mcs/class/referencesource/System/regex/system/text/regularexpressions/compiledregexrunnerfactory.cs

   1 //------------------------------------------------------------------------------
   2 // <copyright file="CompiledRegexRunnerFactory.cs" company="Microsoft">
   3 //     Copyright (c) Microsoft Corporation.  All rights reserved.
   4 // </copyright>
   5 //------------------------------------------------------------------------------
   6
   7 using System.Diagnostics;
   8 using System.Security.Permissions;
   9
  10 #if !SILVERLIGHT && !FULL_AOT_RUNTIME
  11 using System.Reflection.Emit;
  12
  13 namespace System.Text.RegularExpressions {
  14
  15
  16     internal sealed class CompiledRegexRunnerFactory : RegexRunnerFactory {
  17         DynamicMethod goMethod;
  18         DynamicMethod findFirstCharMethod;
  19         DynamicMethod initTrackCountMethod;
  20
  21         internal CompiledRegexRunnerFactory (DynamicMethod go, DynamicMethod firstChar, DynamicMethod trackCount) {
  22             this.goMethod = go;
  23             this.findFirstCharMethod = firstChar;
  24             this.initTrackCountMethod = trackCount;
  25             //Debug.Assert(goMethod != null && findFirstCharMethod != null && initTrackCountMethod != null, "can't be null");
  26         }
  27
  28         protected internal override RegexRunner CreateInstance() {
  29             CompiledRegexRunner runner = new CompiledRegexRunner();
  30
  31 #if MONO_FEATURE_CAS
  32             new ReflectionPermission(PermissionState.Unrestricted).Assert();
  33 #endif
  34             runner.SetDelegates((NoParamDelegate)       goMethod.CreateDelegate(typeof(NoParamDelegate)),
  35                                 (FindFirstCharDelegate) findFirstCharMethod.CreateDelegate(typeof(FindFirstCharDelegate)),
  36                                 (NoParamDelegate)       initTrackCountMethod.CreateDelegate(typeof(NoParamDelegate)));
  37
  38             return runner;
  39         }
  40     }
  41
  42     internal delegate RegexRunner CreateInstanceDelegate();
  43 }
  44
  45 #endif
  46