Checkin a version of gmock, modified to use our boost_tuple in VS2005.

testing/gmock/include/gmock/internal/gmock-port.h

+// Copyright 2008, 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: vadimb@google.com (Vadim Berman)
+//
+// Low-level types and utilities for porting Google Mock to various
+// platforms.  They are subject to change without notice.  DO NOT USE
+// THEM IN USER CODE.
+
+#ifndef GMOCK_INCLUDE_GMOCK_INTERNAL_GMOCK_PORT_H_
+#define GMOCK_INCLUDE_GMOCK_INTERNAL_GMOCK_PORT_H_
+
+#include <assert.h>
+#include <stdlib.h>
+#include <iostream>
+
+// Most of the types needed for porting Google Mock are also required
+// for Google Test and are defined in gtest-port.h.
+#include <gtest/internal/gtest-linked_ptr.h>
+#include <gtest/internal/gtest-port.h>
+
+// To avoid conditional compilation everywhere, we make it
+// gmock-port.h's responsibility to #include the header implementing
+// tr1/tuple.
+#if defined(__GNUC__) && GTEST_GCC_VER_ >= 40000
+// GTEST_GCC_VER_ is defined in gtest-port.h and 40000 corresponds to
+// version 4.0.0.
+// GCC 4.0+ implements tr1/tuple in the <tr1/tuple> header.  This does
+// not conform to the TR1 spec, which requires the header to be <tuple>.
+#include <tr1/tuple>
+#elif defined(_MSC_VER) && _MSC_VER < 1500
+// For Visual Studio older than 2008, we redirect directly to boost tuple
+// searching from boost's root.  This is to avoid extra dirtying of the
+// compiler include paths.
+#include "boost/tr1/tr1/tuple"
+#else
+// If the compiler is neither GCC 4.0+, nor Visual Studio 2008, we assume the
+// user is using a spec-conforming TR1 implementation.
+#include <tuple>
+#endif  // __GNUC__
+
+#if GTEST_OS_LINUX
+
+// On some platforms, <regex.h> needs someone to define size_t, and
+// won't compile otherwise.  We can #include it here as we already
+// included <stdlib.h>, which is guaranteed to define size_t through
+// <stddef.h>.
+#include <regex.h>  // NOLINT
+
+// Defines this iff Google Mock uses the enhanced POSIX regular
+// expression syntax.  This is public as it affects how a user uses
+// regular expression matchers.
+#define GMOCK_USES_POSIX_RE 1
+
+#endif  // GTEST_OS_LINUX
+
+#if defined(GMOCK_USES_PCRE) || defined(GMOCK_USES_POSIX_RE)
+// Defines this iff regular expression matchers are supported.  This
+// is public as it tells a user whether he can use regular expression
+// matchers.
+#define GMOCK_HAS_REGEX 1
+#endif  // defined(GMOCK_USES_PCRE) || defined(GMOCK_USES_POSIX_RE)
+
+namespace testing {
+namespace internal {
+
+// For Windows, check the compiler version. At least VS 2005 SP1 is
+// required to compile Google Mock.
+#if GTEST_OS_WINDOWS
+
+#if _MSC_VER < 1400
+#error "At least Visual Studio 2005 SP1 is required to compile Google Mock."
+#elif _MSC_VER == 1400
+
+// Unfortunately there is no unique _MSC_VER number for SP1. So for VS 2005
+// we have to check if it has SP1 by checking whether a bug fixed in SP1
+// is present. The bug in question is
+// http://connect.microsoft.com/VisualStudio/feedback/ViewFeedback.aspx?FeedbackID=101702
+// where the compiler incorrectly reports sizeof(poiter to an array).
+
+class TestForSP1 {
+ private:  // GCC complains if x_ is used by sizeof before defining it.
+  static char x_[100];
+  // VS 2005 RTM incorrectly reports sizeof(&x) as 100, and that value
+  // is used to trigger 'invalid negative array size' error. If you
+  // see this error, upgrade to VS 2005 SP1 since Google Mock will not
+  // compile in VS 2005 RTM.
+  static char Google_Mock_requires_Visual_Studio_2005_SP1_or_later_to_compile_[
+      sizeof(&x_) != 100 ? 1 : -1];
+};
+
+#endif  // _MSC_VER
+#endif  // GTEST_OS_WINDOWS
+
+// Use implicit_cast as a safe version of static_cast or const_cast
+// for upcasting in the type hierarchy (i.e. casting a pointer to Foo
+// to a pointer to SuperclassOfFoo or casting a pointer to Foo to
+// a const pointer to Foo).
+// When you use implicit_cast, the compiler checks that the cast is safe.
+// Such explicit implicit_casts are necessary in surprisingly many
+// situations where C++ demands an exact type match instead of an
+// argument type convertable to a target type.
+//
+// The From type can be inferred, so the preferred syntax for using
+// implicit_cast is the same as for static_cast etc.:
+//
+//   implicit_cast<ToType>(expr)
+//
+// implicit_cast would have been part of the C++ standard library,
+// but the proposal was submitted too late.  It will probably make
+// its way into the language in the future.
+template<typename To, typename From>
+inline To implicit_cast(From const &f) {
+  return f;
+}
+
+// When you upcast (that is, cast a pointer from type Foo to type
+// SuperclassOfFoo), it's fine to use implicit_cast<>, since upcasts
+// always succeed.  When you downcast (that is, cast a pointer from
+// type Foo to type SubclassOfFoo), static_cast<> isn't safe, because
+// how do you know the pointer is really of type SubclassOfFoo?  It
+// could be a bare Foo, or of type DifferentSubclassOfFoo.  Thus,
+// when you downcast, you should use this macro.  In debug mode, we
+// use dynamic_cast<> to double-check the downcast is legal (we die
+// if it's not).  In normal mode, we do the efficient static_cast<>
+// instead.  Thus, it's important to test in debug mode to make sure
+// the cast is legal!
+//    This is the only place in the code we should use dynamic_cast<>.
+// In particular, you SHOULDN'T be using dynamic_cast<> in order to
+// do RTTI (eg code like this:
+//    if (dynamic_cast<Subclass1>(foo)) HandleASubclass1Object(foo);
+//    if (dynamic_cast<Subclass2>(foo)) HandleASubclass2Object(foo);
+// You should design the code some other way not to need this.
+template<typename To, typename From>  // use like this: down_cast<T*>(foo);
+inline To down_cast(From* f) {  // so we only accept pointers
+  // Ensures that To is a sub-type of From *.  This test is here only
+  // for compile-time type checking, and has no overhead in an
+  // optimized build at run-time, as it will be optimized away
+  // completely.
+  if (false) {
+    implicit_cast<From*, To>(0);
+  }
+
+#if GTEST_HAS_RTTI
+  assert(f == NULL || dynamic_cast<To>(f) != NULL);  // RTTI: debug mode only!
+#endif
+  return static_cast<To>(f);
+}
+
+// The GMOCK_COMPILE_ASSERT_ macro can be used to verify that a compile time
+// expression is true. For example, you could use it to verify the
+// size of a static array:
+//
+//   GMOCK_COMPILE_ASSERT_(ARRAYSIZE(content_type_names) == CONTENT_NUM_TYPES,
+//                         content_type_names_incorrect_size);
+//
+// or to make sure a struct is smaller than a certain size:
+//
+//   GMOCK_COMPILE_ASSERT_(sizeof(foo) < 128, foo_too_large);
+//
+// The second argument to the macro is the name of the variable. If
+// the expression is false, most compilers will issue a warning/error
+// containing the name of the variable.
+
+template <bool>
+struct CompileAssert {
+};
+
+#define GMOCK_COMPILE_ASSERT_(expr, msg) \
+  typedef ::testing::internal::CompileAssert<(bool(expr))> \
+      msg[bool(expr) ? 1 : -1]
+
+// Implementation details of GMOCK_COMPILE_ASSERT_:
+//
+// - GMOCK_COMPILE_ASSERT_ works by defining an array type that has -1
+//   elements (and thus is invalid) when the expression is false.
+//
+// - The simpler definition
+//
+//    #define GMOCK_COMPILE_ASSERT_(expr, msg) typedef char msg[(expr) ? 1 : -1]
+//
+//   does not work, as gcc supports variable-length arrays whose sizes
+//   are determined at run-time (this is gcc's extension and not part
+//   of the C++ standard).  As a result, gcc fails to reject the
+//   following code with the simple definition:
+//
+//     int foo;
+//     GMOCK_COMPILE_ASSERT_(foo, msg); // not supposed to compile as foo is
+//                                      // not a compile-time constant.
+//
+// - By using the type CompileAssert<(bool(expr))>, we ensures that
+//   expr is a compile-time constant.  (Template arguments must be
+//   determined at compile-time.)
+//
+// - The outter parentheses in CompileAssert<(bool(expr))> are necessary
+//   to work around a bug in gcc 3.4.4 and 4.0.1.  If we had written
+//
+//     CompileAssert<bool(expr)>
+//
+//   instead, these compilers will refuse to compile
+//
+//     GMOCK_COMPILE_ASSERT_(5 > 0, some_message);
+//
+//   (They seem to think the ">" in "5 > 0" marks the end of the
+//   template argument list.)
+//
+// - The array size is (bool(expr) ? 1 : -1), instead of simply
+//
+//     ((expr) ? 1 : -1).
+//
+//   This is to avoid running into a bug in MS VC 7.1, which
+//   causes ((0.0) ? 1 : -1) to incorrectly evaluate to 1.
+
+#if GTEST_HAS_GLOBAL_STRING
+typedef ::string string;
+#elif GTEST_HAS_STD_STRING
+typedef ::std::string string;
+#else
+#error "Google Mock requires ::std::string to compile."
+#endif  // GTEST_HAS_GLOBAL_STRING
+
+#if GTEST_HAS_GLOBAL_WSTRING
+typedef ::wstring wstring;
+#elif GTEST_HAS_STD_WSTRING
+typedef ::std::wstring wstring;
+#endif  // GTEST_HAS_GLOBAL_WSTRING
+
+// Prints the file location in the format native to the compiler.
+inline void FormatFileLocation(const char* file, int line, ::std::ostream* os) {
+  if (file == NULL)
+    file = "unknown file";
+  if (line < 0) {
+    *os << file << ":";
+  } else {
+#if _MSC_VER
+    *os << file << "(" << line << "):";
+#else
+    *os << file << ":" << line << ":";
+#endif
+  }
+}
+
+// INTERNAL IMPLEMENTATION - DO NOT USE.
+//
+// GMOCK_CHECK_ is an all mode assert. It aborts the program if the condition
+// is not satisfied.
+//  Synopsys:
+//    GMOCK_CHECK_(boolean_condition);
+//     or
+//    GMOCK_CHECK_(boolean_condition) << "Additional message";
+//
+//    This checks the condition and if the condition is not satisfied
+//    it prints message about the condition violation, including the
+//    condition itself, plus additional message streamed into it, if any,
+//    and then it aborts the program. It aborts the program irrespective of
+//    whether it is built in the debug mode or not.
+
+class GMockCheckProvider {
+ public:
+  GMockCheckProvider(const char* condition, const char* file, int line) {
+    FormatFileLocation(file, line, &::std::cerr);
+    ::std::cerr << " ERROR: Condition " << condition << " failed. ";
+  }
+  ~GMockCheckProvider() {
+    ::std::cerr << ::std::endl;
+    abort();
+  }
+  ::std::ostream& GetStream() { return ::std::cerr; }
+};
+#define GMOCK_CHECK_(condition) \
+    GTEST_AMBIGUOUS_ELSE_BLOCKER_ \
+    if (condition) \
+      ; \
+    else \
+      ::testing::internal::GMockCheckProvider(\
+          #condition, __FILE__, __LINE__).GetStream()
+
+}  // namespace internal
+}  // namespace testing
+
+// Macro for referencing flags.  This is public as we want the user to
+// use this syntax to reference Google Mock flags.
+#define GMOCK_FLAG(name) FLAGS_gmock_##name
+
+// Macros for declaring flags.
+#define GMOCK_DECLARE_bool_(name) extern bool GMOCK_FLAG(name)
+#define GMOCK_DECLARE_int32_(name) \
+    extern ::testing::internal::Int32 GMOCK_FLAG(name)
+#define GMOCK_DECLARE_string_(name) \
+    extern ::testing::internal::String GMOCK_FLAG(name)
+
+// Macros for defining flags.
+#define GMOCK_DEFINE_bool_(name, default_val, doc) \
+    bool GMOCK_FLAG(name) = (default_val)
+#define GMOCK_DEFINE_int32_(name, default_val, doc) \
+    ::testing::internal::Int32 GMOCK_FLAG(name) = (default_val)
+#define GMOCK_DEFINE_string_(name, default_val, doc) \
+    ::testing::internal::String GMOCK_FLAG(name) = (default_val)
+
+#endif  // GMOCK_INCLUDE_GMOCK_INTERNAL_GMOCK_PORT_H_