Adds lint for integer division #4195
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clippy_lints/src/integer_division.rs
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| then { | ||
| let (left_ty, right_ty) = (cx.tables.expr_ty(left), cx.tables.expr_ty(right)); | ||
| if left_ty.is_integral() && right_ty.is_integral() { | ||
| return true; |
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You can return this directly:
| return true; | |
| return left_ty.is_integral() && right_ty.is_integral(); |
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Done at b364eb7.
By the way, can we add a lint rule for that? Is this lintable?
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When I saw this, I also instantly that this could be linted. But this is pretty hard to lint and even harder / impossible inside a macro. This is only possible iff
if some_bool_expr {
return true;
}is the second to last expression and in every other case we return false. The needless_bool lint already lints the easy if _ { true } else { false } case. Maybe this could be extended. But this would have many edge cases.
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Thanks! @bors r+ |
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📌 Commit b364eb7 has been approved by |
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☀️ Test successful - checks-travis, status-appveyor |
Hi, folks! This is my first contribution to clippy and my first real piece of Rust code.
This is supposed to add a lint that warns for division of integers (#109). Please let me know if you need any changes.
Fixes #109
changelog: Add lint for integer division