xref: /aosp_15_r20/external/apache-commons-bcel/src/examples/Mini/ASTInteger.java (revision 0c56280ab0842982c46a149f7b9eaa497e31e292)
1*0c56280aSSorin Basca /*
2*0c56280aSSorin Basca  * Licensed to the Apache Software Foundation (ASF) under one or more
3*0c56280aSSorin Basca  * contributor license agreements.  See the NOTICE file distributed with
4*0c56280aSSorin Basca  * this work for additional information regarding copyright ownership.
5*0c56280aSSorin Basca  * The ASF licenses this file to You under the Apache License, Version 2.0
6*0c56280aSSorin Basca  * (the "License"); you may not use this file except in compliance with
7*0c56280aSSorin Basca  * the License.  You may obtain a copy of the License at
8*0c56280aSSorin Basca  *
9*0c56280aSSorin Basca  *      http://www.apache.org/licenses/LICENSE-2.0
10*0c56280aSSorin Basca  *
11*0c56280aSSorin Basca  *  Unless required by applicable law or agreed to in writing, software
12*0c56280aSSorin Basca  *  distributed under the License is distributed on an "AS IS" BASIS,
13*0c56280aSSorin Basca  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14*0c56280aSSorin Basca  *  See the License for the specific language governing permissions and
15*0c56280aSSorin Basca  *  limitations under the License.
16*0c56280aSSorin Basca  *
17*0c56280aSSorin Basca  */
18*0c56280aSSorin Basca /* Generated By:JJTree: Do not edit this line. ASTInteger.java */
19*0c56280aSSorin Basca /* JJT: 0.3pre1 */
20*0c56280aSSorin Basca 
21*0c56280aSSorin Basca package Mini;
22*0c56280aSSorin Basca import org.apache.bcel.generic.ConstantPoolGen;
23*0c56280aSSorin Basca import org.apache.bcel.generic.InstructionList;
24*0c56280aSSorin Basca import org.apache.bcel.generic.MethodGen;
25*0c56280aSSorin Basca import org.apache.bcel.generic.PUSH;
26*0c56280aSSorin Basca 
27*0c56280aSSorin Basca /**
28*0c56280aSSorin Basca  *
29*0c56280aSSorin Basca  * @version $Id$
30*0c56280aSSorin Basca  */
31*0c56280aSSorin Basca public class ASTInteger extends ASTExpr {
32*0c56280aSSorin Basca   private int value;
33*0c56280aSSorin Basca 
34*0c56280aSSorin Basca   // Generated methods
ASTInteger(int id)35*0c56280aSSorin Basca   ASTInteger(int id) {
36*0c56280aSSorin Basca     super(id);
37*0c56280aSSorin Basca   }
38*0c56280aSSorin Basca 
ASTInteger(MiniParser p, int id)39*0c56280aSSorin Basca   ASTInteger(MiniParser p, int id) {
40*0c56280aSSorin Basca     super(p, id);
41*0c56280aSSorin Basca   }
42*0c56280aSSorin Basca 
jjtCreate(MiniParser p, int id)43*0c56280aSSorin Basca   public static Node jjtCreate(MiniParser p, int id) {
44*0c56280aSSorin Basca     return new ASTInteger(p, id);
45*0c56280aSSorin Basca   }
46*0c56280aSSorin Basca 
47*0c56280aSSorin Basca   // closeNode, dump inherited from Expr
48*0c56280aSSorin Basca 
49*0c56280aSSorin Basca   /**
50*0c56280aSSorin Basca    * @return identifier and line/column number of appearance
51*0c56280aSSorin Basca    */
52*0c56280aSSorin Basca   @Override
toString()53*0c56280aSSorin Basca   public String toString() {
54*0c56280aSSorin Basca     return super.toString() + " = " + value;
55*0c56280aSSorin Basca   }
56*0c56280aSSorin Basca 
57*0c56280aSSorin Basca   /**
58*0c56280aSSorin Basca    * Overrides ASTExpr.traverse()
59*0c56280aSSorin Basca    */
60*0c56280aSSorin Basca   @Override
traverse(Environment env)61*0c56280aSSorin Basca   public ASTExpr traverse(Environment env) {
62*0c56280aSSorin Basca     this.env = env;
63*0c56280aSSorin Basca     return this; // Nothing to reduce/traverse here
64*0c56280aSSorin Basca   }
65*0c56280aSSorin Basca 
66*0c56280aSSorin Basca   /**
67*0c56280aSSorin Basca    * Second pass
68*0c56280aSSorin Basca    * Overrides AstExpr.eval()
69*0c56280aSSorin Basca    * @return type of expression
70*0c56280aSSorin Basca    */
71*0c56280aSSorin Basca   @Override
eval(int expected)72*0c56280aSSorin Basca   public int eval(int expected) {
73*0c56280aSSorin Basca     is_simple = true; // (Very) simple expression, always true
74*0c56280aSSorin Basca 
75*0c56280aSSorin Basca     return type = T_INT;
76*0c56280aSSorin Basca   }
77*0c56280aSSorin Basca 
78*0c56280aSSorin Basca   /**
79*0c56280aSSorin Basca    * Fourth pass, produce Java code.
80*0c56280aSSorin Basca    */
81*0c56280aSSorin Basca   @Override
code(StringBuffer buf)82*0c56280aSSorin Basca   public void code(StringBuffer buf) {
83*0c56280aSSorin Basca     ASTFunDecl.push(buf, "" + value);
84*0c56280aSSorin Basca   }
85*0c56280aSSorin Basca 
86*0c56280aSSorin Basca   /**
87*0c56280aSSorin Basca    * Fifth pass, produce Java byte code.
88*0c56280aSSorin Basca    */
89*0c56280aSSorin Basca   @Override
byte_code(InstructionList il, MethodGen method, ConstantPoolGen cp)90*0c56280aSSorin Basca   public void byte_code(InstructionList il, MethodGen method, ConstantPoolGen cp) {
91*0c56280aSSorin Basca     il.append(new PUSH(cp, value)); ASTFunDecl.push();
92*0c56280aSSorin Basca   }
93*0c56280aSSorin Basca 
setValue(int value)94*0c56280aSSorin Basca   void setValue(int value) { this.value = value; }
getValue()95*0c56280aSSorin Basca   int  getValue()          { return value; }
96*0c56280aSSorin Basca }
97