/// <summary>
/// From the serializable.
/// </summary>
/// <param name="lambdaExpressionRepresentation">The lambda expression.</param>
/// <returns>
/// Converted expression.
/// </returns>
public static LambdaExpression FromRepresentation(
this LambdaExpressionRepresentation lambdaExpressionRepresentation)
{
if (lambdaExpressionRepresentation == null)
{
throw new ArgumentNullException(nameof(lambdaExpressionRepresentation));
}
var type = lambdaExpressionRepresentation.Type.ResolveFromLoadedTypes();
var body = lambdaExpressionRepresentation.Body.FromRepresentation();
var parameters = lambdaExpressionRepresentation.Parameters.FromRepresentation().ToList();
var allParametersFromBody = body.VisitAllNodes().Where(_ => _ is ParameterExpression).Cast <ParameterExpression>().ToList();
var matchingParametersFromBody = new List <ParameterExpression>();
foreach (var parameter in parameters)
{
var parameterFromBody = allParametersFromBody.SingleOrDefault(allParameter =>
parameter.Name == allParameter.Name && parameter.Type == allParameter.Type);
if (parameterFromBody != null)
{
matchingParametersFromBody.Add(parameterFromBody);
}
}
var result = matchingParametersFromBody.Any()
? Expression.Lambda(type, body, matchingParametersFromBody)
: Expression.Lambda(type, body);
return(result);
}
/// <summary>
/// Converts to serializable.
/// </summary>
/// <param name="lambdaExpression">The lambda expression.</param>
/// <returns>
/// Serializable expression.
/// </returns>
public static LambdaExpressionRepresentation ToRepresentation(
this LambdaExpression lambdaExpression)
{
if (lambdaExpression == null)
{
throw new ArgumentNullException(nameof(lambdaExpression));
}
var type = lambdaExpression.Type.ToRepresentation();
var body = lambdaExpression.Body.ToRepresentation();
var parameters = lambdaExpression.Parameters.ToRepresentation();
var result = new LambdaExpressionRepresentation(type, body, parameters);
return(result);
}
