[llvm-pdbdump] Add an option to dump full class definitions.

This adds the --class-definitions flag.  If specified, when dumping
types, instead of "class Foo" you will see the full class definition,
with member functions, constructors, access specifiers.

NOTE: Using this option can be very slow, as generating a full class
definition requires accessing many different parts of the PDB.

llvm-svn: 230203

1 files changed, 64 insertions, 0 deletions

diff --git a/llvm/tools/llvm-pdbdump/ClassDefinitionDumper.h b/llvm/tools/llvm-pdbdump/ClassDefinitionDumper.h
new file mode 100644
index 00000000000..f82d9760bcc
--- /dev/null
+++ b/llvm/tools/llvm-pdbdump/ClassDefinitionDumper.h
@@ -0,0 +1,64 @@
+//===- ClassDefinitionDumper.h - --------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_TOOLS_LLVMPDBDUMP_CLASSDEFINITIONDUMPER_H
+#define LLVM_TOOLS_LLVMPDBDUMP_CLASSDEFINITIONDUMPER_H
+
+#include "llvm/DebugInfo/PDB/PDBSymDumper.h"
+#include "llvm/DebugInfo/PDB/PDBSymbolFunc.h"
+#include "llvm/DebugInfo/PDB/PDBSymbolData.h"
+
+#include <list>
+#include <memory>
+#include <unordered_map>
+
+namespace llvm {
+
+class ClassDefinitionDumper : public PDBSymDumper {
+public:
+  ClassDefinitionDumper();
+
+  void start(const PDBSymbolTypeUDT &Exe, raw_ostream &OS, int Indent);
+
+  void dump(const PDBSymbolTypeBaseClass &Symbol, raw_ostream &OS,
+            int Indent) override;
+  void dump(const PDBSymbolData &Symbol, raw_ostream &OS, int Indent) override;
+  void dump(const PDBSymbolTypeEnum &Symbol, raw_ostream &OS,
+            int Indent) override;
+  void dump(const PDBSymbolFunc &Symbol, raw_ostream &OS, int Indent) override;
+  void dump(const PDBSymbolTypeTypedef &Symbol, raw_ostream &OS,
+            int Indent) override;
+  void dump(const PDBSymbolTypeUDT &Symbol, raw_ostream &OS,
+            int Indent) override;
+  void dump(const PDBSymbolTypeVTable &Symbol, raw_ostream &OS,
+            int Indent) override;
+
+private:
+  struct SymbolGroup {
+    SymbolGroup() {}
+    SymbolGroup(SymbolGroup &&Other) {
+      Functions = std::move(Other.Functions);
+      Data = std::move(Other.Data);
+      Unknown = std::move(Other.Unknown);
+    }
+
+    std::list<std::unique_ptr<PDBSymbolFunc>> Functions;
+    std::list<std::unique_ptr<PDBSymbolData>> Data;
+    std::list<std::unique_ptr<PDBSymbol>> Unknown;
+    SymbolGroup(const SymbolGroup &other) = delete;
+    SymbolGroup &operator=(const SymbolGroup &other) = delete;
+  };
+  typedef std::unordered_map<PDB_MemberAccess, SymbolGroup> SymbolGroupByAccess;
+
+  int dumpAccessGroup(PDB_MemberAccess Access, const SymbolGroup &Group,
+                      raw_ostream &OS, int Indent);
+};
+}
+
+#endif