Patch memory leak in Archetype::grow(). (#569)

Ratysz · web-flow · commit 3abfcad7ab5e · 2020-09-25T12:33:27.000-07:00
diff --git a/crates/bevy_ecs/hecs/src/archetype.rs b/crates/bevy_ecs/hecs/src/archetype.rs
@@ -304,6 +304,13 @@ impl Archetype {
                         new_data.as_ptr().add(new_off),
                         ty.layout.size() * old_count,
                     );
+                    dealloc(
+                        (*self.data.get()).as_ptr().cast(),
+                        Layout::from_size_align_unchecked(
+                            old_data_size,
+                            self.types.first().map_or(1, |x| x.layout.align()),
+                        ),
+                    );
                 }
             }
 

Original file line number	Diff line number	Diff line change
`@@ -304,6 +304,13 @@ impl Archetype {`
`304`	`304`	`new_data.as_ptr().add(new_off),`
`305`	`305`	`ty.layout.size() * old_count,`
`306`	`306`	`);`
	`307`	`+ dealloc(`
	`308`	`+ (*self.data.get()).as_ptr().cast(),`
	`309`	`+ Layout::from_size_align_unchecked(`
	`310`	`+ old_data_size,`
	`311`	`+ self.types.first().map_or(1, \|x\| x.layout.align()),`
	`312`	`+ ),`
	`313`	`+ );`
`307`	`314`	`}`
`308`	`315`	`}`
`309`	`316`