| /* JniIncludePrinter.java - Generate a JNI header file |
| Copyright (C) 2006, 2007 Free Software Foundation, Inc. |
| |
| This file is part of GNU Classpath. |
| |
| GNU Classpath is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2, or (at your option) |
| any later version. |
| |
| GNU Classpath is distributed in the hope that it will be useful, but |
| WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU Classpath; see the file COPYING. If not, write to the |
| Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 02110-1301 USA. |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under |
| terms of your choice, provided that you also meet, for each linked |
| independent module, the terms and conditions of the license of that |
| module. An independent module is a module which is not derived from |
| or based on this library. If you modify this library, you may extend |
| this exception to your version of the library, but you are not |
| obligated to do so. If you do not wish to do so, delete this |
| exception statement from your version. */ |
| |
| |
| package gnu.classpath.tools.javah; |
| |
| import java.io.File; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.io.PrintStream; |
| import java.lang.reflect.Modifier; |
| import java.util.Iterator; |
| |
| import org.objectweb.asm.Type; |
| import org.objectweb.asm.tree.FieldNode; |
| import org.objectweb.asm.tree.MethodNode; |
| |
| public class JniIncludePrinter |
| extends Printer |
| { |
| protected JniIncludePrinter(Main classpath, File outFile, boolean isDir, |
| boolean force) |
| { |
| super(classpath, outFile, isDir, force); |
| } |
| |
| private void writeFields(ClassWrapper klass, JniPrintStream out) |
| throws IOException |
| { |
| klass.linkSupers(); |
| boolean wroteAny = false; |
| for (; klass != null; klass = klass.superClass) |
| { |
| Iterator<?> i = klass.fields.iterator(); |
| while (i.hasNext()) |
| { |
| FieldNode field = (FieldNode) i.next(); |
| if (! Modifier.isStatic(field.access) |
| || ! Modifier.isFinal(field.access)) |
| continue; |
| if (! (field.value instanceof Integer) |
| && ! (field.value instanceof Long)) |
| continue; |
| |
| // Note that we don't want to mangle the field name. |
| String name = (JniHelper.mangle(klass.name) + "_" + field.name); |
| out.print("#undef "); |
| out.println(name); |
| out.print("#define "); |
| out.print(name); |
| out.print(" "); |
| out.print(field.value); |
| if (field.value instanceof Integer) |
| out.print("L"); |
| else if (field.value instanceof Long) |
| out.print("LL"); |
| out.println(); |
| wroteAny = true; |
| } |
| } |
| if (wroteAny) |
| out.println(); |
| } |
| |
| protected void writePreambleImpl(PrintStream out) |
| { |
| out.println("/* DO NOT EDIT THIS FILE - it is machine generated */"); |
| out.println(); |
| out.println("#include <jni.h>"); |
| } |
| |
| protected PrintStream getPrintStreamImpl(FileOutputStream fos, |
| ClassWrapper klass) |
| { |
| return new JniPrintStream(classpath, fos, klass); |
| } |
| |
| public void printClass(File file, ClassWrapper klass) throws IOException |
| { |
| // Note that we ignore the filename here. |
| String xname = JniHelper.mangle(klass.name); |
| |
| // mangle the filename a bit |
| String filename = klass.name; |
| |
| filename = filename.replace('/', '_'); |
| filename = filename.replace('$', '_'); |
| filename = filename + ".h"; |
| |
| JniPrintStream out = (JniPrintStream) getPrintStream(filename, klass); |
| |
| if (out == null) |
| return; |
| |
| out.println(); |
| out.print("#ifndef __"); |
| out.print(xname); |
| out.println("__"); |
| out.print("#define __"); |
| out.print(xname); |
| out.println("__"); |
| out.println(); |
| out.println("#ifdef __cplusplus"); |
| out.println("extern \"C\""); |
| out.println("{"); |
| out.println("#endif"); |
| out.println(); |
| |
| Iterator<?> i = klass.methods.iterator(); |
| while (i.hasNext()) |
| { |
| MethodNode method = (MethodNode) i.next(); |
| if (! Modifier.isNative(method.access)) |
| continue; |
| out.print("JNIEXPORT "); |
| out.print(Type.getReturnType(method.desc)); |
| out.print(" JNICALL "); |
| out.print(method, xname); |
| out.println(";"); |
| } |
| |
| out.println(); |
| |
| writeFields(klass, out); |
| |
| out.println("#ifdef __cplusplus"); |
| out.println("}"); |
| out.println("#endif"); |
| out.println(); |
| out.print("#endif /* __"); |
| out.print(xname); |
| out.println("__ */"); |
| out.close(); |
| } |
| } |