47 lines
1.3 KiB
C++
47 lines
1.3 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef vm_NumberObject_h
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#define vm_NumberObject_h
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#include "jsnum.h"
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namespace js {
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class NumberObject : public NativeObject
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{
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/* Stores this Number object's [[PrimitiveValue]]. */
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static const unsigned PRIMITIVE_VALUE_SLOT = 0;
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public:
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static const unsigned RESERVED_SLOTS = 1;
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static const Class class_;
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/*
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* Creates a new Number object boxing the given number.
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* If proto is nullptr, then Number.prototype will be used instead.
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*/
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static inline NumberObject* create(JSContext* cx, double d,
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HandleObject proto = nullptr);
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double unbox() const {
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return getFixedSlot(PRIMITIVE_VALUE_SLOT).toNumber();
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}
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private:
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inline void setPrimitiveValue(double d) {
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setFixedSlot(PRIMITIVE_VALUE_SLOT, NumberValue(d));
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}
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/* For access to init, as Number.prototype is special. */
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friend JSObject*
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js::InitNumberClass(JSContext* cx, HandleObject global);
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};
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} // namespace js
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#endif /* vm_NumberObject_h */
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