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LibWeb: Add and use a helper to reject a promise with an exception

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This commit is contained in:
Sam Atkins
2024-03-08 15:37:28 +00:00
committed by Tim Flynn
parent 24951a039e
commit 4bdb7dba8c
Notes: sideshowbarker 2024-07-17 00:59:43 +09:00 
Author: https://github.com/AtkinsSJ
Commit: https://github.com/SerenityOS/serenity/commit/4bdb7dba8c
Pull-request: https://github.com/SerenityOS/serenity/pull/23526
Reviewed-by: https://github.com/trflynn89 ✅
10 changed files with 42 additions and 52 deletions
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8
Userland/Libraries/LibWeb/WebIDL/ExceptionOr.h
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@@ -32,6 +32,8 @@ struct SimpleException {
Variant<String, StringView> message;
};
using Exception = Variant<SimpleException, JS::NonnullGCPtr<DOMException>, JS::Completion>;
template<typename ValueType>
class [[nodiscard]] ExceptionOr {
public:
@@ -78,7 +80,7 @@ public:
VERIFY(completion.is_error());
}
ExceptionOr(Variant<SimpleException, JS::NonnullGCPtr<DOMException>, JS::Completion> exception)
ExceptionOr(Exception exception)
: m_result_or_exception(move(exception))
{
if (auto* completion = m_result_or_exception.template get_pointer<JS::Completion>())
@@ -100,7 +102,7 @@ public:
return move(m_result_or_exception.template get<ValueType>());
}
Variant<SimpleException, JS::NonnullGCPtr<DOMException>, JS::Completion> exception() const
Exception exception() const
{
return m_result_or_exception.template downcast<SimpleException, JS::NonnullGCPtr<DOMException>, JS::Completion>();
}
@@ -118,7 +120,7 @@ public:
// These are for compatibility with the TRY() macro in AK.
[[nodiscard]] bool is_error() const { return is_exception(); }
Variant<SimpleException, JS::NonnullGCPtr<DOMException>, JS::Completion> release_error() { return exception(); }
Exception release_error() { return exception(); }
private:
// https://webidl.spec.whatwg.org/#idl-exceptions