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fix: #39 Adds a garbage collected deep copy test
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Signed-off-by: Ava Affine <ava@sunnypup.io>
This commit is contained in:
Ava Apples Affine 2025-07-28 23:36:26 +00:00
parent 7579d81d7b
commit f41ec0a14c
1 changed files with 24 additions and 5 deletions
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29
hyphae/src/heap.rs
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@ -127,7 +127,7 @@ impl<T: Clone> Gc<T> {
pub fn deep_copy(&self) -> Gc<T> {
Gc(unsafe {
NonNull::new(Box::into_raw(Box::new(Rc::from(
(*(self.0.as_ptr())).clone()))))
self.0.as_ref().clone()))))
.expect("GC obj deep copy nonnull ptr check")
})
}
@ -292,9 +292,9 @@ impl Index<usize> for Cons {
mod tests {
use super::*;
struct GcTester<'a>(&'a mut bool);
#[derive(Debug)]
struct GcTester<'a>(pub &'a mut bool);
// clone implementation leaks memory... but its for test
impl Clone for GcTester<'_> {
fn clone(&self) -> Self {
unsafe {
@ -309,13 +309,22 @@ mod tests {
}
}
// in non test code Id have to get the box back
impl Drop for GcTester<'_> {
fn drop(&mut self) {
*self.0 = true;
}
}
impl PartialEq for GcTester<'_> {
fn eq(&self, other: &Self) -> bool {
*(self.0) == *(other.0)
}
fn ne(&self, other: &Self) -> bool {
*(self.0) != *(other.0)
}
}
#[test]
fn test_gc_basic_behavior() {
let mut flag = false;
@ -333,5 +342,15 @@ mod tests {
assert!(flag)
}
// TODO: test deep copy
#[test]
fn test_gc_deep_copy() {
let mut flag = false;
let reference_holder =
Into::<Gc<GcTester>>::into(GcTester(&mut flag)).clone();
let copied_data = reference_holder.deep_copy();
assert_eq!(*reference_holder, *copied_data);
drop(reference_holder);
assert!(!*(*copied_data).0);
}
}