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JVM AOT compiler currently generating JavaScript, C++, Haxe, with initial focus on Kotlin and games.

There is a newer version: 0.6.8

/*
 * Copyright 2016 Carlos Ballesteros Velasco
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package java.io;

import java.lang.annotation.Native;

abstract class FileSystem {
	public abstract char getSeparator();

	public abstract char getPathSeparator();

	public abstract String normalize(String path);

	public abstract int prefixLength(String path);

	public abstract String resolve(String parent, String child);

	public abstract String getDefaultParent();

	public abstract String fromURIPath(String path);

	public abstract boolean isAbsolute(File f);

	public abstract String resolve(File f);

	public abstract String canonicalize(String path) throws IOException;

	@Native
	public static final int BA_EXISTS = 0x01;
	@Native
	public static final int BA_REGULAR = 0x02;
	@Native
	public static final int BA_DIRECTORY = 0x04;
	@Native
	public static final int BA_HIDDEN = 0x08;

	public abstract int getBooleanAttributes(File f);

	@Native
	public static final int ACCESS_READ = 0x04;
	@Native
	public static final int ACCESS_WRITE = 0x02;
	@Native
	public static final int ACCESS_EXECUTE = 0x01;

	public abstract boolean checkAccess(File f, int access);

	public abstract boolean setPermission(File f, int access, boolean enable, boolean owneronly);

	public abstract long getLastModifiedTime(File f);

	public abstract long getLength(File f);

	public abstract boolean createFileExclusively(String pathname) throws IOException;

	public abstract boolean delete(File f);

	public abstract String[] list(File f);

	public abstract boolean createDirectory(File f);

	public abstract boolean rename(File f1, File f2);

	public abstract boolean setLastModifiedTime(File f, long time);

	public abstract boolean setReadOnly(File f);

	public abstract File[] listRoots();

	@Native
	public static final int SPACE_TOTAL = 0;
	@Native
	public static final int SPACE_FREE = 1;
	@Native
	public static final int SPACE_USABLE = 2;

	public abstract long getSpace(File f, int t);

	public abstract int compare(File f1, File f2);

	public abstract int hashCode(File f);

	static boolean useCanonCaches = true;
	static boolean useCanonPrefixCache = true;
}