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

Selection of variables in a ‘for’ expression.

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

Variants§

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Any

Any variable in the set must match the condition.

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All

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

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None

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

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Expr

Fields

§expr: Box<Expression>

Number of variables selected

§as_percent: bool

Should the number be a percentage.

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.

Trait Implementations§

Returns a copy of the value. Read more
Performs copy-assignment from source. Read more
Formats the value using the given formatter. Read more
This method tests for self and other values to be equal, and is used by ==. Read more
This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason. Read more

Auto Trait Implementations§

Blanket Implementations§

Gets the TypeId of self. Read more
Immutably borrows from an owned value. Read more
Mutably borrows from an owned value. Read more

Returns the argument unchanged.

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

The resulting type after obtaining ownership.
Creates owned data from borrowed data, usually by cloning. Read more
Uses borrowed data to replace owned data, usually by cloning. Read more
The type returned in the event of a conversion error.
Performs the conversion.
The type returned in the event of a conversion error.
Performs the conversion.