1 /* 2 * Permission is hereby granted, free of charge, to any person obtaining a copy of 3 * this software and associated documentation files (the "Software"), to deal in 4 * the Software without restriction, including without limitation the rights to 5 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies 6 * of the Software, and to permit persons to whom the Software is furnished to do 7 * so, subject to the following conditions: 8 * 9 * The above copyright notice and this permission notice shall be included in all 10 * copies or substantial portions of the Software. 11 * 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 13 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 14 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 15 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 16 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 17 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 18 * SOFTWARE. 19 */ 20 package jdk.nashorn.internal.joni.constants; 21 22 public interface StackType { 23 /** stack **/ 24 final int INVALID_STACK_INDEX = -1; 25 26 /* stack type */ 27 /* used by normal-POP */ 28 final int ALT = 0x0001; 29 final int LOOK_BEHIND_NOT = 0x0002; 30 final int POS_NOT = 0x0003; 31 /* handled by normal-POP */ 32 final int MEM_START = 0x0100; 33 final int MEM_END = 0x8200; 34 final int REPEAT_INC = 0x0300; 35 final int STATE_CHECK_MARK = 0x1000; 36 /* avoided by normal-POP */ 37 final int NULL_CHECK_START = 0x3000; 38 final int NULL_CHECK_END = 0x5000; /* for recursive call */ 39 final int MEM_END_MARK = 0x8400; 40 final int POS = 0x0500; /* used when POP-POS */ 41 final int STOP_BT = 0x0600; /* mark for "(?>...)" */ 42 final int REPEAT = 0x0700; 43 final int CALL_FRAME = 0x0800; 44 final int RETURN = 0x0900; 45 final int VOID = 0x0a00; /* for fill a blank */ 46 47 /* stack type check mask */ 48 final int MASK_POP_USED = 0x00ff; 49 final int MASK_TO_VOID_TARGET = 0x10ff; 50 final int MASK_MEM_END_OR_MARK = 0x8000; /* MEM_END or MEM_END_MARK */ 51 }