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Simplify if_chain.

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mlegner 2020-03-04 10:12:11 +01:00
parent d14fdc0203
commit 185fa0d1b1
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1 changed files with 14 additions and 16 deletions
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30
clippy_lints/src/types.rs
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@ -1214,23 +1214,21 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for Casts {
if let LitKind::Int(n, _) = lit.node; if let LitKind::Int(n, _) = lit.node;
if let Some(src) = snippet_opt(cx, lit.span); if let Some(src) = snippet_opt(cx, lit.span);
if cast_to.is_floating_point(); if cast_to.is_floating_point();
if let Some(num_lit) = NumericLiteral::from_lit_kind(&src, &lit.node);
let from_nbits = 128 - n.leading_zeros();
let to_nbits = fp_ty_mantissa_nbits(cast_to);
if from_nbits != 0 && to_nbits != 0 && from_nbits <= to_nbits && num_lit.is_decimal();
then { then {
let from_nbits = 128 - n.leading_zeros(); span_lint_and_sugg(
let to_nbits = fp_ty_mantissa_nbits(cast_to); cx,
if let Some(num_lit) = NumericLiteral::from_lit_kind(&src, &lit.node) { UNNECESSARY_CAST,
if from_nbits != 0 && to_nbits != 0 && from_nbits <= to_nbits && num_lit.is_decimal() { expr.span,
span_lint_and_sugg( &format!("casting integer literal to `{}` is unnecessary", cast_to),
cx, "try",
UNNECESSARY_CAST, format!("{}_{}", n, cast_to),
expr.span, Applicability::MachineApplicable,
&format!("casting integer literal to `{}` is unnecessary", cast_to), );
"try", return;
format!("{}_{}", n, cast_to),
Applicability::MachineApplicable,
);
return;
}
}
} }
} }
match lit.node { match lit.node {