package com.sun.codemodel.tests;
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import java.util.ArrayList;
import org.junit.Test;
import com.sun.codemodel.JClass;
import com.sun.codemodel.JCodeModel;
import com.sun.codemodel.JDefinedClass;
import com.sun.codemodel.JExpr;
import com.sun.codemodel.JFieldRef;
import com.sun.codemodel.JForEach;
import com.sun.codemodel.JMethod;
import com.sun.codemodel.JMod;
import com.sun.codemodel.JVar;
import com.sun.codemodel.writer.SingleStreamCodeWriter;
/**
*
* Simple program to test the generation of the enhanced for loop in jdk 1.5
*
* @author Bhakti Mehta Bhakti.Mehta@sun.com
*
*/
public class ForEachTest {
@Test
public void main() throws Exception {
JCodeModel cm = new JCodeModel();
JDefinedClass cls = cm._class("Test");
JMethod m = cls.method(JMod.PUBLIC, cm.VOID, "foo");
m.body().decl(cm.INT, "getCount");
// This is not exactly right because we need to
// support generics
JClass arrayListclass = cm.ref(ArrayList.class);
JVar $list = m.body().decl(arrayListclass, "alist",
JExpr._new(arrayListclass));
JClass $integerclass = cm.ref(Integer.class);
JForEach foreach = m.body().forEach($integerclass, "count", $list);
JVar $count1 = foreach.var();
foreach.body().assign(JExpr.ref("getCount"), JExpr.lit(10));
// printing out the variable
JFieldRef out1 = cm.ref(System.class).staticRef("out");
// JInvocation invocation =
foreach.body().invoke(out1, "println").arg($count1);
cm.build(new SingleStreamCodeWriter(System.out));
}
}