01: /*
02: * @(#)mapget.java 1.2 04/12/06
03: *
04: * Copyright (c) 1997-2004 Sun Microsystems, Inc. All Rights Reserved.
05: *
06: * See the file "LICENSE.txt" for information on usage and redistribution
07: * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
08: */
09: package org.pnuts.lib;
10:
11: import pnuts.lang.*;
12: import java.util.*;
13:
14: public class mapget extends PnutsFunction {
15:
16: public mapget() {
17: super ("mapget");
18: }
19:
20: public boolean defined(int nargs) {
21: return nargs == 2;
22: }
23:
24: protected Object exec(Object[] args, Context context) {
25: if (args.length != 2) {
26: undefined(args, context);
27: }
28: Map map = (Map) args[0];
29: return map.get(args[1]);
30: }
31:
32: public String toString() {
33: return "function mapget(map, key)";
34: }
35: }
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