Enum NodeData

pub enum NodeData {
    Element(Box<Element>),
    Text(Box<Chars>),
}

Data for a single DOM node.

Memory consumption

SVG files look like this, roughly:

<svg>
  <rect x="10" y="20"/>
  <path d="..."/>
  <text x="10" y="20">Hello</text>
  <!-- etc -->
</svg>

Each element has a bunch of data, including the styles, which is the biggest consumer of memory within the Element struct. But between each element there is a text node; in the example above there are a bunch of text nodes with just whitespace (newlines and spaces), and a single text node with “Hello” in it from the <text> element.

Accessing the node’s contents

Code that traverses the DOM tree needs to find out at runtime what each node stands for. First, use the is_chars or is_element methods from the NodeBorrow trait to see if you can then call borrow_chars, borrow_element, or borrow_element_mut.

Variants

Element(Box<Element>)

Text(Box<Chars>)

Implementations

impl NodeData

pub fn new_element( session: &Session, name: &QualName, attrs: Attributes, ) -> NodeData

pub fn new_chars(initial_text: &str) -> NodeData

Trait Implementations

impl Display for NodeData

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

Formats the value using the given formatter.