diff options
| -rw-r--r-- | docs/progGuideDB/semantics.xml | 41 |
1 files changed, 38 insertions, 3 deletions
diff --git a/docs/progGuideDB/semantics.xml b/docs/progGuideDB/semantics.xml index 3c1c8fe32..cef27728b 100644 --- a/docs/progGuideDB/semantics.xml +++ b/docs/progGuideDB/semantics.xml @@ -652,9 +652,12 @@ </programlisting> <para> - picks out join points where an <literal>int</literal> is being - passed as an argument. Second, though, it makes the value of that - argument available to the enclosing advice or pointcut. + picks out join points where an <literal>int</literal> (or + a <literal>byte</literal>, <literal>short</literal>, or + <literal>char</literal>; anything assignable to an + <literal>int</literal>) is being passed as an argument. + Second, though, it makes the value of that argument + available to the enclosing advice or pointcut. </para> <para> @@ -697,6 +700,38 @@ advice will be of type <literal>java.lang.Integer</literal>. </para> + <para> + The "boxing" of the primitive value is based on the + <emphasis>original</emphasis> primitive type. So in the + following program + </para> + +<programlisting> + public class InstanceOf { + + public static void main(String[] args) { + doInt(5); + } + + static void doInt(int i) { } + } + + aspect IntToLong { + pointcut el(long l) : + execution(* doInt(..)) <![CDATA[&&]]> args(l); + + before(Object o) : el(o) { + System.out.println(o.getClass()); + } + } +</programlisting> + + <para> + The pointcut will match and expose the integer argument, + but it will expose it as an <literal>Integer</literal>, + not a <literal>Long</literal>. + </para> + </sect2> <sect2> |