public static IHashingExpression <T> Hash <T, K>(this IHashingDeclaration <T> parameters, Expression <Func <T, K> > selector)
{
if (parameters == null)
{
throw new NullReferenceException();
}
if (selector == null)
{
throw new ArgumentNullException("selector");
}
return(new HashingExpressionImpl <T>(HashCore(parameters.Parameters, parameters.Composer, parameters.Seed, selector, DefaultHashing <K>()), parameters.Composer));
}
public static IHashingExpression <T> NullableHash <T, K>(this IHashingDeclaration <T> parameters, Expression <Func <T, K?> > selector, Expression <Func <K, int> > hashing)
where K : struct
{
if (parameters == null)
{
throw new NullReferenceException();
}
if (selector == null)
{
throw new ArgumentNullException("selector");
}
if (hashing == null)
{
throw new ArgumentNullException("hashing");
}
return(new HashingExpressionImpl <T>(HashCore(parameters.Parameters, parameters.Composer, parameters.Seed, selector, NullableHashing <K>(hashing)), parameters.Composer));
}
public static IHashingExpression <T> ObjectHash <T, K>(this IHashingDeclaration <T> parameters, Expression <Func <T, K> > selector, IEqualityComparer <K> equalityComparer)
where K : class
{
if (parameters == null)
{
throw new NullReferenceException();
}
if (selector == null)
{
throw new ArgumentNullException("selector");
}
if (equalityComparer == null)
{
throw new ArgumentNullException("equalityComparer");
}
return(new HashingExpressionImpl <T>(HashCore(parameters.Parameters, parameters.Composer, parameters.Seed, selector, ObjectHashing <K>(ComparerHashing <K>(equalityComparer))), parameters.Composer));
}
