X-Git-Url: https://git.lizzy.rs/?a=blobdiff_plain;f=clippy_lints%2Fsrc%2Fdefault_trait_access.rs;h=e7c90f041889a591627fc3053f295428397ec167;hb=dc164f4c46d666822a87db250ec43e2862356d93;hp=09c607600767bfad5d818444e316bb8754a96165;hpb=d3f78d64bd024cb793743d76da1c53f538b895d7;p=rust.git

diff --git a/clippy_lints/src/default_trait_access.rs b/clippy_lints/src/default_trait_access.rs
index 09c60760076..e7c90f04188 100644
--- a/clippy_lints/src/default_trait_access.rs
+++ b/clippy_lints/src/default_trait_access.rs
@@ -1,6 +1,6 @@
 use rustc::hir::*;
 use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
-use rustc::{declare_lint, lint_array};
+use rustc::{declare_tool_lint, lint_array};
 use if_chain::if_chain;
 use rustc::ty::TyKind;
 
@@ -48,6 +48,17 @@ fn check_expr(&mut self, cx: &LateContext<'a, 'tcx>, expr: &'tcx Expr) {
             then {
                 match qpath {
                     QPath::Resolved(..) => {
+                        if_chain! {
+                            // Detect and ignore <Foo as Default>::default() because these calls do
+                            // explicitly name the type.
+                            if let ExprKind::Call(ref method, ref _args) = expr.node;
+                            if let ExprKind::Path(ref p) = method.node;
+                            if let QPath::Resolved(Some(_ty), _path) = p;
+                            then {
+                                return;
+                            }
+                        }
+
                         // TODO: Work out a way to put "whatever the imported way of referencing
                         // this type in this file" rather than a fully-qualified type.
                         let expr_ty = cx.tables.expr_ty(expr);