Struct StreamNode 

pub struct StreamNode { /* private fields */ }

A node that produces the values of an observable source (^): through a fixed stream plugin (compiled binding paths) or, when none is given, the first registered plugin that matches the source.

Implementations

impl StreamNode

pub fn new(plugin: Rc<dyn IStreamPlugin>) -> Rc<Self>

pub fn new_dynamic() -> Rc<Self>

Creates a node that selects the plugin from the registered plugins.

Trait Implementations

impl Drop for StreamNode

fn drop(&mut self)

Executes the destructor for this type.

fn pin_drop(self: Pin<&mut Self>)

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

Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned.

impl ExpressionNode for StreamNode

fn state(&self) -> &NodeState

fn build_string(&self, builder: &mut String)

Appends a string representation of the node to builder.

fn on_source_changed( &self, source: Option<&BoxedValue>, _data_validation_error: Option<&BindingError>, )

Subscribes to the new source and updates the current value.

fn unsubscribe(&self, _old_source: &BoxedValue)

Unsubscribes from the previous source.

fn build_string_with_nodes( &self, builder: &mut String, nodes: &[Rc<dyn ExpressionNode>], )

Builds a string representation of the binding path up to this node.

fn as_settable(&self) -> Option<&dyn ISettableNode>

fn as_property_accessor_node(&self) -> Option<&dyn IPropertyAccessorNode>

fn as_source_node(&self) -> Option<&dyn SourceNode>

fn is_data_context_node(&self) -> bool

Whether the node reads a data context.