content: /*
   *  This file is part of AndroidIDE.
   *
   *  AndroidIDE is free software: you can redistribute it and/or modify
   *  it under the terms of the GNU General Public License as published by
   *  the Free Software Foundation, either version 3 of the License, or
   *  (at your option) any later version.
   *
   *  AndroidIDE is distributed in the hope that it will be useful,
   *  but WITHOUT ANY WARRANTY; without even the implied warranty of
   *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   *  GNU General Public License for more details.
   *
   *  You should have received a copy of the GNU General Public License
   *   along with AndroidIDE.  If not, see <https://www.gnu.org/licenses/>.
   */
  
  /*
   * reserved comment block
   * DO NOT REMOVE OR ALTER!
   */
  /*
   * 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: LangCall.java,v 1.2.4.1 2005/09/01 15:54:25 pvedula Exp $
   */
  
  package jaxp.sun.org.apache.xalan.internal.xsltc.compiler;
  
  import java.util.Vector;
  
  import jaxp.sun.org.apache.bcel.internal.generic.ConstantPoolGen;
  import jaxp.sun.org.apache.bcel.internal.generic.ILOAD;
  import jaxp.sun.org.apache.bcel.internal.generic.INVOKESTATIC;
  import jaxp.sun.org.apache.bcel.internal.generic.InstructionList;
  import jaxp.sun.org.apache.xalan.internal.xsltc.compiler.util.ClassGenerator;
  import jaxp.sun.org.apache.xalan.internal.xsltc.compiler.util.FilterGenerator;
  import jaxp.sun.org.apache.xalan.internal.xsltc.compiler.util.MethodGenerator;
  import jaxp.sun.org.apache.xalan.internal.xsltc.compiler.util.StringType;
  import jaxp.sun.org.apache.xalan.internal.xsltc.compiler.util.Type;
  import jaxp.sun.org.apache.xalan.internal.xsltc.compiler.util.TypeCheckError;
  
  /**
   * @author Morten Jorgensen
   */
  final class LangCall extends FunctionCall {
      private Expression _lang;
      private Type _langType;
  
      /**
       * Get the parameters passed to function:
       *   lang(string)
       */
      public LangCall(QName fname, Vector arguments) {
          super(fname, arguments);
          _lang = argument(0);
      }
  
      /**
       *
       */
      public Type typeCheck(SymbolTable stable) throws TypeCheckError {
          _langType = _lang.typeCheck(stable);
          if (!(_langType instanceof StringType)) {
              _lang = new CastExpr(_lang, Type.String);
          }
          return Type.Boolean;
      }
  
      /**
       *
       */
      public Type getType() {
          return(Type.Boolean);
      }
  
      /**
       * This method is called when the constructor is compiled in
       * Stylesheet.compileConstructor() and not as the syntax tree is traversed.
       */
      public void translate(ClassGenerator classGen,
                            MethodGenerator methodGen) {
          final ConstantPoolGen cpg = classGen.getConstantPool();
          final InstructionList il = methodGen.getInstructionList();
  
          final int tst = cpg.addMethodref(BASIS_LIBRARY_CLASS,
                                           "testLanguage",
                                           "("+STRING_SIG+DOM_INTF_SIG+"I)Z");
          _lang.translate(classGen,methodGen);
          il.append(methodGen.loadDOM());
          if (classGen instanceof FilterGenerator)
              il.append(new ILOAD(1));
          else
              il.append(methodGen.loadContextNode());
          il.append(new INVOKESTATIC(tst));
      }
  }
  