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-rw-r--r--Rx/v2/src/rxcpp/operators/rx-on_error_resume_next.hpp106
1 files changed, 106 insertions, 0 deletions
diff --git a/Rx/v2/src/rxcpp/operators/rx-on_error_resume_next.hpp b/Rx/v2/src/rxcpp/operators/rx-on_error_resume_next.hpp
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+++ b/Rx/v2/src/rxcpp/operators/rx-on_error_resume_next.hpp
@@ -0,0 +1,106 @@
+// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved. See License.txt in the project root for license information.
+
+#pragma once
+
+#if !defined(RXCPP_OPERATORS_RX_ON_ERROR_RESUME_NEXT_HPP)
+#define RXCPP_OPERATORS_RX_ON_ERROR_RESUME_NEXT_HPP
+
+#include "../rx-includes.hpp"
+
+namespace rxcpp {
+
+namespace operators {
+
+namespace detail {
+
+
+template<class T, class Selector>
+struct on_error_resume_next
+{
+ typedef rxu::decay_t<T> value_type;
+ typedef rxu::decay_t<Selector> select_type;
+ typedef decltype((*(select_type*)nullptr)(std::exception_ptr())) fallback_type;
+ select_type selector;
+
+ on_error_resume_next(select_type s)
+ : selector(std::move(s))
+ {
+ }
+
+ template<class Subscriber>
+ struct on_error_resume_next_observer
+ {
+ typedef on_error_resume_next_observer<Subscriber> this_type;
+ typedef rxu::decay_t<T> value_type;
+ typedef rxu::decay_t<Selector> select_type;
+ typedef decltype((*(select_type*)nullptr)(std::exception_ptr())) fallback_type;
+ typedef rxu::decay_t<Subscriber> dest_type;
+ typedef observer<T, this_type> observer_type;
+ dest_type dest;
+ composite_subscription lifetime;
+ select_type selector;
+
+ on_error_resume_next_observer(dest_type d, composite_subscription cs, select_type s)
+ : dest(std::move(d))
+ , lifetime(std::move(cs))
+ , selector(std::move(s))
+ {
+ dest.add(lifetime);
+ }
+ void on_next(value_type v) const {
+ dest.on_next(std::move(v));
+ }
+ void on_error(std::exception_ptr e) const {
+ auto selected = on_exception(
+ [&](){
+ return this->selector(std::move(e));},
+ dest);
+ if (selected.empty()) {
+ return;
+ }
+ selected->subscribe(dest);
+ }
+ void on_completed() const {
+ dest.on_completed();
+ }
+
+ static subscriber<T, observer_type> make(dest_type d, select_type s) {
+ auto cs = composite_subscription();
+ return make_subscriber<T>(cs, observer_type(this_type(std::move(d), cs, std::move(s))));
+ }
+ };
+
+ template<class Subscriber>
+ auto operator()(Subscriber dest) const
+ -> decltype(on_error_resume_next_observer<Subscriber>::make(std::move(dest), selector)) {
+ return on_error_resume_next_observer<Subscriber>::make(std::move(dest), selector);
+ }
+};
+
+template<class Selector>
+class on_error_resume_next_factory
+{
+ typedef rxu::decay_t<Selector> select_type;
+ select_type selector;
+public:
+ on_error_resume_next_factory(select_type s) : selector(std::move(s)) {}
+ template<class Observable>
+ auto operator()(Observable&& source)
+ -> decltype(source.template lift<rxu::value_type_t<on_error_resume_next<rxu::value_type_t<rxu::decay_t<Observable>>, select_type>>>(on_error_resume_next<rxu::value_type_t<rxu::decay_t<Observable>>, select_type>(selector))) {
+ return source.template lift<rxu::value_type_t<on_error_resume_next<rxu::value_type_t<rxu::decay_t<Observable>>, select_type>>>(on_error_resume_next<rxu::value_type_t<rxu::decay_t<Observable>>, select_type>(selector));
+ }
+};
+
+}
+
+template<class Selector>
+auto on_error_resume_next(Selector&& p)
+ -> detail::on_error_resume_next_factory<Selector> {
+ return detail::on_error_resume_next_factory<Selector>(std::forward<Selector>(p));
+}
+
+}
+
+}
+
+#endif