using System;

namespace CodeMap.ReferenceData

{

/// <summary>Represents an array type reference.</summary>

public sealed class ArrayTypeReference : BaseTypeReference

{

internal ArrayTypeReference()

{

}

/// <summary>The array rank.</summary>

public int Rank { get; internal set; }

/// <summary>The array item type.</summary>

public BaseTypeReference ItemType { get; internal set; }

/// <summary>The declaring assembly.</summary>

public override AssemblyReference Assembly

=> ItemType.Assembly;

/// <summary>Accepts the provided <paramref name="visitor"/> for selecting a concrete instance method.</summary>

/// <param name="visitor">The <see cref="MemberReferenceVisitor"/> interpreting the reference data.</param>

/// <exception cref="NullReferenceException">Thrown when <paramref name="visitor"/> is <c>null</c>.</exception>

public override void Accept(MemberReferenceVisitor visitor)

=> visitor.VisitArray(this);

/// <summary>Determines whether the current <see cref="ArrayTypeReference"/> is equal to the provided <paramref name="type"/>.</summary>

/// <param name="type">The <see cref="Type"/> to compare to.</param>

/// <returns>Returns <c>true</c> if the current <see cref="ArrayTypeReference"/> references the provided <paramref name="type"/>; <c>false</c> otherwise.</returns>

public override bool Equals(Type type)

=> Equals(type, null, null);

internal override bool Equals(Type type, GenericMethodParameterReference originator, Type originatorMatch)

=> type is object && type.IsArray && Rank == type.GetArrayRank() && ItemType.Equals(type.GetElementType(), originator, originatorMatch);

}

}