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Add warning label to try_as_mplace

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This commit is contained in:
Oliver Scherer 2019-12-27 01:00:05 +01:00
parent a1990db7c6
commit f7f59522b6
1 changed files with 4 additions and 0 deletions
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4
src/librustc_mir/interpret/place.rs
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@ -241,6 +241,8 @@ impl<'tcx, Tag> MPlaceTy<'tcx, Tag> {
// These are defined here because they produce a place. // These are defined here because they produce a place.
impl<'tcx, Tag: ::std::fmt::Debug + Copy> OpTy<'tcx, Tag> { impl<'tcx, Tag: ::std::fmt::Debug + Copy> OpTy<'tcx, Tag> {
#[inline(always)] #[inline(always)]
/// Note: do not call `as_ref` on the resulting place. This function should only be used to
/// read from the resulting mplace, not to get its address back.
pub fn try_as_mplace( pub fn try_as_mplace(
self, self,
cx: &impl HasDataLayout, cx: &impl HasDataLayout,
@ -255,6 +257,8 @@ impl<'tcx, Tag: ::std::fmt::Debug + Copy> OpTy<'tcx, Tag> {
} }
#[inline(always)] #[inline(always)]
/// Note: do not call `as_ref` on the resulting place. This function should only be used to
/// read from the resulting mplace, not to get its address back.
pub fn assert_mem_place(self, cx: &impl HasDataLayout) -> MPlaceTy<'tcx, Tag> { pub fn assert_mem_place(self, cx: &impl HasDataLayout) -> MPlaceTy<'tcx, Tag> {
self.try_as_mplace(cx).unwrap() self.try_as_mplace(cx).unwrap()
} }