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AST: Re-baseline MemorySafetyAttributes feature.

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This commit is contained in:
Allan Shortlidge
2025-07-29 09:01:14 -07:00
parent b8441c1c5d
commit 491a43a66b
5 changed files with 1 additions and 63 deletions
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29
lib/AST/FeatureSet.cpp
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@@ -451,35 +451,6 @@ static bool usesFeatureCDecl(Decl *decl) {
return attr && !attr->Underscored;
}
static bool usesFeatureMemorySafetyAttributes(Decl *decl) {
if (decl->getAttrs().hasAttribute<SafeAttr>() ||
decl->getAttrs().hasAttribute<UnsafeAttr>())
return true;
IterableDeclContext *idc;
if (auto nominal = dyn_cast<NominalTypeDecl>(decl))
idc = nominal;
else if (auto ext = dyn_cast<ExtensionDecl>(decl))
idc = ext;
else
idc = nullptr;
// Look for an @unsafe conformance ascribed to this declaration.
if (idc) {
auto conformances = idc->getLocalConformances();
for (auto conformance : conformances) {
auto rootConformance = conformance->getRootConformance();
if (auto rootNormalConformance =
dyn_cast<NormalProtocolConformance>(rootConformance)) {
if (rootNormalConformance->getExplicitSafety() == ExplicitSafety::Unsafe)
return true;
}
}
}
return false;
}
UNINTERESTING_FEATURE(StrictMemorySafety)
UNINTERESTING_FEATURE(SafeInteropWrappers)
UNINTERESTING_FEATURE(AssumeResilientCxxTypes)