qdegraaf 8314c8bb05 [typing] Add find_assigned_value helper func to typing.rs to retrieve value of a given variable id (#8583) ...

## Summary

Adds `find_assigned_value` a function which gets the `&Expr` assigned to
a given `id` if one exists in the semantic model.

Open TODOs:

- [ ] Handle `binding.kind.is_unpacked_assignment()`: I am bit confused
by this one. The snippet from its documentation does not appear to be
counted as an unpacked assignment and the only ones I could find for
which that was true were invalid Python like:
```python
x, y = 1 
```
- [ ] How to handle AugAssign. Can we combine statements like:
```python
(a, b) = [(1, 2, 3), (4,)]
a += (6, 7)
```
to get the full value for a? Code currently just returns `None` for
these assign types

- [ ] Multi target assigns
```python
m_c = (m_d, m_e) = (0, 0)
trio.sleep(m_c)  # OK
trio.sleep(m_d)  # TRIO115
trio.sleep(m_e)  # TRIO115
```

## Test Plan

Used the function in two rules:

- `TRIO115`
- `PERF101`

Expanded both their fixtures for explicit multi target check

2023-12-13 00:24:47 +00:00

..

src

[typing] Add find_assigned_value helper func to typing.rs to retrieve value of a given variable id (#8583)

2023-12-13 00:24:47 +00:00

Cargo.toml

Update to Rust 1.74 and use new clippy lints table (#8722)

2023-11-16 18:12:46 -05:00