/usr/include/thunderbird-11.0.1/jspropertytree.h is in thunderbird-dev 11.0.1+build1-0ubuntu2.
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/* vim: set ts=40 sw=4 et tw=99: */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is the Mozilla SpiderMonkey property tree implementation
*
* The Initial Developer of the Original Code is
* Mozilla Foundation
* Portions created by the Initial Developer are Copyright (C) 2002-2010
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Brendan Eich <brendan@mozilla.org>
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef jspropertytree_h___
#define jspropertytree_h___
#include "jsprvtd.h"
#include "js/HashTable.h"
namespace js {
struct ShapeHasher {
typedef js::Shape *Key;
typedef const js::Shape *Lookup;
static inline HashNumber hash(const Lookup l);
static inline bool match(Key k, Lookup l);
};
typedef HashSet<js::Shape *, ShapeHasher, SystemAllocPolicy> KidsHash;
class KidsPointer {
private:
enum {
SHAPE = 0,
HASH = 1,
TAG = 1
};
jsuword w;
public:
bool isNull() const { return !w; }
void setNull() { w = 0; }
bool isShape() const { return (w & TAG) == SHAPE && !isNull(); }
js::Shape *toShape() const {
JS_ASSERT(isShape());
return reinterpret_cast<js::Shape *>(w & ~jsuword(TAG));
}
void setShape(js::Shape *shape) {
JS_ASSERT(shape);
JS_ASSERT((reinterpret_cast<jsuword>(shape) & TAG) == 0);
w = reinterpret_cast<jsuword>(shape) | SHAPE;
}
bool isHash() const { return (w & TAG) == HASH; }
KidsHash *toHash() const {
JS_ASSERT(isHash());
return reinterpret_cast<KidsHash *>(w & ~jsuword(TAG));
}
void setHash(KidsHash *hash) {
JS_ASSERT(hash);
JS_ASSERT((reinterpret_cast<jsuword>(hash) & TAG) == 0);
w = reinterpret_cast<jsuword>(hash) | HASH;
}
#ifdef DEBUG
void checkConsistency(const js::Shape *aKid) const;
#endif
};
class PropertyTree
{
friend struct ::JSFunction;
JSCompartment *compartment;
bool insertChild(JSContext *cx, js::Shape *parent, js::Shape *child);
PropertyTree();
public:
enum { MAX_HEIGHT = 128 };
PropertyTree(JSCompartment *comp)
: compartment(comp)
{
}
js::Shape *newShape(JSContext *cx);
js::Shape *getChild(JSContext *cx, js::Shape *parent, const js::Shape &child);
#ifdef DEBUG
static void dumpShapes(JSContext *cx);
static void meter(JSBasicStats *bs, js::Shape *node);
#endif
};
} /* namespace js */
#endif /* jspropertytree_h___ */
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