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https://github.com/LadybirdBrowser/ladybird.git
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4d10911f96
If we are out of memory, we can't try to allocate a string that could fail as well. When Error is converted to String, this would result in an endless OOM-throwing loop. Instead, pre-allocate the string on the VM, and use it to construct the Error. Note that as of this commit, the OOM string is still a DeprecatedString. This is just preporatory for Error's conversion to String.
45 lines
1.2 KiB
C++
45 lines
1.2 KiB
C++
/*
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* Copyright (c) 2023, Tim Flynn <trflynn89@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/Format.h>
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#include <AK/StringBuilder.h>
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#include <AK/StringView.h>
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#include <LibJS/Forward.h>
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#include <LibJS/Runtime/Completion.h>
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#include <LibJS/Runtime/ErrorTypes.h>
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#include <LibJS/Runtime/VM.h>
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namespace JS {
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class ThrowableStringBuilder : private AK::StringBuilder {
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public:
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explicit ThrowableStringBuilder(VM&);
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ThrowCompletionOr<void> append(char);
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ThrowCompletionOr<void> append(StringView);
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ThrowCompletionOr<void> append(Utf16View const&);
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ThrowCompletionOr<void> append_code_point(u32 value);
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ThrowCompletionOr<String> to_string() const;
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template<typename... Parameters>
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ThrowCompletionOr<void> appendff(CheckedFormatString<Parameters...>&& fmtstr, Parameters const&... parameters)
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{
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AK::VariadicFormatParams<AK::AllowDebugOnlyFormatters::No, Parameters...> variadic_format_params { parameters... };
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TRY_OR_THROW_OOM(m_vm, vformat(*this, fmtstr.view(), variadic_format_params));
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return {};
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}
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using AK::StringBuilder::is_empty;
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using AK::StringBuilder::string_view;
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using AK::StringBuilder::trim;
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private:
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VM& m_vm;
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};
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}
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