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Java > Open Source Codes > polyglot > ext > coffer > ast > CanonicalKeySetNode_c


1 package polyglot.ext.coffer.ast;
2
3 import polyglot.ext.jl.ast.*;
4 import polyglot.ext.coffer.types.*;
5 import polyglot.ast.*;
6 import polyglot.types.*;
7 import polyglot.visit.*;
8 import polyglot.util.*;
9
10 /**
11  * Implementation of a canonical key set AST node. This is just an AST node
12  * veneer around a <code>KeySet</code> type object.
13  */
14 public class CanonicalKeySetNode_c extends Node_c implements CanonicalKeySetNode
15 {
16     protected KeySet keys;
17
18     public CanonicalKeySetNode_c(Position pos, KeySet keys) {
19         super(pos);
20         this.keys = keys;
21     }
22
23     public KeySet keys() {
24         return keys;
25     }
26
27     public CanonicalKeySetNode keys(KeySet keys) {
28         CanonicalKeySetNode_c n = (CanonicalKeySetNode_c) copy();
29         n.keys = keys;
30         return n;
31     }
32
33     public void prettyPrint(CodeWriter w, PrettyPrinter tr) {
34         w.write(keys.toString());
35     }
36
37     public void translate(CodeWriter w, Translator tr) {
38     throw new InternalCompilerError(position(),
39         "Cannot translate " + this + ".");
40     }
41
42     public String JavaDoc toString() {
43         return keys.toString();
44     }
45 }
46
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