| <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"> |
| <html> <head> |
| <title>AspectJ 1.9.3 Readme</title> |
| <style type="text/css"> |
| <!-- |
| P { margin-left: 20px; } |
| PRE { margin-left: 20px; } |
| LI { margin-left: 20px; } |
| H4 { margin-left: 20px; } |
| H3 { margin-left: 10px; } |
| --> |
| </style> |
| </head> |
| |
| <body> |
| <div align="right"><small> |
| © Copyright 2019 Contributors. |
| All rights reserved. |
| </small></div> |
| <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> |
| <p> |
| 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> |
| <p> |
| Now run it: |
| <pre><code> |
| $ java --enable-preview Switch3 |
| 3 |
| 6 |
| 9 |
| 12 |
| </code></pre> |
| |
| |
| <p> |
| <p>Available:</p> |
| <ul> |
| <li>1.9.3 on 4-Apr-2019</p> |
| <li>1.9.3.RC1 on 7-Mar-2019</p> |
| </ul> |
| |
| <br><br> |
| |
| |
| <!-- ============================== --> |
| </body> |
| </html> |
