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<title>AspectJ 1.9.3 Readme</title>
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© Copyright 2018 Contributors.
All rights reserved.
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<p>The full list of resolved issues in 1.9.3 is available
<a href="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</a></h2>.</p>
<p>AspectJ 1.9.3 supports Java12. Java12 introduces the new switch expression syntax, but you must activate support for that via
an <tt>--enable-preview</tt> flag when using the compiler and attempting to run the resultant classes:
Here is <tt>Switch3.java</tt>:
<pre><code>
=========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<=========
</code></pre>
Compile it with:
<pre><code>
$ 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)
</code></pre>
Now run it:
<pre><code>
$ java --enable-preview Switch3
3
6
9
12
</code></pre>
<p>Available: 1.9.3.RC1 available 7-Mar-2019</p>
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