80 lines
3.6 KiB
C#
80 lines
3.6 KiB
C#
/*
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Copyright (C) 2014-2019 de4dot@gmail.com
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This file is part of dnSpy
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dnSpy is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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dnSpy is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with dnSpy. If not, see <http://www.gnu.org/licenses/>.
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*/
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using System;
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using System.Collections.ObjectModel;
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using System.Diagnostics;
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using System.Threading;
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namespace dnSpy.Debugger.DotNet.Metadata.Impl {
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sealed class DmdFieldRef : DmdFieldInfoBase {
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public override DmdAppDomain AppDomain => declaringTypeRef.AppDomain;
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public override string Name { get; }
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public override DmdType FieldType { get; }
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public override bool IsMetadataReference => true;
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public override DmdType? DeclaringType => __resolvedField_DONT_USE?.DeclaringType ?? declaringTypeRef;
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public override DmdType? ReflectedType => DeclaringType;
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public override int MetadataToken => ResolvedField.MetadataToken;
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public override DmdFieldAttributes Attributes => ResolvedField.Attributes;
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public override uint FieldRVA => ResolvedField.FieldRVA;
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DmdFieldDef ResolvedField => GetResolvedField(throwOnError: true)!;
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DmdFieldDef? GetResolvedField(bool throwOnError) {
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if (__resolvedField_DONT_USE is not null)
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return __resolvedField_DONT_USE;
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DmdFieldDef? newResolvedField = null;
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var declType = declaringTypeRef.Resolve(throwOnError);
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if (declType is not null) {
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var nonGenericInstDeclType = declType.IsGenericType ? declType.GetGenericTypeDefinition() : declType;
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var nonGenericInstDeclTypeField = (DmdFieldDef?)nonGenericInstDeclType?.GetField(Name, rawFieldType, throwOnError: false);
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if (nonGenericInstDeclTypeField is not null) {
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newResolvedField = (object?)nonGenericInstDeclTypeField.DeclaringType == declType ?
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nonGenericInstDeclTypeField :
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(DmdFieldDef?)declType.GetField(nonGenericInstDeclTypeField.Module, nonGenericInstDeclTypeField.MetadataToken);
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Debug2.Assert(newResolvedField is not null);
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}
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}
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if (newResolvedField is not null) {
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Interlocked.CompareExchange(ref __resolvedField_DONT_USE, newResolvedField, null);
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Debug.Assert(DmdMemberInfoEqualityComparer.DefaultMember.Equals(__resolvedField_DONT_USE!.ReflectedType, declaringTypeRef));
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return __resolvedField_DONT_USE;
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}
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if (throwOnError)
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throw new FieldResolveException(this);
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return null;
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}
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volatile DmdFieldDef? __resolvedField_DONT_USE;
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readonly DmdType declaringTypeRef;
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readonly DmdType rawFieldType;
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public DmdFieldRef(DmdType declaringTypeRef, string name, DmdType rawFieldType, DmdType fieldType) {
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this.declaringTypeRef = declaringTypeRef ?? throw new ArgumentNullException(nameof(declaringTypeRef));
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Name = name ?? throw new ArgumentNullException(nameof(name));
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this.rawFieldType = rawFieldType ?? throw new ArgumentNullException(nameof(rawFieldType));
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FieldType = fieldType ?? throw new ArgumentNullException(nameof(fieldType));
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}
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public override DmdFieldInfo? Resolve(bool throwOnError) => GetResolvedField(throwOnError);
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public override object? GetRawConstantValue() => ResolvedField.GetRawConstantValue();
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public override ReadOnlyCollection<DmdCustomAttributeData> GetCustomAttributesData() => ResolvedField.GetCustomAttributesData();
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}
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}
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