MethodImplAttribute.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / clr / src / BCL / System / Runtime / CompilerServices / MethodImplAttribute.cs / 1 / MethodImplAttribute.cs
                        

                        
                            // ==++== 
//
//   Copyright (c) Microsoft Corporation.  All rights reserved.
//
// ==--== 
namespace System.Runtime.CompilerServices {
 
    using System; 
    using System.Reflection;
 
    // This Enum matchs the miImpl flags defined in corhdr.h. It is used to specify
    // certain method properties.

    [Serializable] 
    [Flags]
[System.Runtime.InteropServices.ComVisible(true)] 
    public enum MethodImplOptions 
    {
        Unmanaged       =   System.Reflection.MethodImplAttributes.Unmanaged, 
        ForwardRef      =   System.Reflection.MethodImplAttributes.ForwardRef,
        PreserveSig     =   System.Reflection.MethodImplAttributes.PreserveSig,
        InternalCall    =   System.Reflection.MethodImplAttributes.InternalCall,
        Synchronized    =   System.Reflection.MethodImplAttributes.Synchronized, 
        NoInlining      =   System.Reflection.MethodImplAttributes.NoInlining,
        // **** If you add something, update internal MethodImplAttribute(MethodImplAttributes methodImplAttributes)! **** 
 	} 

    [Serializable] 
[System.Runtime.InteropServices.ComVisible(true)]
    public enum MethodCodeType
    {
        IL              =   System.Reflection.MethodImplAttributes.IL, 
        Native          =   System.Reflection.MethodImplAttributes.Native,
        ///  
        OPTIL           =   System.Reflection.MethodImplAttributes.OPTIL, 
        Runtime         =   System.Reflection.MethodImplAttributes.Runtime
    } 

    // Custom attribute to specify additional method properties.
    [Serializable, AttributeUsage(AttributeTargets.Method | AttributeTargets.Constructor, Inherited = false)]
[System.Runtime.InteropServices.ComVisible(true)] 
    sealed public class MethodImplAttribute : Attribute
    { 
        internal MethodImplOptions  _val; 
        public   MethodCodeType     MethodCodeType;
 
        internal MethodImplAttribute(MethodImplAttributes methodImplAttributes)
        {
            MethodImplOptions all =
                MethodImplOptions.Unmanaged | MethodImplOptions.ForwardRef | MethodImplOptions.PreserveSig | 
                MethodImplOptions.InternalCall | MethodImplOptions.Synchronized | MethodImplOptions.NoInlining;
            _val = ((MethodImplOptions)methodImplAttributes) & all; 
        } 

        public MethodImplAttribute(MethodImplOptions methodImplOptions) 
        {
            _val = methodImplOptions;
        }
 
        public MethodImplAttribute(short value)
        { 
            _val = (MethodImplOptions)value; 
        }
 
        public MethodImplAttribute()
        {
        }
 
        public MethodImplOptions Value { get {return _val;} }
    } 
 
}

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