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Support creating react::source with an immediate subscriber

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This commit is contained in:
Nikita Lisitsa 2023-04-18 15:30:30 +03:00
parent 9f0179a86a
commit e21692743c
2 changed files with 27 additions and 0 deletions
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24
libs/react/include/psemek/react/source.hpp
View file

@ -22,6 +22,15 @@ namespace psemek::react
set(std::move(x)); set(std::move(x));
} }
source(T x, typename util::signal<T>::subscriber subscriber)
: source(std::move(x))
{
subscription_token_ = this->subscribe(std::move(subscriber));
}
source & operator = (source const &) = default;
source & operator = (source &&) = default;
void set(T x) const void set(T x) const
{ {
this->node_->cached_value = std::nullopt; this->node_->cached_value = std::nullopt;
@ -55,6 +64,9 @@ namespace psemek::react
return result; return result;
} }
private:
typename util::signal<T>::subscription_token subscription_token_;
}; };
template <> template <>
@ -68,11 +80,23 @@ namespace psemek::react
: value<void>(detail::internal_tag{}, std::make_shared<detail::node<void>>()) : value<void>(detail::internal_tag{}, std::make_shared<detail::node<void>>())
{} {}
source(util::signal<void>::subscriber subscriber)
: source()
{
subscribtion_token_ = subscribe(std::move(subscriber));
}
source & operator = (source const &) = default;
source & operator = (source &&) = default;
void set() const void set() const
{ {
this->node_->internal_signal(); this->node_->internal_signal();
this->node_->external_signal(); this->node_->external_signal();
} }
private:
util::signal<void>::subscription_token subscribtion_token_;
}; };
template <typename T> template <typename T>

3
libs/react/include/psemek/react/value.hpp
View file

@ -84,6 +84,9 @@ namespace psemek::react
: node_(node) : node_(node)
{} {}
value & operator = (value const &) = default;
value & operator = (value &&) = default;
explicit operator bool() const explicit operator bool() const
{ {
return static_cast<bool>(node_); return static_cast<bool>(node_);