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179 lines (159 loc) · 5.39 KB
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// Copyright (C) 2017-2022 Jonathan Müller and cppast contributors
// SPDX-License-Identifier: MIT
#include <cppast/cpp_preprocessor.hpp>
#include "test_parser.hpp"
using namespace cppast;
TEST_CASE("cpp_macro_definition")
{
auto code = R"(
#include <iostream>
#define G
/// #define A
#define A
/// #define B hello
#define B hello
namespace ns {}
/// #define C(x,y) x##_name
#define C(x, y) x##_name
/// #define D(...) __VA_ARGS__
#define D(...) __VA_ARGS__
/// #define E() barbaz
#define E() bar\
baz
namespace ns2
{
/// #define F () bar
#define F () bar
#undef G
}
)";
const char* order[] = {"A", "B", "ns", "C", "D", "E", "ns2", "F"};
auto check_macro
= [](const cpp_macro_definition& macro, const char* replacement, const char* args) {
REQUIRE(macro.replacement() == replacement);
if (args)
{
REQUIRE(macro.is_function_like());
std::string params;
for (auto& param : macro.parameters())
{
if (!params.empty())
params += ",";
params += param.name();
}
if (macro.is_variadic())
{
if (!params.empty())
params += ",";
params += "...";
}
REQUIRE(params == args);
}
else
{
REQUIRE(!macro.is_function_like());
REQUIRE(!macro.is_variadic());
REQUIRE(macro.parameters().empty());
}
};
auto file = parse({}, "cpp_macro_definition.cpp", code);
auto count = test_visit<cpp_macro_definition>(*file, [&](const cpp_macro_definition& macro) {
if (macro.name() == "A")
check_macro(macro, "", nullptr);
else if (macro.name() == "B")
check_macro(macro, "hello", nullptr);
else if (macro.name() == "C")
check_macro(macro, "x##_name", "x,y");
else if (macro.name() == "D")
check_macro(macro, "__VA_ARGS__", "...");
else if (macro.name() == "E")
check_macro(macro, "barbaz", "");
else if (macro.name() == "F")
check_macro(macro, "() bar", nullptr);
else
REQUIRE(false);
});
REQUIRE(count == 6u);
auto index = 0u;
for (auto& child : *file)
{
if (child.kind() == cpp_entity_kind::include_directive_t)
continue;
REQUIRE(child.name() == order[index++]);
}
}
TEST_CASE("command line macro definition")
{
write_file("command_line_macro_definition.hpp", "NAME foo;");
write_file("command_line_macro_definition.cpp",
R"(#include "command_line_macro_definition.hpp")");
struct test_logger : diagnostic_logger
{
mutable bool error = false;
bool do_log(const char* source, const diagnostic& d) const override
{
error = true;
default_logger()->log(source, d);
return false;
}
} logger;
libclang_compile_config config;
config.define_macro("NAME", "int");
libclang_parser parser{type_safe::ref(logger)};
parser.parse({}, "command_line_macro_definition.cpp", config);
REQUIRE(!parser.error());
REQUIRE(!logger.error);
}
TEST_CASE("cpp_include_directive")
{
write_file("cpp_include_directive-header.hpp", R"(
#define FOO a\
b
)");
auto header_a = R"(
/// #include <iostream>
#include <iostream>
/// #include "cpp_include_directive-header.hpp"
#include "cpp_include_directive-header.hpp"
)";
auto header_b = R"(
/// #include "header_a.hpp"
#include "header_a.hpp"
)";
cpp_entity_index idx;
auto file_a = parse(idx, "header_a.hpp", header_a);
auto file_b = parse(idx, "header_b.hpp", header_b);
auto count
= test_visit<cpp_include_directive>(*file_a, [&](const cpp_include_directive& include) {
if (include.name() == "iostream")
{
REQUIRE(include.target().name() == include.name());
REQUIRE(include.include_kind() == cppast::cpp_include_kind::system);
REQUIRE(include.target().get(idx).empty());
REQUIRE_THAT(include.full_path(), Catch::EndsWith("iostream"));
}
else if (include.name() == "cpp_include_directive-header.hpp")
{
REQUIRE(include.target().name() == include.name());
REQUIRE(include.include_kind() == cppast::cpp_include_kind::local);
REQUIRE(include.target().get(idx).empty());
REQUIRE(include.full_path() == "./cpp_include_directive-header.hpp");
}
else
REQUIRE(false);
});
REQUIRE(count == 2u);
count = test_visit<cpp_include_directive>(*file_b, [&](const cpp_include_directive& include) {
if (include.name() == "header_a.hpp")
{
REQUIRE(include.target().name() == include.name());
REQUIRE(include.include_kind() == cppast::cpp_include_kind::local);
REQUIRE(
equal_ref(idx, include.target(), cpp_file_ref(cpp_entity_id(""), "header_a.hpp")));
REQUIRE(include.full_path() == "./header_a.hpp");
}
else
REQUIRE(false);
});
REQUIRE(count == 1u);
}