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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:18:32 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:18:32 +0000 |
commit | 4547b622d8d29df964fa2914213088b148c498fc (patch) | |
tree | 9fc6b25f3c3add6b745be9a2400a6e96140046e9 /compiler/rustc_middle/src/middle/lang_items.rs | |
parent | Releasing progress-linux version 1.66.0+dfsg1-1~progress7.99u1. (diff) | |
download | rustc-4547b622d8d29df964fa2914213088b148c498fc.tar.xz rustc-4547b622d8d29df964fa2914213088b148c498fc.zip |
Merging upstream version 1.67.1+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'compiler/rustc_middle/src/middle/lang_items.rs')
-rw-r--r-- | compiler/rustc_middle/src/middle/lang_items.rs | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/compiler/rustc_middle/src/middle/lang_items.rs b/compiler/rustc_middle/src/middle/lang_items.rs index 31c20fa14..343ea1f00 100644 --- a/compiler/rustc_middle/src/middle/lang_items.rs +++ b/compiler/rustc_middle/src/middle/lang_items.rs @@ -27,7 +27,10 @@ impl<'tcx> TyCtxt<'tcx> { }) } - pub fn fn_trait_kind_from_lang_item(self, id: DefId) -> Option<ty::ClosureKind> { + /// Given a [`DefId`] of a [`Fn`], [`FnMut`] or [`FnOnce`] traits, + /// returns a corresponding [`ty::ClosureKind`]. + /// For any other [`DefId`] return `None`. + pub fn fn_trait_kind_from_def_id(self, id: DefId) -> Option<ty::ClosureKind> { let items = self.lang_items(); match Some(id) { x if x == items.fn_trait() => Some(ty::ClosureKind::Fn), @@ -37,8 +40,9 @@ impl<'tcx> TyCtxt<'tcx> { } } - pub fn is_weak_lang_item(self, item_def_id: DefId) -> bool { - self.lang_items().is_weak_lang_item(item_def_id) + /// Returns `true` if `id` is a `DefId` of [`Fn`], [`FnMut`] or [`FnOnce`] traits. + pub fn is_fn_trait(self, id: DefId) -> bool { + self.fn_trait_kind_from_def_id(id).is_some() } } |