/// <summary>
/// Instantiates an expression to expression slim converter with a given typespace and slim expression factory.
/// </summary>
/// <param name="typeSpace">The type space.</param>
/// <param name="factory">The slim expression factory.</param>
public ExpressionToExpressionSlimConverter(TypeSpace typeSpace, IExpressionSlimFactory factory)
{
TypeSpace = typeSpace ?? throw new ArgumentNullException(nameof(typeSpace));
_factory = factory ?? throw new ArgumentNullException(nameof(factory));
_parameters = new Dictionary <ParameterExpression, ParameterExpressionSlim>();
_labels = new Dictionary <LabelTarget, LabelTargetSlim>();
}
/// <summary>
/// Converts the specified expression to a lightweight representation using the specified expression factory.
/// </summary>
/// <param name="expression">Expression to convert.</param>
/// <param name="factory">The expression factory to use.</param>
/// <returns>Lightweight representation of the specified expression.</returns>
public static ExpressionSlim ToExpressionSlim(this Expression expression, IExpressionSlimFactory factory)
{
if (expression == null)
{
throw new ArgumentNullException(nameof(expression));
}
if (factory == null)
{
throw new ArgumentNullException(nameof(factory));
}
return(new ExpressionToExpressionSlimConverter(new TypeSpace(), factory).Visit(expression));
}
