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- import org.aspectj.testing.Tester;
-
- public class AroundChangeThis {
- public static void main(String[] args) {
- C c1 = new C("c1");
- C c2 = new C("c2");
- SubC sc = new SubC("sc");
-
- c1.m(c2);
- Tester.checkAndClearEvents(new String[] { "c1.m(c2)", "c2.m(c1)" });
-
- c1.m(sc);
- Tester.checkAndClearEvents(new String[] { "c1.m(sc)", "sc.m(c1)" });
-
- // this is the 1.3 behaviour
- // sc.m(c1);
- // Tester.checkAndClearEvents(new String[] { "sc.m(c1)", "c1.m(sc)" });
-
- try {
- // the 1.4 behaviour is....
- // in byte code we have a call to SubC.m
- sc.m(c1);
- Tester.checkFailed("Expected ClassCastException");
- } catch (ClassCastException e) {
- }
-
- try {
- sc.m1(c1);
- Tester.checkFailed("Expected ClassCastException");
- } catch (ClassCastException e) {
- }
-
- Tester.printEvents();
- }
- }
-
- class C {
- private String name;
-
- public C(String name) { this.name = name; }
-
- public String toString() { return name; }
-
- public void m(Object other) {
- Tester.event(this + ".m(" + other + ")");
- }
- }
-
- class SubC extends C {
- public SubC(String name) { super(name); }
-
- public void m1(Object other) {
- Tester.event(this + ".m1(" + other + ")");
- }
- }
-
-
- aspect A {
- /* Swaps this with arg for calls of C.m(C) */
- void around(C thisC, C argC): execution(void m*(*)) && this(thisC) && args(argC) {
- proceed(argC, thisC);
- proceed(thisC, argC);
- }
-
-
- void around(C thisC, C argC): call(void m*(*)) && target(thisC) && args(argC) {
- proceed(argC, thisC);
- }
- }
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