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LibWeb: Avoid needless copies during Blob construction

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This commit is contained in:
Linus Groh 2022-07-17 00:34:25 +01:00
parent 5806eeec08
commit ac36d272d3
Notes: sideshowbarker 2024-07-17 17:40:13 +09:00 
Author: https://github.com/linusg
Commit: https://github.com/SerenityOS/serenity/commit/ac36d272d3
2 changed files with 4 additions and 5 deletions
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6
Userland/Libraries/LibWeb/FileAPI/Blob.cpp
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@ -12,7 +12,7 @@
namespace Web::FileAPI {
Blob::Blob(ByteBuffer const& byte_buffer, String const& type)
Blob::Blob(ByteBuffer byte_buffer, String type)
: m_byte_buffer(move(byte_buffer))
, m_type(move(type))
{
@ -41,7 +41,7 @@ DOM::ExceptionOr<NonnullRefPtr<Blob>> Blob::create(Optional<Vector<BlobPart>> co
}
// 4. Return a Blob object referring to bytes as its associated byte sequence, with its size set to the length of bytes, and its type set to the value of t from the substeps above.
return adopt_ref(*new Blob(byte_buffer, type));
return adopt_ref(*new Blob(move(byte_buffer), move(type)));
}
DOM::ExceptionOr<NonnullRefPtr<Blob>> Blob::create_with_global_object(Bindings::WindowObject&, Optional<Vector<BlobPart>> const& blob_parts, Optional<BlobPropertyBag> const& options)
@ -149,7 +149,7 @@ DOM::ExceptionOr<NonnullRefPtr<Blob>> Blob::slice(Optional<i64> start, Optional<
auto byte_buffer_or_error = m_byte_buffer.slice(relative_start, span);
if (byte_buffer_or_error.is_error())
return DOM::UnknownError::create("Out of memory."sv);
return adopt_ref(*new Blob(byte_buffer_or_error.release_value(), relative_content_type));
return adopt_ref(*new Blob(byte_buffer_or_error.release_value(), move(relative_content_type)));
}
// https://w3c.github.io/FileAPI/#dom-blob-text

3
Userland/Libraries/LibWeb/FileAPI/Blob.h
View file

@ -33,8 +33,7 @@ class Blob
public:
using WrapperType = Bindings::BlobWrapper;
Blob(ByteBuffer const& byte_buffer, String const& type);
Blob(ByteBuffer byte_buffer, String type);
static DOM::ExceptionOr<NonnullRefPtr<Blob>> create(Optional<Vector<BlobPart>> const& blob_parts = {}, Optional<BlobPropertyBag> const& options = {});
static DOM::ExceptionOr<NonnullRefPtr<Blob>> create_with_global_object(Bindings::WindowObject&, Optional<Vector<BlobPart>> const& blob_parts = {}, Optional<BlobPropertyBag> const& options = {});