Auto merge of #3946 - rchaser53:issue-3920, r=flip1995

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

diff --git a/clippy_lints/src/default_trait_access.rs b/clippy_lints/src/default_trait_access.rs
index c4b39dc0f0adfd6664ee7d4d82311c9a39814659..247dff7560999113da19591b5586a5caa5803bdc 100644 (file)
--- a/clippy_lints/src/default_trait_access.rs
+++ b/clippy_lints/src/default_trait_access.rs
@@ -5,24 +5,24 @@
 use rustc::{declare_tool_lint, lint_array};
 use rustc_errors::Applicability;
 
-use crate::utils::{any_parent_is_automatically_derived, match_def_path, opt_def_id, paths, span_lint_and_sugg};
+use crate::utils::{any_parent_is_automatically_derived, match_def_path, paths, span_lint_and_sugg};
 
-/// **What it does:** Checks for literal calls to `Default::default()`.
-///
-/// **Why is this bad?** It's more clear to the reader to use the name of the type whose default is
-/// being gotten than the generic `Default`.
-///
-/// **Known problems:** None.
-///
-/// **Example:**
-/// ```rust
-/// // Bad
-/// let s: String = Default::default();
-///
-/// // Good
-/// let s = String::default();
-/// ```
 declare_clippy_lint! {
+    /// **What it does:** Checks for literal calls to `Default::default()`.
+    ///
+    /// **Why is this bad?** It's more clear to the reader to use the name of the type whose default is
+    /// being gotten than the generic `Default`.
+    ///
+    /// **Known problems:** None.
+    ///
+    /// **Example:**
+    /// ```rust
+    /// // Bad
+    /// let s: String = Default::default();
+    ///
+    /// // Good
+    /// let s = String::default();
+    /// ```
     pub DEFAULT_TRAIT_ACCESS,
     pedantic,
     "checks for literal calls to Default::default()"
@@ -35,15 +35,19 @@ impl LintPass for DefaultTraitAccess {
     fn get_lints(&self) -> LintArray {
         lint_array!(DEFAULT_TRAIT_ACCESS)
     }
+
+    fn name(&self) -> &'static str {
+        "DefaultTraitAccess"
+    }
 }
 
 impl<'a, 'tcx> LateLintPass<'a, 'tcx> for DefaultTraitAccess {
     fn check_expr(&mut self, cx: &LateContext<'a, 'tcx>, expr: &'tcx Expr) {
         if_chain! {
             if let ExprKind::Call(ref path, ..) = expr.node;
-            if !any_parent_is_automatically_derived(cx.tcx, expr.id);
+            if !any_parent_is_automatically_derived(cx.tcx, expr.hir_id);
             if let ExprKind::Path(ref qpath) = path.node;
-            if let Some(def_id) = opt_def_id(cx.tables.qpath_def(qpath, path.hir_id));
+            if let Some(def_id) = cx.tables.qpath_def(qpath, path.hir_id).opt_def_id();
             if match_def_path(cx.tcx, def_id, &paths::DEFAULT_TRAIT_METHOD);
             then {
                 match qpath {