mirror of
https://github.com/servo/servo.git
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6fb7a8cdc7
Switch from webidl to weedle in script_plugins This removes the dependency on lalrpop and should speed up compilation quite a bit. <!-- Reviewable:start --> --- This change is [<img src="https://reviewable.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/servo/23405) <!-- Reviewable:end -->
103 lines
2.6 KiB
Rust
103 lines
2.6 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 https://mozilla.org/MPL/2.0/. */
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//! Servo's compiler plugin/macro crate
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//!
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//! Attributes this crate provides:
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//!
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//! - `#[derive(DenyPublicFields)]` : Forces all fields in a struct/enum to be private
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//! - `#[derive(JSTraceable)]` : Auto-derives an implementation of `JSTraceable` for a struct in the script crate
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//! - `#[must_root]` : Prevents data of the marked type from being used on the stack.
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//! See the lints module for more details
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//! - `#[dom_struct]` : Implies #[derive(JSTraceable, DenyPublicFields)]`, and `#[must_root]`.
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//! Use this for structs that correspond to a DOM type
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#![deny(unsafe_code)]
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#![feature(plugin)]
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#![feature(plugin_registrar)]
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#![feature(rustc_private)]
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#[cfg(feature = "unrooted_must_root_lint")]
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#[macro_use]
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extern crate rustc;
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extern crate rustc_plugin;
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extern crate syntax;
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extern crate weedle;
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use rustc_plugin::Registry;
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use syntax::feature_gate::AttributeType::Whitelisted;
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use syntax::symbol::Symbol;
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#[cfg(feature = "unrooted_must_root_lint")]
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mod unrooted_must_root;
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#[cfg(feature = "webidl_lint")]
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mod webidl_must_inherit;
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/// Utilities for writing plugins
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#[cfg(feature = "unrooted_must_root_lint")]
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mod utils;
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#[plugin_registrar]
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pub fn plugin_registrar(reg: &mut Registry) {
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let symbols = crate::Symbols::new();
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#[cfg(feature = "unrooted_must_root_lint")]
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reg.register_late_lint_pass(Box::new(unrooted_must_root::UnrootedPass::new(
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symbols.clone(),
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)));
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#[cfg(feature = "webidl_lint")]
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reg.register_late_lint_pass(Box::new(webidl_must_inherit::WebIdlPass::new(
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symbols.clone(),
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)));
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reg.register_attribute(symbols.allow_unrooted_interior, Whitelisted);
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reg.register_attribute(symbols.allow_unrooted_in_rc, Whitelisted);
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reg.register_attribute(symbols.must_root, Whitelisted);
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reg.register_attribute(symbols.webidl, Whitelisted);
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}
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macro_rules! symbols {
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($($s: ident)+) => {
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#[derive(Clone)]
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#[allow(non_snake_case)]
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struct Symbols {
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$( $s: Symbol, )+
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}
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impl Symbols {
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fn new() -> Self {
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Symbols {
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$( $s: Symbol::intern(stringify!($s)), )+
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}
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}
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}
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}
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}
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symbols! {
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allow_unrooted_interior
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allow_unrooted_in_rc
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must_root
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webidl
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alloc
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rc
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Rc
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cell
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Ref
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RefMut
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slice
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Iter
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IterMut
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collections
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hash
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map
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set
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Entry
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OccupiedEntry
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VacantEntry
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}
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