void TBDGenVisitor::addSymbol(SILDeclRef declRef, bool checkSILOnly) {
bool isPrivate = !hasPublicVisibility(declRef.getLinkage(ForDefinition));
// Even private methods of open classes (specifically, private methods that
// are in the vtable) have public symbols, because external subclasses
// currently need to refer to them by symbol for their own vtable.
switch (declRef.getSubclassScope()) {
case SubclassScope::External:
// Allocating constructors retain their normal linkage behavior.
if (declRef.kind == SILDeclRef::Kind::Allocator)
break;
// Unlike the "truly" public things, private things have public symbols
// unconditionally, even if they're theoretically SIL only.
if (isPrivate) {
isPrivate = false;
checkSILOnly = false;
}
break;
case SubclassScope::Internal:
case SubclassScope::NotApplicable:
break;
}
if (isPrivate)
return;
// (Most) transparent things don't exist, even if they're public.
// FIXME: isTransparent should really be "is SIL only".
if (checkSILOnly && declRef.isTransparent())
return;
addSymbol(declRef.mangle());
}
