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LibAudio: Make LoaderPlugin::error_string return String&

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Previously, error_string() returned char* which is bad Serenity style
and caused issues when other error handling methods were tried. As both
WavLoader and (future) FLAC loader store a String internally for the
error message, it makes sense to return a String reference instead.
This commit is contained in:
kleines Filmröllchen 2021-06-24 23:56:28 +02:00 • committed by Ali Mohammad Pur
parent d599a14545
commit 488de12ed4
2 changed files with 6 additions and 3 deletions
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7
Userland/Libraries/LibAudio/Loader.h
View file

@ -15,6 +15,9 @@
namespace Audio {
static const String empty_string = "";
static String no_plugin_error = "No loader plugin available";
class LoaderPlugin {
public:
virtual ~LoaderPlugin() { }
@ -22,7 +25,7 @@ public:
virtual bool sniff() = 0;
virtual bool has_error() { return false; }
virtual const char* error_string() { return ""; }
virtual const String& error_string() { return empty_string; }
virtual RefPtr<Buffer> get_more_samples(size_t max_bytes_to_read_from_input = 128 * KiB) = 0;
@ -52,7 +55,7 @@ public:
static NonnullRefPtr<Loader> create(const ByteBuffer& buffer) { return adopt_ref(*new Loader(buffer)); }
bool has_error() const { return m_plugin ? m_plugin->has_error() : true; }
const char* error_string() const { return m_plugin ? m_plugin->error_string() : "No loader plugin available"; }
const String& error_string() const { return m_plugin ? m_plugin->error_string() : no_plugin_error; }
RefPtr<Buffer> get_more_samples(size_t max_bytes_to_read_from_input = 128 * KiB) const { return m_plugin ? m_plugin->get_more_samples(max_bytes_to_read_from_input) : nullptr; }

2
Userland/Libraries/LibAudio/WavLoader.h
View file

@ -39,7 +39,7 @@ public:
virtual bool sniff() override { return valid; }
virtual bool has_error() override { return !m_error_string.is_null(); }
virtual const char* error_string() override { return m_error_string.characters(); }
virtual const String& error_string() override { return m_error_string; }
// The Buffer returned contains input data resampled at the
// destination audio device sample rate.