Mercurial > hg > openjdk > jdk9 > jaxp
view src/java.xml/share/classes/com/sun/org/apache/xalan/internal/xsltc/compiler/Pattern.java @ 1113:2fdbfbde3bc0
8162572: Update License Header for all JAXP sources
Reviewed-by: lancea
author | joehw |
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date | Mon, 17 Apr 2017 16:24:10 -0700 |
parents | 2bfaf29cc90b |
children |
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/* * reserved comment block * DO NOT REMOVE OR ALTER! */ /* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You 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. */ package com.sun.org.apache.xalan.internal.xsltc.compiler; import com.sun.org.apache.xalan.internal.xsltc.compiler.util.ClassGenerator; import com.sun.org.apache.xalan.internal.xsltc.compiler.util.MethodGenerator; import com.sun.org.apache.xalan.internal.xsltc.compiler.util.Type; import com.sun.org.apache.xalan.internal.xsltc.compiler.util.TypeCheckError; /** * @author Jacek Ambroziak * @author Santiago Pericas-Geertsen */ public abstract class Pattern extends Expression { /** * Returns the type of a pattern, which is always a <code>NodeType</code>. * A <code>NodeType</code> has a number of subtypes defined by * <code>NodeType._type</code> corresponding to each type of node. */ public abstract Type typeCheck(SymbolTable stable) throws TypeCheckError; /** * Translate this node into JVM bytecodes. Patterns are translated as * boolean expressions with true/false lists. Before calling * <code>translate</code> on a pattern, make sure that the node being * matched is on top of the stack. After calling <code>translate</code>, * make sure to backpatch both true and false lists. True lists are the * default, in the sense that they always <em>"fall through"</em>. If this * is not the intended semantics (e.g., see * {@link com.sun.org.apache.xalan.internal.xsltc.compiler.AlternativePattern#translate}) * then a GOTO must be appended to the instruction list after calling * <code>translate</code>. */ public abstract void translate(ClassGenerator classGen, MethodGenerator methodGen); /** * Returns the priority of this pattern (section 5.5 in the XSLT spec). */ public abstract double getPriority(); }