diff options
Diffstat (limited to 'src/tools/clippy/clippy_lints/src/entry.rs')
-rw-r--r-- | src/tools/clippy/clippy_lints/src/entry.rs | 48 |
1 files changed, 15 insertions, 33 deletions
diff --git a/src/tools/clippy/clippy_lints/src/entry.rs b/src/tools/clippy/clippy_lints/src/entry.rs index e70df3f53..b44e62435 100644 --- a/src/tools/clippy/clippy_lints/src/entry.rs +++ b/src/tools/clippy/clippy_lints/src/entry.rs @@ -65,28 +65,24 @@ declare_lint_pass!(HashMapPass => [MAP_ENTRY]); impl<'tcx> LateLintPass<'tcx> for HashMapPass { #[expect(clippy::too_many_lines)] fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &'tcx Expr<'_>) { - let (cond_expr, then_expr, else_expr) = match higher::If::hir(expr) { - Some(higher::If { cond, then, r#else }) => (cond, then, r#else), - _ => return, + let Some(higher::If { cond: cond_expr, then: then_expr, r#else: else_expr }) = higher::If::hir(expr) else { + return }; - let (map_ty, contains_expr) = match try_parse_contains(cx, cond_expr) { - Some(x) => x, - None => return, + let Some((map_ty, contains_expr)) = try_parse_contains(cx, cond_expr) else { + return }; - let then_search = match find_insert_calls(cx, &contains_expr, then_expr) { - Some(x) => x, - None => return, + let Some(then_search) = find_insert_calls(cx, &contains_expr, then_expr) else { + return }; let mut app = Applicability::MachineApplicable; let map_str = snippet_with_context(cx, contains_expr.map.span, contains_expr.call_ctxt, "..", &mut app).0; let key_str = snippet_with_context(cx, contains_expr.key.span, contains_expr.call_ctxt, "..", &mut app).0; let sugg = if let Some(else_expr) = else_expr { - let else_search = match find_insert_calls(cx, &contains_expr, else_expr) { - Some(search) => search, - None => return, + let Some(else_search) = find_insert_calls(cx, &contains_expr, else_expr) else { + return; }; if then_search.edits.is_empty() && else_search.edits.is_empty() { @@ -113,13 +109,8 @@ impl<'tcx> LateLintPass<'tcx> for HashMapPass { ), }; format!( - "if let {}::{} = {}.entry({}) {} else {}", + "if let {}::{entry_kind} = {map_str}.entry({key_str}) {then_str} else {else_str}", map_ty.entry_path(), - entry_kind, - map_str, - key_str, - then_str, - else_str, ) } else { // if .. { insert } else { insert } @@ -137,16 +128,11 @@ impl<'tcx> LateLintPass<'tcx> for HashMapPass { let indent_str = snippet_indent(cx, expr.span); let indent_str = indent_str.as_deref().unwrap_or(""); format!( - "match {}.entry({}) {{\n{indent} {entry}::{} => {}\n\ - {indent} {entry}::{} => {}\n{indent}}}", - map_str, - key_str, - then_entry, + "match {map_str}.entry({key_str}) {{\n{indent_str} {entry}::{then_entry} => {}\n\ + {indent_str} {entry}::{else_entry} => {}\n{indent_str}}}", reindent_multiline(then_str.into(), true, Some(4 + indent_str.len())), - else_entry, reindent_multiline(else_str.into(), true, Some(4 + indent_str.len())), entry = map_ty.entry_path(), - indent = indent_str, ) } } else { @@ -163,20 +149,16 @@ impl<'tcx> LateLintPass<'tcx> for HashMapPass { then_search.snippet_occupied(cx, then_expr.span, &mut app) }; format!( - "if let {}::{} = {}.entry({}) {}", + "if let {}::{entry_kind} = {map_str}.entry({key_str}) {body_str}", map_ty.entry_path(), - entry_kind, - map_str, - key_str, - body_str, ) } else if let Some(insertion) = then_search.as_single_insertion() { let value_str = snippet_with_context(cx, insertion.value.span, then_expr.span.ctxt(), "..", &mut app).0; if contains_expr.negated { if insertion.value.can_have_side_effects() { - format!("{}.entry({}).or_insert_with(|| {});", map_str, key_str, value_str) + format!("{map_str}.entry({key_str}).or_insert_with(|| {value_str});") } else { - format!("{}.entry({}).or_insert({});", map_str, key_str, value_str) + format!("{map_str}.entry({key_str}).or_insert({value_str});") } } else { // TODO: suggest using `if let Some(v) = map.get_mut(k) { .. }` here. @@ -186,7 +168,7 @@ impl<'tcx> LateLintPass<'tcx> for HashMapPass { } else { let block_str = then_search.snippet_closure(cx, then_expr.span, &mut app); if contains_expr.negated { - format!("{}.entry({}).or_insert_with(|| {});", map_str, key_str, block_str) + format!("{map_str}.entry({key_str}).or_insert_with(|| {block_str});") } else { // TODO: suggest using `if let Some(v) = map.get_mut(k) { .. }` here. // This would need to be a different lint. |