RE: [aspectj-users] Re: Re: Array Constructor Pointcut ?

["Erik Hilsdale" <eh-aop@xxxxxxxxxxxxx>]

This was intended to be a language restriction.  The compiler bug is that
we're not signaling an error for the syntax "call(String[].new(..))".  Array
types don't have constructors, initializers, or static initializers in Java.


I've to submitted a bug report so we catch that illegal syntax (and the
other illegal syntax David Pearce found *smile*).  

As Matt correctly says, there is an anewarray/newarray bytecode representing
array construction, so capturing array construction as a join point is
technically feasible.  If someone has a good use case for "array constructor
join points" (which would be call-site-like things in the same way as field
references are) then he or she should submit it as a feature request to
https://bugs.eclipse.org/bugs/enter_bug.cgi?product=AspectJ.

-erik

-----Original Message-----
From: aspectj-users-admin@xxxxxxxxxxx
[mailto:aspectj-users-admin@xxxxxxxxxxx] On Behalf Of Matthew Webster
Sent: Thursday, June 17, 2004 8:10am
To: aspectj-users@xxxxxxxxxxx
Subject: [aspectj-users] Re: Re: Array Constructor Pointcut ?





The fact that the following code compiles suggests that this is not a
language restriction:

public aspect Aspect {

      pointcut initArray () :
            call(String[].new(..));

      after () : initArray() {
            System.err.println("? " + thisJoinPoint
.getSignature().getName());
      }

      pointcut all () :
            within(Test);

      after () : all() {
            System.err.println("? " + thisJoinPoint);
      }
}

public class Test {
      public static void main(String[] args) {
            String s = new String("Hello");
            String[] sa = new String[1];
            int[] ia = new int[1];
      }
}

However the output indicated the array construction join point is not
recognized by AspectJ although there is a bytecode associated with it
(newarray/anewarray):

? staticinitialization(Test.<clinit>)
? call(java.lang.String(String))
? execution(void Test.main(String[]))


This is probably a complier bug.

Matthew Webster
AOSD Project
Java Technology Centre, MP146
IBM Hursley Park, Winchester,  SO21 2JN, England
Telephone: +44 196 2816139 (external) 246139 (internal)
Email: Matthew Webster/UK/IBM @ IBMGB, matthew_webster@xxxxxxxxxx
http://w3.hursley.ibm.com/~websterm/