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@@ -1,120 +0,0 @@
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-/*
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- * Copyright (C)2005-2012 Haxe Foundation
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- *
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- * Permission is hereby granted, free of charge, to any person obtaining a
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- * copy of this software and associated documentation files (the "Software"),
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- * to deal in the Software without restriction, including without limitation
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- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
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- * and/or sell copies of the Software, and to permit persons to whom the
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- * Software is furnished to do so, subject to the following conditions:
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- *
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- * The above copyright notice and this permission notice shall be included in
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- * all copies or substantial portions of the Software.
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- *
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- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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- * DEALINGS IN THE SOFTWARE.
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- */
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-@:native('haxe.lang.FieldLookup')
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-@:static private class FieldLookup
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-{
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-
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- @:private private static var fieldIds:Array<Int>;
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- @:private private static var fields:Array<String>;
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-
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- //s cannot be null here
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- private static inline function doHash(s:String):Int
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- {
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- var acc = 0; //alloc_int
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- for (i in 0...s.length)
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- {
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- acc = (( 223 * (acc >> 1) + s.charCodeAt(i) ) << 1);
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- }
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-
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- return acc >>> 1; //always positive
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- }
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-
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- public static function lookupHash(key:Int):String
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- {
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- //start of binary search algorithm
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- var ids = fieldIds;
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- var min = 0;
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- var max = ids.length;
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-
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- while (min < max)
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- {
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- var mid = Std.int(min + (max - min) / 2); //overflow safe
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- var imid = ids[mid];
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- if (key < imid)
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- {
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- max = mid;
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- } else if (key > imid) {
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- min = mid + 1;
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- } else {
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- return fields[mid];
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- }
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- }
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- //if not found, it's definately an error
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- throw "Field not found for hash " + key;
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- }
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-
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- public static function hash(s:String):Int
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- {
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- if (s == null) return 0;
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-
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- var key = doHash(s);
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-
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- //start of binary search algorithm
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- var ids = fieldIds;
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- var min = 0;
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- var max = ids.length;
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-
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- while (min < max)
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- {
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- var mid = Std.int(min + (max - min) / 2); //overflow safe
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- var imid = ids[mid];
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- if (key < imid)
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- {
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- max = mid;
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- } else if (key > imid) {
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- min = mid + 1;
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- } else {
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- var field = fields[mid];
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- if (field != s)
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- return -(key + 1); //special case
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- return key;
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- }
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- }
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- //if not found, min holds the value where we should insert the key
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- ids.insert(min, key);
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- fields.insert(min, s);
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- return key;
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- }
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-
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- public static function findHash(hash:Int, hashs:Array<Int>):Int
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- {
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- var min = 0;
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- var max = hashs.length;
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-
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- while (min < max)
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- {
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- var mid = Std.int((max + min) / 2); //overflow safe
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- var imid = hashs[mid];
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- if (hash < imid)
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- {
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- max = mid;
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- } else if (hash > imid) {
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- min = mid + 1;
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- } else {
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- return min;
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- }
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- }
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- //if not found, return a negative value of where it should be inserted
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- return ~min;
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- }
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-
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-}
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