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/*
* Created by Phil Nash on 04/03/2012.
* Copyright (c) 2012 Two Blue Cubes Ltd. All rights reserved.
*
* Distributed under the Boost Software License, Version 1.0. (See accompanying
* file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
*/
#ifndef TWOBLUECUBES_CATCH_MATCHERS_HPP_INCLUDED
#define TWOBLUECUBES_CATCH_MATCHERS_HPP_INCLUDED
#include "catch_common.h"
#include <string>
#include <vector>
namespace Catch {
namespace Matchers {
namespace Impl {
template<typename ArgT> struct MatchAllOf;
template<typename ArgT> struct MatchAnyOf;
template<typename ArgT> struct MatchNotOf;
class MatcherUntypedBase {
public:
MatcherUntypedBase() = default;
MatcherUntypedBase ( MatcherUntypedBase const& ) = default;
MatcherUntypedBase& operator = ( MatcherUntypedBase const& ) = delete;
std::string toString() const;
protected:
virtual ~MatcherUntypedBase();
virtual std::string describe() const = 0;
mutable std::string m_cachedToString;
};
#ifdef __clang__
# pragma clang diagnostic push
# pragma clang diagnostic ignored "-Wnon-virtual-dtor"
#endif
template<typename ObjectT>
struct MatcherMethod {
virtual bool match( ObjectT const& arg ) const = 0;
};
#if defined(__OBJC__)
// Hack to fix Catch GH issue #1661. Could use id for generic Object support.
// use of const for Object pointers is very uncommon and under ARC it causes some kind of signature mismatch that breaks compilation
template<>
struct MatcherMethod<NSString*> {
virtual bool match( NSString* arg ) const = 0;
};
#endif
#ifdef __clang__
# pragma clang diagnostic pop
#endif
template<typename T>
struct MatcherBase : MatcherUntypedBase, MatcherMethod<T> {
MatchAllOf<T> operator && ( MatcherBase const& other ) const;
MatchAnyOf<T> operator || ( MatcherBase const& other ) const;
MatchNotOf<T> operator ! () const;
};
template<typename ArgT>
struct MatchAllOf : MatcherBase<ArgT> {
bool match( ArgT const& arg ) const override {
for( auto matcher : m_matchers ) {
if (!matcher->match(arg))
return false;
}
return true;
}
std::string describe() const override {
std::string description;
description.reserve( 4 + m_matchers.size()*32 );
description += "( ";
bool first = true;
for( auto matcher : m_matchers ) {
if( first )
first = false;
else
description += " and ";
description += matcher->toString();
}
description += " )";
return description;
}
MatchAllOf<ArgT> operator && ( MatcherBase<ArgT> const& other ) {
auto copy(*this);
copy.m_matchers.push_back( &other );
return copy;
}
std::vector<MatcherBase<ArgT> const*> m_matchers;
};
template<typename ArgT>
struct MatchAnyOf : MatcherBase<ArgT> {
bool match( ArgT const& arg ) const override {
for( auto matcher : m_matchers ) {
if (matcher->match(arg))
return true;
}
return false;
}
std::string describe() const override {
std::string description;
description.reserve( 4 + m_matchers.size()*32 );
description += "( ";
bool first = true;
for( auto matcher : m_matchers ) {
if( first )
first = false;
else
description += " or ";
description += matcher->toString();
}
description += " )";
return description;
}
MatchAnyOf<ArgT> operator || ( MatcherBase<ArgT> const& other ) {
auto copy(*this);
copy.m_matchers.push_back( &other );
return copy;
}
std::vector<MatcherBase<ArgT> const*> m_matchers;
};
template<typename ArgT>
struct MatchNotOf : MatcherBase<ArgT> {
MatchNotOf( MatcherBase<ArgT> const& underlyingMatcher ) : m_underlyingMatcher( underlyingMatcher ) {}
bool match( ArgT const& arg ) const override {
return !m_underlyingMatcher.match( arg );
}
std::string describe() const override {
return "not " + m_underlyingMatcher.toString();
}
MatcherBase<ArgT> const& m_underlyingMatcher;
};
template<typename T>
MatchAllOf<T> MatcherBase<T>::operator && ( MatcherBase const& other ) const {
return MatchAllOf<T>() && *this && other;
}
template<typename T>
MatchAnyOf<T> MatcherBase<T>::operator || ( MatcherBase const& other ) const {
return MatchAnyOf<T>() || *this || other;
}
template<typename T>
MatchNotOf<T> MatcherBase<T>::operator ! () const {
return MatchNotOf<T>( *this );
}
} // namespace Impl
} // namespace Matchers
using namespace Matchers;
using Matchers::Impl::MatcherBase;
} // namespace Catch
#endif // TWOBLUECUBES_CATCH_MATCHERS_HPP_INCLUDED
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