allow needless_option_take to report for more cases #13684
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@Centri3 Are you able to find some time to review this PR or assign another reviewer? Thanks! |
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I'll be able to look the coming days 👍 |
| expr.span, | ||
| "called `Option::take()` on a temporary value", | ||
| Some(recv.span), | ||
| format!("`{function_name}` creates a temporary value"), |
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nit: I don't see this note being particularly useful. Usually it should explain why this is bad instead
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Thanks, I changed the note to the following:
`{function_name}` creates a temporary value, so calling take() has no effect.
| applicability, | ||
| ); | ||
| if !recv.is_syntactic_place_expr() && is_expr_option(cx, recv) { | ||
| if let Some(function_name) = is_creating_temporary_value(recv) { |
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nit: This function name is rather misleading. I'll suggest source_of_temporary_value
| // Returns the string of the function call that creates the temporary. | ||
| // When this function is called, we are reasonably certain that the ExprKind is either | ||
| // Call or MethodCall because we already checked that the expression is not | ||
| // is_syntactic_place_expr(). |
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nit: Please make this a doc comment
| NEEDLESS_OPTION_TAKE, | ||
| expr.span, | ||
| "called `Option::take()` on a temporary value", | ||
| Some(recv.span), |
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nit: Let's use None to allow the note to be inline.
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In general, needless_option_take should report whenever take() is called on a temporary value, not just when the temporary value is created by as_ref()
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Hi @Centri3, I have taken a look at your comments and made the appropriate changes. Please let me know if you need anything else from me, and thank you for the review! |
changelog:
fixes #13671
In general, needless_option_take should report whenever take() is called on a temporary value, not just when the temporary value is created by as_ref().
Also, we stop emitting machine applicable fixes in these cases, since sometimes the intention of the user is to actually clear the original option, in cases such as
option.as_mut().take().