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import java.util.*;
/**
* - returning(List<String>) matches List<String> but not List<Number>
* - returning(List<String>) matches List with unchecked warning
* - returning(List<String>) matches List<?> with unchecked warning
* - returning(List<String>) matches List<T> with unchecked warning
* - returning(List<String>) matches List<T extends String> (String is final)
*/
public aspect AfterReturningParameterized {
public static void main(String[] args) {
List<String> ls = new ArrayList<String>();
// ls.add("one");
// ls.add("two");
// ls.add("three");
Generic<String> g = new Generic<String>();
g.foo(ls);
g.bar(ls);
g.tada(ls);
g.afar(new ArrayList<Number>());
g.something(ls);
MustBeString<String> mbs = new MustBeString<String>();
mbs.listit(ls);
}
after() returning(List<String> ls) : call(* *(..)) {
System.out.println("returning(List<String> matched at " + thisJoinPointStaticPart);
ls.add("four");
String s = ls.get(0);
}
}
class Generic<T> {
List<T> foo(List<T> lt) {
return lt;
}
List<String> bar(List<String> ls) {
return ls;
}
List tada(List l) {
return l;
}
List<Number> afar(List<Number> ln) {
return ln;
}
List<?> something(List<?> ls) {
return ls;
}
}
class MustBeString<T extends String> {
List<T> listit(List<T> lt) {
return lt;
}
}
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