rust-lang/rust
1
0
Fork 0
Code Issues Pull Requests Actions 1 Packages Projects Releases Wiki Activity

Auto merge of #5694 - wangtheo:issue-5626, r=matthiaskrgr

Browse Source 
#5626: lint iterator.map(|x| x)

changelog: adds a new lint for iterator.map(|x| x) (see https://github.com/rust-lang/rust-clippy/issues/5626)

The code also lints for result.map(|x| x) and option.map(|x| x). Also, I'm not sure if I'm checking for type adjustments correctly and I can't think of an example where .map(|x| x) would apply type adjustments.
This commit is contained in:
bors
2020-06-23 15:59:27 +00:00
parent c2c07fa9d0 fb4f9a0ad7
commit 583d644934
10 changed files with 228 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
clippy_lints/src/lib.rs
View File

@@ -229,6 +229,7 @@ mod main_recursion;
mod manual_async_fn;
mod manual_non_exhaustive;
mod map_clone;
mod map_identity;
mod map_unit_fn;
mod match_on_vec_items;
mod matches;
@@ -608,6 +609,7 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf:
&manual_async_fn::MANUAL_ASYNC_FN,
&manual_non_exhaustive::MANUAL_NON_EXHAUSTIVE,
&map_clone::MAP_CLONE,
&map_identity::MAP_IDENTITY,
&map_unit_fn::OPTION_MAP_UNIT_FN,
&map_unit_fn::RESULT_MAP_UNIT_FN,
&match_on_vec_items::MATCH_ON_VEC_ITEMS,
@@ -1057,6 +1059,7 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf:
});
store.register_early_pass(|| box unnested_or_patterns::UnnestedOrPatterns);
store.register_late_pass(|| box macro_use::MacroUseImports::default());
store.register_late_pass(|| box map_identity::MapIdentity);
store.register_group(true, "clippy::restriction", Some("clippy_restriction"), vec![
LintId::of(&arithmetic::FLOAT_ARITHMETIC),
@@ -1273,6 +1276,7 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf:
LintId::of(&manual_async_fn::MANUAL_ASYNC_FN),
LintId::of(&manual_non_exhaustive::MANUAL_NON_EXHAUSTIVE),
LintId::of(&map_clone::MAP_CLONE),
LintId::of(&map_identity::MAP_IDENTITY),
LintId::of(&map_unit_fn::OPTION_MAP_UNIT_FN),
LintId::of(&map_unit_fn::RESULT_MAP_UNIT_FN),
LintId::of(&matches::INFALLIBLE_DESTRUCTURING_MATCH),
@@ -1550,6 +1554,7 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf:
LintId::of(&loops::EXPLICIT_COUNTER_LOOP),
LintId::of(&loops::MUT_RANGE_BOUND),
LintId::of(&loops::WHILE_LET_LOOP),
LintId::of(&map_identity::MAP_IDENTITY),
LintId::of(&map_unit_fn::OPTION_MAP_UNIT_FN),
LintId::of(&map_unit_fn::RESULT_MAP_UNIT_FN),
LintId::of(&matches::MATCH_AS_REF),