Method ret

chapter21/src/test/java/com/seaofnodes/simple/Eval2.java:223–233

( ReturnNode ret )

        // Target function and environment
        return CODE.link(tfp(call.fptr()));
    }

    private static CFGNode ret( ReturnNode ret ) {
        // Fetch return expression value and continuation from current frame
        Object rez = val(ret.expr());
        Closure cont = clj(ret.rpc());
        // Lower Frame reference count; might delete frame
        F.dec();                // Lower ref count
        // Install replacement Frame; set return result over the CallEnd
        F = cont._frame;
        F.put0(cont._cc,rez);   // Set return value into CallEnd
        return cont._cc;        // Return CallEnd as the new control
    }