1 /*
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10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12  * version 2 for more details (a copy is included in the LICENSE file that
13  * accompanied this code).
14  *
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23 
24 package vm.mlvm.meth.share.transform.v2;
25 
26 import java.lang.invoke.MethodHandle;
27 import java.lang.invoke.MethodHandles;
28 
29 import vm.mlvm.meth.share.Argument;
30 
31 public class MHIdentityTF extends MHNullaryTF {
32 
33     private final Argument _arg;
34 
MHIdentityTF(Argument arg)35     public MHIdentityTF(Argument arg) {
36         _arg = arg;
37     }
38 
39     @Override
check()40     protected void check() throws IllegalArgumentException {
41     }
42 
43     @Override
computeRetVal()44     protected Argument computeRetVal() {
45         return _arg;
46     }
47 
48     @Override
computeInboundArgs()49     protected Argument[] computeInboundArgs() {
50         return new Argument[] { _arg };
51     }
52 
53     @Override
computeInboundMH()54     protected MethodHandle computeInboundMH() {
55         return MethodHandles.identity(_arg.getType());
56     }
57 
58     @Override
getName()59     protected String getName() {
60         return "identity";
61     }
62 
63     @Override
getDescription()64     protected String getDescription() {
65         return "arg=" + _arg;
66     }
67 
68 }
69