bjoernager/rust
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Warn against redundant use<...>

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This commit is contained in:
Michael Goulet 2024-04-20 11:22:06 -04:00
parent f3fb727b08
commit 1529c661e4
10 changed files with 276 additions and 118 deletions
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15
compiler/rustc_ast_lowering/src/lib.rs
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@ -1407,7 +1407,7 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> {
bounds,
fn_kind,
itctx,
precise_capturing.as_deref().map(|(args, _)| args.as_slice()),
precise_capturing.as_deref().map(|(args, span)| (args.as_slice(), *span)),
),
ImplTraitContext::Universal => {
if let Some(&(_, span)) = precise_capturing.as_deref() {
@ -1523,7 +1523,7 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> {
bounds: &GenericBounds,
fn_kind: Option<FnDeclKind>,
itctx: ImplTraitContext,
precise_capturing_args: Option<&[PreciseCapturingArg]>,
precise_capturing_args: Option<(&[PreciseCapturingArg], Span)>,
) -> hir::TyKind<'hir> {
// Make sure we know that some funky desugaring has been going on here.
// This is a first: there is code in other places like for loop
@ -1533,7 +1533,7 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> {
let opaque_ty_span = self.mark_span_with_reason(DesugaringKind::OpaqueTy, span, None);
let captured_lifetimes_to_duplicate =
if let Some(precise_capturing) = precise_capturing_args {
if let Some((precise_capturing, _)) = precise_capturing_args {
// We'll actually validate these later on; all we need is the list of
// lifetimes to duplicate during this portion of lowering.
precise_capturing
@ -1607,7 +1607,7 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> {
captured_lifetimes_to_duplicate: FxIndexSet<Lifetime>,
span: Span,
opaque_ty_span: Span,
precise_capturing_args: Option<&[PreciseCapturingArg]>,
precise_capturing_args: Option<(&[PreciseCapturingArg], Span)>,
lower_item_bounds: impl FnOnce(&mut Self) -> &'hir [hir::GenericBound<'hir>],
) -> hir::TyKind<'hir> {
let opaque_ty_def_id = self.create_def(
@ -1698,8 +1698,11 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> {
this.with_remapping(captured_to_synthesized_mapping, |this| {
(
lower_item_bounds(this),
precise_capturing_args.map(|precise_capturing| {
this.lower_precise_capturing_args(precise_capturing)
precise_capturing_args.map(|(precise_capturing, span)| {
(
this.lower_precise_capturing_args(precise_capturing),
this.lower_span(span),
)
}),
)
});