-
- /*
- * Copyright 2001-2004 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: LiteralExpr.java,v 1.8 2004/02/16 22:24:29 minchau Exp $
- */
-
- 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));
- }
- }