private static List <Expression> BuildExpandingOfArrayPart([NotNull] Expression currNodeExpression, [NotNull] Type currNodeType, [NotNull] Expression valueToSetExpression, [NotNull, ItemNotNull] string[] pathParts)
{
var statements = new List <Expression>();
if (currNodeType.IsArray)
{
var itemType = TypeCheckingHelper.GetEnumerableItemType(currNodeType);
var getLenExpression = Expression.Property(Expression.Convert(valueToSetExpression, typeof(ICollection)), "Count");
statements.Add(ExpressionPrimitives.CreateArrayInitStatement(currNodeExpression, itemType, getLenExpression));
var expressionLoopVar = Expression.Variable(typeof(int));
var elementExpression = Expression.ArrayAccess(currNodeExpression, expressionLoopVar);
var elementInitStatement = ExpressionPrimitives.CreateValueInitStatement(elementExpression, itemType);
var setItemStatements = Expression.Block(BuildExtractionOfChildModelSetter(itemType, elementExpression, ExpressionPrimitives.GetIndexAccessExpression(valueToSetExpression, expressionLoopVar), pathParts));
var loopBodyExpression = Expression.Block(elementInitStatement, setItemStatements);
var loopExpression = ExpressionPrimitives.ForFromTo(expressionLoopVar, Expression.Constant(0), getLenExpression, loopBodyExpression);
statements.Add(loopExpression);
return(statements);
}
throw new ObjectPropertyExtractionException("Only array is supported as iterated collection");
}
public static Type ExtractChildObjectTypeFromPath([NotNull] Type modelType, [NotNull] ExcelTemplatePath path)
{
var currType = modelType;
foreach (var part in path.PartsWithIndexers)
{
var childPropertyType = ExtractPropertyInfo(currType, part).PropertyType;
if (TemplateDescriptionHelper.IsCollectionAccessPathPart(part))
{
if (TypeCheckingHelper.IsDictionary(childPropertyType))
{
var(keyType, valueType) = TypeCheckingHelper.GetDictionaryGenericTypeArguments(childPropertyType);
TemplateDescriptionHelper.ParseCollectionIndexerOrThrow(TemplateDescriptionHelper.GetCollectionAccessPathPartIndex(part), keyType);
currType = valueType;
}
else if (TypeCheckingHelper.IsIList(childPropertyType))
{
TemplateDescriptionHelper.ParseCollectionIndexerOrThrow(TemplateDescriptionHelper.GetCollectionAccessPathPartIndex(part), typeof(int));
currType = TypeCheckingHelper.GetEnumerableItemType(childPropertyType);
}
else
{
throw new ObjectPropertyExtractionException($"Not supported collection type {childPropertyType}");
}
}
else if (TemplateDescriptionHelper.IsArrayPathPart(part))
{
if (TypeCheckingHelper.IsIList(childPropertyType))
{
currType = TypeCheckingHelper.GetIListItemType(childPropertyType);
}
else
{
throw new ObjectPropertyExtractionException($"Not supported collection type {childPropertyType}");
}
}
else
{
currType = childPropertyType;
}
}
return(currType);
}