cppast/test/cpp_member_variable.cpp
2022-02-07 20:43:22 +01:00

111 lines
2.9 KiB
C++

// Copyright (C) 2017-2022 Jonathan Müller and cppast contributors
// SPDX-License-Identifier: MIT
#include <cppast/cpp_member_variable.hpp>
#include "test_parser.hpp"
using namespace cppast;
TEST_CASE("cpp_member_variable")
{
auto code = R"(
struct foo
{
/// int a;
int a;
/// float b=3.14f;
float b = 3.14f;
/// mutable char c;
mutable char c;
};
)";
cpp_entity_index idx;
auto file = parse(idx, "cpp_member_variable.cpp", code);
auto count = test_visit<cpp_member_variable>(*file, [&](const cpp_member_variable& var) {
if (var.name() == "a")
{
auto type = cpp_builtin_type::build(cpp_int);
REQUIRE(equal_types(idx, var.type(), *type));
REQUIRE(!var.default_value());
REQUIRE(!var.is_mutable());
}
else if (var.name() == "b")
{
auto type = cpp_builtin_type::build(cpp_float);
REQUIRE(equal_types(idx, var.type(), *type));
// all initializers are unexposed
auto def = cpp_unexposed_expression::build(cpp_builtin_type::build(cpp_float),
cpp_token_string::tokenize("3.14f"));
REQUIRE(var.default_value());
REQUIRE(equal_expressions(var.default_value().value(), *def));
REQUIRE(!var.is_mutable());
}
else if (var.name() == "c")
{
auto type = cpp_builtin_type::build(cpp_char);
REQUIRE(equal_types(idx, var.type(), *type));
REQUIRE(!var.default_value());
REQUIRE(var.is_mutable());
}
else
REQUIRE(false);
});
REQUIRE(count == 3u);
}
TEST_CASE("cpp_bitfield")
{
auto code = R"(
struct foo
{
/// char a:3;
char a : 3;
/// mutable char b:2;
mutable char b : 2;
/// char:0;
char : 0;
/// char c:3;
char c : 3;
/// char:4;
char : 4;
};
)";
auto file = parse({}, "cpp_bitfield.cpp", code);
auto count = test_visit<cpp_bitfield>(*file, [&](const cpp_bitfield& bf) {
REQUIRE(!bf.default_value());
REQUIRE(equal_types({}, bf.type(), *cpp_builtin_type::build(cpp_char)));
if (bf.name() == "a")
{
REQUIRE(bf.no_bits() == 3u);
REQUIRE(!bf.is_mutable());
}
else if (bf.name() == "b")
{
REQUIRE(bf.no_bits() == 2u);
REQUIRE(bf.is_mutable());
}
else if (bf.name() == "c")
{
REQUIRE(bf.no_bits() == 3u);
REQUIRE(!bf.is_mutable());
}
else if (bf.name() == "")
{
REQUIRE(!bf.is_mutable());
if (bf.no_bits() != 0u && bf.no_bits() != 4u)
{
INFO(bf.no_bits());
REQUIRE(false);
}
}
else
REQUIRE(false);
});
REQUIRE(count == 5u);
}