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+/* JniStubPrinter.java - Generate JNI stub files
+ Copyright (C) 2006 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.lang.reflect.Modifier;
+import java.util.Iterator;
+
+import org.objectweb.asm.Type;
+import org.objectweb.asm.tree.MethodNode;
+
+public class JniStubPrinter
+ extends Printer
+{
+
+ protected JniStubPrinter(Main classpath)
+ {
+ super(classpath);
+ }
+
+ public void printClass(File outputDir, ClassWrapper klass) throws IOException
+ {
+ if (! klass.hasNativeMethod())
+ return;
+ String xname = JniHelper.mangle(klass.name);
+ File outFile = new File(outputDir, xname + ".c");
+
+ JniPrintStream out = new JniPrintStream(classpath,
+ new FileOutputStream(outFile),
+ klass);
+ out.println("/* This file is intended to give you a head start on implementing native");
+ out.println(" methods using CNI.");
+ out.println(" Be aware: running 'gcjh -stubs' once more for this class may");
+ out.println(" overwrite any edits you have made to this file. */");
+ out.println();
+ out.print("#include <");
+ out.print(xname);
+ out.println(".h>");
+
+ Iterator i = klass.methods.iterator();
+ while (i.hasNext())
+ {
+ MethodNode method = (MethodNode) i.next();
+ if (! Modifier.isNative(method.access))
+ continue;
+ out.println();
+ out.print(Type.getReturnType(method.desc));
+ out.println();
+ out.print(method, xname);
+ out.println();
+ out.println("{");
+ out.print(" (*env)->FatalError (env, \"");
+ out.print(method, xname);
+ out.println(" not implemented\");");
+ out.println("}");
+ }
+ out.close();
+ }
+
+}