AK+Userland: Remove nullability feature for the ByteBuffer type

Nobody seems to use this particular feature, in fact there were some
bugs which were uncovered by removing operator bool.
This commit is contained in:
Gunnar Beutner 2021-05-16 08:47:46 +02:00 committed by Andreas Kling
parent c4d0b0cd6b
commit 53d0150827
Notes: sideshowbarker 2024-07-18 18:01:38 +09:00
16 changed files with 12 additions and 36 deletions

View File

@ -28,7 +28,6 @@ public:
{
grow(other.size());
VERIFY(m_size == other.size());
VERIFY(!m_is_null);
__builtin_memcpy(data(), other.data(), other.size());
}
@ -96,10 +95,6 @@ public:
bool operator!=(ByteBuffer const& other) const { return !(*this == other); }
operator bool() const { return !is_null(); }
bool operator!() const { return is_null(); }
[[nodiscard]] bool is_null() const { return m_is_null; }
[[nodiscard]] u8& operator[](size_t i)
{
VERIFY(i < m_size);
@ -152,7 +147,6 @@ public:
void grow(size_t new_size)
{
m_is_null = false;
if (new_size <= m_size)
return;
if (new_size <= capacity()) {
@ -208,20 +202,17 @@ private:
ByteBuffer(size_t size)
{
grow(size);
VERIFY(!m_is_null);
VERIFY(m_size == size);
}
void move_from(ByteBuffer&& other)
{
m_is_null = other.m_is_null;
m_size = other.m_size;
if (other.m_size > inline_capacity) {
m_outline_buffer = other.m_outline_buffer;
m_outline_capacity = other.m_outline_capacity;
} else
__builtin_memcpy(m_inline_buffer, other.m_inline_buffer, other.m_size);
other.m_is_null = true;
other.m_size = 0;
}
@ -242,7 +233,6 @@ private:
size_t capacity() const { return is_inline() ? inline_capacity : m_outline_capacity; }
size_t m_size { 0 };
bool m_is_null { true };
union {
u8 m_inline_buffer[inline_capacity];
struct {

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@ -240,8 +240,6 @@ public:
template<typename BufferType>
[[nodiscard]] static String copy(const BufferType& buffer, ShouldChomp should_chomp = NoChomp)
{
if (buffer.is_null())
return {};
if (buffer.is_empty())
return empty();
return String((const char*)buffer.data(), buffer.size(), should_chomp);

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@ -150,8 +150,6 @@ public:
return false;
}
// NOTE: Vector::is_null() exists for the benefit of String::copy().
bool is_null() const { return false; }
bool is_empty() const { return size() == 0; }
ALWAYS_INLINE size_t size() const { return m_size; }
size_t capacity() const { return m_capacity; }

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@ -563,11 +563,6 @@ int HexEditor::find_and_highlight(ByteBuffer& needle, int start)
if (m_buffer.is_empty())
return -1;
if (needle.is_null()) {
dbgln("needle is null");
return -1;
}
auto raw_offset = memmem(m_buffer.data() + start, m_buffer.size(), needle.data(), needle.size());
if (raw_offset == NULL)
return -1;

View File

@ -189,7 +189,7 @@ void HexEditorWidget::initialize_menubar(GUI::Menubar& menubar)
}));
edit_menu.add_action(GUI::Action::create("Find &Next", { Mod_None, Key_F3 }, Gfx::Bitmap::load_from_file("/res/icons/16x16/find-next.png"), [&](const GUI::Action&) {
if (m_search_text.is_empty() || m_search_buffer.is_empty() || m_search_buffer.is_null()) {
if (m_search_text.is_empty() || m_search_buffer.is_empty()) {
GUI::MessageBox::show(window(), "Nothing to search for", "Not found", GUI::MessageBox::Type::Warning);
return;
}

View File

@ -33,8 +33,6 @@ const char* IODevice::error_string() const
int IODevice::read(u8* buffer, int length)
{
auto read_buffer = read(length);
if (read_buffer.is_null())
return 0;
memcpy(buffer, read_buffer.data(), length);
return read_buffer.size();
}
@ -151,8 +149,6 @@ ByteBuffer IODevice::read_all()
}
data.append((const u8*)read_buffer, nread);
}
if (data.is_empty())
return {};
return ByteBuffer::copy(data.data(), data.size());
}

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@ -110,7 +110,7 @@ void Job::on_socket_connected()
auto read_size = 64 * KiB;
auto payload = receive(read_size);
if (!payload) {
if (payload.is_empty()) {
if (eof()) {
finish_up();
return IterationDecision::Break;

View File

@ -283,7 +283,7 @@ void Job::on_socket_connected()
}
auto payload = receive(read_size);
if (!payload) {
if (payload.is_empty()) {
if (eof()) {
finish_up();
return IterationDecision::Break;

View File

@ -474,9 +474,7 @@ ssize_t TLSv12::handle_payload(ReadonlyBytes vbuffer)
}
break;
case Finished:
if (m_context.cached_handshake) {
m_context.cached_handshake.clear();
}
m_context.cached_handshake.clear();
if (m_context.handshake_messages[10] >= 1) {
dbgln("unexpected finished message");
payload_res = (i8)Error::UnexpectedMessage;

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@ -431,7 +431,7 @@ public:
if (type != CSS::Selector::SimpleSelector::Type::Universal) {
while (is_valid_selector_char(peek()))
buffer.append(consume_one());
PARSE_VERIFY(!buffer.is_null());
PARSE_VERIFY(!buffer.is_empty());
}
auto value = String::copy(buffer);

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@ -42,7 +42,7 @@ public:
bool is_failed() const { return m_failed; }
const String& error() const { return m_error; }
bool has_encoded_data() const { return !m_encoded_data.is_null(); }
bool has_encoded_data() const { return !m_encoded_data.is_empty(); }
const URL& url() const { return m_request.url(); }
const ByteBuffer& encoded_data() const { return m_encoded_data; }

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@ -47,7 +47,7 @@ void XMLHttpRequest::fire_progress_event(const String& event_name, u64 transmitt
String XMLHttpRequest::response_text() const
{
if (m_response_object.is_null())
if (m_response_object.is_empty())
return {};
return String::copy(m_response_object);
}

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@ -143,7 +143,7 @@ int perform_copy(const String& source, const String& destination)
while (true) {
print_progress();
auto buffer = source_file.read(65536);
if (buffer.is_null())
if (buffer.is_empty())
break;
if (!destination_file.write(buffer)) {
report_warning(String::formatted("Failed to write to destination file: {}", destination_file.error_string()));

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@ -168,7 +168,7 @@ Vector<DNSAnswer> MulticastDNS::lookup(const DNSName& name, DNSRecordType record
}
auto buffer = receive(1024);
if (!buffer)
if (buffer.is_empty())
return {};
auto optional_packet = DNSPacket::from_raw_packet(buffer.data(), buffer.size());
if (!optional_packet.has_value()) {

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@ -41,7 +41,7 @@ void Client::start()
{
m_socket->on_ready_to_read = [this] {
auto raw_request = m_socket->read_all();
if (raw_request.is_null()) {
if (raw_request.is_empty()) {
die();
return;
}

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@ -106,7 +106,8 @@ int parse_args(int argc, char** argv, Vector<String>& files, DuOption& du_option
auto file = Core::File::construct(exclude_from);
bool success = file->open(Core::OpenMode::ReadOnly);
VERIFY(success);
if (const auto buff = file->read_all()) {
const auto buff = file->read_all();
if (!buff.is_empty()) {
String patterns = String::copy(buff, Chomp);
du_option.excluded_patterns.append(patterns.split('\n'));
}