X-Git-Url: https://git.lizzy.rs/?a=blobdiff_plain;f=clippy_lints%2Fsrc%2Fneedless_update.rs;h=77483bc128082210d825837a18202feed7be9a4e;hb=e5a5b0a0774625eebbe7b29c67b49dc6431544d1;hp=87b92a53dd02ce0da9fba0d1799cc66b8b0d0246;hpb=c6d53ad2c082f6e76f51e1b352d6b7ae3d50bda8;p=rust.git

diff --git a/clippy_lints/src/needless_update.rs b/clippy_lints/src/needless_update.rs
index 87b92a53dd0..77483bc1280 100644
--- a/clippy_lints/src/needless_update.rs
+++ b/clippy_lints/src/needless_update.rs
@@ -1,40 +1,45 @@
+use crate::utils::span_lint;
+use rustc::declare_lint_pass;
+use rustc::hir::{Expr, ExprKind};
 use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::ty;
-use rustc::hir::{Expr, ExprStruct};
-use crate::utils::span_lint;
+use rustc_session::declare_tool_lint;
 
-/// **What it does:** Checks for needlessly including a base struct on update
-/// when all fields are changed anyway.
-///
-/// **Why is this bad?** This will cost resources (because the base has to be
-/// somewhere), and make the code less readable.
-///
-/// **Known problems:** None.
-///
-/// **Example:**
-/// ```rust
-/// Point { x: 1, y: 0, ..zero_point }
-/// ```
 declare_clippy_lint! {
+    /// **What it does:** Checks for needlessly including a base struct on update
+    /// when all fields are changed anyway.
+    ///
+    /// **Why is this bad?** This will cost resources (because the base has to be
+    /// somewhere), and make the code less readable.
+    ///
+    /// **Known problems:** None.
+    ///
+    /// **Example:**
+    /// ```rust
+    /// # struct Point {
+    /// #     x: i32,
+    /// #     y: i32,
+    /// #     z: i32,
+    /// # }
+    /// # let zero_point = Point { x: 0, y: 0, z: 0 };
+    /// Point {
+    ///     x: 1,
+    ///     y: 1,
+    ///     ..zero_point
+    /// };
+    /// ```
     pub NEEDLESS_UPDATE,
     complexity,
     "using `Foo { ..base }` when there are no missing fields"
 }
 
-#[derive(Copy, Clone)]
-pub struct Pass;
-
-impl LintPass for Pass {
-    fn get_lints(&self) -> LintArray {
-        lint_array!(NEEDLESS_UPDATE)
-    }
-}
+declare_lint_pass!(NeedlessUpdate => [NEEDLESS_UPDATE]);
 
-impl<'a, 'tcx> LateLintPass<'a, 'tcx> for Pass {
+impl<'a, 'tcx> LateLintPass<'a, 'tcx> for NeedlessUpdate {
     fn check_expr(&mut self, cx: &LateContext<'a, 'tcx>, expr: &'tcx Expr) {
-        if let ExprStruct(_, ref fields, Some(ref base)) = expr.node {
+        if let ExprKind::Struct(_, ref fields, Some(ref base)) = expr.kind {
             let ty = cx.tables.expr_ty(expr);
-            if let ty::TyAdt(def, _) = ty.sty {
+            if let ty::Adt(def, _) = ty.kind {
                 if fields.len() == def.non_enum_variant().fields.len() {
                     span_lint(
                         cx,