Struct ReflectionIndexerNode 

pub struct ReflectionIndexerNode { /* private fields */ }

A node that reads a value through the indexer the source’s type declared in its binding metadata or its markup metadata ([2], [key], [1,2]), following the change notifications of the source.

The arguments are the text of the binding path; they are converted to the declared types of the index parameters each time the source changes.

Implementations

impl ReflectionIndexerNode

pub fn new(arguments: Vec<String>) -> Rc<Self>

pub fn arguments(&self) -> &[String]

Trait Implementations

impl CollectionNode for ReflectionIndexerNode

fn collection_base(&self) -> &CollectionNodeBase

fn should_update(&self, _source: &BoxedValue, property_name: &str) -> bool

Whether a property change notification of the source for property_name affects the value of the node.

fn try_get_first_argument_as_int(&self) -> Option<i32>

The first argument of the node as an integer, if it is one.

fn update_value(&self, source: &BoxedValue) -> Result<(), BindingError>

Reads the value from the source. An error is what the getter of a managed indexer throws.

impl Drop for ReflectionIndexerNode

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 ReflectionIndexerNode

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

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_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.

impl ISettableNode for ReflectionIndexerNode

fn value_type(&self) -> Option<ValueType>

The type of the value accepted by the node, or None if the node is not currently settable.

fn write_value_to_source( &self, value: Option<&BoxedValue>, _nodes: &[Rc<dyn ExpressionNode>], ) -> Result<bool, BindingError>

Tries to write the specified value to the source.