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1
28
29 package com.caucho.es;
30
31 import com.caucho.util.CharBuffer;
32 import com.caucho.util.IntMap;
33
34 import java.util.ArrayList  ;
35 import java.util.Iterator ;
36
37
40 class ESArray extends ESObject {
41 static ESId LENGTH = ESId.intern("length");
42
43
46 ESArray()
47 {
48 super("Array", null);
49 put(LENGTH, ESNumber.create(0), DONT_ENUM|DONT_DELETE);
50 }
51
52 public void setProperty(int i, ESBase value) throws Throwable
53 {
54 super.setProperty(ESString.create(i), value);
55
56 int length = getProperty(LENGTH).toInt32();
57 if (i >= length)
58 super.setProperty(LENGTH, ESNumber.create(i + 1));
59 }
60
61 public void setProperty(ESString key, ESBase value) throws Throwable
62 {
63 if (key.equals(LENGTH)) {
64 int oldLength;
65 int newLength;
66
67 try {
68 oldLength = getProperty(LENGTH).toInt32();
69 newLength = value.toInt32();
70 } catch (ESException e) {
71 return;
72 }
73
74 for (int i = newLength; i < oldLength; i++) {
75 try {
76 delete(ESString.create(i));
77 } catch (Exception e) {
78 }
79 }
80
81 if (newLength < 0)
82 newLength = 0;
83
84 super.setProperty(LENGTH, ESNumber.create(newLength));
85 return;
86 }
87
88 super.setProperty(key, value);
89
90 try {
91 int keyValue = Integer.parseInt(key.toString());
92 int length = getProperty(LENGTH).toInt32();
93
94 if (keyValue >= length)
95 super.setProperty(LENGTH, ESNumber.create(keyValue + 1));
96 } catch (Exception e) {
97 }
98 }
99
100 static ESString arrayToSource(ESObject obj, IntMap map, boolean isLoopPass)
101 throws Throwable
102 {
103 Global resin = Global.getGlobalProto();
104 CharBuffer cb = new CharBuffer();
105
106 int mark = map.get(obj);
107
108 if (mark > 0 && isLoopPass)
109 return null;
110 else if (mark > 0) {
111 cb.append("#" + mark + "=");
112 map.put(obj, -mark);
113 } else if (mark == 0 && isLoopPass) {
114 map.put(obj, resin.addMark());
115 return null;
116 } else if (mark < 0 && ! isLoopPass) {
117 return ESString.create("#" + -mark + "#");
118 }
119
120 if (isLoopPass)
121 map.put(obj, 0);
122
123 int len = obj.getProperty(LENGTH).toInt32();
124
125 boolean noValue = true;
126 cb.append("[");
127 for (int i = 0; i < len; i++) {
128 if (i != 0)
129 cb.append(", ");
130
131 ESBase value = obj.hasProperty(i);
132
133 if (value != null && value != esNull &&
134 value != esUndefined && value != esEmpty) {
135 if (isLoopPass)
136 value.toSource(map, isLoopPass);
137 else
138 cb.append(value.toSource(map, isLoopPass));
139 }
140 else if (i + 1 == len)
141 cb.append(",");
142 }
143 cb.append("]");
144
145 return ESString.create(cb.toString());
146 }
147
148 public Iterator keys() throws ESException
149 {
150 ArrayList values = new ArrayList ();
151
152 try {
153 int len = getProperty(LENGTH).toInt32();
154 for (int i = 0; i < len; i++) {
155 Object prop = getProperty(i);
156 values.add(String.valueOf(i));
158 }
159 } catch (Throwable e) {
160 throw ESWrapperException.create(e);
161 }
162
163 return values.iterator();
164 }
165
166 public ESString toSource(IntMap map, boolean isLoopPass) throws Throwable
167 {
168 return arrayToSource(this, map, isLoopPass);
169 }
170
171 public ESObject dup()
172 {
173 return new ESArray(false);
174 }
175
176 protected ESArray(boolean dummy) {}
177 }
178 |
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