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| //===- DependencyScanningTool.cpp - clang-scan-deps service ---------------===//
//
// 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/DependencyScanning/DependencyScanningTool.h"
#include "clang/Frontend/Utils.h"
namespace clang{
namespace tooling{
namespace dependencies{
DependencyScanningTool::DependencyScanningTool(
DependencyScanningService &Service,
const tooling::CompilationDatabase &Compilations)
: Worker(Service), Compilations(Compilations) {}
llvm::Expected<std::string>
DependencyScanningTool::getDependencyFile(const std::string &Input,
StringRef CWD) {
/// Prints out all of the gathered dependencies into a string.
class DependencyPrinterConsumer : public DependencyConsumer {
public:
void handleFileDependency(const DependencyOutputOptions &Opts,
StringRef File) override {
if (!this->Opts)
this->Opts = std::make_unique<DependencyOutputOptions>(Opts);
Dependencies.push_back(File);
}
void printDependencies(std::string &S) {
if (!Opts)
return;
class DependencyPrinter : public DependencyFileGenerator {
public:
DependencyPrinter(DependencyOutputOptions &Opts,
ArrayRef<std::string> Dependencies)
: DependencyFileGenerator(Opts) {
for (const auto &Dep : Dependencies)
addDependency(Dep);
}
void printDependencies(std::string &S) {
llvm::raw_string_ostream OS(S);
outputDependencyFile(OS);
}
};
DependencyPrinter Generator(*Opts, Dependencies);
Generator.printDependencies(S);
}
private:
std::unique_ptr<DependencyOutputOptions> Opts;
std::vector<std::string> Dependencies;
};
DependencyPrinterConsumer Consumer;
auto Result =
Worker.computeDependencies(Input, CWD, Compilations, Consumer);
if (Result)
return std::move(Result);
std::string Output;
Consumer.printDependencies(Output);
return Output;
}
} // end namespace dependencies
} // end namespace tooling
} // end namespace clang
|