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// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved. See License.txt in the project root for license information.
#pragma once
#if !defined(RXCPP_RX_PREDEF_HPP)
#define RXCPP_RX_PREDEF_HPP
#include "rx-includes.hpp"
namespace rxcpp {
//
// create a typedef for rxcpp_trace_type to override the default
//
inline auto trace_activity() -> decltype(rxcpp_trace_activity(trace_tag()))& {
static decltype(rxcpp_trace_activity(trace_tag())) trace;
return trace;
}
struct tag_action {};
template<class T, class C = rxu::types_checked>
struct is_action : public std::false_type {};
template<class T>
struct is_action<T, typename rxu::types_checked_from<typename T::action_tag>::type>
: public std::is_convertible<typename T::action_tag*, tag_action*> {};
struct tag_worker {};
template<class T>
class is_worker
{
struct not_void {};
template<class C>
static typename C::worker_tag* check(int);
template<class C>
static not_void check(...);
public:
static const bool value = std::is_convertible<decltype(check<rxu::decay_t<T>>(0)), tag_worker*>::value;
};
struct tag_scheduler {};
template<class T>
class is_scheduler
{
struct not_void {};
template<class C>
static typename C::scheduler_tag* check(int);
template<class C>
static not_void check(...);
public:
static const bool value = std::is_convertible<decltype(check<rxu::decay_t<T>>(0)), tag_scheduler*>::value;
};
struct tag_schedulable {};
template<class T>
class is_schedulable
{
struct not_void {};
template<class C>
static typename C::schedulable_tag* check(int);
template<class C>
static not_void check(...);
public:
static const bool value = std::is_convertible<decltype(check<rxu::decay_t<T>>(0)), tag_schedulable*>::value;
};
template<class T>
class dynamic_observer;
template<class T, class I = dynamic_observer<T>>
class observer;
struct tag_observer {};
template<class T>
class is_observer
{
template<class C>
static typename C::observer_tag* check(int);
template<class C>
static void check(...);
public:
static const bool value = std::is_convertible<decltype(check<rxu::decay_t<T>>(0)), tag_observer*>::value;
};
struct tag_dynamic_observer {};
template<class T>
class is_dynamic_observer
{
struct not_void {};
template<class C>
static typename C::dynamic_observer_tag* check(int);
template<class C>
static not_void check(...);
public:
static const bool value = std::is_convertible<decltype(check<rxu::decay_t<T>>(0)), tag_dynamic_observer*>::value;
};
struct tag_subscriber {};
template<class T>
class is_subscriber
{
struct not_void {};
template<class C>
static typename C::subscriber_tag* check(int);
template<class C>
static not_void check(...);
public:
static const bool value = std::is_convertible<decltype(check<rxu::decay_t<T>>(0)), tag_subscriber*>::value;
};
struct tag_dynamic_observable {};
template<class T>
class is_dynamic_observable
{
struct not_void {};
template<class C>
static typename C::dynamic_observable_tag* check(int);
template<class C>
static not_void check(...);
public:
static const bool value = std::is_convertible<decltype(check<rxu::decay_t<T>>(0)), tag_dynamic_observable*>::value;
};
template<class T>
class dynamic_observable;
template<
class T = void,
class SourceObservable = typename std::conditional<std::is_same<T, void>::value,
void, dynamic_observable<T>>::type>
class observable;
template<class T, class Source>
observable<T> make_observable_dynamic(Source&&);
template<class Selector, class Default, template<class... TN> class SO, class... AN>
struct defer_observable;
struct tag_observable {};
template<class T>
struct observable_base {
typedef tag_observable observable_tag;
typedef T value_type;
};
template<class T>
class is_observable
{
template<class C>
static typename C::observable_tag check(int);
template<class C>
static void check(...);
public:
static const bool value = std::is_convertible<decltype(check<rxu::decay_t<T>>(0)), tag_observable>::value;
};
struct tag_dynamic_connectable_observable : public tag_dynamic_observable {};
template<class T>
class is_dynamic_connectable_observable
{
struct not_void {};
template<class C>
static typename C::dynamic_observable_tag* check(int);
template<class C>
static not_void check(...);
public:
static const bool value = std::is_convertible<decltype(check<rxu::decay_t<T>>(0)), tag_dynamic_connectable_observable*>::value;
};
template<class T>
class dynamic_connectable_observable;
template<class T,
class SourceObservable = typename std::conditional<std::is_same<T, void>::value,
void, dynamic_connectable_observable<T>>::type>
class connectable_observable;
struct tag_connectable_observable : public tag_observable {};
template<class T>
class is_connectable_observable
{
template<class C>
static typename C::observable_tag check(int);
template<class C>
static void check(...);
public:
static const bool value = std::is_convertible<decltype(check<rxu::decay_t<T>>(0)), tag_connectable_observable>::value;
};
struct tag_dynamic_grouped_observable : public tag_dynamic_observable {};
template<class T>
class is_dynamic_grouped_observable
{
struct not_void {};
template<class C>
static typename C::dynamic_observable_tag* check(int);
template<class C>
static not_void check(...);
public:
static const bool value = std::is_convertible<decltype(check<rxu::decay_t<T>>(0)), tag_dynamic_grouped_observable*>::value;
};
template<class K, class T>
class dynamic_grouped_observable;
template<class K, class T,
class SourceObservable = typename std::conditional<std::is_same<T, void>::value,
void, dynamic_grouped_observable<K, T>>::type>
class grouped_observable;
template<class K, class T, class Source>
grouped_observable<K, T> make_dynamic_grouped_observable(Source&& s);
struct tag_grouped_observable : public tag_observable {};
template<class T>
class is_grouped_observable
{
template<class C>
static typename C::observable_tag check(int);
template<class C>
static void check(...);
public:
static const bool value = std::is_convertible<decltype(check<rxu::decay_t<T>>(0)), tag_grouped_observable>::value;
};
//
// this type is the default used by operators that subscribe to
// multiple sources. It assumes that the sources are already synchronized
//
struct identity_observable
{
template<class Observable>
auto operator()(Observable o)
-> Observable {
return std::move(o);
static_assert(is_observable<Observable>::value, "only support observables");
}
};
template<class T>
struct identity_for
{
T operator()(T t) {
return std::move(t);
}
};
}
#endif
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