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Add ide-assist: convert_to_format_string #20926

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Add ide-assist: convert_to_format_string #20926

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@A4-Tacks A4-Tacks commented Oct 28, 2025

Example

fn foo() {
    let n = 2;
    let s = "n: {n$0}";
}

->

fn foo() {
    let n = 2;
    let s = format!("n: {n}");
}

@rustbot rustbot added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Oct 28, 2025
@A4-Tacks
Add ide-assist: convert_to_format_string
ceeed40 
Example
---
```rust
fn foo() {
    let n = 2;
    let s = "n: {n$0}";
}
```
->
```rust
fn foo() {
    let n = 2;
    let s = format!("n: {n}");
}
```
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