Struct MergeLayersUse 

pub struct MergeLayersUse { /* private fields */ }

The value is one layer of an ordered Sprig merge: a key of an earlier layer shadows the same key of every later layer at the rendered sink, so a later layer’s member reaches the sink only where every earlier layer lacks that member.

Implementations

impl MergeLayersUse

pub fn new( layers: Vec<MergeLayer>, position: usize, via_binding: bool, ) -> Option<Self>

Creates a layered use when position selects an entry in layers.

pub fn layers(&self) -> &[MergeLayer]

Returns every layer in precedence order.

pub fn position(&self) -> usize

Returns this use’s checked index in Self::layers.

pub fn own_path_is(&self, path: &ValuesPath) -> bool

Reports whether the own layer has path.

pub fn shadowed_by(&self) -> impl ExactSizeIterator<Item = &MergeLayer>

Returns the higher-precedence layers whose keys shadow this layer’s.

pub fn own_transform(&self) -> MergeLayerTransform

Returns the transform applied to this use’s layer.

pub fn has_transformed_layer(&self) -> bool

Reports whether any layer is structurally transformed.

pub fn via_binding(&self) -> bool

Reports whether these facts crossed a local binding boundary.

pub fn into_via_binding(self) -> Self

Marks these layer facts as crossing a local binding boundary.

Trait Implementations

impl Clone for MergeLayersUse

fn clone(&self) -> MergeLayersUse

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MergeLayersUse

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for MergeLayersUse

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for MergeLayersUse

impl Hash for MergeLayersUse

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for MergeLayersUse

fn cmp(&self, other: &MergeLayersUse) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

🔬This is a nightly-only experimental API. (clamp_to)

Restrict a value to a certain range.

impl PartialEq for MergeLayersUse

fn eq(&self, other: &MergeLayersUse) -> bool

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for MergeLayersUse

fn partial_cmp(&self, other: &MergeLayersUse) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize for MergeLayersUse

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for MergeLayersUse