// 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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// DEALINGS IN THE SOFTWARE.

using System;

namespace ICSharpCode.Decompiler.CSharp.Resolver
{
	[Flags]
	public enum OverloadResolutionErrors
	{
		None = 0,
		/// <summary>
		/// Too many positional arguments (some could not be mapped to any parameter).
		/// </summary>
		TooManyPositionalArguments = 0x0001,
		/// <summary>
		/// A named argument could not be mapped to any parameter
		/// </summary>
		NoParameterFoundForNamedArgument = 0x0002,
		/// <summary>
		/// Type inference failed for a generic method.
		/// </summary>
		TypeInferenceFailed = 0x0004,
		/// <summary>
		/// Type arguments were explicitly specified, but did not match the number of type parameters.
		/// </summary>
		WrongNumberOfTypeArguments = 0x0008,
		/// <summary>
		/// After substituting type parameters with the inferred types; a constructed type within the formal parameters
		/// does not satisfy its constraint.
		/// </summary>
		ConstructedTypeDoesNotSatisfyConstraint = 0x0010,
		/// <summary>
		/// No argument was mapped to a non-optional parameter
		/// </summary>
		MissingArgumentForRequiredParameter = 0x0020,
		/// <summary>
		/// Several arguments were mapped to a single (non-params-array) parameter
		/// </summary>
		MultipleArgumentsForSingleParameter = 0x0040,
		/// <summary>
		/// 'ref'/'out' passing mode doesn't match for at least 1 parameter
		/// </summary>
		ParameterPassingModeMismatch = 0x0080,
		/// <summary>
		/// Argument type cannot be converted to parameter type
		/// </summary>
		ArgumentTypeMismatch = 0x0100,
		/// <summary>
		/// There is no unique best overload.
		/// This error does not apply to any single candidate, but only to the overall result of overload resolution.
		/// </summary>
		/// <remarks>
		/// This error does not prevent a candidate from being applicable.
		/// </remarks>
		AmbiguousMatch = 0x0200,
		/// <summary>
		/// The member is not accessible.
		/// </summary>
		/// <remarks>
		/// This error is generated by member lookup; not by overload resolution.
		/// </remarks>
		Inaccessible = 0x0400,
		/// <summary>
		/// A generic method 
		/// </summary>
		/// <remarks>
		/// This error does not prevent a candidate from being applicable.
		/// </remarks>
		MethodConstraintsNotSatisfied = 0x0800,
		/// <summary>
		/// Using 'out var' instead of 'out T' would result in loss of type information.
		/// </summary>
		OutVarTypeMismatch = 0x1000,
	}
}