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LibJS: Stop using Optional<Value> in favor of Value's empty state

JS::Value already has the empty state ({} or Value() gives you one.)
Use this instead of wrapping Value in Optional in some places.
I've also added Value::value_or(Value) so you can easily provide a
fallback value when one is not present.
This commit is contained in:
Andreas Kling 2020-04-25 18:43:34 +02:00
parent 5adf4901df
commit 35aea2e454
14 changed files with 60 additions and 48 deletions

View file

@ -164,6 +164,13 @@ public:
Object* to_object(Heap&) const;
Value value_or(Value fallback) const
{
if (is_empty())
return fallback;
return *this;
}
private:
Type m_type { Type::Empty };