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AK: Remove the fallible constructor from FixedMemoryStream

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This commit is contained in:
Tim Schumacher 2023-01-30 11:05:43 +01:00 • committed by Linus Groh
parent 8b2f23d016
commit 220fbcaa7e
31 changed files with 185 additions and 209 deletions
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16
Userland/Libraries/LibGfx/ICOLoader.cpp
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@ -116,14 +116,14 @@ static size_t find_largest_image(ICOLoadingContext const& context)
static ErrorOr<void> load_ico_directory(ICOLoadingContext& context)
{
auto stream = TRY(FixedMemoryStream::construct({ context.data, context.data_size }));
FixedMemoryStream stream { { context.data, context.data_size } };
auto image_count = TRY(decode_ico_header(*stream));
auto image_count = TRY(decode_ico_header(stream));
if (image_count == 0)
return Error::from_string_literal("ICO file has no images");
for (size_t i = 0; i < image_count; ++i) {
auto desc = TRY(decode_ico_direntry(*stream));
auto desc = TRY(decode_ico_direntry(stream));
if (desc.offset + desc.size < desc.offset // detect integer overflow
|| (desc.offset + desc.size) > context.data_size) {
dbgln_if(ICO_DEBUG, "load_ico_directory: offset: {} size: {} doesn't fit in ICO size: {}", desc.offset, desc.size, context.data_size);
@ -183,8 +183,8 @@ ErrorOr<void> ICOImageDecoderPlugin::load_ico_bitmap(ICOLoadingContext& context,
ErrorOr<bool> ICOImageDecoderPlugin::sniff(ReadonlyBytes data)
{
auto stream = TRY(FixedMemoryStream::construct(data));
return !decode_ico_header(*stream).is_error();
FixedMemoryStream stream { data };
return !decode_ico_header(stream).is_error();
}
ErrorOr<NonnullOwnPtr<ImageDecoderPlugin>> ICOImageDecoderPlugin::create(ReadonlyBytes data)
@ -233,10 +233,8 @@ bool ICOImageDecoderPlugin::set_nonvolatile(bool& was_purged)
bool ICOImageDecoderPlugin::initialize()
{
auto stream_or_error = FixedMemoryStream::construct(ReadonlyBytes { m_context->data, m_context->data_size });
if (stream_or_error.is_error())
return false;
return !decode_ico_header(*stream_or_error.value()).is_error();
FixedMemoryStream stream { { m_context->data, m_context->data_size } };
return !decode_ico_header(stream).is_error();
}
bool ICOImageDecoderPlugin::is_animated()