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import java.lang.annotation.*;
@Retention(RetentionPolicy.RUNTIME)
@interface Colored { String color();}
@Colored(color="red")
public class WithinBinding1 {
void mRed() {System.out.println("red"); }
void mBlue() {System.out.println("blue");}
void mGreen() {System.out.println("green");}
WithinBinding1() {
System.out.println("yellow");
}
public static void main(String[]argv) {
WithinBinding1 instance = new WithinBinding1();
instance.mRed();
instance.mBlue();
instance.mGreen();
X.verifyRun();
}
}
aspect X {
static int maxruns = 21; // there are 21 join points in a run of WithinBinding1.main()
static int i = 0; // Count of advice executions
before(Colored c): @within(c) {
System.err.println(thisJoinPoint+" color="+c.color());
if (!c.color().equals("red")) throw new RuntimeException("not red? "+c.color());
i++;
}
public static void verifyRun() {
if (X.i != maxruns)
throw new RuntimeException("Expected "+maxruns+" advice runs but did "+X.i);
}
}
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