01: /*
02: * Copyright (c) 1998-2008 Caucho Technology -- all rights reserved
03: *
04: * This file is part of Resin(R) Open Source
05: *
06: * Each copy or derived work must preserve the copyright notice and this
07: * notice unmodified.
08: *
09: * Resin Open Source is free software; you can redistribute it and/or modify
10: * it under the terms of the GNU General Public License as published by
11: * the Free Software Foundation; either version 2 of the License, or
12: * (at your option) any later version.
13: *
14: * Resin Open Source is distributed in the hope that it will be useful,
15: * but WITHOUT ANY WARRANTY; without even the implied warranty of
16: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
17: * of NON-INFRINGEMENT. See the GNU General Public License for more
18: * details.
19: *
20: * You should have received a copy of the GNU General Public License
21: * along with Resin Open Source; if not, write to the
22: *
23: * Free Software Foundation, Inc.
24: * 59 Temple Place, Suite 330
25: * Boston, MA 02111-1307 USA
26: *
27: * @author Scott Ferguson
28: */
29:
30: package com.caucho.quercus.function;
31:
32: import com.caucho.quercus.env.ArrayValue;
33: import com.caucho.quercus.env.Env;
34: import com.caucho.quercus.env.JavaAdapter;
35: import com.caucho.quercus.env.NullValue;
36: import com.caucho.quercus.env.Value;
37: import com.caucho.quercus.expr.Expr;
38:
39: public class ArrayValueMarshal extends Marshal {
40: public static final Marshal MARSHAL = new ArrayValueMarshal();
41:
42: public boolean isReference() {
43: return true;
44: }
45:
46: public boolean isReadOnly() {
47: return false;
48: }
49:
50: /**
51: * Return true if is a Value.
52: */
53: @Override
54: public boolean isValue() {
55: return true;
56: }
57:
58: public Object marshal(Env env, Expr expr, Class expectedClass) {
59: return expr.eval(env).toArrayValue(env);
60: }
61:
62: public Object marshal(Env env, Value value, Class expectedClass) {
63: return value.toArrayValue(env);
64: }
65:
66: public Value unmarshal(Env env, Object value) {
67: if (value instanceof ArrayValue)
68: return (ArrayValue) value;
69: else if (value instanceof Value)
70: return ((Value) value).toArrayValue(env);
71: else
72: return NullValue.NULL;
73: }
74:
75: @Override
76: protected int getMarshalingCostImpl(Value argValue) {
77: if (argValue.isArray()) {
78: if (argValue instanceof JavaAdapter)
79: return Marshal.EQUIVALENT;
80: else
81: return Marshal.SAME;
82: } else
83: return Marshal.DUBIOUS;
84: }
85:
86: @Override
87: public Class getExpectedClass() {
88: return ArrayValue.class;
89: }
90: }
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