Merge "Update prebuilt Clang to r353983." into p9.0HEADp9.0-backupp9.0

1 files changed, 45 insertions, 0 deletions

diff --git a/clang-r353983/include/clang/Sema/Weak.h b/clang-r353983/include/clang/Sema/Weak.h
new file mode 100644
index 00000000..43439367
--- /dev/null
+++ b/clang-r353983/include/clang/Sema/Weak.h
@@ -0,0 +1,45 @@
+//===-- UnresolvedSet.h - Unresolved sets of declarations  ------*- C++ -*-===//
+//
+// 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 WeakInfo class, which is used to store
+//  information about the target of a #pragma weak directive.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_SEMA_WEAK_H
+#define LLVM_CLANG_SEMA_WEAK_H
+
+#include "clang/Basic/SourceLocation.h"
+
+namespace clang {
+
+class IdentifierInfo;
+
+/// Captures information about a \#pragma weak directive.
+class WeakInfo {
+  IdentifierInfo *alias;  // alias (optional)
+  SourceLocation loc;     // for diagnostics
+  bool used;              // identifier later declared?
+public:
+  WeakInfo()
+    : alias(nullptr), loc(SourceLocation()), used(false) {}
+  WeakInfo(IdentifierInfo *Alias, SourceLocation Loc)
+    : alias(Alias), loc(Loc), used(false) {}
+  inline IdentifierInfo * getAlias() const { return alias; }
+  inline SourceLocation getLocation() const { return loc; }
+  void setUsed(bool Used=true) { used = Used; }
+  inline bool getUsed() { return used; }
+  bool operator==(WeakInfo RHS) const {
+    return alias == RHS.getAlias() && loc == RHS.getLocation();
+  }
+  bool operator!=(WeakInfo RHS) const { return !(*this == RHS); }
+};
+
+} // end namespace clang
+
+#endif // LLVM_CLANG_SEMA_WEAK_H