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matthrimatthri
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fix iter_kv_map dont suggest into_keys and into_values if msrv is to low
1 parent d487579 commit 5f651da

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6 files changed

+154
-2
lines changed

6 files changed

+154
-2
lines changed

‎clippy_config/src/msrvs.rs‎

Lines changed: 1 addition & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -23,6 +23,7 @@ msrv_aliases! {
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1,62,0 { BOOL_THEN_SOME, DEFAULT_ENUM_ATTRIBUTE }
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1,58,0 { FORMAT_ARGS_CAPTURE, PATTERN_TRAIT_CHAR_ARRAY }
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1,55,0 { SEEK_REWIND }
26+
1,54,0 { INTO_KEYS }
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1,53,0 { OR_PATTERNS, MANUAL_BITS, BTREE_MAP_RETAIN, BTREE_SET_RETAIN, ARRAY_INTO_ITERATOR }
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1,52,0 { STR_SPLIT_ONCE, REM_EUCLID_CONST }
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1,51,0 { BORROW_AS_PTR, SEEK_FROM_CURRENT, UNSIGNED_ABS }

‎clippy_lints/src/methods/iter_kv_map.rs‎

Lines changed: 5 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -1,6 +1,7 @@
11
#![allow(unused_imports)]
22

33
use super::ITER_KV_MAP;
4+
use clippy_config::msrvs::{self, Msrv};
45
use clippy_utils::diagnostics::{multispan_sugg, span_lint_and_sugg, span_lint_and_then};
56
use clippy_utils::source::{snippet, snippet_with_applicability};
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use clippy_utils::ty::is_type_diagnostic_item;
@@ -21,7 +22,11 @@ pub(super) fn check<'tcx>(
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expr: &'tcx Expr<'tcx>, // .iter().map(|(_, v_| v))
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recv: &'tcx Expr<'tcx>, // hashmap
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m_arg: &'tcx Expr<'tcx>, // |(_, v)| v
25+
msrv: &Msrv,
2426
) {
27+
if map_type == "into_iter" && !msrv.meets(msrvs::INTO_KEYS) {
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return;
29+
}
2530
if !expr.span.from_expansion()
2631
&& let ExprKind::Closure(c) = m_arg.kind
2732
&& let Body {

‎clippy_lints/src/methods/mod.rs‎

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -4255,7 +4255,7 @@ impl Methods {
42554255
map_clone::check(cx, expr, recv, m_arg, &self.msrv);
42564256
match method_call(recv) {
42574257
Some((map_name @ ("iter" | "into_iter"), recv2, _, _, _)) => {
4258-
iter_kv_map::check(cx, map_name, expr, recv2, m_arg);
4258+
iter_kv_map::check(cx, map_name, expr, recv2, m_arg, &self.msrv);
42594259
},
42604260
Some(("cloned", recv2, [], _, _)) => iter_overeager_cloned::check(
42614261
cx,

‎tests/ui/iter_kv_map.fixed‎

Lines changed: 43 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -89,3 +89,46 @@ fn main() {
8989
// Don't let a mut interfere.
9090
let _ = map.clone().into_values().count();
9191
}
92+
93+
#[clippy::msrv = "1.53"]
94+
fn msrv_1_53() {
95+
let map: HashMap<u32, u32> = HashMap::new();
96+
97+
// Don't lint because into_iter is not supported
98+
let _ = map.clone().into_iter().map(|(key, _)| key).collect::<Vec<_>>();
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let _ = map.clone().into_iter().map(|(key, _)| key + 2).collect::<Vec<_>>();
100+
101+
let _ = map.clone().into_iter().map(|(_, val)| val).collect::<Vec<_>>();
102+
let _ = map.clone().into_iter().map(|(_, val)| val + 2).collect::<Vec<_>>();
103+
104+
// Lint
105+
let _ = map.keys().collect::<Vec<_>>();
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//~^ ERROR: iterating on a map's keys
107+
let _ = map.values().collect::<Vec<_>>();
108+
//~^ ERROR: iterating on a map's values
109+
let _ = map.values().map(|v| v + 2).collect::<Vec<_>>();
110+
//~^ ERROR: iterating on a map's values
111+
}
112+
113+
#[clippy::msrv = "1.54"]
114+
fn msrv_1_54() {
115+
// Lint all
116+
let map: HashMap<u32, u32> = HashMap::new();
117+
118+
let _ = map.clone().into_keys().collect::<Vec<_>>();
119+
//~^ ERROR: iterating on a map's keys
120+
let _ = map.clone().into_keys().map(|key| key + 2).collect::<Vec<_>>();
121+
//~^ ERROR: iterating on a map's keys
122+
123+
let _ = map.clone().into_values().collect::<Vec<_>>();
124+
//~^ ERROR: iterating on a map's values
125+
let _ = map.clone().into_values().map(|val| val + 2).collect::<Vec<_>>();
126+
//~^ ERROR: iterating on a map's values
127+
128+
let _ = map.keys().collect::<Vec<_>>();
129+
//~^ ERROR: iterating on a map's keys
130+
let _ = map.values().collect::<Vec<_>>();
131+
//~^ ERROR: iterating on a map's values
132+
let _ = map.values().map(|v| v + 2).collect::<Vec<_>>();
133+
//~^ ERROR: iterating on a map's values
134+
}

‎tests/ui/iter_kv_map.rs‎

Lines changed: 43 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -93,3 +93,46 @@ fn main() {
9393
// Don't let a mut interfere.
9494
let _ = map.clone().into_iter().map(|(_, mut val)| val).count();
9595
}
96+
97+
#[clippy::msrv = "1.53"]
98+
fn msrv_1_53() {
99+
let map: HashMap<u32, u32> = HashMap::new();
100+
101+
// Don't lint because into_iter is not supported
102+
let _ = map.clone().into_iter().map(|(key, _)| key).collect::<Vec<_>>();
103+
let _ = map.clone().into_iter().map(|(key, _)| key + 2).collect::<Vec<_>>();
104+
105+
let _ = map.clone().into_iter().map(|(_, val)| val).collect::<Vec<_>>();
106+
let _ = map.clone().into_iter().map(|(_, val)| val + 2).collect::<Vec<_>>();
107+
108+
// Lint
109+
let _ = map.iter().map(|(key, _)| key).collect::<Vec<_>>();
110+
//~^ ERROR: iterating on a map's keys
111+
let _ = map.iter().map(|(_, value)| value).collect::<Vec<_>>();
112+
//~^ ERROR: iterating on a map's values
113+
let _ = map.iter().map(|(_, v)| v + 2).collect::<Vec<_>>();
114+
//~^ ERROR: iterating on a map's values
115+
}
116+
117+
#[clippy::msrv = "1.54"]
118+
fn msrv_1_54() {
119+
// Lint all
120+
let map: HashMap<u32, u32> = HashMap::new();
121+
122+
let _ = map.clone().into_iter().map(|(key, _)| key).collect::<Vec<_>>();
123+
//~^ ERROR: iterating on a map's keys
124+
let _ = map.clone().into_iter().map(|(key, _)| key + 2).collect::<Vec<_>>();
125+
//~^ ERROR: iterating on a map's keys
126+
127+
let _ = map.clone().into_iter().map(|(_, val)| val).collect::<Vec<_>>();
128+
//~^ ERROR: iterating on a map's values
129+
let _ = map.clone().into_iter().map(|(_, val)| val + 2).collect::<Vec<_>>();
130+
//~^ ERROR: iterating on a map's values
131+
132+
let _ = map.iter().map(|(key, _)| key).collect::<Vec<_>>();
133+
//~^ ERROR: iterating on a map's keys
134+
let _ = map.iter().map(|(_, value)| value).collect::<Vec<_>>();
135+
//~^ ERROR: iterating on a map's values
136+
let _ = map.iter().map(|(_, v)| v + 2).collect::<Vec<_>>();
137+
//~^ ERROR: iterating on a map's values
138+
}

‎tests/ui/iter_kv_map.stderr‎

Lines changed: 61 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -201,5 +201,65 @@ error: iterating on a map's values
201201
LL | let _ = map.clone().into_iter().map(|(_, mut val)| val).count();
202202
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `map.clone().into_values()`
203203

204-
error: aborting due to 28 previous errors
204+
error: iterating on a map's keys
205+
--> $DIR/iter_kv_map.rs:109:13
206+
|
207+
LL | let _ = map.iter().map(|(key, _)| key).collect::<Vec<_>>();
208+
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `map.keys()`
209+
210+
error: iterating on a map's values
211+
--> $DIR/iter_kv_map.rs:111:13
212+
|
213+
LL | let _ = map.iter().map(|(_, value)| value).collect::<Vec<_>>();
214+
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `map.values()`
215+
216+
error: iterating on a map's values
217+
--> $DIR/iter_kv_map.rs:113:13
218+
|
219+
LL | let _ = map.iter().map(|(_, v)| v + 2).collect::<Vec<_>>();
220+
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `map.values().map(|v| v + 2)`
221+
222+
error: iterating on a map's keys
223+
--> $DIR/iter_kv_map.rs:122:13
224+
|
225+
LL | let _ = map.clone().into_iter().map(|(key, _)| key).collect::<Vec<_>>();
226+
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `map.clone().into_keys()`
227+
228+
error: iterating on a map's keys
229+
--> $DIR/iter_kv_map.rs:124:13
230+
|
231+
LL | let _ = map.clone().into_iter().map(|(key, _)| key + 2).collect::<Vec<_>>();
232+
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `map.clone().into_keys().map(|key| key + 2)`
233+
234+
error: iterating on a map's values
235+
--> $DIR/iter_kv_map.rs:127:13
236+
|
237+
LL | let _ = map.clone().into_iter().map(|(_, val)| val).collect::<Vec<_>>();
238+
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `map.clone().into_values()`
239+
240+
error: iterating on a map's values
241+
--> $DIR/iter_kv_map.rs:129:13
242+
|
243+
LL | let _ = map.clone().into_iter().map(|(_, val)| val + 2).collect::<Vec<_>>();
244+
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `map.clone().into_values().map(|val| val + 2)`
245+
246+
error: iterating on a map's keys
247+
--> $DIR/iter_kv_map.rs:132:13
248+
|
249+
LL | let _ = map.iter().map(|(key, _)| key).collect::<Vec<_>>();
250+
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `map.keys()`
251+
252+
error: iterating on a map's values
253+
--> $DIR/iter_kv_map.rs:134:13
254+
|
255+
LL | let _ = map.iter().map(|(_, value)| value).collect::<Vec<_>>();
256+
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `map.values()`
257+
258+
error: iterating on a map's values
259+
--> $DIR/iter_kv_map.rs:136:13
260+
|
261+
LL | let _ = map.iter().map(|(_, v)| v + 2).collect::<Vec<_>>();
262+
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `map.values().map(|v| v + 2)`
263+
264+
error: aborting due to 38 previous errors
205265

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