utils/unittest/googletest/include/gtest/internal/custom/gtest-printers.h

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  28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  29 //
  30 // This file provides an injection point for custom printers in a local
  31 // installation of gTest.
  32 // It will be included from gtest-printers.h and the overrides in this file
  33 // will be visible to everyone.
  34 // See documentation at gtest/gtest-printers.h for details on how to define a
  35 // custom printer.
  36 //
  37 // ** Custom implementation starts here **
  38
  39 #ifndef GTEST_INCLUDE_GTEST_INTERNAL_CUSTOM_GTEST_PRINTERS_H_
  40 #define GTEST_INCLUDE_GTEST_INTERNAL_CUSTOM_GTEST_PRINTERS_H_
  41
  42 #if !GTEST_NO_LLVM_SUPPORT
  43 #include "llvm/ADT/SmallString.h"
  44 #include "llvm/ADT/StringRef.h"
  45 #include <ostream>
  46 // Printing of llvm String types.
  47 // gtest sees these as containers of char (they have nested iterator types),
  48 // so their operator<< is never considered unless we provide PrintTo().
  49 // PrintStringTo provides quotes and escaping, at the cost of a copy.
  50 namespace llvm {
  51 inline void PrintTo(llvm::StringRef S, std::ostream *OS) {
  52   *OS << ::testing::PrintToString(S.str());
  53 }
  54 // We need both SmallString<N> and SmallVectorImpl<char> overloads:
  55 //  - the SmallString<N> template is needed as overload resolution will
  56 //    instantiate generic PrintTo<T> rather than do derived-to-base conversion
  57 //  - but SmallVectorImpl<char> is sometimes the actual static type, in code
  58 //    that erases the small size
  59 template <unsigned N>
  60 inline void PrintTo(const SmallString<N> &S, std::ostream *OS) {
  61   *OS << ::testing::PrintToString(std::string(S.data(), S.size()));
  62 }
  63 inline void PrintTo(const SmallVectorImpl<char> &S, std::ostream *OS) {
  64   *OS << ::testing::PrintToString(std::string(S.data(), S.size()));
  65 }
  66 } // namespace llvm
  67 #endif // !GTEST_NO_LLVM_SUPPORT
  68
  69 #endif  // GTEST_INCLUDE_GTEST_INTERNAL_CUSTOM_GTEST_PRINTERS_H_