diff options
Diffstat (limited to 'tools/gnu/classpath/tools/javah/JniIncludePrinter.java')
-rw-r--r-- | tools/gnu/classpath/tools/javah/JniIncludePrinter.java | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/tools/gnu/classpath/tools/javah/JniIncludePrinter.java b/tools/gnu/classpath/tools/javah/JniIncludePrinter.java new file mode 100644 index 000000000..36ab33bc1 --- /dev/null +++ b/tools/gnu/classpath/tools/javah/JniIncludePrinter.java @@ -0,0 +1,144 @@ +/* JniIncludePrinter.java - Generate a JNI header 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.FieldNode; +import org.objectweb.asm.tree.MethodNode; + +public class JniIncludePrinter + extends Printer +{ + + protected JniIncludePrinter(Main classpath) + { + super(classpath); + } + + private void writeFields(ClassWrapper klass, JniPrintStream out) + { + 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) || field.value == null) + continue; + String name = (JniHelper.mangle(klass.name) + "_" + JniHelper.mangle(field.name)); + out.print("#undef "); + out.println(name); + out.print("#define "); + out.print(name); + out.print(" "); + out.print(field.value); + if (field.value instanceof Long) + out.print("LL"); + out.println(); + wroteAny = true; + } + } + if (wroteAny) + out.println(); + } + + 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 + ".h"); + + JniPrintStream out = new JniPrintStream(classpath, + new FileOutputStream(outFile), + klass); + out.println("/* DO NOT EDIT THIS FILE - it is machine generated */"); + out.println(); + out.print("#ifndef __"); + out.print(xname); + out.println("__"); + out.print("#define __"); + out.print(xname); + out.println("__"); + out.println(); + out.println("#include <jni.h>"); + 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(); + } + +} |