Enum CanonicalAttrs 

pub enum CanonicalAttrs {
    Range {
        start: f64,
        stop: f64,
        step: f64,
        inclusive: bool,
    },
    Space {
        start: f64,
        stop: f64,
        count: usize,
        endpoint: bool,
        base: Option<f64>,
        geometric: bool,
    },
    Eye {
        rows: usize,
        cols: usize,
        diagonal: isize,
    },
    Full {
        value: f64,
    },
    Axis {
        axis: usize,
    },
    Pad {
        widths: Arc<[(usize, usize)]>,
        mode: PadMode,
    },
    Clip {
        minimum: f64,
        maximum: f64,
    },
    Diff {
        axis: usize,
        periods: usize,
    },
    Close {
        relative: f64,
        absolute: f64,
        equal_nan: bool,
    },
    None,
}

Explicit parameters and edge policy carried by canonical operation requests.

Variants

Range

Finite arithmetic progression and endpoint policy.

Fields

start: f64

First value.

stop: f64

Endpoint bound.

step: f64

Nonzero increment.

inclusive: bool

Whether an exactly reached endpoint is included.

Space

Counted linear, logarithmic, or geometric space.

Fields

start: f64

First value or exponent.

stop: f64

Last value or exponent.

count: usize

Requested output count; zero is valid.

endpoint: bool

Whether the last value is the exact endpoint.

base: Option<f64>

Optional logarithm base.

geometric: bool

Whether interpolation is geometric.

Eye

Identity-grid dimensions and diagonal offset.

Fields

rows: usize

Row count.

cols: usize

Column count.

diagonal: isize

Signed diagonal offset.

Full

Scalar repeated by full.

Fields

value: f64

Repeated value.

Axis

Explicit row-major axis.

Fields

axis: usize

Zero-based axis.

Pad

Per-axis padding widths and mode.

Fields

widths: Arc<[(usize, usize)]>

(before, after) widths for every axis.

mode: PadMode

Explicit fill behavior.

Clip

Inclusive clipping interval.

Fields

minimum: f64

Lower bound.

maximum: f64

Upper bound.

Diff

Repeated finite difference parameters.

Fields

axis: usize

Axis along which differences are taken.

periods: usize

Number of difference passes.

Close

Separate closeness tolerances and NaN policy.

Fields

relative: f64

Relative tolerance.

absolute: f64

Absolute tolerance.

equal_nan: bool

Whether paired NaNs compare close.

None

Operation has no scalar parameters.

Trait Implementations

impl Clone for CanonicalAttrs

fn clone(&self) -> CanonicalAttrs

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CanonicalAttrs

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

Formats the value using the given formatter.

impl Object for CanonicalAttrs

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<(), Error>

Emit the object’s claims matching pattern into sink.

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

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

impl ObjectCompat for CanonicalAttrs

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 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 + 'static)>

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_list(&self) -> Option<&(dyn ListValue + 'static)>

List view, if the object is a list value.

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

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

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

Directory view, if the object is a directory.

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

Truthiness of the object; defaults to true.

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

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

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

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

impl PartialEq for CanonicalAttrs

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for CanonicalAttrs