Rollup merge of #105975 - jeremystucki:rustc-remove-needless-lifetimes, r=eholk

rustc: Remove needless lifetimes

Author: matthiaskrgr

compiler/rustc_ast/src/util/comments.rs

@@ -51,7 +51,7 @@ pub fn beautify_doc_string(data: Symbol, kind: CommentKind) -> Symbol {
         if i != 0 || j != lines.len() { Some((i, j)) } else { None }
     }
 
-    fn get_horizontal_trim<'a>(lines: &'a [&str], kind: CommentKind) -> Option<String> {
+    fn get_horizontal_trim(lines: &[&str], kind: CommentKind) -> Option<String> {
         let mut i = usize::MAX;
         let mut first = true;
 

compiler/rustc_ast_lowering/src/lib.rs

@@ -414,7 +414,7 @@ fn compute_hir_hash(
     })
 }
 
-pub fn lower_to_hir<'hir>(tcx: TyCtxt<'hir>, (): ()) -> hir::Crate<'hir> {
+pub fn lower_to_hir(tcx: TyCtxt<'_>, (): ()) -> hir::Crate<'_> {
     let sess = tcx.sess;
     let krate = tcx.untracked_crate.steal();
     let mut resolver = tcx.resolver_for_lowering(()).steal();

compiler/rustc_borrowck/src/consumers.rs

@@ -28,10 +28,10 @@ pub use super::{
 ///     that shows how to do this at `src/test/run-make/obtain-borrowck/`.
 ///
 /// *   Polonius is highly unstable, so expect regular changes in its signature or other details.
-pub fn get_body_with_borrowck_facts<'tcx>(
-    tcx: TyCtxt<'tcx>,
+pub fn get_body_with_borrowck_facts(
+    tcx: TyCtxt<'_>,
     def: ty::WithOptConstParam<LocalDefId>,
-) -> BodyWithBorrowckFacts<'tcx> {
+) -> BodyWithBorrowckFacts<'_> {
     let (input_body, promoted) = tcx.mir_promoted(def);
     let infcx = tcx.infer_ctxt().with_opaque_type_inference(DefiningAnchor::Bind(def.did)).build();
     let input_body: &Body<'_> = &input_body.borrow();

compiler/rustc_borrowck/src/diagnostics/find_all_local_uses.rs

@@ -9,7 +9,7 @@ use rustc_middle::mir::{Body, Local, Location};
 /// Find all uses of (including assignments to) a [`Local`].
 ///
 /// Uses `BTreeSet` so output is deterministic.
-pub(super) fn find<'tcx>(body: &Body<'tcx>, local: Local) -> BTreeSet<Location> {
+pub(super) fn find(body: &Body<'_>, local: Local) -> BTreeSet<Location> {
     let mut visitor = AllLocalUsesVisitor { for_local: local, uses: BTreeSet::default() };
     visitor.visit_body(body);
     visitor.uses

compiler/rustc_borrowck/src/lib.rs

@@ -124,10 +124,7 @@ pub fn provide(providers: &mut Providers) {
     };
 }
 
-fn mir_borrowck<'tcx>(
-    tcx: TyCtxt<'tcx>,
-    def: ty::WithOptConstParam<LocalDefId>,
-) -> &'tcx BorrowCheckResult<'tcx> {
+fn mir_borrowck(tcx: TyCtxt<'_>, def: ty::WithOptConstParam<LocalDefId>) -> &BorrowCheckResult<'_> {
     let (input_body, promoted) = tcx.mir_promoted(def);
     debug!("run query mir_borrowck: {}", tcx.def_path_str(def.did.to_def_id()));
 

compiler/rustc_borrowck/src/type_check/free_region_relations.rs

@@ -85,7 +85,7 @@ impl UniversalRegionRelations<'_> {
     /// outlives `fr` and (b) is not local.
     ///
     /// (*) If there are multiple competing choices, we return all of them.
-    pub(crate) fn non_local_upper_bounds<'a>(&'a self, fr: RegionVid) -> Vec<RegionVid> {
+    pub(crate) fn non_local_upper_bounds(&self, fr: RegionVid) -> Vec<RegionVid> {
         debug!("non_local_upper_bound(fr={:?})", fr);
         let res = self.non_local_bounds(&self.inverse_outlives, fr);
         assert!(!res.is_empty(), "can't find an upper bound!?");
@@ -148,9 +148,9 @@ impl UniversalRegionRelations<'_> {
     /// Helper for `non_local_upper_bounds` and `non_local_lower_bounds`.
     /// Repeatedly invokes `postdom_parent` until we find something that is not
     /// local. Returns `None` if we never do so.
-    fn non_local_bounds<'a>(
+    fn non_local_bounds(
         &self,
-        relation: &'a TransitiveRelation<RegionVid>,
+        relation: &TransitiveRelation<RegionVid>,
         fr0: RegionVid,
     ) -> Vec<RegionVid> {
         // This method assumes that `fr0` is one of the universally

compiler/rustc_builtin_macros/src/asm.rs

@@ -352,7 +352,7 @@ pub fn parse_asm_args<'a>(
 ///
 /// This function must be called immediately after the option token is parsed.
 /// Otherwise, the suggestion will be incorrect.
-fn err_duplicate_option<'a>(p: &mut Parser<'a>, symbol: Symbol, span: Span) {
+fn err_duplicate_option(p: &mut Parser<'_>, symbol: Symbol, span: Span) {
     let mut err = p
         .sess
         .span_diagnostic

compiler/rustc_codegen_gcc/src/base.rs

@@ -52,7 +52,7 @@ pub fn linkage_to_gcc(linkage: Linkage) -> FunctionType {
     }
 }
 
-pub fn compile_codegen_unit<'tcx>(tcx: TyCtxt<'tcx>, cgu_name: Symbol, supports_128bit_integers: bool) -> (ModuleCodegen<GccContext>, u64) {
+pub fn compile_codegen_unit(tcx: TyCtxt<'_>, cgu_name: Symbol, supports_128bit_integers: bool) -> (ModuleCodegen<GccContext>, u64) {
     let prof_timer = tcx.prof.generic_activity("codegen_module");
     let start_time = Instant::now();
 

compiler/rustc_codegen_gcc/src/common.rs

@@ -44,7 +44,7 @@ pub fn bytes_in_context<'gcc, 'tcx>(cx: &CodegenCx<'gcc, 'tcx>, bytes: &[u8]) ->
     context.new_array_constructor(None, typ, &elements)
 }
 
-pub fn type_is_pointer<'gcc>(typ: Type<'gcc>) -> bool {
+pub fn type_is_pointer(typ: Type<'_>) -> bool {
     typ.get_pointee().is_some()
 }
 

compiler/rustc_codegen_gcc/src/lib.rs

@@ -161,7 +161,7 @@ impl ExtraBackendMethods for GccCodegenBackend {
         mods
     }
 
-    fn compile_codegen_unit<'tcx>(&self, tcx: TyCtxt<'tcx>, cgu_name: Symbol) -> (ModuleCodegen<Self::Module>, u64) {
+    fn compile_codegen_unit(&self, tcx: TyCtxt<'_>, cgu_name: Symbol) -> (ModuleCodegen<Self::Module>, u64) {
         base::compile_codegen_unit(tcx, cgu_name, *self.supports_128bit_integers.lock().expect("lock"))
     }