Enum Item

pub enum Item<N: Node> {
    Node(N),
    Function,
    Value(Rc<Value>),
}

An Item in a Sequence. Can be a node, function or Value.

Functions are not yet implemented.

Variants

Node(N)

A Node in the source document.

Function

Functions are not yet supported

Value(Rc<Value>)

A scalar value. These are in an Rc since they are frequently shared.

Implementations

impl<N: Node> Item<N>

pub fn to_xml(&self) -> String

Serialize as XML

pub fn to_xml_with_options(&self, od: &OutputDefinition) -> String

Serialize as XML, with options

pub fn to_json(&self) -> String

Serialize as JSON

pub fn to_bool(&self) -> bool

Determine the effective boolean value of the item. See XPath 2.4.3.

pub fn to_int(&self) -> Result<i64, Error>

Gives the integer value of the item, if possible.

pub fn to_double(&self) -> f64

Gives the double value of the item. Returns NaN if the value cannot be converted to a double.

pub fn name(&self) -> Rc<QualifiedName>

Gives the name of the item. Certain types of Nodes have names, such as element-type nodes. If the item does not have a name returns an empty string.

pub fn compare(&self, other: &Item<N>, op: Operator) -> Result<bool, Error>

Compare two items.

pub fn is_node(&self) -> bool

Is this item a node?

pub fn is_element_node(&self) -> bool

Is this item an element-type node?

pub fn add_attribute(&self, a: N) -> Result<(), Error>

Convenience method to set an attribute for a Node-type item. If the item is not an element-type node, then this method has no effect.

pub fn item_type(&self) -> &'static str

Gives the type of the item.

pub fn shallow_copy(&self) -> Result<Self, Error>

Make a shallow copy of an item. That is, the item is duplicated but not it’s content, including attributes.

pub fn deep_copy(&self) -> Result<Self, Error>

Make a deep copy of an item.

Trait Implementations

impl<N: Clone + Node> Clone for Item<N>

fn clone(&self) -> Item<N>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<N: Node> Debug for Item<N>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<N: Node> Display for Item<N>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<N: Node> From<Item<N>> for Sequence<N>

fn from(i: Item<N>) -> Self

Converts to this type from the input type.