| // Copyright 2014 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. |
| |
| // force-host |
| |
| #![feature(plugin_registrar)] |
| #![feature(box_syntax, rustc_private)] |
| |
| extern crate syntax; |
| |
| // Load rustc as a plugin to get macros |
| #[macro_use] |
| extern crate rustc; |
| extern crate rustc_plugin; |
| |
| use rustc::lint::{EarlyContext, LintContext, LintPass, EarlyLintPass, |
| EarlyLintPassObject, LintArray}; |
| use rustc_plugin::Registry; |
| use syntax::ast; |
| declare_lint!(TEST_LINT, Warn, "Warn about items named 'lintme'"); |
| |
| struct Pass; |
| |
| impl LintPass for Pass { |
| fn get_lints(&self) -> LintArray { |
| lint_array!(TEST_LINT) |
| } |
| } |
| |
| impl EarlyLintPass for Pass { |
| fn check_item(&mut self, cx: &EarlyContext, it: &ast::Item) { |
| if it.ident.name.as_str() == "lintme" { |
| cx.span_lint(TEST_LINT, it.span, "item is named 'lintme'"); |
| } |
| } |
| } |
| |
| #[plugin_registrar] |
| pub fn plugin_registrar(reg: &mut Registry) { |
| reg.register_early_lint_pass(box Pass as EarlyLintPassObject); |
| } |