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1
19 package gcc.generator;
20
21 import gcc.generator.JEntity;
22 import gcc.generator.JExpression;
23
24 import java.util.HashMap;
25
26 public class JVariable extends JEntity
27 {
28 protected static HashMap _typeMap = new HashMap(60);
29
30 protected Class _type;
31 protected String _typeDecl;
32 protected JExpression _initExpr;
33 protected boolean _isArray;
34
35 public JVariable( Class type, String name )
36 {
37 super( name );
38 setType(type);
39 }
40
41 public void setType( Class type )
42 {
43 _type = type;
44 calculateTypeDecl();
45 }
46
47 public Class getType()
48 {
49 return _type;
50 }
51
52 public String getTypeDecl()
53 {
54 return _typeDecl;
55 }
56
57 public void setInitExpression( JExpression initExpr )
58 {
59 _initExpr = initExpr;
60 }
61
62 public JExpression getInitExpression( )
63 {
64 return _initExpr;
65 }
66
67 public int hashCode()
68 {
69 return _type.hashCode() + _name.hashCode();
70 }
71
72 public boolean equals( Object other )
73 {
74 boolean rc = false;
75
76 if (other == this)
77 {
78 rc = true;
79 }
80 else if (other instanceof JVariable)
81 {
82 JVariable v = (JVariable)other;
83
84 rc = v._type.equals(_type);
85 }
86
87 return rc;
88 }
89
90 protected void calculateTypeDecl()
91 {
92 if (_type == null)
93 {
94 return;
95 }
96
97 _typeDecl = (String) _typeMap.get(_type);
98
99 if (_typeDecl == null)
100 {
101 synchronized( _typeMap )
102 {
103 _typeDecl = _type.getName();
104
105 if (_type.isArray())
106 {
107 _typeDecl = convertToTypeDecl( _typeDecl );
108 }
109
110 _typeMap.put( _type, _typeDecl );
111 }
112 }
113 }
114
115 protected String convertToTypeDecl( String typeName )
116 {
117 String rc = "";
118 char charAt = 0;
119 int i;
120
121 if (typeName != null && typeName.length() > 0)
122 {
123 for( i=0; i<typeName.length(); i++ )
124 {
125 charAt = typeName.charAt(i);
126
127 if (charAt == '[')
128 {
129 rc = rc + "[]";
130 }
131 else if (charAt == 'Z')
132 {
133 rc = "boolean" + rc;
134 }
135 else if (charAt == 'B')
136 {
137 rc = "byte" + rc;
138 }
139 else if (charAt == 'C')
140 {
141 rc = "char" + rc;
142 }
143 else if (charAt == 'L')
144 {
145 int semiIndex = typeName.indexOf( ";" );
146 rc = typeName.substring( i + 1, semiIndex ) + rc;
147 i = semiIndex;
148 }
149 else if (charAt == 'D')
150 {
151 rc = "double" + rc;
152 }
153 else if (charAt == 'F')
154 {
155 rc = "float" + rc;
156 }
157 else if (charAt == 'I')
158 {
159 rc = "int" + rc;
160 }
161 else if (charAt == 'J')
162 {
163 rc = "long" + rc;
164 }
165 else if (charAt == 'S')
166 {
167 rc = "short" + rc;
168 }
169 else
170 {
171 System.out.println( "Error: Invalid signature. typeName = " + typeName + ", charAt = " + charAt + ", i = " + i );
172 }
173 }
174 }
175
176 return rc;
177 }
178
179 protected void showTypeInfo()
180 {
181 System.out.println( "getName() = " + _type.getName() );
182 System.out.println( "\tisArray() = " + _type.isArray() );
183 System.out.println( "\tisPrimitive() = " + _type.isPrimitive() );
184 System.out.println( "\ttoString() = " + _type.toString() );
185 System.out.println( "\ttypeDecl = " + getTypeDecl() );
186 System.out.println( "" );
187 }
188
189 protected void validateDeclType( String t )
190 {
191 String ct = getTypeDecl();
192 if (!t.equals(ct))
193 {
194 System.out.println( "Class Decl Type: '" + ct + "' does not match expected type: '" + t + "'" );
195 }
196 }
197
198 public static void main( String args[] )
199 throws Exception
200 {
201 (new JVariable( java.lang.String.class, "v" )).showTypeInfo();
202 (new JVariable( java.lang.String[].class, "v" )).showTypeInfo();
203 (new JVariable( java.lang.String[][].class, "v" )).showTypeInfo();
204
205 (new JVariable( int.class, "v" )).showTypeInfo();
206 (new JVariable( int[].class, "v" )).showTypeInfo();
207 (new JVariable( int[][].class, "v" )).showTypeInfo();
208
209 (new JVariable( java.lang.String.class, "v" )).validateDeclType( "java.lang.String");
210 (new JVariable( java.lang.String[].class, "v" )).validateDeclType( "java.lang.String[]");
211 (new JVariable( java.lang.String[][].class, "v" )).validateDeclType( "java.lang.String[][]");
212
213 (new JVariable( int.class, "v" )).validateDeclType( "int");
214 (new JVariable( int[].class, "v" )).validateDeclType( "int[]");
215 (new JVariable( int[][].class, "v" )).validateDeclType( "int[][]");
216 }
217 }
218 |
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