src/lib.rs

   1 // error-pattern:cargo-clippy
   2 #![feature(plugin_registrar)]
   3 #![feature(rustc_private)]
   4 #![allow(unknown_lints)]
   5 #![feature(borrow_state)]
   6 #![allow(missing_docs_in_private_items)]
   7
   8 extern crate rustc_plugin;
   9 use rustc_plugin::Registry;
  10
  11 extern crate clippy_lints;
  12
  13 #[plugin_registrar]
  14 pub fn plugin_registrar(reg: &mut Registry) {
  15     if reg.sess.lint_store.borrow_state() == std::cell::BorrowState::Unused && reg.sess.lint_store.borrow().get_lint_groups().iter().any(|&(s, _, _)| s == "clippy") {
  16         reg.sess.struct_warn("running cargo clippy on a crate that also imports the clippy plugin").emit();
  17     } else {
  18         clippy_lints::register_plugins(reg);
  19     }
  20 }
  21
  22 // only exists to let the dogfood integration test works.
  23 // Don't run clippy as an executable directly
  24 #[allow(dead_code)]
  25 fn main() {
  26     panic!("Please use the cargo-clippy executable");
  27 }