gmock-matchers.h revision 02f7106557fde1f1075dc53d65ef1f7a11851f93
1e35fdd936d133bf8a48de140a3c666897588a05shiqian// Copyright 2007, Google Inc. 2e35fdd936d133bf8a48de140a3c666897588a05shiqian// All rights reserved. 3e35fdd936d133bf8a48de140a3c666897588a05shiqian// 4e35fdd936d133bf8a48de140a3c666897588a05shiqian// Redistribution and use in source and binary forms, with or without 5e35fdd936d133bf8a48de140a3c666897588a05shiqian// modification, are permitted provided that the following conditions are 6e35fdd936d133bf8a48de140a3c666897588a05shiqian// met: 7e35fdd936d133bf8a48de140a3c666897588a05shiqian// 8e35fdd936d133bf8a48de140a3c666897588a05shiqian// * Redistributions of source code must retain the above copyright 9e35fdd936d133bf8a48de140a3c666897588a05shiqian// notice, this list of conditions and the following disclaimer. 10e35fdd936d133bf8a48de140a3c666897588a05shiqian// * Redistributions in binary form must reproduce the above 11e35fdd936d133bf8a48de140a3c666897588a05shiqian// copyright notice, this list of conditions and the following disclaimer 12e35fdd936d133bf8a48de140a3c666897588a05shiqian// in the documentation and/or other materials provided with the 13e35fdd936d133bf8a48de140a3c666897588a05shiqian// distribution. 14e35fdd936d133bf8a48de140a3c666897588a05shiqian// * Neither the name of Google Inc. nor the names of its 15e35fdd936d133bf8a48de140a3c666897588a05shiqian// contributors may be used to endorse or promote products derived from 16e35fdd936d133bf8a48de140a3c666897588a05shiqian// this software without specific prior written permission. 17e35fdd936d133bf8a48de140a3c666897588a05shiqian// 18e35fdd936d133bf8a48de140a3c666897588a05shiqian// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19e35fdd936d133bf8a48de140a3c666897588a05shiqian// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20e35fdd936d133bf8a48de140a3c666897588a05shiqian// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21e35fdd936d133bf8a48de140a3c666897588a05shiqian// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22e35fdd936d133bf8a48de140a3c666897588a05shiqian// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23e35fdd936d133bf8a48de140a3c666897588a05shiqian// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24e35fdd936d133bf8a48de140a3c666897588a05shiqian// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25e35fdd936d133bf8a48de140a3c666897588a05shiqian// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26e35fdd936d133bf8a48de140a3c666897588a05shiqian// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27e35fdd936d133bf8a48de140a3c666897588a05shiqian// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28e35fdd936d133bf8a48de140a3c666897588a05shiqian// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29e35fdd936d133bf8a48de140a3c666897588a05shiqian// 30e35fdd936d133bf8a48de140a3c666897588a05shiqian// Author: wan@google.com (Zhanyong Wan) 31e35fdd936d133bf8a48de140a3c666897588a05shiqian 32e35fdd936d133bf8a48de140a3c666897588a05shiqian// Google Mock - a framework for writing C++ mock classes. 33e35fdd936d133bf8a48de140a3c666897588a05shiqian// 34e35fdd936d133bf8a48de140a3c666897588a05shiqian// This file implements some commonly used argument matchers. More 35e35fdd936d133bf8a48de140a3c666897588a05shiqian// matchers can be defined by the user implementing the 36e35fdd936d133bf8a48de140a3c666897588a05shiqian// MatcherInterface<T> interface if necessary. 37e35fdd936d133bf8a48de140a3c666897588a05shiqian 38e35fdd936d133bf8a48de140a3c666897588a05shiqian#ifndef GMOCK_INCLUDE_GMOCK_GMOCK_MATCHERS_H_ 39e35fdd936d133bf8a48de140a3c666897588a05shiqian#define GMOCK_INCLUDE_GMOCK_GMOCK_MATCHERS_H_ 40e35fdd936d133bf8a48de140a3c666897588a05shiqian 416a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan#include <algorithm> 4216cf473930c01cd7a1a51dff65f22c541fbad5b8zhanyong.wan#include <limits> 43e35fdd936d133bf8a48de140a3c666897588a05shiqian#include <ostream> // NOLINT 44e35fdd936d133bf8a48de140a3c666897588a05shiqian#include <sstream> 45e35fdd936d133bf8a48de140a3c666897588a05shiqian#include <string> 46e35fdd936d133bf8a48de140a3c666897588a05shiqian#include <vector> 47e35fdd936d133bf8a48de140a3c666897588a05shiqian 48e35fdd936d133bf8a48de140a3c666897588a05shiqian#include <gmock/internal/gmock-internal-utils.h> 49e35fdd936d133bf8a48de140a3c666897588a05shiqian#include <gmock/internal/gmock-port.h> 50e35fdd936d133bf8a48de140a3c666897588a05shiqian#include <gtest/gtest.h> 51e35fdd936d133bf8a48de140a3c666897588a05shiqian 52e35fdd936d133bf8a48de140a3c666897588a05shiqiannamespace testing { 53e35fdd936d133bf8a48de140a3c666897588a05shiqian 54e35fdd936d133bf8a48de140a3c666897588a05shiqian// To implement a matcher Foo for type T, define: 55e35fdd936d133bf8a48de140a3c666897588a05shiqian// 1. a class FooMatcherImpl that implements the 56e35fdd936d133bf8a48de140a3c666897588a05shiqian// MatcherInterface<T> interface, and 57e35fdd936d133bf8a48de140a3c666897588a05shiqian// 2. a factory function that creates a Matcher<T> object from a 58e35fdd936d133bf8a48de140a3c666897588a05shiqian// FooMatcherImpl*. 59e35fdd936d133bf8a48de140a3c666897588a05shiqian// 60e35fdd936d133bf8a48de140a3c666897588a05shiqian// The two-level delegation design makes it possible to allow a user 61e35fdd936d133bf8a48de140a3c666897588a05shiqian// to write "v" instead of "Eq(v)" where a Matcher is expected, which 62e35fdd936d133bf8a48de140a3c666897588a05shiqian// is impossible if we pass matchers by pointers. It also eases 63e35fdd936d133bf8a48de140a3c666897588a05shiqian// ownership management as Matcher objects can now be copied like 64e35fdd936d133bf8a48de140a3c666897588a05shiqian// plain values. 65e35fdd936d133bf8a48de140a3c666897588a05shiqian 66821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan// MatchResultListener is an abstract class. Its << operator can be 67821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan// used by a matcher to explain why a value matches or doesn't match. 68821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan// 69821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan// TODO(wan@google.com): add method 70821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan// bool InterestedInWhy(bool result) const; 71821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan// to indicate whether the listener is interested in why the match 72821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan// result is 'result'. 73821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wanclass MatchResultListener { 74821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan public: 75821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // Creates a listener object with the given underlying ostream. The 76821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // listener does not own the ostream. 77821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan explicit MatchResultListener(::std::ostream* os) : stream_(os) {} 78821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan virtual ~MatchResultListener() = 0; // Makes this class abstract. 79821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan 80821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // Streams x to the underlying ostream; does nothing if the ostream 81821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // is NULL. 82821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan template <typename T> 83821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan MatchResultListener& operator<<(const T& x) { 84821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan if (stream_ != NULL) 85821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan *stream_ << x; 86821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan return *this; 87821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan } 88821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan 89821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // Returns the underlying ostream. 90821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan ::std::ostream* stream() { return stream_; } 91821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan 92a862f1de30ed1ef259bcec61c5939200b29c765czhanyong.wan // Returns true iff the listener is interested in an explanation of 93a862f1de30ed1ef259bcec61c5939200b29c765czhanyong.wan // the match result. A matcher's MatchAndExplain() method can use 94a862f1de30ed1ef259bcec61c5939200b29c765czhanyong.wan // this information to avoid generating the explanation when no one 95a862f1de30ed1ef259bcec61c5939200b29c765czhanyong.wan // intends to hear it. 96a862f1de30ed1ef259bcec61c5939200b29c765czhanyong.wan bool IsInterested() const { return stream_ != NULL; } 97a862f1de30ed1ef259bcec61c5939200b29c765czhanyong.wan 98821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan private: 99821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan ::std::ostream* const stream_; 100821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan 101821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan GTEST_DISALLOW_COPY_AND_ASSIGN_(MatchResultListener); 102821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan}; 103821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan 104821133180ccdb9eb062548d964929ba3b354eb84zhanyong.waninline MatchResultListener::~MatchResultListener() { 105821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan} 106821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan 107e35fdd936d133bf8a48de140a3c666897588a05shiqian// The implementation of a matcher. 108e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T> 109e35fdd936d133bf8a48de140a3c666897588a05shiqianclass MatcherInterface { 110e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 111e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual ~MatcherInterface() {} 112e35fdd936d133bf8a48de140a3c666897588a05shiqian 113821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // Returns true iff the matcher matches x; also explains the match 114a862f1de30ed1ef259bcec61c5939200b29c765czhanyong.wan // result to 'listener', in the form of a non-restrictive relative 115a862f1de30ed1ef259bcec61c5939200b29c765czhanyong.wan // clause ("which ...", "whose ...", etc) that describes x. For 116a862f1de30ed1ef259bcec61c5939200b29c765czhanyong.wan // example, the MatchAndExplain() method of the Pointee(...) matcher 117a862f1de30ed1ef259bcec61c5939200b29c765czhanyong.wan // should generate an explanation like "which points to ...". 118821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // 119db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan // You should override this method when defining a new matcher. 120821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // 121821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // It's the responsibility of the caller (Google Mock) to guarantee 122821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // that 'listener' is not NULL. This helps to simplify a matcher's 123821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // implementation when it doesn't care about the performance, as it 124821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // can talk to 'listener' without checking its validity first. 125821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // However, in order to implement dummy listeners efficiently, 126821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // listener->stream() may be NULL. 127db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan virtual bool MatchAndExplain(T x, MatchResultListener* listener) const = 0; 128e35fdd936d133bf8a48de140a3c666897588a05shiqian 129a862f1de30ed1ef259bcec61c5939200b29c765czhanyong.wan // Describes this matcher to an ostream. The function should print 130a862f1de30ed1ef259bcec61c5939200b29c765czhanyong.wan // a verb phrase that describes the property a value matching this 131a862f1de30ed1ef259bcec61c5939200b29c765czhanyong.wan // matcher should have. The subject of the verb phrase is the value 132a862f1de30ed1ef259bcec61c5939200b29c765czhanyong.wan // being matched. For example, the DescribeTo() method of the Gt(7) 133a862f1de30ed1ef259bcec61c5939200b29c765czhanyong.wan // matcher prints "is greater than 7". 134e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeTo(::std::ostream* os) const = 0; 135e35fdd936d133bf8a48de140a3c666897588a05shiqian 136e35fdd936d133bf8a48de140a3c666897588a05shiqian // Describes the negation of this matcher to an ostream. For 137e35fdd936d133bf8a48de140a3c666897588a05shiqian // example, if the description of this matcher is "is greater than 138e35fdd936d133bf8a48de140a3c666897588a05shiqian // 7", the negated description could be "is not greater than 7". 139e35fdd936d133bf8a48de140a3c666897588a05shiqian // You are not required to override this when implementing 140e35fdd936d133bf8a48de140a3c666897588a05shiqian // MatcherInterface, but it is highly advised so that your matcher 141e35fdd936d133bf8a48de140a3c666897588a05shiqian // can produce good error messages. 142e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeNegationTo(::std::ostream* os) const { 143e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "not ("; 144e35fdd936d133bf8a48de140a3c666897588a05shiqian DescribeTo(os); 145e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << ")"; 146e35fdd936d133bf8a48de140a3c666897588a05shiqian } 147e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 148e35fdd936d133bf8a48de140a3c666897588a05shiqian 149e35fdd936d133bf8a48de140a3c666897588a05shiqiannamespace internal { 150e35fdd936d133bf8a48de140a3c666897588a05shiqian 151821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan// A match result listener that ignores the explanation. 152821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wanclass DummyMatchResultListener : public MatchResultListener { 153821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan public: 154821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan DummyMatchResultListener() : MatchResultListener(NULL) {} 155821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan 156821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan private: 157821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan GTEST_DISALLOW_COPY_AND_ASSIGN_(DummyMatchResultListener); 158821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan}; 159821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan 160821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan// A match result listener that forwards the explanation to a given 161821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan// ostream. The difference between this and MatchResultListener is 162821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan// that the former is concrete. 163821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wanclass StreamMatchResultListener : public MatchResultListener { 164821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan public: 165821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan explicit StreamMatchResultListener(::std::ostream* os) 166821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan : MatchResultListener(os) {} 167821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan 168821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan private: 169821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan GTEST_DISALLOW_COPY_AND_ASSIGN_(StreamMatchResultListener); 170821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan}; 171821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan 172821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan// A match result listener that stores the explanation in a string. 173821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wanclass StringMatchResultListener : public MatchResultListener { 174821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan public: 175821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan StringMatchResultListener() : MatchResultListener(&ss_) {} 176821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan 177821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // Returns the explanation heard so far. 178821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan internal::string str() const { return ss_.str(); } 179821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan 180821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan private: 181821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan ::std::stringstream ss_; 182821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan 183821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan GTEST_DISALLOW_COPY_AND_ASSIGN_(StringMatchResultListener); 184821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan}; 185821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan 186e35fdd936d133bf8a48de140a3c666897588a05shiqian// An internal class for implementing Matcher<T>, which will derive 187e35fdd936d133bf8a48de140a3c666897588a05shiqian// from it. We put functionalities common to all Matcher<T> 188e35fdd936d133bf8a48de140a3c666897588a05shiqian// specializations here to avoid code duplication. 189e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T> 190e35fdd936d133bf8a48de140a3c666897588a05shiqianclass MatcherBase { 191e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 192821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // Returns true iff the matcher matches x; also explains the match 193821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // result to 'listener'. 194821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan bool MatchAndExplain(T x, MatchResultListener* listener) const { 195821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan return impl_->MatchAndExplain(x, listener); 196821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan } 197821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan 198e35fdd936d133bf8a48de140a3c666897588a05shiqian // Returns true iff this matcher matches x. 199821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan bool Matches(T x) const { 200821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan DummyMatchResultListener dummy; 201821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan return MatchAndExplain(x, &dummy); 202821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan } 203e35fdd936d133bf8a48de140a3c666897588a05shiqian 204e35fdd936d133bf8a48de140a3c666897588a05shiqian // Describes this matcher to an ostream. 205e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeTo(::std::ostream* os) const { impl_->DescribeTo(os); } 206e35fdd936d133bf8a48de140a3c666897588a05shiqian 207e35fdd936d133bf8a48de140a3c666897588a05shiqian // Describes the negation of this matcher to an ostream. 208e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeNegationTo(::std::ostream* os) const { 209e35fdd936d133bf8a48de140a3c666897588a05shiqian impl_->DescribeNegationTo(os); 210e35fdd936d133bf8a48de140a3c666897588a05shiqian } 211e35fdd936d133bf8a48de140a3c666897588a05shiqian 212e35fdd936d133bf8a48de140a3c666897588a05shiqian // Explains why x matches, or doesn't match, the matcher. 213e35fdd936d133bf8a48de140a3c666897588a05shiqian void ExplainMatchResultTo(T x, ::std::ostream* os) const { 214821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan StreamMatchResultListener listener(os); 215821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan MatchAndExplain(x, &listener); 216e35fdd936d133bf8a48de140a3c666897588a05shiqian } 21732de5f53763125925e078498250f7e73a88de9edzhanyong.wan 218e35fdd936d133bf8a48de140a3c666897588a05shiqian protected: 219e35fdd936d133bf8a48de140a3c666897588a05shiqian MatcherBase() {} 220e35fdd936d133bf8a48de140a3c666897588a05shiqian 221e35fdd936d133bf8a48de140a3c666897588a05shiqian // Constructs a matcher from its implementation. 222e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit MatcherBase(const MatcherInterface<T>* impl) 223e35fdd936d133bf8a48de140a3c666897588a05shiqian : impl_(impl) {} 224e35fdd936d133bf8a48de140a3c666897588a05shiqian 225e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual ~MatcherBase() {} 22632de5f53763125925e078498250f7e73a88de9edzhanyong.wan 227e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 228e35fdd936d133bf8a48de140a3c666897588a05shiqian // shared_ptr (util/gtl/shared_ptr.h) and linked_ptr have similar 229e35fdd936d133bf8a48de140a3c666897588a05shiqian // interfaces. The former dynamically allocates a chunk of memory 230e35fdd936d133bf8a48de140a3c666897588a05shiqian // to hold the reference count, while the latter tracks all 231e35fdd936d133bf8a48de140a3c666897588a05shiqian // references using a circular linked list without allocating 232e35fdd936d133bf8a48de140a3c666897588a05shiqian // memory. It has been observed that linked_ptr performs better in 233e35fdd936d133bf8a48de140a3c666897588a05shiqian // typical scenarios. However, shared_ptr can out-perform 234e35fdd936d133bf8a48de140a3c666897588a05shiqian // linked_ptr when there are many more uses of the copy constructor 235e35fdd936d133bf8a48de140a3c666897588a05shiqian // than the default constructor. 236e35fdd936d133bf8a48de140a3c666897588a05shiqian // 237e35fdd936d133bf8a48de140a3c666897588a05shiqian // If performance becomes a problem, we should see if using 238e35fdd936d133bf8a48de140a3c666897588a05shiqian // shared_ptr helps. 239e35fdd936d133bf8a48de140a3c666897588a05shiqian ::testing::internal::linked_ptr<const MatcherInterface<T> > impl_; 240e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 241e35fdd936d133bf8a48de140a3c666897588a05shiqian 242e35fdd936d133bf8a48de140a3c666897588a05shiqian} // namespace internal 243e35fdd936d133bf8a48de140a3c666897588a05shiqian 244e35fdd936d133bf8a48de140a3c666897588a05shiqian// A Matcher<T> is a copyable and IMMUTABLE (except by assignment) 245e35fdd936d133bf8a48de140a3c666897588a05shiqian// object that can check whether a value of type T matches. The 246e35fdd936d133bf8a48de140a3c666897588a05shiqian// implementation of Matcher<T> is just a linked_ptr to const 247e35fdd936d133bf8a48de140a3c666897588a05shiqian// MatcherInterface<T>, so copying is fairly cheap. Don't inherit 248e35fdd936d133bf8a48de140a3c666897588a05shiqian// from Matcher! 249e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T> 250e35fdd936d133bf8a48de140a3c666897588a05shiqianclass Matcher : public internal::MatcherBase<T> { 251e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 252e35fdd936d133bf8a48de140a3c666897588a05shiqian // Constructs a null matcher. Needed for storing Matcher objects in 253e35fdd936d133bf8a48de140a3c666897588a05shiqian // STL containers. 254e35fdd936d133bf8a48de140a3c666897588a05shiqian Matcher() {} 255e35fdd936d133bf8a48de140a3c666897588a05shiqian 256e35fdd936d133bf8a48de140a3c666897588a05shiqian // Constructs a matcher from its implementation. 257e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit Matcher(const MatcherInterface<T>* impl) 258e35fdd936d133bf8a48de140a3c666897588a05shiqian : internal::MatcherBase<T>(impl) {} 259e35fdd936d133bf8a48de140a3c666897588a05shiqian 26018490653e80d484b4650d8799184fd1e021efc7bzhanyong.wan // Implicit constructor here allows people to write 261e35fdd936d133bf8a48de140a3c666897588a05shiqian // EXPECT_CALL(foo, Bar(5)) instead of EXPECT_CALL(foo, Bar(Eq(5))) sometimes 262e35fdd936d133bf8a48de140a3c666897588a05shiqian Matcher(T value); // NOLINT 263e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 264e35fdd936d133bf8a48de140a3c666897588a05shiqian 265e35fdd936d133bf8a48de140a3c666897588a05shiqian// The following two specializations allow the user to write str 266e35fdd936d133bf8a48de140a3c666897588a05shiqian// instead of Eq(str) and "foo" instead of Eq("foo") when a string 267e35fdd936d133bf8a48de140a3c666897588a05shiqian// matcher is expected. 268e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <> 269e35fdd936d133bf8a48de140a3c666897588a05shiqianclass Matcher<const internal::string&> 270e35fdd936d133bf8a48de140a3c666897588a05shiqian : public internal::MatcherBase<const internal::string&> { 271e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 272e35fdd936d133bf8a48de140a3c666897588a05shiqian Matcher() {} 273e35fdd936d133bf8a48de140a3c666897588a05shiqian 274e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit Matcher(const MatcherInterface<const internal::string&>* impl) 275e35fdd936d133bf8a48de140a3c666897588a05shiqian : internal::MatcherBase<const internal::string&>(impl) {} 276e35fdd936d133bf8a48de140a3c666897588a05shiqian 277e35fdd936d133bf8a48de140a3c666897588a05shiqian // Allows the user to write str instead of Eq(str) sometimes, where 278e35fdd936d133bf8a48de140a3c666897588a05shiqian // str is a string object. 279e35fdd936d133bf8a48de140a3c666897588a05shiqian Matcher(const internal::string& s); // NOLINT 280e35fdd936d133bf8a48de140a3c666897588a05shiqian 281e35fdd936d133bf8a48de140a3c666897588a05shiqian // Allows the user to write "foo" instead of Eq("foo") sometimes. 282e35fdd936d133bf8a48de140a3c666897588a05shiqian Matcher(const char* s); // NOLINT 283e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 284e35fdd936d133bf8a48de140a3c666897588a05shiqian 285e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <> 286e35fdd936d133bf8a48de140a3c666897588a05shiqianclass Matcher<internal::string> 287e35fdd936d133bf8a48de140a3c666897588a05shiqian : public internal::MatcherBase<internal::string> { 288e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 289e35fdd936d133bf8a48de140a3c666897588a05shiqian Matcher() {} 290e35fdd936d133bf8a48de140a3c666897588a05shiqian 291e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit Matcher(const MatcherInterface<internal::string>* impl) 292e35fdd936d133bf8a48de140a3c666897588a05shiqian : internal::MatcherBase<internal::string>(impl) {} 293e35fdd936d133bf8a48de140a3c666897588a05shiqian 294e35fdd936d133bf8a48de140a3c666897588a05shiqian // Allows the user to write str instead of Eq(str) sometimes, where 295e35fdd936d133bf8a48de140a3c666897588a05shiqian // str is a string object. 296e35fdd936d133bf8a48de140a3c666897588a05shiqian Matcher(const internal::string& s); // NOLINT 297e35fdd936d133bf8a48de140a3c666897588a05shiqian 298e35fdd936d133bf8a48de140a3c666897588a05shiqian // Allows the user to write "foo" instead of Eq("foo") sometimes. 299e35fdd936d133bf8a48de140a3c666897588a05shiqian Matcher(const char* s); // NOLINT 300e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 301e35fdd936d133bf8a48de140a3c666897588a05shiqian 302e35fdd936d133bf8a48de140a3c666897588a05shiqian// The PolymorphicMatcher class template makes it easy to implement a 303e35fdd936d133bf8a48de140a3c666897588a05shiqian// polymorphic matcher (i.e. a matcher that can match values of more 304e35fdd936d133bf8a48de140a3c666897588a05shiqian// than one type, e.g. Eq(n) and NotNull()). 305e35fdd936d133bf8a48de140a3c666897588a05shiqian// 306db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan// To define a polymorphic matcher, a user should provide an Impl 307db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan// class that has a DescribeTo() method and a DescribeNegationTo() 308db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan// method, and define a member function (or member function template) 309821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan// 310db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan// bool MatchAndExplain(const Value& value, 311db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan// MatchResultListener* listener) const; 312821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan// 313821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan// See the definition of NotNull() for a complete example. 314e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <class Impl> 315e35fdd936d133bf8a48de140a3c666897588a05shiqianclass PolymorphicMatcher { 316e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 31732de5f53763125925e078498250f7e73a88de9edzhanyong.wan explicit PolymorphicMatcher(const Impl& an_impl) : impl_(an_impl) {} 318e35fdd936d133bf8a48de140a3c666897588a05shiqian 3192b43a9ecd16edc1ec55429967e0f2de1aaf8e8bbzhanyong.wan // Returns a mutable reference to the underlying matcher 3202b43a9ecd16edc1ec55429967e0f2de1aaf8e8bbzhanyong.wan // implementation object. 3212b43a9ecd16edc1ec55429967e0f2de1aaf8e8bbzhanyong.wan Impl& mutable_impl() { return impl_; } 3222b43a9ecd16edc1ec55429967e0f2de1aaf8e8bbzhanyong.wan 3232b43a9ecd16edc1ec55429967e0f2de1aaf8e8bbzhanyong.wan // Returns an immutable reference to the underlying matcher 3242b43a9ecd16edc1ec55429967e0f2de1aaf8e8bbzhanyong.wan // implementation object. 3252b43a9ecd16edc1ec55429967e0f2de1aaf8e8bbzhanyong.wan const Impl& impl() const { return impl_; } 3262b43a9ecd16edc1ec55429967e0f2de1aaf8e8bbzhanyong.wan 327e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename T> 328e35fdd936d133bf8a48de140a3c666897588a05shiqian operator Matcher<T>() const { 329e35fdd936d133bf8a48de140a3c666897588a05shiqian return Matcher<T>(new MonomorphicImpl<T>(impl_)); 330e35fdd936d133bf8a48de140a3c666897588a05shiqian } 33132de5f53763125925e078498250f7e73a88de9edzhanyong.wan 332e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 333e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename T> 334e35fdd936d133bf8a48de140a3c666897588a05shiqian class MonomorphicImpl : public MatcherInterface<T> { 335e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 336e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit MonomorphicImpl(const Impl& impl) : impl_(impl) {} 337e35fdd936d133bf8a48de140a3c666897588a05shiqian 338e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeTo(::std::ostream* os) const { 339e35fdd936d133bf8a48de140a3c666897588a05shiqian impl_.DescribeTo(os); 340e35fdd936d133bf8a48de140a3c666897588a05shiqian } 341e35fdd936d133bf8a48de140a3c666897588a05shiqian 342e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeNegationTo(::std::ostream* os) const { 343e35fdd936d133bf8a48de140a3c666897588a05shiqian impl_.DescribeNegationTo(os); 344e35fdd936d133bf8a48de140a3c666897588a05shiqian } 345e35fdd936d133bf8a48de140a3c666897588a05shiqian 346821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan virtual bool MatchAndExplain(T x, MatchResultListener* listener) const { 347db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan return impl_.MatchAndExplain(x, listener); 348e35fdd936d133bf8a48de140a3c666897588a05shiqian } 3492b43a9ecd16edc1ec55429967e0f2de1aaf8e8bbzhanyong.wan 350e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 351e35fdd936d133bf8a48de140a3c666897588a05shiqian const Impl impl_; 35232de5f53763125925e078498250f7e73a88de9edzhanyong.wan 35332de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(MonomorphicImpl); 354e35fdd936d133bf8a48de140a3c666897588a05shiqian }; 355e35fdd936d133bf8a48de140a3c666897588a05shiqian 3562b43a9ecd16edc1ec55429967e0f2de1aaf8e8bbzhanyong.wan Impl impl_; 35732de5f53763125925e078498250f7e73a88de9edzhanyong.wan 35832de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(PolymorphicMatcher); 359e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 360e35fdd936d133bf8a48de140a3c666897588a05shiqian 361e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a matcher from its implementation. This is easier to use 362e35fdd936d133bf8a48de140a3c666897588a05shiqian// than the Matcher<T> constructor as it doesn't require you to 363e35fdd936d133bf8a48de140a3c666897588a05shiqian// explicitly write the template argument, e.g. 364e35fdd936d133bf8a48de140a3c666897588a05shiqian// 365e35fdd936d133bf8a48de140a3c666897588a05shiqian// MakeMatcher(foo); 366e35fdd936d133bf8a48de140a3c666897588a05shiqian// vs 367e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matcher<const string&>(foo); 368e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T> 369e35fdd936d133bf8a48de140a3c666897588a05shiqianinline Matcher<T> MakeMatcher(const MatcherInterface<T>* impl) { 370e35fdd936d133bf8a48de140a3c666897588a05shiqian return Matcher<T>(impl); 371e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 372e35fdd936d133bf8a48de140a3c666897588a05shiqian 373e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a polymorphic matcher from its implementation. This is 374e35fdd936d133bf8a48de140a3c666897588a05shiqian// easier to use than the PolymorphicMatcher<Impl> constructor as it 375e35fdd936d133bf8a48de140a3c666897588a05shiqian// doesn't require you to explicitly write the template argument, e.g. 376e35fdd936d133bf8a48de140a3c666897588a05shiqian// 377e35fdd936d133bf8a48de140a3c666897588a05shiqian// MakePolymorphicMatcher(foo); 378e35fdd936d133bf8a48de140a3c666897588a05shiqian// vs 379e35fdd936d133bf8a48de140a3c666897588a05shiqian// PolymorphicMatcher<TypeOfFoo>(foo); 380e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <class Impl> 381e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<Impl> MakePolymorphicMatcher(const Impl& impl) { 382e35fdd936d133bf8a48de140a3c666897588a05shiqian return PolymorphicMatcher<Impl>(impl); 383e35fdd936d133bf8a48de140a3c666897588a05shiqian} 384e35fdd936d133bf8a48de140a3c666897588a05shiqian 385e35fdd936d133bf8a48de140a3c666897588a05shiqian// In order to be safe and clear, casting between different matcher 386e35fdd936d133bf8a48de140a3c666897588a05shiqian// types is done explicitly via MatcherCast<T>(m), which takes a 387e35fdd936d133bf8a48de140a3c666897588a05shiqian// matcher m and returns a Matcher<T>. It compiles only when T can be 388e35fdd936d133bf8a48de140a3c666897588a05shiqian// statically converted to the argument type of m. 389e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T, typename M> 390e35fdd936d133bf8a48de140a3c666897588a05shiqianMatcher<T> MatcherCast(M m); 391e35fdd936d133bf8a48de140a3c666897588a05shiqian 39218490653e80d484b4650d8799184fd1e021efc7bzhanyong.wan// Implements SafeMatcherCast(). 39318490653e80d484b4650d8799184fd1e021efc7bzhanyong.wan// 39495b12332c345cee508a8e2b68e007280392506e0zhanyong.wan// We use an intermediate class to do the actual safe casting as Nokia's 39595b12332c345cee508a8e2b68e007280392506e0zhanyong.wan// Symbian compiler cannot decide between 39695b12332c345cee508a8e2b68e007280392506e0zhanyong.wan// template <T, M> ... (M) and 39795b12332c345cee508a8e2b68e007280392506e0zhanyong.wan// template <T, U> ... (const Matcher<U>&) 39895b12332c345cee508a8e2b68e007280392506e0zhanyong.wan// for function templates but can for member function templates. 39995b12332c345cee508a8e2b68e007280392506e0zhanyong.wantemplate <typename T> 40095b12332c345cee508a8e2b68e007280392506e0zhanyong.wanclass SafeMatcherCastImpl { 40195b12332c345cee508a8e2b68e007280392506e0zhanyong.wan public: 40295b12332c345cee508a8e2b68e007280392506e0zhanyong.wan // This overload handles polymorphic matchers only since monomorphic 40395b12332c345cee508a8e2b68e007280392506e0zhanyong.wan // matchers are handled by the next one. 40495b12332c345cee508a8e2b68e007280392506e0zhanyong.wan template <typename M> 40595b12332c345cee508a8e2b68e007280392506e0zhanyong.wan static inline Matcher<T> Cast(M polymorphic_matcher) { 40695b12332c345cee508a8e2b68e007280392506e0zhanyong.wan return Matcher<T>(polymorphic_matcher); 40795b12332c345cee508a8e2b68e007280392506e0zhanyong.wan } 40818490653e80d484b4650d8799184fd1e021efc7bzhanyong.wan 40995b12332c345cee508a8e2b68e007280392506e0zhanyong.wan // This overload handles monomorphic matchers. 41095b12332c345cee508a8e2b68e007280392506e0zhanyong.wan // 41195b12332c345cee508a8e2b68e007280392506e0zhanyong.wan // In general, if type T can be implicitly converted to type U, we can 41295b12332c345cee508a8e2b68e007280392506e0zhanyong.wan // safely convert a Matcher<U> to a Matcher<T> (i.e. Matcher is 41395b12332c345cee508a8e2b68e007280392506e0zhanyong.wan // contravariant): just keep a copy of the original Matcher<U>, convert the 41495b12332c345cee508a8e2b68e007280392506e0zhanyong.wan // argument from type T to U, and then pass it to the underlying Matcher<U>. 41595b12332c345cee508a8e2b68e007280392506e0zhanyong.wan // The only exception is when U is a reference and T is not, as the 41695b12332c345cee508a8e2b68e007280392506e0zhanyong.wan // underlying Matcher<U> may be interested in the argument's address, which 41795b12332c345cee508a8e2b68e007280392506e0zhanyong.wan // is not preserved in the conversion from T to U. 41895b12332c345cee508a8e2b68e007280392506e0zhanyong.wan template <typename U> 41995b12332c345cee508a8e2b68e007280392506e0zhanyong.wan static inline Matcher<T> Cast(const Matcher<U>& matcher) { 42095b12332c345cee508a8e2b68e007280392506e0zhanyong.wan // Enforce that T can be implicitly converted to U. 42102f7106557fde1f1075dc53d65ef1f7a11851f93zhanyong.wan GTEST_COMPILE_ASSERT_((internal::ImplicitlyConvertible<T, U>::value), 42295b12332c345cee508a8e2b68e007280392506e0zhanyong.wan T_must_be_implicitly_convertible_to_U); 42395b12332c345cee508a8e2b68e007280392506e0zhanyong.wan // Enforce that we are not converting a non-reference type T to a reference 42495b12332c345cee508a8e2b68e007280392506e0zhanyong.wan // type U. 42502f7106557fde1f1075dc53d65ef1f7a11851f93zhanyong.wan GTEST_COMPILE_ASSERT_( 42695b12332c345cee508a8e2b68e007280392506e0zhanyong.wan internal::is_reference<T>::value || !internal::is_reference<U>::value, 42795b12332c345cee508a8e2b68e007280392506e0zhanyong.wan cannot_convert_non_referentce_arg_to_reference); 42895b12332c345cee508a8e2b68e007280392506e0zhanyong.wan // In case both T and U are arithmetic types, enforce that the 42995b12332c345cee508a8e2b68e007280392506e0zhanyong.wan // conversion is not lossy. 43002f7106557fde1f1075dc53d65ef1f7a11851f93zhanyong.wan typedef GTEST_REMOVE_CONST_(GTEST_REMOVE_REFERENCE_(T)) RawT; 43102f7106557fde1f1075dc53d65ef1f7a11851f93zhanyong.wan typedef GTEST_REMOVE_CONST_(GTEST_REMOVE_REFERENCE_(U)) RawU; 43295b12332c345cee508a8e2b68e007280392506e0zhanyong.wan const bool kTIsOther = GMOCK_KIND_OF_(RawT) == internal::kOther; 43395b12332c345cee508a8e2b68e007280392506e0zhanyong.wan const bool kUIsOther = GMOCK_KIND_OF_(RawU) == internal::kOther; 43402f7106557fde1f1075dc53d65ef1f7a11851f93zhanyong.wan GTEST_COMPILE_ASSERT_( 43595b12332c345cee508a8e2b68e007280392506e0zhanyong.wan kTIsOther || kUIsOther || 43695b12332c345cee508a8e2b68e007280392506e0zhanyong.wan (internal::LosslessArithmeticConvertible<RawT, RawU>::value), 43795b12332c345cee508a8e2b68e007280392506e0zhanyong.wan conversion_of_arithmetic_types_must_be_lossless); 43895b12332c345cee508a8e2b68e007280392506e0zhanyong.wan return MatcherCast<T>(matcher); 43995b12332c345cee508a8e2b68e007280392506e0zhanyong.wan } 44095b12332c345cee508a8e2b68e007280392506e0zhanyong.wan}; 44195b12332c345cee508a8e2b68e007280392506e0zhanyong.wan 44295b12332c345cee508a8e2b68e007280392506e0zhanyong.wantemplate <typename T, typename M> 44395b12332c345cee508a8e2b68e007280392506e0zhanyong.waninline Matcher<T> SafeMatcherCast(const M& polymorphic_matcher) { 44495b12332c345cee508a8e2b68e007280392506e0zhanyong.wan return SafeMatcherCastImpl<T>::Cast(polymorphic_matcher); 44518490653e80d484b4650d8799184fd1e021efc7bzhanyong.wan} 44618490653e80d484b4650d8799184fd1e021efc7bzhanyong.wan 447e35fdd936d133bf8a48de140a3c666897588a05shiqian// A<T>() returns a matcher that matches any value of type T. 448e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T> 449e35fdd936d133bf8a48de140a3c666897588a05shiqianMatcher<T> A(); 450e35fdd936d133bf8a48de140a3c666897588a05shiqian 451e35fdd936d133bf8a48de140a3c666897588a05shiqian// Anything inside the 'internal' namespace IS INTERNAL IMPLEMENTATION 452e35fdd936d133bf8a48de140a3c666897588a05shiqian// and MUST NOT BE USED IN USER CODE!!! 453e35fdd936d133bf8a48de140a3c666897588a05shiqiannamespace internal { 454e35fdd936d133bf8a48de140a3c666897588a05shiqian 455b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan// If the explanation is not empty, prints it to the ostream. 456b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.waninline void PrintIfNotEmpty(const internal::string& explanation, 457b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan std::ostream* os) { 458b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan if (explanation != "" && os != NULL) { 459b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *os << ", " << explanation; 460676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan } 461676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan} 462676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan 463676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan// Matches the value against the given matcher, prints the value and explains 464676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan// the match result to the listener. Returns the match result. 465676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan// 'listener' must not be NULL. 466676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan// Value cannot be passed by const reference, because some matchers take a 467676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan// non-const argument. 468676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wantemplate <typename Value, typename T> 469676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wanbool MatchPrintAndExplain(Value& value, const Matcher<T>& matcher, 470676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan MatchResultListener* listener) { 471676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan if (!listener->IsInterested()) { 472676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan // If the listener is not interested, we do not need to construct the 473676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan // inner explanation. 474676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan return matcher.Matches(value); 475676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan } 476676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan 477676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan StringMatchResultListener inner_listener; 478676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan const bool match = matcher.MatchAndExplain(value, &inner_listener); 479676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan 480676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan UniversalPrint(value, listener->stream()); 481b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan PrintIfNotEmpty(inner_listener.str(), listener->stream()); 482676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan 483676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan return match; 484676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan} 485676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan 486e35fdd936d133bf8a48de140a3c666897588a05shiqian// An internal helper class for doing compile-time loop on a tuple's 487e35fdd936d133bf8a48de140a3c666897588a05shiqian// fields. 488e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <size_t N> 489e35fdd936d133bf8a48de140a3c666897588a05shiqianclass TuplePrefix { 490e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 491e35fdd936d133bf8a48de140a3c666897588a05shiqian // TuplePrefix<N>::Matches(matcher_tuple, value_tuple) returns true 492e35fdd936d133bf8a48de140a3c666897588a05shiqian // iff the first N fields of matcher_tuple matches the first N 493e35fdd936d133bf8a48de140a3c666897588a05shiqian // fields of value_tuple, respectively. 494e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename MatcherTuple, typename ValueTuple> 495e35fdd936d133bf8a48de140a3c666897588a05shiqian static bool Matches(const MatcherTuple& matcher_tuple, 496e35fdd936d133bf8a48de140a3c666897588a05shiqian const ValueTuple& value_tuple) { 497e35fdd936d133bf8a48de140a3c666897588a05shiqian using ::std::tr1::get; 498e35fdd936d133bf8a48de140a3c666897588a05shiqian return TuplePrefix<N - 1>::Matches(matcher_tuple, value_tuple) 499e35fdd936d133bf8a48de140a3c666897588a05shiqian && get<N - 1>(matcher_tuple).Matches(get<N - 1>(value_tuple)); 500e35fdd936d133bf8a48de140a3c666897588a05shiqian } 501e35fdd936d133bf8a48de140a3c666897588a05shiqian 502b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan // TuplePrefix<N>::ExplainMatchFailuresTo(matchers, values, os) 503e35fdd936d133bf8a48de140a3c666897588a05shiqian // describes failures in matching the first N fields of matchers 504e35fdd936d133bf8a48de140a3c666897588a05shiqian // against the first N fields of values. If there is no failure, 505e35fdd936d133bf8a48de140a3c666897588a05shiqian // nothing will be streamed to os. 506e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename MatcherTuple, typename ValueTuple> 507b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan static void ExplainMatchFailuresTo(const MatcherTuple& matchers, 508b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan const ValueTuple& values, 509b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan ::std::ostream* os) { 510e35fdd936d133bf8a48de140a3c666897588a05shiqian using ::std::tr1::tuple_element; 511e35fdd936d133bf8a48de140a3c666897588a05shiqian using ::std::tr1::get; 512e35fdd936d133bf8a48de140a3c666897588a05shiqian 513e35fdd936d133bf8a48de140a3c666897588a05shiqian // First, describes failures in the first N - 1 fields. 514b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan TuplePrefix<N - 1>::ExplainMatchFailuresTo(matchers, values, os); 515e35fdd936d133bf8a48de140a3c666897588a05shiqian 516e35fdd936d133bf8a48de140a3c666897588a05shiqian // Then describes the failure (if any) in the (N - 1)-th (0-based) 517e35fdd936d133bf8a48de140a3c666897588a05shiqian // field. 518e35fdd936d133bf8a48de140a3c666897588a05shiqian typename tuple_element<N - 1, MatcherTuple>::type matcher = 519e35fdd936d133bf8a48de140a3c666897588a05shiqian get<N - 1>(matchers); 520e35fdd936d133bf8a48de140a3c666897588a05shiqian typedef typename tuple_element<N - 1, ValueTuple>::type Value; 521e35fdd936d133bf8a48de140a3c666897588a05shiqian Value value = get<N - 1>(values); 522821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan StringMatchResultListener listener; 523821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan if (!matcher.MatchAndExplain(value, &listener)) { 524e35fdd936d133bf8a48de140a3c666897588a05shiqian // TODO(wan): include in the message the name of the parameter 525e35fdd936d133bf8a48de140a3c666897588a05shiqian // as used in MOCK_METHOD*() when possible. 526e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << " Expected arg #" << N - 1 << ": "; 527e35fdd936d133bf8a48de140a3c666897588a05shiqian get<N - 1>(matchers).DescribeTo(os); 528e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "\n Actual: "; 529e35fdd936d133bf8a48de140a3c666897588a05shiqian // We remove the reference in type Value to prevent the 530e35fdd936d133bf8a48de140a3c666897588a05shiqian // universal printer from printing the address of value, which 531e35fdd936d133bf8a48de140a3c666897588a05shiqian // isn't interesting to the user most of the time. The 532db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan // matcher's MatchAndExplain() method handles the case when 533e35fdd936d133bf8a48de140a3c666897588a05shiqian // the address is interesting. 534b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan internal::UniversalPrint(value, os); 535b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan PrintIfNotEmpty(listener.str(), os); 536e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "\n"; 537e35fdd936d133bf8a48de140a3c666897588a05shiqian } 538e35fdd936d133bf8a48de140a3c666897588a05shiqian } 539e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 540e35fdd936d133bf8a48de140a3c666897588a05shiqian 541e35fdd936d133bf8a48de140a3c666897588a05shiqian// The base case. 542e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <> 543e35fdd936d133bf8a48de140a3c666897588a05shiqianclass TuplePrefix<0> { 544e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 545e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename MatcherTuple, typename ValueTuple> 5463fbd2dd020819fcfd7cef2aa6a17fad73c41a0eezhanyong.wan static bool Matches(const MatcherTuple& /* matcher_tuple */, 5473fbd2dd020819fcfd7cef2aa6a17fad73c41a0eezhanyong.wan const ValueTuple& /* value_tuple */) { 548e35fdd936d133bf8a48de140a3c666897588a05shiqian return true; 549e35fdd936d133bf8a48de140a3c666897588a05shiqian } 550e35fdd936d133bf8a48de140a3c666897588a05shiqian 551e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename MatcherTuple, typename ValueTuple> 552b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan static void ExplainMatchFailuresTo(const MatcherTuple& /* matchers */, 553b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan const ValueTuple& /* values */, 554b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan ::std::ostream* /* os */) {} 555e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 556e35fdd936d133bf8a48de140a3c666897588a05shiqian 557e35fdd936d133bf8a48de140a3c666897588a05shiqian// TupleMatches(matcher_tuple, value_tuple) returns true iff all 558e35fdd936d133bf8a48de140a3c666897588a05shiqian// matchers in matcher_tuple match the corresponding fields in 559e35fdd936d133bf8a48de140a3c666897588a05shiqian// value_tuple. It is a compiler error if matcher_tuple and 560e35fdd936d133bf8a48de140a3c666897588a05shiqian// value_tuple have different number of fields or incompatible field 561e35fdd936d133bf8a48de140a3c666897588a05shiqian// types. 562e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename MatcherTuple, typename ValueTuple> 563e35fdd936d133bf8a48de140a3c666897588a05shiqianbool TupleMatches(const MatcherTuple& matcher_tuple, 564e35fdd936d133bf8a48de140a3c666897588a05shiqian const ValueTuple& value_tuple) { 565e35fdd936d133bf8a48de140a3c666897588a05shiqian using ::std::tr1::tuple_size; 566e35fdd936d133bf8a48de140a3c666897588a05shiqian // Makes sure that matcher_tuple and value_tuple have the same 567e35fdd936d133bf8a48de140a3c666897588a05shiqian // number of fields. 56802f7106557fde1f1075dc53d65ef1f7a11851f93zhanyong.wan GTEST_COMPILE_ASSERT_(tuple_size<MatcherTuple>::value == 569e0d051ea64dd5f32d5b6af9831747d1acb2a9c40zhanyong.wan tuple_size<ValueTuple>::value, 570e0d051ea64dd5f32d5b6af9831747d1acb2a9c40zhanyong.wan matcher_and_value_have_different_numbers_of_fields); 571e35fdd936d133bf8a48de140a3c666897588a05shiqian return TuplePrefix<tuple_size<ValueTuple>::value>:: 572e35fdd936d133bf8a48de140a3c666897588a05shiqian Matches(matcher_tuple, value_tuple); 573e35fdd936d133bf8a48de140a3c666897588a05shiqian} 574e35fdd936d133bf8a48de140a3c666897588a05shiqian 575e35fdd936d133bf8a48de140a3c666897588a05shiqian// Describes failures in matching matchers against values. If there 576e35fdd936d133bf8a48de140a3c666897588a05shiqian// is no failure, nothing will be streamed to os. 577e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename MatcherTuple, typename ValueTuple> 578b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wanvoid ExplainMatchFailureTupleTo(const MatcherTuple& matchers, 579b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan const ValueTuple& values, 580b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan ::std::ostream* os) { 581e35fdd936d133bf8a48de140a3c666897588a05shiqian using ::std::tr1::tuple_size; 582b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan TuplePrefix<tuple_size<MatcherTuple>::value>::ExplainMatchFailuresTo( 583e35fdd936d133bf8a48de140a3c666897588a05shiqian matchers, values, os); 584e35fdd936d133bf8a48de140a3c666897588a05shiqian} 585e35fdd936d133bf8a48de140a3c666897588a05shiqian 586e35fdd936d133bf8a48de140a3c666897588a05shiqian// The MatcherCastImpl class template is a helper for implementing 587e35fdd936d133bf8a48de140a3c666897588a05shiqian// MatcherCast(). We need this helper in order to partially 588e35fdd936d133bf8a48de140a3c666897588a05shiqian// specialize the implementation of MatcherCast() (C++ allows 589e35fdd936d133bf8a48de140a3c666897588a05shiqian// class/struct templates to be partially specialized, but not 590e35fdd936d133bf8a48de140a3c666897588a05shiqian// function templates.). 591e35fdd936d133bf8a48de140a3c666897588a05shiqian 592e35fdd936d133bf8a48de140a3c666897588a05shiqian// This general version is used when MatcherCast()'s argument is a 593e35fdd936d133bf8a48de140a3c666897588a05shiqian// polymorphic matcher (i.e. something that can be converted to a 594e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matcher but is not one yet; for example, Eq(value)). 595e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T, typename M> 596e35fdd936d133bf8a48de140a3c666897588a05shiqianclass MatcherCastImpl { 597e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 598e35fdd936d133bf8a48de140a3c666897588a05shiqian static Matcher<T> Cast(M polymorphic_matcher) { 599e35fdd936d133bf8a48de140a3c666897588a05shiqian return Matcher<T>(polymorphic_matcher); 600e35fdd936d133bf8a48de140a3c666897588a05shiqian } 601e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 602e35fdd936d133bf8a48de140a3c666897588a05shiqian 603e35fdd936d133bf8a48de140a3c666897588a05shiqian// This more specialized version is used when MatcherCast()'s argument 604e35fdd936d133bf8a48de140a3c666897588a05shiqian// is already a Matcher. This only compiles when type T can be 605e35fdd936d133bf8a48de140a3c666897588a05shiqian// statically converted to type U. 606e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T, typename U> 607e35fdd936d133bf8a48de140a3c666897588a05shiqianclass MatcherCastImpl<T, Matcher<U> > { 608e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 609e35fdd936d133bf8a48de140a3c666897588a05shiqian static Matcher<T> Cast(const Matcher<U>& source_matcher) { 610e35fdd936d133bf8a48de140a3c666897588a05shiqian return Matcher<T>(new Impl(source_matcher)); 611e35fdd936d133bf8a48de140a3c666897588a05shiqian } 61232de5f53763125925e078498250f7e73a88de9edzhanyong.wan 613e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 614e35fdd936d133bf8a48de140a3c666897588a05shiqian class Impl : public MatcherInterface<T> { 615e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 616e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit Impl(const Matcher<U>& source_matcher) 617e35fdd936d133bf8a48de140a3c666897588a05shiqian : source_matcher_(source_matcher) {} 618e35fdd936d133bf8a48de140a3c666897588a05shiqian 619e35fdd936d133bf8a48de140a3c666897588a05shiqian // We delegate the matching logic to the source matcher. 620821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan virtual bool MatchAndExplain(T x, MatchResultListener* listener) const { 621821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan return source_matcher_.MatchAndExplain(static_cast<U>(x), listener); 622e35fdd936d133bf8a48de140a3c666897588a05shiqian } 623e35fdd936d133bf8a48de140a3c666897588a05shiqian 624e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeTo(::std::ostream* os) const { 625e35fdd936d133bf8a48de140a3c666897588a05shiqian source_matcher_.DescribeTo(os); 626e35fdd936d133bf8a48de140a3c666897588a05shiqian } 627e35fdd936d133bf8a48de140a3c666897588a05shiqian 628e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeNegationTo(::std::ostream* os) const { 629e35fdd936d133bf8a48de140a3c666897588a05shiqian source_matcher_.DescribeNegationTo(os); 630e35fdd936d133bf8a48de140a3c666897588a05shiqian } 631e35fdd936d133bf8a48de140a3c666897588a05shiqian 632e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 633e35fdd936d133bf8a48de140a3c666897588a05shiqian const Matcher<U> source_matcher_; 63432de5f53763125925e078498250f7e73a88de9edzhanyong.wan 63532de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(Impl); 636e35fdd936d133bf8a48de140a3c666897588a05shiqian }; 637e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 638e35fdd936d133bf8a48de140a3c666897588a05shiqian 639e35fdd936d133bf8a48de140a3c666897588a05shiqian// This even more specialized version is used for efficiently casting 640e35fdd936d133bf8a48de140a3c666897588a05shiqian// a matcher to its own type. 641e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T> 642e35fdd936d133bf8a48de140a3c666897588a05shiqianclass MatcherCastImpl<T, Matcher<T> > { 643e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 644e35fdd936d133bf8a48de140a3c666897588a05shiqian static Matcher<T> Cast(const Matcher<T>& matcher) { return matcher; } 645e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 646e35fdd936d133bf8a48de140a3c666897588a05shiqian 647e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements A<T>(). 648e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T> 649e35fdd936d133bf8a48de140a3c666897588a05shiqianclass AnyMatcherImpl : public MatcherInterface<T> { 650e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 651821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan virtual bool MatchAndExplain( 652821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan T /* x */, MatchResultListener* /* listener */) const { return true; } 653e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeTo(::std::ostream* os) const { *os << "is anything"; } 654e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeNegationTo(::std::ostream* os) const { 655e35fdd936d133bf8a48de140a3c666897588a05shiqian // This is mostly for completeness' safe, as it's not very useful 656e35fdd936d133bf8a48de140a3c666897588a05shiqian // to write Not(A<bool>()). However we cannot completely rule out 657e35fdd936d133bf8a48de140a3c666897588a05shiqian // such a possibility, and it doesn't hurt to be prepared. 658e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "never matches"; 659e35fdd936d133bf8a48de140a3c666897588a05shiqian } 660e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 661e35fdd936d133bf8a48de140a3c666897588a05shiqian 662e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements _, a matcher that matches any value of any 663e35fdd936d133bf8a48de140a3c666897588a05shiqian// type. This is a polymorphic matcher, so we need a template type 664e35fdd936d133bf8a48de140a3c666897588a05shiqian// conversion operator to make it appearing as a Matcher<T> for any 665e35fdd936d133bf8a48de140a3c666897588a05shiqian// type T. 666e35fdd936d133bf8a48de140a3c666897588a05shiqianclass AnythingMatcher { 667e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 668e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename T> 669e35fdd936d133bf8a48de140a3c666897588a05shiqian operator Matcher<T>() const { return A<T>(); } 670e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 671e35fdd936d133bf8a48de140a3c666897588a05shiqian 672e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements a matcher that compares a given value with a 673e35fdd936d133bf8a48de140a3c666897588a05shiqian// pre-supplied value using one of the ==, <=, <, etc, operators. The 674e35fdd936d133bf8a48de140a3c666897588a05shiqian// two values being compared don't have to have the same type. 675e35fdd936d133bf8a48de140a3c666897588a05shiqian// 676e35fdd936d133bf8a48de140a3c666897588a05shiqian// The matcher defined here is polymorphic (for example, Eq(5) can be 677e35fdd936d133bf8a48de140a3c666897588a05shiqian// used to match an int, a short, a double, etc). Therefore we use 678e35fdd936d133bf8a48de140a3c666897588a05shiqian// a template type conversion operator in the implementation. 679e35fdd936d133bf8a48de140a3c666897588a05shiqian// 680e35fdd936d133bf8a48de140a3c666897588a05shiqian// We define this as a macro in order to eliminate duplicated source 681e35fdd936d133bf8a48de140a3c666897588a05shiqian// code. 682e35fdd936d133bf8a48de140a3c666897588a05shiqian// 683e35fdd936d133bf8a48de140a3c666897588a05shiqian// The following template definition assumes that the Rhs parameter is 684e35fdd936d133bf8a48de140a3c666897588a05shiqian// a "bare" type (i.e. neither 'const T' nor 'T&'). 685b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan#define GMOCK_IMPLEMENT_COMPARISON_MATCHER_( \ 686b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan name, op, relation, negated_relation) \ 687e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename Rhs> class name##Matcher { \ 688e35fdd936d133bf8a48de140a3c666897588a05shiqian public: \ 689e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit name##Matcher(const Rhs& rhs) : rhs_(rhs) {} \ 690e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename Lhs> \ 691e35fdd936d133bf8a48de140a3c666897588a05shiqian operator Matcher<Lhs>() const { \ 692e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakeMatcher(new Impl<Lhs>(rhs_)); \ 693e35fdd936d133bf8a48de140a3c666897588a05shiqian } \ 694e35fdd936d133bf8a48de140a3c666897588a05shiqian private: \ 695e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename Lhs> \ 696e35fdd936d133bf8a48de140a3c666897588a05shiqian class Impl : public MatcherInterface<Lhs> { \ 697e35fdd936d133bf8a48de140a3c666897588a05shiqian public: \ 698e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit Impl(const Rhs& rhs) : rhs_(rhs) {} \ 699821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan virtual bool MatchAndExplain(\ 700821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan Lhs lhs, MatchResultListener* /* listener */) const { \ 701821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan return lhs op rhs_; \ 702821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan } \ 703e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeTo(::std::ostream* os) const { \ 704b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *os << relation " "; \ 705e35fdd936d133bf8a48de140a3c666897588a05shiqian UniversalPrinter<Rhs>::Print(rhs_, os); \ 706e35fdd936d133bf8a48de140a3c666897588a05shiqian } \ 707e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeNegationTo(::std::ostream* os) const { \ 708b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *os << negated_relation " "; \ 709e35fdd936d133bf8a48de140a3c666897588a05shiqian UniversalPrinter<Rhs>::Print(rhs_, os); \ 710e35fdd936d133bf8a48de140a3c666897588a05shiqian } \ 711e35fdd936d133bf8a48de140a3c666897588a05shiqian private: \ 712e35fdd936d133bf8a48de140a3c666897588a05shiqian Rhs rhs_; \ 71332de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(Impl); \ 714e35fdd936d133bf8a48de140a3c666897588a05shiqian }; \ 715e35fdd936d133bf8a48de140a3c666897588a05shiqian Rhs rhs_; \ 71632de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(name##Matcher); \ 717e35fdd936d133bf8a48de140a3c666897588a05shiqian } 718e35fdd936d133bf8a48de140a3c666897588a05shiqian 719e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements Eq(v), Ge(v), Gt(v), Le(v), Lt(v), and Ne(v) 720e35fdd936d133bf8a48de140a3c666897588a05shiqian// respectively. 721b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wanGMOCK_IMPLEMENT_COMPARISON_MATCHER_(Eq, ==, "is equal to", "isn't equal to"); 722b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wanGMOCK_IMPLEMENT_COMPARISON_MATCHER_(Ge, >=, "is >=", "isn't >="); 723b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wanGMOCK_IMPLEMENT_COMPARISON_MATCHER_(Gt, >, "is >", "isn't >"); 724b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wanGMOCK_IMPLEMENT_COMPARISON_MATCHER_(Le, <=, "is <=", "isn't <="); 725b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wanGMOCK_IMPLEMENT_COMPARISON_MATCHER_(Lt, <, "is <", "isn't <"); 726b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wanGMOCK_IMPLEMENT_COMPARISON_MATCHER_(Ne, !=, "isn't equal to", "is equal to"); 727e35fdd936d133bf8a48de140a3c666897588a05shiqian 728e0d051ea64dd5f32d5b6af9831747d1acb2a9c40zhanyong.wan#undef GMOCK_IMPLEMENT_COMPARISON_MATCHER_ 729e35fdd936d133bf8a48de140a3c666897588a05shiqian 73079b83505bcf73bf2903ebf2e2f82cb1e1f181816vladlosev// Implements the polymorphic IsNull() matcher, which matches any raw or smart 7312d970ee3bad530703ff24bc3a011390b45cdd293zhanyong.wan// pointer that is NULL. 7322d970ee3bad530703ff24bc3a011390b45cdd293zhanyong.wanclass IsNullMatcher { 7332d970ee3bad530703ff24bc3a011390b45cdd293zhanyong.wan public: 73479b83505bcf73bf2903ebf2e2f82cb1e1f181816vladlosev template <typename Pointer> 735db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan bool MatchAndExplain(const Pointer& p, 736db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan MatchResultListener* /* listener */) const { 737db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan return GetRawPointer(p) == NULL; 738db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan } 7392d970ee3bad530703ff24bc3a011390b45cdd293zhanyong.wan 7402d970ee3bad530703ff24bc3a011390b45cdd293zhanyong.wan void DescribeTo(::std::ostream* os) const { *os << "is NULL"; } 7412d970ee3bad530703ff24bc3a011390b45cdd293zhanyong.wan void DescribeNegationTo(::std::ostream* os) const { 742b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *os << "isn't NULL"; 7432d970ee3bad530703ff24bc3a011390b45cdd293zhanyong.wan } 7442d970ee3bad530703ff24bc3a011390b45cdd293zhanyong.wan}; 7452d970ee3bad530703ff24bc3a011390b45cdd293zhanyong.wan 74679b83505bcf73bf2903ebf2e2f82cb1e1f181816vladlosev// Implements the polymorphic NotNull() matcher, which matches any raw or smart 747e35fdd936d133bf8a48de140a3c666897588a05shiqian// pointer that is not NULL. 748e35fdd936d133bf8a48de140a3c666897588a05shiqianclass NotNullMatcher { 749e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 75079b83505bcf73bf2903ebf2e2f82cb1e1f181816vladlosev template <typename Pointer> 751db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan bool MatchAndExplain(const Pointer& p, 752db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan MatchResultListener* /* listener */) const { 753db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan return GetRawPointer(p) != NULL; 754db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan } 755e35fdd936d133bf8a48de140a3c666897588a05shiqian 756b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan void DescribeTo(::std::ostream* os) const { *os << "isn't NULL"; } 757e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeNegationTo(::std::ostream* os) const { 758e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "is NULL"; 759e35fdd936d133bf8a48de140a3c666897588a05shiqian } 760e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 761e35fdd936d133bf8a48de140a3c666897588a05shiqian 762e35fdd936d133bf8a48de140a3c666897588a05shiqian// Ref(variable) matches any argument that is a reference to 763e35fdd936d133bf8a48de140a3c666897588a05shiqian// 'variable'. This matcher is polymorphic as it can match any 764e35fdd936d133bf8a48de140a3c666897588a05shiqian// super type of the type of 'variable'. 765e35fdd936d133bf8a48de140a3c666897588a05shiqian// 766e35fdd936d133bf8a48de140a3c666897588a05shiqian// The RefMatcher template class implements Ref(variable). It can 767e35fdd936d133bf8a48de140a3c666897588a05shiqian// only be instantiated with a reference type. This prevents a user 768e35fdd936d133bf8a48de140a3c666897588a05shiqian// from mistakenly using Ref(x) to match a non-reference function 769e35fdd936d133bf8a48de140a3c666897588a05shiqian// argument. For example, the following will righteously cause a 770e35fdd936d133bf8a48de140a3c666897588a05shiqian// compiler error: 771e35fdd936d133bf8a48de140a3c666897588a05shiqian// 772e35fdd936d133bf8a48de140a3c666897588a05shiqian// int n; 773e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matcher<int> m1 = Ref(n); // This won't compile. 774e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matcher<int&> m2 = Ref(n); // This will compile. 775e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T> 776e35fdd936d133bf8a48de140a3c666897588a05shiqianclass RefMatcher; 777e35fdd936d133bf8a48de140a3c666897588a05shiqian 778e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T> 779e35fdd936d133bf8a48de140a3c666897588a05shiqianclass RefMatcher<T&> { 780e35fdd936d133bf8a48de140a3c666897588a05shiqian // Google Mock is a generic framework and thus needs to support 781e35fdd936d133bf8a48de140a3c666897588a05shiqian // mocking any function types, including those that take non-const 782e35fdd936d133bf8a48de140a3c666897588a05shiqian // reference arguments. Therefore the template parameter T (and 783e35fdd936d133bf8a48de140a3c666897588a05shiqian // Super below) can be instantiated to either a const type or a 784e35fdd936d133bf8a48de140a3c666897588a05shiqian // non-const type. 785e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 786e35fdd936d133bf8a48de140a3c666897588a05shiqian // RefMatcher() takes a T& instead of const T&, as we want the 787e35fdd936d133bf8a48de140a3c666897588a05shiqian // compiler to catch using Ref(const_value) as a matcher for a 788e35fdd936d133bf8a48de140a3c666897588a05shiqian // non-const reference. 789e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit RefMatcher(T& x) : object_(x) {} // NOLINT 790e35fdd936d133bf8a48de140a3c666897588a05shiqian 791e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename Super> 792e35fdd936d133bf8a48de140a3c666897588a05shiqian operator Matcher<Super&>() const { 793e35fdd936d133bf8a48de140a3c666897588a05shiqian // By passing object_ (type T&) to Impl(), which expects a Super&, 794e35fdd936d133bf8a48de140a3c666897588a05shiqian // we make sure that Super is a super type of T. In particular, 795e35fdd936d133bf8a48de140a3c666897588a05shiqian // this catches using Ref(const_value) as a matcher for a 796e35fdd936d133bf8a48de140a3c666897588a05shiqian // non-const reference, as you cannot implicitly convert a const 797e35fdd936d133bf8a48de140a3c666897588a05shiqian // reference to a non-const reference. 798e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakeMatcher(new Impl<Super>(object_)); 799e35fdd936d133bf8a48de140a3c666897588a05shiqian } 80032de5f53763125925e078498250f7e73a88de9edzhanyong.wan 801e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 802e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename Super> 803e35fdd936d133bf8a48de140a3c666897588a05shiqian class Impl : public MatcherInterface<Super&> { 804e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 805e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit Impl(Super& x) : object_(x) {} // NOLINT 806e35fdd936d133bf8a48de140a3c666897588a05shiqian 807db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan // MatchAndExplain() takes a Super& (as opposed to const Super&) 808db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan // in order to match the interface MatcherInterface<Super&>. 809821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan virtual bool MatchAndExplain( 810821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan Super& x, MatchResultListener* listener) const { 811b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *listener << "which is located @" << static_cast<const void*>(&x); 812821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan return &x == &object_; 813821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan } 814e35fdd936d133bf8a48de140a3c666897588a05shiqian 815e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeTo(::std::ostream* os) const { 816e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "references the variable "; 817e35fdd936d133bf8a48de140a3c666897588a05shiqian UniversalPrinter<Super&>::Print(object_, os); 818e35fdd936d133bf8a48de140a3c666897588a05shiqian } 819e35fdd936d133bf8a48de140a3c666897588a05shiqian 820e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeNegationTo(::std::ostream* os) const { 821e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "does not reference the variable "; 822e35fdd936d133bf8a48de140a3c666897588a05shiqian UniversalPrinter<Super&>::Print(object_, os); 823e35fdd936d133bf8a48de140a3c666897588a05shiqian } 824e35fdd936d133bf8a48de140a3c666897588a05shiqian 825e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 826e35fdd936d133bf8a48de140a3c666897588a05shiqian const Super& object_; 82732de5f53763125925e078498250f7e73a88de9edzhanyong.wan 82832de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(Impl); 829e35fdd936d133bf8a48de140a3c666897588a05shiqian }; 830e35fdd936d133bf8a48de140a3c666897588a05shiqian 831e35fdd936d133bf8a48de140a3c666897588a05shiqian T& object_; 83232de5f53763125925e078498250f7e73a88de9edzhanyong.wan 83332de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(RefMatcher); 834e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 835e35fdd936d133bf8a48de140a3c666897588a05shiqian 836e35fdd936d133bf8a48de140a3c666897588a05shiqian// Polymorphic helper functions for narrow and wide string matchers. 837e35fdd936d133bf8a48de140a3c666897588a05shiqianinline bool CaseInsensitiveCStringEquals(const char* lhs, const char* rhs) { 838e35fdd936d133bf8a48de140a3c666897588a05shiqian return String::CaseInsensitiveCStringEquals(lhs, rhs); 839e35fdd936d133bf8a48de140a3c666897588a05shiqian} 840e35fdd936d133bf8a48de140a3c666897588a05shiqian 841e35fdd936d133bf8a48de140a3c666897588a05shiqianinline bool CaseInsensitiveCStringEquals(const wchar_t* lhs, 842e35fdd936d133bf8a48de140a3c666897588a05shiqian const wchar_t* rhs) { 843e35fdd936d133bf8a48de140a3c666897588a05shiqian return String::CaseInsensitiveWideCStringEquals(lhs, rhs); 844e35fdd936d133bf8a48de140a3c666897588a05shiqian} 845e35fdd936d133bf8a48de140a3c666897588a05shiqian 846e35fdd936d133bf8a48de140a3c666897588a05shiqian// String comparison for narrow or wide strings that can have embedded NUL 847e35fdd936d133bf8a48de140a3c666897588a05shiqian// characters. 848e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename StringType> 849e35fdd936d133bf8a48de140a3c666897588a05shiqianbool CaseInsensitiveStringEquals(const StringType& s1, 850e35fdd936d133bf8a48de140a3c666897588a05shiqian const StringType& s2) { 851e35fdd936d133bf8a48de140a3c666897588a05shiqian // Are the heads equal? 852e35fdd936d133bf8a48de140a3c666897588a05shiqian if (!CaseInsensitiveCStringEquals(s1.c_str(), s2.c_str())) { 853e35fdd936d133bf8a48de140a3c666897588a05shiqian return false; 854e35fdd936d133bf8a48de140a3c666897588a05shiqian } 855e35fdd936d133bf8a48de140a3c666897588a05shiqian 856e35fdd936d133bf8a48de140a3c666897588a05shiqian // Skip the equal heads. 857e35fdd936d133bf8a48de140a3c666897588a05shiqian const typename StringType::value_type nul = 0; 858e35fdd936d133bf8a48de140a3c666897588a05shiqian const size_t i1 = s1.find(nul), i2 = s2.find(nul); 859e35fdd936d133bf8a48de140a3c666897588a05shiqian 860e35fdd936d133bf8a48de140a3c666897588a05shiqian // Are we at the end of either s1 or s2? 861e35fdd936d133bf8a48de140a3c666897588a05shiqian if (i1 == StringType::npos || i2 == StringType::npos) { 862e35fdd936d133bf8a48de140a3c666897588a05shiqian return i1 == i2; 863e35fdd936d133bf8a48de140a3c666897588a05shiqian } 864e35fdd936d133bf8a48de140a3c666897588a05shiqian 865e35fdd936d133bf8a48de140a3c666897588a05shiqian // Are the tails equal? 866e35fdd936d133bf8a48de140a3c666897588a05shiqian return CaseInsensitiveStringEquals(s1.substr(i1 + 1), s2.substr(i2 + 1)); 867e35fdd936d133bf8a48de140a3c666897588a05shiqian} 868e35fdd936d133bf8a48de140a3c666897588a05shiqian 869e35fdd936d133bf8a48de140a3c666897588a05shiqian// String matchers. 870e35fdd936d133bf8a48de140a3c666897588a05shiqian 871e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements equality-based string matchers like StrEq, StrCaseNe, and etc. 872e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename StringType> 873e35fdd936d133bf8a48de140a3c666897588a05shiqianclass StrEqualityMatcher { 874e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 875e35fdd936d133bf8a48de140a3c666897588a05shiqian typedef typename StringType::const_pointer ConstCharPointer; 876e35fdd936d133bf8a48de140a3c666897588a05shiqian 877e35fdd936d133bf8a48de140a3c666897588a05shiqian StrEqualityMatcher(const StringType& str, bool expect_eq, 878e35fdd936d133bf8a48de140a3c666897588a05shiqian bool case_sensitive) 879e35fdd936d133bf8a48de140a3c666897588a05shiqian : string_(str), expect_eq_(expect_eq), case_sensitive_(case_sensitive) {} 880e35fdd936d133bf8a48de140a3c666897588a05shiqian 881e35fdd936d133bf8a48de140a3c666897588a05shiqian // When expect_eq_ is true, returns true iff s is equal to string_; 882e35fdd936d133bf8a48de140a3c666897588a05shiqian // otherwise returns true iff s is not equal to string_. 883db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan bool MatchAndExplain(ConstCharPointer s, 884db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan MatchResultListener* listener) const { 885e35fdd936d133bf8a48de140a3c666897588a05shiqian if (s == NULL) { 886e35fdd936d133bf8a48de140a3c666897588a05shiqian return !expect_eq_; 887e35fdd936d133bf8a48de140a3c666897588a05shiqian } 888db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan return MatchAndExplain(StringType(s), listener); 889e35fdd936d133bf8a48de140a3c666897588a05shiqian } 890e35fdd936d133bf8a48de140a3c666897588a05shiqian 891db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan bool MatchAndExplain(const StringType& s, 892db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan MatchResultListener* /* listener */) const { 893e35fdd936d133bf8a48de140a3c666897588a05shiqian const bool eq = case_sensitive_ ? s == string_ : 894e35fdd936d133bf8a48de140a3c666897588a05shiqian CaseInsensitiveStringEquals(s, string_); 895e35fdd936d133bf8a48de140a3c666897588a05shiqian return expect_eq_ == eq; 896e35fdd936d133bf8a48de140a3c666897588a05shiqian } 897e35fdd936d133bf8a48de140a3c666897588a05shiqian 898e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeTo(::std::ostream* os) const { 899e35fdd936d133bf8a48de140a3c666897588a05shiqian DescribeToHelper(expect_eq_, os); 900e35fdd936d133bf8a48de140a3c666897588a05shiqian } 901e35fdd936d133bf8a48de140a3c666897588a05shiqian 902e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeNegationTo(::std::ostream* os) const { 903e35fdd936d133bf8a48de140a3c666897588a05shiqian DescribeToHelper(!expect_eq_, os); 904e35fdd936d133bf8a48de140a3c666897588a05shiqian } 90532de5f53763125925e078498250f7e73a88de9edzhanyong.wan 906e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 907e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeToHelper(bool expect_eq, ::std::ostream* os) const { 908b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *os << (expect_eq ? "is " : "isn't "); 909e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "equal to "; 910e35fdd936d133bf8a48de140a3c666897588a05shiqian if (!case_sensitive_) { 911e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "(ignoring case) "; 912e35fdd936d133bf8a48de140a3c666897588a05shiqian } 913e35fdd936d133bf8a48de140a3c666897588a05shiqian UniversalPrinter<StringType>::Print(string_, os); 914e35fdd936d133bf8a48de140a3c666897588a05shiqian } 915e35fdd936d133bf8a48de140a3c666897588a05shiqian 916e35fdd936d133bf8a48de140a3c666897588a05shiqian const StringType string_; 917e35fdd936d133bf8a48de140a3c666897588a05shiqian const bool expect_eq_; 918e35fdd936d133bf8a48de140a3c666897588a05shiqian const bool case_sensitive_; 91932de5f53763125925e078498250f7e73a88de9edzhanyong.wan 92032de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(StrEqualityMatcher); 921e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 922e35fdd936d133bf8a48de140a3c666897588a05shiqian 923e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements the polymorphic HasSubstr(substring) matcher, which 924e35fdd936d133bf8a48de140a3c666897588a05shiqian// can be used as a Matcher<T> as long as T can be converted to a 925e35fdd936d133bf8a48de140a3c666897588a05shiqian// string. 926e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename StringType> 927e35fdd936d133bf8a48de140a3c666897588a05shiqianclass HasSubstrMatcher { 928e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 929e35fdd936d133bf8a48de140a3c666897588a05shiqian typedef typename StringType::const_pointer ConstCharPointer; 930e35fdd936d133bf8a48de140a3c666897588a05shiqian 931e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit HasSubstrMatcher(const StringType& substring) 932e35fdd936d133bf8a48de140a3c666897588a05shiqian : substring_(substring) {} 933e35fdd936d133bf8a48de140a3c666897588a05shiqian 934e35fdd936d133bf8a48de140a3c666897588a05shiqian // These overloaded methods allow HasSubstr(substring) to be used as a 935e35fdd936d133bf8a48de140a3c666897588a05shiqian // Matcher<T> as long as T can be converted to string. Returns true 936e35fdd936d133bf8a48de140a3c666897588a05shiqian // iff s contains substring_ as a substring. 937db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan bool MatchAndExplain(ConstCharPointer s, 938db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan MatchResultListener* listener) const { 939db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan return s != NULL && MatchAndExplain(StringType(s), listener); 940e35fdd936d133bf8a48de140a3c666897588a05shiqian } 941e35fdd936d133bf8a48de140a3c666897588a05shiqian 942db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan bool MatchAndExplain(const StringType& s, 943db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan MatchResultListener* /* listener */) const { 944e35fdd936d133bf8a48de140a3c666897588a05shiqian return s.find(substring_) != StringType::npos; 945e35fdd936d133bf8a48de140a3c666897588a05shiqian } 946e35fdd936d133bf8a48de140a3c666897588a05shiqian 947e35fdd936d133bf8a48de140a3c666897588a05shiqian // Describes what this matcher matches. 948e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeTo(::std::ostream* os) const { 949e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "has substring "; 950e35fdd936d133bf8a48de140a3c666897588a05shiqian UniversalPrinter<StringType>::Print(substring_, os); 951e35fdd936d133bf8a48de140a3c666897588a05shiqian } 952e35fdd936d133bf8a48de140a3c666897588a05shiqian 953e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeNegationTo(::std::ostream* os) const { 954e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "has no substring "; 955e35fdd936d133bf8a48de140a3c666897588a05shiqian UniversalPrinter<StringType>::Print(substring_, os); 956e35fdd936d133bf8a48de140a3c666897588a05shiqian } 95732de5f53763125925e078498250f7e73a88de9edzhanyong.wan 958e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 959e35fdd936d133bf8a48de140a3c666897588a05shiqian const StringType substring_; 96032de5f53763125925e078498250f7e73a88de9edzhanyong.wan 96132de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(HasSubstrMatcher); 962e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 963e35fdd936d133bf8a48de140a3c666897588a05shiqian 964e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements the polymorphic StartsWith(substring) matcher, which 965e35fdd936d133bf8a48de140a3c666897588a05shiqian// can be used as a Matcher<T> as long as T can be converted to a 966e35fdd936d133bf8a48de140a3c666897588a05shiqian// string. 967e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename StringType> 968e35fdd936d133bf8a48de140a3c666897588a05shiqianclass StartsWithMatcher { 969e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 970e35fdd936d133bf8a48de140a3c666897588a05shiqian typedef typename StringType::const_pointer ConstCharPointer; 971e35fdd936d133bf8a48de140a3c666897588a05shiqian 972e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit StartsWithMatcher(const StringType& prefix) : prefix_(prefix) { 973e35fdd936d133bf8a48de140a3c666897588a05shiqian } 974e35fdd936d133bf8a48de140a3c666897588a05shiqian 975e35fdd936d133bf8a48de140a3c666897588a05shiqian // These overloaded methods allow StartsWith(prefix) to be used as a 976e35fdd936d133bf8a48de140a3c666897588a05shiqian // Matcher<T> as long as T can be converted to string. Returns true 977e35fdd936d133bf8a48de140a3c666897588a05shiqian // iff s starts with prefix_. 978db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan bool MatchAndExplain(ConstCharPointer s, 979db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan MatchResultListener* listener) const { 980db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan return s != NULL && MatchAndExplain(StringType(s), listener); 981e35fdd936d133bf8a48de140a3c666897588a05shiqian } 982e35fdd936d133bf8a48de140a3c666897588a05shiqian 983db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan bool MatchAndExplain(const StringType& s, 984db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan MatchResultListener* /* listener */) const { 985e35fdd936d133bf8a48de140a3c666897588a05shiqian return s.length() >= prefix_.length() && 986e35fdd936d133bf8a48de140a3c666897588a05shiqian s.substr(0, prefix_.length()) == prefix_; 987e35fdd936d133bf8a48de140a3c666897588a05shiqian } 988e35fdd936d133bf8a48de140a3c666897588a05shiqian 989e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeTo(::std::ostream* os) const { 990e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "starts with "; 991e35fdd936d133bf8a48de140a3c666897588a05shiqian UniversalPrinter<StringType>::Print(prefix_, os); 992e35fdd936d133bf8a48de140a3c666897588a05shiqian } 993e35fdd936d133bf8a48de140a3c666897588a05shiqian 994e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeNegationTo(::std::ostream* os) const { 995e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "doesn't start with "; 996e35fdd936d133bf8a48de140a3c666897588a05shiqian UniversalPrinter<StringType>::Print(prefix_, os); 997e35fdd936d133bf8a48de140a3c666897588a05shiqian } 99832de5f53763125925e078498250f7e73a88de9edzhanyong.wan 999e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 1000e35fdd936d133bf8a48de140a3c666897588a05shiqian const StringType prefix_; 100132de5f53763125925e078498250f7e73a88de9edzhanyong.wan 100232de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(StartsWithMatcher); 1003e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 1004e35fdd936d133bf8a48de140a3c666897588a05shiqian 1005e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements the polymorphic EndsWith(substring) matcher, which 1006e35fdd936d133bf8a48de140a3c666897588a05shiqian// can be used as a Matcher<T> as long as T can be converted to a 1007e35fdd936d133bf8a48de140a3c666897588a05shiqian// string. 1008e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename StringType> 1009e35fdd936d133bf8a48de140a3c666897588a05shiqianclass EndsWithMatcher { 1010e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 1011e35fdd936d133bf8a48de140a3c666897588a05shiqian typedef typename StringType::const_pointer ConstCharPointer; 1012e35fdd936d133bf8a48de140a3c666897588a05shiqian 1013e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit EndsWithMatcher(const StringType& suffix) : suffix_(suffix) {} 1014e35fdd936d133bf8a48de140a3c666897588a05shiqian 1015e35fdd936d133bf8a48de140a3c666897588a05shiqian // These overloaded methods allow EndsWith(suffix) to be used as a 1016e35fdd936d133bf8a48de140a3c666897588a05shiqian // Matcher<T> as long as T can be converted to string. Returns true 1017e35fdd936d133bf8a48de140a3c666897588a05shiqian // iff s ends with suffix_. 1018db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan bool MatchAndExplain(ConstCharPointer s, 1019db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan MatchResultListener* listener) const { 1020db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan return s != NULL && MatchAndExplain(StringType(s), listener); 1021e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1022e35fdd936d133bf8a48de140a3c666897588a05shiqian 1023db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan bool MatchAndExplain(const StringType& s, 1024db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan MatchResultListener* /* listener */) const { 1025e35fdd936d133bf8a48de140a3c666897588a05shiqian return s.length() >= suffix_.length() && 1026e35fdd936d133bf8a48de140a3c666897588a05shiqian s.substr(s.length() - suffix_.length()) == suffix_; 1027e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1028e35fdd936d133bf8a48de140a3c666897588a05shiqian 1029e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeTo(::std::ostream* os) const { 1030e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "ends with "; 1031e35fdd936d133bf8a48de140a3c666897588a05shiqian UniversalPrinter<StringType>::Print(suffix_, os); 1032e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1033e35fdd936d133bf8a48de140a3c666897588a05shiqian 1034e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeNegationTo(::std::ostream* os) const { 1035e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "doesn't end with "; 1036e35fdd936d133bf8a48de140a3c666897588a05shiqian UniversalPrinter<StringType>::Print(suffix_, os); 1037e35fdd936d133bf8a48de140a3c666897588a05shiqian } 103832de5f53763125925e078498250f7e73a88de9edzhanyong.wan 1039e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 1040e35fdd936d133bf8a48de140a3c666897588a05shiqian const StringType suffix_; 104132de5f53763125925e078498250f7e73a88de9edzhanyong.wan 104232de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(EndsWithMatcher); 1043e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 1044e35fdd936d133bf8a48de140a3c666897588a05shiqian 1045e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements polymorphic matchers MatchesRegex(regex) and 1046e35fdd936d133bf8a48de140a3c666897588a05shiqian// ContainsRegex(regex), which can be used as a Matcher<T> as long as 1047e35fdd936d133bf8a48de140a3c666897588a05shiqian// T can be converted to a string. 1048e35fdd936d133bf8a48de140a3c666897588a05shiqianclass MatchesRegexMatcher { 1049e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 1050e35fdd936d133bf8a48de140a3c666897588a05shiqian MatchesRegexMatcher(const RE* regex, bool full_match) 1051e35fdd936d133bf8a48de140a3c666897588a05shiqian : regex_(regex), full_match_(full_match) {} 1052e35fdd936d133bf8a48de140a3c666897588a05shiqian 1053e35fdd936d133bf8a48de140a3c666897588a05shiqian // These overloaded methods allow MatchesRegex(regex) to be used as 1054e35fdd936d133bf8a48de140a3c666897588a05shiqian // a Matcher<T> as long as T can be converted to string. Returns 1055e35fdd936d133bf8a48de140a3c666897588a05shiqian // true iff s matches regular expression regex. When full_match_ is 1056e35fdd936d133bf8a48de140a3c666897588a05shiqian // true, a full match is done; otherwise a partial match is done. 1057db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan bool MatchAndExplain(const char* s, 1058db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan MatchResultListener* listener) const { 1059db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan return s != NULL && MatchAndExplain(internal::string(s), listener); 1060e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1061e35fdd936d133bf8a48de140a3c666897588a05shiqian 1062db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan bool MatchAndExplain(const internal::string& s, 1063db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan MatchResultListener* /* listener */) const { 1064e35fdd936d133bf8a48de140a3c666897588a05shiqian return full_match_ ? RE::FullMatch(s, *regex_) : 1065e35fdd936d133bf8a48de140a3c666897588a05shiqian RE::PartialMatch(s, *regex_); 1066e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1067e35fdd936d133bf8a48de140a3c666897588a05shiqian 1068e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeTo(::std::ostream* os) const { 1069e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << (full_match_ ? "matches" : "contains") 1070e35fdd936d133bf8a48de140a3c666897588a05shiqian << " regular expression "; 1071e35fdd936d133bf8a48de140a3c666897588a05shiqian UniversalPrinter<internal::string>::Print(regex_->pattern(), os); 1072e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1073e35fdd936d133bf8a48de140a3c666897588a05shiqian 1074e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeNegationTo(::std::ostream* os) const { 1075e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "doesn't " << (full_match_ ? "match" : "contain") 1076e35fdd936d133bf8a48de140a3c666897588a05shiqian << " regular expression "; 1077e35fdd936d133bf8a48de140a3c666897588a05shiqian UniversalPrinter<internal::string>::Print(regex_->pattern(), os); 1078e35fdd936d133bf8a48de140a3c666897588a05shiqian } 107932de5f53763125925e078498250f7e73a88de9edzhanyong.wan 1080e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 1081e35fdd936d133bf8a48de140a3c666897588a05shiqian const internal::linked_ptr<const RE> regex_; 1082e35fdd936d133bf8a48de140a3c666897588a05shiqian const bool full_match_; 108332de5f53763125925e078498250f7e73a88de9edzhanyong.wan 108432de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(MatchesRegexMatcher); 1085e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 1086e35fdd936d133bf8a48de140a3c666897588a05shiqian 1087e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements a matcher that compares the two fields of a 2-tuple 1088e35fdd936d133bf8a48de140a3c666897588a05shiqian// using one of the ==, <=, <, etc, operators. The two fields being 1089e35fdd936d133bf8a48de140a3c666897588a05shiqian// compared don't have to have the same type. 1090e35fdd936d133bf8a48de140a3c666897588a05shiqian// 1091e35fdd936d133bf8a48de140a3c666897588a05shiqian// The matcher defined here is polymorphic (for example, Eq() can be 1092e35fdd936d133bf8a48de140a3c666897588a05shiqian// used to match a tuple<int, short>, a tuple<const long&, double>, 1093e35fdd936d133bf8a48de140a3c666897588a05shiqian// etc). Therefore we use a template type conversion operator in the 1094e35fdd936d133bf8a48de140a3c666897588a05shiqian// implementation. 1095e35fdd936d133bf8a48de140a3c666897588a05shiqian// 1096e35fdd936d133bf8a48de140a3c666897588a05shiqian// We define this as a macro in order to eliminate duplicated source 1097e35fdd936d133bf8a48de140a3c666897588a05shiqian// code. 10982661c6821a4d7964697e48747c4d739e1ac3a243zhanyong.wan#define GMOCK_IMPLEMENT_COMPARISON2_MATCHER_(name, op) \ 1099e35fdd936d133bf8a48de140a3c666897588a05shiqian class name##2Matcher { \ 1100e35fdd936d133bf8a48de140a3c666897588a05shiqian public: \ 1101e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename T1, typename T2> \ 1102e35fdd936d133bf8a48de140a3c666897588a05shiqian operator Matcher<const ::std::tr1::tuple<T1, T2>&>() const { \ 1103e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakeMatcher(new Impl<T1, T2>); \ 1104e35fdd936d133bf8a48de140a3c666897588a05shiqian } \ 1105e35fdd936d133bf8a48de140a3c666897588a05shiqian private: \ 1106e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename T1, typename T2> \ 1107e35fdd936d133bf8a48de140a3c666897588a05shiqian class Impl : public MatcherInterface<const ::std::tr1::tuple<T1, T2>&> { \ 1108e35fdd936d133bf8a48de140a3c666897588a05shiqian public: \ 1109821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan virtual bool MatchAndExplain( \ 1110821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan const ::std::tr1::tuple<T1, T2>& args, \ 1111821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan MatchResultListener* /* listener */) const { \ 1112e35fdd936d133bf8a48de140a3c666897588a05shiqian return ::std::tr1::get<0>(args) op ::std::tr1::get<1>(args); \ 1113e35fdd936d133bf8a48de140a3c666897588a05shiqian } \ 1114e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeTo(::std::ostream* os) const { \ 11152661c6821a4d7964697e48747c4d739e1ac3a243zhanyong.wan *os << "are a pair (x, y) where x " #op " y"; \ 1116e35fdd936d133bf8a48de140a3c666897588a05shiqian } \ 1117e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeNegationTo(::std::ostream* os) const { \ 11182661c6821a4d7964697e48747c4d739e1ac3a243zhanyong.wan *os << "are a pair (x, y) where x " #op " y is false"; \ 1119e35fdd936d133bf8a48de140a3c666897588a05shiqian } \ 1120e35fdd936d133bf8a48de140a3c666897588a05shiqian }; \ 1121e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1122e35fdd936d133bf8a48de140a3c666897588a05shiqian 1123e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements Eq(), Ge(), Gt(), Le(), Lt(), and Ne() respectively. 11242661c6821a4d7964697e48747c4d739e1ac3a243zhanyong.wanGMOCK_IMPLEMENT_COMPARISON2_MATCHER_(Eq, ==); 11252661c6821a4d7964697e48747c4d739e1ac3a243zhanyong.wanGMOCK_IMPLEMENT_COMPARISON2_MATCHER_(Ge, >=); 11262661c6821a4d7964697e48747c4d739e1ac3a243zhanyong.wanGMOCK_IMPLEMENT_COMPARISON2_MATCHER_(Gt, >); 11272661c6821a4d7964697e48747c4d739e1ac3a243zhanyong.wanGMOCK_IMPLEMENT_COMPARISON2_MATCHER_(Le, <=); 11282661c6821a4d7964697e48747c4d739e1ac3a243zhanyong.wanGMOCK_IMPLEMENT_COMPARISON2_MATCHER_(Lt, <); 11292661c6821a4d7964697e48747c4d739e1ac3a243zhanyong.wanGMOCK_IMPLEMENT_COMPARISON2_MATCHER_(Ne, !=); 1130e35fdd936d133bf8a48de140a3c666897588a05shiqian 1131e0d051ea64dd5f32d5b6af9831747d1acb2a9c40zhanyong.wan#undef GMOCK_IMPLEMENT_COMPARISON2_MATCHER_ 1132e35fdd936d133bf8a48de140a3c666897588a05shiqian 1133c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan// Implements the Not(...) matcher for a particular argument type T. 1134c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan// We do not nest it inside the NotMatcher class template, as that 1135c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan// will prevent different instantiations of NotMatcher from sharing 1136c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan// the same NotMatcherImpl<T> class. 1137c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wantemplate <typename T> 1138c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wanclass NotMatcherImpl : public MatcherInterface<T> { 1139c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan public: 1140c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan explicit NotMatcherImpl(const Matcher<T>& matcher) 1141c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan : matcher_(matcher) {} 1142c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan 1143821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan virtual bool MatchAndExplain(T x, MatchResultListener* listener) const { 1144821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan return !matcher_.MatchAndExplain(x, listener); 1145c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan } 1146c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan 1147c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan virtual void DescribeTo(::std::ostream* os) const { 1148c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan matcher_.DescribeNegationTo(os); 1149c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan } 1150c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan 1151c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan virtual void DescribeNegationTo(::std::ostream* os) const { 1152c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan matcher_.DescribeTo(os); 1153c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan } 1154c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan 1155c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan private: 1156c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan const Matcher<T> matcher_; 115732de5f53763125925e078498250f7e73a88de9edzhanyong.wan 115832de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(NotMatcherImpl); 1159c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan}; 1160c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan 1161e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements the Not(m) matcher, which matches a value that doesn't 1162e35fdd936d133bf8a48de140a3c666897588a05shiqian// match matcher m. 1163e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename InnerMatcher> 1164e35fdd936d133bf8a48de140a3c666897588a05shiqianclass NotMatcher { 1165e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 1166e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit NotMatcher(InnerMatcher matcher) : matcher_(matcher) {} 1167e35fdd936d133bf8a48de140a3c666897588a05shiqian 1168e35fdd936d133bf8a48de140a3c666897588a05shiqian // This template type conversion operator allows Not(m) to be used 1169e35fdd936d133bf8a48de140a3c666897588a05shiqian // to match any type m can match. 1170e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename T> 1171e35fdd936d133bf8a48de140a3c666897588a05shiqian operator Matcher<T>() const { 1172c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan return Matcher<T>(new NotMatcherImpl<T>(SafeMatcherCast<T>(matcher_))); 1173e35fdd936d133bf8a48de140a3c666897588a05shiqian } 117432de5f53763125925e078498250f7e73a88de9edzhanyong.wan 1175e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 1176c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan InnerMatcher matcher_; 117732de5f53763125925e078498250f7e73a88de9edzhanyong.wan 117832de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(NotMatcher); 1179c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan}; 1180e35fdd936d133bf8a48de140a3c666897588a05shiqian 1181c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan// Implements the AllOf(m1, m2) matcher for a particular argument type 1182c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan// T. We do not nest it inside the BothOfMatcher class template, as 1183c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan// that will prevent different instantiations of BothOfMatcher from 1184c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan// sharing the same BothOfMatcherImpl<T> class. 1185c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wantemplate <typename T> 1186c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wanclass BothOfMatcherImpl : public MatcherInterface<T> { 1187c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan public: 1188c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan BothOfMatcherImpl(const Matcher<T>& matcher1, const Matcher<T>& matcher2) 1189c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan : matcher1_(matcher1), matcher2_(matcher2) {} 1190e35fdd936d133bf8a48de140a3c666897588a05shiqian 1191c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan virtual void DescribeTo(::std::ostream* os) const { 1192c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan *os << "("; 1193c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan matcher1_.DescribeTo(os); 1194c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan *os << ") and ("; 1195c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan matcher2_.DescribeTo(os); 1196c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan *os << ")"; 1197c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan } 1198e35fdd936d133bf8a48de140a3c666897588a05shiqian 1199c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan virtual void DescribeNegationTo(::std::ostream* os) const { 1200b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *os << "("; 1201b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan matcher1_.DescribeNegationTo(os); 1202b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *os << ") or ("; 1203b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan matcher2_.DescribeNegationTo(os); 1204b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *os << ")"; 1205c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan } 1206e35fdd936d133bf8a48de140a3c666897588a05shiqian 1207821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan virtual bool MatchAndExplain(T x, MatchResultListener* listener) const { 1208821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // If either matcher1_ or matcher2_ doesn't match x, we only need 1209821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // to explain why one of them fails. 1210821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan StringMatchResultListener listener1; 1211821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan if (!matcher1_.MatchAndExplain(x, &listener1)) { 1212821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan *listener << listener1.str(); 1213821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan return false; 1214821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan } 1215c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan 1216821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan StringMatchResultListener listener2; 1217821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan if (!matcher2_.MatchAndExplain(x, &listener2)) { 1218821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan *listener << listener2.str(); 1219821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan return false; 1220821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan } 1221c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan 1222821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // Otherwise we need to explain why *both* of them match. 1223821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan const internal::string s1 = listener1.str(); 1224821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan const internal::string s2 = listener2.str(); 1225821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan 1226821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan if (s1 == "") { 1227821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan *listener << s2; 1228c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan } else { 1229821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan *listener << s1; 1230821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan if (s2 != "") { 1231b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *listener << ", and " << s2; 1232c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan } 1233c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan } 1234821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan return true; 1235c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan } 123632de5f53763125925e078498250f7e73a88de9edzhanyong.wan 1237c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan private: 1238c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan const Matcher<T> matcher1_; 1239c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan const Matcher<T> matcher2_; 124032de5f53763125925e078498250f7e73a88de9edzhanyong.wan 124132de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(BothOfMatcherImpl); 1242e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 1243e35fdd936d133bf8a48de140a3c666897588a05shiqian 1244e35fdd936d133bf8a48de140a3c666897588a05shiqian// Used for implementing the AllOf(m_1, ..., m_n) matcher, which 1245e35fdd936d133bf8a48de140a3c666897588a05shiqian// matches a value that matches all of the matchers m_1, ..., and m_n. 1246e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Matcher1, typename Matcher2> 1247e35fdd936d133bf8a48de140a3c666897588a05shiqianclass BothOfMatcher { 1248e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 1249e35fdd936d133bf8a48de140a3c666897588a05shiqian BothOfMatcher(Matcher1 matcher1, Matcher2 matcher2) 1250e35fdd936d133bf8a48de140a3c666897588a05shiqian : matcher1_(matcher1), matcher2_(matcher2) {} 1251e35fdd936d133bf8a48de140a3c666897588a05shiqian 1252e35fdd936d133bf8a48de140a3c666897588a05shiqian // This template type conversion operator allows a 1253e35fdd936d133bf8a48de140a3c666897588a05shiqian // BothOfMatcher<Matcher1, Matcher2> object to match any type that 1254e35fdd936d133bf8a48de140a3c666897588a05shiqian // both Matcher1 and Matcher2 can match. 1255e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename T> 1256e35fdd936d133bf8a48de140a3c666897588a05shiqian operator Matcher<T>() const { 1257c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan return Matcher<T>(new BothOfMatcherImpl<T>(SafeMatcherCast<T>(matcher1_), 1258c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan SafeMatcherCast<T>(matcher2_))); 1259e35fdd936d133bf8a48de140a3c666897588a05shiqian } 126032de5f53763125925e078498250f7e73a88de9edzhanyong.wan 1261e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 1262c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan Matcher1 matcher1_; 1263c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan Matcher2 matcher2_; 126432de5f53763125925e078498250f7e73a88de9edzhanyong.wan 126532de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(BothOfMatcher); 1266c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan}; 1267e35fdd936d133bf8a48de140a3c666897588a05shiqian 1268c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan// Implements the AnyOf(m1, m2) matcher for a particular argument type 1269c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan// T. We do not nest it inside the AnyOfMatcher class template, as 1270c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan// that will prevent different instantiations of AnyOfMatcher from 1271c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan// sharing the same EitherOfMatcherImpl<T> class. 1272c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wantemplate <typename T> 1273c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wanclass EitherOfMatcherImpl : public MatcherInterface<T> { 1274c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan public: 1275c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan EitherOfMatcherImpl(const Matcher<T>& matcher1, const Matcher<T>& matcher2) 1276c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan : matcher1_(matcher1), matcher2_(matcher2) {} 1277e35fdd936d133bf8a48de140a3c666897588a05shiqian 1278c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan virtual void DescribeTo(::std::ostream* os) const { 1279c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan *os << "("; 1280c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan matcher1_.DescribeTo(os); 1281c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan *os << ") or ("; 1282c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan matcher2_.DescribeTo(os); 1283c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan *os << ")"; 1284c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan } 1285e35fdd936d133bf8a48de140a3c666897588a05shiqian 1286c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan virtual void DescribeNegationTo(::std::ostream* os) const { 1287b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *os << "("; 1288b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan matcher1_.DescribeNegationTo(os); 1289b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *os << ") and ("; 1290b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan matcher2_.DescribeNegationTo(os); 1291b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *os << ")"; 1292c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan } 1293c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan 1294821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan virtual bool MatchAndExplain(T x, MatchResultListener* listener) const { 1295821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // If either matcher1_ or matcher2_ matches x, we just need to 1296821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // explain why *one* of them matches. 1297821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan StringMatchResultListener listener1; 1298821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan if (matcher1_.MatchAndExplain(x, &listener1)) { 1299821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan *listener << listener1.str(); 1300821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan return true; 1301821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan } 1302c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan 1303821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan StringMatchResultListener listener2; 1304821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan if (matcher2_.MatchAndExplain(x, &listener2)) { 1305821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan *listener << listener2.str(); 1306821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan return true; 1307821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan } 1308c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan 1309821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // Otherwise we need to explain why *both* of them fail. 1310821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan const internal::string s1 = listener1.str(); 1311821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan const internal::string s2 = listener2.str(); 1312821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan 1313821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan if (s1 == "") { 1314821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan *listener << s2; 1315821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan } else { 1316821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan *listener << s1; 1317821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan if (s2 != "") { 1318b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *listener << ", and " << s2; 1319e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1320e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1321821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan return false; 1322c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan } 132332de5f53763125925e078498250f7e73a88de9edzhanyong.wan 1324c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan private: 1325c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan const Matcher<T> matcher1_; 1326c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan const Matcher<T> matcher2_; 132732de5f53763125925e078498250f7e73a88de9edzhanyong.wan 132832de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(EitherOfMatcherImpl); 1329e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 1330e35fdd936d133bf8a48de140a3c666897588a05shiqian 1331e35fdd936d133bf8a48de140a3c666897588a05shiqian// Used for implementing the AnyOf(m_1, ..., m_n) matcher, which 1332e35fdd936d133bf8a48de140a3c666897588a05shiqian// matches a value that matches at least one of the matchers m_1, ..., 1333e35fdd936d133bf8a48de140a3c666897588a05shiqian// and m_n. 1334e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Matcher1, typename Matcher2> 1335e35fdd936d133bf8a48de140a3c666897588a05shiqianclass EitherOfMatcher { 1336e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 1337e35fdd936d133bf8a48de140a3c666897588a05shiqian EitherOfMatcher(Matcher1 matcher1, Matcher2 matcher2) 1338e35fdd936d133bf8a48de140a3c666897588a05shiqian : matcher1_(matcher1), matcher2_(matcher2) {} 1339e35fdd936d133bf8a48de140a3c666897588a05shiqian 1340e35fdd936d133bf8a48de140a3c666897588a05shiqian // This template type conversion operator allows a 1341e35fdd936d133bf8a48de140a3c666897588a05shiqian // EitherOfMatcher<Matcher1, Matcher2> object to match any type that 1342e35fdd936d133bf8a48de140a3c666897588a05shiqian // both Matcher1 and Matcher2 can match. 1343e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename T> 1344e35fdd936d133bf8a48de140a3c666897588a05shiqian operator Matcher<T>() const { 134516cf473930c01cd7a1a51dff65f22c541fbad5b8zhanyong.wan return Matcher<T>(new EitherOfMatcherImpl<T>( 134616cf473930c01cd7a1a51dff65f22c541fbad5b8zhanyong.wan SafeMatcherCast<T>(matcher1_), SafeMatcherCast<T>(matcher2_))); 1347e35fdd936d133bf8a48de140a3c666897588a05shiqian } 134832de5f53763125925e078498250f7e73a88de9edzhanyong.wan 1349e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 1350e35fdd936d133bf8a48de140a3c666897588a05shiqian Matcher1 matcher1_; 1351e35fdd936d133bf8a48de140a3c666897588a05shiqian Matcher2 matcher2_; 135232de5f53763125925e078498250f7e73a88de9edzhanyong.wan 135332de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(EitherOfMatcher); 1354e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 1355e35fdd936d133bf8a48de140a3c666897588a05shiqian 1356e35fdd936d133bf8a48de140a3c666897588a05shiqian// Used for implementing Truly(pred), which turns a predicate into a 1357e35fdd936d133bf8a48de140a3c666897588a05shiqian// matcher. 1358e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Predicate> 1359e35fdd936d133bf8a48de140a3c666897588a05shiqianclass TrulyMatcher { 1360e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 1361e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit TrulyMatcher(Predicate pred) : predicate_(pred) {} 1362e35fdd936d133bf8a48de140a3c666897588a05shiqian 1363e35fdd936d133bf8a48de140a3c666897588a05shiqian // This method template allows Truly(pred) to be used as a matcher 1364e35fdd936d133bf8a48de140a3c666897588a05shiqian // for type T where T is the argument type of predicate 'pred'. The 1365e35fdd936d133bf8a48de140a3c666897588a05shiqian // argument is passed by reference as the predicate may be 1366e35fdd936d133bf8a48de140a3c666897588a05shiqian // interested in the address of the argument. 1367e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename T> 1368db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan bool MatchAndExplain(T& x, // NOLINT 1369db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan MatchResultListener* /* listener */) const { 1370652540a278e56528e576f9ea77515f386698a326zhanyong.wan#if GTEST_OS_WINDOWS 1371e35fdd936d133bf8a48de140a3c666897588a05shiqian // MSVC warns about converting a value into bool (warning 4800). 1372e35fdd936d133bf8a48de140a3c666897588a05shiqian#pragma warning(push) // Saves the current warning state. 1373e35fdd936d133bf8a48de140a3c666897588a05shiqian#pragma warning(disable:4800) // Temporarily disables warning 4800. 1374e35fdd936d133bf8a48de140a3c666897588a05shiqian#endif // GTEST_OS_WINDOWS 1375e35fdd936d133bf8a48de140a3c666897588a05shiqian return predicate_(x); 1376652540a278e56528e576f9ea77515f386698a326zhanyong.wan#if GTEST_OS_WINDOWS 1377e35fdd936d133bf8a48de140a3c666897588a05shiqian#pragma warning(pop) // Restores the warning state. 1378e35fdd936d133bf8a48de140a3c666897588a05shiqian#endif // GTEST_OS_WINDOWS 1379e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1380e35fdd936d133bf8a48de140a3c666897588a05shiqian 1381e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeTo(::std::ostream* os) const { 1382e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "satisfies the given predicate"; 1383e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1384e35fdd936d133bf8a48de140a3c666897588a05shiqian 1385e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeNegationTo(::std::ostream* os) const { 1386e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "doesn't satisfy the given predicate"; 1387e35fdd936d133bf8a48de140a3c666897588a05shiqian } 138832de5f53763125925e078498250f7e73a88de9edzhanyong.wan 1389e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 1390e35fdd936d133bf8a48de140a3c666897588a05shiqian Predicate predicate_; 139132de5f53763125925e078498250f7e73a88de9edzhanyong.wan 139232de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(TrulyMatcher); 1393e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 1394e35fdd936d133bf8a48de140a3c666897588a05shiqian 1395e35fdd936d133bf8a48de140a3c666897588a05shiqian// Used for implementing Matches(matcher), which turns a matcher into 1396e35fdd936d133bf8a48de140a3c666897588a05shiqian// a predicate. 1397e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename M> 1398e35fdd936d133bf8a48de140a3c666897588a05shiqianclass MatcherAsPredicate { 1399e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 1400e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit MatcherAsPredicate(M matcher) : matcher_(matcher) {} 1401e35fdd936d133bf8a48de140a3c666897588a05shiqian 1402e35fdd936d133bf8a48de140a3c666897588a05shiqian // This template operator() allows Matches(m) to be used as a 1403e35fdd936d133bf8a48de140a3c666897588a05shiqian // predicate on type T where m is a matcher on type T. 1404e35fdd936d133bf8a48de140a3c666897588a05shiqian // 1405e35fdd936d133bf8a48de140a3c666897588a05shiqian // The argument x is passed by reference instead of by value, as 1406e35fdd936d133bf8a48de140a3c666897588a05shiqian // some matcher may be interested in its address (e.g. as in 1407e35fdd936d133bf8a48de140a3c666897588a05shiqian // Matches(Ref(n))(x)). 1408e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename T> 1409e35fdd936d133bf8a48de140a3c666897588a05shiqian bool operator()(const T& x) const { 1410e35fdd936d133bf8a48de140a3c666897588a05shiqian // We let matcher_ commit to a particular type here instead of 1411e35fdd936d133bf8a48de140a3c666897588a05shiqian // when the MatcherAsPredicate object was constructed. This 1412e35fdd936d133bf8a48de140a3c666897588a05shiqian // allows us to write Matches(m) where m is a polymorphic matcher 1413e35fdd936d133bf8a48de140a3c666897588a05shiqian // (e.g. Eq(5)). 1414e35fdd936d133bf8a48de140a3c666897588a05shiqian // 1415e35fdd936d133bf8a48de140a3c666897588a05shiqian // If we write Matcher<T>(matcher_).Matches(x) here, it won't 1416e35fdd936d133bf8a48de140a3c666897588a05shiqian // compile when matcher_ has type Matcher<const T&>; if we write 1417e35fdd936d133bf8a48de140a3c666897588a05shiqian // Matcher<const T&>(matcher_).Matches(x) here, it won't compile 1418e35fdd936d133bf8a48de140a3c666897588a05shiqian // when matcher_ has type Matcher<T>; if we just write 1419e35fdd936d133bf8a48de140a3c666897588a05shiqian // matcher_.Matches(x), it won't compile when matcher_ is 1420e35fdd936d133bf8a48de140a3c666897588a05shiqian // polymorphic, e.g. Eq(5). 1421e35fdd936d133bf8a48de140a3c666897588a05shiqian // 1422e35fdd936d133bf8a48de140a3c666897588a05shiqian // MatcherCast<const T&>() is necessary for making the code work 1423e35fdd936d133bf8a48de140a3c666897588a05shiqian // in all of the above situations. 1424e35fdd936d133bf8a48de140a3c666897588a05shiqian return MatcherCast<const T&>(matcher_).Matches(x); 1425e35fdd936d133bf8a48de140a3c666897588a05shiqian } 142632de5f53763125925e078498250f7e73a88de9edzhanyong.wan 1427e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 1428e35fdd936d133bf8a48de140a3c666897588a05shiqian M matcher_; 142932de5f53763125925e078498250f7e73a88de9edzhanyong.wan 143032de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(MatcherAsPredicate); 1431e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 1432e35fdd936d133bf8a48de140a3c666897588a05shiqian 1433e35fdd936d133bf8a48de140a3c666897588a05shiqian// For implementing ASSERT_THAT() and EXPECT_THAT(). The template 1434e35fdd936d133bf8a48de140a3c666897588a05shiqian// argument M must be a type that can be converted to a matcher. 1435e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename M> 1436e35fdd936d133bf8a48de140a3c666897588a05shiqianclass PredicateFormatterFromMatcher { 1437e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 1438e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit PredicateFormatterFromMatcher(const M& m) : matcher_(m) {} 1439e35fdd936d133bf8a48de140a3c666897588a05shiqian 1440e35fdd936d133bf8a48de140a3c666897588a05shiqian // This template () operator allows a PredicateFormatterFromMatcher 1441e35fdd936d133bf8a48de140a3c666897588a05shiqian // object to act as a predicate-formatter suitable for using with 1442e35fdd936d133bf8a48de140a3c666897588a05shiqian // Google Test's EXPECT_PRED_FORMAT1() macro. 1443e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename T> 1444e35fdd936d133bf8a48de140a3c666897588a05shiqian AssertionResult operator()(const char* value_text, const T& x) const { 1445e35fdd936d133bf8a48de140a3c666897588a05shiqian // We convert matcher_ to a Matcher<const T&> *now* instead of 1446e35fdd936d133bf8a48de140a3c666897588a05shiqian // when the PredicateFormatterFromMatcher object was constructed, 1447e35fdd936d133bf8a48de140a3c666897588a05shiqian // as matcher_ may be polymorphic (e.g. NotNull()) and we won't 1448e35fdd936d133bf8a48de140a3c666897588a05shiqian // know which type to instantiate it to until we actually see the 1449e35fdd936d133bf8a48de140a3c666897588a05shiqian // type of x here. 1450e35fdd936d133bf8a48de140a3c666897588a05shiqian // 1451e35fdd936d133bf8a48de140a3c666897588a05shiqian // We write MatcherCast<const T&>(matcher_) instead of 1452e35fdd936d133bf8a48de140a3c666897588a05shiqian // Matcher<const T&>(matcher_), as the latter won't compile when 1453e35fdd936d133bf8a48de140a3c666897588a05shiqian // matcher_ has type Matcher<T> (e.g. An<int>()). 1454e35fdd936d133bf8a48de140a3c666897588a05shiqian const Matcher<const T&> matcher = MatcherCast<const T&>(matcher_); 1455821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan StringMatchResultListener listener; 1456b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan if (MatchPrintAndExplain(x, matcher, &listener)) 1457e35fdd936d133bf8a48de140a3c666897588a05shiqian return AssertionSuccess(); 1458b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan 1459b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan ::std::stringstream ss; 1460b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan ss << "Value of: " << value_text << "\n" 1461b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan << "Expected: "; 1462b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan matcher.DescribeTo(&ss); 1463b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan ss << "\n Actual: " << listener.str(); 1464b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan return AssertionFailure() << ss.str(); 1465e35fdd936d133bf8a48de140a3c666897588a05shiqian } 146632de5f53763125925e078498250f7e73a88de9edzhanyong.wan 1467e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 1468e35fdd936d133bf8a48de140a3c666897588a05shiqian const M matcher_; 146932de5f53763125925e078498250f7e73a88de9edzhanyong.wan 147032de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(PredicateFormatterFromMatcher); 1471e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 1472e35fdd936d133bf8a48de140a3c666897588a05shiqian 1473e35fdd936d133bf8a48de140a3c666897588a05shiqian// A helper function for converting a matcher to a predicate-formatter 1474e35fdd936d133bf8a48de140a3c666897588a05shiqian// without the user needing to explicitly write the type. This is 1475e35fdd936d133bf8a48de140a3c666897588a05shiqian// used for implementing ASSERT_THAT() and EXPECT_THAT(). 1476e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename M> 1477e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PredicateFormatterFromMatcher<M> 1478e35fdd936d133bf8a48de140a3c666897588a05shiqianMakePredicateFormatterFromMatcher(const M& matcher) { 1479e35fdd936d133bf8a48de140a3c666897588a05shiqian return PredicateFormatterFromMatcher<M>(matcher); 1480e35fdd936d133bf8a48de140a3c666897588a05shiqian} 1481e35fdd936d133bf8a48de140a3c666897588a05shiqian 1482e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements the polymorphic floating point equality matcher, which 1483e35fdd936d133bf8a48de140a3c666897588a05shiqian// matches two float values using ULP-based approximation. The 1484e35fdd936d133bf8a48de140a3c666897588a05shiqian// template is meant to be instantiated with FloatType being either 1485e35fdd936d133bf8a48de140a3c666897588a05shiqian// float or double. 1486e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename FloatType> 1487e35fdd936d133bf8a48de140a3c666897588a05shiqianclass FloatingEqMatcher { 1488e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 1489e35fdd936d133bf8a48de140a3c666897588a05shiqian // Constructor for FloatingEqMatcher. 1490e35fdd936d133bf8a48de140a3c666897588a05shiqian // The matcher's input will be compared with rhs. The matcher treats two 1491e35fdd936d133bf8a48de140a3c666897588a05shiqian // NANs as equal if nan_eq_nan is true. Otherwise, under IEEE standards, 1492e35fdd936d133bf8a48de140a3c666897588a05shiqian // equality comparisons between NANs will always return false. 1493e35fdd936d133bf8a48de140a3c666897588a05shiqian FloatingEqMatcher(FloatType rhs, bool nan_eq_nan) : 1494e35fdd936d133bf8a48de140a3c666897588a05shiqian rhs_(rhs), nan_eq_nan_(nan_eq_nan) {} 1495e35fdd936d133bf8a48de140a3c666897588a05shiqian 1496e35fdd936d133bf8a48de140a3c666897588a05shiqian // Implements floating point equality matcher as a Matcher<T>. 1497e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename T> 1498e35fdd936d133bf8a48de140a3c666897588a05shiqian class Impl : public MatcherInterface<T> { 1499e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 1500e35fdd936d133bf8a48de140a3c666897588a05shiqian Impl(FloatType rhs, bool nan_eq_nan) : 1501e35fdd936d133bf8a48de140a3c666897588a05shiqian rhs_(rhs), nan_eq_nan_(nan_eq_nan) {} 1502e35fdd936d133bf8a48de140a3c666897588a05shiqian 1503821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan virtual bool MatchAndExplain(T value, 1504821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan MatchResultListener* /* listener */) const { 1505e35fdd936d133bf8a48de140a3c666897588a05shiqian const FloatingPoint<FloatType> lhs(value), rhs(rhs_); 1506e35fdd936d133bf8a48de140a3c666897588a05shiqian 1507e35fdd936d133bf8a48de140a3c666897588a05shiqian // Compares NaNs first, if nan_eq_nan_ is true. 1508e35fdd936d133bf8a48de140a3c666897588a05shiqian if (nan_eq_nan_ && lhs.is_nan()) { 1509e35fdd936d133bf8a48de140a3c666897588a05shiqian return rhs.is_nan(); 1510e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1511e35fdd936d133bf8a48de140a3c666897588a05shiqian 1512e35fdd936d133bf8a48de140a3c666897588a05shiqian return lhs.AlmostEquals(rhs); 1513e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1514e35fdd936d133bf8a48de140a3c666897588a05shiqian 1515e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeTo(::std::ostream* os) const { 1516e35fdd936d133bf8a48de140a3c666897588a05shiqian // os->precision() returns the previously set precision, which we 1517e35fdd936d133bf8a48de140a3c666897588a05shiqian // store to restore the ostream to its original configuration 1518e35fdd936d133bf8a48de140a3c666897588a05shiqian // after outputting. 1519e35fdd936d133bf8a48de140a3c666897588a05shiqian const ::std::streamsize old_precision = os->precision( 1520e35fdd936d133bf8a48de140a3c666897588a05shiqian ::std::numeric_limits<FloatType>::digits10 + 2); 1521e35fdd936d133bf8a48de140a3c666897588a05shiqian if (FloatingPoint<FloatType>(rhs_).is_nan()) { 1522e35fdd936d133bf8a48de140a3c666897588a05shiqian if (nan_eq_nan_) { 1523e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "is NaN"; 1524e35fdd936d133bf8a48de140a3c666897588a05shiqian } else { 1525e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "never matches"; 1526e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1527e35fdd936d133bf8a48de140a3c666897588a05shiqian } else { 1528e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "is approximately " << rhs_; 1529e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1530e35fdd936d133bf8a48de140a3c666897588a05shiqian os->precision(old_precision); 1531e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1532e35fdd936d133bf8a48de140a3c666897588a05shiqian 1533e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeNegationTo(::std::ostream* os) const { 1534e35fdd936d133bf8a48de140a3c666897588a05shiqian // As before, get original precision. 1535e35fdd936d133bf8a48de140a3c666897588a05shiqian const ::std::streamsize old_precision = os->precision( 1536e35fdd936d133bf8a48de140a3c666897588a05shiqian ::std::numeric_limits<FloatType>::digits10 + 2); 1537e35fdd936d133bf8a48de140a3c666897588a05shiqian if (FloatingPoint<FloatType>(rhs_).is_nan()) { 1538e35fdd936d133bf8a48de140a3c666897588a05shiqian if (nan_eq_nan_) { 1539b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *os << "isn't NaN"; 1540e35fdd936d133bf8a48de140a3c666897588a05shiqian } else { 1541e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "is anything"; 1542e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1543e35fdd936d133bf8a48de140a3c666897588a05shiqian } else { 1544b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *os << "isn't approximately " << rhs_; 1545e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1546e35fdd936d133bf8a48de140a3c666897588a05shiqian // Restore original precision. 1547e35fdd936d133bf8a48de140a3c666897588a05shiqian os->precision(old_precision); 1548e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1549e35fdd936d133bf8a48de140a3c666897588a05shiqian 1550e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 1551e35fdd936d133bf8a48de140a3c666897588a05shiqian const FloatType rhs_; 1552e35fdd936d133bf8a48de140a3c666897588a05shiqian const bool nan_eq_nan_; 155332de5f53763125925e078498250f7e73a88de9edzhanyong.wan 155432de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(Impl); 1555e35fdd936d133bf8a48de140a3c666897588a05shiqian }; 1556e35fdd936d133bf8a48de140a3c666897588a05shiqian 1557e35fdd936d133bf8a48de140a3c666897588a05shiqian // The following 3 type conversion operators allow FloatEq(rhs) and 1558e35fdd936d133bf8a48de140a3c666897588a05shiqian // NanSensitiveFloatEq(rhs) to be used as a Matcher<float>, a 1559e35fdd936d133bf8a48de140a3c666897588a05shiqian // Matcher<const float&>, or a Matcher<float&>, but nothing else. 1560e35fdd936d133bf8a48de140a3c666897588a05shiqian // (While Google's C++ coding style doesn't allow arguments passed 1561e35fdd936d133bf8a48de140a3c666897588a05shiqian // by non-const reference, we may see them in code not conforming to 1562e35fdd936d133bf8a48de140a3c666897588a05shiqian // the style. Therefore Google Mock needs to support them.) 1563e35fdd936d133bf8a48de140a3c666897588a05shiqian operator Matcher<FloatType>() const { 1564e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakeMatcher(new Impl<FloatType>(rhs_, nan_eq_nan_)); 1565e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1566e35fdd936d133bf8a48de140a3c666897588a05shiqian 1567e35fdd936d133bf8a48de140a3c666897588a05shiqian operator Matcher<const FloatType&>() const { 1568e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakeMatcher(new Impl<const FloatType&>(rhs_, nan_eq_nan_)); 1569e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1570e35fdd936d133bf8a48de140a3c666897588a05shiqian 1571e35fdd936d133bf8a48de140a3c666897588a05shiqian operator Matcher<FloatType&>() const { 1572e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakeMatcher(new Impl<FloatType&>(rhs_, nan_eq_nan_)); 1573e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1574e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 1575e35fdd936d133bf8a48de140a3c666897588a05shiqian const FloatType rhs_; 1576e35fdd936d133bf8a48de140a3c666897588a05shiqian const bool nan_eq_nan_; 157732de5f53763125925e078498250f7e73a88de9edzhanyong.wan 157832de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(FloatingEqMatcher); 1579e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 1580e35fdd936d133bf8a48de140a3c666897588a05shiqian 1581e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements the Pointee(m) matcher for matching a pointer whose 1582e35fdd936d133bf8a48de140a3c666897588a05shiqian// pointee matches matcher m. The pointer can be either raw or smart. 1583e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename InnerMatcher> 1584e35fdd936d133bf8a48de140a3c666897588a05shiqianclass PointeeMatcher { 1585e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 1586e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit PointeeMatcher(const InnerMatcher& matcher) : matcher_(matcher) {} 1587e35fdd936d133bf8a48de140a3c666897588a05shiqian 1588e35fdd936d133bf8a48de140a3c666897588a05shiqian // This type conversion operator template allows Pointee(m) to be 1589e35fdd936d133bf8a48de140a3c666897588a05shiqian // used as a matcher for any pointer type whose pointee type is 1590e35fdd936d133bf8a48de140a3c666897588a05shiqian // compatible with the inner matcher, where type Pointer can be 1591e35fdd936d133bf8a48de140a3c666897588a05shiqian // either a raw pointer or a smart pointer. 1592e35fdd936d133bf8a48de140a3c666897588a05shiqian // 1593e35fdd936d133bf8a48de140a3c666897588a05shiqian // The reason we do this instead of relying on 1594e35fdd936d133bf8a48de140a3c666897588a05shiqian // MakePolymorphicMatcher() is that the latter is not flexible 1595e35fdd936d133bf8a48de140a3c666897588a05shiqian // enough for implementing the DescribeTo() method of Pointee(). 1596e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename Pointer> 1597e35fdd936d133bf8a48de140a3c666897588a05shiqian operator Matcher<Pointer>() const { 1598e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakeMatcher(new Impl<Pointer>(matcher_)); 1599e35fdd936d133bf8a48de140a3c666897588a05shiqian } 160032de5f53763125925e078498250f7e73a88de9edzhanyong.wan 1601e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 1602e35fdd936d133bf8a48de140a3c666897588a05shiqian // The monomorphic implementation that works for a particular pointer type. 1603e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename Pointer> 1604e35fdd936d133bf8a48de140a3c666897588a05shiqian class Impl : public MatcherInterface<Pointer> { 1605e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 160602f7106557fde1f1075dc53d65ef1f7a11851f93zhanyong.wan typedef typename PointeeOf<GTEST_REMOVE_CONST_( // NOLINT 160702f7106557fde1f1075dc53d65ef1f7a11851f93zhanyong.wan GTEST_REMOVE_REFERENCE_(Pointer))>::type Pointee; 1608e35fdd936d133bf8a48de140a3c666897588a05shiqian 1609e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit Impl(const InnerMatcher& matcher) 1610e35fdd936d133bf8a48de140a3c666897588a05shiqian : matcher_(MatcherCast<const Pointee&>(matcher)) {} 1611e35fdd936d133bf8a48de140a3c666897588a05shiqian 1612e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeTo(::std::ostream* os) const { 1613e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "points to a value that "; 1614e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher_.DescribeTo(os); 1615e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1616e35fdd936d133bf8a48de140a3c666897588a05shiqian 1617e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeNegationTo(::std::ostream* os) const { 1618e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "does not point to a value that "; 1619e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher_.DescribeTo(os); 1620e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1621e35fdd936d133bf8a48de140a3c666897588a05shiqian 1622821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan virtual bool MatchAndExplain(Pointer pointer, 1623821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan MatchResultListener* listener) const { 1624e35fdd936d133bf8a48de140a3c666897588a05shiqian if (GetRawPointer(pointer) == NULL) 1625821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan return false; 1626e35fdd936d133bf8a48de140a3c666897588a05shiqian 1627676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan *listener << "which points to "; 1628676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan return MatchPrintAndExplain(*pointer, matcher_, listener); 1629e35fdd936d133bf8a48de140a3c666897588a05shiqian } 163032de5f53763125925e078498250f7e73a88de9edzhanyong.wan 1631e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 1632e35fdd936d133bf8a48de140a3c666897588a05shiqian const Matcher<const Pointee&> matcher_; 163332de5f53763125925e078498250f7e73a88de9edzhanyong.wan 163432de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(Impl); 1635e35fdd936d133bf8a48de140a3c666897588a05shiqian }; 1636e35fdd936d133bf8a48de140a3c666897588a05shiqian 1637e35fdd936d133bf8a48de140a3c666897588a05shiqian const InnerMatcher matcher_; 163832de5f53763125925e078498250f7e73a88de9edzhanyong.wan 163932de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(PointeeMatcher); 1640e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 1641e35fdd936d133bf8a48de140a3c666897588a05shiqian 1642e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements the Field() matcher for matching a field (i.e. member 1643e35fdd936d133bf8a48de140a3c666897588a05shiqian// variable) of an object. 1644e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Class, typename FieldType> 1645e35fdd936d133bf8a48de140a3c666897588a05shiqianclass FieldMatcher { 1646e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 1647e35fdd936d133bf8a48de140a3c666897588a05shiqian FieldMatcher(FieldType Class::*field, 1648e35fdd936d133bf8a48de140a3c666897588a05shiqian const Matcher<const FieldType&>& matcher) 1649e35fdd936d133bf8a48de140a3c666897588a05shiqian : field_(field), matcher_(matcher) {} 1650e35fdd936d133bf8a48de140a3c666897588a05shiqian 1651e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeTo(::std::ostream* os) const { 1652676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan *os << "is an object whose given field "; 1653e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher_.DescribeTo(os); 1654e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1655e35fdd936d133bf8a48de140a3c666897588a05shiqian 1656e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeNegationTo(::std::ostream* os) const { 1657676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan *os << "is an object whose given field "; 1658e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher_.DescribeNegationTo(os); 1659e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1660e35fdd936d133bf8a48de140a3c666897588a05shiqian 1661db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan template <typename T> 1662db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan bool MatchAndExplain(const T& value, MatchResultListener* listener) const { 1663db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan return MatchAndExplainImpl( 1664db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan typename ::testing::internal:: 166502f7106557fde1f1075dc53d65ef1f7a11851f93zhanyong.wan is_pointer<GTEST_REMOVE_CONST_(T)>::type(), 1666db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan value, listener); 1667db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan } 1668db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan 1669db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan private: 1670db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan // The first argument of MatchAndExplainImpl() is needed to help 167118490653e80d484b4650d8799184fd1e021efc7bzhanyong.wan // Symbian's C++ compiler choose which overload to use. Its type is 167218490653e80d484b4650d8799184fd1e021efc7bzhanyong.wan // true_type iff the Field() matcher is used to match a pointer. 1673db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan bool MatchAndExplainImpl(false_type /* is_not_pointer */, const Class& obj, 1674db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan MatchResultListener* listener) const { 1675676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan *listener << "whose given field is "; 1676676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan return MatchPrintAndExplain(obj.*field_, matcher_, listener); 1677e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1678e35fdd936d133bf8a48de140a3c666897588a05shiqian 1679db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan bool MatchAndExplainImpl(true_type /* is_pointer */, const Class* p, 1680db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan MatchResultListener* listener) const { 1681821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan if (p == NULL) 1682821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan return false; 1683821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan 1684676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan *listener << "which points to an object "; 1685821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // Since *p has a field, it must be a class/struct/union type and 1686821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // thus cannot be a pointer. Therefore we pass false_type() as 1687821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // the first argument. 1688db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan return MatchAndExplainImpl(false_type(), *p, listener); 1689e35fdd936d133bf8a48de140a3c666897588a05shiqian } 169032de5f53763125925e078498250f7e73a88de9edzhanyong.wan 1691e35fdd936d133bf8a48de140a3c666897588a05shiqian const FieldType Class::*field_; 1692e35fdd936d133bf8a48de140a3c666897588a05shiqian const Matcher<const FieldType&> matcher_; 169332de5f53763125925e078498250f7e73a88de9edzhanyong.wan 169432de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(FieldMatcher); 1695e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 1696e35fdd936d133bf8a48de140a3c666897588a05shiqian 1697e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements the Property() matcher for matching a property 1698e35fdd936d133bf8a48de140a3c666897588a05shiqian// (i.e. return value of a getter method) of an object. 1699e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Class, typename PropertyType> 1700e35fdd936d133bf8a48de140a3c666897588a05shiqianclass PropertyMatcher { 1701e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 1702e35fdd936d133bf8a48de140a3c666897588a05shiqian // The property may have a reference type, so 'const PropertyType&' 1703e35fdd936d133bf8a48de140a3c666897588a05shiqian // may cause double references and fail to compile. That's why we 170402f7106557fde1f1075dc53d65ef1f7a11851f93zhanyong.wan // need GTEST_REFERENCE_TO_CONST, which works regardless of 1705e35fdd936d133bf8a48de140a3c666897588a05shiqian // PropertyType being a reference or not. 170602f7106557fde1f1075dc53d65ef1f7a11851f93zhanyong.wan typedef GTEST_REFERENCE_TO_CONST_(PropertyType) RefToConstProperty; 1707e35fdd936d133bf8a48de140a3c666897588a05shiqian 1708e35fdd936d133bf8a48de140a3c666897588a05shiqian PropertyMatcher(PropertyType (Class::*property)() const, 1709e35fdd936d133bf8a48de140a3c666897588a05shiqian const Matcher<RefToConstProperty>& matcher) 1710e35fdd936d133bf8a48de140a3c666897588a05shiqian : property_(property), matcher_(matcher) {} 1711e35fdd936d133bf8a48de140a3c666897588a05shiqian 1712e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeTo(::std::ostream* os) const { 1713676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan *os << "is an object whose given property "; 1714e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher_.DescribeTo(os); 1715e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1716e35fdd936d133bf8a48de140a3c666897588a05shiqian 1717e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeNegationTo(::std::ostream* os) const { 1718676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan *os << "is an object whose given property "; 1719e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher_.DescribeNegationTo(os); 1720e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1721e35fdd936d133bf8a48de140a3c666897588a05shiqian 1722db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan template <typename T> 1723db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan bool MatchAndExplain(const T&value, MatchResultListener* listener) const { 1724db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan return MatchAndExplainImpl( 1725db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan typename ::testing::internal:: 172602f7106557fde1f1075dc53d65ef1f7a11851f93zhanyong.wan is_pointer<GTEST_REMOVE_CONST_(T)>::type(), 1727db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan value, listener); 1728db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan } 1729db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan 1730db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan private: 1731db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan // The first argument of MatchAndExplainImpl() is needed to help 173218490653e80d484b4650d8799184fd1e021efc7bzhanyong.wan // Symbian's C++ compiler choose which overload to use. Its type is 173318490653e80d484b4650d8799184fd1e021efc7bzhanyong.wan // true_type iff the Property() matcher is used to match a pointer. 1734db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan bool MatchAndExplainImpl(false_type /* is_not_pointer */, const Class& obj, 1735db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan MatchResultListener* listener) const { 1736676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan *listener << "whose given property is "; 1737676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan // Cannot pass the return value (for example, int) to MatchPrintAndExplain, 1738676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan // which takes a non-const reference as argument. 1739676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan RefToConstProperty result = (obj.*property_)(); 1740676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan return MatchPrintAndExplain(result, matcher_, listener); 1741e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1742e35fdd936d133bf8a48de140a3c666897588a05shiqian 1743db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan bool MatchAndExplainImpl(true_type /* is_pointer */, const Class* p, 1744db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan MatchResultListener* listener) const { 1745821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan if (p == NULL) 1746821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan return false; 1747821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan 1748676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan *listener << "which points to an object "; 1749821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // Since *p has a property method, it must be a class/struct/union 1750821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // type and thus cannot be a pointer. Therefore we pass 1751821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // false_type() as the first argument. 1752db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan return MatchAndExplainImpl(false_type(), *p, listener); 1753e35fdd936d133bf8a48de140a3c666897588a05shiqian } 175432de5f53763125925e078498250f7e73a88de9edzhanyong.wan 1755e35fdd936d133bf8a48de140a3c666897588a05shiqian PropertyType (Class::*property_)() const; 1756e35fdd936d133bf8a48de140a3c666897588a05shiqian const Matcher<RefToConstProperty> matcher_; 175732de5f53763125925e078498250f7e73a88de9edzhanyong.wan 175832de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(PropertyMatcher); 1759e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 1760e35fdd936d133bf8a48de140a3c666897588a05shiqian 1761e35fdd936d133bf8a48de140a3c666897588a05shiqian// Type traits specifying various features of different functors for ResultOf. 1762e35fdd936d133bf8a48de140a3c666897588a05shiqian// The default template specifies features for functor objects. 1763e35fdd936d133bf8a48de140a3c666897588a05shiqian// Functor classes have to typedef argument_type and result_type 1764e35fdd936d133bf8a48de140a3c666897588a05shiqian// to be compatible with ResultOf. 1765e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Functor> 1766e35fdd936d133bf8a48de140a3c666897588a05shiqianstruct CallableTraits { 1767e35fdd936d133bf8a48de140a3c666897588a05shiqian typedef typename Functor::result_type ResultType; 1768e35fdd936d133bf8a48de140a3c666897588a05shiqian typedef Functor StorageType; 1769e35fdd936d133bf8a48de140a3c666897588a05shiqian 177032de5f53763125925e078498250f7e73a88de9edzhanyong.wan static void CheckIsValid(Functor /* functor */) {} 1771e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename T> 1772e35fdd936d133bf8a48de140a3c666897588a05shiqian static ResultType Invoke(Functor f, T arg) { return f(arg); } 1773e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 1774e35fdd936d133bf8a48de140a3c666897588a05shiqian 1775e35fdd936d133bf8a48de140a3c666897588a05shiqian// Specialization for function pointers. 1776e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename ArgType, typename ResType> 1777e35fdd936d133bf8a48de140a3c666897588a05shiqianstruct CallableTraits<ResType(*)(ArgType)> { 1778e35fdd936d133bf8a48de140a3c666897588a05shiqian typedef ResType ResultType; 1779e35fdd936d133bf8a48de140a3c666897588a05shiqian typedef ResType(*StorageType)(ArgType); 1780e35fdd936d133bf8a48de140a3c666897588a05shiqian 1781e35fdd936d133bf8a48de140a3c666897588a05shiqian static void CheckIsValid(ResType(*f)(ArgType)) { 1782f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan GTEST_CHECK_(f != NULL) 1783e35fdd936d133bf8a48de140a3c666897588a05shiqian << "NULL function pointer is passed into ResultOf()."; 1784e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1785e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename T> 1786e35fdd936d133bf8a48de140a3c666897588a05shiqian static ResType Invoke(ResType(*f)(ArgType), T arg) { 1787e35fdd936d133bf8a48de140a3c666897588a05shiqian return (*f)(arg); 1788e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1789e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 1790e35fdd936d133bf8a48de140a3c666897588a05shiqian 1791e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements the ResultOf() matcher for matching a return value of a 1792e35fdd936d133bf8a48de140a3c666897588a05shiqian// unary function of an object. 1793e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Callable> 1794e35fdd936d133bf8a48de140a3c666897588a05shiqianclass ResultOfMatcher { 1795e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 1796e35fdd936d133bf8a48de140a3c666897588a05shiqian typedef typename CallableTraits<Callable>::ResultType ResultType; 1797e35fdd936d133bf8a48de140a3c666897588a05shiqian 1798e35fdd936d133bf8a48de140a3c666897588a05shiqian ResultOfMatcher(Callable callable, const Matcher<ResultType>& matcher) 1799e35fdd936d133bf8a48de140a3c666897588a05shiqian : callable_(callable), matcher_(matcher) { 1800e35fdd936d133bf8a48de140a3c666897588a05shiqian CallableTraits<Callable>::CheckIsValid(callable_); 1801e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1802e35fdd936d133bf8a48de140a3c666897588a05shiqian 1803e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename T> 1804e35fdd936d133bf8a48de140a3c666897588a05shiqian operator Matcher<T>() const { 1805e35fdd936d133bf8a48de140a3c666897588a05shiqian return Matcher<T>(new Impl<T>(callable_, matcher_)); 1806e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1807e35fdd936d133bf8a48de140a3c666897588a05shiqian 1808e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 1809e35fdd936d133bf8a48de140a3c666897588a05shiqian typedef typename CallableTraits<Callable>::StorageType CallableStorageType; 1810e35fdd936d133bf8a48de140a3c666897588a05shiqian 1811e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename T> 1812e35fdd936d133bf8a48de140a3c666897588a05shiqian class Impl : public MatcherInterface<T> { 1813e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 1814e35fdd936d133bf8a48de140a3c666897588a05shiqian Impl(CallableStorageType callable, const Matcher<ResultType>& matcher) 1815e35fdd936d133bf8a48de140a3c666897588a05shiqian : callable_(callable), matcher_(matcher) {} 1816e35fdd936d133bf8a48de140a3c666897588a05shiqian 1817e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeTo(::std::ostream* os) const { 1818676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan *os << "is mapped by the given callable to a value that "; 1819e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher_.DescribeTo(os); 1820e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1821e35fdd936d133bf8a48de140a3c666897588a05shiqian 1822e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeNegationTo(::std::ostream* os) const { 1823676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan *os << "is mapped by the given callable to a value that "; 1824e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher_.DescribeNegationTo(os); 1825e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1826e35fdd936d133bf8a48de140a3c666897588a05shiqian 1827821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan virtual bool MatchAndExplain(T obj, MatchResultListener* listener) const { 1828676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan *listener << "which is mapped by the given callable to "; 1829676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan // Cannot pass the return value (for example, int) to 1830676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan // MatchPrintAndExplain, which takes a non-const reference as argument. 1831676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan ResultType result = 1832676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan CallableTraits<Callable>::template Invoke<T>(callable_, obj); 1833676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan return MatchPrintAndExplain(result, matcher_, listener); 1834e35fdd936d133bf8a48de140a3c666897588a05shiqian } 183532de5f53763125925e078498250f7e73a88de9edzhanyong.wan 1836e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 1837e35fdd936d133bf8a48de140a3c666897588a05shiqian // Functors often define operator() as non-const method even though 1838e35fdd936d133bf8a48de140a3c666897588a05shiqian // they are actualy stateless. But we need to use them even when 1839e35fdd936d133bf8a48de140a3c666897588a05shiqian // 'this' is a const pointer. It's the user's responsibility not to 1840e35fdd936d133bf8a48de140a3c666897588a05shiqian // use stateful callables with ResultOf(), which does't guarantee 1841e35fdd936d133bf8a48de140a3c666897588a05shiqian // how many times the callable will be invoked. 1842e35fdd936d133bf8a48de140a3c666897588a05shiqian mutable CallableStorageType callable_; 1843e35fdd936d133bf8a48de140a3c666897588a05shiqian const Matcher<ResultType> matcher_; 184432de5f53763125925e078498250f7e73a88de9edzhanyong.wan 184532de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(Impl); 1846e35fdd936d133bf8a48de140a3c666897588a05shiqian }; // class Impl 1847e35fdd936d133bf8a48de140a3c666897588a05shiqian 1848e35fdd936d133bf8a48de140a3c666897588a05shiqian const CallableStorageType callable_; 1849e35fdd936d133bf8a48de140a3c666897588a05shiqian const Matcher<ResultType> matcher_; 185032de5f53763125925e078498250f7e73a88de9edzhanyong.wan 185132de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(ResultOfMatcher); 1852e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 1853e35fdd936d133bf8a48de140a3c666897588a05shiqian 18546a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan// Implements an equality matcher for any STL-style container whose elements 18556a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan// support ==. This matcher is like Eq(), but its failure explanations provide 18566a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan// more detailed information that is useful when the container is used as a set. 18576a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan// The failure message reports elements that are in one of the operands but not 18586a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan// the other. The failure messages do not report duplicate or out-of-order 18596a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan// elements in the containers (which don't properly matter to sets, but can 18606a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan// occur if the containers are vectors or lists, for example). 18616a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan// 18626a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan// Uses the container's const_iterator, value_type, operator ==, 18636a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan// begin(), and end(). 18646a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wantemplate <typename Container> 18656a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wanclass ContainerEqMatcher { 18666a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan public: 1867b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan typedef internal::StlContainerView<Container> View; 1868b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan typedef typename View::type StlContainer; 1869b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan typedef typename View::const_reference StlContainerReference; 1870b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan 1871b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan // We make a copy of rhs in case the elements in it are modified 1872b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan // after this matcher is created. 1873b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan explicit ContainerEqMatcher(const Container& rhs) : rhs_(View::Copy(rhs)) { 1874b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan // Makes sure the user doesn't instantiate this class template 1875b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan // with a const or reference type. 1876b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan testing::StaticAssertTypeEq<Container, 187702f7106557fde1f1075dc53d65ef1f7a11851f93zhanyong.wan GTEST_REMOVE_CONST_(GTEST_REMOVE_REFERENCE_(Container))>(); 1878b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan } 1879b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan 18806a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan void DescribeTo(::std::ostream* os) const { 18816a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan *os << "equals "; 1882b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan UniversalPrinter<StlContainer>::Print(rhs_, os); 18836a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan } 18846a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan void DescribeNegationTo(::std::ostream* os) const { 18856a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan *os << "does not equal "; 1886b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan UniversalPrinter<StlContainer>::Print(rhs_, os); 18876a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan } 18886a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan 1889b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan template <typename LhsContainer> 1890e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan bool MatchAndExplain(const LhsContainer& lhs, 1891e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan MatchResultListener* listener) const { 189202f7106557fde1f1075dc53d65ef1f7a11851f93zhanyong.wan // GTEST_REMOVE_CONST_() is needed to work around an MSVC 8.0 bug 1893b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan // that causes LhsContainer to be a const type sometimes. 189402f7106557fde1f1075dc53d65ef1f7a11851f93zhanyong.wan typedef internal::StlContainerView<GTEST_REMOVE_CONST_(LhsContainer)> 1895b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan LhsView; 1896b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan typedef typename LhsView::type LhsStlContainer; 1897b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan StlContainerReference lhs_stl_container = LhsView::ConstReference(lhs); 1898e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan if (lhs_stl_container == rhs_) 1899e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan return true; 1900b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan 1901e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan ::std::ostream* const os = listener->stream(); 1902e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan if (os != NULL) { 1903b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan // Something is different. Check for extra values first. 1904e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan bool printed_header = false; 1905e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan for (typename LhsStlContainer::const_iterator it = 1906e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan lhs_stl_container.begin(); 1907e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan it != lhs_stl_container.end(); ++it) { 1908e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan if (internal::ArrayAwareFind(rhs_.begin(), rhs_.end(), *it) == 1909e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan rhs_.end()) { 1910e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan if (printed_header) { 1911e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan *os << ", "; 1912e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan } else { 1913b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *os << "which has these unexpected elements: "; 1914e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan printed_header = true; 1915e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan } 19166953a725fc2151eff18078f8315d92811cd4d90ezhanyong.wan UniversalPrinter<typename LhsStlContainer::value_type>:: 19176953a725fc2151eff18078f8315d92811cd4d90ezhanyong.wan Print(*it, os); 19186a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan } 19196a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan } 19206a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan 1921b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan // Now check for missing values. 1922e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan bool printed_header2 = false; 1923e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan for (typename StlContainer::const_iterator it = rhs_.begin(); 1924e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan it != rhs_.end(); ++it) { 1925e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan if (internal::ArrayAwareFind( 1926e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan lhs_stl_container.begin(), lhs_stl_container.end(), *it) == 1927e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan lhs_stl_container.end()) { 1928e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan if (printed_header2) { 1929e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan *os << ", "; 1930e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan } else { 1931b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *os << (printed_header ? ",\nand" : "which") 1932b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan << " doesn't have these expected elements: "; 1933e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan printed_header2 = true; 1934e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan } 1935e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan UniversalPrinter<typename StlContainer::value_type>::Print(*it, os); 19366a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan } 19376a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan } 19386a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan } 1939e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan 1940e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan return false; 19416a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan } 194232de5f53763125925e078498250f7e73a88de9edzhanyong.wan 19436a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan private: 1944b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan const StlContainer rhs_; 194532de5f53763125925e078498250f7e73a88de9edzhanyong.wan 194632de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(ContainerEqMatcher); 19476a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan}; 19486a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan 194933605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// Holds the logic common to ContainsMatcherImpl and EachMatcherImpl. 1950b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wantemplate <typename Container> 195133605ba45417979cff7254c1196dfee65a7275b3zhanyong.wanclass QuantifierMatcherImpl : public MatcherInterface<Container> { 1952b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan public: 195302f7106557fde1f1075dc53d65ef1f7a11851f93zhanyong.wan typedef GTEST_REMOVE_CONST_(GTEST_REMOVE_REFERENCE_(Container)) RawContainer; 1954b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan typedef StlContainerView<RawContainer> View; 1955b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan typedef typename View::type StlContainer; 1956b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan typedef typename View::const_reference StlContainerReference; 1957b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan typedef typename StlContainer::value_type Element; 1958b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan 1959b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan template <typename InnerMatcher> 196033605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan explicit QuantifierMatcherImpl(InnerMatcher inner_matcher) 1961b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan : inner_matcher_( 196233605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan testing::SafeMatcherCast<const Element&>(inner_matcher)) {} 196333605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan 196433605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan // Checks whether: 196533605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan // * All elements in the container match, if all_elements_should_match. 196633605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan // * Any element in the container matches, if !all_elements_should_match. 196733605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan bool MatchAndExplainImpl(bool all_elements_should_match, 196833605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan Container container, 196933605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan MatchResultListener* listener) const { 197033605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan StlContainerReference stl_container = View::ConstReference(container); 197133605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan size_t i = 0; 197233605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan for (typename StlContainer::const_iterator it = stl_container.begin(); 197333605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan it != stl_container.end(); ++it, ++i) { 197433605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan StringMatchResultListener inner_listener; 197533605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan const bool matches = inner_matcher_.MatchAndExplain(*it, &inner_listener); 197633605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan 197733605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan if (matches != all_elements_should_match) { 197833605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan *listener << "whose element #" << i 197933605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan << (matches ? " matches" : " doesn't match"); 198033605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan PrintIfNotEmpty(inner_listener.str(), listener->stream()); 198133605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan return !all_elements_should_match; 198233605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan } 198333605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan } 198433605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan return all_elements_should_match; 198533605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan } 198633605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan 198733605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan protected: 198833605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan const Matcher<const Element&> inner_matcher_; 198933605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan 199033605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan GTEST_DISALLOW_ASSIGN_(QuantifierMatcherImpl); 199133605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan}; 199233605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan 199333605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// Implements Contains(element_matcher) for the given argument type Container. 199433605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// Symmetric to EachMatcherImpl. 199533605ba45417979cff7254c1196dfee65a7275b3zhanyong.wantemplate <typename Container> 199633605ba45417979cff7254c1196dfee65a7275b3zhanyong.wanclass ContainsMatcherImpl : public QuantifierMatcherImpl<Container> { 199733605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan public: 199833605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan template <typename InnerMatcher> 199933605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan explicit ContainsMatcherImpl(InnerMatcher inner_matcher) 200033605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan : QuantifierMatcherImpl<Container>(inner_matcher) {} 2001b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan 2002b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan // Describes what this matcher does. 2003b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan virtual void DescribeTo(::std::ostream* os) const { 2004b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan *os << "contains at least one element that "; 200533605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan this->inner_matcher_.DescribeTo(os); 2006b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan } 2007b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan 2008b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan virtual void DescribeNegationTo(::std::ostream* os) const { 2009b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan *os << "doesn't contain any element that "; 201033605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan this->inner_matcher_.DescribeTo(os); 2011b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan } 2012b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan 2013821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan virtual bool MatchAndExplain(Container container, 2014821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan MatchResultListener* listener) const { 201533605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan return this->MatchAndExplainImpl(false, container, listener); 2016b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan } 2017b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan 2018b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan private: 201932de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(ContainsMatcherImpl); 2020b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan}; 2021b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan 202233605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// Implements Each(element_matcher) for the given argument type Container. 202333605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// Symmetric to ContainsMatcherImpl. 202433605ba45417979cff7254c1196dfee65a7275b3zhanyong.wantemplate <typename Container> 202533605ba45417979cff7254c1196dfee65a7275b3zhanyong.wanclass EachMatcherImpl : public QuantifierMatcherImpl<Container> { 202633605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan public: 202733605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan template <typename InnerMatcher> 202833605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan explicit EachMatcherImpl(InnerMatcher inner_matcher) 202933605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan : QuantifierMatcherImpl<Container>(inner_matcher) {} 203033605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan 203133605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan // Describes what this matcher does. 203233605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan virtual void DescribeTo(::std::ostream* os) const { 203333605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan *os << "only contains elements that "; 203433605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan this->inner_matcher_.DescribeTo(os); 203533605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan } 203633605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan 203733605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan virtual void DescribeNegationTo(::std::ostream* os) const { 203833605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan *os << "contains some element that "; 203933605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan this->inner_matcher_.DescribeNegationTo(os); 204033605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan } 204133605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan 204233605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan virtual bool MatchAndExplain(Container container, 204333605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan MatchResultListener* listener) const { 204433605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan return this->MatchAndExplainImpl(true, container, listener); 204533605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan } 204633605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan 204733605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan private: 204833605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan GTEST_DISALLOW_ASSIGN_(EachMatcherImpl); 204933605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan}; 205033605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan 2051b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan// Implements polymorphic Contains(element_matcher). 2052b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wantemplate <typename M> 2053b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wanclass ContainsMatcher { 2054b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan public: 2055b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan explicit ContainsMatcher(M m) : inner_matcher_(m) {} 2056b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan 2057b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan template <typename Container> 2058b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan operator Matcher<Container>() const { 2059b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan return MakeMatcher(new ContainsMatcherImpl<Container>(inner_matcher_)); 2060b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan } 2061b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan 2062b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan private: 2063b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan const M inner_matcher_; 206432de5f53763125925e078498250f7e73a88de9edzhanyong.wan 206532de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(ContainsMatcher); 2066b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan}; 2067b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan 206833605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// Implements polymorphic Each(element_matcher). 206933605ba45417979cff7254c1196dfee65a7275b3zhanyong.wantemplate <typename M> 207033605ba45417979cff7254c1196dfee65a7275b3zhanyong.wanclass EachMatcher { 207133605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan public: 207233605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan explicit EachMatcher(M m) : inner_matcher_(m) {} 207333605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan 207433605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan template <typename Container> 207533605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan operator Matcher<Container>() const { 207633605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan return MakeMatcher(new EachMatcherImpl<Container>(inner_matcher_)); 207733605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan } 207833605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan 207933605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan private: 208033605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan const M inner_matcher_; 208133605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan 208233605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan GTEST_DISALLOW_ASSIGN_(EachMatcher); 208333605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan}; 208433605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan 2085b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan// Implements Key(inner_matcher) for the given argument pair type. 2086b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan// Key(inner_matcher) matches an std::pair whose 'first' field matches 2087b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan// inner_matcher. For example, Contains(Key(Ge(5))) can be used to match an 2088b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan// std::map that contains at least one element whose key is >= 5. 2089b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wantemplate <typename PairType> 2090b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wanclass KeyMatcherImpl : public MatcherInterface<PairType> { 2091b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan public: 209202f7106557fde1f1075dc53d65ef1f7a11851f93zhanyong.wan typedef GTEST_REMOVE_CONST_(GTEST_REMOVE_REFERENCE_(PairType)) RawPairType; 2093b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan typedef typename RawPairType::first_type KeyType; 2094b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan 2095b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan template <typename InnerMatcher> 2096b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan explicit KeyMatcherImpl(InnerMatcher inner_matcher) 2097b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan : inner_matcher_( 2098b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan testing::SafeMatcherCast<const KeyType&>(inner_matcher)) { 2099b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan } 2100b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan 2101b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan // Returns true iff 'key_value.first' (the key) matches the inner matcher. 2102821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan virtual bool MatchAndExplain(PairType key_value, 2103821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan MatchResultListener* listener) const { 2104b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan StringMatchResultListener inner_listener; 2105b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan const bool match = inner_matcher_.MatchAndExplain(key_value.first, 2106b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan &inner_listener); 2107b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan const internal::string explanation = inner_listener.str(); 2108b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan if (explanation != "") { 2109b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *listener << "whose first field is a value " << explanation; 2110b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan } 2111b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan return match; 2112b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan } 2113b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan 2114b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan // Describes what this matcher does. 2115b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan virtual void DescribeTo(::std::ostream* os) const { 2116b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan *os << "has a key that "; 2117b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan inner_matcher_.DescribeTo(os); 2118b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan } 2119b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan 2120b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan // Describes what the negation of this matcher does. 2121b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan virtual void DescribeNegationTo(::std::ostream* os) const { 2122b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan *os << "doesn't have a key that "; 2123b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan inner_matcher_.DescribeTo(os); 2124b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan } 2125b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan 2126b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan private: 2127b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan const Matcher<const KeyType&> inner_matcher_; 212832de5f53763125925e078498250f7e73a88de9edzhanyong.wan 212932de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(KeyMatcherImpl); 2130b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan}; 2131b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan 2132b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan// Implements polymorphic Key(matcher_for_key). 2133b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wantemplate <typename M> 2134b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wanclass KeyMatcher { 2135b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan public: 2136b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan explicit KeyMatcher(M m) : matcher_for_key_(m) {} 2137b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan 2138b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan template <typename PairType> 2139b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan operator Matcher<PairType>() const { 2140b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan return MakeMatcher(new KeyMatcherImpl<PairType>(matcher_for_key_)); 2141b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan } 2142b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan 2143b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan private: 2144b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan const M matcher_for_key_; 214532de5f53763125925e078498250f7e73a88de9edzhanyong.wan 214632de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(KeyMatcher); 2147b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan}; 2148b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan 2149f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan// Implements Pair(first_matcher, second_matcher) for the given argument pair 2150f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan// type with its two matchers. See Pair() function below. 2151f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wantemplate <typename PairType> 2152f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wanclass PairMatcherImpl : public MatcherInterface<PairType> { 2153f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan public: 215402f7106557fde1f1075dc53d65ef1f7a11851f93zhanyong.wan typedef GTEST_REMOVE_CONST_(GTEST_REMOVE_REFERENCE_(PairType)) RawPairType; 2155f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan typedef typename RawPairType::first_type FirstType; 2156f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan typedef typename RawPairType::second_type SecondType; 2157f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan 2158f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan template <typename FirstMatcher, typename SecondMatcher> 2159f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan PairMatcherImpl(FirstMatcher first_matcher, SecondMatcher second_matcher) 2160f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan : first_matcher_( 2161f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan testing::SafeMatcherCast<const FirstType&>(first_matcher)), 2162f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan second_matcher_( 2163f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan testing::SafeMatcherCast<const SecondType&>(second_matcher)) { 2164f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan } 2165f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan 2166f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan // Describes what this matcher does. 2167f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan virtual void DescribeTo(::std::ostream* os) const { 2168f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan *os << "has a first field that "; 2169f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan first_matcher_.DescribeTo(os); 2170f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan *os << ", and has a second field that "; 2171f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan second_matcher_.DescribeTo(os); 2172f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan } 2173f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan 2174f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan // Describes what the negation of this matcher does. 2175f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan virtual void DescribeNegationTo(::std::ostream* os) const { 2176f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan *os << "has a first field that "; 2177f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan first_matcher_.DescribeNegationTo(os); 2178f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan *os << ", or has a second field that "; 2179f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan second_matcher_.DescribeNegationTo(os); 2180f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan } 2181f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan 2182821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // Returns true iff 'a_pair.first' matches first_matcher and 'a_pair.second' 2183821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // matches second_matcher. 2184821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan virtual bool MatchAndExplain(PairType a_pair, 2185821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan MatchResultListener* listener) const { 2186676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan if (!listener->IsInterested()) { 2187676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan // If the listener is not interested, we don't need to construct the 2188676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan // explanation. 2189676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan return first_matcher_.Matches(a_pair.first) && 2190676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan second_matcher_.Matches(a_pair.second); 2191821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan } 2192676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan StringMatchResultListener first_inner_listener; 2193676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan if (!first_matcher_.MatchAndExplain(a_pair.first, 2194676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan &first_inner_listener)) { 2195676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan *listener << "whose first field does not match"; 2196b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan PrintIfNotEmpty(first_inner_listener.str(), listener->stream()); 2197821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan return false; 2198f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan } 2199676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan StringMatchResultListener second_inner_listener; 2200676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan if (!second_matcher_.MatchAndExplain(a_pair.second, 2201676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan &second_inner_listener)) { 2202676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan *listener << "whose second field does not match"; 2203b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan PrintIfNotEmpty(second_inner_listener.str(), listener->stream()); 2204821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan return false; 2205f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan } 2206676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan ExplainSuccess(first_inner_listener.str(), second_inner_listener.str(), 2207676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan listener); 2208821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan return true; 2209f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan } 2210f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan 2211f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan private: 2212676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan void ExplainSuccess(const internal::string& first_explanation, 2213676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan const internal::string& second_explanation, 2214676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan MatchResultListener* listener) const { 2215676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan *listener << "whose both fields match"; 2216676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan if (first_explanation != "") { 2217676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan *listener << ", where the first field is a value " << first_explanation; 2218676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan } 2219676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan if (second_explanation != "") { 2220676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan *listener << ", "; 2221676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan if (first_explanation != "") { 2222676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan *listener << "and "; 2223676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan } else { 2224676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan *listener << "where "; 2225676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan } 2226676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan *listener << "the second field is a value " << second_explanation; 2227676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan } 2228676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan } 2229676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan 2230f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan const Matcher<const FirstType&> first_matcher_; 2231f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan const Matcher<const SecondType&> second_matcher_; 223232de5f53763125925e078498250f7e73a88de9edzhanyong.wan 223332de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(PairMatcherImpl); 2234f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan}; 2235f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan 2236f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan// Implements polymorphic Pair(first_matcher, second_matcher). 2237f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wantemplate <typename FirstMatcher, typename SecondMatcher> 2238f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wanclass PairMatcher { 2239f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan public: 2240f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan PairMatcher(FirstMatcher first_matcher, SecondMatcher second_matcher) 2241f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan : first_matcher_(first_matcher), second_matcher_(second_matcher) {} 2242f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan 2243f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan template <typename PairType> 2244f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan operator Matcher<PairType> () const { 2245f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan return MakeMatcher( 2246f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan new PairMatcherImpl<PairType>( 2247f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan first_matcher_, second_matcher_)); 2248f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan } 2249f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan 2250f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan private: 2251f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan const FirstMatcher first_matcher_; 2252f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan const SecondMatcher second_matcher_; 225332de5f53763125925e078498250f7e73a88de9edzhanyong.wan 225432de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(PairMatcher); 2255f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan}; 2256f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan 22571afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan// Implements ElementsAre() and ElementsAreArray(). 22581afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wantemplate <typename Container> 22591afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wanclass ElementsAreMatcherImpl : public MatcherInterface<Container> { 22601afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan public: 226102f7106557fde1f1075dc53d65ef1f7a11851f93zhanyong.wan typedef GTEST_REMOVE_CONST_(GTEST_REMOVE_REFERENCE_(Container)) RawContainer; 22621afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan typedef internal::StlContainerView<RawContainer> View; 22631afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan typedef typename View::type StlContainer; 22641afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan typedef typename View::const_reference StlContainerReference; 22651afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan typedef typename StlContainer::value_type Element; 22661afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan 22671afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan // Constructs the matcher from a sequence of element values or 22681afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan // element matchers. 22691afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan template <typename InputIter> 227032de5f53763125925e078498250f7e73a88de9edzhanyong.wan ElementsAreMatcherImpl(InputIter first, size_t a_count) { 227132de5f53763125925e078498250f7e73a88de9edzhanyong.wan matchers_.reserve(a_count); 22721afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan InputIter it = first; 227332de5f53763125925e078498250f7e73a88de9edzhanyong.wan for (size_t i = 0; i != a_count; ++i, ++it) { 22741afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan matchers_.push_back(MatcherCast<const Element&>(*it)); 22751afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan } 22761afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan } 22771afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan 22781afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan // Describes what this matcher does. 22791afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan virtual void DescribeTo(::std::ostream* os) const { 22801afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan if (count() == 0) { 22811afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan *os << "is empty"; 22821afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan } else if (count() == 1) { 22831afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan *os << "has 1 element that "; 22841afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan matchers_[0].DescribeTo(os); 22851afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan } else { 22861afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan *os << "has " << Elements(count()) << " where\n"; 22871afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan for (size_t i = 0; i != count(); ++i) { 2288b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *os << "element #" << i << " "; 22891afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan matchers_[i].DescribeTo(os); 22901afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan if (i + 1 < count()) { 22911afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan *os << ",\n"; 22921afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan } 22931afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan } 22941afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan } 22951afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan } 22961afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan 22971afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan // Describes what the negation of this matcher does. 22981afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan virtual void DescribeNegationTo(::std::ostream* os) const { 22991afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan if (count() == 0) { 2300b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *os << "isn't empty"; 23011afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan return; 23021afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan } 23031afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan 2304b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *os << "doesn't have " << Elements(count()) << ", or\n"; 23051afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan for (size_t i = 0; i != count(); ++i) { 2306b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *os << "element #" << i << " "; 23071afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan matchers_[i].DescribeNegationTo(os); 23081afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan if (i + 1 < count()) { 23091afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan *os << ", or\n"; 23101afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan } 23111afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan } 23121afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan } 23131afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan 2314821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan virtual bool MatchAndExplain(Container container, 2315821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan MatchResultListener* listener) const { 23161afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan StlContainerReference stl_container = View::ConstReference(container); 2317821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan const size_t actual_count = stl_container.size(); 2318821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan if (actual_count != count()) { 2319821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // The element count doesn't match. If the container is empty, 2320821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // there's no need to explain anything as Google Mock already 2321821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // prints the empty container. Otherwise we just need to show 2322821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // how many elements there actually are. 2323821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan if (actual_count != 0) { 2324b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *listener << "which has " << Elements(actual_count); 23251afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan } 2326821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan return false; 2327821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan } 23281afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan 2329821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan typename StlContainer::const_iterator it = stl_container.begin(); 2330821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // explanations[i] is the explanation of the element at index i. 2331821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan std::vector<internal::string> explanations(count()); 2332821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan for (size_t i = 0; i != count(); ++it, ++i) { 2333821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan StringMatchResultListener s; 2334821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan if (matchers_[i].MatchAndExplain(*it, &s)) { 2335821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan explanations[i] = s.str(); 2336821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan } else { 2337821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // The container has the right size but the i-th element 2338821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // doesn't match its expectation. 2339b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *listener << "whose element #" << i << " doesn't match"; 2340b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan PrintIfNotEmpty(s.str(), listener->stream()); 2341821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan return false; 2342821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan } 2343821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan } 23441afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan 2345821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // Every element matches its expectation. We need to explain why 2346821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // (the obvious ones can be skipped). 2347821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan bool reason_printed = false; 2348821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan for (size_t i = 0; i != count(); ++i) { 2349821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan const internal::string& s = explanations[i]; 2350821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan if (!s.empty()) { 2351821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan if (reason_printed) { 2352b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *listener << ",\nand "; 23531afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan } 2354b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *listener << "whose element #" << i << " matches, " << s; 2355821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan reason_printed = true; 23561afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan } 23571afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan } 2358821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan 2359821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan return true; 23601afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan } 23611afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan 23621afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan private: 23631afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan static Message Elements(size_t count) { 23641afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan return Message() << count << (count == 1 ? " element" : " elements"); 23651afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan } 23661afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan 23671afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan size_t count() const { return matchers_.size(); } 23681afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan std::vector<Matcher<const Element&> > matchers_; 236932de5f53763125925e078498250f7e73a88de9edzhanyong.wan 237032de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(ElementsAreMatcherImpl); 23711afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan}; 23721afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan 23731afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan// Implements ElementsAre() of 0 arguments. 23741afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wanclass ElementsAreMatcher0 { 23751afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan public: 23761afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan ElementsAreMatcher0() {} 23771afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan 23781afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan template <typename Container> 23791afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan operator Matcher<Container>() const { 238002f7106557fde1f1075dc53d65ef1f7a11851f93zhanyong.wan typedef GTEST_REMOVE_CONST_(GTEST_REMOVE_REFERENCE_(Container)) 23811afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan RawContainer; 23821afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan typedef typename internal::StlContainerView<RawContainer>::type::value_type 23831afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan Element; 23841afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan 23851afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan const Matcher<const Element&>* const matchers = NULL; 23861afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan return MakeMatcher(new ElementsAreMatcherImpl<Container>(matchers, 0)); 23871afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan } 23881afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan}; 23891afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan 23901afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan// Implements ElementsAreArray(). 23911afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wantemplate <typename T> 23921afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wanclass ElementsAreArrayMatcher { 23931afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan public: 23941afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan ElementsAreArrayMatcher(const T* first, size_t count) : 23951afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan first_(first), count_(count) {} 23961afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan 23971afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan template <typename Container> 23981afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan operator Matcher<Container>() const { 239902f7106557fde1f1075dc53d65ef1f7a11851f93zhanyong.wan typedef GTEST_REMOVE_CONST_(GTEST_REMOVE_REFERENCE_(Container)) 24001afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan RawContainer; 24011afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan typedef typename internal::StlContainerView<RawContainer>::type::value_type 24021afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan Element; 24031afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan 24041afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan return MakeMatcher(new ElementsAreMatcherImpl<Container>(first_, count_)); 24051afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan } 24061afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan 24071afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan private: 24081afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan const T* const first_; 24091afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan const size_t count_; 241032de5f53763125925e078498250f7e73a88de9edzhanyong.wan 241132de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(ElementsAreArrayMatcher); 24121afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan}; 24131afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan 24141afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan// Constants denoting interpolations in a matcher description string. 24151afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wanconst int kTupleInterpolation = -1; // "%(*)s" 24161afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wanconst int kPercentInterpolation = -2; // "%%" 24171afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wanconst int kInvalidInterpolation = -3; // "%" followed by invalid text 24181afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan 24191afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan// Records the location and content of an interpolation. 24201afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wanstruct Interpolation { 24211afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan Interpolation(const char* start, const char* end, int param) 24221afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan : start_pos(start), end_pos(end), param_index(param) {} 24231afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan 24241afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan // Points to the start of the interpolation (the '%' character). 24251afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan const char* start_pos; 24261afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan // Points to the first character after the interpolation. 24271afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan const char* end_pos; 24281afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan // 0-based index of the interpolated matcher parameter; 24291afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan // kTupleInterpolation for "%(*)s"; kPercentInterpolation for "%%". 24301afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan int param_index; 24311afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan}; 24321afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan 24331afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wantypedef ::std::vector<Interpolation> Interpolations; 24341afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan 24351afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan// Parses a matcher description string and returns a vector of 24361afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan// interpolations that appear in the string; generates non-fatal 24371afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan// failures iff 'description' is an invalid matcher description. 24381afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan// 'param_names' is a NULL-terminated array of parameter names in the 24391afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan// order they appear in the MATCHER_P*() parameter list. 24401afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wanInterpolations ValidateMatcherDescription( 24411afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan const char* param_names[], const char* description); 24421afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan 24431afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan// Returns the actual matcher description, given the matcher name, 24441afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan// user-supplied description template string, interpolations in the 24451afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan// string, and the printed values of the matcher parameters. 24461afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wanstring FormatMatcherDescription( 24471afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan const char* matcher_name, const char* description, 24481afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan const Interpolations& interp, const Strings& param_values); 24491afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan 2450e35fdd936d133bf8a48de140a3c666897588a05shiqian} // namespace internal 2451e35fdd936d133bf8a48de140a3c666897588a05shiqian 2452e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements MatcherCast(). 2453e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T, typename M> 2454e35fdd936d133bf8a48de140a3c666897588a05shiqianinline Matcher<T> MatcherCast(M matcher) { 2455e35fdd936d133bf8a48de140a3c666897588a05shiqian return internal::MatcherCastImpl<T, M>::Cast(matcher); 2456e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2457e35fdd936d133bf8a48de140a3c666897588a05shiqian 2458e35fdd936d133bf8a48de140a3c666897588a05shiqian// _ is a matcher that matches anything of any type. 2459e35fdd936d133bf8a48de140a3c666897588a05shiqian// 2460e35fdd936d133bf8a48de140a3c666897588a05shiqian// This definition is fine as: 2461e35fdd936d133bf8a48de140a3c666897588a05shiqian// 2462e35fdd936d133bf8a48de140a3c666897588a05shiqian// 1. The C++ standard permits using the name _ in a namespace that 2463e35fdd936d133bf8a48de140a3c666897588a05shiqian// is not the global namespace or ::std. 2464e35fdd936d133bf8a48de140a3c666897588a05shiqian// 2. The AnythingMatcher class has no data member or constructor, 2465e35fdd936d133bf8a48de140a3c666897588a05shiqian// so it's OK to create global variables of this type. 2466e35fdd936d133bf8a48de140a3c666897588a05shiqian// 3. c-style has approved of using _ in this case. 2467e35fdd936d133bf8a48de140a3c666897588a05shiqianconst internal::AnythingMatcher _ = {}; 2468e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a matcher that matches any value of the given type T. 2469e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T> 2470e35fdd936d133bf8a48de140a3c666897588a05shiqianinline Matcher<T> A() { return MakeMatcher(new internal::AnyMatcherImpl<T>()); } 2471e35fdd936d133bf8a48de140a3c666897588a05shiqian 2472e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a matcher that matches any value of the given type T. 2473e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T> 2474e35fdd936d133bf8a48de140a3c666897588a05shiqianinline Matcher<T> An() { return A<T>(); } 2475e35fdd936d133bf8a48de140a3c666897588a05shiqian 2476e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a polymorphic matcher that matches anything equal to x. 2477e35fdd936d133bf8a48de140a3c666897588a05shiqian// Note: if the parameter of Eq() were declared as const T&, Eq("foo") 2478e35fdd936d133bf8a48de140a3c666897588a05shiqian// wouldn't compile. 2479e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T> 2480e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::EqMatcher<T> Eq(T x) { return internal::EqMatcher<T>(x); } 2481e35fdd936d133bf8a48de140a3c666897588a05shiqian 2482e35fdd936d133bf8a48de140a3c666897588a05shiqian// Constructs a Matcher<T> from a 'value' of type T. The constructed 2483e35fdd936d133bf8a48de140a3c666897588a05shiqian// matcher matches any value that's equal to 'value'. 2484e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T> 2485e35fdd936d133bf8a48de140a3c666897588a05shiqianMatcher<T>::Matcher(T value) { *this = Eq(value); } 2486e35fdd936d133bf8a48de140a3c666897588a05shiqian 2487e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a monomorphic matcher that matches anything with type Lhs 2488e35fdd936d133bf8a48de140a3c666897588a05shiqian// and equal to rhs. A user may need to use this instead of Eq(...) 2489e35fdd936d133bf8a48de140a3c666897588a05shiqian// in order to resolve an overloading ambiguity. 2490e35fdd936d133bf8a48de140a3c666897588a05shiqian// 2491e35fdd936d133bf8a48de140a3c666897588a05shiqian// TypedEq<T>(x) is just a convenient short-hand for Matcher<T>(Eq(x)) 2492e35fdd936d133bf8a48de140a3c666897588a05shiqian// or Matcher<T>(x), but more readable than the latter. 2493e35fdd936d133bf8a48de140a3c666897588a05shiqian// 2494e35fdd936d133bf8a48de140a3c666897588a05shiqian// We could define similar monomorphic matchers for other comparison 2495e35fdd936d133bf8a48de140a3c666897588a05shiqian// operations (e.g. TypedLt, TypedGe, and etc), but decided not to do 2496e35fdd936d133bf8a48de140a3c666897588a05shiqian// it yet as those are used much less than Eq() in practice. A user 2497e35fdd936d133bf8a48de140a3c666897588a05shiqian// can always write Matcher<T>(Lt(5)) to be explicit about the type, 2498e35fdd936d133bf8a48de140a3c666897588a05shiqian// for example. 2499e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Lhs, typename Rhs> 2500e35fdd936d133bf8a48de140a3c666897588a05shiqianinline Matcher<Lhs> TypedEq(const Rhs& rhs) { return Eq(rhs); } 2501e35fdd936d133bf8a48de140a3c666897588a05shiqian 2502e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a polymorphic matcher that matches anything >= x. 2503e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Rhs> 2504e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::GeMatcher<Rhs> Ge(Rhs x) { 2505e35fdd936d133bf8a48de140a3c666897588a05shiqian return internal::GeMatcher<Rhs>(x); 2506e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2507e35fdd936d133bf8a48de140a3c666897588a05shiqian 2508e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a polymorphic matcher that matches anything > x. 2509e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Rhs> 2510e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::GtMatcher<Rhs> Gt(Rhs x) { 2511e35fdd936d133bf8a48de140a3c666897588a05shiqian return internal::GtMatcher<Rhs>(x); 2512e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2513e35fdd936d133bf8a48de140a3c666897588a05shiqian 2514e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a polymorphic matcher that matches anything <= x. 2515e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Rhs> 2516e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::LeMatcher<Rhs> Le(Rhs x) { 2517e35fdd936d133bf8a48de140a3c666897588a05shiqian return internal::LeMatcher<Rhs>(x); 2518e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2519e35fdd936d133bf8a48de140a3c666897588a05shiqian 2520e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a polymorphic matcher that matches anything < x. 2521e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Rhs> 2522e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::LtMatcher<Rhs> Lt(Rhs x) { 2523e35fdd936d133bf8a48de140a3c666897588a05shiqian return internal::LtMatcher<Rhs>(x); 2524e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2525e35fdd936d133bf8a48de140a3c666897588a05shiqian 2526e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a polymorphic matcher that matches anything != x. 2527e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Rhs> 2528e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::NeMatcher<Rhs> Ne(Rhs x) { 2529e35fdd936d133bf8a48de140a3c666897588a05shiqian return internal::NeMatcher<Rhs>(x); 2530e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2531e35fdd936d133bf8a48de140a3c666897588a05shiqian 25322d970ee3bad530703ff24bc3a011390b45cdd293zhanyong.wan// Creates a polymorphic matcher that matches any NULL pointer. 25332d970ee3bad530703ff24bc3a011390b45cdd293zhanyong.waninline PolymorphicMatcher<internal::IsNullMatcher > IsNull() { 25342d970ee3bad530703ff24bc3a011390b45cdd293zhanyong.wan return MakePolymorphicMatcher(internal::IsNullMatcher()); 25352d970ee3bad530703ff24bc3a011390b45cdd293zhanyong.wan} 25362d970ee3bad530703ff24bc3a011390b45cdd293zhanyong.wan 2537e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a polymorphic matcher that matches any non-NULL pointer. 2538e35fdd936d133bf8a48de140a3c666897588a05shiqian// This is convenient as Not(NULL) doesn't compile (the compiler 2539e35fdd936d133bf8a48de140a3c666897588a05shiqian// thinks that that expression is comparing a pointer with an integer). 2540e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::NotNullMatcher > NotNull() { 2541e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::NotNullMatcher()); 2542e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2543e35fdd936d133bf8a48de140a3c666897588a05shiqian 2544e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a polymorphic matcher that matches any argument that 2545e35fdd936d133bf8a48de140a3c666897588a05shiqian// references variable x. 2546e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T> 2547e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::RefMatcher<T&> Ref(T& x) { // NOLINT 2548e35fdd936d133bf8a48de140a3c666897588a05shiqian return internal::RefMatcher<T&>(x); 2549e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2550e35fdd936d133bf8a48de140a3c666897588a05shiqian 2551e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a matcher that matches any double argument approximately 2552e35fdd936d133bf8a48de140a3c666897588a05shiqian// equal to rhs, where two NANs are considered unequal. 2553e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::FloatingEqMatcher<double> DoubleEq(double rhs) { 2554e35fdd936d133bf8a48de140a3c666897588a05shiqian return internal::FloatingEqMatcher<double>(rhs, false); 2555e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2556e35fdd936d133bf8a48de140a3c666897588a05shiqian 2557e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a matcher that matches any double argument approximately 2558e35fdd936d133bf8a48de140a3c666897588a05shiqian// equal to rhs, including NaN values when rhs is NaN. 2559e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::FloatingEqMatcher<double> NanSensitiveDoubleEq(double rhs) { 2560e35fdd936d133bf8a48de140a3c666897588a05shiqian return internal::FloatingEqMatcher<double>(rhs, true); 2561e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2562e35fdd936d133bf8a48de140a3c666897588a05shiqian 2563e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a matcher that matches any float argument approximately 2564e35fdd936d133bf8a48de140a3c666897588a05shiqian// equal to rhs, where two NANs are considered unequal. 2565e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::FloatingEqMatcher<float> FloatEq(float rhs) { 2566e35fdd936d133bf8a48de140a3c666897588a05shiqian return internal::FloatingEqMatcher<float>(rhs, false); 2567e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2568e35fdd936d133bf8a48de140a3c666897588a05shiqian 2569e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a matcher that matches any double argument approximately 2570e35fdd936d133bf8a48de140a3c666897588a05shiqian// equal to rhs, including NaN values when rhs is NaN. 2571e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::FloatingEqMatcher<float> NanSensitiveFloatEq(float rhs) { 2572e35fdd936d133bf8a48de140a3c666897588a05shiqian return internal::FloatingEqMatcher<float>(rhs, true); 2573e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2574e35fdd936d133bf8a48de140a3c666897588a05shiqian 2575e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a matcher that matches a pointer (raw or smart) that points 2576e35fdd936d133bf8a48de140a3c666897588a05shiqian// to a value that matches inner_matcher. 2577e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename InnerMatcher> 2578e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::PointeeMatcher<InnerMatcher> Pointee( 2579e35fdd936d133bf8a48de140a3c666897588a05shiqian const InnerMatcher& inner_matcher) { 2580e35fdd936d133bf8a48de140a3c666897588a05shiqian return internal::PointeeMatcher<InnerMatcher>(inner_matcher); 2581e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2582e35fdd936d133bf8a48de140a3c666897588a05shiqian 2583e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a matcher that matches an object whose given field matches 2584e35fdd936d133bf8a48de140a3c666897588a05shiqian// 'matcher'. For example, 2585e35fdd936d133bf8a48de140a3c666897588a05shiqian// Field(&Foo::number, Ge(5)) 2586e35fdd936d133bf8a48de140a3c666897588a05shiqian// matches a Foo object x iff x.number >= 5. 2587e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Class, typename FieldType, typename FieldMatcher> 2588e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher< 2589e35fdd936d133bf8a48de140a3c666897588a05shiqian internal::FieldMatcher<Class, FieldType> > Field( 2590e35fdd936d133bf8a48de140a3c666897588a05shiqian FieldType Class::*field, const FieldMatcher& matcher) { 2591e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher( 2592e35fdd936d133bf8a48de140a3c666897588a05shiqian internal::FieldMatcher<Class, FieldType>( 2593e35fdd936d133bf8a48de140a3c666897588a05shiqian field, MatcherCast<const FieldType&>(matcher))); 2594e35fdd936d133bf8a48de140a3c666897588a05shiqian // The call to MatcherCast() is required for supporting inner 2595e35fdd936d133bf8a48de140a3c666897588a05shiqian // matchers of compatible types. For example, it allows 2596e35fdd936d133bf8a48de140a3c666897588a05shiqian // Field(&Foo::bar, m) 2597e35fdd936d133bf8a48de140a3c666897588a05shiqian // to compile where bar is an int32 and m is a matcher for int64. 2598e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2599e35fdd936d133bf8a48de140a3c666897588a05shiqian 2600e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a matcher that matches an object whose given property 2601e35fdd936d133bf8a48de140a3c666897588a05shiqian// matches 'matcher'. For example, 2602e35fdd936d133bf8a48de140a3c666897588a05shiqian// Property(&Foo::str, StartsWith("hi")) 2603e35fdd936d133bf8a48de140a3c666897588a05shiqian// matches a Foo object x iff x.str() starts with "hi". 2604e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Class, typename PropertyType, typename PropertyMatcher> 2605e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher< 2606e35fdd936d133bf8a48de140a3c666897588a05shiqian internal::PropertyMatcher<Class, PropertyType> > Property( 2607e35fdd936d133bf8a48de140a3c666897588a05shiqian PropertyType (Class::*property)() const, const PropertyMatcher& matcher) { 2608e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher( 2609e35fdd936d133bf8a48de140a3c666897588a05shiqian internal::PropertyMatcher<Class, PropertyType>( 2610e35fdd936d133bf8a48de140a3c666897588a05shiqian property, 261102f7106557fde1f1075dc53d65ef1f7a11851f93zhanyong.wan MatcherCast<GTEST_REFERENCE_TO_CONST_(PropertyType)>(matcher))); 2612e35fdd936d133bf8a48de140a3c666897588a05shiqian // The call to MatcherCast() is required for supporting inner 2613e35fdd936d133bf8a48de140a3c666897588a05shiqian // matchers of compatible types. For example, it allows 2614e35fdd936d133bf8a48de140a3c666897588a05shiqian // Property(&Foo::bar, m) 2615e35fdd936d133bf8a48de140a3c666897588a05shiqian // to compile where bar() returns an int32 and m is a matcher for int64. 2616e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2617e35fdd936d133bf8a48de140a3c666897588a05shiqian 2618e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a matcher that matches an object iff the result of applying 2619e35fdd936d133bf8a48de140a3c666897588a05shiqian// a callable to x matches 'matcher'. 2620e35fdd936d133bf8a48de140a3c666897588a05shiqian// For example, 2621e35fdd936d133bf8a48de140a3c666897588a05shiqian// ResultOf(f, StartsWith("hi")) 2622e35fdd936d133bf8a48de140a3c666897588a05shiqian// matches a Foo object x iff f(x) starts with "hi". 2623e35fdd936d133bf8a48de140a3c666897588a05shiqian// callable parameter can be a function, function pointer, or a functor. 2624e35fdd936d133bf8a48de140a3c666897588a05shiqian// Callable has to satisfy the following conditions: 2625e35fdd936d133bf8a48de140a3c666897588a05shiqian// * It is required to keep no state affecting the results of 2626e35fdd936d133bf8a48de140a3c666897588a05shiqian// the calls on it and make no assumptions about how many calls 2627e35fdd936d133bf8a48de140a3c666897588a05shiqian// will be made. Any state it keeps must be protected from the 2628e35fdd936d133bf8a48de140a3c666897588a05shiqian// concurrent access. 2629e35fdd936d133bf8a48de140a3c666897588a05shiqian// * If it is a function object, it has to define type result_type. 2630e35fdd936d133bf8a48de140a3c666897588a05shiqian// We recommend deriving your functor classes from std::unary_function. 2631e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Callable, typename ResultOfMatcher> 2632e35fdd936d133bf8a48de140a3c666897588a05shiqianinternal::ResultOfMatcher<Callable> ResultOf( 2633e35fdd936d133bf8a48de140a3c666897588a05shiqian Callable callable, const ResultOfMatcher& matcher) { 2634e35fdd936d133bf8a48de140a3c666897588a05shiqian return internal::ResultOfMatcher<Callable>( 2635e35fdd936d133bf8a48de140a3c666897588a05shiqian callable, 2636e35fdd936d133bf8a48de140a3c666897588a05shiqian MatcherCast<typename internal::CallableTraits<Callable>::ResultType>( 2637e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher)); 2638e35fdd936d133bf8a48de140a3c666897588a05shiqian // The call to MatcherCast() is required for supporting inner 2639e35fdd936d133bf8a48de140a3c666897588a05shiqian // matchers of compatible types. For example, it allows 2640e35fdd936d133bf8a48de140a3c666897588a05shiqian // ResultOf(Function, m) 2641e35fdd936d133bf8a48de140a3c666897588a05shiqian // to compile where Function() returns an int32 and m is a matcher for int64. 2642e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2643e35fdd936d133bf8a48de140a3c666897588a05shiqian 2644e35fdd936d133bf8a48de140a3c666897588a05shiqian// String matchers. 2645e35fdd936d133bf8a48de140a3c666897588a05shiqian 2646e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matches a string equal to str. 2647e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::StrEqualityMatcher<internal::string> > 2648e35fdd936d133bf8a48de140a3c666897588a05shiqian StrEq(const internal::string& str) { 2649e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::StrEqualityMatcher<internal::string>( 2650e35fdd936d133bf8a48de140a3c666897588a05shiqian str, true, true)); 2651e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2652e35fdd936d133bf8a48de140a3c666897588a05shiqian 2653e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matches a string not equal to str. 2654e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::StrEqualityMatcher<internal::string> > 2655e35fdd936d133bf8a48de140a3c666897588a05shiqian StrNe(const internal::string& str) { 2656e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::StrEqualityMatcher<internal::string>( 2657e35fdd936d133bf8a48de140a3c666897588a05shiqian str, false, true)); 2658e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2659e35fdd936d133bf8a48de140a3c666897588a05shiqian 2660e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matches a string equal to str, ignoring case. 2661e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::StrEqualityMatcher<internal::string> > 2662e35fdd936d133bf8a48de140a3c666897588a05shiqian StrCaseEq(const internal::string& str) { 2663e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::StrEqualityMatcher<internal::string>( 2664e35fdd936d133bf8a48de140a3c666897588a05shiqian str, true, false)); 2665e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2666e35fdd936d133bf8a48de140a3c666897588a05shiqian 2667e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matches a string not equal to str, ignoring case. 2668e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::StrEqualityMatcher<internal::string> > 2669e35fdd936d133bf8a48de140a3c666897588a05shiqian StrCaseNe(const internal::string& str) { 2670e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::StrEqualityMatcher<internal::string>( 2671e35fdd936d133bf8a48de140a3c666897588a05shiqian str, false, false)); 2672e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2673e35fdd936d133bf8a48de140a3c666897588a05shiqian 2674e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a matcher that matches any string, std::string, or C string 2675e35fdd936d133bf8a48de140a3c666897588a05shiqian// that contains the given substring. 2676e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::HasSubstrMatcher<internal::string> > 2677e35fdd936d133bf8a48de140a3c666897588a05shiqian HasSubstr(const internal::string& substring) { 2678e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::HasSubstrMatcher<internal::string>( 2679e35fdd936d133bf8a48de140a3c666897588a05shiqian substring)); 2680e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2681e35fdd936d133bf8a48de140a3c666897588a05shiqian 2682e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matches a string that starts with 'prefix' (case-sensitive). 2683e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::StartsWithMatcher<internal::string> > 2684e35fdd936d133bf8a48de140a3c666897588a05shiqian StartsWith(const internal::string& prefix) { 2685e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::StartsWithMatcher<internal::string>( 2686e35fdd936d133bf8a48de140a3c666897588a05shiqian prefix)); 2687e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2688e35fdd936d133bf8a48de140a3c666897588a05shiqian 2689e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matches a string that ends with 'suffix' (case-sensitive). 2690e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::EndsWithMatcher<internal::string> > 2691e35fdd936d133bf8a48de140a3c666897588a05shiqian EndsWith(const internal::string& suffix) { 2692e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::EndsWithMatcher<internal::string>( 2693e35fdd936d133bf8a48de140a3c666897588a05shiqian suffix)); 2694e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2695e35fdd936d133bf8a48de140a3c666897588a05shiqian 2696e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matches a string that fully matches regular expression 'regex'. 2697e35fdd936d133bf8a48de140a3c666897588a05shiqian// The matcher takes ownership of 'regex'. 2698e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::MatchesRegexMatcher> MatchesRegex( 2699e35fdd936d133bf8a48de140a3c666897588a05shiqian const internal::RE* regex) { 2700e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::MatchesRegexMatcher(regex, true)); 2701e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2702e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::MatchesRegexMatcher> MatchesRegex( 2703e35fdd936d133bf8a48de140a3c666897588a05shiqian const internal::string& regex) { 2704e35fdd936d133bf8a48de140a3c666897588a05shiqian return MatchesRegex(new internal::RE(regex)); 2705e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2706e35fdd936d133bf8a48de140a3c666897588a05shiqian 2707e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matches a string that contains regular expression 'regex'. 2708e35fdd936d133bf8a48de140a3c666897588a05shiqian// The matcher takes ownership of 'regex'. 2709e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::MatchesRegexMatcher> ContainsRegex( 2710e35fdd936d133bf8a48de140a3c666897588a05shiqian const internal::RE* regex) { 2711e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::MatchesRegexMatcher(regex, false)); 2712e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2713e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::MatchesRegexMatcher> ContainsRegex( 2714e35fdd936d133bf8a48de140a3c666897588a05shiqian const internal::string& regex) { 2715e35fdd936d133bf8a48de140a3c666897588a05shiqian return ContainsRegex(new internal::RE(regex)); 2716e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2717e35fdd936d133bf8a48de140a3c666897588a05shiqian 2718e35fdd936d133bf8a48de140a3c666897588a05shiqian#if GTEST_HAS_GLOBAL_WSTRING || GTEST_HAS_STD_WSTRING 2719e35fdd936d133bf8a48de140a3c666897588a05shiqian// Wide string matchers. 2720e35fdd936d133bf8a48de140a3c666897588a05shiqian 2721e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matches a string equal to str. 2722e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::StrEqualityMatcher<internal::wstring> > 2723e35fdd936d133bf8a48de140a3c666897588a05shiqian StrEq(const internal::wstring& str) { 2724e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::StrEqualityMatcher<internal::wstring>( 2725e35fdd936d133bf8a48de140a3c666897588a05shiqian str, true, true)); 2726e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2727e35fdd936d133bf8a48de140a3c666897588a05shiqian 2728e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matches a string not equal to str. 2729e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::StrEqualityMatcher<internal::wstring> > 2730e35fdd936d133bf8a48de140a3c666897588a05shiqian StrNe(const internal::wstring& str) { 2731e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::StrEqualityMatcher<internal::wstring>( 2732e35fdd936d133bf8a48de140a3c666897588a05shiqian str, false, true)); 2733e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2734e35fdd936d133bf8a48de140a3c666897588a05shiqian 2735e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matches a string equal to str, ignoring case. 2736e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::StrEqualityMatcher<internal::wstring> > 2737e35fdd936d133bf8a48de140a3c666897588a05shiqian StrCaseEq(const internal::wstring& str) { 2738e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::StrEqualityMatcher<internal::wstring>( 2739e35fdd936d133bf8a48de140a3c666897588a05shiqian str, true, false)); 2740e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2741e35fdd936d133bf8a48de140a3c666897588a05shiqian 2742e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matches a string not equal to str, ignoring case. 2743e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::StrEqualityMatcher<internal::wstring> > 2744e35fdd936d133bf8a48de140a3c666897588a05shiqian StrCaseNe(const internal::wstring& str) { 2745e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::StrEqualityMatcher<internal::wstring>( 2746e35fdd936d133bf8a48de140a3c666897588a05shiqian str, false, false)); 2747e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2748e35fdd936d133bf8a48de140a3c666897588a05shiqian 2749e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a matcher that matches any wstring, std::wstring, or C wide string 2750e35fdd936d133bf8a48de140a3c666897588a05shiqian// that contains the given substring. 2751e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::HasSubstrMatcher<internal::wstring> > 2752e35fdd936d133bf8a48de140a3c666897588a05shiqian HasSubstr(const internal::wstring& substring) { 2753e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::HasSubstrMatcher<internal::wstring>( 2754e35fdd936d133bf8a48de140a3c666897588a05shiqian substring)); 2755e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2756e35fdd936d133bf8a48de140a3c666897588a05shiqian 2757e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matches a string that starts with 'prefix' (case-sensitive). 2758e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::StartsWithMatcher<internal::wstring> > 2759e35fdd936d133bf8a48de140a3c666897588a05shiqian StartsWith(const internal::wstring& prefix) { 2760e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::StartsWithMatcher<internal::wstring>( 2761e35fdd936d133bf8a48de140a3c666897588a05shiqian prefix)); 2762e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2763e35fdd936d133bf8a48de140a3c666897588a05shiqian 2764e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matches a string that ends with 'suffix' (case-sensitive). 2765e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::EndsWithMatcher<internal::wstring> > 2766e35fdd936d133bf8a48de140a3c666897588a05shiqian EndsWith(const internal::wstring& suffix) { 2767e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::EndsWithMatcher<internal::wstring>( 2768e35fdd936d133bf8a48de140a3c666897588a05shiqian suffix)); 2769e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2770e35fdd936d133bf8a48de140a3c666897588a05shiqian 2771e35fdd936d133bf8a48de140a3c666897588a05shiqian#endif // GTEST_HAS_GLOBAL_WSTRING || GTEST_HAS_STD_WSTRING 2772e35fdd936d133bf8a48de140a3c666897588a05shiqian 2773e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a polymorphic matcher that matches a 2-tuple where the 2774e35fdd936d133bf8a48de140a3c666897588a05shiqian// first field == the second field. 2775e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::Eq2Matcher Eq() { return internal::Eq2Matcher(); } 2776e35fdd936d133bf8a48de140a3c666897588a05shiqian 2777e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a polymorphic matcher that matches a 2-tuple where the 2778e35fdd936d133bf8a48de140a3c666897588a05shiqian// first field >= the second field. 2779e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::Ge2Matcher Ge() { return internal::Ge2Matcher(); } 2780e35fdd936d133bf8a48de140a3c666897588a05shiqian 2781e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a polymorphic matcher that matches a 2-tuple where the 2782e35fdd936d133bf8a48de140a3c666897588a05shiqian// first field > the second field. 2783e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::Gt2Matcher Gt() { return internal::Gt2Matcher(); } 2784e35fdd936d133bf8a48de140a3c666897588a05shiqian 2785e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a polymorphic matcher that matches a 2-tuple where the 2786e35fdd936d133bf8a48de140a3c666897588a05shiqian// first field <= the second field. 2787e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::Le2Matcher Le() { return internal::Le2Matcher(); } 2788e35fdd936d133bf8a48de140a3c666897588a05shiqian 2789e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a polymorphic matcher that matches a 2-tuple where the 2790e35fdd936d133bf8a48de140a3c666897588a05shiqian// first field < the second field. 2791e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::Lt2Matcher Lt() { return internal::Lt2Matcher(); } 2792e35fdd936d133bf8a48de140a3c666897588a05shiqian 2793e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a polymorphic matcher that matches a 2-tuple where the 2794e35fdd936d133bf8a48de140a3c666897588a05shiqian// first field != the second field. 2795e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::Ne2Matcher Ne() { return internal::Ne2Matcher(); } 2796e35fdd936d133bf8a48de140a3c666897588a05shiqian 2797e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a matcher that matches any value of type T that m doesn't 2798e35fdd936d133bf8a48de140a3c666897588a05shiqian// match. 2799e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename InnerMatcher> 2800e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::NotMatcher<InnerMatcher> Not(InnerMatcher m) { 2801e35fdd936d133bf8a48de140a3c666897588a05shiqian return internal::NotMatcher<InnerMatcher>(m); 2802e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2803e35fdd936d133bf8a48de140a3c666897588a05shiqian 2804e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a matcher that matches any value that matches all of the 2805e35fdd936d133bf8a48de140a3c666897588a05shiqian// given matchers. 2806e35fdd936d133bf8a48de140a3c666897588a05shiqian// 2807e35fdd936d133bf8a48de140a3c666897588a05shiqian// For now we only support up to 5 matchers. Support for more 2808e35fdd936d133bf8a48de140a3c666897588a05shiqian// matchers can be added as needed, or the user can use nested 2809e35fdd936d133bf8a48de140a3c666897588a05shiqian// AllOf()s. 2810e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Matcher1, typename Matcher2> 2811e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::BothOfMatcher<Matcher1, Matcher2> 2812e35fdd936d133bf8a48de140a3c666897588a05shiqianAllOf(Matcher1 m1, Matcher2 m2) { 2813e35fdd936d133bf8a48de140a3c666897588a05shiqian return internal::BothOfMatcher<Matcher1, Matcher2>(m1, m2); 2814e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2815e35fdd936d133bf8a48de140a3c666897588a05shiqian 2816e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Matcher1, typename Matcher2, typename Matcher3> 2817e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::BothOfMatcher<Matcher1, 2818e35fdd936d133bf8a48de140a3c666897588a05shiqian internal::BothOfMatcher<Matcher2, Matcher3> > 2819e35fdd936d133bf8a48de140a3c666897588a05shiqianAllOf(Matcher1 m1, Matcher2 m2, Matcher3 m3) { 2820e35fdd936d133bf8a48de140a3c666897588a05shiqian return AllOf(m1, AllOf(m2, m3)); 2821e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2822e35fdd936d133bf8a48de140a3c666897588a05shiqian 2823e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Matcher1, typename Matcher2, typename Matcher3, 2824e35fdd936d133bf8a48de140a3c666897588a05shiqian typename Matcher4> 2825e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::BothOfMatcher<Matcher1, 2826e35fdd936d133bf8a48de140a3c666897588a05shiqian internal::BothOfMatcher<Matcher2, 2827e35fdd936d133bf8a48de140a3c666897588a05shiqian internal::BothOfMatcher<Matcher3, Matcher4> > > 2828e35fdd936d133bf8a48de140a3c666897588a05shiqianAllOf(Matcher1 m1, Matcher2 m2, Matcher3 m3, Matcher4 m4) { 2829e35fdd936d133bf8a48de140a3c666897588a05shiqian return AllOf(m1, AllOf(m2, m3, m4)); 2830e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2831e35fdd936d133bf8a48de140a3c666897588a05shiqian 2832e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Matcher1, typename Matcher2, typename Matcher3, 2833e35fdd936d133bf8a48de140a3c666897588a05shiqian typename Matcher4, typename Matcher5> 2834e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::BothOfMatcher<Matcher1, 2835e35fdd936d133bf8a48de140a3c666897588a05shiqian internal::BothOfMatcher<Matcher2, 2836e35fdd936d133bf8a48de140a3c666897588a05shiqian internal::BothOfMatcher<Matcher3, 2837e35fdd936d133bf8a48de140a3c666897588a05shiqian internal::BothOfMatcher<Matcher4, Matcher5> > > > 2838e35fdd936d133bf8a48de140a3c666897588a05shiqianAllOf(Matcher1 m1, Matcher2 m2, Matcher3 m3, Matcher4 m4, Matcher5 m5) { 2839e35fdd936d133bf8a48de140a3c666897588a05shiqian return AllOf(m1, AllOf(m2, m3, m4, m5)); 2840e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2841e35fdd936d133bf8a48de140a3c666897588a05shiqian 2842e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a matcher that matches any value that matches at least one 2843e35fdd936d133bf8a48de140a3c666897588a05shiqian// of the given matchers. 2844e35fdd936d133bf8a48de140a3c666897588a05shiqian// 2845e35fdd936d133bf8a48de140a3c666897588a05shiqian// For now we only support up to 5 matchers. Support for more 2846e35fdd936d133bf8a48de140a3c666897588a05shiqian// matchers can be added as needed, or the user can use nested 2847e35fdd936d133bf8a48de140a3c666897588a05shiqian// AnyOf()s. 2848e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Matcher1, typename Matcher2> 2849e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::EitherOfMatcher<Matcher1, Matcher2> 2850e35fdd936d133bf8a48de140a3c666897588a05shiqianAnyOf(Matcher1 m1, Matcher2 m2) { 2851e35fdd936d133bf8a48de140a3c666897588a05shiqian return internal::EitherOfMatcher<Matcher1, Matcher2>(m1, m2); 2852e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2853e35fdd936d133bf8a48de140a3c666897588a05shiqian 2854e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Matcher1, typename Matcher2, typename Matcher3> 2855e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::EitherOfMatcher<Matcher1, 2856e35fdd936d133bf8a48de140a3c666897588a05shiqian internal::EitherOfMatcher<Matcher2, Matcher3> > 2857e35fdd936d133bf8a48de140a3c666897588a05shiqianAnyOf(Matcher1 m1, Matcher2 m2, Matcher3 m3) { 2858e35fdd936d133bf8a48de140a3c666897588a05shiqian return AnyOf(m1, AnyOf(m2, m3)); 2859e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2860e35fdd936d133bf8a48de140a3c666897588a05shiqian 2861e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Matcher1, typename Matcher2, typename Matcher3, 2862e35fdd936d133bf8a48de140a3c666897588a05shiqian typename Matcher4> 2863e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::EitherOfMatcher<Matcher1, 2864e35fdd936d133bf8a48de140a3c666897588a05shiqian internal::EitherOfMatcher<Matcher2, 2865e35fdd936d133bf8a48de140a3c666897588a05shiqian internal::EitherOfMatcher<Matcher3, Matcher4> > > 2866e35fdd936d133bf8a48de140a3c666897588a05shiqianAnyOf(Matcher1 m1, Matcher2 m2, Matcher3 m3, Matcher4 m4) { 2867e35fdd936d133bf8a48de140a3c666897588a05shiqian return AnyOf(m1, AnyOf(m2, m3, m4)); 2868e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2869e35fdd936d133bf8a48de140a3c666897588a05shiqian 2870e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Matcher1, typename Matcher2, typename Matcher3, 2871e35fdd936d133bf8a48de140a3c666897588a05shiqian typename Matcher4, typename Matcher5> 2872e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::EitherOfMatcher<Matcher1, 2873e35fdd936d133bf8a48de140a3c666897588a05shiqian internal::EitherOfMatcher<Matcher2, 2874e35fdd936d133bf8a48de140a3c666897588a05shiqian internal::EitherOfMatcher<Matcher3, 2875e35fdd936d133bf8a48de140a3c666897588a05shiqian internal::EitherOfMatcher<Matcher4, Matcher5> > > > 2876e35fdd936d133bf8a48de140a3c666897588a05shiqianAnyOf(Matcher1 m1, Matcher2 m2, Matcher3 m3, Matcher4 m4, Matcher5 m5) { 2877e35fdd936d133bf8a48de140a3c666897588a05shiqian return AnyOf(m1, AnyOf(m2, m3, m4, m5)); 2878e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2879e35fdd936d133bf8a48de140a3c666897588a05shiqian 2880e35fdd936d133bf8a48de140a3c666897588a05shiqian// Returns a matcher that matches anything that satisfies the given 2881e35fdd936d133bf8a48de140a3c666897588a05shiqian// predicate. The predicate can be any unary function or functor 2882e35fdd936d133bf8a48de140a3c666897588a05shiqian// whose return type can be implicitly converted to bool. 2883e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Predicate> 2884e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::TrulyMatcher<Predicate> > 2885e35fdd936d133bf8a48de140a3c666897588a05shiqianTruly(Predicate pred) { 2886e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::TrulyMatcher<Predicate>(pred)); 2887e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2888e35fdd936d133bf8a48de140a3c666897588a05shiqian 28896a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan// Returns a matcher that matches an equal container. 28906a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan// This matcher behaves like Eq(), but in the event of mismatch lists the 28916a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan// values that are included in one container but not the other. (Duplicate 28926a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan// values and order differences are not explained.) 28936a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wantemplate <typename Container> 2894821133180ccdb9eb062548d964929ba3b354eb84zhanyong.waninline PolymorphicMatcher<internal::ContainerEqMatcher< // NOLINT 289502f7106557fde1f1075dc53d65ef1f7a11851f93zhanyong.wan GTEST_REMOVE_CONST_(Container)> > 28966a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan ContainerEq(const Container& rhs) { 2897b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan // This following line is for working around a bug in MSVC 8.0, 2898b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan // which causes Container to be a const type sometimes. 289902f7106557fde1f1075dc53d65ef1f7a11851f93zhanyong.wan typedef GTEST_REMOVE_CONST_(Container) RawContainer; 2900821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan return MakePolymorphicMatcher( 2901821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan internal::ContainerEqMatcher<RawContainer>(rhs)); 2902b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan} 2903b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan 2904b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan// Matches an STL-style container or a native array that contains at 2905b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan// least one element matching the given value or matcher. 2906b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan// 2907b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan// Examples: 2908b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan// ::std::set<int> page_ids; 2909b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan// page_ids.insert(3); 2910b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan// page_ids.insert(1); 2911b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan// EXPECT_THAT(page_ids, Contains(1)); 2912b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan// EXPECT_THAT(page_ids, Contains(Gt(2))); 2913b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan// EXPECT_THAT(page_ids, Not(Contains(4))); 2914b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan// 2915b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan// ::std::map<int, size_t> page_lengths; 2916b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan// page_lengths[1] = 100; 29174019819dbb5369b1d638503523a04aaf7eb2a5adzhanyong.wan// EXPECT_THAT(page_lengths, 29184019819dbb5369b1d638503523a04aaf7eb2a5adzhanyong.wan// Contains(::std::pair<const int, size_t>(1, 100))); 2919b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan// 2920b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan// const char* user_ids[] = { "joe", "mike", "tom" }; 2921b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan// EXPECT_THAT(user_ids, Contains(Eq(::std::string("tom")))); 2922b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wantemplate <typename M> 2923b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.waninline internal::ContainsMatcher<M> Contains(M matcher) { 2924b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan return internal::ContainsMatcher<M>(matcher); 29256a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan} 29266a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan 292733605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// Matches an STL-style container or a native array that contains only 292833605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// elements matching the given value or matcher. 292933605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// 293033605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// Each(m) is semantically equivalent to Not(Contains(Not(m))). Only 293133605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// the messages are different. 293233605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// 293333605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// Examples: 293433605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// ::std::set<int> page_ids; 293533605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// // Each(m) matches an empty container, regardless of what m is. 293633605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// EXPECT_THAT(page_ids, Each(Eq(1))); 293733605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// EXPECT_THAT(page_ids, Each(Eq(77))); 293833605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// 293933605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// page_ids.insert(3); 294033605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// EXPECT_THAT(page_ids, Each(Gt(0))); 294133605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// EXPECT_THAT(page_ids, Not(Each(Gt(4)))); 294233605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// page_ids.insert(1); 294333605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// EXPECT_THAT(page_ids, Not(Each(Lt(2)))); 294433605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// 294533605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// ::std::map<int, size_t> page_lengths; 294633605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// page_lengths[1] = 100; 294733605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// page_lengths[2] = 200; 294833605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// page_lengths[3] = 300; 294933605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// EXPECT_THAT(page_lengths, Not(Each(Pair(1, 100)))); 295033605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// EXPECT_THAT(page_lengths, Each(Key(Le(3)))); 295133605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// 295233605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// const char* user_ids[] = { "joe", "mike", "tom" }; 295333605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// EXPECT_THAT(user_ids, Not(Each(Eq(::std::string("tom"))))); 295433605ba45417979cff7254c1196dfee65a7275b3zhanyong.wantemplate <typename M> 295533605ba45417979cff7254c1196dfee65a7275b3zhanyong.waninline internal::EachMatcher<M> Each(M matcher) { 295633605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan return internal::EachMatcher<M>(matcher); 295733605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan} 295833605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan 2959b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan// Key(inner_matcher) matches an std::pair whose 'first' field matches 2960b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan// inner_matcher. For example, Contains(Key(Ge(5))) can be used to match an 2961b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan// std::map that contains at least one element whose key is >= 5. 2962b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wantemplate <typename M> 2963b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.waninline internal::KeyMatcher<M> Key(M inner_matcher) { 2964b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan return internal::KeyMatcher<M>(inner_matcher); 2965b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan} 2966b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan 2967f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan// Pair(first_matcher, second_matcher) matches a std::pair whose 'first' field 2968f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan// matches first_matcher and whose 'second' field matches second_matcher. For 2969f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan// example, EXPECT_THAT(map_type, ElementsAre(Pair(Ge(5), "foo"))) can be used 2970f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan// to match a std::map<int, string> that contains exactly one element whose key 2971f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan// is >= 5 and whose value equals "foo". 2972f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wantemplate <typename FirstMatcher, typename SecondMatcher> 2973f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.waninline internal::PairMatcher<FirstMatcher, SecondMatcher> 2974f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wanPair(FirstMatcher first_matcher, SecondMatcher second_matcher) { 2975f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan return internal::PairMatcher<FirstMatcher, SecondMatcher>( 2976f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan first_matcher, second_matcher); 2977f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan} 2978f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan 2979e35fdd936d133bf8a48de140a3c666897588a05shiqian// Returns a predicate that is satisfied by anything that matches the 2980e35fdd936d133bf8a48de140a3c666897588a05shiqian// given matcher. 2981e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename M> 2982e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::MatcherAsPredicate<M> Matches(M matcher) { 2983e35fdd936d133bf8a48de140a3c666897588a05shiqian return internal::MatcherAsPredicate<M>(matcher); 2984e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2985e35fdd936d133bf8a48de140a3c666897588a05shiqian 2986b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan// Returns true iff the value matches the matcher. 2987b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wantemplate <typename T, typename M> 2988b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.waninline bool Value(const T& value, M matcher) { 2989b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan return testing::Matches(matcher)(value); 2990b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan} 2991b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan 299234b034c21ef4af7c0100194ed6f85910fc99debbzhanyong.wan// Matches the value against the given matcher and explains the match 299334b034c21ef4af7c0100194ed6f85910fc99debbzhanyong.wan// result to listener. 299434b034c21ef4af7c0100194ed6f85910fc99debbzhanyong.wantemplate <typename T, typename M> 2995a862f1de30ed1ef259bcec61c5939200b29c765czhanyong.waninline bool ExplainMatchResult( 299634b034c21ef4af7c0100194ed6f85910fc99debbzhanyong.wan M matcher, const T& value, MatchResultListener* listener) { 299734b034c21ef4af7c0100194ed6f85910fc99debbzhanyong.wan return SafeMatcherCast<const T&>(matcher).MatchAndExplain(value, listener); 299834b034c21ef4af7c0100194ed6f85910fc99debbzhanyong.wan} 299934b034c21ef4af7c0100194ed6f85910fc99debbzhanyong.wan 3000bf55085d456e3ee55eb234c98c435e54d0a2d5aazhanyong.wan// AllArgs(m) is a synonym of m. This is useful in 3001bf55085d456e3ee55eb234c98c435e54d0a2d5aazhanyong.wan// 3002bf55085d456e3ee55eb234c98c435e54d0a2d5aazhanyong.wan// EXPECT_CALL(foo, Bar(_, _)).With(AllArgs(Eq())); 3003bf55085d456e3ee55eb234c98c435e54d0a2d5aazhanyong.wan// 3004bf55085d456e3ee55eb234c98c435e54d0a2d5aazhanyong.wan// which is easier to read than 3005bf55085d456e3ee55eb234c98c435e54d0a2d5aazhanyong.wan// 3006bf55085d456e3ee55eb234c98c435e54d0a2d5aazhanyong.wan// EXPECT_CALL(foo, Bar(_, _)).With(Eq()); 3007bf55085d456e3ee55eb234c98c435e54d0a2d5aazhanyong.wantemplate <typename InnerMatcher> 3008bf55085d456e3ee55eb234c98c435e54d0a2d5aazhanyong.waninline InnerMatcher AllArgs(const InnerMatcher& matcher) { return matcher; } 3009bf55085d456e3ee55eb234c98c435e54d0a2d5aazhanyong.wan 3010e35fdd936d133bf8a48de140a3c666897588a05shiqian// These macros allow using matchers to check values in Google Test 3011e35fdd936d133bf8a48de140a3c666897588a05shiqian// tests. ASSERT_THAT(value, matcher) and EXPECT_THAT(value, matcher) 3012e35fdd936d133bf8a48de140a3c666897588a05shiqian// succeed iff the value matches the matcher. If the assertion fails, 3013e35fdd936d133bf8a48de140a3c666897588a05shiqian// the value and the description of the matcher will be printed. 3014e35fdd936d133bf8a48de140a3c666897588a05shiqian#define ASSERT_THAT(value, matcher) ASSERT_PRED_FORMAT1(\ 3015e35fdd936d133bf8a48de140a3c666897588a05shiqian ::testing::internal::MakePredicateFormatterFromMatcher(matcher), value) 3016e35fdd936d133bf8a48de140a3c666897588a05shiqian#define EXPECT_THAT(value, matcher) EXPECT_PRED_FORMAT1(\ 3017e35fdd936d133bf8a48de140a3c666897588a05shiqian ::testing::internal::MakePredicateFormatterFromMatcher(matcher), value) 3018e35fdd936d133bf8a48de140a3c666897588a05shiqian 3019e35fdd936d133bf8a48de140a3c666897588a05shiqian} // namespace testing 3020e35fdd936d133bf8a48de140a3c666897588a05shiqian 3021e35fdd936d133bf8a48de140a3c666897588a05shiqian#endif // GMOCK_INCLUDE_GMOCK_GMOCK_MATCHERS_H_ 3022