Added `clippy::version` attribute to all normal lints

[rust.git] / clippy_lints / src / ref_option_ref.rs

diff --git a/clippy_lints/src/ref_option_ref.rs b/clippy_lints/src/ref_option_ref.rs
index 8cd6692ce03a09ceb9b42647865d101ec3c42771..909d6971a5497305a7937bd7b70984e7ffb729b6 100644 (file)
--- a/clippy_lints/src/ref_option_ref.rs
+++ b/clippy_lints/src/ref_option_ref.rs
@@ -1,23 +1,26 @@
-use crate::utils::{last_path_segment, snippet, span_lint_and_sugg};
+use clippy_utils::diagnostics::span_lint_and_sugg;
+use clippy_utils::last_path_segment;
+use clippy_utils::source::snippet;
+use if_chain::if_chain;
+use rustc_errors::Applicability;
 use rustc_hir::{GenericArg, Mutability, Ty, TyKind};
 use rustc_lint::{LateContext, LateLintPass};
 use rustc_session::{declare_lint_pass, declare_tool_lint};
 use rustc_span::symbol::sym;
 
-use if_chain::if_chain;
-use rustc_errors::Applicability;
-
 declare_clippy_lint! {
-    /// **What it does:** Checks for usage of `&Option<&T>`.
+    /// ### What it does
+    /// Checks for usage of `&Option<&T>`.
     ///
-    /// **Why is this bad?** Since `&` is Copy, it's useless to have a
+    /// ### Why is this bad?
+    /// Since `&` is Copy, it's useless to have a
     /// reference on `Option<&T>`.
     ///
-    /// **Known problems:** It may be irrelevant to use this lint on
+    /// ### Known problems
+    /// It may be irrelevant to use this lint on
     /// public API code as it will make a breaking change to apply it.
     ///
-    /// **Example:**
-    ///
+    /// ### Example
     /// ```rust,ignore
     /// let x: &Option<&u32> = &Some(&0u32);
     /// ```
@@ -25,6 +28,7 @@
     /// ```rust,ignore
     /// let x: Option<&u32> = Some(&0u32);
     /// ```
+    #[clippy::version = "1.49.0"]
     pub REF_OPTION_REF,
     pedantic,
     "use `Option<&T>` instead of `&Option<&T>`"
@@ -42,8 +46,8 @@ fn check_ty(&mut self, cx: &LateContext<'tcx>, ty: &'tcx Ty<'tcx>) {
             if let Some(res) = last.res;
             if let Some(def_id) = res.opt_def_id();
 
-            if cx.tcx.is_diagnostic_item(sym::option_type, def_id);
-            if let Some(ref params) = last_path_segment(qpath).args ;
+            if cx.tcx.is_diagnostic_item(sym::Option, def_id);
+            if let Some(params) = last_path_segment(qpath).args ;
             if !params.parenthesized;
             if let Some(inner_ty) = params.args.iter().find_map(|arg| match arg {
                 GenericArg::Type(inner_ty) => Some(inner_ty),