1 files changed, 73 insertions, 0 deletions
diff --git a/clang/lib/Sema/DelayedDiagnostic.cpp b/clang/lib/Sema/DelayedDiagnostic.cpp
new file mode 100644
index 000000000000..cb2721b92090
--- /dev/null
+++ b/clang/lib/Sema/DelayedDiagnostic.cpp
@@ -0,0 +1,73 @@
+//===- DelayedDiagnostic.cpp - Delayed declarator diagnostics -------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines the DelayedDiagnostic class implementation, which
+// is used to record diagnostics that are being conditionally produced
+// during declarator parsing.
+//
+// This file also defines AccessedEntity.
+//
+//===----------------------------------------------------------------------===//
+
+#include "clang/Sema/DelayedDiagnostic.h"
+#include <cstring>
+
+using namespace clang;
+using namespace sema;
+
+DelayedDiagnostic
+DelayedDiagnostic::makeAvailability(AvailabilityResult AR,
+                                    ArrayRef<SourceLocation> Locs,
+                                    const NamedDecl *ReferringDecl,
+                                    const NamedDecl *OffendingDecl,
+                                    const ObjCInterfaceDecl *UnknownObjCClass,
+                                    const ObjCPropertyDecl  *ObjCProperty,
+                                    StringRef Msg,
+                                    bool ObjCPropertyAccess) {
+  assert(!Locs.empty());
+  DelayedDiagnostic DD;
+  DD.Kind = Availability;
+  DD.Triggered = false;
+  DD.Loc = Locs.front();
+  DD.AvailabilityData.ReferringDecl = ReferringDecl;
+  DD.AvailabilityData.OffendingDecl = OffendingDecl;
+  DD.AvailabilityData.UnknownObjCClass = UnknownObjCClass;
+  DD.AvailabilityData.ObjCProperty = ObjCProperty;
+  char *MessageData = nullptr;
+  if (!Msg.empty()) {
+    MessageData = new char [Msg.size()];
+    memcpy(MessageData, Msg.data(), Msg.size());
+  }
+  DD.AvailabilityData.Message = MessageData;
+  DD.AvailabilityData.MessageLen = Msg.size();
+
+  DD.AvailabilityData.SelectorLocs = new SourceLocation[Locs.size()];
+  memcpy(DD.AvailabilityData.SelectorLocs, Locs.data(),
+         sizeof(SourceLocation) * Locs.size());
+  DD.AvailabilityData.NumSelectorLocs = Locs.size();
+
+  DD.AvailabilityData.AR = AR;
+  DD.AvailabilityData.ObjCPropertyAccess = ObjCPropertyAccess;
+  return DD;
+}
+
+void DelayedDiagnostic::Destroy() {
+  switch (Kind) {
+  case Access:
+    getAccessData().~AccessedEntity();
+    break;
+
+  case Availability:
+    delete[] AvailabilityData.Message;
+    delete[] AvailabilityData.SelectorLocs;
+    break;
+
+  case ForbiddenType:
+    break;
+  }
+}