forked from mirrors/gecko-dev
7512d04e93
> Here it is. > > ~~There's two major things that are unfinished here:~~ > - ~~Dealing with the unroot_must_root lint. I'm not sure about the value of this lint with the new rooting API.~~ Done. > - ~~Updating the Cargo.locks to point to the new SM and SM binding.~~ Done. > > I also included my fixes for the rust update, but these will disappear in a rebase. A rust update is necessary to support calling `Drop` on `Heap<T>` correctly when `Heap<T>` is inside a `Rc<T>`. Otherwise `&self` points to the wrong location. > > Incremental GC is disabled here. I'm not sure how to deal with the incremental barriers so that's left for later. > > Generational GC works. SM doesn't work without it. > > The biggest change here is to the rooting API. `Root` was made movable, and `Temporary` and `JSRef` was removed. Movable `Root`s means there's no need for `Temporary`, and `JSRef`s aren't needed generally since it can be assumed that being able to obtain a reference to a dom object means it's already rooted. References have their lifetime bound to the Roots that provided them. DOM objects that haven't passed through `reflect_dom_object` don't need to be rooted, and DOM objects that have passed through `reflect_dom_object` can't be obtained without being rooted through `native_from_reflector_jsmanaged` or `JS::<T>::root()`. > > Support for `Heap<T>` ended up messier than I expected. It's split into two commits, but only because it's a bit difficult to fold them together. Supporting `Heap<T>` properly requires that that `Heap::<T>::set()` be called on something that won't move. I removed the Copy and Clone trait from `Heap<T>` so `Cell` can't hold `Heap<T>` - only `UnsafeCell` can hold it. > > `CallbackObject` is a bit tricky - I moved all callbacks into `Rc<T>` in order to make sure that the pointer inside to a `*mut JSObject` doesn't move. This is necessary for supporting `Heap<T>`. > > `RootedCollectionSet` is very general purpose now. Anything with `JSTraceable` can be rooted by `RootedCollectionSet`/`RootedTraceable`. Right now, `RootedTraceable` is only used to hold down dom objects before they're fully attached to their reflector. I had to make a custom mechanism to dispatch the trace call - couldn't figure out how to get trait objects working for this case. > > This has been tested with the following zeal settings: > > GC after every allocation > JS_GC_ZEAL=2,1 > > GC after every 100 allocations (important for catching use-after-free bugs) > JS_GC_ZEAL=2,100 > > Verify pre barriers > JS_GC_ZEAL=4,1 > > Verify post barriers > JS_GC_ZEAL=11,1 Source-Repo: https://github.com/servo/servo Source-Revision: e7808c526c348fea5e3b48af70b7f1a066652097
81 lines
1.6 KiB
Rust
81 lines
1.6 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#![feature(alloc)]
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#![feature(box_syntax)]
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#![feature(collections)]
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#![feature(core)]
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#![feature(custom_attribute)]
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#![feature(plugin)]
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#![feature(std_misc)]
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#![deny(unsafe_code)]
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#![allow(non_snake_case)]
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#![doc="The script crate contains all matters DOM."]
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#![plugin(string_cache_plugin)]
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#![plugin(plugins)]
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#[macro_use]
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extern crate log;
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#[macro_use] extern crate bitflags;
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extern crate core;
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extern crate devtools_traits;
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extern crate cssparser;
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extern crate euclid;
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extern crate html5ever;
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extern crate encoding;
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extern crate fnv;
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extern crate hyper;
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extern crate js;
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extern crate libc;
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extern crate msg;
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extern crate net_traits;
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extern crate num;
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extern crate png;
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extern crate rustc_serialize;
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extern crate time;
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extern crate canvas;
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extern crate canvas_traits;
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extern crate profile_traits;
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extern crate script_traits;
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extern crate selectors;
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extern crate smallvec;
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extern crate util;
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extern crate websocket;
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#[macro_use]
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extern crate style;
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extern crate unicase;
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extern crate url;
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extern crate uuid;
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extern crate string_cache;
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extern crate offscreen_gl_context;
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pub mod cors;
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pub mod document_loader;
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#[macro_use]
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pub mod dom;
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pub mod parse;
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pub mod layout_interface;
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mod network_listener;
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pub mod page;
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pub mod script_task;
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mod timers;
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pub mod textinput;
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pub mod clipboard_provider;
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mod devtools;
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mod horribly_inefficient_timers;
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mod webdriver_handlers;
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#[allow(unsafe_code)]
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pub fn init() {
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unsafe {
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js::jsapi::JS_Init();
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}
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}
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