Code:
/ FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / clr / src / BCL / System / Reflection / MethodBody.cs / 1 / MethodBody.cs
// ==++== // // Copyright(c) Microsoft Corporation. All rights reserved. // // ==--== using System; using System.Globalization; using System.Collections.Generic; 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 sealed class ExceptionHandlingClause { #region Private costructor // This class can only be created from inside the EE. private ExceptionHandlingClause() { } #endregion #region Private Data Members private MethodBody m_methodBody; 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 ExceptionHandlingClauseOptions Flags { get { return m_flags; } } public int TryOffset { get { return m_tryOffset; } } public int TryLength { get { return m_tryLength; } } public int HandlerOffset { get { return m_handlerOffset; } } public int HandlerLength { get { return m_handlerLength; } } public int FilterOffset { get { if (m_flags != ExceptionHandlingClauseOptions.Filter) throw new InvalidOperationException(Environment.GetResourceString("Arg_EHClauseNotFilter")); return m_filterOffset; } } public 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 sealed class MethodBody { #region Private costructor // This class can only be created from inside the EE. private 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 int LocalSignatureMetadataToken { get { return m_localSignatureMetadataToken; } } public IListLocalVariables { get { return Array.AsReadOnly(m_localVariables); } } public int MaxStackSize { get { return m_maxStackSize; } } public bool InitLocals { get { return m_initLocals; } } public byte[] GetILAsByteArray() { return m_IL; } public IList ExceptionHandlingClauses { get { return Array.AsReadOnly(m_exceptionHandlingClauses); } } #endregion } [System.Runtime.InteropServices.ComVisible(true)] public class LocalVariableInfo { #region Private Data Members private int m_isPinned; private int m_localIndex; private RuntimeTypeHandle m_typeHandle; #endregion #region Constructor internal 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 { BCLDebug.Assert(m_typeHandle != null, "type handle must be set!"); return m_typeHandle.GetRuntimeType(); } } public virtual bool IsPinned { get { return m_isPinned != 0; } } public virtual int LocalIndex { get { return m_localIndex; } } #endregion } }
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