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Auto merge of #5529 - alex-700:improve-option-and-then-some-lint, r=p…
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…hansch

Improve `option_and_then_some` lint

fixed #5492

changelog: Improve and generalize `option_and_then_some` and rename it to `bind_instead_of_map`.
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bors committed May 17, 2020
2 parents 440a46d + 07f1edf commit af38489
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Showing 20 changed files with 523 additions and 125 deletions.
4 changes: 2 additions & 2 deletions CHANGELOG.md
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Original file line number Diff line number Diff line change
Expand Up @@ -315,7 +315,7 @@ Released 2019-11-07
* [`missing_safety_doc`] [#4535](https://github.com/rust-lang/rust-clippy/pull/4535)
* [`mem_replace_with_uninit`] [#4511](https://github.com/rust-lang/rust-clippy/pull/4511)
* [`suspicious_map`] [#4394](https://github.com/rust-lang/rust-clippy/pull/4394)
* [`option_and_then_some`] [#4386](https://github.com/rust-lang/rust-clippy/pull/4386)
* `option_and_then_some` [#4386](https://github.com/rust-lang/rust-clippy/pull/4386)
* [`manual_saturating_arithmetic`] [#4498](https://github.com/rust-lang/rust-clippy/pull/4498)
* Deprecate `unused_collect` lint. This is fully covered by rustc's `#[must_use]` on `collect` [#4348](https://github.com/rust-lang/rust-clippy/pull/4348)
* Move `type_repetition_in_bounds` to pedantic group [#4403](https://github.com/rust-lang/rust-clippy/pull/4403)
Expand Down Expand Up @@ -1273,6 +1273,7 @@ Released 2018-09-13
[`assign_ops`]: https://rust-lang.github.io/rust-clippy/master/index.html#assign_ops
[`await_holding_lock`]: https://rust-lang.github.io/rust-clippy/master/index.html#await_holding_lock
[`bad_bit_mask`]: https://rust-lang.github.io/rust-clippy/master/index.html#bad_bit_mask
[`bind_instead_of_map`]: https://rust-lang.github.io/rust-clippy/master/index.html#bind_instead_of_map
[`blacklisted_name`]: https://rust-lang.github.io/rust-clippy/master/index.html#blacklisted_name
[`blocks_in_if_conditions`]: https://rust-lang.github.io/rust-clippy/master/index.html#blocks_in_if_conditions
[`bool_comparison`]: https://rust-lang.github.io/rust-clippy/master/index.html#bool_comparison
Expand Down Expand Up @@ -1494,7 +1495,6 @@ Released 2018-09-13
[`not_unsafe_ptr_arg_deref`]: https://rust-lang.github.io/rust-clippy/master/index.html#not_unsafe_ptr_arg_deref
[`ok_expect`]: https://rust-lang.github.io/rust-clippy/master/index.html#ok_expect
[`op_ref`]: https://rust-lang.github.io/rust-clippy/master/index.html#op_ref
[`option_and_then_some`]: https://rust-lang.github.io/rust-clippy/master/index.html#option_and_then_some
[`option_as_ref_deref`]: https://rust-lang.github.io/rust-clippy/master/index.html#option_as_ref_deref
[`option_env_unwrap`]: https://rust-lang.github.io/rust-clippy/master/index.html#option_env_unwrap
[`option_map_or_none`]: https://rust-lang.github.io/rust-clippy/master/index.html#option_map_or_none
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2 changes: 1 addition & 1 deletion clippy_lints/src/eq_op.rs
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Expand Up @@ -115,7 +115,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for EqOp {
let rsnip = snippet(cx, r.span, "...").to_string();
multispan_sugg(
diag,
"use the values directly".to_string(),
"use the values directly",
vec![(left.span, lsnip), (right.span, rsnip)],
);
},
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7 changes: 4 additions & 3 deletions clippy_lints/src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -650,6 +650,7 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf:
&mem_replace::MEM_REPLACE_OPTION_WITH_NONE,
&mem_replace::MEM_REPLACE_WITH_DEFAULT,
&mem_replace::MEM_REPLACE_WITH_UNINIT,
&methods::BIND_INSTEAD_OF_MAP,
&methods::CHARS_LAST_CMP,
&methods::CHARS_NEXT_CMP,
&methods::CLONE_DOUBLE_REF,
Expand All @@ -676,7 +677,6 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf:
&methods::MAP_UNWRAP_OR,
&methods::NEW_RET_NO_SELF,
&methods::OK_EXPECT,
&methods::OPTION_AND_THEN_SOME,
&methods::OPTION_AS_REF_DEREF,
&methods::OPTION_MAP_OR_NONE,
&methods::OR_FUN_CALL,
Expand Down Expand Up @@ -1291,6 +1291,7 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf:
LintId::of(&mem_replace::MEM_REPLACE_OPTION_WITH_NONE),
LintId::of(&mem_replace::MEM_REPLACE_WITH_DEFAULT),
LintId::of(&mem_replace::MEM_REPLACE_WITH_UNINIT),
LintId::of(&methods::BIND_INSTEAD_OF_MAP),
LintId::of(&methods::CHARS_LAST_CMP),
LintId::of(&methods::CHARS_NEXT_CMP),
LintId::of(&methods::CLONE_DOUBLE_REF),
Expand All @@ -1307,7 +1308,6 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf:
LintId::of(&methods::MANUAL_SATURATING_ARITHMETIC),
LintId::of(&methods::NEW_RET_NO_SELF),
LintId::of(&methods::OK_EXPECT),
LintId::of(&methods::OPTION_AND_THEN_SOME),
LintId::of(&methods::OPTION_AS_REF_DEREF),
LintId::of(&methods::OPTION_MAP_OR_NONE),
LintId::of(&methods::OR_FUN_CALL),
Expand Down Expand Up @@ -1559,10 +1559,10 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf:
LintId::of(&matches::MATCH_AS_REF),
LintId::of(&matches::MATCH_SINGLE_BINDING),
LintId::of(&matches::WILDCARD_IN_OR_PATTERNS),
LintId::of(&methods::BIND_INSTEAD_OF_MAP),
LintId::of(&methods::CLONE_ON_COPY),
LintId::of(&methods::FILTER_NEXT),
LintId::of(&methods::FLAT_MAP_IDENTITY),
LintId::of(&methods::OPTION_AND_THEN_SOME),
LintId::of(&methods::OPTION_AS_REF_DEREF),
LintId::of(&methods::SEARCH_IS_SOME),
LintId::of(&methods::SKIP_WHILE_NEXT),
Expand Down Expand Up @@ -1784,6 +1784,7 @@ pub fn register_renamed(ls: &mut rustc_lint::LintStore) {
ls.register_renamed("clippy::new_without_default_derive", "clippy::new_without_default");
ls.register_renamed("clippy::cyclomatic_complexity", "clippy::cognitive_complexity");
ls.register_renamed("clippy::const_static_lifetime", "clippy::redundant_static_lifetimes");
ls.register_renamed("clippy::option_and_then_some", "clippy::bind_instead_of_map");
ls.register_renamed("clippy::block_in_if_condition_expr", "clippy::blocks_in_if_conditions");
ls.register_renamed("clippy::block_in_if_condition_stmt", "clippy::blocks_in_if_conditions");
ls.register_renamed("clippy::option_map_unwrap_or", "clippy::map_unwrap_or");
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6 changes: 3 additions & 3 deletions clippy_lints/src/loops.rs
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Expand Up @@ -1134,7 +1134,7 @@ fn check_for_loop_range<'a, 'tcx>(
|diag| {
multispan_sugg(
diag,
"consider using an iterator".to_string(),
"consider using an iterator",
vec![
(pat.span, format!("({}, <item>)", ident.name)),
(
Expand Down Expand Up @@ -1163,7 +1163,7 @@ fn check_for_loop_range<'a, 'tcx>(
|diag| {
multispan_sugg(
diag,
"consider using an iterator".to_string(),
"consider using an iterator",
vec![(pat.span, "<item>".to_string()), (arg.span, repl)],
);
},
Expand Down Expand Up @@ -1462,7 +1462,7 @@ fn check_for_loop_over_map_kv<'a, 'tcx>(
let map = sugg::Sugg::hir(cx, arg, "map");
multispan_sugg(
diag,
"use the corresponding method".into(),
"use the corresponding method",
vec![
(pat_span, snippet(cx, new_pat_span, kind).into_owned()),
(arg_span, format!("{}.{}s{}()", map.maybe_par(), kind, mutbl)),
Expand Down
2 changes: 1 addition & 1 deletion clippy_lints/src/matches.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -820,7 +820,7 @@ fn check_match_ref_pats(cx: &LateContext<'_, '_>, ex: &Expr<'_>, arms: &[Arm<'_>

span_lint_and_then(cx, MATCH_REF_PATS, expr.span, title, |diag| {
if !expr.span.from_expansion() {
multispan_sugg(diag, msg.to_owned(), suggs);
multispan_sugg(diag, msg, suggs);
}
});
}
Expand Down
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