1 /*
   2  * Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 package com.apple.jobjc;
  26 
  27 import javax.tools.annotation.GenerateNativeHeader;
  28 
  29 /* No native methods here, but the constants are needed in the supporting JNI code */
  30 @GenerateNativeHeader
  31 public class SEL {
  32     static native long getSelectorPtr(String selectorName);
  33     static native String getSelectorName(long ptr);
  34 
  35     final long selPtr;
  36 
  37     SEL(long ptr) {
  38         this.selPtr = ptr;
  39     }
  40 
  41     public SEL(final String name) {
  42         this(getSelectorPtr(name));
  43     }
  44 
  45     @Override public String toString(){
  46         return ((int)selPtr) + " / " + selPtr + " : " + getSelectorName(selPtr);
  47     }
  48 
  49     /**
  50      * Converts something like "performSelectorOnMainThread_withObject_wait"
  51      * to "performSelectorOnMainThread:withObject:wait:"
  52      */
  53     public static String selectorName(String jMethodName, boolean hasArgs){
  54         String b = jMethodName.replaceAll("_", ":");
  55         return hasArgs ? b + ":" : b;
  56     }
  57 
  58     public static String jMethodName(String selectorName){
  59         return selectorName.replaceAll(":", "_").replaceAll("_$", "");
  60     }
  61 
  62     public static boolean validName(String selectorName){
  63         return selectorName.matches("^[a-zA-Z_][a-zA-Z0-9_:]*$");
  64     }
  65 }