365 lines
11 KiB
C#
365 lines
11 KiB
C#
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//
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// Copyright (C) 2004 Novell, Inc (http://www.novell.com)
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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//
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// System.Reflection/RuntimeFieldInfo.cs
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// The class used to represent Fields from the mono runtime.
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//
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// Author:
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// Paolo Molaro (lupus@ximian.com)
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//
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// (C) 2001 Ximian, Inc. http://www.ximian.com
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//
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using System;
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using System.Collections.Generic;
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using System.Globalization;
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using System.Runtime.CompilerServices;
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using System.Runtime.InteropServices;
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using System.Runtime.Serialization;
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using System.Diagnostics;
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using System.Diagnostics.Contracts;
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namespace System.Reflection {
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abstract class RtFieldInfo : FieldInfo {
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internal abstract object UnsafeGetValue (object obj);
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internal abstract void UnsafeSetValue (Object obj, Object value, BindingFlags invokeAttr, Binder binder, CultureInfo culture);
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internal abstract void CheckConsistency(Object target);
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}
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[Serializable]
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[StructLayout (LayoutKind.Sequential)]
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class RuntimeFieldInfo : RtFieldInfo
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#if !NETCORE
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, ISerializable
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#endif
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{
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#pragma warning disable 649
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internal IntPtr klass;
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internal RuntimeFieldHandle fhandle;
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string name;
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Type type;
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FieldAttributes attrs;
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#pragma warning restore 649
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internal BindingFlags BindingFlags {
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get {
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return 0;
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}
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}
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public override Module Module {
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get {
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return GetRuntimeModule ();
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}
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}
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internal RuntimeType GetDeclaringTypeInternal ()
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{
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return (RuntimeType) DeclaringType;
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}
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RuntimeType ReflectedTypeInternal {
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get {
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return (RuntimeType) ReflectedType;
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}
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}
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internal RuntimeModule GetRuntimeModule ()
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{
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return GetDeclaringTypeInternal ().GetRuntimeModule ();
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}
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#if !NETCORE
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#region ISerializable Implementation
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public void GetObjectData(SerializationInfo info, StreamingContext context)
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{
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if (info == null)
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throw new ArgumentNullException("info");
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Contract.EndContractBlock();
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MemberInfoSerializationHolder.GetSerializationInfo(
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info,
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Name,
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ReflectedTypeInternal,
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ToString(),
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MemberTypes.Field);
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}
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#endregion
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#endif
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[MethodImplAttribute(MethodImplOptions.InternalCall)]
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internal override extern object UnsafeGetValue (object obj);
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internal override void CheckConsistency(Object target)
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{
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// only test instance fields
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if ((Attributes & FieldAttributes.Static) != FieldAttributes.Static)
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{
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if (!DeclaringType.IsInstanceOfType(target))
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{
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if (target == null)
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{
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#if FEATURE_LEGACYNETCF
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if (CompatibilitySwitches.IsAppEarlierThanWindowsPhone8)
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throw new ArgumentNullException(Environment.GetResourceString("RFLCT.Targ_StatFldReqTarg"));
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else
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#endif
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throw new TargetException(Environment.GetResourceString("RFLCT.Targ_StatFldReqTarg"));
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}
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else
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{
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throw new ArgumentException(
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String.Format(CultureInfo.CurrentUICulture, Environment.GetResourceString("Arg_FieldDeclTarget"),
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Name, DeclaringType, target.GetType()));
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}
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}
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}
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}
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[DebuggerStepThroughAttribute]
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[Diagnostics.DebuggerHidden]
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internal override void UnsafeSetValue (Object obj, Object value, BindingFlags invokeAttr, Binder binder, CultureInfo culture)
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{
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bool domainInitialized = false;
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RuntimeFieldHandle.SetValue (this, obj, value, null, Attributes, null, ref domainInitialized);
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}
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[DebuggerStepThroughAttribute]
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[Diagnostics.DebuggerHidden]
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public override void SetValueDirect(TypedReference obj, Object value)
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{
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if (obj.IsNull)
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throw new ArgumentException(Environment.GetResourceString("Arg_TypedReference_Null"));
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Contract.EndContractBlock();
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unsafe
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{
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// Passing TypedReference by reference is easier to make correct in native code
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RuntimeFieldHandle.SetValueDirect(this, (RuntimeType)FieldType, &obj, value, (RuntimeType)DeclaringType);
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}
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}
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[DebuggerStepThroughAttribute]
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[Diagnostics.DebuggerHidden]
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public override Object GetValueDirect(TypedReference obj)
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{
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if (obj.IsNull)
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throw new ArgumentException(Environment.GetResourceString("Arg_TypedReference_Null"));
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Contract.EndContractBlock();
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unsafe
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{
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// Passing TypedReference by reference is easier to make correct in native code
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return RuntimeFieldHandle.GetValueDirect(this, (RuntimeType)FieldType, &obj, (RuntimeType)DeclaringType);
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}
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}
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public override FieldAttributes Attributes {
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get {
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return attrs;
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}
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}
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public override RuntimeFieldHandle FieldHandle {
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get {
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return fhandle;
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}
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}
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[MethodImplAttribute(MethodImplOptions.InternalCall)]
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extern Type ResolveType ();
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public override Type FieldType {
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get {
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if (type == null)
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type = ResolveType ();
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return type;
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}
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}
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[MethodImplAttribute(MethodImplOptions.InternalCall)]
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private extern Type GetParentType (bool declaring);
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public override Type ReflectedType {
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get {
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return GetParentType (false);
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}
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}
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public override Type DeclaringType {
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get {
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return GetParentType (true);
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}
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}
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public override string Name {
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get {
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return name;
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}
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}
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public override bool IsDefined (Type attributeType, bool inherit) {
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return MonoCustomAttrs.IsDefined (this, attributeType, inherit);
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}
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public override object[] GetCustomAttributes( bool inherit) {
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return MonoCustomAttrs.GetCustomAttributes (this, inherit);
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}
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public override object[] GetCustomAttributes( Type attributeType, bool inherit) {
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return MonoCustomAttrs.GetCustomAttributes (this, attributeType, inherit);
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}
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#if !NETCORE
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[MethodImplAttribute(MethodImplOptions.InternalCall)]
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internal override extern int GetFieldOffset ();
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#endif
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[MethodImplAttribute(MethodImplOptions.InternalCall)]
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private extern object GetValueInternal (object obj);
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public override object GetValue (object obj)
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{
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if (!IsStatic) {
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if (obj == null)
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throw new TargetException ("Non-static field requires a target");
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if (!DeclaringType.IsAssignableFrom (obj.GetType ()))
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throw new ArgumentException (string.Format (
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"Field {0} defined on type {1} is not a field on the target object which is of type {2}.",
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Name, DeclaringType, obj.GetType ()),
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"obj");
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}
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if (!IsLiteral)
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CheckGeneric ();
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return GetValueInternal (obj);
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}
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public override string ToString () {
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return String.Format ("{0} {1}", FieldType, name);
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}
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[MethodImplAttribute(MethodImplOptions.InternalCall)]
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private static extern void SetValueInternal (FieldInfo fi, object obj, object value);
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public override void SetValue (object obj, object val, BindingFlags invokeAttr, Binder binder, CultureInfo culture)
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{
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if (!IsStatic) {
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if (obj == null)
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throw new TargetException ("Non-static field requires a target");
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if (!DeclaringType.IsAssignableFrom (obj.GetType ()))
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throw new ArgumentException (string.Format (
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"Field {0} defined on type {1} is not a field on the target object which is of type {2}.",
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Name, DeclaringType, obj.GetType ()),
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"obj");
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}
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if (IsLiteral)
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throw new FieldAccessException ("Cannot set a constant field");
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if (binder == null)
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binder = Type.DefaultBinder;
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CheckGeneric ();
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if (val != null) {
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RuntimeType fieldType = (RuntimeType) FieldType;
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val = fieldType.CheckValue (val, binder, culture, invokeAttr);
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}
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SetValueInternal (this, obj, val);
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}
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internal RuntimeFieldInfo Clone (string newName)
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{
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RuntimeFieldInfo field = new RuntimeFieldInfo ();
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field.name = newName;
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field.type = type;
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field.attrs = attrs;
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field.klass = klass;
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field.fhandle = fhandle;
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return field;
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}
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[MethodImplAttribute(MethodImplOptions.InternalCall)]
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public override extern object GetRawConstantValue ();
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public override IList<CustomAttributeData> GetCustomAttributesData () {
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return CustomAttributeData.GetCustomAttributes (this);
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}
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void CheckGeneric () {
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if (DeclaringType.ContainsGenericParameters)
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throw new InvalidOperationException ("Late bound operations cannot be performed on fields with types for which Type.ContainsGenericParameters is true.");
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}
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#if MOBILE
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static int get_core_clr_security_level ()
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{
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return 1;
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}
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#else
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//seclevel { transparent = 0, safe-critical = 1, critical = 2}
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[MethodImplAttribute(MethodImplOptions.InternalCall)]
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public extern int get_core_clr_security_level ();
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public override bool IsSecurityTransparent {
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get { return get_core_clr_security_level () == 0; }
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}
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public override bool IsSecurityCritical {
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get { return get_core_clr_security_level () > 0; }
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}
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public override bool IsSecuritySafeCritical {
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get { return get_core_clr_security_level () == 1; }
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}
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#endif
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#if !NETCORE
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public sealed override bool HasSameMetadataDefinitionAs (MemberInfo other) => HasSameMetadataDefinitionAsCore<RuntimeFieldInfo> (other);
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#endif
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public override int MetadataToken {
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get {
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return get_metadata_token (this);
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}
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}
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[MethodImplAttribute (MethodImplOptions.InternalCall)]
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internal static extern int get_metadata_token (RuntimeFieldInfo monoField);
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[MethodImplAttribute (MethodImplOptions.InternalCall)]
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extern Type[] GetTypeModifiers (bool optional);
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public override Type[] GetOptionalCustomModifiers () => GetCustomModifiers (true);
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public override Type[] GetRequiredCustomModifiers () => GetCustomModifiers (false);
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private Type[] GetCustomModifiers (bool optional) => GetTypeModifiers (optional) ?? Type.EmptyTypes;
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#if NETCORE
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internal object[] GetPseudoCustomAttributes () {
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throw new NotImplementedException ();
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}
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internal CustomAttributeData[] GetPseudoCustomAttributesData () {
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throw new NotImplementedException ();
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}
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#endif
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}
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}
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