CbC/CbC_llvm: utils/unittest/googletest/gtest-printers.cc comparison

comparison utils/unittest/googletest/gtest-printers.cc @ 31:d22a1cf4041c

merge with the LLVM_original

author	Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date	Thu, 12 Dec 2013 14:37:49 +0900
parents	9ad51c7bc036
children

comparison

equal deleted inserted replaced

-:4bc3e1cd2659
+:d22a1cf4041c
+// Copyright 2007, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// Author: wan@google.com (Zhanyong Wan)
+// Google Test - The Google C++ Testing Framework
+//
+// This file implements a universal value printer that can print a
+// value of any type T:
+//
+//   void ::testing::internal::UniversalPrinter<T>::Print(value, ostream_ptr);
+//
+// It uses the << operator when possible, and prints the bytes in the
+// object otherwise.  A user can override its behavior for a class
+// type Foo by defining either operator<<(::std::ostream&, const Foo&)
+// or void PrintTo(const Foo&, ::std::ostream*) in the namespace that
+// defines Foo.
+#include "gtest/gtest-printers.h"
+#include <ctype.h>
+#include <stdio.h>
+#include <ostream>  // NOLINT
+#include <string>
+#include "gtest/internal/gtest-port.h"
+namespace testing {
+namespace {
+using ::std::ostream;
+#if GTEST_OS_WINDOWS_MOBILE  // Windows CE does not define _snprintf_s.
+# define snprintf _snprintf
+#elif _MSC_VER >= 1400  // VC 8.0 and later deprecate snprintf and _snprintf.
+# define snprintf _snprintf_s
+#elif _MSC_VER
+# define snprintf _snprintf
+#endif  // GTEST_OS_WINDOWS_MOBILE
+// Prints a segment of bytes in the given object.
+void PrintByteSegmentInObjectTo(const unsigned char* obj_bytes, size_t start,
+size_t count, ostream* os) {
+char text[5] = "";
+for (size_t i = 0; i != count; i++) {
+const size_t j = start + i;
+if (i != 0) {
+// Organizes the bytes into groups of 2 for easy parsing by
+// human.
+if ((j % 2) == 0)
+*os << ' ';
+else
+*os << '-';
+}
+snprintf(text, sizeof(text), "%02X", obj_bytes[j]);
+*os << text;
+}
+}
+// Prints the bytes in the given value to the given ostream.
+void PrintBytesInObjectToImpl(const unsigned char* obj_bytes, size_t count,
+ostream* os) {
+// Tells the user how big the object is.
+*os << count << "-byte object <";
+const size_t kThreshold = 132;
+const size_t kChunkSize = 64;
+// If the object size is bigger than kThreshold, we'll have to omit
+// some details by printing only the first and the last kChunkSize
+// bytes.
+// TODO(wan): let the user control the threshold using a flag.
+if (count < kThreshold) {
+PrintByteSegmentInObjectTo(obj_bytes, 0, count, os);
+} else {
+PrintByteSegmentInObjectTo(obj_bytes, 0, kChunkSize, os);
+*os << " ... ";
+// Rounds up to 2-byte boundary.
+const size_t resume_pos = (count - kChunkSize + 1)/2*2;
+PrintByteSegmentInObjectTo(obj_bytes, resume_pos, count - resume_pos, os);
+}
+*os << ">";
+}
+}  // namespace
+namespace internal2 {
+// Delegates to PrintBytesInObjectToImpl() to print the bytes in the
+// given object.  The delegation simplifies the implementation, which
+// uses the << operator and thus is easier done outside of the
+// ::testing::internal namespace, which contains a << operator that
+// sometimes conflicts with the one in STL.
+void PrintBytesInObjectTo(const unsigned char* obj_bytes, size_t count,
+ostream* os) {
+PrintBytesInObjectToImpl(obj_bytes, count, os);
+}
+}  // namespace internal2
+namespace internal {
+// Depending on the value of a char (or wchar_t), we print it in one
+// of three formats:
+//   - as is if it's a printable ASCII (e.g. 'a', '2', ' '),
+//   - as a hexadecimal escape sequence (e.g. '\x7F'), or
+//   - as a special escape sequence (e.g. '\r', '\n').
+enum CharFormat {
+kAsIs,
+kHexEscape,
+kSpecialEscape
+};
+// Returns true if c is a printable ASCII character.  We test the
+// value of c directly instead of calling isprint(), which is buggy on
+// Windows Mobile.
+inline bool IsPrintableAscii(wchar_t c) {
+return 0x20 <= c && c <= 0x7E;
+}
+// Prints a wide or narrow char c as a character literal without the
+// quotes, escaping it when necessary; returns how c was formatted.
+// The template argument UnsignedChar is the unsigned version of Char,
+// which is the type of c.
+template <typename UnsignedChar, typename Char>
+static CharFormat PrintAsCharLiteralTo(Char c, ostream* os) {
+switch (static_cast<wchar_t>(c)) {
+case L'\0':
+*os << "\\0";
+break;
+case L'\'':
+*os << "\\'";
+break;
+case L'\\':
+*os << "\\\\";
+break;
+case L'\a':
+*os << "\\a";
+break;
+case L'\b':
+*os << "\\b";
+break;
+case L'\f':
+*os << "\\f";
+break;
+case L'\n':
+*os << "\\n";
+break;
+case L'\r':
+*os << "\\r";
+break;
+case L'\t':
+*os << "\\t";
+break;
+case L'\v':
+*os << "\\v";
+break;
+default:
+if (IsPrintableAscii(c)) {
+*os << static_cast<char>(c);
+return kAsIs;
+} else {
+*os << String::Format("\\x%X", static_cast<UnsignedChar>(c));
+return kHexEscape;
+}
+}
+return kSpecialEscape;
+}
+// Prints a char c as if it's part of a string literal, escaping it when
+// necessary; returns how c was formatted.
+static CharFormat PrintAsWideStringLiteralTo(wchar_t c, ostream* os) {
+switch (c) {
+case L'\'':
+*os << "'";
+return kAsIs;
+case L'"':
+*os << "\\\"";
+return kSpecialEscape;
+default:
+return PrintAsCharLiteralTo<wchar_t>(c, os);
+}
+}
+// Prints a char c as if it's part of a string literal, escaping it when
+// necessary; returns how c was formatted.
+static CharFormat PrintAsNarrowStringLiteralTo(char c, ostream* os) {
+return PrintAsWideStringLiteralTo(static_cast<unsigned char>(c), os);
+}
+// Prints a wide or narrow character c and its code.  '\0' is printed
+// as "'\\0'", other unprintable characters are also properly escaped
+// using the standard C++ escape sequence.  The template argument
+// UnsignedChar is the unsigned version of Char, which is the type of c.
+template <typename UnsignedChar, typename Char>
+void PrintCharAndCodeTo(Char c, ostream* os) {
+// First, print c as a literal in the most readable form we can find.
+*os << ((sizeof(c) > 1) ? "L'" : "'");
+const CharFormat format = PrintAsCharLiteralTo<UnsignedChar>(c, os);
+*os << "'";
+// To aid user debugging, we also print c's code in decimal, unless
+// it's 0 (in which case c was printed as '\\0', making the code
+// obvious).
+if (c == 0)
+return;
+*os << " (" << String::Format("%d", c).c_str();
+// For more convenience, we print c's code again in hexadecimal,
+// unless c was already printed in the form '\x##' or the code is in
+// [1, 9].
+if (format == kHexEscape || (1 <= c && c <= 9)) {
+// Do nothing.
+} else {
+*os << String::Format(", 0x%X",
+static_cast<UnsignedChar>(c)).c_str();
+}
+*os << ")";
+}
+void PrintTo(unsigned char c, ::std::ostream* os) {
+PrintCharAndCodeTo<unsigned char>(c, os);
+}
+void PrintTo(signed char c, ::std::ostream* os) {
+PrintCharAndCodeTo<unsigned char>(c, os);
+}
+// Prints a wchar_t as a symbol if it is printable or as its internal
+// code otherwise and also as its code.  L'\0' is printed as "L'\\0'".
+void PrintTo(wchar_t wc, ostream* os) {
+PrintCharAndCodeTo<wchar_t>(wc, os);
+}
+// Prints the given array of characters to the ostream.
+// The array starts at *begin, the length is len, it may include '\0' characters
+// and may not be null-terminated.
+static void PrintCharsAsStringTo(const char* begin, size_t len, ostream* os) {
+*os << "\"";
+bool is_previous_hex = false;
+for (size_t index = 0; index < len; ++index) {
+const char cur = begin[index];
+if (is_previous_hex && IsXDigit(cur)) {
+// Previous character is of '\x..' form and this character can be
+// interpreted as another hexadecimal digit in its number. Break string to
+// disambiguate.
+*os << "\" \"";
+}
+is_previous_hex = PrintAsNarrowStringLiteralTo(cur, os) == kHexEscape;
+}
+*os << "\"";
+}
+// Prints a (const) char array of 'len' elements, starting at address 'begin'.
+void UniversalPrintArray(const char* begin, size_t len, ostream* os) {
+PrintCharsAsStringTo(begin, len, os);
+}
+// Prints the given array of wide characters to the ostream.
+// The array starts at *begin, the length is len, it may include L'\0'
+// characters and may not be null-terminated.
+static void PrintWideCharsAsStringTo(const wchar_t* begin, size_t len,
+ostream* os) {
+*os << "L\"";
+bool is_previous_hex = false;
+for (size_t index = 0; index < len; ++index) {
+const wchar_t cur = begin[index];
+if (is_previous_hex && isascii(cur) && IsXDigit(static_cast<char>(cur))) {
+// Previous character is of '\x..' form and this character can be
+// interpreted as another hexadecimal digit in its number. Break string to
+// disambiguate.
+*os << "\" L\"";
+}
+is_previous_hex = PrintAsWideStringLiteralTo(cur, os) == kHexEscape;
+}
+*os << "\"";
+}
+// Prints the given C string to the ostream.
+void PrintTo(const char* s, ostream* os) {
+if (s == NULL) {
+*os << "NULL";
+} else {
+*os << ImplicitCast_<const void*>(s) << " pointing to ";
+PrintCharsAsStringTo(s, strlen(s), os);
+}
+}
+// MSVC compiler can be configured to define whar_t as a typedef
+// of unsigned short. Defining an overload for const wchar_t* in that case
+// would cause pointers to unsigned shorts be printed as wide strings,
+// possibly accessing more memory than intended and causing invalid
+// memory accesses. MSVC defines _NATIVE_WCHAR_T_DEFINED symbol when
+// wchar_t is implemented as a native type.
+#if !defined(_MSC_VER) || defined(_NATIVE_WCHAR_T_DEFINED)
+// Prints the given wide C string to the ostream.
+void PrintTo(const wchar_t* s, ostream* os) {
+if (s == NULL) {
+*os << "NULL";
+} else {
+*os << ImplicitCast_<const void*>(s) << " pointing to ";
+PrintWideCharsAsStringTo(s, wcslen(s), os);
+}
+}
+#endif  // wchar_t is native
+// Prints a ::string object.
+#if GTEST_HAS_GLOBAL_STRING
+void PrintStringTo(const ::string& s, ostream* os) {
+PrintCharsAsStringTo(s.data(), s.size(), os);
+}
+#endif  // GTEST_HAS_GLOBAL_STRING
+void PrintStringTo(const ::std::string& s, ostream* os) {
+PrintCharsAsStringTo(s.data(), s.size(), os);
+}
+// Prints a ::wstring object.
+#if GTEST_HAS_GLOBAL_WSTRING
+void PrintWideStringTo(const ::wstring& s, ostream* os) {
+PrintWideCharsAsStringTo(s.data(), s.size(), os);
+}
+#endif  // GTEST_HAS_GLOBAL_WSTRING
+#if GTEST_HAS_STD_WSTRING
+void PrintWideStringTo(const ::std::wstring& s, ostream* os) {
+PrintWideCharsAsStringTo(s.data(), s.size(), os);
+}
+#endif  // GTEST_HAS_STD_WSTRING
+}  // namespace internal
+}  // namespace testing

Mercurial > hg > CbC > CbC_llvm

comparison utils/unittest/googletest/gtest-printers.cc @ 31:d22a1cf4041c