Rename PatKind::Lit to Expr

compiler/rustc_ast/src/ast.rs

@@ -623,7 +623,7 @@ impl Pat {
             PatKind::Wild
             | PatKind::Rest
             | PatKind::Never
-            | PatKind::Lit(_)
+            | PatKind::Expr(_)
             | PatKind::Range(..)
             | PatKind::Ident(..)
             | PatKind::Path(..)
@@ -801,8 +801,8 @@ pub enum PatKind {
     /// A reference pattern (e.g., `&mut (a, b)`).
     Ref(P<Pat>, Mutability),
 
-    /// A literal.
+    /// A literal, const block or path.
-    Lit(P<Expr>),
+    Expr(P<Expr>),
 
     /// A range pattern (e.g., `1...2`, `1..2`, `1..`, `..2`, `1..=2`, `..=2`).
     Range(Option<P<Expr>>, Option<P<Expr>>, Spanned<RangeEnd>),

compiler/rustc_ast/src/mut_visit.rs

@@ -1512,7 +1512,7 @@ pub fn walk_pat<T: MutVisitor>(vis: &mut T, pat: &mut P<Pat>) {
             vis.visit_ident(ident);
             visit_opt(sub, |sub| vis.visit_pat(sub));
         }
-        PatKind::Lit(e) => vis.visit_expr(e),
+        PatKind::Expr(e) => vis.visit_expr(e),
         PatKind::TupleStruct(qself, path, elems) => {
             vis.visit_qself(qself);
             vis.visit_path(path);

compiler/rustc_ast/src/visit.rs

@@ -680,7 +680,7 @@ pub fn walk_pat<'a, V: Visitor<'a>>(visitor: &mut V, pattern: &'a Pat) -> V::Res
             try_visit!(visitor.visit_ident(ident));
             visit_opt!(visitor, visit_pat, optional_subpattern);
         }
-        PatKind::Lit(expression) => try_visit!(visitor.visit_expr(expression)),
+        PatKind::Expr(expression) => try_visit!(visitor.visit_expr(expression)),
         PatKind::Range(lower_bound, upper_bound, _end) => {
             visit_opt!(visitor, visit_expr, lower_bound);
             visit_opt!(visitor, visit_expr, upper_bound);

compiler/rustc_ast_lowering/src/pat.rs

@@ -38,8 +38,8 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> {
                             lower_sub,
                         );
                     }
-                    PatKind::Lit(e) => {
+                    PatKind::Expr(e) => {
-                        break hir::PatKind::Lit(self.lower_expr_within_pat(e, false));
+                        break hir::PatKind::Expr(self.lower_expr_within_pat(e, false));
                     }
                     PatKind::TupleStruct(qself, path, pats) => {
                         let qpath = self.lower_qpath(

compiler/rustc_ast_pretty/src/pprust/state.rs

@@ -1701,7 +1701,7 @@ impl<'a> State<'a> {
                     self.print_pat(inner);
                 }
             }
-            PatKind::Lit(e) => self.print_expr(e, FixupContext::default()),
+            PatKind::Expr(e) => self.print_expr(e, FixupContext::default()),
             PatKind::Range(begin, end, Spanned { node: end_kind, .. }) => {
                 if let Some(e) = begin {
                     self.print_expr(e, FixupContext::default());

compiler/rustc_expand/src/base.rs

@@ -522,7 +522,7 @@ impl MacResult for MacEager {
                 return Some(P(ast::Pat {
                     id: ast::DUMMY_NODE_ID,
                     span: e.span,
-                    kind: PatKind::Lit(e),
+                    kind: PatKind::Expr(e),
                     tokens: None,
                 }));
             }

compiler/rustc_expand/src/build.rs

@@ -486,7 +486,7 @@ impl<'a> ExtCtxt<'a> {
         self.pat(span, PatKind::Wild)
     }
     pub fn pat_lit(&self, span: Span, expr: P<ast::Expr>) -> P<ast::Pat> {
-        self.pat(span, PatKind::Lit(expr))
+        self.pat(span, PatKind::Expr(expr))
     }
     pub fn pat_ident(&self, span: Span, ident: Ident) -> P<ast::Pat> {
         self.pat_ident_binding_mode(span, ident, ast::BindingMode::NONE)

compiler/rustc_hir/src/hir.rs

@@ -1386,7 +1386,7 @@ impl<'hir> Pat<'hir> {
 
         use PatKind::*;
         match self.kind {
-            Wild | Never | Lit(_) | Range(..) | Binding(.., None) | Path(_) | Err(_) => true,
+            Wild | Never | Expr(_) | Range(..) | Binding(.., None) | Path(_) | Err(_) => true,
             Box(s) | Deref(s) | Ref(s, _) | Binding(.., Some(s)) | Guard(s, _) => s.walk_short_(it),
             Struct(_, fields, _) => fields.iter().all(|field| field.pat.walk_short_(it)),
             TupleStruct(_, s, _) | Tuple(s, _) | Or(s) => s.iter().all(|p| p.walk_short_(it)),
@@ -1413,7 +1413,7 @@ impl<'hir> Pat<'hir> {
 
         use PatKind::*;
         match self.kind {
-            Wild | Never | Lit(_) | Range(..) | Binding(.., None) | Path(_) | Err(_) => {}
+            Wild | Never | Expr(_) | Range(..) | Binding(.., None) | Path(_) | Err(_) => {}
             Box(s) | Deref(s) | Ref(s, _) | Binding(.., Some(s)) | Guard(s, _) => s.walk_(it),
             Struct(_, fields, _) => fields.iter().for_each(|field| field.pat.walk_(it)),
             TupleStruct(_, s, _) | Tuple(s, _) | Or(s) => s.iter().for_each(|p| p.walk_(it)),
@@ -1583,8 +1583,8 @@ pub enum PatKind<'hir> {
     /// A reference pattern (e.g., `&mut (a, b)`).
     Ref(&'hir Pat<'hir>, Mutability),
 
-    /// A literal.
+    /// A literal, const block or path.
-    Lit(&'hir PatExpr<'hir>),
+    Expr(&'hir PatExpr<'hir>),
 
     /// A guard pattern (e.g., `x if guard(x)`).
     Guard(&'hir Pat<'hir>, &'hir Expr<'hir>),

compiler/rustc_hir/src/intravisit.rs

@@ -688,7 +688,7 @@ pub fn walk_pat<'v, V: Visitor<'v>>(visitor: &mut V, pattern: &'v Pat<'v>) -> V:
             try_visit!(visitor.visit_ident(ident));
             visit_opt!(visitor, visit_pat, optional_subpattern);
         }
-        PatKind::Lit(ref expression) => try_visit!(visitor.visit_pat_expr(expression)),
+        PatKind::Expr(ref expression) => try_visit!(visitor.visit_pat_expr(expression)),
         PatKind::Range(ref lower_bound, ref upper_bound, _) => {
             visit_opt!(visitor, visit_pat_expr, lower_bound);
             visit_opt!(visitor, visit_pat_expr, upper_bound);

compiler/rustc_hir_analysis/src/check/region.rs

@@ -704,7 +704,7 @@ fn resolve_local<'tcx>(
             | PatKind::Wild
             | PatKind::Never
             | PatKind::Path(_)
-            | PatKind::Lit(_)
+            | PatKind::Expr(_)
             | PatKind::Range(_, _, _)
             | PatKind::Err(_) => false,
         }

compiler/rustc_hir_pretty/src/lib.rs

@@ -1980,7 +1980,7 @@ impl<'a> State<'a> {
                     self.pclose();
                 }
             }
-            PatKind::Lit(e) => self.print_pat_expr(e),
+            PatKind::Expr(e) => self.print_pat_expr(e),
             PatKind::Range(begin, end, end_kind) => {
                 if let Some(expr) = begin {
                     self.print_pat_expr(expr);

compiler/rustc_hir_typeck/src/expr.rs

@@ -485,7 +485,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
             | hir::PatKind::Box(_)
             | hir::PatKind::Ref(_, _)
             | hir::PatKind::Deref(_)
-            | hir::PatKind::Lit(_)
+            | hir::PatKind::Expr(_)
             | hir::PatKind::Range(_, _, _)
             | hir::PatKind::Slice(_, _, _)
             | hir::PatKind::Err(_) => true,

compiler/rustc_hir_typeck/src/expr_use_visitor.rs

@@ -595,7 +595,7 @@ impl<'tcx, Cx: TypeInformationCtxt<'tcx>, D: Delegate<'tcx>> ExprUseVisitor<'tcx
                         let place_ty = place.place.ty();
                         needs_to_be_read |= self.is_multivariant_adt(place_ty, pat.span);
                     }
-                    PatKind::Lit(_) | PatKind::Range(..) => {
+                    PatKind::Expr(_) | PatKind::Range(..) => {
                         // If the PatKind is a Lit or a Range then we want
                         // to borrow discr.
                         needs_to_be_read = true;
@@ -1803,7 +1803,7 @@ impl<'tcx, Cx: TypeInformationCtxt<'tcx>, D: Delegate<'tcx>> ExprUseVisitor<'tcx
 
             PatKind::Path(_)
             | PatKind::Binding(.., None)
-            | PatKind::Lit(..)
+            | PatKind::Expr(..)
             | PatKind::Range(..)
             | PatKind::Never
             | PatKind::Wild

compiler/rustc_hir_typeck/src/pat.rs

@@ -271,7 +271,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
             PatKind::Wild | PatKind::Err(_) => expected,
             // We allow any type here; we ensure that the type is uninhabited during match checking.
             PatKind::Never => expected,
-            PatKind::Lit(lt) => self.check_pat_lit(pat.span, lt, expected, ti),
+            PatKind::Expr(lt) => self.check_pat_lit(pat.span, lt, expected, ti),
             PatKind::Range(lhs, rhs, _) => self.check_pat_range(pat.span, lhs, rhs, expected, ti),
             PatKind::Binding(ba, var_id, ident, sub) => {
                 self.check_pat_ident(pat, ba, var_id, ident, sub, expected, pat_info)
@@ -399,7 +399,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
             // As a result, we allow `if let 0 = &&0 {}` but not `if let "foo" = &&"foo" {}`.
             //
             // Call `resolve_vars_if_possible` here for inline const blocks.
-            PatKind::Lit(lt) => match self.resolve_vars_if_possible(self.check_pat_expr_unadjusted(lt)).kind() {
+            PatKind::Expr(lt) => match self.resolve_vars_if_possible(self.check_pat_expr_unadjusted(lt)).kind() {
                 ty::Ref(..) => AdjustMode::Pass,
                 _ => AdjustMode::Peel,
             },
@@ -943,7 +943,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                         | PatKind::Box(..)
                         | PatKind::Deref(_)
                         | PatKind::Ref(..)
-                        | PatKind::Lit(..)
+                        | PatKind::Expr(..)
                         | PatKind::Range(..)
                         | PatKind::Err(_) => break 'block None,
                     },
@@ -1837,7 +1837,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                     }
                 } else if inexistent_fields.len() == 1 {
                     match pat_field.pat.kind {
-                        PatKind::Lit(_)
+                        PatKind::Expr(_)
                             if !self.may_coerce(
                                 self.typeck_results.borrow().node_type(pat_field.pat.hir_id),
                                 self.field_ty(field.span, field_def, args),

compiler/rustc_lint/src/unused.rs

@@ -1220,7 +1220,7 @@ impl EarlyLintPass for UnusedParens {
             // Do not lint on `(..)` as that will result in the other arms being useless.
             Paren(_)
             // The other cases do not contain sub-patterns.
-            | Wild | Never | Rest | Lit(..) | MacCall(..) | Range(..) | Ident(.., None) | Path(..) | Err(_) => {},
+            | Wild | Never | Rest | Expr(..) | MacCall(..) | Range(..) | Ident(.., None) | Path(..) | Err(_) => {},
             // These are list-like patterns; parens can always be removed.
             TupleStruct(_, _, ps) | Tuple(ps) | Slice(ps) | Or(ps) => for p in ps {
                 self.check_unused_parens_pat(cx, p, false, false, keep_space);

compiler/rustc_mir_build/src/thir/pattern/mod.rs

@@ -324,7 +324,7 @@ impl<'a, 'tcx> PatCtxt<'a, 'tcx> {
 
             hir::PatKind::Never => PatKind::Never,
 
-            hir::PatKind::Lit(value) => self.lower_lit(value),
+            hir::PatKind::Expr(value) => self.lower_lit(value),
 
             hir::PatKind::Range(ref lo_expr, ref hi_expr, end) => {
                 let (lo_expr, hi_expr) = (lo_expr.as_deref(), hi_expr.as_deref());

compiler/rustc_parse/src/parser/pat.rs

@@ -656,14 +656,14 @@ impl<'a> Parser<'a> {
             fn visit_pat(&mut self, p: &'a Pat) -> Self::Result {
                 match &p.kind {
                     // Base expression
-                    PatKind::Err(_) | PatKind::Lit(_) => {
+                    PatKind::Err(_) | PatKind::Expr(_) => {
                         self.maybe_add_suggestions_then_emit(p.span, p.span, false)
                     }
 
                     // Sub-patterns
                     // FIXME: this doesn't work with recursive subpats (`&mut &mut <err>`)
                     PatKind::Box(subpat) | PatKind::Ref(subpat, _)
-                        if matches!(subpat.kind, PatKind::Err(_) | PatKind::Lit(_)) =>
+                        if matches!(subpat.kind, PatKind::Err(_) | PatKind::Expr(_)) =>
                     {
                         self.maybe_add_suggestions_then_emit(subpat.span, p.span, false)
                     }
@@ -766,7 +766,7 @@ impl<'a> Parser<'a> {
             if let Some(re) = self.parse_range_end() {
                 self.parse_pat_range_begin_with(const_expr, re)?
             } else {
-                PatKind::Lit(const_expr)
+                PatKind::Expr(const_expr)
             }
         } else if self.is_builtin() {
             self.parse_pat_builtin()?
@@ -833,7 +833,7 @@ impl<'a> Parser<'a> {
                         .struct_span_err(self_.token.span, msg)
                         .with_span_label(self_.token.span, format!("expected {expected}"))
                 });
-            PatKind::Lit(self.mk_expr(lo, ExprKind::Lit(lit)))
+            PatKind::Expr(self.mk_expr(lo, ExprKind::Lit(lit)))
         } else {
             // Try to parse everything else as literal with optional minus
             match self.parse_literal_maybe_minus() {
@@ -845,7 +845,7 @@ impl<'a> Parser<'a> {
 
                     match self.parse_range_end() {
                         Some(form) => self.parse_pat_range_begin_with(begin, form)?,
-                        None => PatKind::Lit(begin),
+                        None => PatKind::Expr(begin),
                     }
                 }
                 Err(err) => return self.fatal_unexpected_non_pat(err, expected),
@@ -989,7 +989,7 @@ impl<'a> Parser<'a> {
 
             match &pat.kind {
                 // recover ranges with parentheses around the `(start)..`
-                PatKind::Lit(begin)
+                PatKind::Expr(begin)
                     if self.may_recover()
                         && let Some(form) = self.parse_range_end() =>
                 {

compiler/rustc_passes/src/input_stats.rs

@@ -304,7 +304,7 @@ impl<'v> hir_visit::Visitor<'v> for StatCollector<'v> {
             Box,
             Deref,
             Ref,
-            Lit,
+            Expr,
             Guard,
             Range,
             Slice,
@@ -587,7 +587,7 @@ impl<'v> ast_visit::Visitor<'v> for StatCollector<'v> {
             Box,
             Deref,
             Ref,
-            Lit,
+            Expr,
             Range,
             Slice,
             Rest,

src/librustdoc/clean/utils.rs

@@ -314,9 +314,9 @@ pub(crate) fn name_from_pat(p: &hir::Pat<'_>) -> Symbol {
         PatKind::Box(p) => return name_from_pat(p),
         PatKind::Deref(p) => format!("deref!({})", name_from_pat(p)),
         PatKind::Ref(p, _) => return name_from_pat(p),
-        PatKind::Lit(..) => {
+        PatKind::Expr(..) => {
             warn!(
-                "tried to get argument name from PatKind::Lit, which is silly in function arguments"
+                "tried to get argument name from PatKind::Expr, which is silly in function arguments"
             );
             return Symbol::intern("()");
         }

src/tools/clippy/clippy_lints/src/default_numeric_fallback.rs

@@ -224,7 +224,7 @@ impl<'tcx> Visitor<'tcx> for NumericFallbackVisitor<'_, 'tcx> {
 
     fn visit_pat(&mut self, pat: &'tcx Pat<'_>) {
         match pat.kind {
-            PatKind::Lit(&PatExpr {
+            PatKind::Expr(&PatExpr {
                 hir_id,
                 kind: PatExprKind::Lit { lit, .. },
                 ..

src/tools/clippy/clippy_lints/src/equatable_if_let.rs

@@ -56,7 +56,7 @@ fn unary_pattern(pat: &Pat<'_>) -> bool {
         PatKind::Struct(_, a, etc) => !etc && a.iter().all(|x| unary_pattern(x.pat)),
         PatKind::Tuple(a, etc) | PatKind::TupleStruct(_, a, etc) => etc.as_opt_usize().is_none() && array_rec(a),
         PatKind::Ref(x, _) | PatKind::Box(x) | PatKind::Deref(x) | PatKind::Guard(x, _) => unary_pattern(x),
-        PatKind::Path(_) | PatKind::Lit(_) => true,
+        PatKind::Path(_) | PatKind::Expr(_) => true,
     }
 }
 

src/tools/clippy/clippy_lints/src/len_zero.rs

@@ -163,7 +163,7 @@ impl<'tcx> LateLintPass<'tcx> for LenZero {
         if let ExprKind::Let(lt) = expr.kind
             && match lt.pat.kind {
                 PatKind::Slice([], None, []) => true,
-                PatKind::Lit(lit) => match lit.kind {
+                PatKind::Expr(lit) => match lit.kind {
                     PatExprKind::Lit { lit, .. } => match lit.node {
                         LitKind::Str(lit, _) => lit.as_str().is_empty(),
                         _ => false,

src/tools/clippy/clippy_lints/src/manual_range_patterns.rs

@@ -89,7 +89,7 @@ impl LateLintPass<'_> for ManualRangePatterns {
             let mut ranges_found = Vec::new();
 
             for pat in pats {
-                if let PatKind::Lit(lit) = pat.kind
+                if let PatKind::Expr(lit) = pat.kind
                     && let Some(num) = Num::new(lit)
                 {
                     numbers_found.insert(num.val);

src/tools/clippy/clippy_lints/src/matches/match_bool.rs

@@ -21,7 +21,7 @@ pub(crate) fn check(cx: &LateContext<'_>, scrutinee: &Expr<'_>, arms: &[Arm<'_>]
             move |diag| {
                 if arms.len() == 2 {
                     // no guards
-                    let exprs = if let PatKind::Lit(arm_bool) = arms[0].pat.kind {
+                    let exprs = if let PatKind::Expr(arm_bool) = arms[0].pat.kind {
                         if let PatExprKind::Lit { lit, .. } = arm_bool.kind {
                             match lit.node {
                                 LitKind::Bool(true) => Some((arms[0].body, arms[1].body)),

src/tools/clippy/clippy_lints/src/matches/match_same_arms.rs

@@ -7,7 +7,7 @@ use rustc_arena::DroplessArena;
 use rustc_ast::ast::LitKind;
 use rustc_errors::Applicability;
 use rustc_hir::def_id::DefId;
-use rustc_hir::{Arm, Expr, PatExprKind, HirId, HirIdMap, HirIdMapEntry, HirIdSet, Pat, PatKind, RangeEnd};
+use rustc_hir::{Arm, Expr, HirId, HirIdMap, HirIdMapEntry, HirIdSet, Pat, PatExprKind, PatKind, RangeEnd};
 use rustc_lint::builtin::NON_EXHAUSTIVE_OMITTED_PATTERNS;
 use rustc_lint::{LateContext, LintContext};
 use rustc_middle::ty;
@@ -311,9 +311,9 @@ impl<'a> NormalizedPat<'a> {
                 );
                 Self::Tuple(None, pats)
             },
-            PatKind::Lit(e) => match &e.kind {
+            PatKind::Expr(e) => match &e.kind {
                 // TODO: Handle negative integers. They're currently treated as a wild match.
-                PatExprKind::Lit{ lit, negated: false } => match lit.node {
+                PatExprKind::Lit { lit, negated: false } => match lit.node {
                     LitKind::Str(sym, _) => Self::LitStr(sym),
                     LitKind::ByteStr(ref bytes, _) | LitKind::CStr(ref bytes, _) => Self::LitBytes(bytes),
                     LitKind::Byte(val) => Self::LitInt(val.into()),

src/tools/clippy/clippy_lints/src/matches/match_str_case_mismatch.rs

@@ -85,7 +85,7 @@ fn verify_case<'a>(case_method: &'a CaseMethod, arms: &'a [Arm<'_>]) -> Option<(
     };
 
     for arm in arms {
-        if let PatKind::Lit(PatExpr {
+        if let PatKind::Expr(PatExpr {
             kind: PatExprKind::Lit { lit, negated: false },
             ..
         }) = arm.pat.kind

src/tools/clippy/clippy_lints/src/matches/needless_match.rs

@@ -189,7 +189,7 @@ fn pat_same_as_expr(pat: &Pat<'_>, expr: &Expr<'_>) -> bool {
             });
         },
         // Example: `5 => 5`
-        (PatKind::Lit(pat_expr_expr), ExprKind::Lit(expr_spanned)) => {
+        (PatKind::Expr(pat_expr_expr), ExprKind::Lit(expr_spanned)) => {
             if let PatExprKind::Lit {
                 lit: pat_spanned,
                 negated: false,

src/tools/clippy/clippy_lints/src/matches/overlapping_arms.rs

@@ -57,7 +57,7 @@ fn all_ranges<'tcx>(cx: &LateContext<'tcx>, arms: &'tcx [Arm<'_>], ty: Ty<'tcx>)
                     });
                 }
 
-                if let PatKind::Lit(value) = pat.kind {
+                if let PatKind::Expr(value) = pat.kind {
                     let value = ConstEvalCtxt::new(cx)
                         .eval_pat_expr(value)?
                         .int_value(cx.tcx, cx.typeck_results().node_type(pat.hir_id))?;

src/tools/clippy/clippy_lints/src/matches/redundant_pattern_match.rs

@@ -9,7 +9,7 @@ use rustc_ast::ast::LitKind;
 use rustc_errors::Applicability;
 use rustc_hir::LangItem::{self, OptionNone, OptionSome, PollPending, PollReady, ResultErr, ResultOk};
 use rustc_hir::def::{DefKind, Res};
-use rustc_hir::{Arm, Expr, ExprKind, Node, Pat, PatKind, QPath, UnOp, PatExprKind};
+use rustc_hir::{Arm, Expr, ExprKind, Node, Pat, PatExprKind, PatKind, QPath, UnOp};
 use rustc_lint::LateContext;
 use rustc_middle::ty::{self, GenericArgKind, Ty};
 use rustc_span::{Span, Symbol, sym};
@@ -74,8 +74,8 @@ fn find_match_true<'tcx>(
     span: Span,
     message: &'static str,
 ) {
-    if let PatKind::Lit(lit) = pat.kind
+    if let PatKind::Expr(lit) = pat.kind
-        && let PatExprKind::Lit{ lit, negated: false } = lit.kind
+        && let PatExprKind::Lit { lit, negated: false } = lit.kind
         && let LitKind::Bool(pat_is_true) = lit.node
     {
         let mut applicability = Applicability::MachineApplicable;

src/tools/clippy/clippy_lints/src/matches/single_match.rs

@@ -9,7 +9,7 @@ use rustc_arena::DroplessArena;
 use rustc_errors::Applicability;
 use rustc_hir::def::{DefKind, Res};
 use rustc_hir::intravisit::{Visitor, walk_pat};
-use rustc_hir::{Arm, Expr, ExprKind, HirId, Node, Pat, PatKind, QPath, StmtKind, PatExpr, PatExprKind};
+use rustc_hir::{Arm, Expr, ExprKind, HirId, Node, Pat, PatExpr, PatExprKind, PatKind, QPath, StmtKind};
 use rustc_lint::LateContext;
 use rustc_middle::ty::{self, AdtDef, TyCtxt, TypeckResults, VariantDef};
 use rustc_span::{Span, sym};
@@ -114,7 +114,7 @@ fn report_single_pattern(cx: &LateContext<'_>, ex: &Expr<'_>, arm: &Arm<'_>, exp
     }
 
     let (pat, pat_ref_count) = peel_hir_pat_refs(arm.pat);
-    let (msg, sugg) = if let PatKind::Path(_) | PatKind::Lit(_) = pat.kind
+    let (msg, sugg) = if let PatKind::Path(_) | PatKind::Expr(_) = pat.kind
         && let (ty, ty_ref_count) = peel_middle_ty_refs(cx.typeck_results().expr_ty(ex))
         && let Some(spe_trait_id) = cx.tcx.lang_items().structural_peq_trait()
         && let Some(pe_trait_id) = cx.tcx.lang_items().eq_trait()
@@ -126,7 +126,7 @@ fn report_single_pattern(cx: &LateContext<'_>, ex: &Expr<'_>, arm: &Arm<'_>, exp
         // scrutinee derives PartialEq and the pattern is a constant.
         let pat_ref_count = match pat.kind {
             // string literals are already a reference.
-            PatKind::Lit(PatExpr {
+            PatKind::Expr(PatExpr {
                 kind: PatExprKind::Lit { lit, negated: false },
                 ..
             }) if lit.node.is_str() || lit.node.is_bytestr() => pat_ref_count + 1,
@@ -384,7 +384,7 @@ impl<'a> PatState<'a> {
 
             PatKind::Wild
             | PatKind::Binding(_, _, _, None)
-            | PatKind::Lit(_)
+            | PatKind::Expr(_)
             | PatKind::Range(..)
             | PatKind::Path(_)
             | PatKind::Never

src/tools/clippy/clippy_lints/src/string_patterns.rs

@@ -171,7 +171,7 @@ fn check_manual_pattern_char_comparison(cx: &LateContext<'_>, method_arg: &Expr<
                         return ControlFlow::Break(());
                     }
                     if arm.pat.walk_short(|pat| match pat.kind {
-                        PatKind::Lit(expr) if let PatExprKind::Lit { lit, negated: false } = expr.kind => {
+                        PatKind::Expr(expr) if let PatExprKind::Lit { lit, negated: false } = expr.kind => {
                             if let LitKind::Char(_) = lit.node {
                                 set_char_spans.push(lit.span);
                             }

src/tools/clippy/clippy_lints/src/unnested_or_patterns.rs

@@ -92,7 +92,7 @@ impl EarlyLintPass for UnnestedOrPatterns {
 }
 
 fn lint_unnested_or_patterns(cx: &EarlyContext<'_>, pat: &Pat) {
-    if let Ident(.., None) | Lit(_) | Wild | Path(..) | Range(..) | Rest | MacCall(_) = pat.kind {
+    if let Ident(.., None) | Expr(_) | Wild | Path(..) | Range(..) | Rest | MacCall(_) = pat.kind {
         // This is a leaf pattern, so cloning is unprofitable.
         return;
     }
@@ -228,7 +228,7 @@ fn transform_with_focus_on_idx(alternatives: &mut ThinVec<P<Pat>>, focus_idx: us
         // Therefore they are not some form of constructor `C`,
         // with which a pattern `C(p_0)` may be formed,
         // which we would want to join with other `C(p_j)`s.
-        Ident(.., None) | Lit(_) | Wild | Err(_) | Never | Path(..) | Range(..) | Rest | MacCall(_)
+        Ident(.., None) | Expr(_) | Wild | Err(_) | Never | Path(..) | Range(..) | Rest | MacCall(_)
         // Skip immutable refs, as grouping them saves few characters,
         // and almost always requires adding parens (increasing noisiness).
         // In the case of only two patterns, replacement adds net characters.

src/tools/clippy/clippy_lints/src/utils/author.rs

@@ -738,10 +738,10 @@ impl<'a, 'tcx> PrintVisitor<'a, 'tcx> {
                 kind!("Guard({pat}, {cond})");
                 self.pat(pat);
                 self.expr(cond);
-            }
+            },
-            PatKind::Lit(lit_expr) => {
+            PatKind::Expr(lit_expr) => {
                 bind!(self, lit_expr);
-                kind!("Lit({lit_expr})");
+                kind!("Expr({lit_expr})");
                 self.pat_expr(lit_expr);
             },
             PatKind::Range(start, end, end_kind) => {

src/tools/clippy/clippy_utils/src/ast_utils/mod.rs

@@ -36,7 +36,7 @@ pub fn eq_pat(l: &Pat, r: &Pat) -> bool {
         (Paren(l), _) => eq_pat(l, r),
         (_, Paren(r)) => eq_pat(l, r),
         (Wild, Wild) | (Rest, Rest) => true,
-        (Lit(l), Lit(r)) => eq_expr(l, r),
+        (Expr(l), Expr(r)) => eq_expr(l, r),
         (Ident(b1, i1, s1), Ident(b2, i2, s2)) => {
             b1 == b2 && eq_id(*i1, *i2) && both(s1.as_deref(), s2.as_deref(), eq_pat)
         },

src/tools/clippy/clippy_utils/src/hir_utils.rs

@@ -525,7 +525,7 @@ impl HirEqInterExpr<'_, '_, '_> {
                 eq
             },
             (PatKind::Path(l), PatKind::Path(r)) => self.eq_qpath(l, r),
-            (&PatKind::Lit(l), &PatKind::Lit(r)) => self.eq_pat_expr(l, r),
+            (&PatKind::Expr(l), &PatKind::Expr(r)) => self.eq_pat_expr(l, r),
             (&PatKind::Tuple(l, ls), &PatKind::Tuple(r, rs)) => ls == rs && over(l, r, |l, r| self.eq_pat(l, r)),
             (&PatKind::Range(ref ls, ref le, li), &PatKind::Range(ref rs, ref re, ri)) => {
                 both(ls.as_ref(), rs.as_ref(), |a, b| self.eq_pat_expr(a, b))
@@ -1114,7 +1114,7 @@ impl<'a, 'tcx> SpanlessHash<'a, 'tcx> {
                 }
             },
             PatKind::Box(pat) | PatKind::Deref(pat) => self.hash_pat(pat),
-            PatKind::Lit(expr) => self.hash_pat_expr(expr),
+            PatKind::Expr(expr) => self.hash_pat_expr(expr),
             PatKind::Or(pats) => {
                 for pat in pats {
                     self.hash_pat(pat);

src/tools/clippy/clippy_utils/src/lib.rs

@@ -1777,7 +1777,7 @@ pub fn is_refutable(cx: &LateContext<'_>, pat: &Pat<'_>) -> bool {
                 },
             }
         },
-        PatKind::Lit(..) | PatKind::Range(..) | PatKind::Err(_) | PatKind::Deref(_) | PatKind::Guard(..) => true,
+        PatKind::Expr(..) | PatKind::Range(..) | PatKind::Err(_) | PatKind::Deref(_) | PatKind::Guard(..) => true,
     }
 }
 

src/tools/clippy/tests/ui/author/if.stdout

@@ -30,7 +30,7 @@ if let StmtKind::Let(local) = stmt.kind
 }
 if let ExprKind::If(cond, then, Some(else_expr)) = expr.kind
     && let ExprKind::Let(let_expr) = cond.kind
-    && let PatKind::Lit(lit_expr) = let_expr.pat.kind
+    && let PatKind::Expr(lit_expr) = let_expr.pat.kind
     && let PatExprKind::Lit{ref lit, negated } = lit_expr.kind
     && let LitKind::Bool(true) = lit.node
     && let ExprKind::Path(ref qpath) = let_expr.init.kind

src/tools/clippy/tests/ui/author/loop.stdout

@@ -76,7 +76,7 @@ if let Some(higher::While { condition: condition, body: body }) = higher::While:
     // report your lint here
 }
 if let Some(higher::WhileLet { let_pat: let_pat, let_expr: let_expr, if_then: if_then }) = higher::WhileLet::hir(expr)
-    && let PatKind::Lit(lit_expr) = let_pat.kind
+    && let PatKind::Expr(lit_expr) = let_pat.kind
     && let PatExprKind::Lit{ref lit, negated } = lit_expr.kind
     && let LitKind::Bool(true) = lit.node
     && let ExprKind::Path(ref qpath) = let_expr.kind

src/tools/clippy/tests/ui/author/matches.stdout

@@ -4,13 +4,13 @@ if let StmtKind::Let(local) = stmt.kind
     && let ExprKind::Lit(ref lit) = scrutinee.kind
     && let LitKind::Int(42, LitIntType::Unsuffixed) = lit.node
     && arms.len() == 3
-    && let PatKind::Lit(lit_expr) = arms[0].pat.kind
+    && let PatKind::Expr(lit_expr) = arms[0].pat.kind
     && let PatExprKind::Lit{ref lit1, negated } = lit_expr.kind
     && let LitKind::Int(16, LitIntType::Unsuffixed) = lit1.node
     && arms[0].guard.is_none()
     && let ExprKind::Lit(ref lit2) = arms[0].body.kind
     && let LitKind::Int(5, LitIntType::Unsuffixed) = lit2.node
-    && let PatKind::Lit(lit_expr1) = arms[1].pat.kind
+    && let PatKind::Expr(lit_expr1) = arms[1].pat.kind
     && let PatExprKind::Lit{ref lit3, negated1 } = lit_expr1.kind
     && let LitKind::Int(17, LitIntType::Unsuffixed) = lit3.node
     && arms[1].guard.is_none()

src/tools/clippy/tests/ui/author/struct.stdout

@@ -23,7 +23,7 @@ if let PatKind::Struct(ref qpath, fields, false) = arm.pat.kind
     && match_qpath(qpath, &["Test"])
     && fields.len() == 1
     && fields[0].ident.as_str() == "field"
-    && let PatKind::Lit(lit_expr) = fields[0].pat.kind
+    && let PatKind::Expr(lit_expr) = fields[0].pat.kind
     && let PatExprKind::Lit{ref lit, negated } = lit_expr.kind
     && let LitKind::Int(1, LitIntType::Unsuffixed) = lit.node
     && arm.guard.is_none()
@@ -36,7 +36,7 @@ if let PatKind::Struct(ref qpath, fields, false) = arm.pat.kind
 if let PatKind::TupleStruct(ref qpath, fields, None) = arm.pat.kind
     && match_qpath(qpath, &["TestTuple"])
     && fields.len() == 1
-    && let PatKind::Lit(lit_expr) = fields[0].kind
+    && let PatKind::Expr(lit_expr) = fields[0].kind
     && let PatExprKind::Lit{ref lit, negated } = lit_expr.kind
     && let LitKind::Int(1, LitIntType::Unsuffixed) = lit.node
     && arm.guard.is_none()

src/tools/rustfmt/src/patterns.rs

@@ -42,7 +42,7 @@ fn is_short_pattern_inner(pat: &ast::Pat) -> bool {
         | ast::PatKind::Never
         | ast::PatKind::Wild
         | ast::PatKind::Err(_)
-        | ast::PatKind::Lit(_) => true,
+        | ast::PatKind::Expr(_) => true,
         ast::PatKind::Ident(_, _, ref pat) => pat.is_none(),
         ast::PatKind::Struct(..)
         | ast::PatKind::MacCall(..)
@@ -293,7 +293,7 @@ impl Rewrite for Pat {
                 let path_str = rewrite_path(context, PathContext::Expr, q_self, path, shape)?;
                 rewrite_tuple_pat(pat_vec, Some(path_str), self.span, context, shape)
             }
-            PatKind::Lit(ref expr) => expr.rewrite_result(context, shape),
+            PatKind::Expr(ref expr) => expr.rewrite_result(context, shape),
             PatKind::Slice(ref slice_pat)
                 if context.config.style_edition() <= StyleEdition::Edition2021 =>
             {
@@ -530,7 +530,7 @@ pub(crate) fn can_be_overflowed_pat(
             ast::PatKind::Ref(ref p, _) | ast::PatKind::Box(ref p) => {
                 can_be_overflowed_pat(context, &TuplePatField::Pat(p), len)
             }
-            ast::PatKind::Lit(ref expr) => can_be_overflowed_expr(context, expr, len),
+            ast::PatKind::Expr(ref expr) => can_be_overflowed_expr(context, expr, len),
             _ => false,
         },
         TuplePatField::Dotdot(..) => false,

tests/ui/macros/stringify.rs

@@ -569,7 +569,7 @@ fn test_pat() {
     c1!(pat, [ &pat ], "&pat");
     c1!(pat, [ &mut pat ], "&mut pat");
 
-    // PatKind::Lit
+    // PatKind::Expr
     c1!(pat, [ 1_000_i8 ], "1_000_i8");
 
     // PatKind::Range

tests/ui/pattern/patkind-litrange-no-expr.rs

@@ -6,7 +6,7 @@ macro_rules! enum_number {
 
         fn foo(value: i32) -> Option<$name> {
             match value {
-                $( $value => Some($name::$variant), )* // PatKind::Lit
+                $( $value => Some($name::$variant), )* // PatKind::Expr
                 $( $value ..= 42 => Some($name::$variant), )* // PatKind::Range
                 _ => None
             }

tests/ui/unpretty/expanded-exhaustive.rs

@@ -651,8 +651,8 @@ mod patterns {
         let &mut pat;
     }
 
-    /// PatKind::Lit
+    /// PatKind::Expr
-    fn pat_lit() {
+    fn pat_expr() {
         let 1_000_i8;
         let -"";
     }

tests/ui/unpretty/expanded-exhaustive.stdout

@@ -567,8 +567,8 @@ mod patterns {
     fn pat_deref() { let deref!(pat); }
     /// PatKind::Ref
     fn pat_ref() { let &pat; let &mut pat; }
-    /// PatKind::Lit
+    /// PatKind::Expr
-    fn pat_lit() { let 1_000_i8; let -""; }
+    fn pat_expr() { let 1_000_i8; let -""; }
     /// PatKind::Range
     fn pat_range() { let ..1; let 0..; let 0..1; let 0..=1; let -2..=-1; }
     /// PatKind::Slice