blob: d4529e80aeb7915f8bafa06b3acb30948e456e5c (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
|
/*
* ClosedEnvironment.java
*
* comments here.
*
* @author Michiaki Tatsubori
* @version %VERSION% %DATE%
* @see java.lang.Object
*
* COPYRIGHT 1998 by Michiaki Tatsubori, ALL RIGHTS RESERVED.
*/
package io.devnulllabs.openjava.mop;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.util.Hashtable;
import io.devnulllabs.openjava.tools.DebugOut;
/**
* The class <code>ClosedEnvironment</code>
* <p>
* For example
* <pre>
* </pre>
* <p>
*
* @author Michiaki Tatsubori
* @version 1.0
* @since $Id: ClosedEnvironment.java,v 1.2 2003/02/19 02:55:01 tatsubori Exp $
* @see java.lang.Object
*/
public class ClosedEnvironment extends Environment
{
protected Hashtable table = new Hashtable();
protected Hashtable symbol_table = new Hashtable();
/**
*
*
* @param
* @return
* @exception
* @see java.lang.Object
*/
public ClosedEnvironment( Environment env ) {
parent = env;
}
public String toString() {
StringWriter str_writer = new StringWriter();
PrintWriter out = new PrintWriter( str_writer );
out.println( "ClosedEnvironment" );
out.println( "class object table : " + table );
out.println( "binding table : " + symbol_table );
out.println( "parent env : " + parent );
out.flush();
return str_writer.toString();
}
public void record( String name, OJClass clazz ) {
DebugOut.println( "ClosedEnvironment#record() : "
+ name + " " + clazz.getName() );
Object result = table.put( name, clazz );
if (result != null) {
System.err.println( name + " is already binded on "
+ result.toString() );
}
}
public OJClass lookupClass( String name ) {
OJClass result = (OJClass) table.get( name );
if (result != null) return result;
return parent.lookupClass( name );
}
/**
* binds a name to the class type.
*
* @param name the fully-qualified name of the class
* @param clazz the class object associated with that name
*/
public void bindVariable( String name, OJClass clazz ) {
symbol_table.put( name, clazz );
}
public OJClass lookupBind( String name ) {
OJClass type = (OJClass) symbol_table.get( name );
if (type != null) return type;
if (parent == null) return null;
return parent.lookupBind( name );
}
/*
public String toQualifiedName(String name) {
if (name.indexOf('.') == -1) {
java.util.Enumeration ite = table.keys();
while (ite.hasMoreElements()) {
String qname = (String) ite.nextElement();
if (qname.endsWith("." + name)) return qname;
}
}
return parent.toQualifiedName(name);
}
*/
public String toQualifiedName(String name) {
java.util.Enumeration ite = table.keys();
while (ite.hasMoreElements()) {
String qname = (String) ite.nextElement();
if (qname.equals(name)) return qname;
}
return parent.toQualifiedName(name);
}
}
|
