From 357a8f03445e9719039cb846ffb080303eba21f8 Mon Sep 17 00:00:00 2001 From: Anthony Huang Date: Fri, 25 Jun 2021 16:34:45 -0400 Subject: [PATCH 1/2] Add redundant_method_names lint --- CHANGELOG.md | 1 + clippy_lints/src/lib.rs | 6 ++ clippy_lints/src/self_named_constructor.rs | 91 +++++++++++++++++++ tests/ui/crashes/ice-6179.rs | 2 +- tests/ui/issue_4266.rs | 4 +- tests/ui/missing-doc-impl.rs | 4 +- tests/ui/missing-doc-impl.stderr | 12 ++- .../ui/missing_const_for_fn/cant_be_const.rs | 2 +- .../could_be_const.stderr | 2 +- tests/ui/needless_bool/fixable.fixed | 3 +- tests/ui/needless_bool/fixable.rs | 3 +- tests/ui/needless_bool/fixable.stderr | 24 ++--- tests/ui/self_named_constructor.rs | 59 ++++++++++++ tests/ui/self_named_constructor.stderr | 12 +++ tests/ui/unit_arg.rs | 3 +- tests/ui/unit_arg.stderr | 20 ++-- tests/ui/use_self.fixed | 7 +- tests/ui/use_self.rs | 7 +- tests/ui/use_self.stderr | 56 ++++++------ 19 files changed, 253 insertions(+), 65 deletions(-) create mode 100644 clippy_lints/src/self_named_constructor.rs create mode 100644 tests/ui/self_named_constructor.rs create mode 100644 tests/ui/self_named_constructor.stderr diff --git a/CHANGELOG.md b/CHANGELOG.md index ad3722d4d0bd..1cc49774ec35 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -2772,6 +2772,7 @@ Released 2018-09-13 [`same_item_push`]: https://rust-lang.github.io/rust-clippy/master/index.html#same_item_push [`search_is_some`]: https://rust-lang.github.io/rust-clippy/master/index.html#search_is_some [`self_assignment`]: https://rust-lang.github.io/rust-clippy/master/index.html#self_assignment +[`self_named_constructor`]: https://rust-lang.github.io/rust-clippy/master/index.html#self_named_constructor [`semicolon_if_nothing_returned`]: https://rust-lang.github.io/rust-clippy/master/index.html#semicolon_if_nothing_returned [`serde_api_misuse`]: https://rust-lang.github.io/rust-clippy/master/index.html#serde_api_misuse [`shadow_reuse`]: https://rust-lang.github.io/rust-clippy/master/index.html#shadow_reuse diff --git a/clippy_lints/src/lib.rs b/clippy_lints/src/lib.rs index 82519a9b5b73..7889a571eadd 100644 --- a/clippy_lints/src/lib.rs +++ b/clippy_lints/src/lib.rs @@ -330,6 +330,7 @@ mod regex; mod repeat_once; mod returns; mod self_assignment; +mod self_named_constructor; mod semicolon_if_nothing_returned; mod serde_api; mod shadow; @@ -900,6 +901,7 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf: returns::LET_AND_RETURN, returns::NEEDLESS_RETURN, self_assignment::SELF_ASSIGNMENT, + self_named_constructor::SELF_NAMED_CONSTRUCTOR, semicolon_if_nothing_returned::SEMICOLON_IF_NOTHING_RETURNED, serde_api::SERDE_API_MISUSE, shadow::SHADOW_REUSE, @@ -1406,6 +1408,7 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf: LintId::of(returns::LET_AND_RETURN), LintId::of(returns::NEEDLESS_RETURN), LintId::of(self_assignment::SELF_ASSIGNMENT), + LintId::of(self_named_constructor::SELF_NAMED_CONSTRUCTOR), LintId::of(serde_api::SERDE_API_MISUSE), LintId::of(single_component_path_imports::SINGLE_COMPONENT_PATH_IMPORTS), LintId::of(size_of_in_element_count::SIZE_OF_IN_ELEMENT_COUNT), @@ -1559,6 +1562,7 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf: LintId::of(redundant_static_lifetimes::REDUNDANT_STATIC_LIFETIMES), LintId::of(returns::LET_AND_RETURN), LintId::of(returns::NEEDLESS_RETURN), + LintId::of(self_named_constructor::SELF_NAMED_CONSTRUCTOR), LintId::of(single_component_path_imports::SINGLE_COMPONENT_PATH_IMPORTS), LintId::of(tabs_in_doc_comments::TABS_IN_DOC_COMMENTS), LintId::of(to_digit_is_some::TO_DIGIT_IS_SOME), @@ -2101,6 +2105,8 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf: let scripts = conf.allowed_scripts.clone(); store.register_early_pass(move || box disallowed_script_idents::DisallowedScriptIdents::new(&scripts)); store.register_late_pass(|| box strlen_on_c_strings::StrlenOnCStrings); + store.register_late_pass(move || box self_named_constructor::SelfNamedConstructor); + } #[rustfmt::skip] diff --git a/clippy_lints/src/self_named_constructor.rs b/clippy_lints/src/self_named_constructor.rs new file mode 100644 index 000000000000..da991e1d90c8 --- /dev/null +++ b/clippy_lints/src/self_named_constructor.rs @@ -0,0 +1,91 @@ +use clippy_utils::diagnostics::span_lint; +use clippy_utils::return_ty; +use clippy_utils::ty::{contains_adt_constructor, contains_ty}; +use rustc_hir::{Impl, ImplItem, ImplItemKind, ItemKind, Node}; +use rustc_lint::{LateContext, LateLintPass}; +use rustc_session::{declare_lint_pass, declare_tool_lint}; + +declare_clippy_lint! { + /// **What it does:** Warns when constructors have the same name as their types. + /// + /// **Why is this bad?** Repeating the name of the type is redundant. + /// + /// **Known problems:** None. + /// + /// **Example:** + /// + /// ```rust,ignore + /// struct Foo {} + /// + /// impl Foo { + /// pub fn foo() -> Foo { + /// Foo {} + /// } + /// } + /// ``` + /// Use instead: + /// ```rust,ignore + /// struct Foo {} + /// + /// impl Foo { + /// pub fn new() -> Foo { + /// Foo {} + /// } + /// } + /// ``` + pub SELF_NAMED_CONSTRUCTOR, + style, + "method should not have the same name as the type it is implemented for" +} + +declare_lint_pass!(SelfNamedConstructor => [SELF_NAMED_CONSTRUCTOR]); + +impl<'tcx> LateLintPass<'tcx> for SelfNamedConstructor { + fn check_impl_item(&mut self, cx: &LateContext<'tcx>, impl_item: &'tcx ImplItem<'_>) { + match impl_item.kind { + ImplItemKind::Fn(ref sig, _) => { + if sig.decl.implicit_self.has_implicit_self() { + return; + } + }, + _ => return, + } + + let parent = cx.tcx.hir().get_parent_item(impl_item.hir_id()); + let item = cx.tcx.hir().expect_item(parent); + let self_ty = cx.tcx.type_of(item.def_id); + let ret_ty = return_ty(cx, impl_item.hir_id()); + + // Do not check trait impls + if matches!(item.kind, ItemKind::Impl(Impl { of_trait: Some(_), .. })) { + return; + } + + // Ensure method is constructor-like + if let Some(self_adt) = self_ty.ty_adt_def() { + if !contains_adt_constructor(ret_ty, self_adt) { + return; + } + } else if !contains_ty(ret_ty, self_ty) { + return; + } + + if_chain! { + if let Some(self_def) = self_ty.ty_adt_def(); + if let Some(self_local_did) = self_def.did.as_local(); + let self_id = cx.tcx.hir().local_def_id_to_hir_id(self_local_did); + if let Some(Node::Item(x)) = cx.tcx.hir().find(self_id); + let type_name = x.ident.name.as_str().to_lowercase(); + if impl_item.ident.name.as_str() == type_name || impl_item.ident.name.as_str().replace("_", "") == type_name; + + then { + span_lint( + cx, + SELF_NAMED_CONSTRUCTOR, + impl_item.span, + &format!("constructor `{}` has the same name as the type", impl_item.ident.name), + ); + } + } + } +} diff --git a/tests/ui/crashes/ice-6179.rs b/tests/ui/crashes/ice-6179.rs index f8c866a49aa2..8d9a1af8ff11 100644 --- a/tests/ui/crashes/ice-6179.rs +++ b/tests/ui/crashes/ice-6179.rs @@ -7,7 +7,7 @@ struct Foo {} impl Foo { - fn foo() -> Self { + fn new() -> Self { impl Foo { fn bar() {} } diff --git a/tests/ui/issue_4266.rs b/tests/ui/issue_4266.rs index 8a9d5a3d1d56..cc699b79e433 100644 --- a/tests/ui/issue_4266.rs +++ b/tests/ui/issue_4266.rs @@ -25,7 +25,9 @@ async fn all_to_one<'a>(a: &'a str, _b: &'a str) -> &'a str { struct Foo; impl Foo { // ok - pub async fn foo(&mut self) {} + pub async fn new(&mut self) -> Self { + Foo {} + } } // rust-lang/rust#61115 diff --git a/tests/ui/missing-doc-impl.rs b/tests/ui/missing-doc-impl.rs index bfa9ef01b0e9..d5724bf661c6 100644 --- a/tests/ui/missing-doc-impl.rs +++ b/tests/ui/missing-doc-impl.rs @@ -59,7 +59,9 @@ pub trait E: Sized { } impl Foo { - pub fn foo() {} + pub fn new() -> Self { + Foo { a: 0, b: 0 } + } fn bar() {} } diff --git a/tests/ui/missing-doc-impl.stderr b/tests/ui/missing-doc-impl.stderr index d33d512475b2..bda63d66a174 100644 --- a/tests/ui/missing-doc-impl.stderr +++ b/tests/ui/missing-doc-impl.stderr @@ -78,23 +78,25 @@ LL | type AssociatedTypeDef = Self; error: missing documentation for an associated function --> $DIR/missing-doc-impl.rs:62:5 | -LL | pub fn foo() {} - | ^^^^^^^^^^^^^^^ +LL | / pub fn new() -> Self { +LL | | Foo { a: 0, b: 0 } +LL | | } + | |_____^ error: missing documentation for an associated function - --> $DIR/missing-doc-impl.rs:63:5 + --> $DIR/missing-doc-impl.rs:65:5 | LL | fn bar() {} | ^^^^^^^^^^^ error: missing documentation for an associated function - --> $DIR/missing-doc-impl.rs:67:5 + --> $DIR/missing-doc-impl.rs:69:5 | LL | pub fn foo() {} | ^^^^^^^^^^^^^^^ error: missing documentation for an associated function - --> $DIR/missing-doc-impl.rs:71:5 + --> $DIR/missing-doc-impl.rs:73:5 | LL | / fn foo2() -> u32 { LL | | 1 diff --git a/tests/ui/missing_const_for_fn/cant_be_const.rs b/tests/ui/missing_const_for_fn/cant_be_const.rs index 7cda1aaa3c22..6d2cbb6ad96f 100644 --- a/tests/ui/missing_const_for_fn/cant_be_const.rs +++ b/tests/ui/missing_const_for_fn/cant_be_const.rs @@ -84,7 +84,7 @@ mod with_drop { impl A { // This can not be const because the type implements `Drop`. - pub fn a(self) -> B { + pub fn b(self) -> B { B } } diff --git a/tests/ui/missing_const_for_fn/could_be_const.stderr b/tests/ui/missing_const_for_fn/could_be_const.stderr index 63c211f39fa1..18eff0d14664 100644 --- a/tests/ui/missing_const_for_fn/could_be_const.stderr +++ b/tests/ui/missing_const_for_fn/could_be_const.stderr @@ -60,7 +60,7 @@ LL | | } error: this could be a `const fn` --> $DIR/could_be_const.rs:68:9 | -LL | / pub fn b(self, a: &A) -> B { +LL | / pub fn new(a: &A) -> B { LL | | B LL | | } | |_________^ diff --git a/tests/ui/needless_bool/fixable.fixed b/tests/ui/needless_bool/fixable.fixed index 567dbc54100a..5917ffc3e12e 100644 --- a/tests/ui/needless_bool/fixable.fixed +++ b/tests/ui/needless_bool/fixable.fixed @@ -6,7 +6,8 @@ dead_code, clippy::no_effect, clippy::if_same_then_else, - clippy::needless_return + clippy::needless_return, + clippy::self_named_constructor )] use std::cell::Cell; diff --git a/tests/ui/needless_bool/fixable.rs b/tests/ui/needless_bool/fixable.rs index 10126ad4dbb1..d26dcb9fcc33 100644 --- a/tests/ui/needless_bool/fixable.rs +++ b/tests/ui/needless_bool/fixable.rs @@ -6,7 +6,8 @@ dead_code, clippy::no_effect, clippy::if_same_then_else, - clippy::needless_return + clippy::needless_return, + clippy::self_named_constructor )] use std::cell::Cell; diff --git a/tests/ui/needless_bool/fixable.stderr b/tests/ui/needless_bool/fixable.stderr index 25abfb2a472b..8026d643c448 100644 --- a/tests/ui/needless_bool/fixable.stderr +++ b/tests/ui/needless_bool/fixable.stderr @@ -1,5 +1,5 @@ error: this if-then-else expression returns a bool literal - --> $DIR/fixable.rs:39:5 + --> $DIR/fixable.rs:40:5 | LL | / if x { LL | | true @@ -11,7 +11,7 @@ LL | | }; = note: `-D clippy::needless-bool` implied by `-D warnings` error: this if-then-else expression returns a bool literal - --> $DIR/fixable.rs:44:5 + --> $DIR/fixable.rs:45:5 | LL | / if x { LL | | false @@ -21,7 +21,7 @@ LL | | }; | |_____^ help: you can reduce it to: `!x` error: this if-then-else expression returns a bool literal - --> $DIR/fixable.rs:49:5 + --> $DIR/fixable.rs:50:5 | LL | / if x && y { LL | | false @@ -31,7 +31,7 @@ LL | | }; | |_____^ help: you can reduce it to: `!(x && y)` error: this if-then-else expression returns a bool literal - --> $DIR/fixable.rs:69:5 + --> $DIR/fixable.rs:70:5 | LL | / if x { LL | | return true; @@ -41,7 +41,7 @@ LL | | }; | |_____^ help: you can reduce it to: `return x` error: this if-then-else expression returns a bool literal - --> $DIR/fixable.rs:77:5 + --> $DIR/fixable.rs:78:5 | LL | / if x { LL | | return false; @@ -51,7 +51,7 @@ LL | | }; | |_____^ help: you can reduce it to: `return !x` error: this if-then-else expression returns a bool literal - --> $DIR/fixable.rs:85:5 + --> $DIR/fixable.rs:86:5 | LL | / if x && y { LL | | return true; @@ -61,7 +61,7 @@ LL | | }; | |_____^ help: you can reduce it to: `return x && y` error: this if-then-else expression returns a bool literal - --> $DIR/fixable.rs:93:5 + --> $DIR/fixable.rs:94:5 | LL | / if x && y { LL | | return false; @@ -71,7 +71,7 @@ LL | | }; | |_____^ help: you can reduce it to: `return !(x && y)` error: equality checks against true are unnecessary - --> $DIR/fixable.rs:101:8 + --> $DIR/fixable.rs:102:8 | LL | if x == true {}; | ^^^^^^^^^ help: try simplifying it as shown: `x` @@ -79,25 +79,25 @@ LL | if x == true {}; = note: `-D clippy::bool-comparison` implied by `-D warnings` error: equality checks against false can be replaced by a negation - --> $DIR/fixable.rs:105:8 + --> $DIR/fixable.rs:106:8 | LL | if x == false {}; | ^^^^^^^^^^ help: try simplifying it as shown: `!x` error: equality checks against true are unnecessary - --> $DIR/fixable.rs:115:8 + --> $DIR/fixable.rs:116:8 | LL | if x == true {}; | ^^^^^^^^^ help: try simplifying it as shown: `x` error: equality checks against false can be replaced by a negation - --> $DIR/fixable.rs:116:8 + --> $DIR/fixable.rs:117:8 | LL | if x == false {}; | ^^^^^^^^^^ help: try simplifying it as shown: `!x` error: this if-then-else expression returns a bool literal - --> $DIR/fixable.rs:125:12 + --> $DIR/fixable.rs:126:12 | LL | } else if returns_bool() { | ____________^ diff --git a/tests/ui/self_named_constructor.rs b/tests/ui/self_named_constructor.rs new file mode 100644 index 000000000000..7658b86a8d6d --- /dev/null +++ b/tests/ui/self_named_constructor.rs @@ -0,0 +1,59 @@ +#![warn(clippy::self_named_constructor)] + +struct ShouldSpawn; +struct ShouldNotSpawn; + +impl ShouldSpawn { + pub fn should_spawn() -> ShouldSpawn { + ShouldSpawn + } + + fn should_not_spawn() -> ShouldNotSpawn { + ShouldNotSpawn + } +} + +impl ShouldNotSpawn { + pub fn new() -> ShouldNotSpawn { + ShouldNotSpawn + } +} + +struct ShouldNotSpawnWithTrait; + +trait ShouldNotSpawnTrait { + type Item; +} + +impl ShouldNotSpawnTrait for ShouldNotSpawnWithTrait { + type Item = Self; +} + +impl ShouldNotSpawnWithTrait { + pub fn should_not_spawn_with_trait() -> impl ShouldNotSpawnTrait { + ShouldNotSpawnWithTrait + } +} + +// Same trait name and same type name should not spawn the lint +#[derive(Default)] +pub struct Default; + +trait TraitSameTypeName { + fn should_not_spawn() -> Self; +} +impl TraitSameTypeName for ShouldNotSpawn { + fn should_not_spawn() -> Self { + ShouldNotSpawn + } +} + +struct SelfMethodShouldNotSpawn; + +impl SelfMethodShouldNotSpawn { + fn self_method_should_not_spawn(self) -> Self { + SelfMethodShouldNotSpawn + } +} + +fn main() {} diff --git a/tests/ui/self_named_constructor.stderr b/tests/ui/self_named_constructor.stderr new file mode 100644 index 000000000000..1e2c34ac2f7b --- /dev/null +++ b/tests/ui/self_named_constructor.stderr @@ -0,0 +1,12 @@ +error: constructor `should_spawn` has the same name as the type + --> $DIR/self_named_constructor.rs:7:5 + | +LL | / pub fn should_spawn() -> ShouldSpawn { +LL | | ShouldSpawn +LL | | } + | |_____^ + | + = note: `-D clippy::self-named-constructor` implied by `-D warnings` + +error: aborting due to previous error + diff --git a/tests/ui/unit_arg.rs b/tests/ui/unit_arg.rs index 938cc3c78597..df0fdaccb344 100644 --- a/tests/ui/unit_arg.rs +++ b/tests/ui/unit_arg.rs @@ -6,7 +6,8 @@ clippy::unused_unit, clippy::unnecessary_wraps, clippy::or_fun_call, - clippy::needless_question_mark + clippy::needless_question_mark, + clippy::self_named_constructor )] use std::fmt::Debug; diff --git a/tests/ui/unit_arg.stderr b/tests/ui/unit_arg.stderr index 354fd51cd6b6..8155c4ae1107 100644 --- a/tests/ui/unit_arg.stderr +++ b/tests/ui/unit_arg.stderr @@ -1,5 +1,5 @@ error: passing a unit value to a function - --> $DIR/unit_arg.rs:55:5 + --> $DIR/unit_arg.rs:56:5 | LL | / foo({ LL | | 1; @@ -20,7 +20,7 @@ LL | foo(()); | error: passing a unit value to a function - --> $DIR/unit_arg.rs:58:5 + --> $DIR/unit_arg.rs:59:5 | LL | foo(foo(1)); | ^^^^^^^^^^^ @@ -32,7 +32,7 @@ LL | foo(()); | error: passing a unit value to a function - --> $DIR/unit_arg.rs:59:5 + --> $DIR/unit_arg.rs:60:5 | LL | / foo({ LL | | foo(1); @@ -54,7 +54,7 @@ LL | foo(()); | error: passing a unit value to a function - --> $DIR/unit_arg.rs:64:5 + --> $DIR/unit_arg.rs:65:5 | LL | / b.bar({ LL | | 1; @@ -74,7 +74,7 @@ LL | b.bar(()); | error: passing unit values to a function - --> $DIR/unit_arg.rs:67:5 + --> $DIR/unit_arg.rs:68:5 | LL | taking_multiple_units(foo(0), foo(1)); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -87,7 +87,7 @@ LL | taking_multiple_units((), ()); | error: passing unit values to a function - --> $DIR/unit_arg.rs:68:5 + --> $DIR/unit_arg.rs:69:5 | LL | / taking_multiple_units(foo(0), { LL | | foo(1); @@ -110,7 +110,7 @@ LL | taking_multiple_units((), ()); | error: passing unit values to a function - --> $DIR/unit_arg.rs:72:5 + --> $DIR/unit_arg.rs:73:5 | LL | / taking_multiple_units( LL | | { @@ -140,7 +140,7 @@ LL | foo(2); ... error: passing a unit value to a function - --> $DIR/unit_arg.rs:83:13 + --> $DIR/unit_arg.rs:84:13 | LL | None.or(Some(foo(2))); | ^^^^^^^^^^^^ @@ -154,7 +154,7 @@ LL | }); | error: passing a unit value to a function - --> $DIR/unit_arg.rs:86:5 + --> $DIR/unit_arg.rs:87:5 | LL | foo(foo(())); | ^^^^^^^^^^^^ @@ -166,7 +166,7 @@ LL | foo(()); | error: passing a unit value to a function - --> $DIR/unit_arg.rs:123:5 + --> $DIR/unit_arg.rs:124:5 | LL | Some(foo(1)) | ^^^^^^^^^^^^ diff --git a/tests/ui/use_self.fixed b/tests/ui/use_self.fixed index e2c28542efc7..23fc7632511c 100644 --- a/tests/ui/use_self.fixed +++ b/tests/ui/use_self.fixed @@ -4,7 +4,12 @@ #![warn(clippy::use_self)] #![allow(dead_code)] -#![allow(clippy::should_implement_trait, clippy::upper_case_acronyms, clippy::from_over_into)] +#![allow( + clippy::should_implement_trait, + clippy::upper_case_acronyms, + clippy::from_over_into, + clippy::self_named_constructor +)] #[macro_use] extern crate proc_macro_derive; diff --git a/tests/ui/use_self.rs b/tests/ui/use_self.rs index 3cd99b9f5cd8..bb46a3399237 100644 --- a/tests/ui/use_self.rs +++ b/tests/ui/use_self.rs @@ -4,7 +4,12 @@ #![warn(clippy::use_self)] #![allow(dead_code)] -#![allow(clippy::should_implement_trait, clippy::upper_case_acronyms, clippy::from_over_into)] +#![allow( + clippy::should_implement_trait, + clippy::upper_case_acronyms, + clippy::from_over_into, + clippy::self_named_constructor +)] #[macro_use] extern crate proc_macro_derive; diff --git a/tests/ui/use_self.stderr b/tests/ui/use_self.stderr index 6ac26c9e5a9c..e14368a11aa7 100644 --- a/tests/ui/use_self.stderr +++ b/tests/ui/use_self.stderr @@ -1,5 +1,5 @@ error: unnecessary structure name repetition - --> $DIR/use_self.rs:18:21 + --> $DIR/use_self.rs:23:21 | LL | fn new() -> Foo { | ^^^ help: use the applicable keyword: `Self` @@ -7,163 +7,163 @@ LL | fn new() -> Foo { = note: `-D clippy::use-self` implied by `-D warnings` error: unnecessary structure name repetition - --> $DIR/use_self.rs:19:13 + --> $DIR/use_self.rs:24:13 | LL | Foo {} | ^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:21:22 + --> $DIR/use_self.rs:26:22 | LL | fn test() -> Foo { | ^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:22:13 + --> $DIR/use_self.rs:27:13 | LL | Foo::new() | ^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:27:25 + --> $DIR/use_self.rs:32:25 | LL | fn default() -> Foo { | ^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:28:13 + --> $DIR/use_self.rs:33:13 | LL | Foo::new() | ^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:93:24 + --> $DIR/use_self.rs:98:24 | LL | fn bad(foos: &[Foo]) -> impl Iterator { | ^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:93:55 + --> $DIR/use_self.rs:98:55 | LL | fn bad(foos: &[Foo]) -> impl Iterator { | ^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:108:13 + --> $DIR/use_self.rs:113:13 | LL | TS(0) | ^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:143:29 + --> $DIR/use_self.rs:148:29 | LL | fn bar() -> Bar { | ^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:144:21 + --> $DIR/use_self.rs:149:21 | LL | Bar { foo: Foo {} } | ^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:155:21 + --> $DIR/use_self.rs:160:21 | LL | fn baz() -> Foo { | ^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:156:13 + --> $DIR/use_self.rs:161:13 | LL | Foo {} | ^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:173:21 + --> $DIR/use_self.rs:178:21 | LL | let _ = Enum::B(42); | ^^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:174:21 + --> $DIR/use_self.rs:179:21 | LL | let _ = Enum::C { field: true }; | ^^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:175:21 + --> $DIR/use_self.rs:180:21 | LL | let _ = Enum::A; | ^^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:217:13 + --> $DIR/use_self.rs:222:13 | LL | nested::A::fun_1(); | ^^^^^^^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:218:13 + --> $DIR/use_self.rs:223:13 | LL | nested::A::A; | ^^^^^^^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:220:13 + --> $DIR/use_self.rs:225:13 | LL | nested::A {}; | ^^^^^^^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:239:13 + --> $DIR/use_self.rs:244:13 | LL | TestStruct::from_something() | ^^^^^^^^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:253:25 + --> $DIR/use_self.rs:258:25 | LL | async fn g() -> S { | ^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:254:13 + --> $DIR/use_self.rs:259:13 | LL | S {} | ^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:258:16 + --> $DIR/use_self.rs:263:16 | LL | &p[S::A..S::B] | ^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:258:22 + --> $DIR/use_self.rs:263:22 | LL | &p[S::A..S::B] | ^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:281:29 + --> $DIR/use_self.rs:286:29 | LL | fn foo(value: T) -> Foo { | ^^^^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:282:13 + --> $DIR/use_self.rs:287:13 | LL | Foo:: { value } | ^^^^^^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:454:13 + --> $DIR/use_self.rs:459:13 | LL | A::new::(submod::B {}) | ^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:491:13 + --> $DIR/use_self.rs:496:13 | LL | S2::new() | ^^ help: use the applicable keyword: `Self` From e9e10d209e5a8b73915e33fde277da6bd5982552 Mon Sep 17 00:00:00 2001 From: Anthony Huang Date: Mon, 19 Jul 2021 01:21:06 -0400 Subject: [PATCH 2/2] Run bless --- tests/ui/missing_const_for_fn/could_be_const.stderr | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tests/ui/missing_const_for_fn/could_be_const.stderr b/tests/ui/missing_const_for_fn/could_be_const.stderr index 18eff0d14664..63c211f39fa1 100644 --- a/tests/ui/missing_const_for_fn/could_be_const.stderr +++ b/tests/ui/missing_const_for_fn/could_be_const.stderr @@ -60,7 +60,7 @@ LL | | } error: this could be a `const fn` --> $DIR/could_be_const.rs:68:9 | -LL | / pub fn new(a: &A) -> B { +LL | / pub fn b(self, a: &A) -> B { LL | | B LL | | } | |_________^