1 files changed, 47 insertions, 0 deletions
diff --git a/include/clang/AST/PrettyDeclStackTrace.h b/include/clang/AST/PrettyDeclStackTrace.h
new file mode 100644
index 0000000000000..8eb519eae26da
--- /dev/null
+++ b/include/clang/AST/PrettyDeclStackTrace.h
@@ -0,0 +1,47 @@
+//===- PrettyDeclStackTrace.h - Stack trace for decl processing -*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines an llvm::PrettyStackTraceEntry object for showing
+// that a particular declaration was being processed when a crash
+// occurred.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_AST_PRETTYDECLSTACKTRACE_H
+#define LLVM_CLANG_AST_PRETTYDECLSTACKTRACE_H
+
+#include "clang/Basic/SourceLocation.h"
+#include "llvm/Support/PrettyStackTrace.h"
+
+namespace clang {
+
+class ASTContext;
+class Decl;
+class SourceManager;
+
+/// PrettyDeclStackTraceEntry - If a crash occurs in the parser while
+/// parsing something related to a declaration, include that
+/// declaration in the stack trace.
+class PrettyDeclStackTraceEntry : public llvm::PrettyStackTraceEntry {
+  ASTContext &Context;
+  Decl *TheDecl;
+  SourceLocation Loc;
+  const char *Message;
+
+public:
+  PrettyDeclStackTraceEntry(ASTContext &Ctx, Decl *D, SourceLocation Loc,
+                            const char *Msg)
+    : Context(Ctx), TheDecl(D), Loc(Loc), Message(Msg) {}
+
+  void print(raw_ostream &OS) const override;
+};
+
+}
+
+#endif