84 lines
2.5 KiB
C#
84 lines
2.5 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.Generic;
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namespace dnSpy.Debugger.DotNet.Metadata.Impl {
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sealed class WellKnownMemberResolver {
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readonly object lockObj;
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readonly HashSet<DmdModule> checkedModules;
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readonly DmdAppDomain appDomain;
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readonly DmdType[] wellKnownTypes;
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public WellKnownMemberResolver(DmdAppDomain appDomain) {
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lockObj = new object();
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checkedModules = new HashSet<DmdModule>();
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this.appDomain = appDomain ?? throw new ArgumentNullException(nameof(appDomain));
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wellKnownTypes = new DmdType[DmdWellKnownTypeUtils.WellKnownTypesCount];
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}
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public DmdType? GetWellKnownType(DmdWellKnownType wellKnownType, bool onlyCorLib) {
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if ((uint)wellKnownType >= (uint)wellKnownTypes.Length)
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return null;
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ref var cachedType = ref wellKnownTypes[(int)wellKnownType];
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if (cachedType is not null)
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return cachedType;
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lock (lockObj) {
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DmdAssembly[] assemblies;
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if (onlyCorLib) {
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var corlib = appDomain.CorLib;
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if (corlib is null)
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return null;
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assemblies = new[] { corlib };
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}
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else
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assemblies = appDomain.GetAssemblies();
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foreach (var assembly in assemblies) {
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foreach (var module in assembly.GetModules()) {
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if (module.IsSynthetic)
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continue;
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if (!checkedModules.Add(module))
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continue;
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// There are no well known types in dynamic/in-memory assemblies
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if (module.IsDynamic || module.IsInMemory)
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continue;
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foreach (var type in module.GetTypes()) {
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if (DmdWellKnownTypeUtils.TryGetWellKnownType(DmdTypeName.Create(type), out var wkt)) {
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ref var elem = ref wellKnownTypes[(int)wkt];
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if (elem is null)
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elem = type;
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}
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}
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if (cachedType is not null)
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return cachedType;
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}
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}
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}
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return null;
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}
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}
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}
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