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js/src/vm/StringObject.h@129ffea94266 (annotated)

js/src/vm/StringObject.h

Sat, 03 Jan 2015 20:18:00 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Sat, 03 Jan 2015 20:18:00 +0100

branch

TOR_BUG_3246

changeset 7

129ffea94266

permissions

-rw-r--r--

Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.

michael@0	1	/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
michael@0	2	* vim: set ts=8 sts=4 et sw=4 tw=99:
michael@0	3	* This Source Code Form is subject to the terms of the Mozilla Public
michael@0	4	* License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0	5	* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0	6
michael@0	7	#ifndef vm_StringObject_h
michael@0	8	#define vm_StringObject_h
michael@0	9
michael@0	10	#include "jsobj.h"
michael@0	11	#include "jsstr.h"
michael@0	12
michael@0	13	#include "vm/Shape.h"
michael@0	14
michael@0	15	namespace js {
michael@0	16
michael@0	17	class StringObject : public JSObject
michael@0	18	{
michael@0	19	static const unsigned PRIMITIVE_VALUE_SLOT = 0;
michael@0	20	static const unsigned LENGTH_SLOT = 1;
michael@0	21
michael@0	22	public:
michael@0	23	static const unsigned RESERVED_SLOTS = 2;
michael@0	24
michael@0	25	static const Class class_;
michael@0	26
michael@0	27	/*
michael@0	28	* Creates a new String object boxing the given string. The object's
michael@0	29	* [[Prototype]] is determined from context.
michael@0	30	*/
michael@0	31	static inline StringObject *create(JSContext *cx, HandleString str,
michael@0	32	NewObjectKind newKind = GenericObject);
michael@0	33
michael@0	34	JSString *unbox() const {
michael@0	35	return getFixedSlot(PRIMITIVE_VALUE_SLOT).toString();
michael@0	36	}
michael@0	37
michael@0	38	inline size_t length() const {
michael@0	39	return size_t(getFixedSlot(LENGTH_SLOT).toInt32());
michael@0	40	}
michael@0	41
michael@0	42	static size_t offsetOfPrimitiveValue() {
michael@0	43	return getFixedSlotOffset(PRIMITIVE_VALUE_SLOT);
michael@0	44	}
michael@0	45	static size_t offsetOfLength() {
michael@0	46	return getFixedSlotOffset(LENGTH_SLOT);
michael@0	47	}
michael@0	48
michael@0	49	private:
michael@0	50	inline bool init(JSContext *cx, HandleString str);
michael@0	51
michael@0	52	void setStringThis(JSString *str) {
michael@0	53	JS_ASSERT(getReservedSlot(PRIMITIVE_VALUE_SLOT).isUndefined());
michael@0	54	setFixedSlot(PRIMITIVE_VALUE_SLOT, StringValue(str));
michael@0	55	setFixedSlot(LENGTH_SLOT, Int32Value(int32_t(str->length())));
michael@0	56	}
michael@0	57
michael@0	58	/* For access to init, as String.prototype is special. */
michael@0	59	friend JSObject *
michael@0	60	::js_InitStringClass(JSContext *cx, js::HandleObject global);
michael@0	61
michael@0	62	/* For access to assignInitialShape. */
michael@0	63	friend bool
michael@0	64	EmptyShape::ensureInitialCustomShape<StringObject>(ExclusiveContext *cx,
michael@0	65	Handle<StringObject*> obj);
michael@0	66
michael@0	67	/*
michael@0	68	* Compute the initial shape to associate with fresh String objects, which
michael@0	69	* encodes the initial length property. Return the shape after changing
michael@0	70	* |obj|'s last property to it.
michael@0	71	*/
michael@0	72	static Shape *
michael@0	73	assignInitialShape(ExclusiveContext *cx, Handle<StringObject*> obj);
michael@0	74	};
michael@0	75
michael@0	76	} // namespace js
michael@0	77
michael@0	78	#endif /* vm_StringObject_h */