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Parse cpp_class_template

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Jonathan Müller 2017-03-27 11:34:51 +02:00
commit 22fd582756
12 changed files with 289 additions and 56 deletions
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test/cpp_class_template.cpp Normal file
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// Copyright (C) 2017 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.
#include <cppast/cpp_class_template.hpp>
#include <cppast/cpp_function_template.hpp>
#include <cppast/cpp_member_function.hpp>
#include <cppast/cpp_member_variable.hpp>
#include "test_parser.hpp"
using namespace cppast;
TEST_CASE("cpp_class_template")
{
auto code = R"(
// check everything not related to members first
template <typename T>
class a {};
template <int I, typename T>
struct b {};
template <template <typename> class T>
union c;
// bases
template <typename T>
struct d : T, a<T>, T::type, a<T>::type {};
// members
template <typename T>
struct e
{
T var_a;
a<T> var_b;
typename T::type var_c;
typename a<T>::type var_d;
template <typename U>
T func(U);
};
)";
cpp_entity_index idx;
auto file = parse(idx, "cpp_class_template.cpp", code);
auto count = test_visit<cpp_class_template>(*file, [&](const cpp_class_template& templ) {
auto& c = templ.class_();
REQUIRE(!c.is_final());
if (templ.name() == "a")
{
check_template_parameters(templ, {{cpp_entity_kind::template_type_parameter_t, "T"}});
REQUIRE(c.class_kind() == cpp_class_kind::class_t);
REQUIRE(c.is_definition());
}
else if (templ.name() == "b")
{
check_template_parameters(templ, {{cpp_entity_kind::non_type_template_parameter_t, "I"},
{cpp_entity_kind::template_type_parameter_t, "T"}});
REQUIRE(c.class_kind() == cpp_class_kind::struct_t);
REQUIRE(c.is_definition());
}
else if (templ.name() == "c")
{
check_template_parameters(templ,
{{cpp_entity_kind::template_template_parameter_t, "T"}});
REQUIRE(c.class_kind() == cpp_class_kind::union_t);
REQUIRE(c.is_declaration());
}
else
{
check_template_parameters(templ, {{cpp_entity_kind::template_type_parameter_t, "T"}});
REQUIRE(c.class_kind() == cpp_class_kind::struct_t);
REQUIRE(c.is_definition());
if (templ.name() == "d")
{
auto no = 0u;
for (auto& base : c.bases())
{
++no;
REQUIRE(base.access_specifier() == cpp_public);
REQUIRE(!base.is_virtual());
if (base.name() == "T")
REQUIRE(equal_types(idx, base.type(),
*cpp_template_parameter_type::build(
cpp_template_type_parameter_ref(cpp_entity_id(""),
"T"))));
else if (base.name() == "a<T>")
{
cpp_template_instantiation_type::builder builder(
cpp_template_ref(cpp_entity_id(""), "a"));
builder.add_unexposed_arguments("T");
REQUIRE(equal_types(idx, base.type(), *builder.finish()));
}
else if (base.name() == "T::type")
REQUIRE(
equal_types(idx, base.type(), *cpp_unexposed_type::build("T::type")));
else if (base.name() == "a<T>::type")
REQUIRE(equal_types(idx, base.type(),
*cpp_unexposed_type::build("a<T>::type")));
else
REQUIRE(false);
}
REQUIRE(no == 4u);
}
else if (templ.name() == "e")
{
auto no = 0u;
for (auto& child : c)
{
++no;
if (child.name().length() == 5u && child.name().substr(0, 3u) == "var")
{
REQUIRE(child.kind() == cpp_entity_kind::member_variable_t);
auto& var = static_cast<const cpp_member_variable&>(child);
if (child.name() == "var_a")
REQUIRE(
equal_types(idx, var.type(),
*cpp_template_parameter_type::build(
cpp_template_type_parameter_ref(cpp_entity_id(""),
"T"))));
else if (child.name() == "var_b")
{
cpp_template_instantiation_type::builder builder(
cpp_template_ref(cpp_entity_id(""), "a"));
builder.add_unexposed_arguments("T");
REQUIRE(equal_types(idx, var.type(), *builder.finish()));
}
else if (child.name() == "var_c")
REQUIRE(equal_types(idx, var.type(),
*cpp_unexposed_type::build("typename T::type")));
else if (child.name() == "var_d")
REQUIRE(equal_types(idx, var.type(),
*cpp_unexposed_type::build("typename a<T>::type")));
else
REQUIRE(false);
}
else if (child.name() == "func")
{
REQUIRE(child.kind() == cpp_entity_kind::function_template_t);
auto& templ = static_cast<const cpp_function_template&>(child);
REQUIRE(templ.function().kind() == cpp_entity_kind::member_function_t);
auto& mfunc = static_cast<const cpp_member_function&>(templ.function());
REQUIRE(equal_types(idx, mfunc.return_type(),
*cpp_template_parameter_type::build(
cpp_template_type_parameter_ref(cpp_entity_id(""),
"T"))));
for (auto& param : mfunc)
REQUIRE(
equal_types(idx, param.type(),
*cpp_template_parameter_type::build(
cpp_template_type_parameter_ref(cpp_entity_id(""),
"U"))));
}
else
REQUIRE(false);
}
REQUIRE(no == 5u);
}
}
});
REQUIRE(count == 5u);
}