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Auto merge of #5773 - giraffate:repeat_once, r=flip1995

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Add a lint for `.repeat(1)`

changelog: New lint `repeat_once`

fix #3028.
This commit is contained in:
bors
2020-07-14 09:13:58 +00:00
parent 4b8700879c b4091032ab
commit 12df6384b9
7 changed files with 167 additions and 0 deletions
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5
clippy_lints/src/lib.rs
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@@ -281,6 +281,7 @@ mod redundant_pub_crate;
mod redundant_static_lifetimes;
mod reference;
mod regex;
mod repeat_once;
mod returns;
mod serde_api;
mod shadow;
@@ -764,6 +765,7 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf:
&reference::REF_IN_DEREF,
&regex::INVALID_REGEX,
&regex::TRIVIAL_REGEX,
&repeat_once::REPEAT_ONCE,
&returns::NEEDLESS_RETURN,
&returns::UNUSED_UNIT,
&serde_api::SERDE_API_MISUSE,
@@ -1070,6 +1072,7 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf:
store.register_late_pass(|| box macro_use::MacroUseImports::default());
store.register_late_pass(|| box map_identity::MapIdentity);
store.register_late_pass(|| box pattern_type_mismatch::PatternTypeMismatch);
store.register_late_pass(|| box repeat_once::RepeatOnce);
store.register_group(true, "clippy::restriction", Some("clippy_restriction"), vec![
LintId::of(&arithmetic::FLOAT_ARITHMETIC),
@@ -1393,6 +1396,7 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf:
LintId::of(&reference::REF_IN_DEREF),
LintId::of(&regex::INVALID_REGEX),
LintId::of(&regex::TRIVIAL_REGEX),
LintId::of(&repeat_once::REPEAT_ONCE),
LintId::of(&returns::NEEDLESS_RETURN),
LintId::of(&returns::UNUSED_UNIT),
LintId::of(&serde_api::SERDE_API_MISUSE),
@@ -1602,6 +1606,7 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf:
LintId::of(&ranges::RANGE_ZIP_WITH_LEN),
LintId::of(&reference::DEREF_ADDROF),
LintId::of(&reference::REF_IN_DEREF),
LintId::of(&repeat_once::REPEAT_ONCE),
LintId::of(&swap::MANUAL_SWAP),
LintId::of(&temporary_assignment::TEMPORARY_ASSIGNMENT),
LintId::of(&transmute::CROSSPOINTER_TRANSMUTE),