/* ****************************************************************************
*
* Copyright (c) Microsoft Corporation.
*
* This source code is subject to terms and conditions of the Microsoft Public License. A
* copy of the license can be found in the License.html file at the root of this distribution. If
* you cannot locate the Microsoft Public License, please send an email to
* dlr@microsoft.com. By using this source code in any fashion, you are agreeing to be bound
* by the terms of the Microsoft Public License.
*
* You must not remove this notice, or any other, from this software.
*
*
* ***************************************************************************/
using System.Security;
using System;
namespace Microsoft.Scripting{
/// <summary>
/// This class holds onto internal debugging options used in this assembly.
/// These options can be set via environment variables DLR_{option-name}.
/// Boolean options map "true" to true and other values to false.
///
/// These options are for internal debugging only, and should not be
/// exposed through any public APIs.
/// </summary>
internal static class DebugOptions {
private static bool ReadOption(string name) {
#if SILVERLIGHT
return false;
#else
string envVar = ReadString(name);
return envVar != null && envVar.ToLowerInvariant() == "true";
#endif
}
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "name")]
private static bool ReadDebugOption(string name) {
#if DEBUG
return ReadOption(name);
#else
return false;
#endif
}
private static string ReadString(string name) {
#if SILVERLIGHT
return null;
#else
try {
return Environment.GetEnvironmentVariable("DLR_" + name);
} catch (SecurityException) {
return null;
}
#endif
}
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "name")]
private static string ReadDebugString(string name) {
#if DEBUG
return ReadString(name);
#else
return null;
#endif
}
private readonly static bool _trackPerformance = ReadDebugOption("TrackPerformance");
internal static bool TrackPerformance {
get { return _trackPerformance; }
}
}
}
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