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Streamline build_skip_move_check_fns.

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It's just a `filter_map(...).collect()`.
This commit is contained in:
Nicholas Nethercote 2023-10-18 14:34:53 +11:00
parent 55c5ab9fbc
commit 4f923376b6
1 changed files with 10 additions and 31 deletions
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41
compiler/rustc_monomorphize/src/collector.rs
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@ -1381,17 +1381,6 @@ fn collect_alloc<'tcx>(tcx: TyCtxt<'tcx>, alloc_id: AllocId, output: &mut MonoIt
}
}
fn add_assoc_fn<'tcx>(
tcx: TyCtxt<'tcx>,
def_id: Option<DefId>,
fn_ident: Ident,
skip_move_check_fns: &mut Vec<DefId>,
) {
if let Some(def_id) = def_id.and_then(|def_id| assoc_fn_of_type(tcx, def_id, fn_ident)) {
skip_move_check_fns.push(def_id);
}
}
fn assoc_fn_of_type<'tcx>(tcx: TyCtxt<'tcx>, def_id: DefId, fn_ident: Ident) -> Option<DefId> {
for impl_def_id in tcx.inherent_impls(def_id) {
if let Some(new) = tcx.associated_items(impl_def_id).find_by_name_and_kind(
@ -1407,26 +1396,16 @@ fn assoc_fn_of_type<'tcx>(tcx: TyCtxt<'tcx>, def_id: DefId, fn_ident: Ident) ->
}
fn build_skip_move_check_fns(tcx: TyCtxt<'_>) -> Vec<DefId> {
let mut skip_move_check_fns = vec![];
add_assoc_fn(
tcx,
tcx.lang_items().owned_box(),
Ident::from_str("new"),
&mut skip_move_check_fns,
);
add_assoc_fn(
tcx,
tcx.get_diagnostic_item(sym::Arc),
Ident::from_str("new"),
&mut skip_move_check_fns,
);
add_assoc_fn(
tcx,
tcx.get_diagnostic_item(sym::Rc),
Ident::from_str("new"),
&mut skip_move_check_fns,
);
skip_move_check_fns
let fns = [
(tcx.lang_items().owned_box(), "new"),
(tcx.get_diagnostic_item(sym::Rc), "new"),
(tcx.get_diagnostic_item(sym::Arc), "new"),
];
fns.into_iter()
.filter_map(|(def_id, fn_name)| {
def_id.and_then(|def_id| assoc_fn_of_type(tcx, def_id, Ident::from_str(fn_name)))
})
.collect::<Vec<_>>()
}
/// Scans the MIR in order to find function calls, closures, and drop-glue.