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AST: Promote various move-only features to the baseline.

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This commit is contained in:
Allan Shortlidge
2024-07-08 22:24:30 -07:00
parent e1082bb8be
commit 5fb8082cc2
2 changed files with 5 additions and 61 deletions
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6
include/swift/Basic/Features.def
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@@ -176,8 +176,8 @@ BASELINE_LANGUAGE_FEATURE(Macros, 0, "Macros")
BASELINE_LANGUAGE_FEATURE(FreestandingExpressionMacros, 382, "Expression macros")
BASELINE_LANGUAGE_FEATURE(AttachedMacros, 389, "Attached macros")
BASELINE_LANGUAGE_FEATURE(ExtensionMacros, 402, "Extension macros")
LANGUAGE_FEATURE(MoveOnly, 390, "noncopyable types")
LANGUAGE_FEATURE(MoveOnlyResilientTypes, 390, "non-@frozen noncopyable types with library evolution")
BASELINE_LANGUAGE_FEATURE(MoveOnly, 390, "noncopyable types")
BASELINE_LANGUAGE_FEATURE(MoveOnlyResilientTypes, 390, "non-@frozen noncopyable types with library evolution")
BASELINE_LANGUAGE_FEATURE(ParameterPacks, 393, "Value and type parameter packs")
SUPPRESSIBLE_LANGUAGE_FEATURE(LexicalLifetimes, 0, "@_eagerMove/@_noEagerMove/@_lexicalLifetimes annotations")
BASELINE_LANGUAGE_FEATURE(FreestandingMacros, 397, "freestanding declaration macros")
@@ -191,7 +191,7 @@ LANGUAGE_FEATURE(BuiltinStoreRaw, 0, "Builtin.storeRaw")
BASELINE_LANGUAGE_FEATURE(BuiltinCreateTask, 0, "Builtin.createTask and Builtin.createDiscardingTask")
SUPPRESSIBLE_LANGUAGE_FEATURE(AssociatedTypeImplements, 0, "@_implements on associated types")
LANGUAGE_FEATURE(BuiltinAddressOfRawLayout, 0, "Builtin.addressOfRawLayout")
LANGUAGE_FEATURE(MoveOnlyPartialConsumption, 429, "Partial consumption of noncopyable values")
BASELINE_LANGUAGE_FEATURE(MoveOnlyPartialConsumption, 429, "Partial consumption of noncopyable values")
LANGUAGE_FEATURE(BitwiseCopyable, 426, "BitwiseCopyable protocol")
BASELINE_LANGUAGE_FEATURE(NoncopyableGenerics, 427, "Noncopyable generics")
BASELINE_LANGUAGE_FEATURE(NoncopyableGenerics2, 427, "Noncopyable generics alias")

60
lib/AST/FeatureSet.cpp
View File

@@ -141,48 +141,6 @@ static bool usesFeatureSpecializeAttributeWithAvailability(Decl *decl) {
return false;
}
static bool usesFeatureMoveOnly(Decl *decl) {
if (auto *extension = dyn_cast<ExtensionDecl>(decl)) {
if (auto *nominal = extension->getExtendedNominal())
return usesFeatureMoveOnly(nominal);
return false;
}
auto hasInverseInType = [&](Type type) {
return type.findIf([&](Type type) -> bool {
if (auto *NTD = type->getAnyNominal()) {
if (NTD->getAttrs().hasAttribute<MoveOnlyAttr>())
return true;
}
return false;
});
};
if (auto *TD = dyn_cast<TypeDecl>(decl)) {
if (auto *alias = dyn_cast<TypeAliasDecl>(TD))
return hasInverseInType(alias->getUnderlyingType());
if (auto *NTD = dyn_cast<NominalTypeDecl>(TD)) {
if (NTD->getAttrs().hasAttribute<MoveOnlyAttr>())
return true;
}
return false;
}
if (auto *VD = dyn_cast<ValueDecl>(decl)) {
return hasInverseInType(VD->getInterfaceType());
}
return false;
}
static bool usesFeatureMoveOnlyResilientTypes(Decl *decl) {
if (auto *nomDecl = dyn_cast<NominalTypeDecl>(decl))
return nomDecl->isResilient() && usesFeatureMoveOnly(decl);
return false;
}
static bool hasParameterPacks(Decl *decl) {
if (auto genericContext = decl->getAsGenericContext()) {
auto sig = genericContext->getGenericSignature();
@@ -341,29 +299,15 @@ static bool usesFeatureSymbolLinkageMarkers(Decl *decl) {
}
UNINTERESTING_FEATURE(LazyImmediate)
static bool usesFeatureMoveOnlyClasses(Decl *decl) {
return isa<ClassDecl>(decl) && usesFeatureMoveOnly(decl);
}
UNINTERESTING_FEATURE(MoveOnlyClasses)
static bool usesFeatureNoImplicitCopy(Decl *decl) {
return decl->isNoImplicitCopy();
}
UNINTERESTING_FEATURE(OldOwnershipOperatorSpellings)
static bool usesFeatureMoveOnlyEnumDeinits(Decl *decl) {
if (auto *ei = dyn_cast<EnumDecl>(decl)) {
return usesFeatureMoveOnly(ei) && ei->getValueTypeDestructor();
}
return false;
}
UNINTERESTING_FEATURE(MoveOnlyEnumDeinits)
UNINTERESTING_FEATURE(MoveOnlyTuples)
// Partial consumption does not affect declarations directly.
UNINTERESTING_FEATURE(MoveOnlyPartialConsumption)
UNINTERESTING_FEATURE(MoveOnlyPartialReinitialization)
UNINTERESTING_FEATURE(OneWayClosureParameters)