1 files changed, 119 insertions, 0 deletions
diff --git a/tools/gnu/classpath/tools/javah/CniStubPrinter.java b/tools/gnu/classpath/tools/javah/CniStubPrinter.java
new file mode 100644
index 000000000..9732e2941
--- /dev/null
+++ b/tools/gnu/classpath/tools/javah/CniStubPrinter.java
@@ -0,0 +1,119 @@
+/* CniStubPrinter.java - Generate a CNI stub file
+ 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 CniStubPrinter
+    extends Printer
+{
+
+  protected CniStubPrinter(Main classpath)
+  {
+    super(classpath);
+  }
+
+  private void printDecl(CniPrintStream out, String className, MethodNode method)
+  {
+    out.print(className);
+    out.print("::");
+    out.print(method.name);
+    out.print("(");
+    Type[] argTypes = Type.getArgumentTypes(method.desc);
+    for (int j = 0; j < argTypes.length; ++j)
+      {
+        if (j > 0)
+          out.print(", ");
+        out.print(argTypes[j]);
+      }
+    out.print(")");
+  }
+
+  public void printClass(File outputDir, ClassWrapper klass) throws IOException
+  {
+    if (! klass.hasNativeMethod())
+      return;
+    File klassFile = new File(outputDir, klass.name + ".cc");
+    klassFile.getParentFile().mkdirs();
+    String className = klass.name.replaceAll("/", "::");
+
+    CniPrintStream out = new CniPrintStream(new FileOutputStream(klassFile));
+    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.println("#include <" + klass.name + ".h>");
+    out.println("#include <gcj/cni.h>");
+    out.println("#include <java/lang/UnsupportedOperationException.h>");
+    out.println();
+
+    Iterator i = klass.methods.iterator();
+    boolean first = true;
+    while (i.hasNext())
+      {
+        MethodNode method = (MethodNode) i.next();
+        if (! Modifier.isNative(method.access))
+          continue;
+        if (! first)
+          out.println();
+        first = false;
+        out.print(Type.getReturnType(method.desc));
+        out.println();
+        printDecl(out, className, method);
+        out.println();
+        out.println("{");
+        out.print("  throw new ::java::lang::UnsupportedOperationException(");
+        out.print("JvNewStringLatin1 (\"");
+        printDecl(out, className, method);
+        out.println("\"));");
+        out.println("}");
+      }
+    out.close();
+  }
+
+}