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//===- llvm/Metadata.def - Metadata definitions -----------------*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// Macros for running through all types of metadata.
//
//===----------------------------------------------------------------------===//

#if !(defined HANDLE_METADATA || defined HANDLE_METADATA_LEAF ||               \
      defined HANDLE_METADATA_BRANCH || defined HANDLE_UNIQUABLE_LEAF ||       \
      defined HANDLE_UNIQUABLE_BRANCH)
#error "Missing macro definition of HANDLE_METADATA*"
#endif

// Handler for all types of metadata.
#ifndef HANDLE_METADATA
#define HANDLE_METADATA(CLASS)
#endif

// Handler for leaf nodes in the class hierarchy.
#ifndef HANDLE_METADATA_LEAF
#define HANDLE_METADATA_LEAF(CLASS) HANDLE_METADATA(CLASS)
#endif

// Handler for non-leaf nodes in the class hierarchy.
#ifndef HANDLE_METADATA_BRANCH
#define HANDLE_METADATA_BRANCH(CLASS) HANDLE_METADATA(CLASS)
#endif

// Handler for leaf nodes under UniquableMDNode.
#ifndef HANDLE_UNIQUABLE_LEAF
#define HANDLE_UNIQUABLE_LEAF(CLASS) HANDLE_METADATA_LEAF(CLASS)
#endif

// Handler for non-leaf nodes under UniquableMDNode.
#ifndef HANDLE_UNIQUABLE_BRANCH
#define HANDLE_UNIQUABLE_BRANCH(CLASS) HANDLE_METADATA_BRANCH(CLASS)
#endif

HANDLE_METADATA_LEAF(MDString)
HANDLE_METADATA_BRANCH(ValueAsMetadata)
HANDLE_METADATA_LEAF(ConstantAsMetadata)
HANDLE_METADATA_LEAF(LocalAsMetadata)
HANDLE_METADATA_BRANCH(MDNode)
HANDLE_METADATA_LEAF(MDNodeFwdDecl)
HANDLE_UNIQUABLE_BRANCH(UniquableMDNode)
HANDLE_UNIQUABLE_LEAF(MDTuple)
HANDLE_UNIQUABLE_LEAF(MDLocation)

#undef HANDLE_METADATA
#undef HANDLE_METADATA_LEAF
#undef HANDLE_METADATA_BRANCH
#undef HANDLE_UNIQUABLE_LEAF
#undef HANDLE_UNIQUABLE_BRANCH