate}`"));
err
}
}
@ -2528,7 +2526,7 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
"type annotations needed: cannot satisfy `{}`",
predicate,
);
err.span_label(span, format!("cannot satisfy `{}`", predicate));
err.span_label(span, format!("cannot satisfy `{predicate}`"));
err
}
};
@ -2565,7 +2563,7 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
}
}
}
let mut crate_names: Vec<_> = crates.iter().map(|n| format!("`{}`", n)).collect();
let mut crate_names: Vec<_> = crates.iter().map(|n| format!("`{n}`")).collect();
crate_names.sort();
crate_names.dedup();
post.sort();
@ -2592,7 +2590,7 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
predicate
);
let post = if post.len() > 1 || (post.len() == 1 && post[0].contains('\n')) {
format!(":\n{}", post.iter().map(|p| format!("- {}", p)).collect::<Vec<_>>().join("\n"),)
format!(":\n{}", post.iter().map(|p| format!("- {p}")).collect::<Vec<_>>().join("\n"),)
} else if post.len() == 1 {
format!(": `{}`", post[0])
} else {
@ -2601,7 +2599,7 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
match (spans.len(), crates.len(), crate_names.len()) {
(0, 0, 0) => {
err.note(format!("cannot satisfy `{}`", predicate));
err.note(format!("cannot satisfy `{predicate}`"));
}
(0, _, 1) => {
err.note(format!("{} in the `{}` crate{}", msg, crates[0], post,));
@ -2772,7 +2770,7 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
err.span_suggestion_verbose(
span,
"consider relaxing the implicit `Sized` restriction",
format!("{} ?Sized", separator),
format!("{separator} ?Sized"),
Applicability::MachineApplicable,
);
}
@ -2863,7 +2861,7 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
}
})
.unwrap_or_else(|| {
format!("the trait bound `{}` is not satisfied{}", trait_predicate, post_message)
format!("the trait bound `{trait_predicate}` is not satisfied{post_message}")
})
}
@ -3151,11 +3149,11 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
err.span_label(
closure_span,
format!("this closure implements `{}`, not `{}`", found_kind, kind),
format!("this closure implements `{found_kind}`, not `{kind}`"),
);
err.span_label(
obligation.cause.span,
format!("the requirement to implement `{}` derives from here", kind),
format!("the requirement to implement `{kind}` derives from here"),
);
// Additional context information explaining why the closure only implements
@ -3382,8 +3380,7 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
let const_span = self.tcx.def_span(uv.def);
match self.tcx.sess.source_map().span_to_snippet(const_span) {
Ok(snippet) => err.help(format!(
"try adding a `where` bound using this expression: `where [(); {}]:`",
snippet
"try adding a `where` bound using this expression: `where [(); {snippet}]:`"
)),
_ => err.help("consider adding a `where` bound using this expression"),
};

8
compiler/rustc_trait_selection/src/traits/error_reporting/on_unimplemented.rs
View File

@ -170,7 +170,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
if let Some(k) = obligation.cause.span.desugaring_kind() {
flags.push((sym::from_desugaring, None));
flags.push((sym::from_desugaring, Some(format!("{:?}", k))));
flags.push((sym::from_desugaring, Some(format!("{k:?}"))));
}
if let ObligationCauseCode::MainFunctionType = obligation.cause.code() {
@ -258,9 +258,9 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
if let ty::Array(aty, len) = self_ty.kind() {
flags.push((sym::_Self, Some("[]".to_string())));
let len = len.try_to_value().and_then(|v| v.try_to_target_usize(self.tcx));
flags.push((sym::_Self, Some(format!("[{}; _]", aty))));
flags.push((sym::_Self, Some(format!("[{aty}; _]"))));
if let Some(n) = len {
flags.push((sym::_Self, Some(format!("[{}; {}]", aty, n))));
flags.push((sym::_Self, Some(format!("[{aty}; {n}]"))));
}
if let Some(def) = aty.ty_adt_def() {
// We also want to be able to select the array's type's original
@ -579,7 +579,7 @@ impl<'tcx> OnUnimplementedFormatString {
"there is no parameter `{}` on {}",
s,
if trait_def_id == item_def_id {
format!("trait `{}`", trait_name)
format!("trait `{trait_name}`")
} else {
"impl".to_string()
}

152
compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs
View File

@ -479,13 +479,13 @@ fn suggest_restriction<'tcx>(
.visit_ty(input);
}
// The type param `T: Trait` we will suggest to introduce.
let type_param = format!("{}: {}", type_param_name, bound_str);
let type_param = format!("{type_param_name}: {bound_str}");
let mut sugg = vec![
if let Some(span) = hir_generics.span_for_param_suggestion() {
(span, format!(", {}", type_param))
(span, format!(", {type_param}"))
} else {
(hir_generics.span, format!("<{}>", type_param))
(hir_generics.span, format!("<{type_param}>"))
},
// `fn foo(t: impl Trait)`
// ^ suggest `where <T as Trait>::A: Bound`
@ -530,7 +530,7 @@ fn suggest_restriction<'tcx>(
err.span_suggestion_verbose(
sp,
format!("consider further restricting {}", msg),
format!("consider further restricting {msg}"),
suggestion,
Applicability::MachineApplicable,
);
@ -694,7 +694,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
term
);
} else {
constraint.push_str(&format!("<{} = {}>", name, term));
constraint.push_str(&format!("<{name} = {term}>"));
}
}
@ -1016,7 +1016,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
let name = self.tcx.def_path_str(def_id);
err.span_label(
self.tcx.def_span(def_id),
format!("consider calling the constructor for `{}`", name),
format!("consider calling the constructor for `{name}`"),
);
name
}
@ -1395,7 +1395,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
// Because of this, we modify the error to refer to the original obligation and
// return early in the caller.
let msg = format!("the trait bound `{}` is not satisfied", old_pred);
let msg = format!("the trait bound `{old_pred}` is not satisfied");
if has_custom_message {
err.note(msg);
} else {
@ -1435,7 +1435,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
err.multipart_suggestion_verbose(
sugg_msg,
vec![
(span.shrink_to_lo(), format!("({}", sugg_prefix)),
(span.shrink_to_lo(), format!("({sugg_prefix}")),
(span.shrink_to_hi(), ")".to_string()),
],
Applicability::MaybeIncorrect,
@ -1471,7 +1471,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
vec![(span.shrink_to_lo(), sugg_prefix)]
} else {
vec![
(span.shrink_to_lo(), format!("{}(", sugg_prefix)),
(span.shrink_to_lo(), format!("{sugg_prefix}(")),
(span.shrink_to_hi(), ")".to_string()),
]
};
@ -1702,8 +1702,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
hir.get_if_local(*def_id)
{
let msg = format!(
"alternatively, consider making `fn {}` asynchronous",
ident
"alternatively, consider making `fn {ident}` asynchronous"
);
if vis_span.is_empty() {
err.span_suggestion_verbose(
@ -1954,10 +1953,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
// don't print out the [type error] here
err.delay_as_bug();
} else {
err.span_label(
expr.span,
format!("this returned value is of type `{}`", ty),
);
err.span_label(expr.span, format!("this returned value is of type `{ty}`"));
}
}
}
@ -2458,8 +2454,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
err.clear_code();
err.set_primary_message(format!(
"{} cannot be {} between threads safely",
future_or_generator, trait_verb
"{future_or_generator} cannot be {trait_verb} between threads safely"
));
let original_span = err.span.primary_span().unwrap();
@ -2468,7 +2463,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
let message = outer_generator
.and_then(|generator_did| {
Some(match self.tcx.generator_kind(generator_did).unwrap() {
GeneratorKind::Gen => format!("generator is not {}", trait_name),
GeneratorKind::Gen => format!("generator is not {trait_name}"),
GeneratorKind::Async(AsyncGeneratorKind::Fn) => self
.tcx
.parent(generator_did)
@ -2476,73 +2471,73 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
.map(|parent_did| hir.local_def_id_to_hir_id(parent_did))
.and_then(|parent_hir_id| hir.opt_name(parent_hir_id))
.map(|name| {
format!("future returned by `{}` is not {}", name, trait_name)
format!("future returned by `{name}` is not {trait_name}")
})?,
GeneratorKind::Async(AsyncGeneratorKind::Block) => {
format!("future created by async block is not {}", trait_name)
format!("future created by async block is not {trait_name}")
}
GeneratorKind::Async(AsyncGeneratorKind::Closure) => {
format!("future created by async closure is not {}", trait_name)
format!("future created by async closure is not {trait_name}")
}
})
})
.unwrap_or_else(|| format!("{} is not {}", future_or_generator, trait_name));
.unwrap_or_else(|| format!("{future_or_generator} is not {trait_name}"));
span.push_span_label(original_span, message);
err.set_span(span);
format!("is not {}", trait_name)
format!("is not {trait_name}")
} else {
format!("does not implement `{}`", trait_pred.print_modifiers_and_trait_path())
};
let mut explain_yield =
|interior_span: Span, yield_span: Span, scope_span: Option<Span>| {
let mut span = MultiSpan::from_span(yield_span);
let snippet = match source_map.span_to_snippet(interior_span) {
// #70935: If snippet contains newlines, display "the value" instead
// so that we do not emit complex diagnostics.
Ok(snippet) if !snippet.contains('\n') => format!("`{}`", snippet),
_ => "the value".to_string(),
};
// note: future is not `Send` as this value is used across an await
// --> $DIR/issue-70935-complex-spans.rs:13:9
// |
// LL | baz(|| async {
// | ______________-
// | |
// | |
// LL | | foo(tx.clone());
// LL | | }).await;
// | | - ^^^^^^ await occurs here, with value maybe used later
// | |__________|
// | has type `closure` which is not `Send`
// note: value is later dropped here
// LL | | }).await;
// | | ^
//
span.push_span_label(
yield_span,
format!("{} occurs here, with {} maybe used later", await_or_yield, snippet),
);
span.push_span_label(
interior_span,
format!("has type `{}` which {}", target_ty, trait_explanation),
);
if let Some(scope_span) = scope_span {
let scope_span = source_map.end_point(scope_span);
let mut explain_yield = |interior_span: Span,
yield_span: Span,
scope_span: Option<Span>| {
let mut span = MultiSpan::from_span(yield_span);
let snippet = match source_map.span_to_snippet(interior_span) {
// #70935: If snippet contains newlines, display "the value" instead
// so that we do not emit complex diagnostics.
Ok(snippet) if !snippet.contains('\n') => format!("`{snippet}`"),
_ => "the value".to_string(),
};
// note: future is not `Send` as this value is used across an await
// --> $DIR/issue-70935-complex-spans.rs:13:9
// |
// LL | baz(|| async {
// | ______________-
// | |
// | |
// LL | | foo(tx.clone());
// LL | | }).await;
// | | - ^^^^^^ await occurs here, with value maybe used later
// | |__________|
// | has type `closure` which is not `Send`
// note: value is later dropped here
// LL | | }).await;
// | | ^
//
span.push_span_label(
yield_span,
format!("{await_or_yield} occurs here, with {snippet} maybe used later"),
);
span.push_span_label(
interior_span,
format!("has type `{target_ty}` which {trait_explanation}"),
);
if let Some(scope_span) = scope_span {
let scope_span = source_map.end_point(scope_span);
let msg = format!("{} is later dropped here", snippet);
span.push_span_label(scope_span, msg);
}
err.span_note(
let msg = format!("{snippet} is later dropped here");
span.push_span_label(scope_span, msg);
}
err.span_note(
span,
format!(
"{} {} as this value is used across {}",
future_or_generator, trait_explanation, an_await_or_yield
"{future_or_generator} {trait_explanation} as this value is used across {an_await_or_yield}"
),
);
};
};
match interior_or_upvar_span {
GeneratorInteriorOrUpvar::Interior(interior_span, interior_extra_info) => {
if let Some((scope_span, yield_span, expr, from_awaited_ty)) = interior_extra_info {
@ -2552,15 +2547,13 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
span.push_span_label(
await_span,
format!(
"await occurs here on type `{}`, which {}",
target_ty, trait_explanation
"await occurs here on type `{target_ty}`, which {trait_explanation}"
),
);
err.span_note(
span,
format!(
"future {not_trait} as it awaits another future which {not_trait}",
not_trait = trait_explanation
"future {trait_explanation} as it awaits another future which {trait_explanation}"
),
);
} else {
@ -2643,18 +2636,16 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
let ref_kind = if is_mut { "&mut" } else { "&" };
(
format!(
"has type `{}` which {}, because `{}` is not `{}`",
target_ty, trait_explanation, ref_ty, ref_ty_trait
"has type `{target_ty}` which {trait_explanation}, because `{ref_ty}` is not `{ref_ty_trait}`"
),
format!(
"captured value {} because `{}` references cannot be sent unless their referent is `{}`",
trait_explanation, ref_kind, ref_ty_trait
"captured value {trait_explanation} because `{ref_kind}` references cannot be sent unless their referent is `{ref_ty_trait}`"
),
)
}
None => (
format!("has type `{}` which {}", target_ty, trait_explanation),
format!("captured value {}", trait_explanation),
format!("has type `{target_ty}` which {trait_explanation}"),
format!("captured value {trait_explanation}"),
),
};
@ -2743,8 +2734,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
}
ObligationCauseCode::ObjectTypeBound(object_ty, region) => {
err.note(format!(
"required so that the lifetime bound of `{}` for `{}` is satisfied",
region, object_ty,
"required so that the lifetime bound of `{region}` for `{object_ty}` is satisfied",
));
}
ObligationCauseCode::ItemObligation(_)
@ -3064,7 +3054,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
let mut msg =
"required because it captures the following types: ".to_owned();
for ty in bound_tys.skip_binder() {
with_forced_trimmed_paths!(write!(msg, "`{}`, ", ty).unwrap());
with_forced_trimmed_paths!(write!(msg, "`{ty}`, ").unwrap());
}
err.note(msg.trim_end_matches(", ").to_string())
}
@ -3078,7 +3068,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
"required because it captures the following types: ".to_owned();
for bty in tcx.generator_hidden_types(*def_id) {
let ty = bty.instantiate(tcx, args);
write!(msg, "`{}`, ", ty).unwrap();
write!(msg, "`{ty}`, ").unwrap();
}
err.note(msg.trim_end_matches(", ").to_string())
}
@ -3513,7 +3503,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
trait_pred.skip_binder().self_ty(),
diagnostic_name,
),
format!("#[derive({})]\n", diagnostic_name),
format!("#[derive({diagnostic_name})]\n"),
Applicability::MaybeIncorrect,
);
}
@ -3999,7 +3989,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
.map(|trait_ref| trait_ref.trait_ref.self_ty())
.find(|t| is_slice(*t))
{
let msg = format!("convert the array to a `{}` slice instead", slice_ty);
let msg = format!("convert the array to a `{slice_ty}` slice instead");
if let Ok(snippet) = self.tcx.sess.source_map().span_to_snippet(span) {
let mut suggestions = vec![];

6
compiler/rustc_trait_selection/src/traits/object_safety.rs
View File

@ -517,8 +517,7 @@ fn virtual_call_violation_for_method<'tcx>(
tcx.sess.delay_span_bug(
tcx.def_span(method.def_id),
format!(
"receiver when `Self = ()` should have a Scalar ABI; found {:?}",
abi
"receiver when `Self = ()` should have a Scalar ABI; found {abi:?}"
),
);
}
@ -536,8 +535,7 @@ fn virtual_call_violation_for_method<'tcx>(
tcx.sess.delay_span_bug(
tcx.def_span(method.def_id),
format!(
"receiver when `Self = {}` should have a ScalarPair ABI; found {:?}",
trait_object_ty, abi
"receiver when `Self = {trait_object_ty}` should have a ScalarPair ABI; found {abi:?}"
),
);
}

8
compiler/rustc_trait_selection/src/traits/project.rs
View File

@ -483,8 +483,7 @@ impl<'a, 'b, 'tcx> AssocTypeNormalizer<'a, 'b, 'tcx> {
assert!(
!value.has_escaping_bound_vars(),
"Normalizing {:?} without wrapping in a `Binder`",
value
"Normalizing {value:?} without wrapping in a `Binder`"
);
if !needs_normalization(&value, self.param_env.reveal()) {
@ -1932,7 +1931,7 @@ fn assemble_candidates_from_impls<'cx, 'tcx>(
// These traits have no associated types.
selcx.tcx().sess.delay_span_bug(
obligation.cause.span,
format!("Cannot project an associated type from `{:?}`", impl_source),
format!("Cannot project an associated type from `{impl_source:?}`"),
);
return Err(());
}
@ -2303,8 +2302,7 @@ fn confirm_param_env_candidate<'cx, 'tcx>(
}
Err(e) => {
let msg = format!(
"Failed to unify obligation `{:?}` with poly_projection `{:?}`: {:?}",
obligation, poly_cache_entry, e,
"Failed to unify obligation `{obligation:?}` with poly_projection `{poly_cache_entry:?}`: {e:?}",
);
debug!("confirm_param_env_candidate: {}", msg);
let err = Ty::new_error_with_message(infcx.tcx, obligation.cause.span, msg);

2
compiler/rustc_trait_selection/src/traits/query/normalize.rs
View File

@ -299,7 +299,7 @@ impl<'cx, 'tcx> FallibleTypeFolder<TyCtxt<'tcx>> for QueryNormalizer<'cx, 'tcx>
if !tcx.sess.opts.actually_rustdoc {
tcx.sess.delay_span_bug(
DUMMY_SP,
format!("unexpected ambiguity: {:?} {:?}", c_data, result),
format!("unexpected ambiguity: {c_data:?} {result:?}"),
);
}
return Err(NoSolution);

5
compiler/rustc_trait_selection/src/traits/query/type_op/custom.rs
View File

@ -77,8 +77,7 @@ where
let pre_obligations = infcx.take_registered_region_obligations();
assert!(
pre_obligations.is_empty(),
"scrape_region_constraints: incoming region obligations = {:#?}",
pre_obligations,
"scrape_region_constraints: incoming region obligations = {pre_obligations:#?}",
);
let value = infcx.commit_if_ok(|_| {
@ -92,7 +91,7 @@ where
} else {
Err(infcx.tcx.sess.delay_span_bug(
DUMMY_SP,
format!("errors selecting obligation during MIR typeck: {:?}", errors),
format!("errors selecting obligation during MIR typeck: {errors:?}"),
))
}
})?;

14
compiler/rustc_trait_selection/src/traits/select/mod.rs
View File

@ -74,22 +74,21 @@ impl IntercrateAmbiguityCause {
match self {
IntercrateAmbiguityCause::DownstreamCrate { trait_desc, self_desc } => {
let self_desc = if let Some(ty) = self_desc {
format!(" for type `{}`", ty)
format!(" for type `{ty}`")
} else {
String::new()
};
format!("downstream crates may implement trait `{}`{}", trait_desc, self_desc)
format!("downstream crates may implement trait `{trait_desc}`{self_desc}")
}
IntercrateAmbiguityCause::UpstreamCrateUpdate { trait_desc, self_desc } => {
let self_desc = if let Some(ty) = self_desc {
format!(" for type `{}`", ty)
format!(" for type `{ty}`")
} else {
String::new()
};
format!(
"upstream crates may add a new impl of trait `{}`{} \
in future versions",
trait_desc, self_desc
"upstream crates may add a new impl of trait `{trait_desc}`{self_desc} \
in future versions"
)
}
IntercrateAmbiguityCause::ReservationImpl { message } => message.clone(),
@ -2410,8 +2409,7 @@ impl<'tcx> SelectionContext<'_, 'tcx> {
let guar = self.infcx.tcx.sess.delay_span_bug(
obligation.cause.span,
format!(
"Impl {:?} was matchable against {:?} but now is not",
impl_def_id, obligation
"Impl {impl_def_id:?} was matchable against {obligation:?} but now is not"
),
);
let value = self.infcx.fresh_args_for_item(obligation.cause.span, impl_def_id);

9
compiler/rustc_trait_selection/src/traits/specialize/mod.rs
View File

@ -388,16 +388,16 @@ fn report_conflicting_impls<'tcx>(
impl_span,
format!(
"conflicting implementation{}",
overlap.self_ty.map_or_else(String::new, |ty| format!(" for `{}`", ty))
overlap.self_ty.map_or_else(String::new, |ty| format!(" for `{ty}`"))
),
);
}
Err(cname) => {
let msg = match to_pretty_impl_header(tcx, overlap.with_impl) {
Some(s) => {
format!("conflicting implementation in crate `{}`:\n- {}", cname, s)
format!("conflicting implementation in crate `{cname}`:\n- {s}")
}
None => format!("conflicting implementation in crate `{}`", cname),
None => format!("conflicting implementation in crate `{cname}`"),
};
err.note(msg);
}
@ -514,8 +514,7 @@ pub(crate) fn to_pretty_impl_header(tcx: TyCtxt<'_>, impl_def_id: DefId) -> Opti
pretty_predicates.push(p.to_string());
}
pretty_predicates
.extend(types_without_default_bounds.iter().map(|ty| format!("{}: ?Sized", ty)));
pretty_predicates.extend(types_without_default_bounds.iter().map(|ty| format!("{ty}: ?Sized")));
if !pretty_predicates.is_empty() {
write!(w, "\n where {}", pretty_predicates.join(", ")).unwrap();

4
compiler/rustc_trait_selection/src/traits/util.rs
View File

@ -50,7 +50,7 @@ impl<'tcx> TraitAliasExpansionInfo<'tcx> {
diag.span_label(self.top().1, top_label);
if self.path.len() > 1 {
for (_, sp) in self.path.iter().rev().skip(1).take(self.path.len() - 2) {
diag.span_label(*sp, format!("referenced here ({})", use_desc));
diag.span_label(*sp, format!("referenced here ({use_desc})"));
}
}
if self.top().1 != self.bottom().1 {
@ -58,7 +58,7 @@ impl<'tcx> TraitAliasExpansionInfo<'tcx> {
// redundant labels.
diag.span_label(
self.bottom().1,
format!("trait alias used in trait object type ({})", use_desc),
format!("trait alias used in trait object type ({use_desc})"),
);
}
}

6
compiler/rustc_trait_selection/src/traits/vtable.rs
View File

@ -195,11 +195,7 @@ fn dump_vtable_entries<'tcx>(
trait_ref: ty::PolyTraitRef<'tcx>,
entries: &[VtblEntry<'tcx>],
) {
tcx.sess.emit_err(DumpVTableEntries {
span: sp,
trait_ref,
entries: format!("{:#?}", entries),
});
tcx.sess.emit_err(DumpVTableEntries { span: sp, trait_ref, entries: format!("{entries:#?}") });
}
fn has_own_existential_vtable_entries(tcx: TyCtxt<'_>, trait_def_id: DefId) -> bool {

5
library/core/src/ptr/non_null.rs
View File

@ -367,13 +367,14 @@ impl<T: ?Sized> NonNull<T> {
///
/// [the module documentation]: crate::ptr#safety
#[stable(feature = "nonnull", since = "1.25.0")]
#[rustc_const_unstable(feature = "const_ptr_as_ref", issue = "91822")]
#[rustc_const_stable(feature = "const_nonnull_as_ref", since = "CURRENT_RUSTC_VERSION")]
#[must_use]
#[inline(always)]
pub const unsafe fn as_ref<'a>(&self) -> &'a T {
// SAFETY: the caller must guarantee that `self` meets all the
// requirements for a reference.
unsafe { &*self.as_ptr() }
// `cast_const` avoids a mutable raw pointer deref.
unsafe { &*self.as_ptr().cast_const() }
}
/// Returns a unique reference to the value. If the value may be uninitialized, [`as_uninit_mut`]

100
library/std/src/io/util.rs
View File

@ -8,24 +8,41 @@ use crate::io::{
self, BorrowedCursor, BufRead, IoSlice, IoSliceMut, Read, Seek, SeekFrom, SizeHint, Write,
};
/// A reader which is always at EOF.
/// `Empty` ignores any data written via [`Write`], and will always be empty
/// (returning zero bytes) when read via [`Read`].
///
/// This struct is generally created by calling [`empty()`]. Please see
/// the documentation of [`empty()`] for more details.
/// This struct is generally created by calling [`empty()`]. Please
/// see the documentation of [`empty()`] for more details.
#[stable(feature = "rust1", since = "1.0.0")]
#[non_exhaustive]
#[derive(Copy, Clone, Default)]
#[derive(Copy, Clone, Debug, Default)]
pub struct Empty;
/// Constructs a new handle to an empty reader.
/// Creates a value that is always at EOF for reads, and ignores all data written.
///
/// All reads from the returned reader will return <code>[Ok]\(0)</code>.
/// All calls to [`write`] on the returned instance will return [`Ok(buf.len())`]
/// and the contents of the buffer will not be inspected.
///
/// All calls to [`read`] from the returned reader will return [`Ok(0)`].
///
/// [`Ok(buf.len())`]: Ok
/// [`Ok(0)`]: Ok
///
/// [`write`]: Write::write
/// [`read`]: Read::read
///
/// # Examples
///
/// A slightly sad example of not reading anything into a buffer:
/// ```rust
/// use std::io::{self, Write};
///
/// let buffer = vec![1, 2, 3, 5, 8];
/// let num_bytes = io::empty().write(&buffer).unwrap();
/// assert_eq!(num_bytes, 5);
/// ```
///
///
/// ```rust
/// use std::io::{self, Read};
///
/// let mut buffer = String::new();
@ -76,13 +93,6 @@ impl Seek for Empty {
}
}
#[stable(feature = "std_debug", since = "1.16.0")]
impl fmt::Debug for Empty {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.debug_struct("Empty").finish_non_exhaustive()
}
}
impl SizeHint for Empty {
#[inline]
fn upper_bound(&self) -> Option<usize> {
@ -90,6 +100,54 @@ impl SizeHint for Empty {
}
}
#[stable(feature = "empty_write", since = "1.64.0")]
impl Write for Empty {
#[inline]
fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
Ok(buf.len())
}
#[inline]
fn write_vectored(&mut self, bufs: &[IoSlice<'_>]) -> io::Result<usize> {
let total_len = bufs.iter().map(|b| b.len()).sum();
Ok(total_len)
}
#[inline]
fn is_write_vectored(&self) -> bool {
true
}
#[inline]
fn flush(&mut self) -> io::Result<()> {
Ok(())
}
}
#[stable(feature = "empty_write", since = "1.64.0")]
impl Write for &Empty {
#[inline]
fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
Ok(buf.len())
}
#[inline]
fn write_vectored(&mut self, bufs: &[IoSlice<'_>]) -> io::Result<usize> {
let total_len = bufs.iter().map(|b| b.len()).sum();
Ok(total_len)
}
#[inline]
fn is_write_vectored(&self) -> bool {
true
}
#[inline]
fn flush(&mut self) -> io::Result<()> {
Ok(())
}
}
/// A reader which yields one byte over and over and over and over and over and...
///
/// This struct is generally created by calling [`repeat()`]. Please
@ -182,19 +240,20 @@ impl fmt::Debug for Repeat {
/// A writer which will move data into the void.
///
/// This struct is generally created by calling [`sink`]. Please
/// This struct is generally created by calling [`sink()`]. Please
/// see the documentation of [`sink()`] for more details.
#[stable(feature = "rust1", since = "1.0.0")]
#[non_exhaustive]
#[derive(Copy, Clone, Default)]
#[derive(Copy, Clone, Debug, Default)]
pub struct Sink;
/// Creates an instance of a writer which will successfully consume all data.
///
/// All calls to [`write`] on the returned instance will return `Ok(buf.len())`
/// All calls to [`write`] on the returned instance will return [`Ok(buf.len())`]
/// and the contents of the buffer will not be inspected.
///
/// [`write`]: Write::write
/// [`Ok(buf.len())`]: Ok
///
/// # Examples
///
@ -259,10 +318,3 @@ impl Write for &Sink {
Ok(())
}
}
#[stable(feature = "std_debug", since = "1.16.0")]
impl fmt::Debug for Sink {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.debug_struct("Sink").finish_non_exhaustive()
}
}

13
library/std/src/io/util/tests.rs
View File

@ -18,7 +18,7 @@ fn empty_reads() {
assert_eq!(e.read(&mut []).unwrap(), 0);
assert_eq!(e.read(&mut [0]).unwrap(), 0);
assert_eq!(e.read(&mut [0; 1024]).unwrap(), 0);
assert_eq!(e.by_ref().read(&mut [0; 1024]).unwrap(), 0);
assert_eq!(Read::by_ref(&mut e).read(&mut [0; 1024]).unwrap(), 0);
let buf: &mut [MaybeUninit<_>] = &mut [];
let mut buf: BorrowedBuf<'_> = buf.into();
@ -40,7 +40,7 @@ fn empty_reads() {
let buf: &mut [_] = &mut [MaybeUninit::uninit(); 1024];
let mut buf: BorrowedBuf<'_> = buf.into();
e.by_ref().read_buf(buf.unfilled()).unwrap();
Read::by_ref(&mut e).read_buf(buf.unfilled()).unwrap();
assert_eq!(buf.len(), 0);
assert_eq!(buf.init_len(), 0);
}
@ -65,6 +65,15 @@ fn empty_seeks() {
assert!(matches!(e.seek(SeekFrom::Current(i64::MAX)), Ok(0)));
}
#[test]
fn empty_sinks() {
let mut e = empty();
assert_eq!(e.write(&[]).unwrap(), 0);
assert_eq!(e.write(&[0]).unwrap(), 1);
assert_eq!(e.write(&[0; 1024]).unwrap(), 1024);
assert_eq!(Write::by_ref(&mut e).write(&[0; 1024]).unwrap(), 1024);
}
#[test]
fn repeat_repeats() {
let mut r = repeat(4);

8
tests/ui/consts/const-eval/nonnull_as_ref.rs Normal file
View File

@ -0,0 +1,8 @@
// check-pass
use std::ptr::NonNull;
const NON_NULL: NonNull<u8> = unsafe { NonNull::new_unchecked((&42u8 as *const u8).cast_mut()) };
const _: () = assert!(42 == *unsafe { NON_NULL.as_ref() });
fn main() {}

6
tests/ui/consts/const-eval/nonnull_as_ref_ub.rs Normal file
View File

@ -0,0 +1,6 @@
use std::ptr::NonNull;
const NON_NULL: NonNull<u8> = unsafe { NonNull::dangling() };
const _: () = assert!(42 == *unsafe { NON_NULL.as_ref() });
fn main() {}

16
tests/ui/consts/const-eval/nonnull_as_ref_ub.stderr Normal file
View File

@ -0,0 +1,16 @@
error[E0080]: evaluation of constant value failed
--> $SRC_DIR/core/src/ptr/non_null.rs:LL:COL
|
= note: dereferencing pointer failed: 0x1[noalloc] is a dangling pointer (it has no provenance)
|
note: inside `NonNull::<u8>::as_ref::<'_>`
--> $SRC_DIR/core/src/ptr/non_null.rs:LL:COL
note: inside `_`
--> $DIR/nonnull_as_ref_ub.rs:4:39
|
LL | const _: () = assert!(42 == *unsafe { NON_NULL.as_ref() });
| ^^^^^^^^^^^^^^^^^
error: aborting due to previous error
For more information about this error, try `rustc --explain E0080`.

6
tests/ui/impl-trait/hidden-type-is-opaque-2.rs
View File

@ -6,7 +6,8 @@
fn reify_as() -> Thunk<impl FnOnce(Continuation) -> Continuation> {
Thunk::new(|mut cont| {
cont.reify_as(); //~ ERROR type annotations needed
//~^ ERROR type annotations needed
cont.reify_as();
cont
})
}
@ -15,7 +16,8 @@ type Tait = impl FnOnce(Continuation) -> Continuation;
fn reify_as_tait() -> Thunk<Tait> {
Thunk::new(|mut cont| {
cont.reify_as(); //~ ERROR type annotations needed
//~^ ERROR type annotations needed
cont.reify_as();
cont
})
}

24
tests/ui/impl-trait/hidden-type-is-opaque-2.stderr
View File

@ -1,14 +1,30 @@
error[E0282]: type annotations needed
--> $DIR/hidden-type-is-opaque-2.rs:9:9
--> $DIR/hidden-type-is-opaque-2.rs:8:17
|
LL | Thunk::new(|mut cont| {
| ^^^^^^^^
LL |
LL | cont.reify_as();
| ^^^^ cannot infer type
| ---- type must be known at this point
|
help: consider giving this closure parameter an explicit type
|
LL | Thunk::new(|mut cont: /* Type */| {
| ++++++++++++
error[E0282]: type annotations needed
--> $DIR/hidden-type-is-opaque-2.rs:18:9
--> $DIR/hidden-type-is-opaque-2.rs:18:17
|
LL | Thunk::new(|mut cont| {
| ^^^^^^^^
LL |
LL | cont.reify_as();
| ^^^^ cannot infer type
| ---- type must be known at this point
|
help: consider giving this closure parameter an explicit type
|
LL | Thunk::new(|mut cont: /* Type */| {
| ++++++++++++
error: aborting due to 2 previous errors

8
tests/ui/mismatched_types/closure-ref-114180.rs Normal file
View File

@ -0,0 +1,8 @@
// check-fail
fn main() {
let mut v = vec![(1,)];
let compare = |(a,), (e,)| todo!();
v.sort_by(compare);
//~^ ERROR type mismatch in closure arguments
}

22
tests/ui/mismatched_types/closure-ref-114180.stderr Normal file
View File

@ -0,0 +1,22 @@
error[E0631]: type mismatch in closure arguments
--> $DIR/closure-ref-114180.rs:6:15
|
LL | let compare = |(a,), (e,)| todo!();
| ------------ found signature defined here
LL | v.sort_by(compare);
| ------- ^^^^^^^ expected due to this
| |
| required by a bound introduced by this call
|
= note: expected closure signature `for<'a, 'b> fn(&'a ({integer},), &'b ({integer},)) -> _`
found closure signature `fn((_,), (_,)) -> _`
note: required by a bound in `slice::<impl [T]>::sort_by`
--> $SRC_DIR/alloc/src/slice.rs:LL:COL
help: consider adjusting the signature so it borrows its arguments
|
LL | let compare = |&(a,), &(e,)| todo!();
| + +
error: aborting due to previous error
For more information about this error, try `rustc --explain E0631`.

44
tests/ui/mismatched_types/ref-pat-suggestions.stderr
View File

@ -103,10 +103,10 @@ error[E0308]: mismatched types
--> $DIR/ref-pat-suggestions.rs:11:23
|
LL | let _: fn(u32) = |&_a| ();
| ^--
| ||
| |expected due to this
| ^^^
| |
| expected `u32`, found `&_`
| expected due to this
|
= note: expected type `u32`
found reference `&_`
@ -120,10 +120,10 @@ error[E0308]: mismatched types
--> $DIR/ref-pat-suggestions.rs:12:23
|
LL | let _: fn(u32) = |&mut _a| ();
| ^^^^^--
| | |
| | expected due to this
| ^^^^^^^
| |
| expected `u32`, found `&mut _`
| expected due to this
|
= note: expected type `u32`
found mutable reference `&mut _`
@ -142,10 +142,10 @@ error[E0308]: mismatched types
--> $DIR/ref-pat-suggestions.rs:13:25
|
LL | let _: fn(&u32) = |&&_a| ();
| ^--
| ||
| |expected due to this
| expected `u32`, found `&_`
| -^^^
| ||
| |expected `u32`, found `&_`
| expected due to this
|
= note: expected type `u32`
found reference `&_`
@ -159,10 +159,10 @@ error[E0308]: mismatched types
--> $DIR/ref-pat-suggestions.rs:14:33
|
LL | let _: fn(&mut u32) = |&mut &_a| ();
| ^--
| ||
| |expected due to this
| expected `u32`, found `&_`
| -----^^^
| | |
| | expected `u32`, found `&_`
| expected due to this
|
= note: expected type `u32`
found reference `&_`
@ -176,10 +176,10 @@ error[E0308]: mismatched types
--> $DIR/ref-pat-suggestions.rs:15:25
|
LL | let _: fn(&u32) = |&&mut _a| ();
| ^^^^^--
| | |
| | expected due to this
| expected `u32`, found `&mut _`
| -^^^^^^^
| ||
| |expected `u32`, found `&mut _`
| expected due to this
|
= note: expected type `u32`
found mutable reference `&mut _`
@ -193,10 +193,10 @@ error[E0308]: mismatched types
--> $DIR/ref-pat-suggestions.rs:16:33
|
LL | let _: fn(&mut u32) = |&mut &mut _a| ();
| ^^^^^--
| | |
| | expected due to this
| expected `u32`, found `&mut _`
| -----^^^^^^^
| | |
| | expected `u32`, found `&mut _`
| expected due to this
|
= note: expected type `u32`
found mutable reference `&mut _`

4
tests/ui/privacy/unnameable_types.rs
View File

@ -11,12 +11,12 @@ mod m {
pub trait PubTr { //~ ERROR trait `PubTr` is reachable but cannot be named
const C : i32 = 0;
type Alias; //~ ERROR associated type `PubTr::Alias` is reachable but cannot be named
type Alias;
fn f() {}
}
impl PubTr for PubStruct {
type Alias = i32; //~ ERROR associated type `<PubStruct as PubTr>::Alias` is reachable but cannot be named
type Alias = i32;
fn f() {}
}
}

14
tests/ui/privacy/unnameable_types.stderr
View File

@ -22,17 +22,5 @@ error: trait `PubTr` is reachable but cannot be named
LL | pub trait PubTr {
| ^^^^^^^^^^^^^^^ reachable at visibility `pub`, but can only be named at visibility `pub(crate)`
error: associated type `PubTr::Alias` is reachable but cannot be named
--> $DIR/unnameable_types.rs:14:9
|
LL | type Alias;
| ^^^^^^^^^^ reachable at visibility `pub`, but can only be named at visibility `pub(crate)`
error: associated type `<PubStruct as PubTr>::Alias` is reachable but cannot be named
--> $DIR/unnameable_types.rs:19:9
|
LL | type Alias = i32;
| ^^^^^^^^^^ reachable at visibility `pub`, but can only be named at visibility `pub(crate)`
error: aborting due to 5 previous errors
error: aborting due to 3 previous errors