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simplify unit type check

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Signed-off-by: tabokie <xy.tao@outlook.com>
This commit is contained in:
tabokie 2022-08-02 11:37:44 +08:00
parent a5a6c95da8
commit 9ab6146afe
1 changed files with 1 additions and 5 deletions
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6
clippy_lints/src/map_unit_fn.rs
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@ -97,11 +97,7 @@ declare_clippy_lint! {
declare_lint_pass!(MapUnit => [OPTION_MAP_UNIT_FN, RESULT_MAP_UNIT_FN]); declare_lint_pass!(MapUnit => [OPTION_MAP_UNIT_FN, RESULT_MAP_UNIT_FN]);
fn is_unit_type(ty: Ty<'_>) -> bool { fn is_unit_type(ty: Ty<'_>) -> bool {
match ty.kind() { ty.is_unit() || ty.is_never()
ty::Tuple(slice) => slice.is_empty(),
ty::Never => true,
_ => false,
}
} }
fn is_unit_function(cx: &LateContext<'_>, expr: &hir::Expr<'_>) -> bool { fn is_unit_function(cx: &LateContext<'_>, expr: &hir::Expr<'_>) -> bool {