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Add definition info to AST dump

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This commit is contained in:
Jonathan Müller 2017-04-11 18:33:49 +02:00
commit 599524a894
5 changed files with 162 additions and 43 deletions
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64
include/cppast/cpp_forward_declarable.hpp
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@ -60,52 +60,36 @@ namespace cppast
type_safe::optional<cpp_entity_id> definition_;
};
/// \exclude
namespace detail
{
template <typename T>
auto get_definition_impl(const cpp_entity_index& idx, const T& entity) ->
typename std::enable_if<std::is_base_of<cpp_forward_declarable, T>::value,
type_safe::optional_ref<const T>>::type
{
if (!entity.definition())
// entity is definition itself
return type_safe::opt_cref(&entity);
else
// entity is not a definition
// lookup the definition
return idx
.lookup_definition(entity.definition().value())
// downcast
.map([](const cpp_entity& e) {
DEBUG_ASSERT(e.kind() == T::kind(), detail::assert_handler{});
return type_safe::ref(static_cast<const T&>(e));
});
}
/// \returns Whether or not the given entity is a definition.
bool is_definition(const cpp_entity& e) noexcept;
template <typename T>
auto get_definition_impl(const cpp_entity_index&, const T& entity) ->
typename std::enable_if<!std::is_base_of<cpp_forward_declarable, T>::value,
type_safe::optional_ref<const T>>::type
{
return type_safe::opt_cref(&entity);
}
} // namespace detail
class cpp_enum;
class cpp_class;
class cpp_variable;
class cpp_function_base;
/// Gets the definition of an entity.
/// \returns A [ts::optional_ref]() to the entity that is the definition.
/// If the entity is a definition or not derived from [cppast::cpp_forward_declarable](),
/// If the entity is a definition or not derived from [cppast::cpp_forward_declarable]() (only valid for the generic entity overload),
/// returns a reference to the entity itself.
/// Otherwise lookups the definition id and returns it.
/// \requires `entity` must be derived from [cppast::cpp_entity]().
/// \param 1
/// \exclude
template <typename T,
typename = typename std::enable_if<std::is_base_of<cpp_entity, T>::value>::type>
type_safe::optional_ref<const T> get_definition(const cpp_entity_index& idx, const T& entity)
{
return detail::get_definition_impl(idx, entity);
}
/// \notes The return value will only be `nullptr`, if the definition is not registered.
/// \group get_definition
type_safe::optional_ref<const cpp_entity> get_definition(const cpp_entity_index& idx,
const cpp_entity& e);
/// \group get_definition
type_safe::optional_ref<const cpp_enum> get_definition(const cpp_entity_index& idx,
const cpp_enum& e);
/// \group get_definition
type_safe::optional_ref<const cpp_class> get_definition(const cpp_entity_index& idx,
const cpp_class& e);
/// \group get_definition
type_safe::optional_ref<const cpp_variable> get_definition(const cpp_entity_index& idx,
const cpp_variable& e);
/// \group get_definition
type_safe::optional_ref<const cpp_function_base> get_definition(const cpp_entity_index& idx,
const cpp_function_base& e);
} // namespace cppast
#endif // CPPAST_CPP_FORWARD_DECLARABLE_HPP_INCLUDED