visitor.hpp
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#ifndef OSMIUM_VISITOR_HPP
#define OSMIUM_VISITOR_HPP
/*
This file is part of Osmium (http://osmcode.org/libosmium).
Copyright 2013-2016 Jochen Topf <jochen@topf.org> and others (see README).
Boost Software License - Version 1.0 - August 17th, 2003
Permission is hereby granted, free of charge, to any person or organization
obtaining a copy of the software and accompanying documentation covered by
this license (the "Software") to use, reproduce, display, distribute,
execute, and transmit the Software, and to prepare derivative works of the
Software, and to permit third-parties to whom the Software is furnished to
do so, all subject to the following:
The copyright notices in the Software and this entire statement, including
the above license grant, this restriction and the following disclaimer,
must be included in all copies of the Software, in whole or in part, and
all derivative works of the Software, unless such copies or derivative
works are solely in the form of machine-executable object code generated by
a source language processor.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.
*/
#include <type_traits>
#include <osmium/fwd.hpp>
#include <osmium/io/reader_iterator.hpp> // IWYU pragma: keep
#include <osmium/memory/buffer.hpp>
#include <osmium/osm.hpp>
#include <osmium/osm/entity.hpp>
#include <osmium/osm/item_type.hpp>
namespace osmium {
namespace memory {
class Item;
} // namespace memory
namespace detail {
template <typename T, typename U>
using ConstIfConst = typename std::conditional<std::is_const<T>::value, typename std::add_const<U>::type, U>::type;
template <typename THandler, typename TItem>
inline void apply_item_recurse(TItem& item, THandler& handler) {
switch (item.type()) {
case osmium::item_type::undefined:
break;
case osmium::item_type::node:
handler.osm_object(static_cast<ConstIfConst<TItem, osmium::OSMObject>&>(item));
handler.node(static_cast<ConstIfConst<TItem, osmium::Node>&>(item));
break;
case osmium::item_type::way:
handler.osm_object(static_cast<ConstIfConst<TItem, osmium::OSMObject>&>(item));
handler.way(static_cast<ConstIfConst<TItem, osmium::Way>&>(item));
break;
case osmium::item_type::relation:
handler.osm_object(static_cast<ConstIfConst<TItem, osmium::OSMObject>&>(item));
handler.relation(static_cast<ConstIfConst<TItem, osmium::Relation>&>(item));
break;
case osmium::item_type::area:
handler.osm_object(static_cast<ConstIfConst<TItem, osmium::OSMObject>&>(item));
handler.area(static_cast<ConstIfConst<TItem, osmium::Area>&>(item));
break;
case osmium::item_type::changeset:
handler.changeset(static_cast<ConstIfConst<TItem, osmium::Changeset>&>(item));
break;
case osmium::item_type::tag_list:
handler.tag_list(static_cast<ConstIfConst<TItem, osmium::TagList>&>(item));
break;
case osmium::item_type::way_node_list:
handler.way_node_list(static_cast<ConstIfConst<TItem, osmium::WayNodeList>&>(item));
break;
case osmium::item_type::relation_member_list:
case osmium::item_type::relation_member_list_with_full_members:
handler.relation_member_list(static_cast<ConstIfConst<TItem, osmium::RelationMemberList>&>(item));
break;
case osmium::item_type::outer_ring:
handler.outer_ring(static_cast<ConstIfConst<TItem, osmium::OuterRing>&>(item));
break;
case osmium::item_type::inner_ring:
handler.inner_ring(static_cast<ConstIfConst<TItem, osmium::InnerRing>&>(item));
break;
case osmium::item_type::changeset_discussion:
handler.changeset_discussion(static_cast<ConstIfConst<TItem, osmium::ChangesetDiscussion>&>(item));
break;
}
}
template <typename THandler>
inline void apply_item_recurse(const osmium::OSMEntity& item, THandler& handler) {
switch (item.type()) {
case osmium::item_type::node:
handler.osm_object(static_cast<const osmium::OSMObject&>(item));
handler.node(static_cast<const osmium::Node&>(item));
break;
case osmium::item_type::way:
handler.osm_object(static_cast<const osmium::OSMObject&>(item));
handler.way(static_cast<const osmium::Way&>(item));
break;
case osmium::item_type::relation:
handler.osm_object(static_cast<const osmium::OSMObject&>(item));
handler.relation(static_cast<const osmium::Relation&>(item));
break;
case osmium::item_type::area:
handler.osm_object(static_cast<const osmium::OSMObject&>(item));
handler.area(static_cast<const osmium::Area&>(item));
break;
case osmium::item_type::changeset:
handler.changeset(static_cast<const osmium::Changeset&>(item));
break;
default:
throw osmium::unknown_type();
}
}
template <typename THandler>
inline void apply_item_recurse(osmium::OSMEntity& item, THandler& handler) {
switch (item.type()) {
case osmium::item_type::node:
handler.osm_object(static_cast<osmium::OSMObject&>(item));
handler.node(static_cast<osmium::Node&>(item));
break;
case osmium::item_type::way:
handler.osm_object(static_cast<osmium::OSMObject&>(item));
handler.way(static_cast<osmium::Way&>(item));
break;
case osmium::item_type::relation:
handler.osm_object(static_cast<osmium::OSMObject&>(item));
handler.relation(static_cast<osmium::Relation&>(item));
break;
case osmium::item_type::area:
handler.osm_object(static_cast<osmium::OSMObject&>(item));
handler.area(static_cast<osmium::Area&>(item));
break;
case osmium::item_type::changeset:
handler.changeset(static_cast<osmium::Changeset&>(item));
break;
default:
throw osmium::unknown_type();
}
}
template <typename THandler>
inline void apply_item_recurse(const osmium::OSMObject& item, THandler& handler) {
switch (item.type()) {
case osmium::item_type::node:
handler.osm_object(item);
handler.node(static_cast<const osmium::Node&>(item));
break;
case osmium::item_type::way:
handler.osm_object(item);
handler.way(static_cast<const osmium::Way&>(item));
break;
case osmium::item_type::relation:
handler.osm_object(item);
handler.relation(static_cast<const osmium::Relation&>(item));
break;
case osmium::item_type::area:
handler.osm_object(item);
handler.area(static_cast<const osmium::Area&>(item));
break;
default:
throw osmium::unknown_type();
}
}
template <typename THandler>
inline void apply_item_recurse(osmium::OSMObject& item, THandler& handler) {
switch (item.type()) {
case osmium::item_type::node:
handler.osm_object(item);
handler.node(static_cast<osmium::Node&>(item));
break;
case osmium::item_type::way:
handler.osm_object(item);
handler.way(static_cast<osmium::Way&>(item));
break;
case osmium::item_type::relation:
handler.osm_object(item);
handler.relation(static_cast<osmium::Relation&>(item));
break;
case osmium::item_type::area:
handler.osm_object(item);
handler.area(static_cast<osmium::Area&>(item));
break;
default:
throw osmium::unknown_type();
}
}
template <typename THandler, typename TItem, typename... TRest>
inline void apply_item_recurse(TItem& item, THandler& handler, TRest&... more) {
apply_item_recurse(item, handler);
apply_item_recurse(item, more...);
}
template <typename THandler>
inline void flush_recurse(THandler& handler) {
handler.flush();
}
template <typename THandler, typename... TRest>
inline void flush_recurse(THandler& handler, TRest&... more) {
flush_recurse(handler);
flush_recurse(more...);
}
} // namespace detail
template <typename... THandlers>
inline void apply_item(const osmium::memory::Item& item, THandlers&... handlers) {
detail::apply_item_recurse(item, handlers...);
}
template <typename... THandlers>
inline void apply_item(osmium::memory::Item& item, THandlers&... handlers) {
detail::apply_item_recurse(item, handlers...);
}
template <typename TIterator, typename... THandlers>
inline void apply(TIterator it, TIterator end, THandlers&... handlers) {
for (; it != end; ++it) {
detail::apply_item_recurse(*it, handlers...);
}
detail::flush_recurse(handlers...);
}
template <typename TContainer, typename... THandlers>
inline void apply(TContainer& c, THandlers&... handlers) {
apply(std::begin(c), std::end(c), handlers...);
}
template <typename... THandlers>
inline void apply(const osmium::memory::Buffer& buffer, THandlers&... handlers) {
apply(buffer.cbegin(), buffer.cend(), handlers...);
}
} // namespace osmium
#endif // OSMIUM_VISITOR_HPP
osmium::item_type::way
osmium::item_type::way_node_list
osmium::memory::Buffer::cend
t_const_iterator< T > cend() const
Definition: buffer.hpp:626
osmium::unknown_type
Definition: item_type.hpp:198
osmium::item_type::outer_ring
osmium::osm_entity_bits::type
type
Definition: entity_bits.hpp:60
osmium::item_type::tag_list
osmium::item_type::inner_ring
osmium::item_type::changeset_discussion
osmium::item_type::relation_member_list_with_full_members
fwd.hpp
osmium::item_type::area
osmium::OSMEntity
OSMEntity is the abstract base class for the OSMObject and Changeset classes.
Definition: entity.hpp:64
reader_iterator.hpp
osmium::item_type::relation
item_type.hpp
osmium::apply
void apply(TIterator it, TIterator end, THandlers &...handlers)
Definition: visitor.hpp:234
osmium::item_type::node
osmium::apply_item
void apply_item(const osmium::memory::Item &item, THandlers &...handlers)
Definition: visitor.hpp:224
osmium::item_type::undefined
osmium::memory::Item
Definition: item.hpp:97
osmium::item_type::changeset
osmium
Namespace for everything in the Osmium library.
Definition: assembler.hpp:59
detail
Definition: attr.hpp:298
std::end
osmium::io::InputIterator< osmium::io::Reader > end(osmium::io::Reader &)
Definition: reader_iterator.hpp:45
entity.hpp
osmium::memory::Buffer
Definition: buffer.hpp:97
buffer.hpp
osmium::memory::Buffer::cbegin
t_const_iterator< T > cbegin() const
Definition: buffer.hpp:604
osmium::item_type::relation_member_list
osm.hpp
std::begin
osmium::io::InputIterator< osmium::io::Reader > begin(osmium::io::Reader &reader)
Definition: reader_iterator.hpp:41
osmium::memory::Item::type
item_type type() const noexcept
Definition: item.hpp:155
osmium::OSMObject
Definition: object.hpp:58