#![feature(plugin_registrar)]
#![feature(rustc_private)]
#![allow(unknown_lints)]
+#![feature(borrow_state)]
extern crate rustc_plugin;
use rustc_plugin::Registry;
extern crate clippy_lints;
-pub use clippy_lints::*;
-
#[plugin_registrar]
pub fn plugin_registrar(reg: &mut Registry) {
- register_plugins(reg);
+ if reg.sess.lint_store.borrow_state() == std::cell::BorrowState::Unused && reg.sess.lint_store.borrow().get_lint_groups().iter().any(|&(s, _, _)| s == "clippy") {
+ reg.sess.struct_warn("running cargo clippy on a crate that also imports the clippy plugin").emit();
+ } else {
+ clippy_lints::register_plugins(reg);
+ }
}
// only exists to let the dogfood integration test works.
// Don't run clippy as an executable directly
-#[allow(dead_code, print_stdout)]
+#[allow(dead_code)]
fn main() {
panic!("Please use the cargo-clippy executable");
}