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//===---------------- OrcError.cpp - Error codes for ORC ------------------===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// Error codes for ORC.
//
//===----------------------------------------------------------------------===//

#include "llvm/ExecutionEngine/Orc/OrcError.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/ManagedStatic.h"

using namespace llvm;
using namespace llvm::orc;

namespace {

// FIXME: This class is only here to support the transition to llvm::Error. It
// will be removed once this transition is complete. Clients should prefer to
// deal with the Error value directly, rather than converting to error_code.
class OrcErrorCategory : public std::error_category {
public:
  const char *name() const noexcept override { return "orc"; }

  std::string message(int condition) const override {
    switch (static_cast<OrcErrorCode>(condition)) {
    case OrcErrorCode::RemoteAllocatorDoesNotExist:
      return "Remote allocator does not exist";
    case OrcErrorCode::RemoteAllocatorIdAlreadyInUse:
      return "Remote allocator Id already in use";
    case OrcErrorCode::RemoteMProtectAddrUnrecognized:
      return "Remote mprotect call references unallocated memory";
    case OrcErrorCode::RemoteIndirectStubsOwnerDoesNotExist:
      return "Remote indirect stubs owner does not exist";
    case OrcErrorCode::RemoteIndirectStubsOwnerIdAlreadyInUse:
      return "Remote indirect stubs owner Id already in use";
    case OrcErrorCode::RPCResponseAbandoned:
      return "RPC response abandoned";
    case OrcErrorCode::UnexpectedRPCCall:
      return "Unexpected RPC call";
    case OrcErrorCode::UnexpectedRPCResponse:
      return "Unexpected RPC response";
    case OrcErrorCode::UnknownRPCFunction:
      return "Unknown RPC function";
    }
    llvm_unreachable("Unhandled error code");
  }
};

static ManagedStatic<OrcErrorCategory> OrcErrCat;
}

namespace llvm {
namespace orc {

Error orcError(OrcErrorCode ErrCode) {
  typedef std::underlying_type<OrcErrorCode>::type UT;
  return errorCodeToError(
      std::error_code(static_cast<UT>(ErrCode), *OrcErrCat));
}
}
}