RE: [aspectj-users] Compile-time erros and warnings

["Jorrand, Vincent" <vincent.jorrand@xxxxxxxxxxxxxx>]

System.out is a static attribute of the System class and call(* X.y(..))
cannot work in for it. In addition even if it did your pointcut could not
catch something like:
	PrintStream myOut = System.out;
	myOut.println("hello world");

The usual solution is to block the access to the out attribute:
	declare error: get(java.io.PrintStream System.out) &&
within(com.mypackage..*)

Vincent

-----Original Message-----
From: Hugo Magalhães [mailto:Hugo.Magalhaes@xxxxxxxxxxx]
Sent: Wednesday, April 09, 2003 10:21 AM
To: aspectj-users@xxxxxxxxxxx
Subject: [aspectj-users] Compile-time erros and warnings


Good afternoon.

I'm trying to create a compile time Aspect to do a warning when the
System.out.print() and System.out.println() is called from anywhere in my
code but that doesn't seem to work and a warning symbol shows up on the left
side of the poincut (line 3) (I'm using Eclipse 2.1, Aspect 1.1 and AJDT
0.6.1). Can you tell me what I'm doing wrong? 

The code is the following:

----------------------------------------------

- Aspect:

1. public aspect SystemOutListener {
2.				
3.	pointcut systemOut() 
4.		: call( * System.out.*(..)) && within(com.mypackage.*);
5.		
6.	declare error: systemOut()
7.		: "You cannot use System.out.print* directy. Use the Log
class instead";
8.			
8. }

-----------------------------------------------

- Main class:

package com.mypackage;

1. public class Main {
2.	
3.	 public Main () {
4.		
5.		System.out.println("Error");
6.		
7.	 }
8.
9.	 public static void main(String[] args) {
10.		
11.		new Main ();
12.		
13.	 }
14. }

-----------------------------------------------

Thanks in advance,
Hugo Magalhães 
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