Enum ForSelection 

pub enum ForSelection {
    Any,
    All,
    None,
    Expr {
        expr: Box<Expression>,
        as_percent: bool,
    },
}

Selection of variables in a ‘for’ expression.

This indicates how many variables must match the for condition for it to be considered true.

Variants

Any

Any variable in the set must match the condition.

All

All of the variables in the set must match the condition.

None

None of the variables in the set must match the condition.

Expr

ParsedExpr that should evaluate to a number, indicating:

• if as_percent is false, how many variables in the set must match the condition.
• if as_percent is true, which percentage of variables in the set msut match the condition. the condition.

Usually, the expression is a simple number.

Fields

expr: Box<Expression>

Number of variables selected

as_percent: bool

Should the number be a percentage.

Trait Implementations

impl Clone for ForSelection

fn clone(&self) -> ForSelection

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ForSelection

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

Formats the value using the given formatter.

impl PartialEq for ForSelection

fn eq(&self, other: &ForSelection) -> 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 StructuralPartialEq for ForSelection