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Auto merge of #88175 - camsteffen:let-desugar-span, r=Manishearth

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Add expansion to while desugar spans

In the same vein as #88163, this reverts a change in Clippy behavior as a result of #80357 (and reverts some `#[allow]`s): This changes `clippy::blocks_in_if_conditions` to not fire on `while` loops. Though we might actually want Clippy to lint those cases, we should introduce the change purposefully, with tests, and possibly under a different lint name.

The actual change here is to add a desugaring expansion to the spans when lowering a `while` loop.

r? `@Manishearth`
This commit is contained in:
bors 2021-10-03 21:44:10 +00:00
commit 87bb18e7c2
3 changed files with 11 additions and 14 deletions
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1
tests/ui/crashes/issues_loop_mut_cond.rs
View File

@ -1,4 +1,3 @@
#![allow(clippy::blocks_in_if_conditions)]
#![allow(dead_code)]
/// Issue: https://github.com/rust-lang/rust-clippy/issues/2596

2
tests/ui/infinite_loop.rs
View File

@ -1,5 +1,3 @@
#![allow(clippy::blocks_in_if_conditions)]
fn fn_val(i: i32) -> i32 {
unimplemented!()
}

22
tests/ui/infinite_loop.stderr
View File

@ -1,5 +1,5 @@
error: variables in the condition are not mutated in the loop body
--> $DIR/infinite_loop.rs:22:11
--> $DIR/infinite_loop.rs:20:11
|
LL | while y < 10 {
| ^^^^^^
@ -8,7 +8,7 @@ LL | while y < 10 {
= note: this may lead to an infinite or to a never running loop
error: variables in the condition are not mutated in the loop body
--> $DIR/infinite_loop.rs:27:11
--> $DIR/infinite_loop.rs:25:11
|
LL | while y < 10 && x < 3 {
| ^^^^^^^^^^^^^^^
@ -16,7 +16,7 @@ LL | while y < 10 && x < 3 {
= note: this may lead to an infinite or to a never running loop
error: variables in the condition are not mutated in the loop body
--> $DIR/infinite_loop.rs:34:11
--> $DIR/infinite_loop.rs:32:11
|
LL | while !cond {
| ^^^^^
@ -24,7 +24,7 @@ LL | while !cond {
= note: this may lead to an infinite or to a never running loop
error: variables in the condition are not mutated in the loop body
--> $DIR/infinite_loop.rs:78:11
--> $DIR/infinite_loop.rs:76:11
|
LL | while i < 3 {
| ^^^^^
@ -32,7 +32,7 @@ LL | while i < 3 {
= note: this may lead to an infinite or to a never running loop
error: variables in the condition are not mutated in the loop body
--> $DIR/infinite_loop.rs:83:11
--> $DIR/infinite_loop.rs:81:11
|
LL | while i < 3 && j > 0 {
| ^^^^^^^^^^^^^^
@ -40,7 +40,7 @@ LL | while i < 3 && j > 0 {
= note: this may lead to an infinite or to a never running loop
error: variables in the condition are not mutated in the loop body
--> $DIR/infinite_loop.rs:87:11
--> $DIR/infinite_loop.rs:85:11
|
LL | while i < 3 {
| ^^^^^
@ -48,7 +48,7 @@ LL | while i < 3 {
= note: this may lead to an infinite or to a never running loop
error: variables in the condition are not mutated in the loop body
--> $DIR/infinite_loop.rs:102:11
--> $DIR/infinite_loop.rs:100:11
|
LL | while i < 3 {
| ^^^^^
@ -56,7 +56,7 @@ LL | while i < 3 {
= note: this may lead to an infinite or to a never running loop
error: variables in the condition are not mutated in the loop body
--> $DIR/infinite_loop.rs:107:11
--> $DIR/infinite_loop.rs:105:11
|
LL | while i < 3 {
| ^^^^^
@ -64,7 +64,7 @@ LL | while i < 3 {
= note: this may lead to an infinite or to a never running loop
error: variables in the condition are not mutated in the loop body
--> $DIR/infinite_loop.rs:173:15
--> $DIR/infinite_loop.rs:171:15
|
LL | while self.count < n {
| ^^^^^^^^^^^^^^
@ -72,7 +72,7 @@ LL | while self.count < n {
= note: this may lead to an infinite or to a never running loop
error: variables in the condition are not mutated in the loop body
--> $DIR/infinite_loop.rs:181:11
--> $DIR/infinite_loop.rs:179:11
|
LL | while y < 10 {
| ^^^^^^
@ -82,7 +82,7 @@ LL | while y < 10 {
= help: rewrite it as `if cond { loop { } }`
error: variables in the condition are not mutated in the loop body
--> $DIR/infinite_loop.rs:188:11
--> $DIR/infinite_loop.rs:186:11
|
LL | while y < 10 {
| ^^^^^^