How to get the value in switch case ?

[ericmacau]

Hello,

How can I use Javassist to get the case value in switch ?

For example:

switch(a) {
 case 1:
 case 2:
 do12();
 break;

 case 3:
 do3();
 break;

 case 4:
 do4();
 break;

 default:
 System.out.println("Nothing to do!");
}

As in the above statements, how can I get the values of thoses cases: 1, 2, 3, and 4 ???


Eric

[chiba]

Javassist does not provide direct support for that.
You must use the javassist.bytecode package and
parse a swtich instruction by hand.

[ericmacau]

Would you please to give me a simple example to do that ?

Eric

[chiba]

Unfortunately, it is not simple at all.
Section 5.3 of Tutorial would help you but you must be an expert of Java bytecode.