[Soot-list] Access parameter in created method

[Eric Bodden]

Hi Jörg.

The tutorial contains this code:

    // insert "tmpRef.println("Hello world!")"
    {
        SootMethod toCall = Scene.v().getMethod
          ("<java.io.PrintStream: void println(java.lang.String)>");
        units.add(Jimple.v().newInvokeStmt
            (Jimple.v().newVirtualInvokeExpr
               (tmpRef, toCall.makeRef(), StringConstant.v("Hello world!"))));
    }

Simply replace StringConstant.v("Hello world!") by the local variable
that references your parameter. That local you need to initialize at
the beginning of the method using a parameterref as the tutorial also
shows:

    units.add(Jimple.v().newIdentityStmt(arg,
          Jimple.v().newParameterRef(ArrayType.v
            (RefType.v("java.lang.String"), 1), 0)));

Eric

On 14 December 2012 14:31, Jörg Schad <joerg.schad at gmail.com> wrote:
> Hi,
> sorry upfront for a beginners question...
>
> I created a class similar to the example "Creating a class from scratch with
> Soot" (http://www.sable.mcgill.ca/soot/tutorial/createclass/index.html).
> Now I am wondering how I can access (or print for example) the parameters
> inside such method.
>
> Could anyone provide a simple example of how to print a String parameter for
> example or point me to further documentation?
>
> Thanks a lot
> JS84
>
> _______________________________________________
> Soot-list mailing list
> Soot-list at sable.mcgill.ca
> http://mailman.cs.mcgill.ca/mailman/listinfo/soot-list
>



-- 
Eric Bodden, Ph.D., http://sse.ec-spride.de/ http://bodden.de/
Head of Secure Software Engineering Group at EC SPRIDE
Tel: +49 6151 16-75422    Fax: +49 6151 16-72051
Room 3.2.14, Mornewegstr. 30, 64293 Darmstadt