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Rollup merge of #97798 - WaffleLapkin:allow_for_suggestions_that_are_quite_far_away_from_each_other, r=estebank

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Hide irrelevant lines in suggestions to allow for suggestions that are far from each other to be shown

This is an attempt to fix suggestions one part of which is 6 lines or more far from the first. I've noticed "the problem" (of not showing some parts of the suggestion) here: https://github.com/rust-lang/rust/pull/97759#discussion_r889689230.

I'm not sure about the implementation (this big closure is just bad and makes already complicated code even more so), but I want to at least discuss the result.

Here is an example of how this changes the output:

Before:
```text
help: consider enclosing expression in a block
  |
3 ~     'l: { match () { () => break 'l,
4 |
5 |
6 |
7 |
8 |
...
```

After:
```text
help: consider enclosing expression in a block
  |
3 ~     'l: { match () { () => break 'l,
4 |
...
31|
32~ } };
  |
```

r? `@estebank`
`@rustbot` label +A-diagnostics +A-suggestion-diagnostics
This commit is contained in:
Dylan DPC 2022-06-17 12:21:48 +02:00 committed by GitHub
commit 51e2d6a4a9
12 changed files with 102 additions and 21 deletions
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18
tests/ui/bind_instead_of_map_multipart.stderr
View file

@ -56,7 +56,25 @@ LL | if s == "43" {
LL ~ return 43;
LL | }
LL | s == "42"
LL | } {
LL ~ return 45;
LL | }
LL | match s.len() {
LL ~ 10 => 2,
LL | 20 => {
...
LL | if foo() {
LL ~ return 20;
LL | }
LL | println!("foo");
LL ~ 3
LL | };
LL | }
LL ~ 20
LL | },
LL ~ 40 => 30,
LL ~ _ => 1,
|
error: using `Option.and_then(|x| Some(y))`, which is more succinctly expressed as `map(|x| y)`
--> $DIR/bind_instead_of_map_multipart.rs:61:13

3
tests/ui/branches_sharing_code/shared_at_top_and_bottom.stderr
View file

@ -98,7 +98,8 @@ LL + id: e_id,
LL + name: "Player 1".to_string(),
LL + some_data: vec![0x12, 0x34, 0x56, 0x78, 0x90],
LL + };
...
LL + process_data(pack);
|
error: all if blocks contain the same code at both the start and the end
--> $DIR/shared_at_top_and_bottom.rs:94:5

41
tests/ui/entry.stderr
View file

@ -28,7 +28,8 @@ LL + v
LL + } else {
LL + v2
LL + }
...
LL + });
|
error: usage of `contains_key` followed by `insert` on a `HashMap`
--> $DIR/entry.rs:38:5
@ -50,7 +51,8 @@ LL + v
LL + } else {
LL + v2
LL + }
...
LL + });
|
error: usage of `contains_key` followed by `insert` on a `HashMap`
--> $DIR/entry.rs:47:5
@ -72,7 +74,9 @@ LL + e.insert(v);
LL + } else {
LL + e.insert(v2);
LL + return;
...
LL + }
LL + }
|
error: usage of `contains_key` followed by `insert` on a `HashMap`
--> $DIR/entry.rs:57:5
@ -111,7 +115,11 @@ LL + 1 if true => {
LL + v
LL + },
LL + _ => {
...
LL + v2
LL + },
LL + }
LL + });
|
error: usage of `contains_key` followed by `insert` on a `HashMap`
--> $DIR/entry.rs:75:5
@ -133,7 +141,9 @@ LL + 0 => foo(),
LL + _ => {
LL + e.insert(v2);
LL + },
...
LL + };
LL + }
|
error: usage of `contains_key` followed by `insert` on a `HashMap`
--> $DIR/entry.rs:85:5
@ -155,7 +165,26 @@ LL + match 0 {
LL + 0 if false => {
LL + v
LL + },
...
LL + 1 => {
LL + foo();
LL + v
LL + },
LL + 2 | 3 => {
LL + for _ in 0..2 {
LL + foo();
LL + }
LL + if true {
LL + v
LL + } else {
LL + v2
LL + }
LL + },
LL + _ => {
LL + v2
LL + },
LL + }
LL + });
|
error: usage of `contains_key` followed by `insert` on a `HashMap`
--> $DIR/entry.rs:119:5

17
tests/ui/entry_with_else.stderr
View file

@ -17,7 +17,9 @@ LL + e.insert(v);
LL + }
LL + std::collections::hash_map::Entry::Occupied(mut e) => {
LL + e.insert(v2);
...
LL + }
LL + }
|
error: usage of `contains_key` followed by `insert` on a `HashMap`
--> $DIR/entry_with_else.rs:22:5
@ -37,7 +39,9 @@ LL + e.insert(v);
LL + }
LL + std::collections::hash_map::Entry::Vacant(e) => {
LL + e.insert(v2);
...
LL + }
LL + }
|
error: usage of `contains_key` followed by `insert` on a `HashMap`
--> $DIR/entry_with_else.rs:28:5
@ -95,7 +99,9 @@ LL + e.insert(v);
LL + }
LL + std::collections::hash_map::Entry::Occupied(mut e) => {
LL + e.insert(v2);
...
LL + }
LL + }
|
error: usage of `contains_key` followed by `insert` on a `HashMap`
--> $DIR/entry_with_else.rs:46:5
@ -115,7 +121,10 @@ LL + if true { Some(e.insert(v)) } else { Some(e.insert(v2)) }
LL + }
LL + std::collections::hash_map::Entry::Vacant(e) => {
LL + e.insert(v);
...
LL + None
LL + }
LL ~ };
|
error: usage of `contains_key` followed by `insert` on a `HashMap`
--> $DIR/entry_with_else.rs:52:5

3
tests/ui/let_unit.stderr
View file

@ -32,7 +32,8 @@ LL + .map(|i| i * 2)
LL + .filter(|i| i % 2 == 0)
LL + .map(|_| ())
LL + .next()
...
LL + .unwrap();
|
error: this let-binding has unit value
--> $DIR/let_unit.rs:80:5

9
tests/ui/manual_async_fn.stderr
View file

@ -122,7 +122,14 @@ LL + let a = 42;
LL + let b = 21;
LL + if a < b {
LL + let c = 21;
...
LL + let d = 42;
LL + if c < d {
LL + let _ = 42;
LL + }
LL + }
LL + 42
LL + }
|
error: this function can be simplified using the `async fn` syntax
--> $DIR/manual_async_fn.rs:92:1

3
tests/ui/needless_for_each_unfixable.stderr
View file

@ -19,7 +19,8 @@ LL + return;
LL + } else {
LL + println!("{}", v);
LL + }
...
LL + }
|
help: ...and replace `return` with `continue`
|
LL | continue;

3
tests/ui/new_without_default.stderr
View file

@ -117,7 +117,8 @@ LL + Self::new()
LL + }
LL + }
LL +
...
LL ~ impl<T> Foo<T> {
|
error: aborting due to 7 previous errors

3
tests/ui/ptr_arg.stderr
View file

@ -56,7 +56,8 @@ LL | let f = e.clone(); // OK
LL | let g = x;
LL ~ let h = g.to_owned();
LL | let i = (e).clone();
...
LL ~ x.to_owned()
|
error: writing `&String` instead of `&str` involves a new object where a slice will do
--> $DIR/ptr_arg.rs:57:18

9
tests/ui/significant_drop_in_scrutinee.stderr
View file

@ -188,7 +188,9 @@ LL + _ => mutex2.lock().unwrap(),
LL + }
LL + .s
LL + .len()
...
LL + > 1;
LL ~ match value
|
error: temporary with significant drop in match scrutinee
--> $DIR/significant_drop_in_scrutinee.rs:397:11
@ -211,7 +213,10 @@ LL + } else {
LL + mutex2.lock().unwrap()
LL + }
LL + .s
...
LL + .len()
LL + > 1;
LL ~ match value
|
error: temporary with significant drop in match scrutinee
--> $DIR/significant_drop_in_scrutinee.rs:451:11

8
tests/ui/unit_arg.stderr
View file

@ -137,7 +137,13 @@ LL + foo(1);
LL + };
LL + {
LL + foo(2);
...
LL + foo(3);
LL + };
LL + taking_multiple_units(
LL + (),
LL + (),
LL ~ );
|
error: passing a unit value to a function
--> $DIR/unit_arg.rs:85:13

6
tests/ui/unnecessary_wraps.stderr
View file

@ -23,7 +23,8 @@ LL | if a {
LL | Some(-1);
LL ~ 2
LL | } else {
...
LL ~ return 1337;
|
error: this function's return value is unnecessarily wrapped by `Option`
--> $DIR/unnecessary_wraps.rs:21:1
@ -122,7 +123,8 @@ LL | if a {
LL | Some(());
LL ~
LL | } else {
...
LL ~ return ;
|
error: this function's return value is unnecessary
--> $DIR/unnecessary_wraps.rs:117:1