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//===- Testing/Support/SupportHelpers.h -----------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_TESTING_SUPPORT_SUPPORTHELPERS_H
#define LLVM_TESTING_SUPPORT_SUPPORTHELPERS_H
#include "llvm/ADT/StringRef.h"
#include "llvm/Support/Error.h"
#include "gtest/gtest-printers.h"
namespace llvm {
namespace detail {
struct ErrorHolder {
std::vector<std::shared_ptr<ErrorInfoBase>> Infos;
bool Success() const { return Infos.empty(); }
};
template <typename T> struct ExpectedHolder : public ErrorHolder {
ExpectedHolder(ErrorHolder Err, Expected<T> &Exp)
: ErrorHolder(std::move(Err)), Exp(Exp) {}
Expected<T> &Exp;
};
inline void PrintTo(const ErrorHolder &Err, std::ostream *Out) {
raw_os_ostream OS(*Out);
OS << (Err.Success() ? "succeeded" : "failed");
if (!Err.Success()) {
const char *Delim = " (";
for (const auto &Info : Err.Infos) {
OS << Delim;
Delim = "; ";
Info->log(OS);
}
OS << ")";
}
}
template <typename T>
void PrintTo(const ExpectedHolder<T> &Item, std::ostream *Out) {
if (Item.Success()) {
*Out << "succeeded with value " << ::testing::PrintToString(*Item.Exp);
} else {
PrintTo(static_cast<const ErrorHolder &>(Item), Out);
}
}
} // namespace detail
} // namespace llvm
#endif
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