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109 lines
3.6 KiB
C#
109 lines
3.6 KiB
C#
// Copyright (c) 2010-2013 AlphaSierraPapa for the SharpDevelop Team
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy of this
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// software and associated documentation files (the "Software"), to deal in the Software
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// without restriction, including without limitation the rights to use, copy, modify, merge,
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// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
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// to whom the Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all copies or
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// substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
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// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
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// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
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// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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#nullable enable
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using System;
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using System.Collections.Generic;
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using System.Runtime.CompilerServices;
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namespace ICSharpCode.Decompiler.TypeSystem
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{
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/// <remarks>
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/// Should match order in <see cref="CSharp.Syntax.FieldDirection"/>.
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/// </remarks>
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public enum ReferenceKind : byte
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{
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None,
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Out,
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Ref,
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In,
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RefReadOnly,
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}
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public struct LifetimeAnnotation
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{
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/// <summary>
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/// C# 11 scoped annotation: "scoped ref" (ScopedRefAttribute)
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/// </summary>
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public bool ScopedRef {
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#pragma warning disable 618
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get { return RefScoped; }
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set { RefScoped = value; }
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#pragma warning restore 618
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}
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[Obsolete("Use ScopedRef property instead of directly accessing this field")]
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public bool RefScoped;
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[Obsolete("C# 11 preview: \"ref scoped\" no longer supported")]
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public bool ValueScoped;
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}
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public interface IParameter : IVariable
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{
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/// <summary>
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/// Gets the attributes on this parameter.
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/// </summary>
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IEnumerable<IAttribute> GetAttributes();
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/// <summary>
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/// Gets the reference kind of this parameter.
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/// </summary>
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ReferenceKind ReferenceKind { get; }
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/// <summary>
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/// C# 11 scoped annotation.
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/// </summary>
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LifetimeAnnotation Lifetime { get; }
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/// <summary>
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/// Gets whether this parameter is a C# 'params' parameter.
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/// </summary>
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bool IsParams { get; }
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/// <summary>
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/// Gets whether this parameter is optional.
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/// The default value is given by the <see cref="IVariable.GetConstantValue"/> function.
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/// </summary>
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bool IsOptional { get; }
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/// <summary>
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/// Gets whether this parameter has a constant value when presented in method signature.
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/// </summary>
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/// <remarks>
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/// This can only be <c>true</c> if the parameter is optional, and it's true for most
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/// optional parameters. However it is possible to compile a parameter without a default value,
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/// and some parameters handle their default values in an special way.
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///
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/// For example, <see cref="DecimalConstantAttribute"/> does not use normal constants,
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/// so when <see cref="DecompilerSettings.DecimalConstants" /> is <c>false</c>
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/// we expose <c>DecimalConstantAttribute</c> directly instead of a constant value.
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///
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/// On the call sites, though, we can still use the value inferred from the attribute.
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/// </remarks>
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bool HasConstantValueInSignature { get; }
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/// <summary>
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/// Gets the owner of this parameter.
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/// May return null; for example when parameters belong to lambdas or anonymous methods.
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/// </summary>
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IParameterizedMember? Owner { get; }
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}
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}
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