1 //===- Testing/Support/SupportHelpers.h -----------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #ifndef LLVM_TESTING_SUPPORT_SUPPORTHELPERS_H 11 #define LLVM_TESTING_SUPPORT_SUPPORTHELPERS_H 12 13 #include "llvm/ADT/StringRef.h" 14 #include "llvm/Support/Error.h" 15 #include "gtest/gtest-printers.h" 16 17 namespace llvm { 18 namespace detail { 19 struct ErrorHolder { 20 bool Success; 21 std::string Message; 22 }; 23 24 template <typename T> struct ExpectedHolder : public ErrorHolder { 25 Optional<T *> Value; 26 }; 27 28 inline void PrintTo(const ErrorHolder &Err, std::ostream *Out) { 29 *Out << (Err.Success ? "succeeded" : "failed"); 30 if (!Err.Success) { 31 *Out << " (" << StringRef(Err.Message).trim().str() << ")"; 32 } 33 } 34 35 template <typename T> 36 void PrintTo(const ExpectedHolder<T> &Item, std::ostream *Out) { 37 if (Item.Success) { 38 *Out << "succeeded with value \"" << ::testing::PrintToString(**Item.Value) 39 << "\""; 40 } else { 41 PrintTo(static_cast<const ErrorHolder &>(Item), Out); 42 } 43 } 44 } // namespace detail 45 } // namespace llvm 46 47 #endif 48
