Enum Amount 

#[non_exhaustive]
pub enum Amount {
    Auto,
    Bytes(u64),
    Percent(u8),
}

A budget: auto, a size, or a percentage of what the key names.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Auto

Computed from the machine (see the key’s help).

Bytes(u64)

A fixed size in bytes.

Percent(u8)

A percentage (0..=100) of what the key names.

Trait Implementations

impl Clone for Amount

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Amount

impl Debug for Amount

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

Formats the value using the given formatter.

impl Display for Amount

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

Formats the value using the given formatter.

impl Eq for Amount

impl PartialEq for Amount

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Amount

impl Value for Amount

const EXPECTED: &'static str = "auto, a size (512M, 4G; a bare number is MiB) or a percentage (25%)"

What the text may be, for error messages.

fn parse(text: &str) -> Option<Amount>

The value text spells, or None when it is not one.

fn is_auto(&self) -> bool

Computed from the machine rather than given.