fn list()

in crates/iceberg/src/spec/schema/prune_columns.rs [171:194]

• 24 lines of code
• 6 McCabe index (conditional complexity)

    fn list(&mut self, list: &ListType, value: Option<Type>) -> Result<Option<Type>> {
        if self.selected.contains(&list.element_field.id) {
            if self.select_full_types {
                Ok(Some(Type::List(list.clone())))
            } else if list.element_field.field_type.is_struct() {
                let projected_struct = PruneColumn::project_selected_struct(value).unwrap();
                return Ok(Some(Type::List(PruneColumn::project_list(
                    list,
                    Type::Struct(projected_struct),
                )?)));
            } else if list.element_field.field_type.is_primitive() {
                return Ok(Some(Type::List(list.clone())));
            } else {
                return Err(Error::new(
                        ErrorKind::DataInvalid,
                        format!("Cannot explicitly project List or Map types, List element {} of type {} was selected", list.element_field.id, list.element_field.field_type),
                    ));
            }
        } else if let Some(result) = value {
            Ok(Some(Type::List(PruneColumn::project_list(list, result)?)))
        } else {
            Ok(None)
        }
    }