Enum ftml::tree::Elements

pub enum Elements<'t> {
    Multiple(Vec<Element<'t>>),
    Single(Element<'t>),
    None,
}

Wrapper for the result of producing element(s).

This has an enum instead of a simple Vec<Element> since the most common output is a single element, and it makes little sense to heap allocate for every single return if we can easily avoid it.

It also contains a field marking whether all of the contents are paragraph-safe or not, used by ParagraphStack.

Variants

Multiple(Vec<Element<'t>>)

Single(Element<'t>)

None

Implementations

impl Elements<'_>

pub fn is_empty(&self) -> bool

pub fn len(&self) -> usize

pub fn paragraph_safe(&self) -> bool

Trait Implementations

impl<'t> AsRef<[Element<'t>]> for Elements<'t>

fn as_ref(&self) -> &[Element<'t>]

Converts this type into a shared reference of the (usually inferred) input type.

impl<'t> Clone for Elements<'t>

fn clone(&self) -> Elements<'t>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'t> Debug for Elements<'t>

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

Formats the value using the given formatter.

impl<'de, 't> Deserialize<'de> for Elements<'t>

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<'t> From<Element<'t>> for Elements<'t>

fn from(element: Element<'t>) -> Elements<'t>

Converts to this type from the input type.

impl<'t> From<Option<Element<'t>>> for Elements<'t>

fn from(element: Option<Element<'t>>) -> Elements<'t>

Converts to this type from the input type.

impl<'t> From<Vec<Element<'t>, Global>> for Elements<'t>

fn from(elements: Vec<Element<'t>>) -> Elements<'t>

Converts to this type from the input type.

impl<'e, 't> IntoIterator for &'e Elements<'t>

type Item = &'e Element<'t>

The type of the elements being iterated over.

type IntoIter = BorrowedElementsIterator<'e, 't>

Which kind of iterator are we turning this into?

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value.

impl<'t> IntoIterator for Elements<'t>

type Item = Element<'t>

The type of the elements being iterated over.

type IntoIter = OwnedElementsIterator<'t>

Which kind of iterator are we turning this into?

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value.

impl<'t> PartialEq<Elements<'t>> for Elements<'t>

fn eq(&self, other: &Elements<'t>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<'t> Serialize for Elements<'t>

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>where __S: Serializer,

Serialize this value into the given Serde serializer.

impl<'t> Eq for Elements<'t>

impl<'t> StructuralEq for Elements<'t>

impl<'t> StructuralPartialEq for Elements<'t>