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LibCpp: Support for parsing c-style fixed arrays (arr[2])

Browse source 
Also adds tests for finding declaration of arrays inside
CppComprehension which requires proper parsing for passing.

Side-effect of this patch: if we ctrl+click on array variables, it
should jump to the correct declaration inside HackStudio.
This commit is contained in:
iyush 2023-04-15 16:40:40 +02:00 • committed by Sam Atkins
parent 34b04271f4
commit ac435f914c
7 changed files with 184 additions and 8 deletions
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80
Userland/Libraries/LibCodeComprehension/Cpp/Tests.cpp
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@ -33,6 +33,12 @@ static bool s_some_test_failed = false;
return; \
} while (0)
#define RUN(function) \
function; \
if (s_some_test_failed) { \
return 1; \
}
constexpr auto TESTS_ROOT_DIR = "/home/anon/Tests/cpp-tests/comprehension"sv;
class FileDB : public CodeComprehension::FileDB {
@ -61,18 +67,24 @@ static void test_complete_local_args();
static void test_complete_local_vars();
static void test_complete_type();
static void test_find_variable_definition();
static void test_find_array_variable_declaration_single();
static void test_find_array_variable_declaration_single_empty();
static void test_find_array_variable_declaration_double();
static void test_complete_includes();
static void test_parameters_hint();
int run_tests()
{
test_complete_local_args();
test_complete_local_vars();
test_complete_type();
test_find_variable_definition();
test_complete_includes();
test_parameters_hint();
return s_some_test_failed ? 1 : 0;
RUN(test_complete_local_args());
RUN(test_complete_local_vars());
RUN(test_complete_type());
RUN(test_find_variable_definition());
RUN(test_find_array_variable_declaration_single());
RUN(test_find_array_variable_declaration_single_empty());
RUN(test_find_array_variable_declaration_double());
RUN(test_complete_includes());
RUN(test_parameters_hint());
return 0;
}
static void add_file(FileDB& filedb, DeprecatedString const& name)
@ -145,6 +157,60 @@ void test_find_variable_definition()
FAIL("wrong declaration location");
}
void test_find_array_variable_declaration_single()
{
I_TEST(Find 1D Array as a Variable Declaration)
FileDB filedb;
auto filename = "find_array_variable_declaration.cpp";
add_file(filedb, filename);
CodeComprehension::Cpp::CppComprehensionEngine engine(filedb);
auto position = engine.find_declaration_of(filename, { 3, 6 });
if (!position.has_value())
FAIL("declaration not found");
if (position.value().file == filename && position.value().line == 2 && position.value().column >= 4)
PASS;
printf("Found at position %zu %zu\n", position.value().line, position.value().column);
FAIL("wrong declaration location");
}
void test_find_array_variable_declaration_single_empty()
{
I_TEST(Find 1D Empty size Array as a Variable Declaration)
FileDB filedb;
auto filename = "find_array_variable_declaration.cpp";
add_file(filedb, filename);
CodeComprehension::Cpp::CppComprehensionEngine engine(filedb);
auto position = engine.find_declaration_of(filename, { 6, 6 });
if (!position.has_value())
FAIL("declaration not found");
if (position.value().file == filename && position.value().line == 5 && position.value().column >= 4)
PASS;
printf("Found at position %zu %zu\n", position.value().line, position.value().column);
FAIL("wrong declaration location");
}
void test_find_array_variable_declaration_double()
{
I_TEST(Find 2D Array as a Variable Declaration)
FileDB filedb;
auto filename = "find_array_variable_declaration.cpp";
add_file(filedb, filename);
CodeComprehension::Cpp::CppComprehensionEngine engine(filedb);
auto position = engine.find_declaration_of(filename, { 9, 6 });
if (!position.has_value())
FAIL("declaration not found");
if (position.value().file == filename && position.value().line == 8 && position.value().column >= 4)
PASS;
printf("Found at position %zu %zu\n", position.value().line, position.value().column);
FAIL("wrong declaration location");
}
void test_complete_includes()
{
I_TEST(Complete include statements)