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reference tracking issue

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This commit is contained in:
Ralf Jung 2019-11-06 11:07:00 +01:00
parent 503026b622
commit 6fd909b2b1
1 changed files with 4 additions and 3 deletions
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7
src/librustc_target/abi/mod.rs
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@ -1077,10 +1077,11 @@ impl<'a, Ty> TyLayout<'a, Ty> {
match self.variants {
Variants::Multiple { .. } =>
if zero {
// FIXME: could we identify the variant with discriminant 0, check that?
// FIXME(#66151):
// could we identify the variant with discriminant 0, check that?
true
} else {
// FIXME: This needs to have some sort of discriminant,
// FIXME(#66151): This needs to have some sort of discriminant,
// which cannot be undef. But for now we are conservative.
true
},
@ -1089,7 +1090,7 @@ impl<'a, Ty> TyLayout<'a, Ty> {
match self.fields {
FieldPlacement::Union(..) => true, // An all-0 unit is fine.
FieldPlacement::Array { .. } =>
// FIXME: The widely use smallvec 0.6 creates uninit arrays
// FIXME(#66151): The widely use smallvec 0.6 creates uninit arrays
// with any element type, so let us not (yet) complain about that.
// count == 0 ||
// self.field(cx, 0).to_result()?.might_permit_raw_init(cx, zero)?