80 lines
2.7 KiB
C#
80 lines
2.7 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;
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using System.Collections.Generic;
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using System.Linq;
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using dnlib.DotNet;
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using dnSpy.Contracts.Decompiler;
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using dnSpy.Contracts.Documents.Tabs.DocViewer;
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using dnSpy.Contracts.Menus;
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using dnSpy.Contracts.Text;
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namespace dnSpy.AsmEditor.MethodBody {
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static class BodyCommandUtils {
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public static IList<MethodSourceStatement>? GetStatements(IMenuItemContext? context, FindByTextPositionOptions options) {
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if (context is null)
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return null;
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if (context.CreatorObject.Guid != new Guid(MenuConstants.GUIDOBJ_DOCUMENTVIEWERCONTROL_GUID))
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return null;
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var documentViewer = context.Find<IDocumentViewer>();
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if (documentViewer is null)
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return null;
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var pos = context.Find<TextEditorPosition>();
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if (pos is null)
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return null;
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return GetStatements(documentViewer, pos.Position, options);
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}
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public static IList<MethodSourceStatement>? GetStatements(IDocumentViewer? documentViewer, int textPosition, FindByTextPositionOptions options) {
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if (documentViewer is null)
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return null;
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var methodDebugService = documentViewer.GetMethodDebugService();
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var methodStatements = methodDebugService.FindByTextPosition(textPosition, options | FindByTextPositionOptions.SameMethod);
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return methodStatements.Count == 0 ? null : methodStatements;
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}
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public static uint[]? GetInstructionOffsets(MethodDef? method, IList<MethodSourceStatement> list) {
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if (method is null)
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return null;
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var body = method.Body;
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if (body is null)
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return null;
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var foundInstrs = new HashSet<uint>();
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// The instructions' offset field is assumed to be valid
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var instrs = body.Instructions.Select(a => a.Offset).ToArray();
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foreach (var ilSpan in list.Select(a => a.Statement.ILSpan)) {
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int index = Array.BinarySearch(instrs, ilSpan.Start);
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if (index < 0)
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continue;
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for (int i = index; i < instrs.Length; i++) {
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uint instrOffset = instrs[i];
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if (instrOffset >= ilSpan.End)
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break;
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foundInstrs.Add(instrOffset);
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}
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}
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return foundInstrs.ToArray();
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}
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}
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}
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