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use crate::prelude::*;
/// Intermediate result of [`dice::zip_once`].
///
/// [`dice::zip_once`]: dice::zip_once()
#[non_exhaustive]
pub struct ZipOnceArities;
macro_rules! zip_once_with_arity {
($arity:ident: $($Ti:ident, $die_i:ident)+) => (
#[allow(clippy::too_many_arguments)]
pub fn $arity<$($Ti,)*>(
self,
$($die_i: impl DieOnce<$Ti>,)*
) -> impl DieOnce<($($Ti,)*)> {
dice::from_fn_once(move |mut fate| {
($(fate.roll($die_i),)*)
})
}
)
}
impl ZipOnceArities {
zip_once_with_arity! { two:
T1, die_1
T2, die_2
}
zip_once_with_arity! { three:
T1, die_1
T2, die_2
T3, die_3
}
zip_once_with_arity! { four:
T1, die_1
T2, die_2
T3, die_3
T4, die_4
}
zip_once_with_arity! { five:
T1, die_1
T2, die_2
T3, die_3
T4, die_4
T5, die_5
}
zip_once_with_arity! { six:
T1, die_1
T2, die_2
T3, die_3
T4, die_4
T5, die_5
T6, die_6
}
zip_once_with_arity! { seven:
T1, die_1
T2, die_2
T3, die_3
T4, die_4
T5, die_5
T6, die_6
T7, die_7
}
zip_once_with_arity! { eight:
T1, die_1
T2, die_2
T3, die_3
T4, die_4
T5, die_5
T6, die_6
T7, die_7
T8, die_8
}
zip_once_with_arity! { nine:
T1, die_1
T2, die_2
T3, die_3
T4, die_4
T5, die_5
T6, die_6
T7, die_7
T8, die_8
T9, die_9
}
}
/// Generates a tuple containing the generated values of several generators.
///
/// # Examples
///
/// ```
/// use dicetest::prelude::*;
/// use dicetest::{Prng, Limit};
///
/// let mut prng = Prng::from_seed(0x5EED.into());
/// let limit = Limit::default();
/// let mut fate = Fate::new(&mut prng, limit);
///
/// let zero_die = dice::just_once(0);
/// let one_die = dice::just_once(1.0);
/// let (zero, one) = fate.roll(dice::zip_once().two(zero_die, one_die));
/// assert_eq!(zero, 0);
/// assert_eq!(one, 1.0);
/// ```
pub fn zip_once() -> ZipOnceArities {
ZipOnceArities {}
}
/// Intermediate result of [`dice::zip`].
///
/// [`dice::zip`]: dice::zip()
#[non_exhaustive]
pub struct ZipArities;
macro_rules! zip_with_arity {
($arity:ident: $($Ti:ident, $die_i:ident)+) => (
#[allow(clippy::too_many_arguments)]
pub fn $arity<$($Ti,)*>(
self,
$($die_i: impl Die<$Ti>,)*
) -> impl Die<($($Ti,)*)> {
dice::from_fn(move |mut fate| {
($(fate.roll(&$die_i),)*)
})
}
)
}
impl ZipArities {
zip_with_arity! { two:
T1, die_1
T2, die_2
}
zip_with_arity! { three:
T1, die_1
T2, die_2
T3, die_3
}
zip_with_arity! { four:
T1, die_1
T2, die_2
T3, die_3
T4, die_4
}
zip_with_arity! { five:
T1, die_1
T2, die_2
T3, die_3
T4, die_4
T5, die_5
}
zip_with_arity! { six:
T1, die_1
T2, die_2
T3, die_3
T4, die_4
T5, die_5
T6, die_6
}
zip_with_arity! { seven:
T1, die_1
T2, die_2
T3, die_3
T4, die_4
T5, die_5
T6, die_6
T7, die_7
}
zip_with_arity! { eight:
T1, die_1
T2, die_2
T3, die_3
T4, die_4
T5, die_5
T6, die_6
T7, die_7
T8, die_8
}
zip_with_arity! { nine:
T1, die_1
T2, die_2
T3, die_3
T4, die_4
T5, die_5
T6, die_6
T7, die_7
T8, die_8
T9, die_9
}
}
/// Generates a tuple containing the generated values of several generators.
///
/// # Examples
///
/// ```
/// use dicetest::prelude::*;
/// use dicetest::{Prng, Limit};
///
/// let mut prng = Prng::from_seed(0x5EED.into());
/// let limit = Limit::default();
/// let mut fate = Fate::new(&mut prng, limit);
///
/// let zero_die = dice::just(0);
/// let one_die = dice::just(1.0);
/// let (zero, one) = fate.roll(dice::zip().two(zero_die, one_die));
/// assert_eq!(zero, 0);
/// assert_eq!(one, 1.0);
/// ```
pub fn zip() -> ZipArities {
ZipArities {}
}