fallout

[rust.git] / src / lib.rs

diff --git a/src/lib.rs b/src/lib.rs
index f9a6588e9043c51b9f387c79f67d356a1f231ae8..9e83a96fee689e085ef0f66519d4cea6197d22c5 100644 (file)
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,63 +1,26 @@
 // error-pattern:cargo-clippy
-#![feature(type_macros)]
-#![feature(plugin_registrar, box_syntax)]
-#![feature(rustc_private, collections)]
-#![feature(custom_attribute)]
-#![feature(slice_patterns)]
-#![feature(question_mark)]
-#![feature(stmt_expr_attributes)]
-#![allow(indexing_slicing, shadow_reuse, unknown_lints)]
-
-#[macro_use]
-extern crate syntax;
-#[macro_use]
-extern crate rustc;
-
-extern crate toml;
-
-// Only for the compile time checking of paths
-extern crate core;
-extern crate collections;
-
-// for unicode nfc normalization
-extern crate unicode_normalization;
-
-// for semver check in attrs.rs
-extern crate semver;
-
-// for regex checking
-extern crate regex_syntax;
-
-// for finding minimal boolean expressions
-extern crate quine_mc_cluskey;
+#![feature(plugin_registrar)]
+#![feature(rustc_private)]
+#![allow(unknown_lints)]
+#![feature(borrow_state)]
 
 extern crate rustc_plugin;
-extern crate rustc_const_eval;
-extern crate rustc_const_math;
 use rustc_plugin::Registry;
 
 extern crate clippy_lints;
 
-pub use clippy_lints::*;
-
-macro_rules! declare_restriction_lint {
-    { pub $name:tt, $description:tt } => {
-        declare_lint! { pub $name, Allow, $description }
-    };
-}
-
-mod reexport {
-    pub use syntax::ast::{Name, NodeId};
-}
-
 #[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");
 }