diff options
Diffstat (limited to 'src/System.Private.CoreLib/shared/System/Reflection/Emit/Label.cs')
-rw-r--r-- | src/System.Private.CoreLib/shared/System/Reflection/Emit/Label.cs | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/src/System.Private.CoreLib/shared/System/Reflection/Emit/Label.cs b/src/System.Private.CoreLib/shared/System/Reflection/Emit/Label.cs new file mode 100644 index 000000000..e49d471a9 --- /dev/null +++ b/src/System.Private.CoreLib/shared/System/Reflection/Emit/Label.cs @@ -0,0 +1,75 @@ +// 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. + +/*============================================================ +** +** +** +** +** +** +** Purpose: Represents a Label to the ILGenerator class. +** +** +===========================================================*/ + +using System; +using System.Reflection; +using System.Runtime.InteropServices; + +namespace System.Reflection.Emit +{ + // The Label class is an opaque representation of a label used by the + // ILGenerator class. The token is used to mark where labels occur in the IL + // stream and then the necessary offsets are put back in the code when the ILGenerator + // is passed to the MethodWriter. + // Labels are created by using ILGenerator.CreateLabel and their position is set + // by using ILGenerator.MarkLabel. + public struct Label + { + internal int m_label; + + //public Label() { + // m_label=0; + //} + + internal Label(int label) + { + m_label = label; + } + + internal int GetLabelValue() + { + return m_label; + } + + public override int GetHashCode() + { + return m_label; + } + + public override bool Equals(object obj) + { + if (obj is Label) + return Equals((Label)obj); + else + return false; + } + + public bool Equals(Label obj) + { + return obj.m_label == m_label; + } + + public static bool operator ==(Label a, Label b) + { + return a.Equals(b); + } + + public static bool operator !=(Label a, Label b) + { + return !(a == b); + } + } +} |