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This commit is contained in:
Jonathan Müller 2022-02-07 20:43:22 +01:00
commit 62e571a4d6
133 changed files with 936 additions and 1103 deletions
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85
example/comparison.cpp
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@ -1,6 +1,5 @@
// Copyright (C) 2017-2019 Jonathan Müller <jonathanmueller.dev@gmail.com>
// This file is subject to the license terms in the LICENSE file
// found in the top-level directory of this distribution.
// Copyright (C) 2017-2022 Jonathan Müller and cppast contributors
// SPDX-License-Identifier: MIT
/// \file
/// Generate equality comparisons.
@ -80,48 +79,46 @@ void generate_op_non_equal(std::ostream& out, const cppast::cpp_class& c)
// generate comparison operators for all classes in the file
void generate_comparison(const cppast::cpp_file& file)
{
cppast::visit(file,
[](const cppast::cpp_entity& e) {
// only visit non-templated class definitions that have the attribute set
return (!cppast::is_templated(e)
&& e.kind() == cppast::cpp_entity_kind::class_t
&& cppast::is_definition(e)
&& cppast::has_attribute(e, "generate::comparison"))
// or all namespaces
|| e.kind() == cppast::cpp_entity_kind::namespace_t;
},
[](const cppast::cpp_entity& e, const cppast::visitor_info& info) {
if (e.kind() == cppast::cpp_entity_kind::class_t && !info.is_old_entity())
{
// it is a new class
auto& class_ = static_cast<const cppast::cpp_class&>(e);
auto& attribute
= cppast::has_attribute(e, "generate::comparison").value();
cppast::visit(
file,
[](const cppast::cpp_entity& e) {
// only visit non-templated class definitions that have the attribute set
return (!cppast::is_templated(e) && e.kind() == cppast::cpp_entity_kind::class_t
&& cppast::is_definition(e) && cppast::has_attribute(e, "generate::comparison"))
// or all namespaces
|| e.kind() == cppast::cpp_entity_kind::namespace_t;
},
[](const cppast::cpp_entity& e, const cppast::visitor_info& info) {
if (e.kind() == cppast::cpp_entity_kind::class_t && !info.is_old_entity())
{
// it is a new class
auto& class_ = static_cast<const cppast::cpp_class&>(e);
auto& attribute = cppast::has_attribute(e, "generate::comparison").value();
// generate requested operators
if (attribute.arguments())
{
if (has_token(attribute.arguments().value(), "=="))
generate_op_equal(std::cout, class_);
if (has_token(attribute.arguments().value(), "!="))
generate_op_non_equal(std::cout, class_);
}
else
{
generate_op_equal(std::cout, class_);
generate_op_non_equal(std::cout, class_);
}
}
else if (e.kind() == cppast::cpp_entity_kind::namespace_t)
{
if (info.event == cppast::visitor_info::container_entity_enter)
// open namespace
std::cout << "namespace " << e.name() << " {\n\n";
else // if (info.event == cppast::visitor_info::container_entity_exit)
// close namespace
std::cout << "}\n";
}
});
// generate requested operators
if (attribute.arguments())
{
if (has_token(attribute.arguments().value(), "=="))
generate_op_equal(std::cout, class_);
if (has_token(attribute.arguments().value(), "!="))
generate_op_non_equal(std::cout, class_);
}
else
{
generate_op_equal(std::cout, class_);
generate_op_non_equal(std::cout, class_);
}
}
else if (e.kind() == cppast::cpp_entity_kind::namespace_t)
{
if (info.event == cppast::visitor_info::container_entity_enter)
// open namespace
std::cout << "namespace " << e.name() << " {\n\n";
else // if (info.event == cppast::visitor_info::container_entity_exit)
// close namespace
std::cout << "}\n";
}
});
}
int main(int argc, char* argv[])