82 lines
2.2 KiB
C#
82 lines
2.2 KiB
C#
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/*
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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.Collections.Generic;
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using System.Diagnostics;
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using dnSpy.Debugger.DotNet.Metadata;
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namespace dnSpy.Debugger.DotNet.Evaluation.Engine {
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struct ModuleRefFinder {
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readonly HashSet<DmdModule> modules;
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int recursionCounter;
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ModuleRefFinder(bool dummy) {
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modules = new HashSet<DmdModule>();
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recursionCounter = 0;
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}
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public static ModuleRefFinder Create() => new ModuleRefFinder(true);
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public HashSet<DmdModule> GetModules() => modules;
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public void Add(DmdType type) {
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if (recursionCounter > 100)
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return;
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recursionCounter++;
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while (type.GetElementType() is DmdType etype)
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type = etype;
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switch (type.TypeSignatureKind) {
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case DmdTypeSignatureKind.Type:
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modules.Add(type.Module);
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break;
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case DmdTypeSignatureKind.Pointer:
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case DmdTypeSignatureKind.ByRef:
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case DmdTypeSignatureKind.TypeGenericParameter:
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case DmdTypeSignatureKind.MethodGenericParameter:
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case DmdTypeSignatureKind.SZArray:
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case DmdTypeSignatureKind.MDArray:
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break;
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case DmdTypeSignatureKind.GenericInstance:
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modules.Add(type.GetGenericTypeDefinition().Module);
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foreach (var ga in type.GetGenericArguments())
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Add(ga);
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break;
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case DmdTypeSignatureKind.FunctionPointer:
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var sig = type.GetFunctionPointerMethodSignature();
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Add(sig.ReturnType);
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foreach (var t in sig.GetParameterTypes())
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Add(t);
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foreach (var t in sig.GetVarArgsParameterTypes())
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Add(t);
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break;
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default:
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Debug.Fail($"Unknown kind: {type.TypeSignatureKind}");
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break;
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}
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recursionCounter--;
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}
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}
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}
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