chore: Fix typos in 'compiler' (batch 1)

compiler/rustc_ast_lowering/src/delegation.rs

@@ -72,7 +72,7 @@ impl<'hir> LoweringContext<'_, 'hir> {
  fn has_self(&self, def_id: DefId, span: Span) -> bool {
  if let Some(local_sig_id) = def_id.as_local() {
  // The value may be missing due to recursive delegation.
- // Error will be emmited later during HIR ty lowering.
+ // Error will be emitted later during HIR ty lowering.
  self.resolver.delegation_fn_sigs.get(&local_sig_id).map_or(false, |sig| sig.has_self)
  } else {
  match self.tcx.def_kind(def_id) {
@@ -139,7 +139,7 @@ impl<'hir> LoweringContext<'_, 'hir> {
  fn param_count(&self, sig_id: DefId) -> (usize, bool /*c_variadic*/) {
  if let Some(local_sig_id) = sig_id.as_local() {
  // Map may be filled incorrectly due to recursive delegation.
- // Error will be emmited later during HIR ty lowering.
+ // Error will be emitted later during HIR ty lowering.
  match self.resolver.delegation_fn_sigs.get(&local_sig_id) {
  Some(sig) => (sig.param_count, sig.c_variadic),
  None => (0, false),

compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs

@@ -1179,7 +1179,7 @@ impl<'infcx, 'tcx> MirBorrowckCtxt<'_, '_, 'infcx, 'tcx> {
  for field in &variant.fields {
  // In practice unless there are more than one field with the same type, we'll be
  // suggesting a single field at a type, because we don't aggregate multiple borrow
- // checker errors involving the functional record update sytnax into a single one.
+ // checker errors involving the functional record update syntax into a single one.
  let field_ty = field.ty(self.infcx.tcx, args);
  let ident = field.ident(self.infcx.tcx);
  if field_ty == ty && fields.iter().all(|field| field.ident.name != ident.name) {

compiler/rustc_borrowck/src/type_check/liveness/trace.rs

@@ -218,7 +218,7 @@ impl<'a, 'me, 'typeck, 'flow, 'tcx> LivenessResults<'a, 'me, 'typeck, 'flow, 'tc
  // This collect is more necessary than immediately apparent
  // because these facts go into `add_drop_live_facts_for()`,
  // which also writes to `all_facts`, and so this is genuinely
- // a simulatneous overlapping mutable borrow.
+ // a simultaneous overlapping mutable borrow.
  // FIXME for future hackers: investigate whether this is
  // actually necessary; these facts come from Polonius
  // and probably maybe plausibly does not need to go back in.

compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs

@@ -422,7 +422,7 @@ fn prepare_usage_sets<'tcx>(tcx: TyCtxt<'tcx>) -> UsageSets<'tcx> {
  (instance.def_id(), body)
  });
 
- // Functions whose coverage statments were found inlined into other functions.
+ // Functions whose coverage statements were found inlined into other functions.
  let mut used_via_inlining = FxHashSet::default();
  // Functions that were instrumented, but had all of their coverage statements
  // removed by later MIR transforms (e.g. UnreachablePropagation).

compiler/rustc_codegen_ssa/src/debuginfo/type_names.rs

@@ -701,7 +701,7 @@ fn push_const_param<'tcx>(tcx: TyCtxt<'tcx>, ct: ty::Const<'tcx>, output: &mut S
  match ty.kind() {
  ty::Int(ity) => {
  // FIXME: directly extract the bits from a valtree instead of evaluating an
- // alreay evaluated `Const` in order to get the bits.
+ // already evaluated `Const` in order to get the bits.
  let bits = ct.eval_bits(tcx, ty::ParamEnv::reveal_all());
  let val = Integer::from_int_ty(&tcx, *ity).size().sign_extend(bits) as i128;
  write!(output, "{val}")

compiler/rustc_const_eval/src/interpret/call.rs

@@ -20,7 +20,7 @@ use super::{
 };
 use crate::fluent_generated as fluent;
 
-/// An argment passed to a function.
+/// An argument passed to a function.
 #[derive(Clone, Debug)]
 pub enum FnArg<'tcx, Prov: Provenance = CtfeProvenance> {
  /// Pass a copy of the given operand.
@@ -123,7 +123,7 @@ impl<'tcx, M: Machine<'tcx>> InterpCx<'tcx, M> {
  self.tcx.has_attr(def.did(), sym::rustc_nonnull_optimization_guaranteed)
  };
  let inner = self.unfold_transparent(inner, /* may_unfold */ |def| {
- // Stop at NPO tpyes so that we don't miss that attribute in the check below!
+ // Stop at NPO types so that we don't miss that attribute in the check below!
  def.is_struct() && !is_npo(def)
  });
  Ok(match inner.ty.kind() {

compiler/rustc_const_eval/src/interpret/eval_context.rs

@@ -574,7 +574,7 @@ impl<'tcx, M: Machine<'tcx>> InterpCx<'tcx, M> {
  // be computed as the type references non-existing names.
  // See <https:/rust-lang/rust/issues/124348>.
  } else {
- // Looks like the const is not captued by `required_consts`, that's bad.
+ // Looks like the const is not captured by `required_consts`, that's bad.
  span_bug!(span, "interpret const eval failure of {val:?} which is not in required_consts");
  }
  }

compiler/rustc_const_eval/src/interpret/memory.rs

@@ -827,7 +827,7 @@ impl<'tcx, M: Machine<'tcx>> InterpCx<'tcx, M> {
 
  let (size, align) = if nested {
  // Nested anonymous statics are untyped, so let's get their
- // size and alignment from the allocaiton itself. This always
+ // size and alignment from the allocation itself. This always
  // succeeds, as the query is fed at DefId creation time, so no
  // evaluation actually occurs.
  let alloc = self.tcx.eval_static_initializer(def_id).unwrap();

compiler/rustc_const_eval/src/interpret/place.rs

@@ -186,7 +186,7 @@ pub(super) enum Place<Prov: Provenance = CtfeProvenance> {
  /// `Local` places always refer to the current stack frame, so they are unstable under
  /// function calls/returns and switching betweens stacks of different threads!
  /// We carry around the address of the `locals` buffer of the correct stack frame as a sanity
- /// chec to be able to catch some cases of using a dangling `Place`.
+ /// check to be able to catch some cases of using a dangling `Place`.
  ///
  /// This variant shall not be used for unsized types -- those must always live in memory.
  Local { local: mir::Local, offset: Option<Size>, locals_addr: usize },

compiler/rustc_const_eval/src/interpret/stack.rs

@@ -1,5 +1,5 @@
 //! Manages the low-level pushing and popping of stack frames and the (de)allocation of local variables.
-//! For hadling of argument passing and return values, see the `call` module.
+//! For handling of argument passing and return values, see the `call` module.
 use std::cell::Cell;
 use std::{fmt, mem};
 

compiler/rustc_data_structures/src/base_n.rs

@@ -42,7 +42,7 @@ impl fmt::Display for BaseNString {
 }
 
 // This trait just lets us reserve the exact right amount of space when doing fixed-length
-// case-insensitve encoding. Add any impls you need.
+// case-insensitive encoding. Add any impls you need.
 pub trait ToBaseN: Into<u128> {
  fn encoded_len(base: usize) -> usize;
 

compiler/rustc_data_structures/src/graph/scc/mod.rs

@@ -477,7 +477,7 @@ where
  // will know when we hit the state where previous_node == node.
  loop {
  // Back at the beginning, we can return. Note that we return the root state.
- // This is becuse for components being explored, we would otherwise get a
+ // This is because for components being explored, we would otherwise get a
  // `node_state[n] = InCycleWith{ parent: n }` and that's wrong.
  if previous_node == node {
  return root_state;

compiler/rustc_data_structures/src/hashes.rs

@@ -3,11 +3,11 @@
 //! or 16 bytes of the hash.
 //!
 //! The types in this module represent 64-bit or 128-bit hashes produced by a `StableHasher`.
-//! `Hash64` and `Hash128` expose some utilty functions to encourage users to not extract the inner
+//! `Hash64` and `Hash128` expose some utility functions to encourage users to not extract the inner
 //! hash value as an integer type and accidentally apply varint encoding to it.
 //!
 //! In contrast with `Fingerprint`, users of these types cannot and should not attempt to construct
-//! and decompose these types into constitutent pieces. The point of these types is only to
+//! and decompose these types into constituent pieces. The point of these types is only to
 //! connect the fact that they can only be produced by a `StableHasher` to their
 //! `Encode`/`Decode` impls.
 

compiler/rustc_data_structures/src/sync/worker_local.rs

@@ -19,7 +19,7 @@ impl RegistryId {
  /// index within the registry. This panics if the current thread is not associated with this
  /// registry.
  ///
- /// Note that there's a race possible where the identifer in `THREAD_DATA` could be reused
+ /// Note that there's a race possible where the identifier in `THREAD_DATA` could be reused
  /// so this can succeed from a different registry.
  #[cfg(parallel_compiler)]
  fn verify(self) -> usize {
@@ -50,7 +50,7 @@ struct ThreadData {
 }
 
 thread_local! {
- /// A thread local which contains the identifer of `REGISTRY` but allows for faster access.
+ /// A thread local which contains the identifier of `REGISTRY` but allows for faster access.
  /// It also holds the index of the current thread.
  static THREAD_DATA: ThreadData = const { ThreadData {
  registry_id: Cell::new(RegistryId(ptr::null())),
@@ -66,7 +66,7 @@ impl Registry {
 
  /// Gets the registry associated with the current thread. Panics if there's no such registry.
  pub fn current() -> Self {
- REGISTRY.with(|registry| registry.get().cloned().expect("No assocated registry"))
+ REGISTRY.with(|registry| registry.get().cloned().expect("No associated registry"))
  }
 
  /// Registers the current thread with the registry so worker locals can be used on it.
@@ -92,7 +92,7 @@ impl Registry {
  }
  }
 
- /// Gets the identifer of this registry.
+ /// Gets the identifier of this registry.
  fn id(&self) -> RegistryId {
  RegistryId(&*self.0)
  }

compiler/rustc_error_codes/src/error_codes/E0582.md

@@ -44,7 +44,7 @@ where
 ```
 The latter scenario encounters this error because `Foo::Assoc<'a>` could be
 implemented by a type that does not use the `'a` parameter, so there is no
-guarentee that `X::Assoc<'a>` actually uses `'a`.
+guarantee that `X::Assoc<'a>` actually uses `'a`.
 
 To fix this we can pass a dummy parameter:
 ```

compiler/rustc_errors/src/diagnostic.rs

@@ -484,7 +484,7 @@ pub struct Subdiag {
 /// - The `EmissionGuarantee`, which determines the type returned from `emit`.
 ///
 /// Each constructed `Diag` must be consumed by a function such as `emit`,
-/// `cancel`, `delay_as_bug`, or `into_diag`. A panic occurrs if a `Diag`
+/// `cancel`, `delay_as_bug`, or `into_diag`. A panic occurs if a `Diag`
 /// is dropped without being consumed by one of these functions.
 ///
 /// If there is some state in a downstream crate you would like to access in

compiler/rustc_errors/src/emitter.rs

@@ -2300,7 +2300,7 @@ impl HumanEmitter {
  // For example, for the following:
  // |
  // 2 - .await
- // 2 + (note the left over whitepsace)
+ // 2 + (note the left over whitespace)
  // |
  // We really want
  // |

compiler/rustc_errors/src/lib.rs

@@ -817,7 +817,7 @@ impl<'a> DiagCtxtHandle<'a> {
  );
  }
  // We delay a bug here so that `-Ztreat-err-as-bug -Zeagerly-emit-delayed-bugs`
- // can be used to create a backtrace at the stashing site insted of whenever the
+ // can be used to create a backtrace at the stashing site instead of whenever the
  // diagnostic context is dropped and thus delayed bugs are emitted.
  Error => Some(self.span_delayed_bug(span, format!("stashing {key:?}"))),
  DelayedBug => {

compiler/rustc_errors/src/markdown/parse.rs

@@ -487,7 +487,7 @@ fn is_break_ty(val: &MdTree<'_>) -> bool {
  || matches!(val, MdTree::PlainText(txt) if txt.trim().is_empty())
 }
 
-/// Perform tranformations to text. This splits paragraphs, replaces patterns,
+/// Perform transformations to text. This splits paragraphs, replaces patterns,
 /// and corrects newlines.
 ///
 /// To avoid allocating strings (and using a different heavier tt type), our

compiler/rustc_feature/src/unstable.rs

@@ -585,7 +585,7 @@ declare_features! (
  (unstable, rust_cold_cc, "1.63.0", Some(97544)),
  /// Allows use of x86 SHA512, SM3 and SM4 target-features and intrinsics
  (unstable, sha512_sm_x86, "CURRENT_RUSTC_VERSION", Some(126624)),
- /// Shortern the tail expression lifetime
+ /// Shorten the tail expression lifetime
  (unstable, shorter_tail_lifetimes, "1.79.0", Some(123739)),
  /// Allows the use of SIMD types in functions declared in `extern` blocks.
  (unstable, simd_ffi, "1.0.0", Some(27731)),

compiler/rustc_hir_analysis/src/check/wfcheck.rs

@@ -1016,7 +1016,7 @@ fn check_param_wf(tcx: TyCtxt<'_>, param: &hir::GenericParam<'_>) -> Result<(),
  sym::adt_const_params,
  )])
  }
- // Implments `ConstParamTy`, suggest adding the feature to enable.
+ // Implements `ConstParamTy`, suggest adding the feature to enable.
  Ok(..) => Some(vec![(adt_const_params_feature_string, sym::adt_const_params)]),
  };
  if let Some(features) = may_suggest_feature {

compiler/rustc_hir_analysis/src/coherence/builtin.rs

@@ -219,7 +219,7 @@ fn visit_implementation_of_dispatch_from_dyn(checker: &Checker<'_>) -> Result<()
  // Later parts of the compiler rely on all DispatchFromDyn types to be ABI-compatible with raw
  // pointers. This is enforced here: we only allow impls for references, raw pointers, and things
  // that are effectively repr(transparent) newtypes around types that already hav a
- // DispatchedFromDyn impl. We cannot literally use repr(transparent) on those tpyes since some
+ // DispatchedFromDyn impl. We cannot literally use repr(transparent) on those types since some
  // of them support an allocator, but we ensure that for the cases where the type implements this
  // trait, they *do* satisfy the repr(transparent) rules, and then we assume that everything else
  // in the compiler (in particular, all the call ABI logic) will treat them as repr(transparent)

compiler/rustc_hir_analysis/src/collect.rs

@@ -1037,7 +1037,7 @@ impl<'tcx> FieldUniquenessCheckContext<'tcx> {
 
  /// Check the uniqueness of fields in a struct variant, and recursively
  /// check the nested fields if it is an unnamed field with type of an
- /// annoymous adt.
+ /// anonymous adt.
  fn check_field(&mut self, field: &hir::FieldDef<'_>) {
  if field.ident.name != kw::Underscore {
  self.check_field_decl(field.ident, field.span.into());
@@ -1491,7 +1491,7 @@ fn infer_return_ty_for_fn_sig<'tcx>(
  Some(ty) => {
  let fn_sig = tcx.typeck(def_id).liberated_fn_sigs()[hir_id];
  // Typeck doesn't expect erased regions to be returned from `type_of`.
- // This is a heuristic approach. If the scope has region paramters,
+ // This is a heuristic approach. If the scope has region parameters,
  // we should change fn_sig's lifetime from `ReErased` to `ReError`,
  // otherwise to `ReStatic`.
  let has_region_params = generics.params.iter().any(|param| match param.kind {

compiler/rustc_hir_analysis/src/hir_ty_lowering/bounds.rs

@@ -529,7 +529,7 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ {
 
 /// Detect and reject early-bound & escaping late-bound generic params in the type of assoc const bindings.
 ///
-/// FIXME(const_generics): This is a temporary and semi-artifical restriction until the
+/// FIXME(const_generics): This is a temporary and semi-artificial restriction until the
 /// arrival of *generic const generics*[^1].
 ///
 /// It might actually be possible that we can already support early-bound generic params

compiler/rustc_hir_analysis/src/hir_ty_lowering/mod.rs

@@ -986,7 +986,7 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ {
  /// We **don't** support paths whose self type is an arbitrary type like `Struct::Ty` where
  /// struct `Struct` impls an in-scope trait that defines an associated type called `Ty`.
  /// For the latter case, we report ambiguity.
- /// While desirable to support, the implemention would be non-trivial. Tracked in [#22519].
+ /// While desirable to support, the implementation would be non-trivial. Tracked in [#22519].
  ///
  /// At the time of writing, *inherent associated types* are also resolved here. This however
  /// is [problematic][iat]. A proper implementation would be as non-trivial as the one

compiler/rustc_hir_typeck/src/cast.rs

@@ -650,7 +650,7 @@ impl<'a, 'tcx> CastCheck<'tcx> {
  // cannot distinguish. This would cause us to erroneously discard a cast which will
  // lead to a borrowck error like #113257.
  // We still did a coercion above to unify inference variables for `ptr as _` casts.
- // This does cause us to miss some trivial casts in the trival cast lint.
+ // This does cause us to miss some trivial casts in the trivial cast lint.
  debug!(" -> PointerCast");
  } else {
  self.trivial_cast_lint(fcx);

compiler/rustc_hir_typeck/src/method/confirm.rs

@@ -249,7 +249,7 @@ impl<'a, 'tcx> ConfirmContext<'a, 'tcx> {
  }
 
  /// Returns a set of generic parameters for the method *receiver* where all type and region
- /// parameters are instantiated with fresh variables. This generic paramters does not include any
+ /// parameters are instantiated with fresh variables. This generic parameters does not include any
  /// parameters declared on the method itself.
  ///
  /// Note that this generic parameters may include late-bound regions from the impl level. If so,
@@ -375,7 +375,7 @@ impl<'a, 'tcx> ConfirmContext<'a, 'tcx> {
  IsMethodCall::Yes,
  );
 
- // Create generic paramters for early-bound lifetime parameters,
+ // Create generic parameters for early-bound lifetime parameters,
  // combining parameters from the type and those from the method.
  assert_eq!(generics.parent_count, parent_args.len());
 
@@ -546,7 +546,7 @@ impl<'a, 'tcx> ConfirmContext<'a, 'tcx> {
  debug!("instantiate_method_sig(pick={:?}, all_args={:?})", pick, all_args);
 
  // Instantiate the bounds on the method with the
- // type/early-bound-regions instatiations performed. There can
+ // type/early-bound-regions instantiations performed. There can
  // be no late-bound regions appearing here.
  let def_id = pick.item.def_id;
  let method_predicates = self.tcx.predicates_of(def_id).instantiate(self.tcx, all_args);

compiler/rustc_hir_typeck/src/upvar.rs

@@ -228,7 +228,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
  // coroutine bodies can't borrow from their parent closure. To fix this,
  // we force the inner coroutine to also be `move`. This only matters for
  // coroutine-closures that are `move` since otherwise they themselves will
- // be borrowing from the outer environment, so there's no self-borrows occuring.
+ // be borrowing from the outer environment, so there's no self-borrows occurring.
  if let UpvarArgs::Coroutine(..) = args
  && let hir::CoroutineKind::Desugared(_, hir::CoroutineSource::Closure) =
  self.tcx.coroutine_kind(closure_def_id).expect("coroutine should have kind")

compiler/rustc_infer/src/infer/canonical/canonicalizer.rs

@@ -51,7 +51,7 @@ impl<'tcx> InferCtxt<'tcx> {
  query_state,
  |tcx, param_env, query_state| {
  // FIXME(#118965): We don't canonicalize the static lifetimes that appear in the
- // `param_env` beacause they are treated differently by trait selection.
+ // `param_env` because they are treated differently by trait selection.
  Canonicalizer::canonicalize(
  param_env,
  None,

compiler/rustc_infer/src/infer/opaque_types/mod.rs

@@ -213,7 +213,7 @@ impl<'tcx> InferCtxt<'tcx> {
  /// ```
  ///
  /// As indicating in the comments above, each of those references
- /// is (in the compiler) basically generic paramters (`args`)
+ /// is (in the compiler) basically generic parameters (`args`)
  /// applied to the type of a suitable `def_id` (which identifies
  /// `Foo1` or `Foo2`).
  ///