use crate::{Driver, TypeGenerator, TypeGeneratorWithParams, TypeValueGenerator, ValueGenerator};
impl<T: TypeGenerator, const LEN: usize> TypeGenerator for [T; LEN] {
fn generate<D: Driver>(driver: &mut D) -> Option<Self> {
driver.enter_product::<Self, _, _>(|driver| {
let mut maybe_init: [Option<T>; LEN] = [(); LEN].map(|_| None);
for value in &mut maybe_init {
*value = Some(T::generate(driver)?);
}
Some(maybe_init.map(|t| t.unwrap()))
})
}
fn mutate<D: Driver>(&mut self, driver: &mut D) -> Option<()> {
driver.enter_product::<Self, _, _>(|driver| {
for item in self.iter_mut() {
item.mutate(driver)?;
}
Some(())
})
}
}
impl<G: ValueGenerator, const LEN: usize> ValueGenerator for [G; LEN] {
type Output = [G::Output; LEN];
fn generate<D: Driver>(&self, driver: &mut D) -> Option<Self::Output> {
driver.enter_product::<Self::Output, _, _>(|driver| {
let mut maybe_init: [Option<G::Output>; LEN] = [(); LEN].map(|_| None);
for (generator, value) in self.iter().zip(&mut maybe_init) {
*value = Some(generator.generate(driver)?);
}
Some(maybe_init.map(|t| t.unwrap()))
})
}
fn mutate<D: Driver>(&self, driver: &mut D, value: &mut Self::Output) -> Option<()> {
driver.enter_product::<Self::Output, _, _>(|driver| {
for (generator, value) in self.iter().zip(value.iter_mut()) {
generator.mutate(driver, value)?;
}
Some(())
})
}
}
impl<T: TypeGenerator, const LEN: usize> TypeGeneratorWithParams for [T; LEN] {
type Output = [TypeValueGenerator<T>; LEN];
fn gen_with() -> Self::Output {
[T::gen(); LEN]
}
}
#[test]
fn array_type_test() {
let _ = generator_test!(gen::<[u8; 10]>());
}
#[test]
fn array_gen_test() {
let _ = generator_test!([gen::<u8>(), gen::<u8>()]);
}