Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System/compmod/system/codedom/compiler/CodeParser.cs

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+//------------------------------------------------------------------------------
+// <copyright file="CodeParser.cs" company="Microsoft">
+// 
+// <OWNER>petes</OWNER>
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>                                                                
+//------------------------------------------------------------------------------
+
+namespace System.CodeDom.Compiler {
+    using System.Text;
+
+    using System.Diagnostics;
+    using System;
+    using Microsoft.Win32;
+    using System.IO;
+    using System.Collections;
+    using System.Reflection;
+    using System.CodeDom;
+    using System.Security.Permissions;
+
+    /// <devdoc>
+    ///    <para>
+    ///       Provides a code parsing abstract base class.
+    ///    </para>
+    /// </devdoc>
+    [PermissionSet(SecurityAction.LinkDemand, Name="FullTrust")]
+    [PermissionSet(SecurityAction.InheritanceDemand, Name="FullTrust")]
+    public abstract class CodeParser : ICodeParser {
+    
+        /// <devdoc>
+        ///    <para>
+        ///       Compiles the given text stream into a CodeCompile unit.  
+        ///    </para>
+        /// </devdoc>
+        public abstract CodeCompileUnit Parse(TextReader codeStream);
+    }
+
+}