ASMSupport教程4.7 生成关系运算符

import java.util.Random;

import org.objectweb.asm.Opcodes;

import jw.asmsupport.block.method.common.StaticMethodBody; import jw.asmsupport.clazz.AClass; import jw.asmsupport.clazz.AClassFactory; import jw.asmsupport.creator.ClassCreator; import jw.asmsupport.definition.value.Value; import jw.asmsupport.definition.variable.LocalVariable;

import example.AbstractExample;

public class RelationalOperatorGenerate extends AbstractExample {

1public static void main(String[] args) {
2	ClassCreator creator = new ClassCreator(Opcodes.V1_5, Opcodes.ACC_PUBLIC , "generated.operators.RelationalOperatorGenerateExample", null, null);
3
4	/*
5	 * 
6	 */
7	creator.createStaticMethod("main", new AClass[]{AClassFactory.getProductClass(String[].class)}, new String[]{"args"}, null, null,
8			Opcodes.ACC_PUBLIC + Opcodes.ACC_STATIC, new StaticMethodBody(){
9
10		@Override
11		public void generateBody(LocalVariable... argus) {
12			//Random rand = new Random();
13			LocalVariable rand = createVariable("rand", AClassFactory.getProductClass(Random.class), false, 
14			    invokeConstructor(AClassFactory.getProductClass(Random.class)));
15			
16			//int i = rand.nextInt(100);
17			LocalVariable i = createVariable("i", AClass.INT_ACLASS, false, 
18			    invoke(rand, "nextInt", Value.value(100)));
19			
20		    //int j = rand.nextInt(100);
21			LocalVariable j = createVariable("j", AClass.INT_ACLASS, false, 
22			    invoke(rand, "nextInt", Value.value(100)));
23			
24		    //System.out.println("i = " + i);
25			invoke(systemOut, "println", append(Value.value("i = "), i));
26			
27		    //System.out.println("j = " + j);
28			invoke(systemOut, "println", append(Value.value("j = "), j));
29			
30		    //System.out.println("i > j is " + (i > j));
31			invoke(systemOut, "println", append(Value.value("i > j is "), greaterThan(i, j)));
32			
33		    //System.out.println("i < j is " + (i < j));
34			invoke(systemOut, "println", append(Value.value("i < j is "), lessThan(i, j)));
35			
36		    //System.out.println("i >= j is " + (i >= j));
37			invoke(systemOut, "println", append(Value.value("i >= j is "), greaterEqual(i, j)));
38			
39		    //System.out.println("i <= j is " + (i <= j));
40			invoke(systemOut, "println", append(Value.value("i <= j is "), lessEqual(i, j)));
41			
42		    //System.out.println("i == j is " + (i == j));
43			invoke(systemOut, "println", append(Value.value("i == j is "), equal(i, j)));
44			
45		    //System.out.println("i != j is " + (i != j));
46			invoke(systemOut, "println", append(Value.value("i != j is "), notEqual(i, j)));
47			
48		    //System.out.println("(i < 10) && (j < 10) is " + ((i < 10) && (j < 10)));
49			invoke(systemOut, "println", append(Value.value("(i < 10) && (j < 10) is "), 
50			    conditionalAnd(lessThan(i, Value.value(10)), lessThan(j, Value.value(10)))));
51			
52		    //System.out.println("(i < 10) || (j < 10) is " + ((i < 10) || (j < 10)));
53			invoke(systemOut, "println", append(Value.value("(i < 10) || (j < 10) is "), 
54			    conditionalOr(lessThan(i, Value.value(10)), lessThan(j, Value.value(10)))));
55			
56			runReturn();
57		}
58    });
59	generate(creator);
60}

} </pre><!-- Code inserted with Steve Dunn's Windows Live Writer Code Formatter Plugin. http://dunnhq.com --></div>