llvm-project/llvm/tools/llvm-remarkutil/RemarkUtilRegistry.cpp
Zain Jaffal 30d8e0837d [RemarkUtil] Refactor remarkutil tool to use a command registry.
In preperation to move all remark utilities into one tool. We use
command registry to breakdown each utility into a separate file.

For now we have 3 utilities for remarks
1. Convert: which is responsible for converting yaml remarks to
   bitstream and vice-versa
2. Count: Analyse remarks and report count. This currently only supports
   asm-remarks and annotation-summary remarks.
3. Diff remarks: Currently we only have a diff for size remarks using
   `llvm-remark-size-diff`

The first two utilites have been simplified and seperated into two
files. The following commit will move `llvm-remark-size-diff` and fold
it to be inside `llvm-remarkutil` as a subcommand

Differential Revision: https://reviews.llvm.org/D156416
2023-07-28 09:21:29 +01:00

42 lines
1.4 KiB
C++

//===- RemarkUtilRegistry.cpp: Implement a command registry. --------------===//
//
// 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.
//
//===----------------------------------------------------------------------===//
#include "RemarkUtilRegistry.h"
#include <unordered_map>
namespace llvm {
namespace remarkutil {
using HandlerType = std::function<Error()>;
static std::unordered_map<cl::SubCommand *, HandlerType> &getCommands() {
static std::unordered_map<cl::SubCommand *, HandlerType> Commands;
return Commands;
}
CommandRegistration::CommandRegistration(cl::SubCommand *SC,
HandlerType Command) {
assert(getCommands().count(SC) == 0 &&
"Attempting to overwrite a command handler");
assert(Command && "Attempting to register an empty std::function<Error()>");
getCommands()[SC] = Command;
}
HandlerType dispatch(cl::SubCommand *SC) {
auto It = getCommands().find(SC);
assert(It != getCommands().end() &&
"Attempting to dispatch on un-registered SubCommand.");
return It->second;
}
} // namespace remarkutil
} // namespace llvm