102 lines
3.4 KiB
C#
102 lines
3.4 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.Diagnostics;
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using dnlib.DotNet;
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using dnlib.DotNet.Emit;
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namespace dnSpy.Contracts.Decompiler {
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/// <summary>
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/// A local present in decompiled code
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/// </summary>
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public sealed class SourceLocal : ISourceVariable {
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/// <summary>
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/// The local or null
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/// </summary>
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public Local? Local { get; }
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IVariable? ISourceVariable.Variable => Local;
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bool ISourceVariable.IsLocal => true;
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bool ISourceVariable.IsParameter => false;
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/// <summary>
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/// Gets the name of the local the decompiler used. It could be different from the real name if the decompiler renamed it.
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/// </summary>
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public string Name { get; }
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/// <summary>
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/// Gets the type of the local
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/// </summary>
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public TypeSig Type { get; }
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/// <summary>
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/// Gets the hoisted field or null if it's not a hoisted local
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/// </summary>
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public FieldDef? HoistedField { get; }
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/// <summary>
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/// Gets the flags
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/// </summary>
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public SourceVariableFlags Flags { get; }
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/// <summary>
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/// true if this is a decompiler generated local
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/// </summary>
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public bool IsDecompilerGenerated => (Flags & SourceVariableFlags.DecompilerGenerated) != 0;
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/// <summary>
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/// Constructor
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/// </summary>
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/// <param name="local">Local or null</param>
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/// <param name="name">Name used by the decompiler</param>
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/// <param name="type">Type of local</param>
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/// <param name="flags">Flags</param>
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public SourceLocal(Local? local, string name, TypeSig type, SourceVariableFlags flags) {
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Debug.Assert((flags & SourceVariableFlags.DecompilerGenerated) == 0);
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Local = local;
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Name = name ?? throw new ArgumentNullException(nameof(name));
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Type = type ?? throw new ArgumentNullException(nameof(type));
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// It's decompiler generated if Local is null && HoistedField is null
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if (local is null)
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flags |= SourceVariableFlags.DecompilerGenerated;
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else
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flags &= ~SourceVariableFlags.DecompilerGenerated;
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Flags = flags;
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}
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/// <summary>
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/// Constructor
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/// </summary>
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/// <param name="local">Local or null</param>
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/// <param name="name">Name used by the decompiler</param>
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/// <param name="hoistedField">Hoisted field</param>
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/// <param name="flags">Flags</param>
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public SourceLocal(Local? local, string name, FieldDef hoistedField, SourceVariableFlags flags) {
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Debug.Assert((flags & SourceVariableFlags.DecompilerGenerated) == 0);
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Local = local;
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Name = name ?? throw new ArgumentNullException(nameof(name));
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HoistedField = hoistedField ?? throw new ArgumentNullException(nameof(hoistedField));
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Type = hoistedField.FieldType;
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// It's decompiler generated if Local is null && HoistedField is null
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Flags = flags & ~SourceVariableFlags.DecompilerGenerated;
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}
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}
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}
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