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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-18 02:49:50 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-18 02:49:50 +0000
commit9835e2ae736235810b4ea1c162ca5e65c547e770 (patch)
tree3fcebf40ed70e581d776a8a4c65923e8ec20e026 /compiler/rustc_borrowck/src/def_use.rs
parentReleasing progress-linux version 1.70.0+dfsg2-1~progress7.99u1. (diff)
downloadrustc-9835e2ae736235810b4ea1c162ca5e65c547e770.tar.xz
rustc-9835e2ae736235810b4ea1c162ca5e65c547e770.zip
Merging upstream version 1.71.1+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'compiler/rustc_borrowck/src/def_use.rs')
-rw-r--r--compiler/rustc_borrowck/src/def_use.rs8
1 files changed, 5 insertions, 3 deletions
diff --git a/compiler/rustc_borrowck/src/def_use.rs b/compiler/rustc_borrowck/src/def_use.rs
index 6deb4e361..b719a610e 100644
--- a/compiler/rustc_borrowck/src/def_use.rs
+++ b/compiler/rustc_borrowck/src/def_use.rs
@@ -51,12 +51,16 @@ pub fn categorize(context: PlaceContext) -> Option<DefUse> {
PlaceContext::NonMutatingUse(NonMutatingUseContext::SharedBorrow) |
PlaceContext::NonMutatingUse(NonMutatingUseContext::ShallowBorrow) |
+ // `PlaceMention` and `AscribeUserType` both evaluate the place, which must not
+ // contain dangling references.
+ PlaceContext::NonMutatingUse(NonMutatingUseContext::PlaceMention) |
+ PlaceContext::NonUse(NonUseContext::AscribeUserTy(_)) |
+
PlaceContext::MutatingUse(MutatingUseContext::AddressOf) |
PlaceContext::NonMutatingUse(NonMutatingUseContext::AddressOf) |
PlaceContext::NonMutatingUse(NonMutatingUseContext::Inspect) |
PlaceContext::NonMutatingUse(NonMutatingUseContext::Copy) |
PlaceContext::NonMutatingUse(NonMutatingUseContext::Move) |
- PlaceContext::NonUse(NonUseContext::AscribeUserTy) |
PlaceContext::MutatingUse(MutatingUseContext::Retag) =>
Some(DefUse::Use),
@@ -71,8 +75,6 @@ pub fn categorize(context: PlaceContext) -> Option<DefUse> {
PlaceContext::MutatingUse(MutatingUseContext::Drop) =>
Some(DefUse::Drop),
- // This statement exists to help unsafeck. It does not require the place to be live.
- PlaceContext::NonUse(NonUseContext::PlaceMention) => None,
// Debug info is neither def nor use.
PlaceContext::NonUse(NonUseContext::VarDebugInfo) => None,