Imported Upstream version 5.0.0.42

Former-commit-id: fd56571888259555122d8a0f58c68838229cea2b

external/corefx/src/System.IO.FileSystem.Watcher/ref/Configurations.props

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+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <BuildConfigurations>
+      netcoreapp;
+      uap;
+    </BuildConfigurations>
+  </PropertyGroup>
+</Project>

external/corefx/src/System.IO.FileSystem.Watcher/ref/System.IO.FileSystem.Watcher.cs

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+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+// ------------------------------------------------------------------------------
+// Changes to this file must follow the http://aka.ms/api-review process.
+// ------------------------------------------------------------------------------
+
+
+namespace System.IO
+{
+    public partial class ErrorEventArgs : System.EventArgs
+    {
+        public ErrorEventArgs(System.Exception exception) { }
+        public virtual System.Exception GetException() { throw null; }
+    }
+    public delegate void ErrorEventHandler(object sender, System.IO.ErrorEventArgs e);
+    public partial class FileSystemEventArgs : System.EventArgs
+    {
+        public FileSystemEventArgs(System.IO.WatcherChangeTypes changeType, string directory, string name) { }
+        public System.IO.WatcherChangeTypes ChangeType { get { throw null; } }
+        public string FullPath { get { throw null; } }
+        public string Name { get { throw null; } }
+    }
+    public delegate void FileSystemEventHandler(object sender, System.IO.FileSystemEventArgs e);
+    public partial class FileSystemWatcher : System.ComponentModel.Component, System.ComponentModel.ISupportInitialize
+    {
+        public FileSystemWatcher() { }
+        public FileSystemWatcher(string path) { }
+        public FileSystemWatcher(string path, string filter) { }
+        public bool EnableRaisingEvents { get { throw null; } set { } }
+        public string Filter { get { throw null; } set { } }
+        public bool IncludeSubdirectories { get { throw null; } set { } }
+        public int InternalBufferSize { get { throw null; } set { } }
+        public System.IO.NotifyFilters NotifyFilter { get { throw null; } set { } }
+        public string Path { get { throw null; } set { } }
+        public event System.IO.FileSystemEventHandler Changed { add { } remove { } }
+        public event System.IO.FileSystemEventHandler Created { add { } remove { } }
+        public event System.IO.FileSystemEventHandler Deleted { add { } remove { } }
+        public event System.IO.ErrorEventHandler Error { add { } remove { } }
+        public event System.IO.RenamedEventHandler Renamed { add { } remove { } }
+        protected void OnChanged(System.IO.FileSystemEventArgs e) { }
+        protected void OnCreated(System.IO.FileSystemEventArgs e) { }
+        protected void OnDeleted(System.IO.FileSystemEventArgs e) { }
+        protected void OnError(System.IO.ErrorEventArgs e) { }
+        protected void OnRenamed(System.IO.RenamedEventArgs e) { }
+        public System.IO.WaitForChangedResult WaitForChanged(System.IO.WatcherChangeTypes changeType) { throw null; }
+        public System.IO.WaitForChangedResult WaitForChanged(System.IO.WatcherChangeTypes changeType, int timeout) { throw null; }
+        public override System.ComponentModel.ISite Site { get { throw null; } set { } }
+        public System.ComponentModel.ISynchronizeInvoke SynchronizingObject { get { throw null; } set { } }
+        public void BeginInit() { }
+        protected override void Dispose(bool disposing) { }
+        public void EndInit() { }
+    }
+    [Serializable]
+    public partial class InternalBufferOverflowException : System.SystemException
+    {
+        public InternalBufferOverflowException() { }
+        public InternalBufferOverflowException(string message) { }
+        public InternalBufferOverflowException(string message, System.Exception inner) { }
+        protected InternalBufferOverflowException(System.Runtime.Serialization.SerializationInfo info, System.Runtime.Serialization.StreamingContext context) { }
+    }
+    [System.FlagsAttribute]
+    public enum NotifyFilters
+    {
+        Attributes = 4,
+        CreationTime = 64,
+        DirectoryName = 2,
+        FileName = 1,
+        LastAccess = 32,
+        LastWrite = 16,
+        Security = 256,
+        Size = 8,
+    }
+    public partial class RenamedEventArgs : System.IO.FileSystemEventArgs
+    {
+        public RenamedEventArgs(System.IO.WatcherChangeTypes changeType, string directory, string name, string oldName) : base(default(System.IO.WatcherChangeTypes), default(string), default(string)) { }
+        public string OldFullPath { get { throw null; } }
+        public string OldName { get { throw null; } }
+    }
+    public delegate void RenamedEventHandler(object sender, System.IO.RenamedEventArgs e);
+    public struct WaitForChangedResult
+    {
+        public System.IO.WatcherChangeTypes ChangeType { get { throw null; } set { } }
+        public string Name { get { throw null; } set { } }
+        public string OldName { get { throw null; } set { } }
+        public bool TimedOut { get { throw null; } set { } }
+    }
+    [System.FlagsAttribute]
+    public enum WatcherChangeTypes
+    {
+        All = 15,
+        Changed = 4,
+        Created = 1,
+        Deleted = 2,
+        Renamed = 8,
+    }
+}

external/corefx/src/System.IO.FileSystem.Watcher/ref/System.IO.FileSystem.Watcher.csproj

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+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), dir.props))\dir.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'netcoreapp-Debug|AnyCPU'" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'netcoreapp-Release|AnyCPU'" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'uap-Debug|AnyCPU'" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'uap-Release|AnyCPU'" />
+  <ItemGroup>
+    <Compile Include="System.IO.FileSystem.Watcher.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\..\System.Runtime\ref\System.Runtime.csproj" />
+    <ProjectReference Include="..\..\System.ComponentModel.Primitives\ref\System.ComponentModel.Primitives.csproj" />
+    <ProjectReference Include="..\..\System.ComponentModel.TypeConverter\ref\System.ComponentModel.TypeConverter.csproj" />
+  </ItemGroup>
+  <Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), dir.targets))\dir.targets" />
+</Project>