1 /*
   2  * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.

   3  */
   4 /*
   5  * Licensed to the Apache Software Foundation (ASF) under one or more
   6  * contributor license agreements.  See the NOTICE file distributed with
   7  * this work for additional information regarding copyright ownership.
   8  * The ASF licenses this file to You under the Apache License, Version 2.0
   9  * (the "License"); you may not use this file except in compliance with
  10  * the License.  You may obtain a copy of the License at
  11  *
  12  *      http://www.apache.org/licenses/LICENSE-2.0
  13  *
  14  * Unless required by applicable law or agreed to in writing, software
  15  * distributed under the License is distributed on an "AS IS" BASIS,
  16  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  17  * See the License for the specific language governing permissions and
  18  * limitations under the License.
  19  */
  20 
  21 package com.sun.org.apache.xalan.internal.xsltc.compiler;
  22 
  23 import com.sun.org.apache.bcel.internal.generic.ConstantPoolGen;
  24 import com.sun.org.apache.bcel.internal.generic.INVOKEINTERFACE;
  25 import com.sun.org.apache.bcel.internal.generic.InstructionList;
  26 import com.sun.org.apache.xalan.internal.xsltc.compiler.util.ClassGenerator;
  27 import com.sun.org.apache.xalan.internal.xsltc.compiler.util.MethodGenerator;
  28 import com.sun.org.apache.xalan.internal.xsltc.compiler.util.StringType;
  29 import com.sun.org.apache.xalan.internal.xsltc.compiler.util.Type;
  30 import com.sun.org.apache.xalan.internal.xsltc.compiler.util.TypeCheckError;
  31 import java.util.List;
  32 
  33 /**
  34  * @author Jacek Ambroziak
  35  * @author Santiago Pericas-Geertsen
  36  * @author Morten Jorgensen
  37  * @LastModified: Oct 2017
  38  */
  39 final class UnparsedEntityUriCall extends FunctionCall {
  40     private Expression _entity;
  41 
  42     public UnparsedEntityUriCall(QName fname, List<Expression> arguments) {
  43         super(fname, arguments);
  44         _entity = argument();
  45     }
  46 
  47     public Type typeCheck(SymbolTable stable) throws TypeCheckError {
  48         final Type entity = _entity.typeCheck(stable);
  49         if (entity instanceof StringType == false) {
  50             _entity = new CastExpr(_entity, Type.String);
  51         }
  52         return _type = Type.String;
  53     }
  54 
  55     public void translate(ClassGenerator classGen, MethodGenerator methodGen) {
  56         final ConstantPoolGen cpg = classGen.getConstantPool();
  57         final InstructionList il = methodGen.getInstructionList();
  58         // Feck the this pointer on the stack...
  59         il.append(methodGen.loadDOM());
  60         // ...then the entity name...
  61         _entity.translate(classGen, methodGen);
  62         // ...to get the URI from the DOM object.
  63         il.append(new INVOKEINTERFACE(
  64                          cpg.addInterfaceMethodref(DOM_INTF,
  65                                                    GET_UNPARSED_ENTITY_URI,
  66                                                    GET_UNPARSED_ENTITY_URI_SIG),
  67                          2));
  68     }
  69 }
--- EOF ---