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public aspect RecordPatternsPreview1Aspect {
public static void main(String[] args) {
doSomething(new Point(2, 7));
doSomething(new Rectangle(
new ColoredPoint(new Point(1, 6), Color.RED),
new ColoredPoint(new Point(4, 6), Color.BLUE)
));
}
public static void doSomething(Object object) {
System.out.println("Doing something with " + object);
}
before(Object object): execution(* doSomething(*)) && args(object) {
if (object instanceof Point p) {
int x = p.x();
int y = p.y();
System.out.println(x + y);
}
if (object instanceof Point(int x, int y))
System.out.println(x * y);
if (object instanceof Rectangle(ColoredPoint ul, ColoredPoint lr))
System.out.println("Upper-left color: " + ul.c());
if (object instanceof Rectangle(ColoredPoint(Point p, Color c), ColoredPoint lr))
System.out.println("Upper-left color: " + c);
if (object instanceof Rectangle(ColoredPoint(Point(var x, var y), var c), var lr))
System.out.println("Upper-left x coordinate: " + x);
}
}
record Point(int x,int y){}
enum Color { RED, GREEN, BLUE }
record ColoredPoint(Point p, Color c) {}
record Rectangle(ColoredPoint upperLeft, ColoredPoint lowerRight) {}
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