src/macosx/native/jobjc/src/core/java/com/apple/jobjc/Subclassing.java

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   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 java.io.StringWriter;
  28 import java.lang.reflect.Method;
  29 import java.util.HashSet;
  30 import java.util.Set;
  31 
  32 import com.apple.jobjc.Coder.PrimitivePointerCoder;
  33 import com.apple.jobjc.Coder.VoidCoder;
  34 import com.apple.jobjc.Invoke.MsgSend;
  35 
  36 import javax.tools.annotation.GenerateNativeHeader;
  37 
  38 /* No native methods here, but the constants are needed in the supporting JNI code */
  39 @GenerateNativeHeader
  40 final class Subclassing {
  41     static native long allocateClassPair(long superClass, String name);
  42     static native boolean addIVarForJObj(long clazz);
  43     static native boolean patchAlloc(long classPtr);
  44     static native boolean addMethod(long cls, String name, Method jMethod, CIF cif, long cifPtr, String objCEncodedType);
  45     static native void registerClassPair(long clazz);
  46 
  47     static native <T extends ID> T getJObjectFromIVar(long objPtr);
  48     static native void initJObjectToIVar(long objPtr, ID object);
  49 
  50     final Set<Long> registeredUserSubclasses = new HashSet<Long>();
  51     final JObjCRuntime runtime;
  52 
  53     Subclassing(JObjCRuntime runtime){
  54         this.runtime = runtime;
  55     }
  56 
  57     boolean registerUserClass(final Class<? extends ID> clazz, final Class<? extends NSClass> clazzClazz) {
  58         final String nativeClassName = clazz.getSimpleName();
  59         // Is it already registered?


   1 /*
   2  * Copyright (c) 2011, 2013, 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 java.io.StringWriter;
  28 import java.lang.reflect.Method;
  29 import java.util.HashSet;
  30 import java.util.Set;
  31 
  32 import com.apple.jobjc.Coder.PrimitivePointerCoder;
  33 import com.apple.jobjc.Coder.VoidCoder;
  34 import com.apple.jobjc.Invoke.MsgSend;
  35 

  36 


  37 final class Subclassing {
  38     static native long allocateClassPair(long superClass, String name);
  39     static native boolean addIVarForJObj(long clazz);
  40     static native boolean patchAlloc(long classPtr);
  41     static native boolean addMethod(long cls, String name, Method jMethod, CIF cif, long cifPtr, String objCEncodedType);
  42     static native void registerClassPair(long clazz);
  43 
  44     static native <T extends ID> T getJObjectFromIVar(long objPtr);
  45     static native void initJObjectToIVar(long objPtr, ID object);
  46 
  47     final Set<Long> registeredUserSubclasses = new HashSet<Long>();
  48     final JObjCRuntime runtime;
  49 
  50     Subclassing(JObjCRuntime runtime){
  51         this.runtime = runtime;
  52     }
  53 
  54     boolean registerUserClass(final Class<? extends ID> clazz, final Class<? extends NSClass> clazzClazz) {
  55         final String nativeClassName = clazz.getSimpleName();
  56         // Is it already registered?