AST: Remove getExistentialTypeProtocols()

Author: slavapestov

include/swift/AST/Type.h

@@ -351,8 +351,6 @@ class CanType : public Type {
   static bool isReferenceTypeImpl(CanType type, bool functionsCount);
   static bool isExistentialTypeImpl(CanType type);
   static bool isAnyExistentialTypeImpl(CanType type);
-  static void getExistentialTypeProtocolsImpl(CanType type,
-                                    SmallVectorImpl<ProtocolDecl*> &protocols);
   static bool isObjCExistentialTypeImpl(CanType type);
   static CanType getAnyOptionalObjectTypeImpl(CanType type,
                                               OptionalTypeKind &kind);
@@ -406,11 +404,6 @@ class CanType : public Type {
     return isAnyExistentialTypeImpl(*this);
   }
 
-  /// Given that this type is an existential, return its
-  /// protocols in a canonical order.
-  void getExistentialTypeProtocols(
-      SmallVectorImpl<ProtocolDecl *> &protocols);
-
   /// Break an existential down into a set of constraints.
   ExistentialLayout getExistentialLayout();
 

include/swift/AST/Types.h

@@ -586,10 +586,6 @@ class alignas(1 << TypeAlignInBits) TypeBase {
   /// bound.
   bool isClassExistentialType();
 
-  /// Given that this type is an existential type, produce
-  /// its list of protocols.
-  void getExistentialTypeProtocols(SmallVectorImpl<ProtocolDecl *> &protocols);
-
   /// Break an existential down into a set of constraints.
   ExistentialLayout getExistentialLayout();
 

lib/AST/Type.cpp

@@ -208,22 +208,6 @@ bool TypeBase::allowsOwnership() {
   return getCanonicalType().isAnyClassReferenceType();
 }
 
-void TypeBase::getExistentialTypeProtocols(
-                                   SmallVectorImpl<ProtocolDecl*> &protocols) {
-  getCanonicalType().getExistentialTypeProtocols(protocols);
-}
-
-void CanType::getExistentialTypeProtocols(
-                                   SmallVectorImpl<ProtocolDecl*> &protocols) {
-  // FIXME: Remove this completely
-  auto layout = getExistentialLayout();
-  assert(!layout.superclass && "Subclass existentials not fully supported yet");
-  assert((!layout.requiresClass || layout.requiresClassImplied) &&
-         "Explicit AnyObject should not appear yet");
-  for (auto proto : layout.getProtocols())
-    protocols.push_back(proto->getDecl());
-}
-
 ExistentialLayout::ExistentialLayout(ProtocolType *type) {
   assert(type->isCanonical());