fix props memory leak

This commit is contained in:
Evan Almloff committed 2023-10-26 13:06:42 -05:00
commit fca9d95519
5 files changed
+69 -18

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+35 -3
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@@ -1,10 +1,14 @@
use crate::nodes::RenderReturn;
use crate::{Attribute, AttributeValue, VComponent};
use bumpalo::Bump;
use std::cell::RefCell;
use std::cell::{Cell, UnsafeCell};
pub(crate) struct BumpFrame {
pub bump: UnsafeCell<Bump>,
pub node: Cell<*const RenderReturn<'static>>,
pub(crate) attributes_to_drop_before_reset: RefCell<Vec<*const Attribute<'static>>>,
pub(crate) props_to_drop_before_reset: RefCell<Vec<*const VComponent<'static>>>,
}
impl BumpFrame {
@@ -13,6 +17,8 @@ impl BumpFrame {
Self {
bump: UnsafeCell::new(bump),
node: Cell::new(std::ptr::null()),
attributes_to_drop_before_reset: Default::default(),
props_to_drop_before_reset: Default::default(),
}
}
@@ -31,8 +37,34 @@ impl BumpFrame {
unsafe { &*self.bump.get() }
}
#[allow(clippy::mut_from_ref)]
pub(crate) unsafe fn bump_mut(&self) -> &mut Bump {
unsafe { &mut *self.bump.get() }
pub(crate) fn add_attribute_to_drop(&self, attribute: *const Attribute<'static>) {
self.attributes_to_drop_before_reset
.borrow_mut()
.push(attribute);
}
pub(crate) unsafe fn reset(&self) {
let mut attributes = self.attributes_to_drop_before_reset.borrow_mut();
attributes.drain(..).for_each(|attribute| {
let attribute = unsafe { &*attribute };
if let AttributeValue::Any(l) = &attribute.value {
_ = l.take();
}
});
let mut props = self.props_to_drop_before_reset.borrow_mut();
props.drain(..).for_each(|prop| {
let prop = unsafe { &*prop };
_ = prop.props.borrow_mut().take();
});
unsafe {
let bump = &mut *self.bump.get();
bump.reset();
}
}
}
impl Drop for BumpFrame {
fn drop(&mut self) {
unsafe { self.reset() }
}
}