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Add example documentation

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Fixes #13.
This commit is contained in:
Jonathan Müller 2017-11-14 18:28:24 +01:00
commit c886ef31e4
7 changed files with 70 additions and 1 deletions
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10
example/enum_category.cpp
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@ -4,6 +4,9 @@
/// \file
/// Generates enum category functions.
///
/// Given an input file, it will generate definitions for functions marked with [[generate::enum_category(name)]].
/// The function takes an enumerator and will return true if it is marked with the same category.
#include <algorithm>
#include <cassert>
@ -15,10 +18,12 @@
#include "example_parser.hpp"
// returns whether or not the given enumerator has the given category
bool is_category(const cppast::cpp_enum_value& e, const std::string& name)
{
if (auto attr = cppast::has_attribute(e, "generate::enum_category"))
{
// ... by looking for the token
auto iter =
std::find_if(attr.value().arguments().value().begin(),
attr.value().arguments().value().end(),
@ -29,12 +34,14 @@ bool is_category(const cppast::cpp_enum_value& e, const std::string& name)
return false;
}
// returns the enum the parameter type refers to
const cppast::cpp_enum& get_enum(const cppast::cpp_entity_index& index,
const cppast::cpp_function_parameter& param)
{
auto& param_type = param.type();
// is an enum
// it is an enum
assert(param_type.kind() == cppast::cpp_type_kind::user_defined_t);
// lookup definition
auto& definition =
static_cast<const cppast::cpp_user_defined_type&>(param_type).entity().get(index)[0u].get();
@ -42,6 +49,7 @@ const cppast::cpp_enum& get_enum(const cppast::cpp_entity_index& index,
return static_cast<const cppast::cpp_enum&>(definition);
}
// generates the function definitions
void generate_enum_category(const cppast::cpp_entity_index& index, const cppast::cpp_file& file)
{
cppast::visit(file,