Struct Span 

pub struct Span {
    pub from: Option<u32>,
    pub to: Option<u32>,
}

Where a line sounds inside its section — @ 3..8, @ 5.., @ ..4, @ 8.

Cycles are 1-based and inclusive at both ends, matching how a..b reads everywhere else in the language and how a musician counts bars. Either end may be omitted, meaning the section’s own start or end.

Fields

from: Option<u32>

to: Option<u32>

Implementations

impl Span

pub fn at(cycle: u32) -> Self

A single cycle: @ 8.

pub fn start(&self) -> u32

The first cycle the line sounds on, resolved against its section.

pub fn end(&self, cycles: u32) -> u32

The last cycle the line sounds on, resolved against a section of cycles length.

pub fn contains(&self, cycle: u32, cycles: u32) -> bool

Whether the line sounds on cycle (1-based) of a section of cycles length.

pub fn conflict(&self, cycles: u32) -> Option<String>

Why this span could never sound in a section of cycles length, if so.

A line that can never sound is a mistake rather than a silence, so the two ways of writing one are reported rather than played as a rest.

Trait Implementations

impl Clone for Span

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Span

impl Debug for Span

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

Formats the value using the given formatter.

impl Eq for Span

impl PartialEq for Span

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Span