Trait Truthy

pub trait Truthy {
    // Required method
    fn truthy(&self) -> bool;

    // Provided methods
    fn falsy(&self) -> bool { ... }
    fn truthy_or<T>(self, other: T) -> Either<Self, T>
       where Self: Sized { ... }
    fn truthy_and<T>(self, other: T) -> Option<T>
       where Self: Sized { ... }
}

Convert to a bool.

Required Methods

fn truthy(&self) -> bool

Converts &self to a bool.

Provided Methods

fn falsy(&self) -> bool

Not truthy

fn truthy_or<T>(self, other: T) -> Either<Self, T>

where Self: Sized,

Left(self) if self is truthy, else Right(other)

assert_eq!(true.truthy_or('t').left(), Some(true));
assert_eq!(false.truthy_or('t').right(), Some('t'));

Examples found in repository

examples/and_or.rs (line 6)

fn main() {
    println!(r#"true.truthy_and("Hi!") => {:?}"#, true.truthy_and("Hi!"));
    println!(r#"false.truthy_and("Hi!") => {:?}"#, false.truthy_and("Hi!"));
    println!(r#"true.truthy_or("Hi!") => {:?}"#, true.truthy_or("Hi!"));
    println!(r#"false.truthy_or("Hi!") => {:?}"#, false.truthy_or("Hi!"));
}

fn truthy_and<T>(self, other: T) -> Option<T>

where Self: Sized,

Some(other) if self is truthy, else None

assert_eq!(true.truthy_and('t'), Some('t'));
assert_eq!(false.truthy_and('t'), None);

Examples found in repository

examples/and_or.rs (line 4)

fn main() {
    println!(r#"true.truthy_and("Hi!") => {:?}"#, true.truthy_and("Hi!"));
    println!(r#"false.truthy_and("Hi!") => {:?}"#, false.truthy_and("Hi!"));
    println!(r#"true.truthy_or("Hi!") => {:?}"#, true.truthy_or("Hi!"));
    println!(r#"false.truthy_or("Hi!") => {:?}"#, false.truthy_or("Hi!"));
}

Implementations on Foreign Types

impl Truthy for &str

fn truthy(&self) -> bool

impl Truthy for bool

fn truthy(&self) -> bool

impl Truthy for f32

fn truthy(&self) -> bool

impl Truthy for f64

fn truthy(&self) -> bool

impl Truthy for i8

fn truthy(&self) -> bool

impl Truthy for i16

fn truthy(&self) -> bool

impl Truthy for i32

fn truthy(&self) -> bool

impl Truthy for i64

fn truthy(&self) -> bool

impl Truthy for i128

fn truthy(&self) -> bool

impl Truthy for isize

fn truthy(&self) -> bool

impl Truthy for u8

fn truthy(&self) -> bool

impl Truthy for u16

fn truthy(&self) -> bool

impl Truthy for u32

fn truthy(&self) -> bool

impl Truthy for u64

fn truthy(&self) -> bool

impl Truthy for u128

fn truthy(&self) -> bool

impl Truthy for ()

fn truthy(&self) -> bool

impl Truthy for usize

fn truthy(&self) -> bool

impl<T1> Truthy for (T1,)

fn truthy(&self) -> bool

impl<T1, T2> Truthy for (T1, T2)

fn truthy(&self) -> bool

impl<T1, T2, T3> Truthy for (T1, T2, T3)

fn truthy(&self) -> bool

impl<T1, T2, T3, T4> Truthy for (T1, T2, T3, T4)

fn truthy(&self) -> bool

impl<T1, T2, T3, T4, T5> Truthy for (T1, T2, T3, T4, T5)

fn truthy(&self) -> bool

impl<T1, T2, T3, T4, T5, T6> Truthy for (T1, T2, T3, T4, T5, T6)

fn truthy(&self) -> bool

impl<T1, T2, T3, T4, T5, T6, T7> Truthy for (T1, T2, T3, T4, T5, T6, T7)

fn truthy(&self) -> bool

impl<T1, T2, T3, T4, T5, T6, T7, T8> Truthy for (T1, T2, T3, T4, T5, T6, T7, T8)

fn truthy(&self) -> bool

impl<T1, T2, T3, T4, T5, T6, T7, T8, T9> Truthy for (T1, T2, T3, T4, T5, T6, T7, T8, T9)

fn truthy(&self) -> bool

impl<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10> Truthy for (T1, T2, T3, T4, T5, T6, T7, T8, T9, T10)

fn truthy(&self) -> bool

impl<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11> Truthy for (T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11)

fn truthy(&self) -> bool

impl<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12> Truthy for (T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12)

fn truthy(&self) -> bool

impl<T> Truthy for Option<T>

where T: Truthy,

fn truthy(&self) -> bool

impl<T> Truthy for [T]

fn truthy(&self) -> bool

impl<T, E> Truthy for Result<T, E>

where T: Truthy,

fn truthy(&self) -> bool

Implementors