src/lib.rs

   1 // error-pattern:cargo-clippy
   2 #![feature(plugin_registrar)]
   3 #![feature(rustc_private)]
   4 #![allow(unknown_lints)]
   5 #![allow(missing_docs_in_private_items)]
   6
   7 extern crate rustc_plugin;
   8 use rustc_plugin::Registry;
   9
  10 extern crate clippy_lints;
  11
  12 #[plugin_registrar]
  13 pub fn plugin_registrar(reg: &mut Registry) {
  14     if let Ok(lint_store) = reg.sess.lint_store.try_borrow() {
  15         if lint_store
  16                .get_lint_groups()
  17                .iter()
  18                .any(|&(s, _, _)| s == "clippy") {
  19             reg.sess
  20                 .struct_warn("running cargo clippy on a crate that also imports the clippy plugin")
  21                 .emit();
  22             return;
  23         }
  24     }
  25
  26     clippy_lints::register_plugins(reg);
  27 }
  28
  29 // only exists to let the dogfood integration test works.
  30 // Don't run clippy as an executable directly
  31 #[allow(dead_code)]
  32 fn main() {
  33     panic!("Please use the cargo-clippy executable");
  34 }