mirror of
https://github.com/zerotier/ZeroTierOne.git
synced 2025-02-04 02:00:46 +00:00
636 lines
18 KiB
Rust
636 lines
18 KiB
Rust
#![cfg(feature = "nightly")]
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use std::cell::{Cell, RefCell};
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use std::rc::Rc;
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use wasm_bindgen::prelude::*;
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use wasm_bindgen_test::*;
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#[wasm_bindgen(module = "tests/wasm/closures.js")]
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extern "C" {
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fn works_call(a: &dyn Fn());
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fn works_thread(a: &dyn Fn(u32) -> u32) -> u32;
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fn cannot_reuse_call(a: &dyn Fn());
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#[wasm_bindgen(catch)]
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fn cannot_reuse_call_again() -> Result<(), JsValue>;
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fn long_lived_call1(a: &Closure<dyn Fn()>);
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fn long_lived_call2(a: &Closure<dyn FnMut(u32) -> u32>) -> u32;
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fn many_arity_call1(a: &Closure<dyn Fn()>);
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fn many_arity_call2(a: &Closure<dyn Fn(u32)>);
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fn many_arity_call3(a: &Closure<dyn Fn(u32, u32)>);
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fn many_arity_call4(a: &Closure<dyn Fn(u32, u32, u32)>);
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fn many_arity_call5(a: &Closure<dyn Fn(u32, u32, u32, u32)>);
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fn many_arity_call6(a: &Closure<dyn Fn(u32, u32, u32, u32, u32)>);
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fn many_arity_call7(a: &Closure<dyn Fn(u32, u32, u32, u32, u32, u32)>);
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fn many_arity_call8(a: &Closure<dyn Fn(u32, u32, u32, u32, u32, u32, u32)>);
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fn many_arity_call9(a: &Closure<dyn Fn(u32, u32, u32, u32, u32, u32, u32, u32)>);
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#[wasm_bindgen(js_name = many_arity_call1)]
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fn many_arity_call_mut1(a: &Closure<dyn FnMut()>);
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#[wasm_bindgen(js_name = many_arity_call2)]
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fn many_arity_call_mut2(a: &Closure<dyn FnMut(u32)>);
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#[wasm_bindgen(js_name = many_arity_call3)]
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fn many_arity_call_mut3(a: &Closure<dyn FnMut(u32, u32)>);
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#[wasm_bindgen(js_name = many_arity_call4)]
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fn many_arity_call_mut4(a: &Closure<dyn FnMut(u32, u32, u32)>);
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#[wasm_bindgen(js_name = many_arity_call5)]
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fn many_arity_call_mut5(a: &Closure<dyn FnMut(u32, u32, u32, u32)>);
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#[wasm_bindgen(js_name = many_arity_call6)]
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fn many_arity_call_mut6(a: &Closure<dyn FnMut(u32, u32, u32, u32, u32)>);
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#[wasm_bindgen(js_name = many_arity_call7)]
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fn many_arity_call_mut7(a: &Closure<dyn FnMut(u32, u32, u32, u32, u32, u32)>);
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#[wasm_bindgen(js_name = many_arity_call8)]
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fn many_arity_call_mut8(a: &Closure<dyn FnMut(u32, u32, u32, u32, u32, u32, u32)>);
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#[wasm_bindgen(js_name = many_arity_call9)]
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fn many_arity_call_mut9(a: &Closure<dyn FnMut(u32, u32, u32, u32, u32, u32, u32, u32)>);
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fn option_call1(a: Option<&Closure<dyn Fn()>>);
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fn option_call2(a: Option<&Closure<dyn FnMut(u32) -> u32>>) -> u32;
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fn option_call3(a: Option<&Closure<dyn Fn()>>) -> bool;
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#[wasm_bindgen(js_name = many_arity_call1)]
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fn many_arity_stack1(a: &dyn Fn());
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#[wasm_bindgen(js_name = many_arity_call2)]
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fn many_arity_stack2(a: &dyn Fn(u32));
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#[wasm_bindgen(js_name = many_arity_call3)]
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fn many_arity_stack3(a: &dyn Fn(u32, u32));
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#[wasm_bindgen(js_name = many_arity_call4)]
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fn many_arity_stack4(a: &dyn Fn(u32, u32, u32));
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#[wasm_bindgen(js_name = many_arity_call5)]
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fn many_arity_stack5(a: &dyn Fn(u32, u32, u32, u32));
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#[wasm_bindgen(js_name = many_arity_call6)]
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fn many_arity_stack6(a: &dyn Fn(u32, u32, u32, u32, u32));
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#[wasm_bindgen(js_name = many_arity_call7)]
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fn many_arity_stack7(a: &dyn Fn(u32, u32, u32, u32, u32, u32));
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#[wasm_bindgen(js_name = many_arity_call8)]
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fn many_arity_stack8(a: &dyn Fn(u32, u32, u32, u32, u32, u32, u32));
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#[wasm_bindgen(js_name = many_arity_call9)]
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fn many_arity_stack9(a: &dyn Fn(u32, u32, u32, u32, u32, u32, u32, u32));
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fn long_lived_dropping_cache(a: &Closure<dyn Fn()>);
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#[wasm_bindgen(catch)]
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fn long_lived_dropping_call() -> Result<(), JsValue>;
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fn long_lived_option_dropping_cache(a: Option<&Closure<dyn Fn()>>) -> bool;
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#[wasm_bindgen(catch)]
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fn long_lived_option_dropping_call() -> Result<(), JsValue>;
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fn long_fnmut_recursive_cache(a: &Closure<dyn FnMut()>);
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#[wasm_bindgen(catch)]
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fn long_fnmut_recursive_call() -> Result<(), JsValue>;
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fn fnmut_call(a: &mut dyn FnMut());
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fn fnmut_thread(a: &mut dyn FnMut(u32) -> u32) -> u32;
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fn fnmut_bad_call(a: &mut dyn FnMut());
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#[wasm_bindgen(catch)]
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fn fnmut_bad_again(a: bool) -> Result<(), JsValue>;
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fn string_arguments_call(a: &mut dyn FnMut(String));
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fn string_ret_call(a: &mut dyn FnMut(String) -> String);
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fn drop_during_call_save(a: &Closure<dyn Fn()>);
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fn drop_during_call_call();
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fn js_test_closure_returner();
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fn calling_it_throws(a: &Closure<dyn FnMut()>) -> bool;
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fn call_val(f: &JsValue);
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#[wasm_bindgen(js_name = calling_it_throws)]
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fn call_val_throws(f: &JsValue) -> bool;
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fn pass_reference_first_arg_twice(
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a: RefFirstArgument,
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b: &Closure<dyn FnMut(&RefFirstArgument)>,
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c: &Closure<dyn FnMut(&RefFirstArgument)>,
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);
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#[wasm_bindgen(js_name = pass_reference_first_arg_twice)]
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fn pass_reference_first_arg_twice2(
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a: RefFirstArgument,
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b: &mut dyn FnMut(&RefFirstArgument),
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c: &mut dyn FnMut(&RefFirstArgument),
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);
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fn call_destroyed(a: &JsValue);
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fn js_store_forgotten_closure(closure: &Closure<dyn Fn()>);
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fn js_call_forgotten_closure();
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}
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#[wasm_bindgen_test]
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fn works() {
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let a = Cell::new(false);
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works_call(&|| a.set(true));
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assert!(a.get());
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assert_eq!(works_thread(&|a| a + 1), 3);
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}
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#[wasm_bindgen_test]
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fn cannot_reuse() {
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cannot_reuse_call(&|| {});
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assert!(cannot_reuse_call_again().is_err());
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}
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#[wasm_bindgen_test]
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fn debug() {
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let closure = Closure::wrap(Box::new(|| {}) as Box<dyn FnMut()>);
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assert_eq!(&format!("{:?}", closure), "Closure { ... }");
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}
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#[wasm_bindgen_test]
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fn long_lived() {
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let hit = Rc::new(Cell::new(false));
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let hit2 = hit.clone();
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let a = Closure::new(move || hit2.set(true));
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assert!(!hit.get());
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long_lived_call1(&a);
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assert!(hit.get());
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let hit = Rc::new(Cell::new(false));
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{
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let hit = hit.clone();
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let a = Closure::new(move |x| {
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hit.set(true);
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x + 3
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});
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assert_eq!(long_lived_call2(&a), 5);
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}
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assert!(hit.get());
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}
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#[wasm_bindgen_test]
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fn many_arity() {
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many_arity_call1(&Closure::new(|| {}));
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many_arity_call2(&Closure::new(|a| assert_eq!(a, 1)));
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many_arity_call3(&Closure::new(|a, b| assert_eq!((a, b), (1, 2))));
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many_arity_call4(&Closure::new(|a, b, c| assert_eq!((a, b, c), (1, 2, 3))));
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many_arity_call5(&Closure::new(|a, b, c, d| {
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assert_eq!((a, b, c, d), (1, 2, 3, 4))
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}));
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many_arity_call6(&Closure::new(|a, b, c, d, e| {
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assert_eq!((a, b, c, d, e), (1, 2, 3, 4, 5))
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}));
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many_arity_call7(&Closure::new(|a, b, c, d, e, f| {
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assert_eq!((a, b, c, d, e, f), (1, 2, 3, 4, 5, 6))
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}));
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many_arity_call8(&Closure::new(|a, b, c, d, e, f, g| {
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assert_eq!((a, b, c, d, e, f, g), (1, 2, 3, 4, 5, 6, 7))
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}));
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many_arity_call9(&Closure::new(|a, b, c, d, e, f, g, h| {
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assert_eq!((a, b, c, d, e, f, g, h), (1, 2, 3, 4, 5, 6, 7, 8))
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}));
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let s = String::new();
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many_arity_call_mut1(&Closure::once(move || drop(s)));
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let s = String::new();
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many_arity_call_mut2(&Closure::once(move |a| {
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drop(s);
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assert_eq!(a, 1);
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}));
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let s = String::new();
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many_arity_call_mut3(&Closure::once(move |a, b| {
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drop(s);
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assert_eq!((a, b), (1, 2));
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}));
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let s = String::new();
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many_arity_call_mut4(&Closure::once(move |a, b, c| {
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drop(s);
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assert_eq!((a, b, c), (1, 2, 3));
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}));
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let s = String::new();
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many_arity_call_mut5(&Closure::once(move |a, b, c, d| {
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drop(s);
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assert_eq!((a, b, c, d), (1, 2, 3, 4));
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}));
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let s = String::new();
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many_arity_call_mut6(&Closure::once(move |a, b, c, d, e| {
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drop(s);
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assert_eq!((a, b, c, d, e), (1, 2, 3, 4, 5));
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}));
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let s = String::new();
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many_arity_call_mut7(&Closure::once(move |a, b, c, d, e, f| {
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drop(s);
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assert_eq!((a, b, c, d, e, f), (1, 2, 3, 4, 5, 6));
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}));
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let s = String::new();
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many_arity_call_mut8(&Closure::once(move |a, b, c, d, e, f, g| {
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drop(s);
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assert_eq!((a, b, c, d, e, f, g), (1, 2, 3, 4, 5, 6, 7));
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}));
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let s = String::new();
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many_arity_call_mut9(&Closure::once(move |a, b, c, d, e, f, g, h| {
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drop(s);
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assert_eq!((a, b, c, d, e, f, g, h), (1, 2, 3, 4, 5, 6, 7, 8));
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}));
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many_arity_stack1(&(|| {}));
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many_arity_stack2(&(|a| assert_eq!(a, 1)));
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many_arity_stack3(&(|a, b| assert_eq!((a, b), (1, 2))));
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many_arity_stack4(&(|a, b, c| assert_eq!((a, b, c), (1, 2, 3))));
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many_arity_stack5(&(|a, b, c, d| assert_eq!((a, b, c, d), (1, 2, 3, 4))));
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many_arity_stack6(&(|a, b, c, d, e| assert_eq!((a, b, c, d, e), (1, 2, 3, 4, 5))));
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many_arity_stack7(&(|a, b, c, d, e, f| assert_eq!((a, b, c, d, e, f), (1, 2, 3, 4, 5, 6))));
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many_arity_stack8(
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&(|a, b, c, d, e, f, g| assert_eq!((a, b, c, d, e, f, g), (1, 2, 3, 4, 5, 6, 7))),
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);
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many_arity_stack9(
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&(|a, b, c, d, e, f, g, h| assert_eq!((a, b, c, d, e, f, g, h), (1, 2, 3, 4, 5, 6, 7, 8))),
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);
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}
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#[wasm_bindgen_test]
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fn option() {
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let hit = Rc::new(Cell::new(false));
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let hit2 = hit.clone();
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let a = Closure::new(move || hit2.set(true));
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assert!(!hit.get());
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option_call1(Some(&a));
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assert!(hit.get());
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let hit = Rc::new(Cell::new(false));
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{
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let hit = hit.clone();
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let a = Closure::new(move |x| {
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hit.set(true);
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x + 3
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});
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assert_eq!(option_call2(Some(&a)), 5);
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}
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assert!(hit.get());
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assert!(option_call3(None));
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}
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struct Dropper(Rc<Cell<bool>>);
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impl Drop for Dropper {
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fn drop(&mut self) {
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assert!(!self.0.get());
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self.0.set(true);
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}
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}
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#[wasm_bindgen_test]
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fn call_fn_once_twice() {
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let dropped = Rc::new(Cell::new(false));
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let dropper = Dropper(dropped.clone());
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let called = Rc::new(Cell::new(false));
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let c = Closure::once({
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let called = called.clone();
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move || {
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assert!(!called.get());
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called.set(true);
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drop(dropper);
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}
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});
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many_arity_call_mut1(&c);
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assert!(called.get());
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assert!(dropped.get());
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assert!(calling_it_throws(&c));
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}
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#[wasm_bindgen_test]
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fn once_into_js() {
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let dropped = Rc::new(Cell::new(false));
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let dropper = Dropper(dropped.clone());
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let called = Rc::new(Cell::new(false));
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let f = Closure::once_into_js({
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let called = called.clone();
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move || {
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assert!(!called.get());
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called.set(true);
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drop(dropper);
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}
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});
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call_val(&f);
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assert!(called.get());
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assert!(dropped.get());
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assert!(call_val_throws(&f));
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}
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#[wasm_bindgen_test]
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fn long_lived_dropping() {
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let hit = Rc::new(Cell::new(false));
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let hit2 = hit.clone();
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let a = Closure::new(move || hit2.set(true));
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long_lived_dropping_cache(&a);
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assert!(!hit.get());
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assert!(long_lived_dropping_call().is_ok());
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assert!(hit.get());
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drop(a);
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assert!(long_lived_dropping_call().is_err());
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}
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#[wasm_bindgen_test]
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fn long_lived_option_dropping() {
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let hit = Rc::new(Cell::new(false));
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let hit2 = hit.clone();
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let a = Closure::new(move || hit2.set(true));
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assert!(!long_lived_option_dropping_cache(None));
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assert!(long_lived_option_dropping_cache(Some(&a)));
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assert!(!hit.get());
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assert!(long_lived_option_dropping_call().is_ok());
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assert!(hit.get());
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drop(a);
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assert!(long_lived_option_dropping_call().is_err());
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}
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#[wasm_bindgen_test]
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fn long_fnmut_recursive() {
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let a = Closure::new(|| {
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assert!(long_fnmut_recursive_call().is_err());
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});
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long_fnmut_recursive_cache(&a);
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assert!(long_fnmut_recursive_call().is_ok());
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}
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#[wasm_bindgen_test]
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fn fnmut() {
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let mut a = false;
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fnmut_call(&mut || a = true);
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assert!(a);
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let mut x = false;
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assert_eq!(
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fnmut_thread(&mut |a| {
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x = true;
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a + 1
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}),
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3
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);
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assert!(x);
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}
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#[wasm_bindgen_test]
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fn fnmut_bad() {
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let mut x = true;
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let mut hits = 0;
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fnmut_bad_call(&mut || {
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hits += 1;
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if fnmut_bad_again(hits == 1).is_err() {
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return;
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}
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x = false;
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});
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assert_eq!(hits, 1);
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assert!(x);
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assert!(fnmut_bad_again(true).is_err());
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}
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#[wasm_bindgen_test]
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fn string_arguments() {
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let mut x = false;
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string_arguments_call(&mut |s| {
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assert_eq!(s, "foo");
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x = true;
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});
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assert!(x);
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}
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#[wasm_bindgen_test]
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fn string_ret() {
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let mut x = false;
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string_ret_call(&mut |mut s| {
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assert_eq!(s, "foo");
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s.push_str("bar");
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x = true;
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s
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});
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assert!(x);
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}
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#[wasm_bindgen_test]
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fn drop_drops() {
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static mut HIT: bool = false;
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struct A;
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impl Drop for A {
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fn drop(&mut self) {
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unsafe {
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HIT = true;
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}
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}
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}
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let a = A;
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let x: Closure<dyn Fn()> = Closure::new(move || drop(&a));
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drop(x);
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unsafe {
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assert!(HIT);
|
|
}
|
|
}
|
|
|
|
#[wasm_bindgen_test]
|
|
fn drop_during_call_ok() {
|
|
static mut HIT: bool = false;
|
|
struct A;
|
|
impl Drop for A {
|
|
fn drop(&mut self) {
|
|
unsafe {
|
|
HIT = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
let rc = Rc::new(RefCell::new(None));
|
|
let rc2 = rc.clone();
|
|
let x = 3;
|
|
let a = A;
|
|
let x: Closure<dyn Fn()> = Closure::new(move || {
|
|
// "drop ourselves"
|
|
drop(rc2.borrow_mut().take().unwrap());
|
|
|
|
// `A` should not have been destroyed as a result
|
|
unsafe {
|
|
assert!(!HIT);
|
|
}
|
|
|
|
// allocate some heap memory to try to paper over our `3`
|
|
drop(String::from("1234567890"));
|
|
|
|
// make sure our closure memory is still valid
|
|
assert_eq!(x, 3);
|
|
|
|
// make sure `A` is bound to our closure environment.
|
|
drop(&a);
|
|
unsafe {
|
|
assert!(!HIT);
|
|
}
|
|
});
|
|
drop_during_call_save(&x);
|
|
*rc.borrow_mut() = Some(x);
|
|
drop(rc);
|
|
unsafe {
|
|
assert!(!HIT);
|
|
}
|
|
drop_during_call_call();
|
|
unsafe {
|
|
assert!(HIT);
|
|
}
|
|
}
|
|
|
|
#[wasm_bindgen_test]
|
|
fn test_closure_returner() {
|
|
type ClosureType = dyn FnMut() -> BadStruct;
|
|
|
|
use js_sys::{Object, Reflect};
|
|
use wasm_bindgen::JsCast;
|
|
|
|
js_test_closure_returner();
|
|
|
|
#[wasm_bindgen]
|
|
pub struct ClosureHandle(Closure<ClosureType>);
|
|
|
|
#[wasm_bindgen]
|
|
pub struct BadStruct {}
|
|
|
|
#[wasm_bindgen]
|
|
pub fn closure_returner() -> Result<Object, JsValue> {
|
|
let o = Object::new();
|
|
|
|
let some_fn = Closure::wrap(Box::new(move || BadStruct {}) as Box<ClosureType>);
|
|
Reflect::set(
|
|
&o,
|
|
&JsValue::from("someKey"),
|
|
&some_fn.as_ref().unchecked_ref(),
|
|
)
|
|
.unwrap();
|
|
Reflect::set(
|
|
&o,
|
|
&JsValue::from("handle"),
|
|
&JsValue::from(ClosureHandle(some_fn)),
|
|
)
|
|
.unwrap();
|
|
|
|
Ok(o)
|
|
}
|
|
}
|
|
|
|
#[wasm_bindgen]
|
|
pub struct RefFirstArgument {
|
|
contents: u32,
|
|
}
|
|
|
|
#[wasm_bindgen_test]
|
|
fn reference_as_first_argument_builds_at_all() {
|
|
#[wasm_bindgen]
|
|
extern "C" {
|
|
fn ref_first_arg1(a: &dyn Fn(&JsValue));
|
|
fn ref_first_arg2(a: &mut dyn FnMut(&JsValue));
|
|
fn ref_first_arg3(a: &Closure<dyn Fn(&JsValue)>);
|
|
fn ref_first_arg4(a: &Closure<dyn FnMut(&JsValue)>);
|
|
fn ref_first_custom1(a: &dyn Fn(&RefFirstArgument));
|
|
fn ref_first_custom2(a: &mut dyn FnMut(&RefFirstArgument));
|
|
fn ref_first_custom3(a: &Closure<dyn Fn(&RefFirstArgument)>);
|
|
fn ref_first_custom4(a: &Closure<dyn FnMut(&RefFirstArgument)>);
|
|
}
|
|
|
|
Closure::wrap(Box::new(|_: &JsValue| ()) as Box<dyn Fn(&JsValue)>);
|
|
Closure::wrap(Box::new(|_: &JsValue| ()) as Box<dyn FnMut(&JsValue)>);
|
|
Closure::once(|_: &JsValue| ());
|
|
Closure::once_into_js(|_: &JsValue| ());
|
|
Closure::wrap(Box::new(|_: &RefFirstArgument| ()) as Box<dyn Fn(&RefFirstArgument)>);
|
|
Closure::wrap(Box::new(|_: &RefFirstArgument| ()) as Box<dyn FnMut(&RefFirstArgument)>);
|
|
Closure::once(|_: &RefFirstArgument| ());
|
|
Closure::once_into_js(|_: &RefFirstArgument| ());
|
|
}
|
|
|
|
#[wasm_bindgen_test]
|
|
fn reference_as_first_argument_works() {
|
|
let a = Rc::new(Cell::new(0));
|
|
let b = {
|
|
let a = a.clone();
|
|
Closure::once(move |x: &RefFirstArgument| {
|
|
assert_eq!(a.get(), 0);
|
|
assert_eq!(x.contents, 3);
|
|
a.set(a.get() + 1);
|
|
})
|
|
};
|
|
let c = {
|
|
let a = a.clone();
|
|
Closure::once(move |x: &RefFirstArgument| {
|
|
assert_eq!(a.get(), 1);
|
|
assert_eq!(x.contents, 3);
|
|
a.set(a.get() + 1);
|
|
})
|
|
};
|
|
pass_reference_first_arg_twice(RefFirstArgument { contents: 3 }, &b, &c);
|
|
assert_eq!(a.get(), 2);
|
|
}
|
|
|
|
#[wasm_bindgen_test]
|
|
fn reference_as_first_argument_works2() {
|
|
let a = Cell::new(0);
|
|
pass_reference_first_arg_twice2(
|
|
RefFirstArgument { contents: 3 },
|
|
&mut |x: &RefFirstArgument| {
|
|
assert_eq!(a.get(), 0);
|
|
assert_eq!(x.contents, 3);
|
|
a.set(a.get() + 1);
|
|
},
|
|
&mut |x: &RefFirstArgument| {
|
|
assert_eq!(a.get(), 1);
|
|
assert_eq!(x.contents, 3);
|
|
a.set(a.get() + 1);
|
|
},
|
|
);
|
|
assert_eq!(a.get(), 2);
|
|
}
|
|
|
|
#[wasm_bindgen_test]
|
|
fn call_destroyed_doesnt_segfault() {
|
|
struct A(i32, i32);
|
|
impl Drop for A {
|
|
fn drop(&mut self) {
|
|
assert_eq!(self.0, self.1);
|
|
}
|
|
}
|
|
|
|
let a = A(1, 1);
|
|
let a = Closure::wrap(Box::new(move || drop(&a)) as Box<dyn Fn()>);
|
|
let b = a.as_ref().clone();
|
|
drop(a);
|
|
call_destroyed(&b);
|
|
|
|
let a = A(2, 2);
|
|
let a = Closure::wrap(Box::new(move || drop(&a)) as Box<dyn FnMut()>);
|
|
let b = a.as_ref().clone();
|
|
drop(a);
|
|
call_destroyed(&b);
|
|
|
|
let a = A(1, 1);
|
|
let a = Closure::wrap(Box::new(move |_: &JsValue| drop(&a)) as Box<dyn Fn(&JsValue)>);
|
|
let b = a.as_ref().clone();
|
|
drop(a);
|
|
call_destroyed(&b);
|
|
|
|
let a = A(2, 2);
|
|
let a = Closure::wrap(Box::new(move |_: &JsValue| drop(&a)) as Box<dyn FnMut(&JsValue)>);
|
|
let b = a.as_ref().clone();
|
|
drop(a);
|
|
call_destroyed(&b);
|
|
}
|
|
|
|
#[wasm_bindgen_test]
|
|
fn forget_works() {
|
|
let a = Closure::wrap(Box::new(|| {}) as Box<dyn Fn()>);
|
|
js_store_forgotten_closure(&a);
|
|
a.forget();
|
|
js_call_forgotten_closure();
|
|
}
|