| // force-host |
| |
| #![feature(plugin_registrar)] |
| #![feature(box_syntax, rustc_private)] |
| |
| extern crate rustc_ast; |
| |
| // Load rustc as a plugin to get macros |
| extern crate rustc_driver; |
| #[macro_use] |
| extern crate rustc_lint; |
| #[macro_use] |
| extern crate rustc_session; |
| |
| use rustc_driver::plugin::Registry; |
| use rustc_lint::{EarlyContext, EarlyLintPass, LintArray, LintContext, LintPass}; |
| use rustc_ast::ast; |
| declare_lint!(TEST_LINT, Warn, "Warn about items named 'lintme'"); |
| |
| declare_lint_pass!(Pass => [TEST_LINT]); |
| |
| impl EarlyLintPass for Pass { |
| fn check_item(&mut self, cx: &EarlyContext, it: &ast::Item) { |
| if it.ident.name.as_str() == "lintme" { |
| cx.lint(TEST_LINT, |lint| { |
| lint.build("item is named 'lintme'").set_span(it.span).emit() |
| }); |
| } |
| } |
| } |
| |
| #[plugin_registrar] |
| pub fn plugin_registrar(reg: &mut Registry) { |
| reg.lint_store.register_lints(&[&TEST_LINT]); |
| reg.lint_store.register_early_pass(|| box Pass); |
| } |