Struct DerivedColumn 

pub struct DerivedColumn {
    pub name: String,
    pub expression: String,
}

Fields

name: String

expression: String

Implementations

impl DerivedColumn

pub fn parse(spec: &str) -> Result<Self>

pub fn evaluate( &self, headers: &[String], raw_row: &[String], typed_row: &[Option<Value>], row_number: Option<usize>, ) -> Result<String>

Trait Implementations

impl Clone for DerivedColumn

fn clone(&self) -> DerivedColumn

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DerivedColumn

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

Formats the value using the given formatter.