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Add attribute convenience functions

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This commit is contained in:
Jonathan Müller 2017-10-29 20:54:54 +01:00
commit 10dd893b91
4 changed files with 124 additions and 37 deletions
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59
include/cppast/cpp_attribute.hpp
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@ -9,6 +9,7 @@
#include <vector>
#include <type_safe/optional.hpp>
#include <type_safe/optional_ref.hpp>
#include <cppast/cpp_token.hpp>
@ -30,35 +31,6 @@ namespace cppast
unknown, //< An unknown attribute.
};
namespace detail
{
inline const char* get_attribute_name(cpp_attribute_kind kind)
{
switch (kind)
{
case cpp_attribute_kind::alignas_:
return "alignas";
case cpp_attribute_kind::carries_dependency:
return "carries_dependency";
case cpp_attribute_kind::deprecated:
return "deprecated";
case cpp_attribute_kind::fallthrough:
return "fallthrough";
case cpp_attribute_kind::maybe_unused:
return "maybe_unused";
case cpp_attribute_kind::nodiscard:
return "nodiscard";
case cpp_attribute_kind::noreturn:
return "noreturn";
case cpp_attribute_kind::unknown:
return "unknown";
}
return "<error>";
}
} // namespace detail
/// A C++ attribute, including `alignas` specifiers.
///
/// It consists of a name, an optional namespace scope and optional arguments.
@ -72,12 +44,7 @@ namespace cppast
{
public:
/// \effects Creates a known attribute, potentially with arguments.
cpp_attribute(cpp_attribute_kind kind, type_safe::optional<cpp_token_string> arguments)
: cpp_attribute(type_safe::nullopt, detail::get_attribute_name(kind), std::move(arguments),
false)
{
kind_ = kind;
}
cpp_attribute(cpp_attribute_kind kind, type_safe::optional<cpp_token_string> arguments);
/// \effects Creates an unknown attribute giving it the optional scope, names, arguments and whether it is variadic.
cpp_attribute(type_safe::optional<std::string> scope, std::string name,
@ -129,6 +96,28 @@ namespace cppast
/// A list of C++ attributes.
using cpp_attribute_list = std::vector<cpp_attribute>;
/// Checks whether an attribute is given.
/// \returns `true` if the given attribute list (1-2) / entity (3-4) contain
/// an attribute of the given name (1+3) / kind (2+4).
/// `false` otherwise.
/// \group has_attribute
type_safe::optional_ref<const cpp_attribute> has_attribute(const cpp_attribute_list& attributes,
const std::string& name);
/// \group has_attribute
type_safe::optional_ref<const cpp_attribute> has_attribute(const cpp_attribute_list& attributes,
cpp_attribute_kind kind);
class cpp_entity;
/// \group has_attribute
type_safe::optional_ref<const cpp_attribute> has_attribute(const cpp_entity& e,
const std::string& name);
/// \group has_attribute
type_safe::optional_ref<const cpp_attribute> has_attribute(const cpp_entity& e,
cpp_attribute_kind kind);
} // namespace cppast
#endif // CPPAST_CPP_ATTRIBUTE_HPP_INCLUDED