TypeInfo.java example

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/*
 * Copyright 2006 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package com.google.gwt.dev.util;

/**
 * Java type helpers used.
 */
public class TypeInfo {

  public static final int NOT_FOUND = 0; // used with all of the enumerated
  public static final int TYPE_ARRAY = 0x200000;
  public static final int TYPE_COLLECTION = 0x180000;
  public static final int TYPE_COLLECTION_LIST = 0x100000;
  public static final int TYPE_COLLECTION_SET = 0x080000;
  public static final int TYPE_PRIM = 0x07fc00;
  public static final int TYPE_PRIM_BOOLEAN = 0x008000;
  public static final int TYPE_PRIM_BYTE = 0x000800;
  public static final int TYPE_PRIM_CHAR = 0x000400;
  public static final int TYPE_PRIM_DOUBLE = 0x020000;
  public static final int TYPE_PRIM_FLOAT = 0x010000;
  public static final int TYPE_PRIM_INT = 0x002000;
  public static final int TYPE_PRIM_LONG = 0x004000;
  public static final int TYPE_PRIM_SHORT = 0x001000;
  public static final int TYPE_PRIM_VOID = 0x040000;
  public static final int TYPE_USER = 0x400000;
  public static final int TYPE_WRAP = 0x0003ff;
  public static final int TYPE_WRAP_BOOLEAN = 0x000040;
  public static final int TYPE_WRAP_BYTE = 0x000004;
  public static final int TYPE_WRAP_CHAR = 0x000002;
  public static final int TYPE_WRAP_DATE = 0x000200;
  public static final int TYPE_WRAP_DOUBLE = 0x000100;
  public static final int TYPE_WRAP_FLOAT = 0x000080;
  public static final int TYPE_WRAP_INT = 0x000010;
  public static final int TYPE_WRAP_LONG = 0x000020;
  public static final int TYPE_WRAP_SHORT = 0x000008;
  // types below
  public static final int TYPE_WRAP_STRING = 0x000001;

  public static String getSourceRepresentation(Class<?> type) {
    // Primitives
    //
    if (type.equals(Integer.TYPE)) {
      return "int";
    } else if (type.equals(Long.TYPE)) {
      return "long";
    } else if (type.equals(Short.TYPE)) {
      return "short";
    } else if (type.equals(Byte.TYPE)) {
      return "byte";
    } else if (type.equals(Character.TYPE)) {
      return "char";
    } else if (type.equals(Boolean.TYPE)) {
      return "boolean";
    } else if (type.equals(Float.TYPE)) {
      return "float";
    } else if (type.equals(Double.TYPE)) {
      return "double";
    }

    // Arrays
    //
    if (type.isArray()) {
      Class<?> componentType = type.getComponentType();
      return getSourceRepresentation(componentType) + "[]";
    }

    // Everything else
    //
    return type.getName().replace('$', '.');
  }
}