Trait Indexable

pub trait Indexable: Debug {
    // Required method
    fn index(&self, index: usize) -> Option<Expression>;

    // Provided method
    fn index_or_err(&self, index: usize) -> Result<Expression, Error> { ... }
}

Required Methods

fn index(&self, index: usize) -> Option<Expression>

Provided Methods

fn index_or_err(&self, index: usize) -> Result<Expression, Error>

Implementors

impl Indexable for Expression

impl Indexable for StructExpr