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Merge remote-tracking branch 'upstream/master' into rustup

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Philipp Krones 2024-03-21 22:05:29 +01:00
commit 7d42d736c5
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GPG key ID: 1CA0DF2AF59D68A5
195 changed files with 4233 additions and 1076 deletions
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35
clippy_lints/src/returns.rs
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@ -1,4 +1,4 @@
use clippy_utils::diagnostics::{span_lint_and_sugg, span_lint_and_then, span_lint_hir_and_then};
use clippy_utils::diagnostics::{span_lint_and_sugg, span_lint_hir_and_then};
use clippy_utils::source::{snippet_opt, snippet_with_context};
use clippy_utils::sugg::has_enclosing_paren;
use clippy_utils::visitors::{for_each_expr_with_closures, Descend};
@ -380,7 +380,7 @@ fn check_final_expr<'tcx>(
return;
}
emit_return_lint(cx, ret_span, semi_spans, &replacement);
emit_return_lint(cx, ret_span, semi_spans, &replacement, expr.hir_id);
},
ExprKind::If(_, then, else_clause_opt) => {
check_block_return(cx, &then.kind, peeled_drop_expr.span, semi_spans.clone());
@ -415,18 +415,31 @@ fn expr_contains_conjunctive_ifs<'tcx>(expr: &'tcx Expr<'tcx>) -> bool {
contains_if(expr, false)
}
fn emit_return_lint(cx: &LateContext<'_>, ret_span: Span, semi_spans: Vec<Span>, replacement: &RetReplacement<'_>) {
fn emit_return_lint(
cx: &LateContext<'_>,
ret_span: Span,
semi_spans: Vec<Span>,
replacement: &RetReplacement<'_>,
at: HirId,
) {
if ret_span.from_expansion() {
return;
}
span_lint_and_then(cx, NEEDLESS_RETURN, ret_span, "unneeded `return` statement", |diag| {
let suggestions = std::iter::once((ret_span, replacement.to_string()))
.chain(semi_spans.into_iter().map(|span| (span, String::new())))
.collect();
span_lint_hir_and_then(
cx,
NEEDLESS_RETURN,
at,
ret_span,
"unneeded `return` statement",
|diag| {
let suggestions = std::iter::once((ret_span, replacement.to_string()))
.chain(semi_spans.into_iter().map(|span| (span, String::new())))
.collect();
diag.multipart_suggestion_verbose(replacement.sugg_help(), suggestions, replacement.applicability());
});
diag.multipart_suggestion_verbose(replacement.sugg_help(), suggestions, replacement.applicability());
},
);
}
fn last_statement_borrows<'tcx>(cx: &LateContext<'tcx>, expr: &'tcx Expr<'tcx>) -> bool {
@ -452,8 +465,8 @@ fn last_statement_borrows<'tcx>(cx: &LateContext<'tcx>, expr: &'tcx Expr<'tcx>)
// Go backwards while encountering whitespace and extend the given Span to that point.
fn extend_span_to_previous_non_ws(cx: &LateContext<'_>, sp: Span) -> Span {
if let Ok(prev_source) = cx.sess().source_map().span_to_prev_source(sp) {
let ws = [' ', '\t', '\n'];
if let Some(non_ws_pos) = prev_source.rfind(|c| !ws.contains(&c)) {
let ws = [b' ', b'\t', b'\n'];
if let Some(non_ws_pos) = prev_source.bytes().rposition(|c| !ws.contains(&c)) {
let len = prev_source.len() - non_ws_pos - 1;
return sp.with_lo(sp.lo() - BytePos::from_usize(len));
}