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Merge pull request #651 from dtolnay/slices

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Enable slices and arrays containing str/slice
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David Tolnay 2021-01-02 23:24:26 -08:00 committed by GitHub
commit 2e040531f3
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1 changed files with 6 additions and 9 deletions
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15
syntax/check.rs
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@ -234,11 +234,11 @@ fn check_type_ref(cx: &mut Check, ty: &Ref) {
}
fn check_type_slice_ref(cx: &mut Check, ty: &SliceRef) {
let supported = match &ty.inner {
Type::Str(_) | Type::SliceRef(_) => false,
Type::Ident(ident) => !is_unsized(cx, &ty.inner) || cx.types.rust.contains(&ident.rust),
element => !is_unsized(cx, element),
};
let supported = !is_unsized(cx, &ty.inner)
|| match &ty.inner {
Type::Ident(ident) => cx.types.rust.contains(&ident.rust),
_ => false,
};
if !supported {
let mutable = if ty.mutable { "mut " } else { "" };
@ -253,10 +253,7 @@ fn check_type_slice_ref(cx: &mut Check, ty: &SliceRef) {
}
fn check_type_array(cx: &mut Check, ty: &Array) {
let supported = match &ty.inner {
Type::Str(_) | Type::SliceRef(_) => false,
element => !is_unsized(cx, element),
};
let supported = !is_unsized(cx, &ty.inner);
if !supported {
cx.error(ty, "unsupported array element type");