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Kernel: Add formatter function for OwnPtr<KString>

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This adds a formatter function for OwnPtr<KString>. This is added mainly
because lots of dbgln() statements generate Strings (such as absolute
paths) which are only used for debugging. Instead of catching possible
OOM situations at all the dbgln() callsites, this makes it possible to
let the formatter code handle those situations by outputting "[out of
memory]" if the OwnPtr is null.
This commit is contained in:
Max Wipfli 2021-07-06 12:55:08 +02:00 committed by Andreas Kling
parent 95f769ea51
commit 0f8a6e574c
Notes: sideshowbarker 2024-07-18 10:14:05 +09:00 
Author: https://github.com/MaxWipfli
Commit: https://github.com/SerenityOS/serenity/commit/0f8a6e574cd
Pull-request: https://github.com/SerenityOS/serenity/pull/8492
Reviewed-by: https://github.com/alimpfard
1 changed files with 12 additions and 1 deletions
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13
Kernel/KString.h
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@ -48,7 +48,18 @@ template<>
struct Formatter<Kernel::KString> : Formatter<StringView> {
void format(FormatBuilder& builder, Kernel::KString const& value)
{
Formatter<StringView>::format(builder, value.characters());
Formatter<StringView>::format(builder, value.view());
}
};
template<>
struct Formatter<OwnPtr<Kernel::KString>> : Formatter<StringView> {
void format(FormatBuilder& builder, OwnPtr<Kernel::KString> const& value)
{
if (value)
Formatter<StringView>::format(builder, value->view());
else
Formatter<StringView>::format(builder, "[out of memory]"sv);
}
};