Code:
/ DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / clr / src / BCL / System / Reflection / Emit / FieldBuilder.cs / 1 / FieldBuilder.cs
// ==++== // // Copyright (c) Microsoft Corporation. All rights reserved. // // ==--== namespace System.Reflection.Emit { using System.Runtime.InteropServices; using System; using CultureInfo = System.Globalization.CultureInfo; using System.Reflection; using System.Security.Permissions; [HostProtection(MayLeakOnAbort = true)] [ClassInterface(ClassInterfaceType.None)] [ComDefaultInterface(typeof(_FieldBuilder))] [System.Runtime.InteropServices.ComVisible(true)] public sealed class FieldBuilder : FieldInfo, _FieldBuilder { #region Private Data Members private int m_fieldTok; private FieldToken m_tkField; private TypeBuilder m_typeBuilder; private String m_fieldName; private FieldAttributes m_Attributes; private Type m_fieldType; internal byte[] m_data; #endregion #region Constructor internal FieldBuilder(TypeBuilder typeBuilder, String fieldName, Type type, Type[] requiredCustomModifiers, Type[] optionalCustomModifiers, FieldAttributes attributes) { if (fieldName == null) throw new ArgumentNullException("fieldName"); if (fieldName.Length == 0) throw new ArgumentException(Environment.GetResourceString("Argument_EmptyName"), "fieldName"); if (fieldName[0] == '\0') throw new ArgumentException(Environment.GetResourceString("Argument_IllegalName"), "fieldName"); if (type == null) throw new ArgumentNullException("type"); if (type == typeof(void)) throw new ArgumentException(Environment.GetResourceString("Argument_BadFieldType")); m_fieldName = fieldName; m_typeBuilder = typeBuilder; m_fieldType = type; m_Attributes = attributes & ~FieldAttributes.ReservedMask; SignatureHelper sigHelp = SignatureHelper.GetFieldSigHelper(m_typeBuilder.Module); sigHelp.AddArgument(type, requiredCustomModifiers, optionalCustomModifiers); int sigLength; byte[] signature = sigHelp.InternalGetSignature(out sigLength); m_fieldTok = TypeBuilder.InternalDefineField( typeBuilder.TypeToken.Token, fieldName, signature, sigLength, m_Attributes, m_typeBuilder.Module); m_tkField = new FieldToken(m_fieldTok, type); } #endregion #region Internal Members internal void SetData(byte[] data, int size) { if (data != null) { m_data = new byte[data.Length]; Array.Copy(data, m_data, data.Length); } m_typeBuilder.Module.InternalSetFieldRVAContent(m_tkField.Token, data, size); } internal TypeBuilder GetTypeBuilder() { return m_typeBuilder; } #endregion #region MemberInfo Overrides internal override int MetadataTokenInternal { get { return m_fieldTok; } } public override Module Module { get { return m_typeBuilder.Module; } } public override String Name { get {return m_fieldName; } } public override Type DeclaringType { get { if (m_typeBuilder.m_isHiddenGlobalType == true) return null; return m_typeBuilder; } } public override Type ReflectedType { get { if (m_typeBuilder.m_isHiddenGlobalType == true) return null; return m_typeBuilder; } } #endregion #region FieldInfo Overrides public override Type FieldType { get { return m_fieldType; } } public override Object GetValue(Object obj) { // NOTE!! If this is implemented, make sure that this throws // a NotSupportedException for Save-only dynamic assemblies. // Otherwise, it could cause the .cctor to be executed. throw new NotSupportedException(Environment.GetResourceString("NotSupported_DynamicModule")); } public override void SetValue(Object obj,Object val,BindingFlags invokeAttr,Binder binder,CultureInfo culture) { // NOTE!! If this is implemented, make sure that this throws // a NotSupportedException for Save-only dynamic assemblies. // Otherwise, it could cause the .cctor to be executed. throw new NotSupportedException(Environment.GetResourceString("NotSupported_DynamicModule")); } public override RuntimeFieldHandle FieldHandle { get { throw new NotSupportedException(Environment.GetResourceString("NotSupported_DynamicModule")); } } public override FieldAttributes Attributes { get { return m_Attributes; } } #endregion #region ICustomAttributeProvider Implementation public override Object[] GetCustomAttributes(bool inherit) { throw new NotSupportedException(Environment.GetResourceString("NotSupported_DynamicModule")); } public override Object[] GetCustomAttributes(Type attributeType, bool inherit) { throw new NotSupportedException(Environment.GetResourceString("NotSupported_DynamicModule")); } public override bool IsDefined(Type attributeType, bool inherit) { throw new NotSupportedException(Environment.GetResourceString("NotSupported_DynamicModule")); } #endregion #region Public Members public FieldToken GetToken() { return m_tkField; } public void SetOffset(int iOffset) { m_typeBuilder.ThrowIfCreated(); TypeBuilder.InternalSetFieldOffset(m_typeBuilder.Module, GetToken().Token, iOffset); } [Obsolete("An alternate API is available: Emit the MarshalAs custom attribute instead. http://go.microsoft.com/fwlink/?linkid=14202")] public void SetMarshal(UnmanagedMarshal unmanagedMarshal) { m_typeBuilder.ThrowIfCreated(); if (unmanagedMarshal == null) throw new ArgumentNullException("unmanagedMarshal"); byte[] ubMarshal = unmanagedMarshal.InternalGetBytes(); TypeBuilder.InternalSetMarshalInfo(m_typeBuilder.Module, GetToken().Token, ubMarshal, ubMarshal.Length); } public void SetConstant(Object defaultValue) { m_typeBuilder.ThrowIfCreated(); TypeBuilder.SetConstantValue(m_typeBuilder.Module, GetToken().Token, m_fieldType, defaultValue); } [System.Runtime.InteropServices.ComVisible(true)] public void SetCustomAttribute(ConstructorInfo con, byte[] binaryAttribute) { ModuleBuilder module = m_typeBuilder.Module as ModuleBuilder; m_typeBuilder.ThrowIfCreated(); if (con == null) throw new ArgumentNullException("con"); if (binaryAttribute == null) throw new ArgumentNullException("binaryAttribute"); TypeBuilder.InternalCreateCustomAttribute( m_tkField.Token, module.GetConstructorToken(con).Token, binaryAttribute, module, false); } public void SetCustomAttribute(CustomAttributeBuilder customBuilder) { m_typeBuilder.ThrowIfCreated(); if (customBuilder == null) throw new ArgumentNullException("customBuilder"); ModuleBuilder module = m_typeBuilder.Module as ModuleBuilder; customBuilder.CreateCustomAttribute(module, m_tkField.Token); } #endregion void _FieldBuilder.GetTypeInfoCount(out uint pcTInfo) { throw new NotImplementedException(); } void _FieldBuilder.GetTypeInfo(uint iTInfo, uint lcid, IntPtr ppTInfo) { throw new NotImplementedException(); } void _FieldBuilder.GetIDsOfNames([In] ref Guid riid, IntPtr rgszNames, uint cNames, uint lcid, IntPtr rgDispId) { throw new NotImplementedException(); } void _FieldBuilder.Invoke(uint dispIdMember, [In] ref Guid riid, uint lcid, short wFlags, IntPtr pDispParams, IntPtr pVarResult, IntPtr pExcepInfo, IntPtr puArgErr) { throw new NotImplementedException(); } } }
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