MethodBody.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / clr / src / BCL / System / Reflection / MethodBody.cs / 1305376 / MethodBody.cs
                        

                        
                            // ==++== 
//
//   Copyright (c) Microsoft Corporation.  All rights reserved.
//
// ==--== 
// [....]
// 
 
using System;
using System.Globalization; 
using System.Collections.Generic;
using System.Diagnostics.Contracts;

namespace System.Reflection 
{
    [Flags()] 
    [System.Runtime.InteropServices.ComVisible(true)] 
    public enum ExceptionHandlingClauseOptions: int
    { 
        Clause = 0x0,
        Filter = 0x1,
        Finally = 0x2,
        Fault = 0x4, 
    }
 
    [System.Runtime.InteropServices.ComVisible(true)] 
    public class ExceptionHandlingClause
    { 
        #region costructor
        // This class can only be created from inside the EE.
        protected ExceptionHandlingClause() { }
        #endregion 

        #region Private Data Members 
        private MethodBody m_methodBody; 
        [ContractPublicPropertyName("Flags")]
        private ExceptionHandlingClauseOptions m_flags; 
        private int m_tryOffset;
        private int m_tryLength;
        private int m_handlerOffset;
        private int m_handlerLength; 
        private int m_catchMetadataToken;
        private int m_filterOffset; 
        #endregion 

        #region Public Members 
        public virtual ExceptionHandlingClauseOptions Flags { get { return m_flags; } }
        public virtual int TryOffset { get { return m_tryOffset; } }
        public virtual int TryLength { get { return m_tryLength; } }
        public virtual int HandlerOffset { get { return m_handlerOffset; } } 
        public virtual int HandlerLength { get { return m_handlerLength; } }
 
        public virtual int FilterOffset 
        {
            get 
            {
                if (m_flags != ExceptionHandlingClauseOptions.Filter)
                    throw new InvalidOperationException(Environment.GetResourceString("Arg_EHClauseNotFilter"));
 
                return m_filterOffset;
            } 
        } 

        public virtual Type CatchType 
        {
            get
            {
                if (m_flags != ExceptionHandlingClauseOptions.Clause) 
                    throw new InvalidOperationException(Environment.GetResourceString("Arg_EHClauseNotClause"));
 
                Type type = null; 

                if (!MetadataToken.IsNullToken(m_catchMetadataToken)) 
                {
                    Type declaringType = m_methodBody.m_methodBase.DeclaringType;
                    Module module = (declaringType == null) ? m_methodBody.m_methodBase.Module : declaringType.Module;
                    type = module.ResolveType(m_catchMetadataToken, (declaringType == null) ? null : declaringType.GetGenericArguments(), 
                        m_methodBody.m_methodBase is MethodInfo ? m_methodBody.m_methodBase.GetGenericArguments() : null);
                } 
 
                return type;
            } 
        }
        #endregion

        #region Object Overrides 
        public override string ToString()
        { 
            if (Flags == ExceptionHandlingClauseOptions.Clause) 
            {
                return String.Format(CultureInfo.CurrentUICulture, 
                    "Flags={0}, TryOffset={1}, TryLength={2}, HandlerOffset={3}, HandlerLength={4}, CatchType={5}",
                    Flags, TryOffset, TryLength, HandlerOffset, HandlerLength, CatchType);
            }
 
            if (Flags == ExceptionHandlingClauseOptions.Filter)
            { 
                return String.Format(CultureInfo.CurrentUICulture, 
                    "Flags={0}, TryOffset={1}, TryLength={2}, HandlerOffset={3}, HandlerLength={4}, FilterOffset={5}",
                    Flags, TryOffset, TryLength, HandlerOffset, HandlerLength, FilterOffset); 
            }

            return String.Format(CultureInfo.CurrentUICulture,
                "Flags={0}, TryOffset={1}, TryLength={2}, HandlerOffset={3}, HandlerLength={4}", 
                Flags, TryOffset, TryLength, HandlerOffset, HandlerLength);
 
        } 
        #endregion
    } 

    [System.Runtime.InteropServices.ComVisible(true)]
    public class MethodBody
    { 
        #region costructor
        // This class can only be created from inside the EE. 
        protected MethodBody() { } 
        #endregion
 
        #region Private Data Members
        private byte[] m_IL;
        private ExceptionHandlingClause[] m_exceptionHandlingClauses;
        private LocalVariableInfo[] m_localVariables; 
        internal MethodBase m_methodBase;
        private int m_localSignatureMetadataToken; 
        private int m_maxStackSize; 
        private bool m_initLocals;
        #endregion 

        #region Public Members
        public virtual int LocalSignatureMetadataToken { get { return m_localSignatureMetadataToken; } }
        public virtual IList LocalVariables { get { return Array.AsReadOnly(m_localVariables); } } 
        public virtual int MaxStackSize { get { return m_maxStackSize; } }
        public virtual bool InitLocals { get { return m_initLocals; } } 
        public virtual byte[] GetILAsByteArray() { return m_IL; } 
        public virtual IList ExceptionHandlingClauses { get { return Array.AsReadOnly(m_exceptionHandlingClauses); } }
        #endregion 
    }

    [System.Runtime.InteropServices.ComVisible(true)]
    public class LocalVariableInfo 
    {
        #region Private Data Members 
        private RuntimeType m_type; 
        private int m_isPinned;
        private int m_localIndex; 
        #endregion

        #region Constructor
        protected LocalVariableInfo() { } 
        #endregion
 
        #region Object Overrides 
        public override string ToString()
        { 
            string toString = LocalType.ToString() + " (" + LocalIndex + ")";

            if (IsPinned)
                toString += " (pinned)"; 

            return toString; 
        } 
        #endregion
 
        #region Public Members
        public virtual Type LocalType { get { Contract.Assert(m_type != null, "type must be set!"); return m_type; } }
        public virtual bool IsPinned { get { return m_isPinned != 0; } }
        public virtual int LocalIndex { get { return m_localIndex; } } 
        #endregion
    } 
} 


// File provided for Reference Use Only by Microsoft Corporation (c) 2007.

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