- /*
- * 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: FormatNumberCall.java,v 1.11 2004/02/16 22:24:28 minchau Exp $
- */
-
- package com.sun.org.apache.xalan.internal.xsltc.compiler;
-
- import java.util.Vector;
-
- import com.sun.org.apache.bcel.internal.generic.ConstantPoolGen;
- import com.sun.org.apache.bcel.internal.generic.INVOKESTATIC;
- import com.sun.org.apache.bcel.internal.generic.INVOKEVIRTUAL;
- 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.RealType;
- import com.sun.org.apache.xalan.internal.xsltc.compiler.util.StringType;
- 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
- * @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));
- }
- }