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//===- lld/unittest/DriverTest.h ------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include <stdarg.h>
#include "gtest/gtest.h"
#include "lld/Driver/Driver.h"
#include "llvm/Support/raw_ostream.h"
namespace {
using namespace llvm;
using namespace lld;
template<typename D, typename T>
class ParserTest : public testing::Test {
protected:
virtual const LinkingContext *linkingContext() = 0;
std::string &errorMessage() { return _errorMessage; }
// Convenience method for getting number of input files.
int inputFileCount() { return linkingContext()->getInputGraph().size(); }
// Convenience method for getting i'th input files name.
std::string inputFile(int index) {
const InputElement &inputElement =
*linkingContext()->getInputGraph().inputElements()[index];
if (inputElement.kind() == InputElement::Kind::File)
return *cast<FileNode>(&inputElement)->getPath(*linkingContext());
llvm_unreachable("not handling other types of input files");
}
// Convenience method for getting i'th input files name.
std::string inputFile(int index1, int index2) {
Group *group = dyn_cast<Group>(
linkingContext()->getInputGraph().inputElements()[index1].get());
if (!group)
llvm_unreachable("not handling other types of input files");
FileNode *file = dyn_cast<FileNode>(group->elements()[index2].get());
if (!file)
llvm_unreachable("not handling other types of input files");
return *file->getPath(*linkingContext());
}
// For unit tests to call driver with various command lines.
bool parse(const char *args, ...) {
// Construct command line options from varargs.
std::vector<const char *> vec;
vec.push_back(args);
va_list ap;
va_start(ap, args);
while (const char *arg = va_arg(ap, const char *))
vec.push_back(arg);
va_end(ap);
// Call the parser.
raw_string_ostream os(_errorMessage);
return D::parse(vec.size(), &vec[0], _context, os);
}
T _context;
std::string _errorMessage;
};
}
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