Suggest ok_or over map_or when possible

[chubei]

What it does

Check for usage of _.map_or(Err(_), Ok).

Lint Name

option_map_or_err_ok

Category

pedantic

Advantage

• Readability: this can be written more concisely as _.ok_or(_).

Drawbacks

No response

Example

opt.map_or(Err(e), Ok);

Could be written as:

opt.ok_or(e);