1 #![deny(clippy::internal)]
2 #![allow(clippy::missing_clippy_version_attribute)]
3 #![feature(rustc_private)]
5 extern crate clippy_utils;
6 extern crate rustc_hir;
7 extern crate rustc_lint;
8 extern crate rustc_middle;
11 extern crate rustc_session;
12 use clippy_utils::{paths, ty::match_type};
14 use rustc_lint::{LateContext, LateLintPass};
15 use rustc_middle::ty::Ty;
23 declare_lint_pass!(Pass => [TEST_LINT]);
25 static OPTION: [&str; 3] = ["core", "option", "Option"];
27 impl<'tcx> LateLintPass<'tcx> for Pass {
28 fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &'tcx Expr) {
29 let ty = cx.typeck_results().expr_ty(expr);
31 let _ = match_type(cx, ty, &OPTION);
32 let _ = match_type(cx, ty, &["core", "result", "Result"]);
34 let rc_path = &["alloc", "rc", "Rc"];
35 let _ = clippy_utils::ty::match_type(cx, ty, rc_path);