mirror of
https://github.com/rust-lang/rust-clippy
synced 2024-11-23 21:23:56 +00:00
[unnecessary_lazy_eval] Do not lint in external macros
This commit is contained in:
kraktus
parent
e43f5a17d4
commit
6ec7759c3b
4 changed files with 59 additions and 35 deletions
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@ -1,7 +1,7 @@
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use clippy_utils::diagnostics::span_lint_and_then;
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use clippy_utils::source::snippet;
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use clippy_utils::ty::is_type_diagnostic_item;
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use clippy_utils::{eager_or_lazy, usage};
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use clippy_utils::{eager_or_lazy, is_from_proc_macro, usage};
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use rustc_errors::Applicability;
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use rustc_hir as hir;
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use rustc_lint::LateContext;
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@ -18,6 +18,10 @@ pub(super) fn check<'tcx>(
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arg: &'tcx hir::Expr<'_>,
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simplify_using: &str,
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) {
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if is_from_proc_macro(cx, expr) {
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return;
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}
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let is_option = is_type_diagnostic_item(cx, cx.typeck_results().expr_ty(recv), sym::Option);
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let is_result = is_type_diagnostic_item(cx, cx.typeck_results().expr_ty(recv), sym::Result);
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let is_bool = cx.typeck_results().expr_ty(recv).is_bool();
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@ -1,9 +1,13 @@
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// run-rustfix
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// aux-build: proc_macro_with_span.rs
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#![warn(clippy::unnecessary_lazy_evaluations)]
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#![allow(clippy::redundant_closure)]
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#![allow(clippy::bind_instead_of_map)]
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#![allow(clippy::map_identity)]
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extern crate proc_macro_with_span;
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use proc_macro_with_span::with_span;
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struct Deep(Option<usize>);
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#[derive(Copy, Clone)]
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@ -141,3 +145,9 @@ fn main() {
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let _: Result<usize, usize> = res.and_then(|x| Err(x));
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let _: Result<usize, usize> = res.or_else(|err| Ok(err));
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}
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#[allow(unused)]
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fn issue9485() {
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// should not lint, is in proc macro
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with_span!(span Some(42).unwrap_or_else(|| 2););
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}
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@ -1,9 +1,13 @@
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// run-rustfix
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// aux-build: proc_macro_with_span.rs
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#![warn(clippy::unnecessary_lazy_evaluations)]
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#![allow(clippy::redundant_closure)]
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#![allow(clippy::bind_instead_of_map)]
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#![allow(clippy::map_identity)]
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extern crate proc_macro_with_span;
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use proc_macro_with_span::with_span;
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struct Deep(Option<usize>);
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#[derive(Copy, Clone)]
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@ -141,3 +145,9 @@ fn main() {
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let _: Result<usize, usize> = res.and_then(|x| Err(x));
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let _: Result<usize, usize> = res.or_else(|err| Ok(err));
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}
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#[allow(unused)]
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fn issue9485() {
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// should not lint, is in proc macro
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with_span!(span Some(42).unwrap_or_else(|| 2););
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}
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@ -1,5 +1,5 @@
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error: unnecessary closure used to substitute value for `Option::None`
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--> $DIR/unnecessary_lazy_eval.rs:44:13
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--> $DIR/unnecessary_lazy_eval.rs:48:13
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LL | let _ = opt.unwrap_or_else(|| 2);
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| ^^^^--------------------
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@ -9,7 +9,7 @@ LL | let _ = opt.unwrap_or_else(|| 2);
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= note: `-D clippy::unnecessary-lazy-evaluations` implied by `-D warnings`
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error: unnecessary closure used to substitute value for `Option::None`
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--> $DIR/unnecessary_lazy_eval.rs:45:13
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--> $DIR/unnecessary_lazy_eval.rs:49:13
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LL | let _ = opt.unwrap_or_else(|| astronomers_pi);
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| ^^^^---------------------------------
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@ -17,7 +17,7 @@ LL | let _ = opt.unwrap_or_else(|| astronomers_pi);
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| help: use `unwrap_or(..)` instead: `unwrap_or(astronomers_pi)`
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error: unnecessary closure used to substitute value for `Option::None`
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--> $DIR/unnecessary_lazy_eval.rs:46:13
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--> $DIR/unnecessary_lazy_eval.rs:50:13
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LL | let _ = opt.unwrap_or_else(|| ext_str.some_field);
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| ^^^^-------------------------------------
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@ -25,7 +25,7 @@ LL | let _ = opt.unwrap_or_else(|| ext_str.some_field);
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| help: use `unwrap_or(..)` instead: `unwrap_or(ext_str.some_field)`
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error: unnecessary closure used to substitute value for `Option::None`
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--> $DIR/unnecessary_lazy_eval.rs:48:13
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--> $DIR/unnecessary_lazy_eval.rs:52:13
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LL | let _ = opt.and_then(|_| ext_opt);
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| ^^^^---------------------
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@ -33,7 +33,7 @@ LL | let _ = opt.and_then(|_| ext_opt);
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| help: use `and(..)` instead: `and(ext_opt)`
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error: unnecessary closure used to substitute value for `Option::None`
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--> $DIR/unnecessary_lazy_eval.rs:49:13
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--> $DIR/unnecessary_lazy_eval.rs:53:13
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LL | let _ = opt.or_else(|| ext_opt);
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| ^^^^-------------------
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@ -41,7 +41,7 @@ LL | let _ = opt.or_else(|| ext_opt);
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| help: use `or(..)` instead: `or(ext_opt)`
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error: unnecessary closure used to substitute value for `Option::None`
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--> $DIR/unnecessary_lazy_eval.rs:50:13
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--> $DIR/unnecessary_lazy_eval.rs:54:13
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LL | let _ = opt.or_else(|| None);
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| ^^^^----------------
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@ -49,7 +49,7 @@ LL | let _ = opt.or_else(|| None);
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| help: use `or(..)` instead: `or(None)`
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error: unnecessary closure used to substitute value for `Option::None`
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--> $DIR/unnecessary_lazy_eval.rs:51:13
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--> $DIR/unnecessary_lazy_eval.rs:55:13
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LL | let _ = opt.get_or_insert_with(|| 2);
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| ^^^^------------------------
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@ -57,7 +57,7 @@ LL | let _ = opt.get_or_insert_with(|| 2);
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| help: use `get_or_insert(..)` instead: `get_or_insert(2)`
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error: unnecessary closure used to substitute value for `Option::None`
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--> $DIR/unnecessary_lazy_eval.rs:52:13
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--> $DIR/unnecessary_lazy_eval.rs:56:13
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LL | let _ = opt.ok_or_else(|| 2);
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| ^^^^----------------
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@ -65,7 +65,7 @@ LL | let _ = opt.ok_or_else(|| 2);
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| help: use `ok_or(..)` instead: `ok_or(2)`
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error: unnecessary closure used to substitute value for `Option::None`
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--> $DIR/unnecessary_lazy_eval.rs:53:13
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--> $DIR/unnecessary_lazy_eval.rs:57:13
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LL | let _ = nested_tuple_opt.unwrap_or_else(|| Some((1, 2)));
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| ^^^^^^^^^^^^^^^^^-------------------------------
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@ -73,7 +73,7 @@ LL | let _ = nested_tuple_opt.unwrap_or_else(|| Some((1, 2)));
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| help: use `unwrap_or(..)` instead: `unwrap_or(Some((1, 2)))`
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error: unnecessary closure used with `bool::then`
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--> $DIR/unnecessary_lazy_eval.rs:54:13
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--> $DIR/unnecessary_lazy_eval.rs:58:13
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LL | let _ = cond.then(|| astronomers_pi);
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| ^^^^^-----------------------
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@ -81,7 +81,7 @@ LL | let _ = cond.then(|| astronomers_pi);
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| help: use `then_some(..)` instead: `then_some(astronomers_pi)`
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error: unnecessary closure used to substitute value for `Option::None`
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--> $DIR/unnecessary_lazy_eval.rs:57:13
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--> $DIR/unnecessary_lazy_eval.rs:61:13
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LL | let _ = Some(10).unwrap_or_else(|| 2);
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| ^^^^^^^^^--------------------
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@ -89,7 +89,7 @@ LL | let _ = Some(10).unwrap_or_else(|| 2);
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| help: use `unwrap_or(..)` instead: `unwrap_or(2)`
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error: unnecessary closure used to substitute value for `Option::None`
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--> $DIR/unnecessary_lazy_eval.rs:58:13
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--> $DIR/unnecessary_lazy_eval.rs:62:13
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LL | let _ = Some(10).and_then(|_| ext_opt);
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| ^^^^^^^^^---------------------
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@ -97,7 +97,7 @@ LL | let _ = Some(10).and_then(|_| ext_opt);
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| help: use `and(..)` instead: `and(ext_opt)`
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error: unnecessary closure used to substitute value for `Option::None`
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--> $DIR/unnecessary_lazy_eval.rs:59:28
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--> $DIR/unnecessary_lazy_eval.rs:63:28
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LL | let _: Option<usize> = None.or_else(|| ext_opt);
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| ^^^^^-------------------
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@ -105,7 +105,7 @@ LL | let _: Option<usize> = None.or_else(|| ext_opt);
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| help: use `or(..)` instead: `or(ext_opt)`
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error: unnecessary closure used to substitute value for `Option::None`
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--> $DIR/unnecessary_lazy_eval.rs:60:13
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--> $DIR/unnecessary_lazy_eval.rs:64:13
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LL | let _ = None.get_or_insert_with(|| 2);
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| ^^^^^------------------------
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@ -113,7 +113,7 @@ LL | let _ = None.get_or_insert_with(|| 2);
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| help: use `get_or_insert(..)` instead: `get_or_insert(2)`
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error: unnecessary closure used to substitute value for `Option::None`
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--> $DIR/unnecessary_lazy_eval.rs:61:35
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--> $DIR/unnecessary_lazy_eval.rs:65:35
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LL | let _: Result<usize, usize> = None.ok_or_else(|| 2);
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| ^^^^^----------------
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@ -121,7 +121,7 @@ LL | let _: Result<usize, usize> = None.ok_or_else(|| 2);
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| help: use `ok_or(..)` instead: `ok_or(2)`
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error: unnecessary closure used to substitute value for `Option::None`
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--> $DIR/unnecessary_lazy_eval.rs:62:28
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--> $DIR/unnecessary_lazy_eval.rs:66:28
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LL | let _: Option<usize> = None.or_else(|| None);
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| ^^^^^----------------
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@ -129,7 +129,7 @@ LL | let _: Option<usize> = None.or_else(|| None);
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| help: use `or(..)` instead: `or(None)`
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error: unnecessary closure used to substitute value for `Option::None`
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--> $DIR/unnecessary_lazy_eval.rs:65:13
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--> $DIR/unnecessary_lazy_eval.rs:69:13
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LL | let _ = deep.0.unwrap_or_else(|| 2);
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| ^^^^^^^--------------------
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@ -137,7 +137,7 @@ LL | let _ = deep.0.unwrap_or_else(|| 2);
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| help: use `unwrap_or(..)` instead: `unwrap_or(2)`
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error: unnecessary closure used to substitute value for `Option::None`
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--> $DIR/unnecessary_lazy_eval.rs:66:13
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--> $DIR/unnecessary_lazy_eval.rs:70:13
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LL | let _ = deep.0.and_then(|_| ext_opt);
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| ^^^^^^^---------------------
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@ -145,7 +145,7 @@ LL | let _ = deep.0.and_then(|_| ext_opt);
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| help: use `and(..)` instead: `and(ext_opt)`
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error: unnecessary closure used to substitute value for `Option::None`
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--> $DIR/unnecessary_lazy_eval.rs:67:13
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--> $DIR/unnecessary_lazy_eval.rs:71:13
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LL | let _ = deep.0.or_else(|| None);
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| ^^^^^^^----------------
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@ -153,7 +153,7 @@ LL | let _ = deep.0.or_else(|| None);
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| help: use `or(..)` instead: `or(None)`
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error: unnecessary closure used to substitute value for `Option::None`
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--> $DIR/unnecessary_lazy_eval.rs:68:13
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--> $DIR/unnecessary_lazy_eval.rs:72:13
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LL | let _ = deep.0.get_or_insert_with(|| 2);
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| ^^^^^^^------------------------
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@ -161,7 +161,7 @@ LL | let _ = deep.0.get_or_insert_with(|| 2);
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| help: use `get_or_insert(..)` instead: `get_or_insert(2)`
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error: unnecessary closure used to substitute value for `Option::None`
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--> $DIR/unnecessary_lazy_eval.rs:69:13
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--> $DIR/unnecessary_lazy_eval.rs:73:13
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LL | let _ = deep.0.ok_or_else(|| 2);
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| ^^^^^^^----------------
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@ -169,7 +169,7 @@ LL | let _ = deep.0.ok_or_else(|| 2);
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| help: use `ok_or(..)` instead: `ok_or(2)`
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error: unnecessary closure used to substitute value for `Option::None`
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--> $DIR/unnecessary_lazy_eval.rs:92:28
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--> $DIR/unnecessary_lazy_eval.rs:96:28
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LL | let _: Option<usize> = None.or_else(|| Some(3));
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| ^^^^^-------------------
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@ -177,7 +177,7 @@ LL | let _: Option<usize> = None.or_else(|| Some(3));
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| help: use `or(..)` instead: `or(Some(3))`
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error: unnecessary closure used to substitute value for `Option::None`
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--> $DIR/unnecessary_lazy_eval.rs:93:13
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--> $DIR/unnecessary_lazy_eval.rs:97:13
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LL | let _ = deep.0.or_else(|| Some(3));
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| ^^^^^^^-------------------
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@ -185,7 +185,7 @@ LL | let _ = deep.0.or_else(|| Some(3));
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| help: use `or(..)` instead: `or(Some(3))`
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error: unnecessary closure used to substitute value for `Option::None`
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--> $DIR/unnecessary_lazy_eval.rs:94:13
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--> $DIR/unnecessary_lazy_eval.rs:98:13
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LL | let _ = opt.or_else(|| Some(3));
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| ^^^^-------------------
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@ -193,7 +193,7 @@ LL | let _ = opt.or_else(|| Some(3));
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| help: use `or(..)` instead: `or(Some(3))`
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error: unnecessary closure used to substitute value for `Result::Err`
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--> $DIR/unnecessary_lazy_eval.rs:100:13
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--> $DIR/unnecessary_lazy_eval.rs:104:13
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LL | let _ = res2.unwrap_or_else(|_| 2);
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| ^^^^^---------------------
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@ -201,7 +201,7 @@ LL | let _ = res2.unwrap_or_else(|_| 2);
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| help: use `unwrap_or(..)` instead: `unwrap_or(2)`
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error: unnecessary closure used to substitute value for `Result::Err`
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--> $DIR/unnecessary_lazy_eval.rs:101:13
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--> $DIR/unnecessary_lazy_eval.rs:105:13
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LL | let _ = res2.unwrap_or_else(|_| astronomers_pi);
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| ^^^^^----------------------------------
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@ -209,7 +209,7 @@ LL | let _ = res2.unwrap_or_else(|_| astronomers_pi);
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| help: use `unwrap_or(..)` instead: `unwrap_or(astronomers_pi)`
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error: unnecessary closure used to substitute value for `Result::Err`
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--> $DIR/unnecessary_lazy_eval.rs:102:13
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--> $DIR/unnecessary_lazy_eval.rs:106:13
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|
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LL | let _ = res2.unwrap_or_else(|_| ext_str.some_field);
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| ^^^^^--------------------------------------
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@ -217,7 +217,7 @@ LL | let _ = res2.unwrap_or_else(|_| ext_str.some_field);
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| help: use `unwrap_or(..)` instead: `unwrap_or(ext_str.some_field)`
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error: unnecessary closure used to substitute value for `Result::Err`
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--> $DIR/unnecessary_lazy_eval.rs:124:35
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--> $DIR/unnecessary_lazy_eval.rs:128:35
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|
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LL | let _: Result<usize, usize> = res.and_then(|_| Err(2));
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| ^^^^--------------------
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@ -225,7 +225,7 @@ LL | let _: Result<usize, usize> = res.and_then(|_| Err(2));
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| help: use `and(..)` instead: `and(Err(2))`
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error: unnecessary closure used to substitute value for `Result::Err`
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--> $DIR/unnecessary_lazy_eval.rs:125:35
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--> $DIR/unnecessary_lazy_eval.rs:129:35
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|
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LL | let _: Result<usize, usize> = res.and_then(|_| Err(astronomers_pi));
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| ^^^^---------------------------------
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@ -233,7 +233,7 @@ LL | let _: Result<usize, usize> = res.and_then(|_| Err(astronomers_pi));
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| help: use `and(..)` instead: `and(Err(astronomers_pi))`
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error: unnecessary closure used to substitute value for `Result::Err`
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--> $DIR/unnecessary_lazy_eval.rs:126:35
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--> $DIR/unnecessary_lazy_eval.rs:130:35
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|
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LL | let _: Result<usize, usize> = res.and_then(|_| Err(ext_str.some_field));
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| ^^^^-------------------------------------
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@ -241,7 +241,7 @@ LL | let _: Result<usize, usize> = res.and_then(|_| Err(ext_str.some_field))
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| help: use `and(..)` instead: `and(Err(ext_str.some_field))`
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error: unnecessary closure used to substitute value for `Result::Err`
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--> $DIR/unnecessary_lazy_eval.rs:128:35
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--> $DIR/unnecessary_lazy_eval.rs:132:35
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|
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LL | let _: Result<usize, usize> = res.or_else(|_| Ok(2));
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| ^^^^------------------
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@ -249,7 +249,7 @@ LL | let _: Result<usize, usize> = res.or_else(|_| Ok(2));
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| help: use `or(..)` instead: `or(Ok(2))`
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error: unnecessary closure used to substitute value for `Result::Err`
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--> $DIR/unnecessary_lazy_eval.rs:129:35
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--> $DIR/unnecessary_lazy_eval.rs:133:35
|
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|
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LL | let _: Result<usize, usize> = res.or_else(|_| Ok(astronomers_pi));
|
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| ^^^^-------------------------------
|
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|
|
@ -257,7 +257,7 @@ LL | let _: Result<usize, usize> = res.or_else(|_| Ok(astronomers_pi));
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| help: use `or(..)` instead: `or(Ok(astronomers_pi))`
|
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|
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error: unnecessary closure used to substitute value for `Result::Err`
|
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--> $DIR/unnecessary_lazy_eval.rs:130:35
|
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--> $DIR/unnecessary_lazy_eval.rs:134:35
|
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|
|
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LL | let _: Result<usize, usize> = res.or_else(|_| Ok(ext_str.some_field));
|
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| ^^^^-----------------------------------
|
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|
|
@ -265,7 +265,7 @@ LL | let _: Result<usize, usize> = res.or_else(|_| Ok(ext_str.some_field));
|
|||
| help: use `or(..)` instead: `or(Ok(ext_str.some_field))`
|
||||
|
||||
error: unnecessary closure used to substitute value for `Result::Err`
|
||||
--> $DIR/unnecessary_lazy_eval.rs:131:35
|
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--> $DIR/unnecessary_lazy_eval.rs:135:35
|
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|
|
||||
LL | let _: Result<usize, usize> = res.
|
||||
| ___________________________________^
|
||||
|
|
|
|||
Loading…
Reference in a new issue