| /* |
| * 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. |
| */ |
| /* |
| * $Id$ |
| */ |
| |
| package org.apache.xalan.xsltc.compiler; |
| |
| import java.util.Vector; |
| |
| import org.apache.bcel.generic.ConstantPoolGen; |
| import org.apache.bcel.generic.INVOKESTATIC; |
| import org.apache.bcel.generic.INVOKEVIRTUAL; |
| import org.apache.bcel.generic.InstructionList; |
| import org.apache.bcel.generic.PUSH; |
| import org.apache.xalan.xsltc.compiler.util.ClassGenerator; |
| import org.apache.xalan.xsltc.compiler.util.MethodGenerator; |
| import org.apache.xalan.xsltc.compiler.util.RealType; |
| import org.apache.xalan.xsltc.compiler.util.StringType; |
| import org.apache.xalan.xsltc.compiler.util.Type; |
| import org.apache.xalan.xsltc.compiler.util.TypeCheckError; |
| |
| /** |
| * @author Jacek Ambroziak |
| * @author Santiago Pericas-Geertsen |
| * @author Morten Jorgensen |
| */ |
| final class FormatNumberCall extends FunctionCall { |
| private Expression _value; |
| private Expression _format; |
| private Expression _name; |
| private QName _resolvedQName = null; |
| |
| public FormatNumberCall(QName fname, Vector arguments) { |
| super(fname, arguments); |
| _value = argument(0); |
| _format = argument(1); |
| _name = argumentCount() == 3 ? argument(2) : null; |
| } |
| |
| public Type typeCheck(SymbolTable stable) throws TypeCheckError { |
| |
| // Inform stylesheet to instantiate a DecimalFormat object |
| getStylesheet().numberFormattingUsed(); |
| |
| final Type tvalue = _value.typeCheck(stable); |
| if (tvalue instanceof RealType == false) { |
| _value = new CastExpr(_value, Type.Real); |
| } |
| final Type tformat = _format.typeCheck(stable); |
| if (tformat instanceof StringType == false) { |
| _format = new CastExpr(_format, Type.String); |
| } |
| if (argumentCount() == 3) { |
| final Type tname = _name.typeCheck(stable); |
| |
| if (_name instanceof LiteralExpr) { |
| final LiteralExpr literal = (LiteralExpr) _name; |
| _resolvedQName = |
| getParser().getQNameIgnoreDefaultNs(literal.getValue()); |
| } |
| else if (tname instanceof StringType == false) { |
| _name = new CastExpr(_name, Type.String); |
| } |
| } |
| return _type = Type.String; |
| } |
| |
| public void translate(ClassGenerator classGen, MethodGenerator methodGen) { |
| final ConstantPoolGen cpg = classGen.getConstantPool(); |
| final InstructionList il = methodGen.getInstructionList(); |
| |
| _value.translate(classGen, methodGen); |
| _format.translate(classGen, methodGen); |
| |
| final int fn3arg = cpg.addMethodref(BASIS_LIBRARY_CLASS, |
| "formatNumber", |
| "(DLjava/lang/String;"+ |
| "Ljava/text/DecimalFormat;)"+ |
| "Ljava/lang/String;"); |
| final int get = cpg.addMethodref(TRANSLET_CLASS, |
| "getDecimalFormat", |
| "(Ljava/lang/String;)"+ |
| "Ljava/text/DecimalFormat;"); |
| |
| il.append(classGen.loadTranslet()); |
| if (_name == null) { |
| il.append(new PUSH(cpg, EMPTYSTRING)); |
| } |
| else if (_resolvedQName != null) { |
| il.append(new PUSH(cpg, _resolvedQName.toString())); |
| } |
| else { |
| _name.translate(classGen, methodGen); |
| } |
| il.append(new INVOKEVIRTUAL(get)); |
| il.append(new INVOKESTATIC(fn3arg)); |
| } |
| } |