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Diffstat (limited to 'src/share/classes/com/sun/org/apache/xpath/internal/compiler/OpCodes.java')
| -rw-r--r-- | src/share/classes/com/sun/org/apache/xpath/internal/compiler/OpCodes.java | 634 |
1 files changed, 634 insertions, 0 deletions
diff --git a/src/share/classes/com/sun/org/apache/xpath/internal/compiler/OpCodes.java b/src/share/classes/com/sun/org/apache/xpath/internal/compiler/OpCodes.java new file mode 100644 index 0000000..1384c2a --- /dev/null +++ b/src/share/classes/com/sun/org/apache/xpath/internal/compiler/OpCodes.java @@ -0,0 +1,634 @@ +/* + * reserved comment block + * DO NOT REMOVE OR ALTER! + */ +/* + * Copyright 1999-2004 The Apache Software Foundation. + * + * Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +/* + * $Id: OpCodes.java,v 1.1.2.1 2005/08/01 01:30:33 jeffsuttor Exp $ + */ +package com.sun.org.apache.xpath.internal.compiler; + +/** + * Operations codes for XPath. + * + * Code for the descriptions of the operations codes: + * [UPPER CASE] indicates a literal value, + * [lower case] is a description of a value, + * ([length] always indicates the length of the operation, + * including the operations code and the length integer.) + * {UPPER CASE} indicates the given production, + * {description} is the description of a new production, + * (For instance, {boolean expression} means some expression + * that should be resolved to a boolean.) + * * means that it occurs zero or more times, + * + means that it occurs one or more times, + * ? means that it is optional. + * + * returns: indicates what the production should return. + */ +public class OpCodes +{ + + /** + * [ENDOP] + * Some operators may like to have a terminator. + * @xsl.usage advanced + */ + public static final int ENDOP = -1; + + /** + * [EMPTY] + * Empty slot to indicate NULL. + */ + public static final int EMPTY = -2; + + /** + * [ELEMWILDCARD] + * Means ELEMWILDCARD ("*"), used instead + * of string index in some places. + * @xsl.usage advanced + */ + public static final int ELEMWILDCARD = -3; + + /** + * [OP_XPATH] + * [length] + * {expression} + * + * returns: + * XNodeSet + * XNumber + * XString + * XBoolean + * XRTree + * XObject + * @xsl.usage advanced + */ + public static final int OP_XPATH = 1; + + /** + * [OP_OR] + * [length] + * {boolean expression} + * {boolean expression} + * + * returns: + * XBoolean + * @xsl.usage advanced + */ + public static final int OP_OR = 2; + + /** + * [OP_AND] + * [length] + * {boolean expression} + * {boolean expression} + * + * returns: + * XBoolean + * @xsl.usage advanced + */ + public static final int OP_AND = 3; + + /** + * [OP_NOTEQUALS] + * [length] + * {expression} + * {expression} + * + * returns: + * XBoolean + * @xsl.usage advanced + */ + public static final int OP_NOTEQUALS = 4; + + /** + * [OP_EQUALS] + * [length] + * {expression} + * {expression} + * + * returns: + * XBoolean + * @xsl.usage advanced + */ + public static final int OP_EQUALS = 5; + + /** + * [OP_LTE] (less-than-or-equals) + * [length] + * {number expression} + * {number expression} + * + * returns: + * XBoolean + * @xsl.usage advanced + */ + public static final int OP_LTE = 6; + + /** + * [OP_LT] (less-than) + * [length] + * {number expression} + * {number expression} + * + * returns: + * XBoolean + * @xsl.usage advanced + */ + public static final int OP_LT = 7; + + /** + * [OP_GTE] (greater-than-or-equals) + * [length] + * {number expression} + * {number expression} + * + * returns: + * XBoolean + * @xsl.usage advanced + */ + public static final int OP_GTE = 8; + + /** + * [OP_GT] (greater-than) + * [length] + * {number expression} + * {number expression} + * + * returns: + * XBoolean + * @xsl.usage advanced + */ + public static final int OP_GT = 9; + + /** + * [OP_PLUS] + * [length] + * {number expression} + * {number expression} + * + * returns: + * XNumber + * @xsl.usage advanced + */ + public static final int OP_PLUS = 10; + + /** + * [OP_MINUS] + * [length] + * {number expression} + * {number expression} + * + * returns: + * XNumber + * @xsl.usage advanced + */ + public static final int OP_MINUS = 11; + + /** + * [OP_MULT] + * [length] + * {number expression} + * {number expression} + * + * returns: + * XNumber + * @xsl.usage advanced + */ + public static final int OP_MULT = 12; + + /** + * [OP_DIV] + * [length] + * {number expression} + * {number expression} + * + * returns: + * XNumber + * @xsl.usage advanced + */ + public static final int OP_DIV = 13; + + /** + * [OP_MOD] + * [length] + * {number expression} + * {number expression} + * + * returns: + * XNumber + * @xsl.usage advanced + */ + public static final int OP_MOD = 14; + + /** + * [OP_QUO] + * [length] + * {number expression} + * {number expression} + * + * returns: + * XNumber + * @xsl.usage advanced + */ + public static final int OP_QUO = 15; + + /** + * [OP_NEG] + * [length] + * {number expression} + * + * returns: + * XNumber + * @xsl.usage advanced + */ + public static final int OP_NEG = 16; + + /** + * [OP_STRING] (cast operation) + * [length] + * {expression} + * + * returns: + * XString + * @xsl.usage advanced + */ + public static final int OP_STRING = 17; + + /** + * [OP_BOOL] (cast operation) + * [length] + * {expression} + * + * returns: + * XBoolean + * @xsl.usage advanced + */ + public static final int OP_BOOL = 18; + + /** + * [OP_NUMBER] (cast operation) + * [length] + * {expression} + * + * returns: + * XBoolean + * @xsl.usage advanced + */ + public static final int OP_NUMBER = 19; + + /** + * [OP_UNION] + * [length] + * {PathExpr}+ + * + * returns: + * XNodeSet + * @xsl.usage advanced + */ + public static final int OP_UNION = 20; + + /** + * [OP_LITERAL] + * [3] + * [index to token] + * + * returns: + * XString + * @xsl.usage advanced + */ + public static final int OP_LITERAL = 21; + + /** The low opcode for nodesets, needed by getFirstPredicateOpPos and + * getNextStepPos. */ + static final int FIRST_NODESET_OP = 22; + + /** + * [OP_VARIABLE] + * [4] + * [index to namespace token, or EMPTY] + * [index to function name token] + * + * returns: + * XString + * @xsl.usage advanced + */ + public static final int OP_VARIABLE = 22; + + /** + * [OP_GROUP] + * [length] + * {expression} + * + * returns: + * XNodeSet + * XNumber + * XString + * XBoolean + * XRTree + * XObject + * @xsl.usage advanced + */ + public static final int OP_GROUP = 23; + + /** + * [OP_EXTFUNCTION] (Extension function.) + * [length] + * [index to namespace token] + * [index to function name token] + * {OP_ARGUMENT} + * + * returns: + * XNodeSet + * XNumber + * XString + * XBoolean + * XRTree + * XObject + * @xsl.usage advanced + */ + public static final int OP_EXTFUNCTION = 24; + + /** + * [OP_FUNCTION] + * [length] + * [FUNC_name] + * {OP_ARGUMENT} + * [ENDOP] + * + * returns: + * XNodeSet + * XNumber + * XString + * XBoolean + * XRTree + * XObject + * @xsl.usage advanced + */ + public static final int OP_FUNCTION = 25; + + /** The last opcode for stuff that can be a nodeset. */ + static final int LAST_NODESET_OP = 25; + + /** + * [OP_ARGUMENT] (Function argument.) + * [length] + * {expression} + * + * returns: + * XNodeSet + * XNumber + * XString + * XBoolean + * XRTree + * XObject + * @xsl.usage advanced + */ + public static final int OP_ARGUMENT = 26; + + /** + * [OP_NUMBERLIT] (Number literal.) + * [3] + * [index to token] + * + * returns: + * XString + * @xsl.usage advanced + */ + public static final int OP_NUMBERLIT = 27; + + /** + * [OP_LOCATIONPATH] + * [length] + * {FROM_stepType} + * | {function} + * {predicate} + * [ENDOP] + * + * (Note that element and attribute namespaces and + * names can be wildcarded '*'.) + * + * returns: + * XNodeSet + * @xsl.usage advanced + */ + public static final int OP_LOCATIONPATH = 28; + + // public static final int LOCATIONPATHEX_MASK = 0x0000FFFF; + // public static final int LOCATIONPATHEX_ISSIMPLE = 0x00010000; + // public static final int OP_LOCATIONPATH_EX = (28 | 0x00010000); + + /** + * [OP_PREDICATE] + * [length] + * {expression} + * [ENDOP] (For safety) + * + * returns: + * XBoolean or XNumber + * @xsl.usage advanced + */ + public static final int OP_PREDICATE = 29; + + /** + * [OP_MATCHPATTERN] + * [length] + * {PathExpr}+ + * + * returns: + * XNodeSet + * @xsl.usage advanced + */ + public static final int OP_MATCHPATTERN = 30; + + /** + * [OP_LOCATIONPATHPATTERN] + * [length] + * {FROM_stepType} + * | {function}{predicate} + * [ENDOP] + * returns: + * XNodeSet + * @xsl.usage advanced + */ + public static final int OP_LOCATIONPATHPATTERN = 31; + + /** + * [NODETYPE_COMMENT] + * No size or arguments. + * Note: must not overlap function OP number! + * + * returns: + * XBoolean + * @xsl.usage advanced + */ + public static final int NODETYPE_COMMENT = 1030; + + /** + * [NODETYPE_TEXT] + * No size or arguments. + * Note: must not overlap function OP number! + * + * returns: + * XBoolean + * @xsl.usage advanced + */ + public static final int NODETYPE_TEXT = 1031; + + /** + * [NODETYPE_PI] + * [index to token] + * Note: must not overlap function OP number! + * + * returns: + * XBoolean + * @xsl.usage advanced + */ + public static final int NODETYPE_PI = 1032; + + /** + * [NODETYPE_NODE] + * No size or arguments. + * Note: must not overlap function OP number! + * + * returns: + * XBoolean + * @xsl.usage advanced + */ + public static final int NODETYPE_NODE = 1033; + + /** + * [NODENAME] + * [index to ns token or EMPTY] + * [index to name token] + * + * returns: + * XBoolean + * @xsl.usage advanced + */ + public static final int NODENAME = 34; + + /** + * [NODETYPE_ROOT] + * No size or arguments. + * + * returns: + * XBoolean + * @xsl.usage advanced + */ + public static final int NODETYPE_ROOT = 35; + + /** + * [NODETYPE_ANY] + * No size or arguments. + * + * returns: + * XBoolean + * @xsl.usage advanced + */ + public static final int NODETYPE_ANYELEMENT = 36; + + /** + * [NODETYPE_ANY] + * No size or arguments. + * + * returns: + * XBoolean + * @xsl.usage advanced + */ + public static final int NODETYPE_FUNCTEST = 1034; + + /** + * [FROM_stepType] + * [length, including predicates] + * [length of just the step, without the predicates] + * {node test} + * {predicates}? + * + * returns: + * XBoolean + * @xsl.usage advanced + */ + public static final int AXES_START_TYPES = 37; + + /** ancestor axes opcode. */ + public static final int FROM_ANCESTORS = 37; + + /** ancestor-or-self axes opcode. */ + public static final int FROM_ANCESTORS_OR_SELF = 38; + + /** attribute axes opcode. */ + public static final int FROM_ATTRIBUTES = 39; + + /** children axes opcode. */ + public static final int FROM_CHILDREN = 40; + + /** descendants axes opcode. */ + public static final int FROM_DESCENDANTS = 41; + + /** descendants-of-self axes opcode. */ + public static final int FROM_DESCENDANTS_OR_SELF = 42; + + /** following axes opcode. */ + public static final int FROM_FOLLOWING = 43; + + /** following-siblings axes opcode. */ + public static final int FROM_FOLLOWING_SIBLINGS = 44; + + /** parent axes opcode. */ + public static final int FROM_PARENT = 45; + + /** preceding axes opcode. */ + public static final int FROM_PRECEDING = 46; + + /** preceding-sibling axes opcode. */ + public static final int FROM_PRECEDING_SIBLINGS = 47; + + /** self axes opcode. */ + public static final int FROM_SELF = 48; + + /** namespace axes opcode. */ + public static final int FROM_NAMESPACE = 49; + + /** '/' axes opcode. */ + public static final int FROM_ROOT = 50; + + /** + * For match patterns. + * @xsl.usage advanced + */ + public static final int MATCH_ATTRIBUTE = 51; + + /** + * For match patterns. + * @xsl.usage advanced + */ + public static final int MATCH_ANY_ANCESTOR = 52; + + /** + * For match patterns. + * @xsl.usage advanced + */ + public static final int MATCH_IMMEDIATE_ANCESTOR = 53; + + /** The end of the axes types. */ + public static final int AXES_END_TYPES = 53; + + /** The next free ID. Please keep this up to date. */ + private static final int NEXT_FREE_ID = 99; +} |