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import java.lang.annotation.*;
@Retention(RetentionPolicy.RUNTIME)
@interface Colored { String color(); }
public class AdviceExecBinding {
public static void main(String[]argv) {
m1();
m2();
m3();
X.verifyRun();
}
static void m1() {}
static void m2() {}
static void m3() {}
}
aspect B {
@Colored(color="orange") before(): execution(* m1()) {}
@Colored(color="yellow") before(): execution(* m2()) {}
@Colored(color="brown") before(): execution(* m3()) {}
}
aspect X {
// Expected color order
static String exp[] = new String[]{"orange","yellow","brown"};
static int i = 0; // Count of advice executions
before(Colored c): adviceexecution() && within(B) && @annotation(c) {
System.err.println(thisJoinPoint+" color="+c.color());
if (!c.color().equals(exp[i])) throw new RuntimeException("not "+exp[i]+"? "+c.color());
i++;
}
public static void verifyRun() {
if (X.i != exp.length)
throw new RuntimeException("Expected "+exp.length+" advice runs but did "+X.i);
}
}
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