Don't use internal gmock helper classes.

testing/gmock-support.h

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_TESTING_GMOCK_SUPPORT_H_
 #define V8_TESTING_GMOCK_SUPPORT_H_
 
 #include <cmath>
 #include <cstring>
+#include <string>
 
 #include "testing/gmock/include/gmock/gmock.h"
 
 namespace testing {
 
 template <typename T>
 class Capture {
  public:
   Capture() : value_(), has_value_(false) {}
 
   const T& value() const { return value_; }
   bool has_value() const { return has_value_; }
 
   void SetValue(const T& value) {
     DCHECK(!has_value());
     value_ = value;
     has_value_ = true;
   }
 
  private:
   T value_;
   bool has_value_;
 };
 
 
 namespace internal {
 
-struct AnyBitEq {
-  template <typename A, typename B>
-  bool operator()(A const& a, B const& b) const {
-    if (sizeof(A) != sizeof(B)) return false;
-    return std::memcmp(&a, &b, sizeof(A)) == 0;
-  }
-};
-
-
-template <typename Rhs>
-class BitEqMatcher : public ComparisonBase<BitEqMatcher<Rhs>, Rhs, AnyBitEq> {
- public:
-  explicit BitEqMatcher(Rhs const& rhs)
-      : ComparisonBase<BitEqMatcher<Rhs>, Rhs, AnyBitEq>(rhs) {}
-  static const char* Desc() { return "is bitwise equal to"; }
-  static const char* NegatedDesc() { return "isn't bitwise equal to"; }
-};
-
-
 template <typename T>
 class CaptureEqMatcher : public MatcherInterface<T> {
  public:
   explicit CaptureEqMatcher(Capture<T>* capture) : capture_(capture) {}
 
   virtual void DescribeTo(std::ostream* os) const {
     *os << "captured by " << static_cast<const void*>(capture_);
     if (capture_->has_value()) *os << " which has value " << capture_->value();
   }
 
@@ skipping 10 matching lines @@
   }
 
  private:
   Capture<T>* capture_;
 };
 
 }  // namespace internal
 
 
 // Creates a polymorphic matcher that matches anything whose bit representation
-// is equal to that of x.
-template <typename T>
-inline internal::BitEqMatcher<T> BitEq(T const& x) {
-  return internal::BitEqMatcher<T>(x);
+// is equal to that of {x}.
+MATCHER_P(BitEq, x, std::string(negation ? "isn't" : "is") +
+                        " bitwise equal to " + PrintToString(x)) {
+  static_assert(sizeof(x) == sizeof(arg), "Size mismatch");
+  return std::memcmp(&arg, &x, sizeof(x)) == 0;
 }
 
 
 // CaptureEq(capture) captures the value passed in during matching as long as it
 // is unset, and once set, compares the value for equality with the argument.
 template <typename T>
 inline Matcher<T> CaptureEq(Capture<T>* capture) {
   return MakeMatcher(new internal::CaptureEqMatcher<T>(capture));
 }
 
 
 // Creates a polymorphic matcher that matches any floating point NaN value.
 MATCHER(IsNaN, std::string(negation ? "isn't" : "is") + " not a number") {
   return std::isnan(arg);
 }
 
 }  // namespace testing
 
 #endif  // V8_TESTING_GMOCK_SUPPORT_H_