| // Copyright 2016 The Rust Project Developers. See the COPYRIGHT |
| // file at the top-level directory of this distribution and at |
| // http://rust-lang.org/COPYRIGHT. |
| // |
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| // option. This file may not be copied, modified, or distributed |
| // except according to those terms. |
| |
| #![feature(box_syntax, plugin, plugin_registrar, rustc_private)] |
| #![feature(macro_vis_matcher)] |
| #![feature(macro_at_most_once_rep)] |
| #![crate_type = "dylib"] |
| |
| #[macro_use] |
| extern crate rustc; |
| extern crate rustc_plugin; |
| extern crate syntax; |
| |
| use rustc_plugin::Registry; |
| use syntax::attr; |
| use syntax::ext::base::*; |
| use syntax::feature_gate::AttributeType::Whitelisted; |
| use syntax::symbol::Symbol; |
| |
| use rustc::hir; |
| use rustc::hir::intravisit; |
| use rustc::hir::map as hir_map; |
| use rustc::lint::{LateContext, LintPass, LintArray, LateLintPass, LintContext}; |
| use rustc::ty; |
| use syntax::{ast, codemap}; |
| |
| #[plugin_registrar] |
| pub fn plugin_registrar(reg: &mut Registry) { |
| reg.register_late_lint_pass(box MissingWhitelistedAttrPass); |
| reg.register_attribute("whitelisted_attr".to_string(), Whitelisted); |
| } |
| |
| declare_lint!(MISSING_WHITELISTED_ATTR, Deny, |
| "Checks for missing `whitelisted_attr` attribute"); |
| |
| struct MissingWhitelistedAttrPass; |
| |
| impl LintPass for MissingWhitelistedAttrPass { |
| fn get_lints(&self) -> LintArray { |
| lint_array!(MISSING_WHITELISTED_ATTR) |
| } |
| } |
| |
| impl<'a, 'tcx> LateLintPass<'a, 'tcx> for MissingWhitelistedAttrPass { |
| fn check_fn(&mut self, |
| cx: &LateContext<'a, 'tcx>, |
| _: intravisit::FnKind<'tcx>, |
| _: &'tcx hir::FnDecl, |
| _: &'tcx hir::Body, |
| span: codemap::Span, |
| id: ast::NodeId) { |
| |
| let item = match cx.tcx.hir.get(id) { |
| hir_map::Node::NodeItem(item) => item, |
| _ => cx.tcx.hir.expect_item(cx.tcx.hir.get_parent(id)), |
| }; |
| |
| if !attr::contains_name(&item.attrs, "whitelisted_attr") { |
| cx.span_lint(MISSING_WHITELISTED_ATTR, span, |
| "Missing 'whitelisted_attr' attribute"); |
| } |
| } |
| } |