1 /*
2 * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
3 * @LastModified: Oct 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
41 import com.sun.org.apache.bcel.internal.generic.ISTORE;
42 import com.sun.org.apache.bcel.internal.generic.InstructionHandle;
43 import com.sun.org.apache.bcel.internal.generic.InstructionList;
44 import com.sun.org.apache.bcel.internal.generic.LocalVariableGen;
45 import com.sun.org.apache.bcel.internal.generic.NEW;
46 import com.sun.org.apache.bcel.internal.generic.PUSH;
47 import com.sun.org.apache.bcel.internal.generic.PUTFIELD;
48 import com.sun.org.apache.xalan.internal.xsltc.compiler.util.ClassGenerator;
49 import com.sun.org.apache.xalan.internal.xsltc.compiler.util.MethodGenerator;
50 import com.sun.org.apache.xalan.internal.xsltc.compiler.util.Type;
51 import com.sun.org.apache.xalan.internal.xsltc.compiler.util.TypeCheckError;
52 import com.sun.org.apache.xalan.internal.xsltc.compiler.util.Util;
53 import com.sun.org.apache.xml.internal.dtm.Axis;
54 import com.sun.org.apache.xml.internal.dtm.DTM;
55 import java.util.List;
56
57 /**
58 * @author Jacek Ambroziak
59 * @author Santiago Pericas-Geertsen
60 * @author Erwin Bolwidt <ejb@klomp.org>
61 */
62 class StepPattern extends RelativePathPattern {
63
64 private static final int NO_CONTEXT = 0;
65 private static final int SIMPLE_CONTEXT = 1;
66 private static final int GENERAL_CONTEXT = 2;
67
68 protected final int _axis;
69 protected final int _nodeType;
70 protected List<Predicate> _predicates;
71
72 private Step _step = null;
73 private boolean _isEpsilon = false;
74 private int _contextCase;
75
76 private double _priority = Double.MAX_VALUE;
77
78 public StepPattern(int axis, int nodeType, List<Predicate> predicates) {
79 _axis = axis;
80 _nodeType = nodeType;
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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
40 import com.sun.org.apache.bcel.internal.generic.ISTORE;
41 import com.sun.org.apache.bcel.internal.generic.InstructionHandle;
42 import com.sun.org.apache.bcel.internal.generic.InstructionList;
43 import com.sun.org.apache.bcel.internal.generic.LocalVariableGen;
44 import com.sun.org.apache.bcel.internal.generic.NEW;
45 import com.sun.org.apache.bcel.internal.generic.PUSH;
46 import com.sun.org.apache.bcel.internal.generic.PUTFIELD;
47 import com.sun.org.apache.xalan.internal.xsltc.compiler.util.ClassGenerator;
48 import com.sun.org.apache.xalan.internal.xsltc.compiler.util.MethodGenerator;
49 import com.sun.org.apache.xalan.internal.xsltc.compiler.util.Type;
50 import com.sun.org.apache.xalan.internal.xsltc.compiler.util.TypeCheckError;
51 import com.sun.org.apache.xalan.internal.xsltc.compiler.util.Util;
52 import com.sun.org.apache.xml.internal.dtm.Axis;
53 import com.sun.org.apache.xml.internal.dtm.DTM;
54 import java.util.List;
55
56 /**
57 * @author Jacek Ambroziak
58 * @author Santiago Pericas-Geertsen
59 * @author Erwin Bolwidt <ejb@klomp.org>
60 * @LastModified: Oct 2017
61 */
62 class StepPattern extends RelativePathPattern {
63
64 private static final int NO_CONTEXT = 0;
65 private static final int SIMPLE_CONTEXT = 1;
66 private static final int GENERAL_CONTEXT = 2;
67
68 protected final int _axis;
69 protected final int _nodeType;
70 protected List<Predicate> _predicates;
71
72 private Step _step = null;
73 private boolean _isEpsilon = false;
74 private int _contextCase;
75
76 private double _priority = Double.MAX_VALUE;
77
78 public StepPattern(int axis, int nodeType, List<Predicate> predicates) {
79 _axis = axis;
80 _nodeType = nodeType;
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