module-project-validator/Editor/Validators/Attributes/AttributeValidatorRange.cs

using UnityEngine;

namespace Module.ProjectValidator.Editor
{
    internal sealed class AttributeValidatorRange : IAttributeValidator<RangeAttribute>
    {
        public ValidatorResult Validate(RangeAttribute attribute, object value)
        {
            if (value is int iValue)
            {
                if (iValue < attribute.min || iValue > attribute.max)
                    return ValidatorResult.Create(EValidatorSeverity.Error, $"Value {iValue} is not in the range [{attribute.min};{attribute.max}]");
            }
            else if (value is float fValue)
            {
                if (fValue < attribute.min || fValue > attribute.max)
                    return ValidatorResult.Create(EValidatorSeverity.Error, $"Value {fValue} is not in the range [{attribute.min};{attribute.max}]");
            }
            
            return ValidatorResult.Valid;
        }
    }
}