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Handle constant arrays with single value

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This commit is contained in:
Marcin Serwin 2020-03-20 11:25:39 +01:00
parent 1bab67c72b
commit d3167c63f8
1 changed files with 11 additions and 0 deletions
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11
clippy_lints/src/consts.rs
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@ -356,6 +356,17 @@ impl<'c, 'cc> ConstEvalLateContext<'c, 'cc> {
Constant::F64(x) => Some(Constant::F64(x)),
_ => None,
},
(Some(Constant::Vec(vec)), _) => {
if !vec.is_empty() && vec.iter().all(|x| *x == vec[0]) {
match vec[0] {
Constant::F32(x) => Some(Constant::F32(x)),
Constant::F64(x) => Some(Constant::F64(x)),
_ => None,
}
} else {
None
}
},
_ => None,
}
}