Enum unsegen::base::style::BoolModifyMode

pub enum BoolModifyMode {
    True,
    False,
    Toggle,
    LeaveUnchanged,
}

Specifies how to modify a bool value.

(In essence, specifies one of all possible unary boolean functions.)

Variants

True

False

Toggle

LeaveUnchanged

Implementations

impl BoolModifyMode

pub fn on_top_of(self, other: Self) -> Self

Combine the current value with that of the argument so that the application of the returned value is always equivalent to first applying other and then applying self to a bool.

Examples:

use unsegen::base::BoolModifyMode;

assert_eq!(BoolModifyMode::LeaveUnchanged.on_top_of(BoolModifyMode::False),
            BoolModifyMode::False);
assert_eq!(BoolModifyMode::True.on_top_of(BoolModifyMode::Toggle /*or any other value*/),
            BoolModifyMode::True);
assert_eq!(BoolModifyMode::Toggle.on_top_of(BoolModifyMode::Toggle),
            BoolModifyMode::LeaveUnchanged);

pub fn modify(self, target: &mut bool)

Modify the target bool according to the modification mode.

Examples:

use unsegen::base::BoolModifyMode;

let mut b = true;
BoolModifyMode::False.modify(&mut b);
assert_eq!(b, false);

let mut b = false;
BoolModifyMode::LeaveUnchanged.modify(&mut b);
assert_eq!(b, false);

let mut b = false;
BoolModifyMode::Toggle.modify(&mut b);
assert_eq!(b, true);

Trait Implementations

impl Clone for BoolModifyMode

fn clone(&self) -> BoolModifyMode

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for BoolModifyMode

impl Debug for BoolModifyMode

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

Formats the value using the given formatter.

impl Eq for BoolModifyMode

impl From<bool> for BoolModifyMode

fn from(on: bool) -> Self

Performs the conversion.

impl PartialEq<BoolModifyMode> for BoolModifyMode

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

This method tests for self and other values to be equal, and is used by ==.

#[must_use]fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl StructuralEq for BoolModifyMode

impl StructuralPartialEq for BoolModifyMode