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1 | // Copyright 2014 The Rust Project Developers. See the COPYRIGHT |
2 | // file at the top-level directory of this distribution and at | |
3 | // http://rust-lang.org/COPYRIGHT. | |
4 | // | |
5 | // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or | |
6 | // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license | |
7 | // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your | |
8 | // option. This file may not be copied, modified, or distributed | |
9 | // except according to those terms. | |
10 | ||
11 | // force-host | |
12 | ||
13 | #![feature(plugin_registrar)] | |
c34b1796 | 14 | #![feature(box_syntax, rustc_private)] |
94b46f34 | 15 | #![feature(macro_at_most_once_rep)] |
1a4d82fc | 16 | |
b039eaaf | 17 | extern crate syntax; |
1a4d82fc JJ |
18 | |
19 | // Load rustc as a plugin to get macros | |
20 | #[macro_use] | |
21 | extern crate rustc; | |
92a42be0 | 22 | extern crate rustc_plugin; |
1a4d82fc | 23 | |
b039eaaf SL |
24 | use rustc::lint::{EarlyContext, LintContext, LintPass, EarlyLintPass, |
25 | EarlyLintPassObject, LintArray}; | |
92a42be0 | 26 | use rustc_plugin::Registry; |
b039eaaf | 27 | use syntax::ast; |
1a4d82fc JJ |
28 | declare_lint!(TEST_LINT, Warn, "Warn about items named 'lintme'"); |
29 | ||
30 | struct Pass; | |
31 | ||
32 | impl LintPass for Pass { | |
33 | fn get_lints(&self) -> LintArray { | |
34 | lint_array!(TEST_LINT) | |
35 | } | |
b039eaaf | 36 | } |
1a4d82fc | 37 | |
b039eaaf SL |
38 | impl EarlyLintPass for Pass { |
39 | fn check_item(&mut self, cx: &EarlyContext, it: &ast::Item) { | |
476ff2be | 40 | if it.ident.name == "lintme" { |
1a4d82fc JJ |
41 | cx.span_lint(TEST_LINT, it.span, "item is named 'lintme'"); |
42 | } | |
43 | } | |
44 | } | |
45 | ||
46 | #[plugin_registrar] | |
47 | pub fn plugin_registrar(reg: &mut Registry) { | |
b039eaaf | 48 | reg.register_early_lint_pass(box Pass as EarlyLintPassObject); |
1a4d82fc | 49 | } |