AuxTypeKit


1   /* ----------------------------------------------------------------------------
2    * EAOP 1.0, 2002-12-19
3    * (c) 2002 Remi Douence, Mario Sudholt; OBASCO group; EMN/INRIA; France
4    * THIS SOFTWARE IS PROVIDED AS IS AND WITHOUT ANY WARRANTY
5     -------------------------------------------------------------------------- */
6   
7   package fr.emn.info.eaop.recoderaux;
8   
9   import recoder.abstraction.*;
10  
11  /**
12   *  This class provides auxiliary methods for the manipulation of 
13   *  Recoder types.
14   */
15  public class AuxTypeKit {
16      public static boolean isPrimitive(Type t) {
17      return t instanceof PrimitiveType;
18      }
19  
20      public static boolean isPrimitive(String   tName) {
21      return tName == "boolean" || tName == "byte"    || tName == "char"
22          || tName == "double"  || tName == "float"   || tName == "int"
23          || tName == "long" || tName == "short";
24      }
25  
26      /**
27       *  Converts primitive type names into their object counterparts, 
28       *  identity on other strings.
29       */
30      public static String   primitiveT2objectT(String   tname) {
31      if (tname == "boolean" || tname == "byte"    || tname == "char"    ||
32          tname == "double"  || tname == "float"   || tname == "long"    || 
33          tname == "short") {
34          return tname.substring(0, 1).toUpperCase() + tname.substring(1);
35      } else if (tname == "int") return "Integer";
36      else return tname;
37      }
38  
39      /**
40       *  Return the name representing the type <code>t</code>.
41       */
42      public static String   type2representingType(Type t) {
43      String   reprT = "";
44  
45      if (isPrimitive(t))
46          reprT = primitiveT2objectT(t.getName()) + ".TYPE";
47      else reprT = "Class.forName(\"" + t.getFullName() + "\")";
48  
49      return reprT;
50      }
51  
52      /**
53       *  Return an arbitrary element of the given type <code>td</code>.
54       */
55      public static String   elementOfType(String   tName) {
56      if (tName.equals(primitiveT2objectT(tName))) return "null";
57      else return elementOfPrimitiveType(tName);
58      }
59  
60      /**
61       *  Return an arbitrary element of the given 
62       *  primitive type <code>tn</code>.
63       */
64      public static String   elementOfPrimitiveType(String   tName) {
65      String   str = "";
66  
67      if (tName == "boolean") str = "true";
68      else if (tName == "char") str = " ";
69      str = "0";
70  
71      return str;
72      }
73  }
74
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