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LibCore+Everywhere: Make Core::Stream read_line() return StringView

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Similar reasoning to making Core::Stream::read() return Bytes, except
that every user of read_line() creates a StringView from the result, so
let's just return one right away.
This commit is contained in:
Sam Atkins 2022-04-15 14:52:33 +01:00 • committed by Tim Flynn
parent c4134e9794
commit d564cf1e89
9 changed files with 40 additions and 54 deletions
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4
Userland/Libraries/LibCore/ConfigFile.cpp
View file

@ -88,9 +88,7 @@ ErrorOr<void> ConfigFile::reparse()
auto buffer = TRY(ByteBuffer::create_uninitialized(4096));
while (TRY(m_file->can_read_line())) {
auto length = TRY(m_file->read_line(buffer));
StringView line { buffer.data(), length };
auto line = TRY(m_file->read_line(buffer));
size_t i = 0;
while (i < line.length() && (line[i] == ' ' || line[i] == '\t' || line[i] == '\n'))

12
Userland/Libraries/LibCore/Stream.h
View file

@ -557,10 +557,10 @@ public:
// Reads into the buffer until \n is encountered.
// The size of the Bytes object is the maximum amount of bytes that will be
// read. Returns the amount of bytes read.
ErrorOr<size_t> read_line(Bytes buffer)
// read. Returns the bytes read as a StringView.
ErrorOr<StringView> read_line(Bytes buffer)
{
return TRY(read_until(buffer, "\n"sv)).size();
return StringView { TRY(read_until(buffer, "\n"sv)) };
}
ErrorOr<Bytes> read_until(Bytes buffer, StringView candidate)
@ -769,7 +769,7 @@ public:
return m_helper.stream().truncate(length);
}
ErrorOr<size_t> read_line(Bytes buffer) { return m_helper.read_line(move(buffer)); }
ErrorOr<StringView> read_line(Bytes buffer) { return m_helper.read_line(move(buffer)); }
ErrorOr<Bytes> read_until(Bytes buffer, StringView candidate) { return m_helper.read_until(move(buffer), move(candidate)); }
template<size_t N>
ErrorOr<Bytes> read_until_any_of(Bytes buffer, Array<StringView, N> candidates) { return m_helper.read_until_any_of(move(buffer), move(candidates)); }
@ -790,7 +790,7 @@ private:
class BufferedSocketBase : public Socket {
public:
virtual ErrorOr<size_t> read_line(Bytes buffer) = 0;
virtual ErrorOr<StringView> read_line(Bytes buffer) = 0;
virtual ErrorOr<Bytes> read_until(Bytes buffer, StringView candidate) = 0;
virtual ErrorOr<bool> can_read_line() = 0;
virtual size_t buffer_size() const = 0;
@ -838,7 +838,7 @@ public:
virtual ErrorOr<void> set_close_on_exec(bool enabled) override { return m_helper.stream().set_close_on_exec(enabled); }
virtual void set_notifications_enabled(bool enabled) override { m_helper.stream().set_notifications_enabled(enabled); }
virtual ErrorOr<size_t> read_line(Bytes buffer) override { return m_helper.read_line(move(buffer)); }
virtual ErrorOr<StringView> read_line(Bytes buffer) override { return m_helper.read_line(move(buffer)); }
virtual ErrorOr<Bytes> read_until(Bytes buffer, StringView candidate) override { return m_helper.read_until(move(buffer), move(candidate)); }
template<size_t N>
ErrorOr<Bytes> read_until_any_of(Bytes buffer, Array<StringView, N> candidates) { return m_helper.read_until_any_of(move(buffer), move(candidates)); }