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LibWeb: Make 'optional BufferSource' IDL arguments actually optional

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Previously this was compiled to require an object despite the IDL file
specifying 'optional'.
This commit makes IDLGenerator respect this modifier, and fixes the only
affected instance.
This commit is contained in:
Ali Mohammad Pur
2023-05-30 09:48:23 +03:30
committed by Andreas Kling
parent 540ea9f1c4
commit 0e3fb39a0a
5 changed files with 36 additions and 4 deletions
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7
Userland/Libraries/LibWeb/Encoding/TextDecoder.cpp
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@@ -44,11 +44,14 @@ JS::ThrowCompletionOr<void> TextDecoder::initialize(JS::Realm& realm)
}
// https://encoding.spec.whatwg.org/#dom-textdecoder-decode
WebIDL::ExceptionOr<DeprecatedString> TextDecoder::decode(JS::Handle<JS::Object> const& input) const
WebIDL::ExceptionOr<DeprecatedString> TextDecoder::decode(Optional<JS::Handle<JS::Object>> const& input) const
{
if (!input.has_value())
return TRY_OR_THROW_OOM(vm(), m_decoder.to_utf8({}));
// FIXME: Implement the streaming stuff.
auto data_buffer_or_error = WebIDL::get_buffer_source_copy(*input.cell());
auto data_buffer_or_error = WebIDL::get_buffer_source_copy(*input->cell());
if (data_buffer_or_error.is_error())
return WebIDL::OperationError::create(realm(), "Failed to copy bytes from ArrayBuffer");
auto& data_buffer = data_buffer_or_error.value();