Struct VecList 

pub struct VecList { /* private fields */ }

Baseline eager list backend backed by a shared slice of values.

Examples

use sim_kernel::VecList;

let empty = VecList::from_vec(Vec::new());
assert!(empty.as_slice().is_empty());

Implementations

impl VecList

pub fn from_vec(values: Vec<Value>) -> Self

Builds a list from an owned vector of values.

pub fn from_arc(values: Arc<[Value]>) -> Self

Builds a list from an already-shared slice of values.

pub fn as_slice(&self) -> &[Value]

Borrows the backing slice of values.

Trait Implementations

impl Clone for VecList

fn clone(&self) -> VecList

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl ListValue for VecList

fn is_empty(&self, _cx: &mut Cx) -> Result<bool>

Whether the list has no elements.

fn car(&self, _cx: &mut Cx) -> Result<Option<Value>>

The first element, or Ok(None) when empty.

fn cdr(&self, cx: &mut Cx) -> Result<Option<Value>>

The tail list after the first element, or Ok(None) when empty.

fn len(&self, _cx: &mut Cx) -> Result<LengthResult>

The length, finite or LengthResult::Unknown for endless lists.

fn len_cmp(&self, _cx: &mut Cx, n: usize) -> Result<Ordering>

Compares the spine length against n without fully forcing the list.

fn get(&self, _cx: &mut Cx, index: usize) -> Result<Option<Value>>

The element at index, or Ok(None) when out of range.

fn for_each( &self, _cx: &mut Cx, limit: Option<usize>, visit: &mut dyn FnMut(&Value), ) -> Result<()>

Visits up to limit elements in order, walking the list spine.

fn to_vec(&self, _cx: &mut Cx, limit: Option<usize>) -> Result<Vec<Value>>

Collects up to limit elements into a vector.

fn cdr_self(&self, _cx: &mut Cx) -> Result<Option<Value>>

The value to start spine walks from; the receiver itself by default.

fn as_self_value(&self) -> Option<Value>

The receiver re-wrapped as a Value, when it can produce one.

impl Object for VecList

fn display(&self, _cx: &mut Cx) -> Result<String>

Render the object as a human-readable display string.

fn as_any(&self) -> &dyn Any

Expose the object for Rust downcasting.

fn header(&self) -> &ObjectHeader

Identity and trust header for the object; defaults to the shared anonymous header.

fn op(&self, _key: &OpKey) -> Option<&dyn Op>

Resolve the operation registered under key, if any.

fn claims( &self, _cx: &mut Cx, _pattern: &ClaimPattern, _sink: &mut dyn ClaimSink, ) -> Result<()>

Emit the object’s claims matching pattern into sink.

fn snapshot(&self, _cx: &mut Cx) -> Result<Option<Datum>>

Optional content-addressable snapshot of the object’s state.

impl ObjectCompat for VecList

fn class(&self, cx: &mut Cx) -> Result<ClassRef>

Class object this value belongs to; defaults to nil.

fn as_expr(&self, cx: &mut Cx) -> Result<Expr>

Expression form of the object; defaults to an opaque extension node.

fn truth(&self, _cx: &mut Cx) -> Result<bool>

Truthiness of the object; defaults to true.

fn as_list(&self) -> Option<&dyn ListValue>

List view, if the object is a list value.

fn as_callable(&self) -> Option<&dyn Callable>

Callable view, if the object can be invoked.

fn as_class(&self) -> Option<&dyn Class>

Class view, if the object is a class.

fn as_shape(&self) -> Option<&dyn Shape>

Shape view, if the object is a shape.

fn as_object_encoder(&self) -> Option<&dyn ObjectEncode>

Object-encoder view, if the object encodes other objects.

fn as_read_constructor(&self) -> Option<&dyn ReadConstructor>

Read-constructor view, if the object decodes data forms.

fn as_number_domain(&self) -> Option<&dyn NumberDomain>

Number-domain view, if the object is a number domain.

fn as_number_value(&self) -> Option<&dyn NumberValue>

Number-value view, if the object is a domain number.

fn as_eval_fabric(&self) -> Option<&dyn EvalFabric>

Eval-fabric view, if the object is a distributed eval surface.

fn as_stream(&self) -> Option<&dyn Stream>

Stream view, if the object is a stream.

fn as_sequence(&self) -> Option<&dyn Sequence>

Sequence view, if the object is a sequence.

fn as_thunk(&self) -> Option<&dyn Thunk>

Thunk view, if the object is a deferred computation.

fn as_table_impl(&self) -> Option<&dyn Table>

Table-implementation view, if the object is a table.

fn as_dir(&self) -> Option<&dyn Dir>

Directory view, if the object is a directory.

fn publish_shape_satisfaction_claims( &self, _cx: &mut Cx, _shape: &Ref, ) -> Result<bool>

Publish claims asserting that the object satisfies shape; returns whether any were published.

fn as_table(&self, cx: &mut Cx) -> Result<Value>

Project the object into a table value; the default exposes its display.