/// <summary>
/// Construct equality expressions for source according to list of properties.
/// </summary>
/// <exception cref="ArgumentNullException">
/// When parameterExp or source or properties is null.
/// </exception>
/// <typeparam name="TSource">Type of source.</typeparam>
/// <param name="parameterExp">Parameter expression.</param>
/// <param name="source">Source to construct expression on.</param>
/// <param name="properties">List of properties.</param>
/// <returns>List of equality expressions.</returns>
public static IEnumerable <Expression> ConstructEqualityExpressions <TSource>(
this ParameterExpression parameterExp,
TSource source,
IEnumerable <PropertyInfo> properties)
where TSource : class
{
if (parameterExp == null)
{
throw new ArgumentNullException("parameterExp");
}
if (source == null)
{
throw new ArgumentNullException("source");
}
if (properties == null)
{
throw new ArgumentNullException("properties");
}
foreach (PropertyInfo property in properties)
{
yield return(parameterExp.ConstructEqualityExpression(
source,
property));
}
}