src/test/ui-fulldeps/auxiliary/lint-group-plugin-test.rs

   1 // force-host
   2
   3 #![feature(plugin_registrar)]
   4 #![feature(box_syntax, rustc_private)]
   5
   6 // Load rustc as a plugin to get macros.
   7 #[macro_use] extern crate rustc;
   8 #[macro_use] extern crate rustc_session;
   9 extern crate rustc_driver;
  10
  11 use rustc::hir;
  12 use rustc::lint::{LateContext, LintContext, LintPass, LateLintPass, LintArray, LintId};
  13 use rustc_driver::plugin::Registry;
  14
  15 declare_lint!(TEST_LINT, Warn, "Warn about items named 'lintme'");
  16
  17 declare_lint!(PLEASE_LINT, Warn, "Warn about items named 'pleaselintme'");
  18
  19 declare_lint_pass!(Pass => [TEST_LINT, PLEASE_LINT]);
  20
  21 impl<'a, 'tcx> LateLintPass<'a, 'tcx> for Pass {
  22     fn check_item(&mut self, cx: &LateContext, it: &hir::Item) {
  23         match &*it.ident.as_str() {
  24             "lintme" => cx.span_lint(TEST_LINT, it.span, "item is named 'lintme'"),
  25             "pleaselintme" => cx.span_lint(PLEASE_LINT, it.span, "item is named 'pleaselintme'"),
  26             _ => {}
  27         }
  28     }
  29 }
  30
  31 #[plugin_registrar]
  32 pub fn plugin_registrar(reg: &mut Registry) {
  33     reg.lint_store.register_lints(&[&TEST_LINT, &PLEASE_LINT]);
  34     reg.lint_store.register_late_pass(|| box Pass);
  35     reg.lint_store.register_group(true, "lint_me", None,
  36         vec![LintId::of(&TEST_LINT), LintId::of(&PLEASE_LINT)]);
  37 }