120 lines
4.8 KiB
C#
120 lines
4.8 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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using System.Collections.ObjectModel;
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using System.Linq;
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using dnSpy.Contracts.Debugger;
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using dnSpy.Contracts.Debugger.DotNet.Evaluation;
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using dnSpy.Contracts.Debugger.DotNet.Evaluation.ValueNodes;
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using dnSpy.Contracts.Debugger.DotNet.Text;
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using dnSpy.Contracts.Debugger.Evaluation;
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using dnSpy.Contracts.Debugger.Text;
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using dnSpy.Debugger.DotNet.Metadata;
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namespace dnSpy.Roslyn.Debugger.ValueNodes {
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sealed class TupleValueNodeProvider : DbgDotNetValueNodeProvider {
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public override DbgDotNetText Name => tupleName;
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public override string Expression => nodeInfo.Expression;
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public override string ImageName => PredefinedDbgValueNodeImageNames.Structure;
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public override bool? HasChildren => tupleFields.Length > 0;
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static readonly DbgDotNetText tupleName = new DbgDotNetText(new DbgDotNetTextPart(DbgTextColor.Punctuation, "()"));
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readonly bool addParens;
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readonly DmdType slotType;
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readonly DbgDotNetValueNodeInfo nodeInfo;
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readonly TupleField[] tupleFields;
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public TupleValueNodeProvider(bool addParens, DmdType slotType, DbgDotNetValueNodeInfo nodeInfo, TupleField[] tupleFields) {
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this.addParens = addParens;
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this.slotType = slotType;
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this.nodeInfo = nodeInfo;
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this.tupleFields = tupleFields;
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}
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public override ulong GetChildCount(DbgEvaluationInfo evalInfo) => (uint)tupleFields.Length;
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public override DbgDotNetValueNode[] GetChildren(LanguageValueNodeFactory valueNodeFactory, DbgEvaluationInfo evalInfo, ulong index, int count, DbgValueNodeEvaluationOptions options, ReadOnlyCollection<string>? formatSpecifiers) {
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var runtime = evalInfo.Runtime.GetDotNetRuntime();
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var res = count == 0 ? Array.Empty<DbgDotNetValueNode>() : new DbgDotNetValueNode[count];
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var valueResults = new List<DbgDotNetValueResult>();
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DbgDotNetValueResult valueResult = default;
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try {
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for (int i = 0; i < res.Length; i++) {
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evalInfo.CancellationToken.ThrowIfCancellationRequested();
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ref readonly var info = ref tupleFields[(int)index + i];
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var castType = NeedCast(slotType, nodeInfo.Value.Type) ? nodeInfo.Value.Type : null;
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var expression = valueNodeFactory.GetFieldExpression(nodeInfo.Expression, info.DefaultName, castType, addParens);
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const string imageName = PredefinedDbgValueNodeImageNames.FieldPublic;
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const bool isReadOnly = false;
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var expectedType = info.Fields[info.Fields.Length - 1].FieldType;
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var objValue = nodeInfo.Value;
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string? errorMessage = null;
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bool valueIsException = false;
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for (int j = 0; j < info.Fields.Length; j++) {
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evalInfo.CancellationToken.ThrowIfCancellationRequested();
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valueResult = runtime.LoadField(evalInfo, objValue, info.Fields[j]);
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objValue = valueResult.Value!;
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if (valueResult.HasError) {
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valueResults.Add(valueResult);
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errorMessage = valueResult.ErrorMessage;
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valueResult = default;
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break;
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}
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if (valueResult.ValueIsException) {
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valueIsException = true;
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valueResult = default;
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break;
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}
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if (j + 1 != info.Fields.Length)
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valueResults.Add(valueResult);
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valueResult = default;
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}
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var name = new DbgDotNetText(new DbgDotNetTextPart(DbgTextColor.InstanceField, info.DefaultName));
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DbgDotNetValueNode newNode;
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if (errorMessage is not null)
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newNode = valueNodeFactory.CreateError(evalInfo, name, errorMessage, expression, false);
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else if (valueIsException)
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newNode = valueNodeFactory.Create(evalInfo, name, objValue, formatSpecifiers, options, expression, PredefinedDbgValueNodeImageNames.Error, true, false, expectedType, false);
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else
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newNode = valueNodeFactory.Create(evalInfo, name, objValue, formatSpecifiers, options, expression, imageName, isReadOnly, false, expectedType, false);
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foreach (var vr in valueResults)
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vr.Value?.Dispose();
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valueResults.Clear();
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res[i] = newNode;
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}
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}
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catch {
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evalInfo.Runtime.Process.DbgManager.Close(res.Where(a => a is not null));
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foreach (var vr in valueResults)
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vr.Value?.Dispose();
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valueResult.Value?.Dispose();
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throw;
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}
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return res;
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}
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public override void Dispose() { }
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}
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}
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