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aspect AspectForIfPCDExprVisibility {
// See IfPCDExprJoinPoint* for join-point error cases
pointcut stringLArgs(String[] args)
: args (args);
pointcut targetTarget(IfPCDExprVisibility target)
: target(target);
pointcut thisItem(IfPCDExprVisibility thisItem)
: this(thisItem);
pointcut callDo()
: call(void IfPCDExprVisibility());
pointcut callMain(String[] args)
: args(args) && call(static void *..main(String[])) ;
// ok: anonymous pointcut
/**
*@testTarget ifpcd.compile.visibility.tjp
*@testTarget ifpcd.compile.visibility.tjpsp
*/
before ()
: if (thisJoinPoint != null)
&& if (thisJoinPointStaticPart != null)
&& call(void IfPCDExprJoinPointVisibleCE.main(..)) {
System.err.println("before main + " + thisJoinPoint);
}
// ok: anonymous pointcut, name composition, arg state
/**
*/
before (String[] args)
: if (thisJoinPointStaticPart != null)
&& if (null != args)
&& callMain (args){
String m = "before main"
+ " join point: " + thisJoinPoint
+ " args: " + args ;
System.err.println(m);
if (null == thisJoinPointStaticPart)
throw new Error("impossible null thisJoinPointStaticPart");
// actually, it is possible to directly invoke main with null args...
if (null == args) throw new Error("null args");
}
/**
*@testTarget ifpcd.compile.visibility.args.named
*@testTarget ifpcd.compile.visibility.this.named
*@testTarget ifpcd.compile.visibility.target.named
*/
Object around (String[] _args
, IfPCDExprVisibility _target
, IfPCDExprVisibility _thisItem)
: targetTarget(_target)
&& thisItem(_thisItem)
&& call(* IfPCDExprVisibility.exec(..))
&& args(_args)
&& if(null != _args)
&& if(null != _target)
&& if(null != _thisItem)
{
String m = "around main - start "
+ " join point: " + thisJoinPoint
+ " static join point: " + thisJoinPointStaticPart
+ " this: " + _thisItem
+ " target: " + _target
+ " args: " + _args
;
System.err.println(m);
// note: no compile error unless around is actually woven in
proceed(_args, _target, _thisItem);
m = "around main - end "
+ " join point: " + thisJoinPoint
+ " static join point: " + thisJoinPointStaticPart
+ " this: " + _thisItem
+ " target: " + _target
+ " args: " + _args
;
System.err.println(m);
return null;
}
}
/**
* @author wes
*/
public class IfPCDExprVisibility {
void exec(String[] args) {
if (null == args) {
System.err.println("exec running with null args");
} else {
System.err.println("exec running with args: " + args);
System.err.println("exec calling itself with null args: " + args);
// only this call is captured by around - from/to this object
exec(null);
}
}
public static void main(String[] args) {
if (null != args) {
System.err.println("main calling itself with null args");
new IfPCDExprVisibility().main(null); // self-call
System.err.println("main done calling itself with null args");
new IfPCDExprVisibility().exec(args);
} else {
System.err.println("ok - main running with null args");
}
}
}
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