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Complete reference &T -> &&T #21289

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@A4-Tacks A4-Tacks commented Dec 17, 2025 •
edited by rustbot
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Partial of #21278

Example

struct S;
fn foo(s: &&S) {}
fn main() {
    let mut ssss = &S;
    foo($0);
}

Before this PR

st S S []
lc ssss &S [local]
st S S []
fn foo(…) fn(&&S) []
fn main() fn() []

After this PR

st S S []
lc ssss &S [local]
lc &ssss [type+local]
st S S []
fn foo(…) fn(&&S) []
fn main() fn() []

@A4-Tacks
Complete reference &T -> &&T
dc15b9b 
Example
---
```rust
struct S;
fn foo(s: &&S) {}
fn main() {
    let mut ssss = &S;
    foo($0);
}
```

**Before this PR**

```rust
st S S []
lc ssss &S [local]
st S S []
fn foo(…) fn(&&S) []
fn main() fn() []
```

**After this PR**

```rust
st S S []
lc ssss &S [local]
lc &ssss [type+local]
st S S []
fn foo(…) fn(&&S) []
fn main() fn() []
```
@rustbot rustbot added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Dec 17, 2025
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