final String descriptor;
- Type(String descriptor) { this.descriptor = descriptor; }
+ protected Type(String descriptor) { this.descriptor = descriptor; }
public static Type fromDescriptor(String descriptor) {
if(descriptor.equals("V")) return VOID;
if(descriptor.equals("B")) return BYTE;
if(descriptor.equals("C")) return CHAR;
if(descriptor.equals("S")) return SHORT;
+ if(descriptor.endsWith("[")) return new Type.Array(fromDescriptor(descriptor.substring(0, descriptor.indexOf('['))),
+ descriptor.length() - descriptor.indexOf('['));
if(Type.Object.validDescriptorString(descriptor)) return new Type.Object(descriptor);
return null;
}
@param dim Number if dimensions
@return A one dimensional array of the base type
*/
- public static Type arrayType(Type base, int dim) {
- StringBuffer sb = new StringBuffer(base.descriptor.length() + dim);
- for(int i=0;i<dim;i++) sb.append("[");
- sb.append(base.descriptor);
- return new Type(sb.toString());
- }
-
- /** Class representing Objec types (any non-primitive type) */
+ public static Type arrayType(Type base, int dim) { return new Type.Array(base, dim); }
+
+ public Type.Object asObject() { throw new RuntimeException("attempted to use "+this+" as a Type.Object, which it is not"); }
+ public Type.Array asArray() { throw new RuntimeException("attempted to use "+this+" as a Type.Array, which it is not"); }
+ public boolean isObject() { return false; }
+ public boolean isArray() { return false; }
+
+ /** Class representing Object types (any non-primitive type) */
public static class Object extends Type {
/** Create an Type.Object instance for the specified string. <i>s</i> can be a string in the form
"java.lang.String", "java/lang/String", or "Ljava/lang/String;".
@param s The type */
- public Object(String s) { super(_initHelper(s)); }
-
+ protected Object(String s) { super(_initHelper(s)); }
+ public Type.Object asObject() { return this; }
+ public boolean isObject() { return true; }
+
private static String _initHelper(String s) {
if(!s.startsWith("L") || !s.endsWith(";")) s = "L" + s.replace('.','/') + ";";
if(!validDescriptorString(s)) throw new IllegalArgumentException("invalid descriptor string");
return s.startsWith("L") && s.endsWith(";");
}
}
+
+ public static class Array extends Object {
+ protected Array(Type t, int dim) { super(arrayify(t,dim)); }
+ public Type.Array asArray() { return this; }
+ public boolean isArray() { return true; }
+ private static String arrayify(Type t, int dim) {
+ StringBuffer sb = new StringBuffer(t.descriptor.length() + dim);
+ for(int i=0;i<dim;i++) sb.append("[");
+ sb.append(t.descriptor);
+ return sb.toString();
+ }
+ }
+
}