Struct Repeat

pub struct Repeat { /* private fields */ }

A stack of repeat counters.

Implementations

impl Repeat

pub fn new() -> Self

Create a new repeat stack.

pub fn repeat_from(&mut self, location: usize, amount: Word) -> RepeatResult<()>

Add a new repeat location and counter to the stack. Counts down to 0.

pub fn repeat_to(&mut self, location: usize, limit: Word) -> RepeatResult<()>

Add a new repeat location and counter to the stack. Counts up from 0 to limit - 1.

pub fn counter(&self) -> RepeatResult<Word>

Get the current repeat counter.

Returns an error if the stack is empty.

pub fn repeat(&mut self) -> RepeatResult<Option<usize>>

If there is a counter on the stack and the counter has greater then 1 repeat left then this will decrement the counter and return the index to repeat to.

If the counter is 1 then this will pop the counter and return None because the repeat is done.

If called when the stack is empty then this will return an error.

Note that because the code has run once before the RepeatEnd is hit then we stop at 1.

Trait Implementations

impl Debug for Repeat

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

Formats the value using the given formatter.

impl Default for Repeat

fn default() -> Repeat

Returns the “default value” for a type.

impl PartialEq for Repeat

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for Repeat