Enum OutputExpr 

pub enum OutputExpr {
    Ref(String),
    Field(String),
    Add(Box<OutputExpr>, Box<OutputExpr>),
    Subtract(Box<OutputExpr>, Box<OutputExpr>),
    Multiply(Box<OutputExpr>, Box<OutputExpr>),
    Divide {
        dividend: Box<OutputExpr>,
        divisor: Box<OutputExpr>,
        precision: u32,
    },
    Literal(f64),
}

Derived-output expression graph ($ref chains in document 19): arithmetic over other named outputs, evaluated after all source metrics.

Variants

Ref(String)

Reference to another named output.

Field(String)

Raw property on the root/related record, evaluated per row.

Add(Box<OutputExpr>, Box<OutputExpr>)

Addition of two derived expressions.

Subtract(Box<OutputExpr>, Box<OutputExpr>)

Subtraction of the second expression from the first.

Multiply(Box<OutputExpr>, Box<OutputExpr>)

Multiplication of two derived expressions.

Divide

Division of dividend by divisor, rounded to precision decimals.

Fields

dividend: Box<OutputExpr>

Numerator expression.

divisor: Box<OutputExpr>

Denominator expression.

precision: u32

Decimal places to round the quotient to.

Literal(f64)

A numeric literal.

Trait Implementations

impl Clone for OutputExpr

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for OutputExpr

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

Formats the value using the given formatter.