SliceSpec class

Slice specification for N-dimensional array slicing

Represents a slice along a single dimension, similar to Python's slice notation. Supports:

• Single index: 5
• Range: start:stop:step
• Open-ended: :stop, start:, :
• Negative indices (from end)

Example:

// Single index
var s1 = SliceSpec.single(5);

// Range [0:10]
var s2 = SliceSpec(0, 10);

// Range [0:10:2] (every other element)
var s3 = SliceSpec(0, 10, step: 2);

// All elements [:]
var s4 = SliceSpec.all();

// From start to 10 [:10]
var s5 = SliceSpec(null, 10);

// From 5 to end [5:]
var s6 = SliceSpec(5, null);

Constructors

SliceSpec(int? start, int? stop, {int step = 1})

Create a slice specification

SliceSpec.all()

Create a slice that selects all elements :

SliceSpec.single(int index)

Create a single-index slice (not a range)

Properties

hashCode → int

The hash code for this object.

no setter, override

isSingleIndex → bool

Check if this is a single index (not a range)

no setter

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

start → int?

Start index (inclusive), null means from beginning

final

step → int

Step size, defaults to 1

final

stop → int?

Stop index (exclusive), null means to end

final

Methods

indices(int dimSize) → List<int>

Get the actual indices this slice will select

length(int dimSize) → int

Calculate the number of elements this slice will select

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

resolve(int dimSize) → (int, int, int)

Resolve slice against a dimension size

toString() → String

A string representation of this object.

override

Operators

operator ==(Object other) → bool

The equality operator.

override