| // force-host |
| |
| #![feature(plugin_registrar)] |
| #![feature(box_syntax, rustc_private)] |
| |
| // Load rustc as a plugin to get macros. |
| #[macro_use] |
| extern crate rustc; |
| extern crate rustc_plugin; |
| |
| use rustc::hir; |
| use rustc::lint::{LateContext, LintContext, LintPass, LateLintPass, LateLintPassObject, LintArray}; |
| use rustc_plugin::Registry; |
| |
| declare_lint!(TEST_LINT, Warn, "Warn about items named 'lintme'"); |
| |
| declare_lint!(PLEASE_LINT, Warn, "Warn about items named 'pleaselintme'"); |
| |
| struct Pass; |
| |
| impl LintPass for Pass { |
| fn get_lints(&self) -> LintArray { |
| lint_array!(TEST_LINT, PLEASE_LINT) |
| } |
| } |
| |
| impl<'a, 'tcx> LateLintPass<'a, 'tcx> for Pass { |
| fn check_item(&mut self, cx: &LateContext, it: &hir::Item) { |
| match &*it.ident.as_str() { |
| "lintme" => cx.span_lint(TEST_LINT, it.span, "item is named 'lintme'"), |
| "pleaselintme" => cx.span_lint(PLEASE_LINT, it.span, "item is named 'pleaselintme'"), |
| _ => {} |
| } |
| } |
| } |
| |
| #[plugin_registrar] |
| pub fn plugin_registrar(reg: &mut Registry) { |
| reg.register_late_lint_pass(box Pass); |
| reg.register_lint_group("lint_me", None, vec![TEST_LINT, PLEASE_LINT]); |
| } |