1 files changed, 102 insertions, 0 deletions
diff --git a/src/reflect/scala/tools/nsc/io/PlainFile.scala b/src/reflect/scala/tools/nsc/io/PlainFile.scala
new file mode 100644
index 0000000000..21276e8740
--- /dev/null
+++ b/src/reflect/scala/tools/nsc/io/PlainFile.scala
@@ -0,0 +1,102 @@
+/* NSC -- new Scala compiler
+ * Copyright 2005-2011 LAMP/EPFL
+ * @author  Martin Odersky
+ */
+
+
+package scala.tools.nsc
+package io
+
+import java.io.{ FileInputStream, FileOutputStream, IOException }
+import PartialFunction._
+
+object PlainFile {
+  /**
+   * If the specified File exists, returns an abstract file backed
+   * by it. Otherwise, returns null.
+   */
+  def fromPath(file: Path): PlainFile =
+    if (file.isDirectory) new PlainDirectory(file.toDirectory)
+    else if (file.isFile) new PlainFile(file)
+    else null
+}
+
+class PlainDirectory(givenPath: Directory) extends PlainFile(givenPath) {
+  override def isDirectory = true
+  override def iterator = givenPath.list filter (_.exists) map (x => new PlainFile(x))
+  override def delete(): Unit = givenPath.deleteRecursively()
+}
+
+/** This class implements an abstract file backed by a File.
+ */
+class PlainFile(val givenPath: Path) extends AbstractFile {
+  assert(path ne null)
+
+  val file = givenPath.jfile
+  override def underlyingSource = Some(this)
+
+  private val fpath = givenPath.toAbsolute
+
+  /** Returns the name of this abstract file. */
+  def name = givenPath.name
+
+  /** Returns the path of this abstract file. */
+  def path = givenPath.path
+
+  /** The absolute file. */
+  def absolute = new PlainFile(givenPath.toAbsolute)
+
+  override def container: AbstractFile = new PlainFile(givenPath.parent)
+  override def input = givenPath.toFile.inputStream()
+  override def output = givenPath.toFile.outputStream()
+  override def sizeOption = Some(givenPath.length.toInt)
+
+  override def toString = path
+  override def hashCode(): Int = fpath.hashCode
+  override def equals(that: Any): Boolean = that match {
+    case x: PlainFile => fpath == x.fpath
+    case _            => false
+  }
+
+  /** Is this abstract file a directory? */
+  def isDirectory: Boolean = givenPath.isDirectory
+
+  /** Returns the time that this abstract file was last modified. */
+  def lastModified: Long = givenPath.lastModified
+
+  /** Returns all abstract subfiles of this abstract directory. */
+  def iterator: Iterator[AbstractFile] = {
+    if (!isDirectory) Iterator.empty
+    else givenPath.toDirectory.list filter (_.exists) map (new PlainFile(_))
+  }
+
+  /**
+   * Returns the abstract file in this abstract directory with the
+   * specified name. If there is no such file, returns null. The
+   * argument "directory" tells whether to look for a directory or
+   * or a regular file.
+   *
+   * @param name      ...
+   * @param directory ...
+   * @return          ...
+   */
+  def lookupName(name: String, directory: Boolean): AbstractFile = {
+    val child = givenPath / name
+    if ((child.isDirectory && directory) || (child.isFile && !directory)) new PlainFile(child)
+    else null
+  }
+
+  /** Does this abstract file denote an existing file? */
+  def create(): Unit = if (!exists) givenPath.createFile()
+
+  /** Delete the underlying file or directory (recursively). */
+  def delete(): Unit =
+    if (givenPath.isFile) givenPath.delete()
+    else if (givenPath.isDirectory) givenPath.toDirectory.deleteRecursively()
+
+  /** Returns a plain file with the given name. It does not
+   *  check that it exists.
+   */
+  def lookupNameUnchecked(name: String, directory: Boolean): AbstractFile =
+    new PlainFile(givenPath / name)
+}