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CodeIdentifiers.cs
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/
CodeIdentifiers.cs
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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
using System;
using System.Collections;
using System.IO;
using System.Globalization;
namespace System.Xml.Serialization
{
internal sealed class CaseInsensitiveKeyComparer : CaseInsensitiveComparer, IEqualityComparer
{
public CaseInsensitiveKeyComparer() : base(CultureInfo.CurrentCulture)
{
}
bool IEqualityComparer.Equals(object? x, object? y)
{
return (Compare(x, y) == 0);
}
int IEqualityComparer.GetHashCode(object obj)
{
string? s = obj as string;
if (s == null)
throw new ArgumentException(null, nameof(obj));
return CultureInfo.CurrentCulture.TextInfo.ToUpper(s).GetHashCode();
}
}
///<internalonly/>
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
public class CodeIdentifiers
{
private Hashtable _identifiers;
private Hashtable _reservedIdentifiers;
private ArrayList _list;
private bool _camelCase;
public CodeIdentifiers() : this(true)
{
}
public CodeIdentifiers(bool caseSensitive)
{
if (caseSensitive)
{
_identifiers = new Hashtable();
_reservedIdentifiers = new Hashtable();
}
else
{
IEqualityComparer comparer = new CaseInsensitiveKeyComparer();
_identifiers = new Hashtable(comparer);
_reservedIdentifiers = new Hashtable(comparer);
}
_list = new ArrayList();
}
public void Clear()
{
_identifiers.Clear();
_list.Clear();
}
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
public bool UseCamelCasing
{
get { return _camelCase; }
set { _camelCase = value; }
}
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
public string MakeRightCase(string identifier)
{
if (_camelCase)
return CodeIdentifier.MakeCamel(identifier);
else
return CodeIdentifier.MakePascal(identifier);
}
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
public string MakeUnique(string identifier)
{
if (IsInUse(identifier))
{
for (int i = 1; ; i++)
{
string newIdentifier = identifier + i.ToString(CultureInfo.InvariantCulture);
if (!IsInUse(newIdentifier))
{
identifier = newIdentifier;
break;
}
}
}
// Check that we did not violate the identifier length after appending the suffix.
if (identifier.Length > CodeIdentifier.MaxIdentifierLength)
{
return MakeUnique("Item");
}
return identifier;
}
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
public void AddReserved(string identifier)
{
_reservedIdentifiers.Add(identifier, identifier);
}
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
public void RemoveReserved(string identifier)
{
_reservedIdentifiers.Remove(identifier);
}
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
public string AddUnique(string identifier, object? value)
{
identifier = MakeUnique(identifier);
Add(identifier, value);
return identifier;
}
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
public bool IsInUse(string identifier)
{
return _identifiers.Contains(identifier) || _reservedIdentifiers.Contains(identifier);
}
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
public void Add(string identifier, object? value)
{
_identifiers.Add(identifier, value);
_list.Add(value);
}
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
public void Remove(string identifier)
{
_list.Remove(_identifiers[identifier]);
_identifiers.Remove(identifier);
}
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
public object ToArray(Type type)
{
//Array array = Array.CreateInstance(type, identifiers.Values.Count);
//identifiers.Values.CopyTo(array, 0);
Array array = Array.CreateInstance(type, _list.Count);
_list.CopyTo(array, 0);
return array;
}
internal CodeIdentifiers Clone()
{
CodeIdentifiers newIdentifiers = new CodeIdentifiers();
newIdentifiers._identifiers = (Hashtable)_identifiers.Clone();
newIdentifiers._reservedIdentifiers = (Hashtable)_reservedIdentifiers.Clone();
newIdentifiers._list = (ArrayList)_list.Clone();
newIdentifiers._camelCase = _camelCase;
return newIdentifiers;
}
}
}