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[.small]#© Copyright 2018 Contributors. All rights reserved.#

The full list of resolved issues in 1.9.3 is available
https://bugs.eclipse.org/bugs/buglist.cgi?bug_status=RESOLVED&bug_status=VERIFIED&bug_status=CLOSED&f0=OP&f1=OP&f3=CP&f4=CP&j1=OR&list_id=16866879&product=AspectJ&query_format=advanced&target_milestone=1.9.3[here]

.

AspectJ 1.9.3 supports Java12. Java12 introduces the new switch
expression syntax, but you must activate support for that via an
--enable-preview flag when using the compiler and attempting to run the
resultant classes: Here is Switch3.java:

[source, java]
....
// =========8<=========
public class Switch3 {
    public static void main(String[] argv) {
        System.out.println(one(Color.R));
        System.out.println(one(Color.G));
        System.out.println(one(Color.B));
        System.out.println(one(Color.Y));
    }

    public static int one(Color color) {
        int result = switch(color) {
         case R -> foo(0);
         case G -> foo(1);
         case B -> foo(2);
         default -> foo(3);
        };
        return result;
    }

    public static final int foo(int i) {
        return i+1;
    }
}

enum Color {
    R, G, B, Y;
}

aspect X {
    int around(): call(* foo(..)) {
        return proceed()*3;
    }
}
// =========8<=========
....

Compile it with:

[source, text]
....
$ ajc --enable-preview -showWeaveInfo -12 Switch3.java

Join point 'method-call(int Switch3.foo(int))' in Type 'Switch3' (Switch3.java:12) advised by around advice from 'X' (Switch3.java:30)

Join point 'method-call(int Switch3.foo(int))' in Type 'Switch3' (Switch3.java:13) advised by around advice from 'X' (Switch3.java:30)

Join point 'method-call(int Switch3.foo(int))' in Type 'Switch3' (Switch3.java:14) advised by around advice from 'X' (Switch3.java:30)

Join point 'method-call(int Switch3.foo(int))' in Type 'Switch3' (Switch3.java:15) advised by around advice from 'X' (Switch3.java:30)
....

Now run it:

[source, text]
....
$ java --enable-preview Switch3
3
6
9
12
....

Available: 1.9.3.RC1 available 7-Mar-2019

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