// Copyright (c) 2010-2013 AlphaSierraPapa for the SharpDevelop Team
// 
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// to whom the Software is furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
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namespace ICSharpCode.Decompiler.TypeSystem
{
	/// <summary>
	/// .
	/// </summary>
	public enum TypeKind : byte
	{
		/// <summary>Language-specific type that is not part of NRefactory.TypeSystem itself.</summary>
		Other,

		/// <summary>A <see cref="ITypeDefinition"/> or <see cref="ParameterizedType"/> that is a class.</summary>
		Class,
		/// <summary>A <see cref="ITypeDefinition"/> or <see cref="ParameterizedType"/> that is an interface.</summary>
		Interface,
		/// <summary>A <see cref="ITypeDefinition"/> or <see cref="ParameterizedType"/> that is a struct.</summary>
		Struct,
		/// <summary>A <see cref="ITypeDefinition"/> or <see cref="ParameterizedType"/> that is a delegate.</summary>
		/// <remarks><c>System.Delegate</c> itself is TypeKind.Class</remarks>
		Delegate,
		/// <summary>A <see cref="ITypeDefinition"/> that is an enum.</summary>
		/// <remarks><c>System.Enum</c> itself is TypeKind.Class</remarks>
		Enum,

		/// <summary>The <c>System.Void</c> type.</summary>
		/// <see cref="KnownTypeCode.Void"/>
		Void,

		/// <summary>Type used for invalid expressions and for types whose definition could not be found.</summary>
		/// <see cref="SpecialType.UnknownType"/>
		Unknown,
		/// <summary>The type of the null literal.</summary>
		/// <see cref="SpecialType.NullType"/>
		Null,
		/// <summary>The type of expressions without type (except for null literals, which have <c>TypeKind.Null</c>).</summary>
		/// <see cref="SpecialType.NoType"/>
		None,
		/// <summary>Type representing the C# 'dynamic' type.</summary>
		/// <see cref="SpecialType.Dynamic"/>
		Dynamic,
		/// <summary>Represents missing type arguments in partially parameterized types.</summary>
		/// <see cref="SpecialType.UnboundTypeArgument"/>
		/// <see cref="IType">IType.GetNestedTypes(Predicate{ITypeDefinition}, GetMemberOptions)</see>
		UnboundTypeArgument,

		/// <summary>The type is a type parameter.</summary>
		/// <see cref="ITypeParameter"/>
		TypeParameter,

		/// <summary>An array type</summary>
		/// <see cref="ArrayType"/>
		Array,
		/// <summary>A pointer type</summary>
		/// <see cref="PointerType"/>
		Pointer,
		/// <summary>A managed reference type</summary>
		/// <see cref="ByReferenceType"/>
		ByReference,

		/// <summary>Intersection of several types</summary>
		/// <see cref="IntersectionType"/>
		Intersection,
		/// <see cref="SpecialType.ArgList"/>
		ArgList,
		/// <summary>A C# 7 tuple type.
		/// E.g. <code>(string, int)</code>
		/// Note: <code>System.ValueTuple&lt;string, int&gt;</code> is not considered a tuple type.
		/// </summary>
		/// <see cref="TupleType"/>
		Tuple,
		/// <summary>
		/// Modified type, with optional modifier.
		/// </summary>
		ModOpt,
		/// <summary>
		/// Modified type, with required modifier.
		/// </summary>
		ModReq,

		/// <summary>
		/// C# 9 <c>nint</c>
		/// </summary>
		NInt,
		/// <summary>
		/// C# 9 <c>nuint</c>
		/// </summary>
		NUInt,

		/// <summary>
		/// C# 9 <c>delegate*</c>
		/// </summary>
		FunctionPointer,
	}
}
