Struct UnlessClause 

pub struct UnlessClause {
    pub condition: Expression,
    pub result: Expression,
    pub source_location: Option<Source>,
}

An unless clause that provides an alternative result

Unless clauses are evaluated in order, and the last matching condition wins. This matches natural language: “X unless A then Y, unless B then Z” - if both A and B are true, Z is returned (the last match).

Fields

condition: Expression

result: Expression

source_location: Option<Source>

Trait Implementations

impl Clone for UnlessClause

fn clone(&self) -> UnlessClause

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for UnlessClause

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

Formats the value using the given formatter.

impl PartialEq for UnlessClause

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for UnlessClause

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for UnlessClause