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
66 /**
67 * Returns true if this expressions contains a call to last()
68 */
69 public boolean hasLastCall() {
70 return (_left.hasLastCall() || _right.hasLastCall());
71 }
72
73 public void setParser(Parser parser) {
74 super.setParser(parser);
75 _left.setParser(parser);
76 _right.setParser(parser);
77 }
78
79 public Type typeCheck(SymbolTable stable) throws TypeCheckError {
80 final Type tleft = _left.typeCheck(stable);
81 final Type tright = _right.typeCheck(stable);
82 final MethodType ptype = lookupPrimop(stable, Ops[_op],
83 new MethodType(Type.Void,
84 tleft, tright));
85 if (ptype != null) {
86 final Type arg1 = (Type) ptype.argsType().get(0);
87 if (!arg1.identicalTo(tleft)) {
88 _left = new CastExpr(_left, arg1);
89 }
90 final Type arg2 = (Type) ptype.argsType().get(1);
91 if (!arg2.identicalTo(tright)) {
92 _right = new CastExpr(_right, arg1);
93 }
94 return _type = ptype.resultType();
95 }
96 throw new TypeCheckError(this);
97 }
98
99 public void translate(ClassGenerator classGen, MethodGenerator methodGen) {
100 final InstructionList il = methodGen.getInstructionList();
101
102 _left.translate(classGen, methodGen);
103 _right.translate(classGen, methodGen);
104
105 switch (_op) {
106 case PLUS:
107 il.append(_type.ADD());
108 break;
109 case MINUS:
110 il.append(_type.SUB());
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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
66 /**
67 * Returns true if this expressions contains a call to last()
68 */
69 public boolean hasLastCall() {
70 return (_left.hasLastCall() || _right.hasLastCall());
71 }
72
73 public void setParser(Parser parser) {
74 super.setParser(parser);
75 _left.setParser(parser);
76 _right.setParser(parser);
77 }
78
79 public Type typeCheck(SymbolTable stable) throws TypeCheckError {
80 final Type tleft = _left.typeCheck(stable);
81 final Type tright = _right.typeCheck(stable);
82 final MethodType ptype = lookupPrimop(stable, Ops[_op],
83 new MethodType(Type.Void,
84 tleft, tright));
85 if (ptype != null) {
86 final Type arg1 = ptype.argsType().get(0);
87 if (!arg1.identicalTo(tleft)) {
88 _left = new CastExpr(_left, arg1);
89 }
90 final Type arg2 = ptype.argsType().get(1);
91 if (!arg2.identicalTo(tright)) {
92 _right = new CastExpr(_right, arg1);
93 }
94 return _type = ptype.resultType();
95 }
96 throw new TypeCheckError(this);
97 }
98
99 public void translate(ClassGenerator classGen, MethodGenerator methodGen) {
100 final InstructionList il = methodGen.getInstructionList();
101
102 _left.translate(classGen, methodGen);
103 _right.translate(classGen, methodGen);
104
105 switch (_op) {
106 case PLUS:
107 il.append(_type.ADD());
108 break;
109 case MINUS:
110 il.append(_type.SUB());
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