1 /*
2 * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
3 * @LastModified: Nov 2017
4 */
5 /*
6 * Licensed to the Apache Software Foundation (ASF) under one or more
7 * contributor license agreements. See the NOTICE file distributed with
8 * this work for additional information regarding copyright ownership.
9 * The ASF licenses this file to You under the Apache License, Version 2.0
10 * (the "License"); you may not use this file except in compliance with
11 * the License. You may obtain a copy of the License at
12 *
13 * http://www.apache.org/licenses/LICENSE-2.0
14 *
15 * Unless required by applicable law or agreed to in writing, software
16 * distributed under the License is distributed on an "AS IS" BASIS,
17 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
18 * See the License for the specific language governing permissions and
19 * limitations under the License.
20 */
21
22 package com.sun.org.apache.xalan.internal.xsltc.compiler;
23
24 import com.sun.org.apache.bcel.internal.generic.ConstantPoolGen;
25 import com.sun.org.apache.bcel.internal.generic.INVOKEINTERFACE;
26 import com.sun.org.apache.bcel.internal.generic.INVOKESPECIAL;
27 import com.sun.org.apache.bcel.internal.generic.INVOKEVIRTUAL;
28 import com.sun.org.apache.bcel.internal.generic.InstructionList;
29 import com.sun.org.apache.bcel.internal.generic.NEW;
30 import com.sun.org.apache.xalan.internal.xsltc.compiler.util.ClassGenerator;
31 import com.sun.org.apache.xalan.internal.xsltc.compiler.util.MethodGenerator;
32 import com.sun.org.apache.xalan.internal.xsltc.compiler.util.Type;
33 import com.sun.org.apache.xalan.internal.xsltc.compiler.util.TypeCheckError;
34 import com.sun.org.apache.xml.internal.dtm.Axis;
35 import com.sun.org.apache.xml.internal.dtm.DTM;
36 import java.util.ArrayList;
37 import java.util.List;
38
39 /**
40 * @author Jacek Ambroziak
41 * @author Santiago Pericas-Geertsen
42 */
43 final class UnionPathExpr extends Expression {
44
45 private final Expression _pathExpr;
46 private final Expression _rest;
47 private boolean _reverse = false;
48
49 // linearization for top level UnionPathExprs
50 private Expression[] _components;
51
52 public UnionPathExpr(Expression pathExpr, Expression rest) {
53 _pathExpr = pathExpr;
54 _rest = rest;
55 }
56
57 public void setParser(Parser parser) {
58 super.setParser(parser);
59 // find all expressions in this Union
60 final List<Expression> components = new ArrayList<>();
61 flatten(components);
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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.INVOKESPECIAL;
26 import com.sun.org.apache.bcel.internal.generic.INVOKEVIRTUAL;
27 import com.sun.org.apache.bcel.internal.generic.InstructionList;
28 import com.sun.org.apache.bcel.internal.generic.NEW;
29 import com.sun.org.apache.xalan.internal.xsltc.compiler.util.ClassGenerator;
30 import com.sun.org.apache.xalan.internal.xsltc.compiler.util.MethodGenerator;
31 import com.sun.org.apache.xalan.internal.xsltc.compiler.util.Type;
32 import com.sun.org.apache.xalan.internal.xsltc.compiler.util.TypeCheckError;
33 import com.sun.org.apache.xml.internal.dtm.Axis;
34 import com.sun.org.apache.xml.internal.dtm.DTM;
35 import java.util.ArrayList;
36 import java.util.List;
37
38 /**
39 * @author Jacek Ambroziak
40 * @author Santiago Pericas-Geertsen
41 * @LastModified: Nov 2017
42 */
43 final class UnionPathExpr extends Expression {
44
45 private final Expression _pathExpr;
46 private final Expression _rest;
47 private boolean _reverse = false;
48
49 // linearization for top level UnionPathExprs
50 private Expression[] _components;
51
52 public UnionPathExpr(Expression pathExpr, Expression rest) {
53 _pathExpr = pathExpr;
54 _rest = rest;
55 }
56
57 public void setParser(Parser parser) {
58 super.setParser(parser);
59 // find all expressions in this Union
60 final List<Expression> components = new ArrayList<>();
61 flatten(components);
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