llvm-capstone/clang/lib/Tooling/Execution.cpp
2020-06-19 00:40:10 +01:00

106 lines
3.9 KiB
C++

//===- lib/Tooling/Execution.cpp - Implements tool execution framework. ---===//
//
// 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
//
//===----------------------------------------------------------------------===//
#include "clang/Tooling/Execution.h"
#include "clang/Tooling/ToolExecutorPluginRegistry.h"
#include "clang/Tooling/Tooling.h"
LLVM_INSTANTIATE_REGISTRY(clang::tooling::ToolExecutorPluginRegistry)
namespace clang {
namespace tooling {
llvm::cl::opt<std::string>
ExecutorName("executor", llvm::cl::desc("The name of the executor to use."),
llvm::cl::init("standalone"));
void InMemoryToolResults::addResult(StringRef Key, StringRef Value) {
KVResults.push_back({Strings.save(Key), Strings.save(Value)});
}
std::vector<std::pair<llvm::StringRef, llvm::StringRef>>
InMemoryToolResults::AllKVResults() {
return KVResults;
}
void InMemoryToolResults::forEachResult(
llvm::function_ref<void(StringRef Key, StringRef Value)> Callback) {
for (const auto &KV : KVResults) {
Callback(KV.first, KV.second);
}
}
void ExecutionContext::reportResult(StringRef Key, StringRef Value) {
Results->addResult(Key, Value);
}
llvm::Error
ToolExecutor::execute(std::unique_ptr<FrontendActionFactory> Action) {
return execute(std::move(Action), ArgumentsAdjuster());
}
llvm::Error ToolExecutor::execute(std::unique_ptr<FrontendActionFactory> Action,
ArgumentsAdjuster Adjuster) {
std::vector<
std::pair<std::unique_ptr<FrontendActionFactory>, ArgumentsAdjuster>>
Actions;
Actions.emplace_back(std::move(Action), std::move(Adjuster));
return execute(Actions);
}
namespace internal {
llvm::Expected<std::unique_ptr<ToolExecutor>>
createExecutorFromCommandLineArgsImpl(int &argc, const char **argv,
llvm::cl::OptionCategory &Category,
const char *Overview) {
auto OptionsParser =
CommonOptionsParser::create(argc, argv, Category, llvm::cl::ZeroOrMore,
/*Overview=*/Overview);
if (!OptionsParser)
return OptionsParser.takeError();
for (const auto &TEPlugin : ToolExecutorPluginRegistry::entries()) {
if (TEPlugin.getName() != ExecutorName) {
continue;
}
std::unique_ptr<ToolExecutorPlugin> Plugin(TEPlugin.instantiate());
llvm::Expected<std::unique_ptr<ToolExecutor>> Executor =
Plugin->create(*OptionsParser);
if (!Executor) {
return llvm::make_error<llvm::StringError>(
llvm::Twine("Failed to create '") + TEPlugin.getName() +
"': " + llvm::toString(Executor.takeError()) + "\n",
llvm::inconvertibleErrorCode());
}
return std::move(*Executor);
}
return llvm::make_error<llvm::StringError>(
llvm::Twine("Executor \"") + ExecutorName + "\" is not registered.",
llvm::inconvertibleErrorCode());
}
} // end namespace internal
llvm::Expected<std::unique_ptr<ToolExecutor>>
createExecutorFromCommandLineArgs(int &argc, const char **argv,
llvm::cl::OptionCategory &Category,
const char *Overview) {
return internal::createExecutorFromCommandLineArgsImpl(argc, argv, Category,
Overview);
}
// This anchor is used to force the linker to link in the generated object file
// and thus register the StandaloneToolExecutorPlugin etc.
extern volatile int StandaloneToolExecutorAnchorSource;
extern volatile int AllTUsToolExecutorAnchorSource;
static int LLVM_ATTRIBUTE_UNUSED StandaloneToolExecutorAnchorDest =
StandaloneToolExecutorAnchorSource;
static int LLVM_ATTRIBUTE_UNUSED AllTUsToolExecutorAnchorDest =
AllTUsToolExecutorAnchorSource;
} // end namespace tooling
} // end namespace clang