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//===-- llvm/CodeGen/GCMetadataPrinter.h - Prints asm GC tables -*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// The abstract base class GCMetadataPrinter supports writing GC metadata tables
// as assembly code. This is a separate class from GCStrategy in order to allow
// users of the LLVM JIT to avoid linking with the AsmWriter.
//
// Subclasses of GCMetadataPrinter must be registered using the
// GCMetadataPrinterRegistry. This is separate from the GCStrategy itself
// because these subclasses are logically plugins for the AsmWriter.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CODEGEN_GCMETADATAPRINTER_H
#define LLVM_CODEGEN_GCMETADATAPRINTER_H
#include "llvm/CodeGen/GCMetadata.h"
#include "llvm/CodeGen/GCStrategy.h"
#include "llvm/Support/Registry.h"
namespace llvm {
class GCMetadataPrinter;
/// GCMetadataPrinterRegistry - The GC assembly printer registry uses all the
/// defaults from Registry.
typedef Registry<GCMetadataPrinter> GCMetadataPrinterRegistry;
/// GCMetadataPrinter - Emits GC metadata as assembly code.
///
class GCMetadataPrinter {
public:
typedef GCStrategy::list_type list_type;
typedef GCStrategy::iterator iterator;
private:
GCStrategy *S;
friend class AsmPrinter;
protected:
// May only be subclassed.
GCMetadataPrinter();
private:
GCMetadataPrinter(const GCMetadataPrinter &) LLVM_DELETED_FUNCTION;
GCMetadataPrinter &
operator=(const GCMetadataPrinter &) LLVM_DELETED_FUNCTION;
public:
GCStrategy &getStrategy() { return *S; }
const Module &getModule() const { return S->getModule(); }
/// begin/end - Iterate over the collected function metadata.
iterator begin() { return S->begin(); }
iterator end() { return S->end(); }
/// beginAssembly/finishAssembly - Emit module metadata as assembly code.
virtual void beginAssembly(AsmPrinter &AP);
virtual void finishAssembly(AsmPrinter &AP);
virtual ~GCMetadataPrinter();
};
}
#endif
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