67 lines
3.1 KiB
C#
67 lines
3.1 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 dnSpy.Contracts.Debugger.Evaluation;
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namespace dnSpy.Contracts.Debugger.DotNet.Evaluation.Formatters {
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#pragma warning disable CS1591 // Missing XML comment for publicly visible type or member
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// The formatters need to evaluate expressions from DebuggerDisplayAttributes but they can't do it
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// without some help. It's .NET specific and I don't want to add a new public API on ExpressionEvaluator
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// so this 'internal' API is used. The language formatters are exported and don't have access to the IL
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// interpreter used by the .NET language code in dnSpy.Debugger.DotNet. They can get access to this
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// interface by using the extension method below.
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public interface IDebuggerDisplayAttributeEvaluator {
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DbgDotNetEvalResult Evaluate(DbgEvaluationInfo evalInfo, DbgDotNetValue obj, string expression, DbgEvaluationOptions options, object? state);
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}
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public static class IDebuggerDisplayAttributeEvaluatorUtils {
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public static void Initialize(DbgEvaluationContext context, IDebuggerDisplayAttributeEvaluator evaluator) =>
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context.GetOrCreateData(() => evaluator);
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public static IDebuggerDisplayAttributeEvaluator GetDebuggerDisplayAttributeEvaluator(this DbgEvaluationContext context) =>
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context.GetData<IDebuggerDisplayAttributeEvaluator>();
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}
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public readonly struct DbgDotNetEvalResult {
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public DbgDotNetValue? Value { get; }
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public ReadOnlyCollection<string> FormatSpecifiers { get; }
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public DbgEvaluationResultFlags Flags { get; }
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public bool IsThrownException => (Flags & DbgEvaluationResultFlags.ThrownException) != 0;
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public string? Error { get; }
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static readonly ReadOnlyCollection<string> emptyFormatSpecifiers = new ReadOnlyCollection<string>(Array.Empty<string>());
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public DbgDotNetEvalResult(string error, ReadOnlyCollection<string>? formatSpecifiers = null, DbgEvaluationResultFlags flags = 0) {
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Value = null;
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FormatSpecifiers = formatSpecifiers ?? emptyFormatSpecifiers;
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Flags = flags;
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Error = error ?? throw new ArgumentNullException(nameof(error));
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}
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public DbgDotNetEvalResult(DbgDotNetValue value, ReadOnlyCollection<string>? formatSpecifiers, DbgEvaluationResultFlags flags) {
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Value = value ?? throw new ArgumentNullException(nameof(value));
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FormatSpecifiers = formatSpecifiers ?? emptyFormatSpecifiers;
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Flags = flags;
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Error = null;
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}
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}
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#pragma warning restore CS1591 // Missing XML comment for publicly visible type or member
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}
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