Enum Expression 

pub enum Expression<'a> {
    Additive(Expressions<'a>, Expressions<'a>),
    Multiplicative(Expressions<'a>, Expressions<'a>),
    Negate(Box<Expression<'a>>),
    Or(Expressions<'a>),
    And(Expressions<'a>),
    Not(Box<Expression<'a>>),
    Comparison(Box<Expression<'a>>, TokenType, Box<Expression<'a>>),
    Value(Value),
    Variable(&'a str),
    ListValue(Expressions<'a>),
    Builder(&'a str, NamedExpressions<'a>),
    FunctionCall(&'a str, Expressions<'a>),
    IndexOf(Box<Expression<'a>>, Box<Expression<'a>>),
    Ternary(Box<Expression<'a>>, Box<Expression<'a>>, Box<Expression<'a>>),
}

Expressions are trees of operations that can be evaluated into a Value.

Variants

Additive(Expressions<'a>, Expressions<'a>)

Multiplicative(Expressions<'a>, Expressions<'a>)

Negate(Box<Expression<'a>>)

Or(Expressions<'a>)

And(Expressions<'a>)

Not(Box<Expression<'a>>)

Comparison(Box<Expression<'a>>, TokenType, Box<Expression<'a>>)

Value(Value)

Variable(&'a str)

ListValue(Expressions<'a>)

Builder(&'a str, NamedExpressions<'a>)

FunctionCall(&'a str, Expressions<'a>)

IndexOf(Box<Expression<'a>>, Box<Expression<'a>>)

Ternary(Box<Expression<'a>>, Box<Expression<'a>>, Box<Expression<'a>>)

Trait Implementations

impl<'a> Clone for Expression<'a>

fn clone(&self) -> Expression<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for Expression<'a>

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

Formats the value using the given formatter.