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mod fuzz;
mod test;
#[doc(hidden)]
#[cfg(fuzzing)]
use fuzz::exec;
#[doc(hidden)]
#[cfg(not(fuzzing))]
#[allow(unused_imports)]
use test::exec;
pub mod generator {
pub use bolero_generator::{self, prelude::*};
}
use bolero_generator::{
combinator::{AndThenGenerator, FilterGenerator, FilterMapGenerator, MapGenerator},
TypeValueGenerator,
};
#[macro_export]
macro_rules! fuzz {
() => {
$crate::fuzz(env!("CARGO_MANIFEST_DIR"), file!())
};
(for $value:pat in gen() { $($tt:tt)* }) => {
$crate::fuzz!(for $value in ($crate::generator::gen()) { $($tt)* });
};
(for $value:pat in all() { $($tt:tt)* }) => {
$crate::fuzz!(for $value in ($crate::generator::gen()) { $($tt)* });
};
(for $value:pat in all($gen:expr) { $($tt:tt)* }) => {
$crate::fuzz!(for $value in ($gen) { $($tt)* });
};
(for $value:pat in each($gen:expr) { $($tt:tt)* }) => {
$crate::fuzz!(for $value in ($gen) { $($tt)* });
};
(for $value:pat in $gen:path { $($tt:tt)* }) => {
$crate::fuzz!(for $value in ($gen) { $($tt)* });
};
(for $value:pat in ($gen:expr) { $($tt:tt)* }) => {
$crate::fuzz!()
.with_generator({
use $crate::generator::*;
$gen
})
.for_each(|$value| {
$($tt)*
});
};
($fun:path) => {
$crate::fuzz!(|input| { $fun(input); });
};
(|$input:ident $(: &[u8])?| $impl:expr) => {
$crate::fuzz!().for_each(|$input: &[u8]| {
$impl;
});
};
(|$input:ident: $ty:ty| $impl:expr) => {
$crate::fuzz!().with_type().for_each(|$input: $ty| {
$impl;
});
};
}
pub struct FuzzTarget<G> {
manifest_dir: &'static str,
file: &'static str,
generator: G,
}
pub fn fuzz(manifest_dir: &'static str, file: &'static str) -> FuzzTarget<SliceGenerator> {
FuzzTarget::new(manifest_dir, file)
}
pub struct SliceGenerator;
impl FuzzTarget<SliceGenerator> {
pub fn new(manifest_dir: &'static str, file: &'static str) -> FuzzTarget<SliceGenerator> {
Self {
manifest_dir,
file,
generator: SliceGenerator,
}
}
}
impl<G> FuzzTarget<G> {
pub fn with_generator<NewG: generator::ValueGenerator>(
self,
generator: NewG,
) -> FuzzTarget<NewG> {
FuzzTarget {
manifest_dir: self.manifest_dir,
file: self.file,
generator,
}
}
pub fn with_type<T: generator::TypeGenerator>(self) -> FuzzTarget<TypeValueGenerator<T>> {
FuzzTarget {
manifest_dir: self.manifest_dir,
file: self.file,
generator: generator::gen(),
}
}
}
impl<G: generator::ValueGenerator> FuzzTarget<G> {
pub fn map<F: Fn(G::Output) -> T, T>(self, map: F) -> FuzzTarget<MapGenerator<G, F>> {
FuzzTarget {
manifest_dir: self.manifest_dir,
file: self.file,
generator: self.generator.map(map),
}
}
pub fn and_then<F: Fn(G::Output) -> T, T: generator::ValueGenerator>(
self,
map: F,
) -> FuzzTarget<AndThenGenerator<G, F>> {
FuzzTarget {
manifest_dir: self.manifest_dir,
file: self.file,
generator: self.generator.and_then(map),
}
}
pub fn filter<F: Fn(&G::Output) -> bool>(self, filter: F) -> FuzzTarget<FilterGenerator<G, F>> {
FuzzTarget {
manifest_dir: self.manifest_dir,
file: self.file,
generator: self.generator.filter(filter),
}
}
pub fn filter_map<F: Fn(G::Output) -> Option<T>, T>(
self,
filter_map: F,
) -> FuzzTarget<FilterMapGenerator<G, F>> {
FuzzTarget {
manifest_dir: self.manifest_dir,
file: self.file,
generator: self.generator.filter_map(filter_map),
}
}
}
#[cfg(not(test))]
impl<G: std::panic::RefUnwindSafe + generator::ValueGenerator> FuzzTarget<G> {
pub fn for_each<F: std::panic::RefUnwindSafe + FnMut(G::Output)>(self, mut check: F) -> ! {
use bolero_generator::driver::FuzzDriver;
unsafe {
exec(self.manifest_dir, self.file, &mut move |input, mode| {
if let Some(value) = self.generator.generate(&mut FuzzDriver::new(input, mode)) {
check(value);
true
} else {
false
}
});
}
}
}
#[cfg(test)]
impl<G: std::panic::RefUnwindSafe + generator::ValueGenerator> FuzzTarget<G> {
pub fn for_each<F: std::panic::RefUnwindSafe + FnMut(G::Output)>(self, mut check: F) {
for _ in 0u8..100 {
if let Some(value) = self.generator.generate(&mut rand::thread_rng()) {
check(value);
}
}
}
}
#[cfg(not(test))]
impl FuzzTarget<SliceGenerator> {
pub fn for_each<F: std::panic::RefUnwindSafe + FnMut(&[u8])>(self, mut check: F) -> ! {
unsafe {
exec(self.manifest_dir, self.file, &mut move |input, _mode| {
check(input);
true
});
}
}
}
#[cfg(test)]
impl FuzzTarget<SliceGenerator> {
pub fn for_each<F: std::panic::RefUnwindSafe + FnMut(&[u8])>(self, mut check: F) {
for i in 0u8..100 {
let input = vec![i; i as usize];
check(&input[..]);
}
}
}
#[test]
fn slice_generator_test() {
fuzz!().for_each(|_input| {
});
}
#[test]
fn type_generator_test() {
fuzz!().with_type().for_each(|_input: u8| {
});
}
#[test]
fn range_generator_test() {
fuzz!().with_generator(0..=5).for_each(|_input: u8| {
});
}
mod derive_tests {
use bolero_generator::TypeGenerator;
#[derive(Debug, TypeGenerator)]
pub struct Bar {
foo: u32,
bar: u64,
baz: u8,
}
#[derive(Debug, TypeGenerator)]
pub enum Operation {
Insert {
#[generator(1..3)]
index: usize,
value: u32,
},
Remove {
#[generator(4..6)]
index: usize,
},
Bar(Bar),
Other(#[generator(42..53)] usize),
Clear,
}
#[derive(TypeGenerator)]
pub union Foo {
foo: u32,
bar: u64,
baz: u8,
}
#[test]
fn operation_test() {
fuzz!().with_type().for_each(|input: Vec<Operation>| {
println!("{:?}", input);
});
}
}