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#![cfg(feature = "nightly")]
use criterion::black_box;
use swc_allocator::{boxed::Box, Allocator, FastAlloc};
#[test]
fn direct_alloc_std() {
let mut buf = std::vec::Vec::new();
for i in 0..1000 {
let item: std::boxed::Box<usize> = black_box(std::boxed::Box::new(black_box(i)));
buf.push(item);
}
}
#[test]
fn direct_alloc_no_scope() {
let mut vec = swc_allocator::vec::Vec::new();
for i in 0..1000 {
let item: swc_allocator::boxed::Box<usize> =
black_box(swc_allocator::boxed::Box::new(black_box(i)));
vec.push(item);
}
}
#[test]
fn direct_alloc_in_scope() {
let allocator = Allocator::default();
let _guard = unsafe { allocator.guard() };
let mut vec = swc_allocator::vec::Vec::new();
for i in 0..1000 {
let item: swc_allocator::boxed::Box<usize> =
black_box(swc_allocator::boxed::Box::new(black_box(i)));
vec.push(item);
}
}
#[test]
fn escape() {
let allocator = Allocator::default();
let obj = {
let _guard = unsafe { allocator.guard() };
Box::new(1234)
};
assert_eq!(*obj, 1234);
// It should not segfault, because the allocator is still alive.
drop(obj);
}
#[test]
fn global_allocator_escape() {
let allocator = Allocator::default();
let obj = {
let _guard = unsafe { allocator.guard() };
Box::new_in(1234, FastAlloc::global())
};
assert_eq!(*obj, 1234);
drop(allocator);
// Object created with global allocator should outlive the allocator.
drop(obj);
}
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