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Add ide-assist: unmerge_else_if #20953

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Add ide-assist: unmerge_else_if #20953

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@A4-Tacks A4-Tacks commented Nov 1, 2025

Unmerge else if into the else {}.

Example

fn foo() {
    if cond1 {
        xxx()
    } else if$0 cond2 {
        yyy()
    } else {
        zzz()
    }
}

->

fn foo() {
    if cond1 {
        xxx()
    } else {
        if cond2 {
            yyy()
        } else {
            zzz()
        }
    }
}

@A4-Tacks
Add ide-assist: unmerge_else_if
c03ce23 
Unmerge `else if` into the `else {}`.

Example
---
```rust
fn foo() {
    if cond1 {
        xxx()
    } else if$0 cond2 {
        yyy()
    } else {
        zzz()
    }
}
```
->
```rust
fn foo() {
    if cond1 {
        xxx()
    } else {
        if cond2 {
            yyy()
        } else {
            zzz()
        }
    }
}
```
@rustbot rustbot added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Nov 1, 2025
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