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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.
// See the LICENSE file in the project root for more information.
using System;
using System.Diagnostics;
namespace Microsoft.CodeAnalysis.CSharp
{
using static BinaryOperatorKind;
internal static partial class ValueSetFactory
{
private class CharTC : INumericTC<char>
{
public static readonly CharTC Instance = new CharTC();
char INumericTC<char>.MinValue => char.MinValue;
char INumericTC<char>.MaxValue => char.MaxValue;
char INumericTC<char>.Zero => (char)0;
bool INumericTC<char>.Related(BinaryOperatorKind relation, char left, char right)
{
switch (relation)
{
case Equal:
return left == right;
case GreaterThanOrEqual:
return left >= right;
case GreaterThan:
return left > right;
case LessThanOrEqual:
return left <= right;
case LessThan:
return left < right;
default:
throw new ArgumentException("relation");
}
}
char INumericTC<char>.Next(char value)
{
Debug.Assert(value != char.MaxValue);
return (char)(value + 1);
}
char INumericTC<char>.FromConstantValue(ConstantValue constantValue) => constantValue.IsBad ? (char)0 : constantValue.CharValue;
string INumericTC<char>.ToString(char c)
{
return ObjectDisplay.FormatPrimitive(c, ObjectDisplayOptions.EscapeNonPrintableCharacters | ObjectDisplayOptions.UseQuotes);
}
char INumericTC<char>.Prev(char value)
{
Debug.Assert(value != char.MinValue);
return (char)(value - 1);
}
char INumericTC<char>.Random(Random random)
{
return (char)random.Next((int)char.MinValue, 1 + (int)char.MaxValue);
}
ConstantValue INumericTC<char>.ToConstantValue(char value) => ConstantValue.Create(value);
}
}
}
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