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llvm-mirror/tools/llvm-xray/xray-registry.h
Chandler Carruth ae65e281f3 Update the file headers across all of the LLVM projects in the monorepo
to reflect the new license.

We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.

Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.

llvm-svn: 351636
2019-01-19 08:50:56 +00:00

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1.3 KiB
C++

//===- xray-registry.h - Define registry mechanism for commands. ----------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// Implement a simple subcommand registry.
//
//===----------------------------------------------------------------------===//
#ifndef TOOLS_LLVM_XRAY_XRAY_REGISTRY_H
#define TOOLS_LLVM_XRAY_XRAY_REGISTRY_H
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Error.h"
namespace llvm {
namespace xray {
// Use |CommandRegistration| as a global initialiser that registers a function
// and associates it with |SC|. This requires that a command has not been
// registered to a given |SC|.
//
// Usage:
//
// // At namespace scope.
// static CommandRegistration Unused(&MySubCommand, [] { ... });
//
struct CommandRegistration {
CommandRegistration(cl::SubCommand *SC, std::function<Error()> Command);
};
// Requires that |SC| is not null and has an associated function to it.
std::function<Error()> dispatch(cl::SubCommand *SC);
} // namespace xray
} // namespace llvm
#endif // TOOLS_LLVM_XRAY_XRAY_REGISTRY_H