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LibJS: Store Instant's and ZonedDateTime's m_nanoseconds as a const&

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There's no need for these to be non-const. Suggested by @IdanHo in
https://github.com/SerenityOS/serenity/pull/9904#discussion_r704960184.

Perhaps we can make more internal slots of these and other objects const
references as well, but that's a bit more involved as they are used by
various functions expecting non-const references.
This commit is contained in:
Linus Groh 2021-09-09 21:18:08 +01:00
parent e4c07c5b8f
commit 5ae6ad8557
4 changed files with 12 additions and 14 deletions
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7
Userland/Libraries/LibJS/Runtime/Temporal/Instant.h
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@ -18,17 +18,16 @@ class Instant final : public Object {
JS_OBJECT(Instant, Object);
public:
Instant(BigInt& nanoseconds, Object& prototype);
Instant(BigInt const& nanoseconds, Object& prototype);
virtual ~Instant() override = default;
[[nodiscard]] BigInt const& nanoseconds() const { return m_nanoseconds; }
[[nodiscard]] BigInt& nanoseconds() { return m_nanoseconds; }
private:
virtual void visit_edges(Visitor&) override;
// 8.4 Properties of Temporal.Instant Instances, https://tc39.es/proposal-temporal/#sec-properties-of-temporal-instant-instances
BigInt& m_nanoseconds; // [[Nanoseconds]]
BigInt const& m_nanoseconds; // [[Nanoseconds]]
};
// -86400 * 10^17
@ -37,7 +36,7 @@ const auto INSTANT_NANOSECONDS_MIN = "-8640000000000000000000"_sbigint;
const auto INSTANT_NANOSECONDS_MAX = "8640000000000000000000"_sbigint;
bool is_valid_epoch_nanoseconds(BigInt const& epoch_nanoseconds);
Instant* create_temporal_instant(GlobalObject&, BigInt& nanoseconds, FunctionObject const* new_target = nullptr);
Instant* create_temporal_instant(GlobalObject&, BigInt const& nanoseconds, FunctionObject const* new_target = nullptr);
Instant* to_temporal_instant(GlobalObject&, Value item);
BigInt* parse_temporal_instant(GlobalObject&, String const& iso_string);
i32 compare_epoch_nanoseconds(BigInt const&, BigInt const&);