| /* |
| * 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.bcel.internal.generic.ConstantPoolGen; |
| import com.sun.org.apache.bcel.internal.generic.InstructionList; |
| import com.sun.org.apache.bcel.internal.generic.PUSH; |
| 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 |
| */ |
| final class LiteralExpr extends Expression { |
| private final String _value; |
| private final String _namespace; |
| |
| /** |
| * Creates a new literal expression node. |
| * @param value the literal expression content/value. |
| */ |
| public LiteralExpr(String value) { |
| _value = value; |
| _namespace = null; |
| } |
| |
| /** |
| * Creates a new literal expression node. |
| * @param value the literal expression content/value. |
| * @param namespace the namespace in which the expression exists. |
| */ |
| public LiteralExpr(String value, String namespace) { |
| _value = value; |
| _namespace = namespace.equals(Constants.EMPTYSTRING) ? null : namespace; |
| } |
| |
| public Type typeCheck(SymbolTable stable) throws TypeCheckError { |
| return _type = Type.String; |
| } |
| |
| public String toString() { |
| return "literal-expr(" + _value + ')'; |
| } |
| |
| protected boolean contextDependent() { |
| return false; |
| } |
| |
| protected String getValue() { |
| return _value; |
| } |
| |
| protected String getNamespace() { |
| return _namespace; |
| } |
| |
| public void translate(ClassGenerator classGen, MethodGenerator methodGen) { |
| final ConstantPoolGen cpg = classGen.getConstantPool(); |
| final InstructionList il = methodGen.getInstructionList(); |
| il.append(new PUSH(cpg, _value)); |
| } |
| } |