Struct arithmetic_eval::fns::Array

pub struct Array;

Function generating an array by mapping its indexes.

Type

(using arithmetic-typing notation)

(Num, (Num) -> 'T) -> ['T]

Examples

let program = "array(3, |i| 2 * i + 1) == (1, 3, 5)";
let program = Untyped::<F32Grammar>::parse_statements(program)?;
let module = ExecutableModule::new("test_array", &program)?;

let mut env = Environment::new();
env.insert_native_fn("array", fns::Array);
assert_eq!(module.with_env(&env)?.run()?, Value::Bool(true));

Trait Implementations

impl Clone for Array

fn clone(&self) -> Array

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Array

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

Formats the value using the given formatter.

impl Default for Array

fn default() -> Array

Returns the “default value” for a type.

impl<T> NativeFn<T> for Array

where T: 'static + Clone + Zero + One,

fn evaluate<'a>( &self, args: Vec<SpannedValue<T>>, ctx: &mut CallContext<'_, T>, ) -> EvalResult<T>

Executes the function on the specified arguments.

impl Copy for Array