ladybird/Userland/Libraries/LibJS/Runtime/ValueTraits.h

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/*
* Copyright (c) 2020-2021, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2020-2021, Linus Groh <linusg@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibJS/Runtime/PrimitiveString.h>
#include <LibJS/Runtime/Value.h>
namespace JS {
struct ValueTraits : public Traits<Value> {
static unsigned hash(Value value)
{
VERIFY(!value.is_empty());
if (value.is_string())
return value.as_string().string().hash();
if (value.is_bigint())
return value.as_bigint().big_integer().hash();
if (value.is_negative_zero())
value = Value(0);
return u64_hash(value.encoded()); // FIXME: Is this the best way to hash pointers, doubles & ints?
}
static bool equals(const Value a, const Value b)
{
return same_value_zero(a, b);
}
};
}