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Merge pull request #65606 from kavon/noncopyable-metatypes

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Prevent noncopyable metatypes from being converted to `Any`
This commit is contained in:
Kavon Farvardin
2023-05-03 22:05:17 -07:00
committed by GitHub
parent 0b93ff4a9c 4710fc675b
commit 1df3912794
6 changed files with 41 additions and 15 deletions
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16
lib/AST/Module.cpp
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@@ -1768,10 +1768,18 @@ static ProtocolConformanceRef getBuiltinFunctionTypeConformance(
/// appropriate.
static ProtocolConformanceRef getBuiltinMetaTypeTypeConformance(
Type type, const AnyMetatypeType *metatypeType, ProtocolDecl *protocol) {
// All metatypes are Sendable and Copyable
if (protocol->isSpecificProtocol(KnownProtocolKind::Sendable) ||
protocol->isSpecificProtocol(KnownProtocolKind::Copyable)) {
ASTContext &ctx = protocol->getASTContext();
ASTContext &ctx = protocol->getASTContext();
// Only metatypes of Copyable types are Copyable.
if (protocol->isSpecificProtocol(KnownProtocolKind::Copyable) &&
!metatypeType->getInstanceType()->isPureMoveOnly()) {
return ProtocolConformanceRef(
ctx.getBuiltinConformance(type, protocol, GenericSignature(), { },
BuiltinConformanceKind::Synthesized));
}
// All metatypes are Sendable
if (protocol->isSpecificProtocol(KnownProtocolKind::Sendable)) {
return ProtocolConformanceRef(
ctx.getBuiltinConformance(type, protocol, GenericSignature(), { },
BuiltinConformanceKind::Synthesized));