bjoernager/rust
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Use more slice patterns inside the compiler

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This commit is contained in:
León Orell Valerian Liehr 2024-08-07 12:41:49 +02:00
parent 60d146580c
commit c4c518d2d4
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GPG key ID: D17A07215F68E713
40 changed files with 191 additions and 221 deletions
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14
compiler/rustc_attr/src/builtin.rs
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@ -665,12 +665,12 @@ pub fn eval_condition(
res & eval_condition(mi.meta_item().unwrap(), sess, features, eval)
}),
sym::not => {
if mis.len() != 1 {
let [mi] = mis.as_slice() else {
dcx.emit_err(session_diagnostics::ExpectedOneCfgPattern { span: cfg.span });
return false;
}
};
!eval_condition(mis[0].meta_item().unwrap(), sess, features, eval)
!eval_condition(mi.meta_item().unwrap(), sess, features, eval)
}
sym::target => {
if let Some(features) = features
@ -1051,10 +1051,10 @@ pub fn parse_repr_attr(sess: &Session, attr: &Attribute) -> Vec<ReprAttr> {
MetaItemKind::List(nested_items) => {
if meta_item.has_name(sym::align) {
recognised = true;
if nested_items.len() == 1 {
if let [nested_item] = nested_items.as_slice() {
sess.dcx().emit_err(
session_diagnostics::IncorrectReprFormatExpectInteger {
span: nested_items[0].span(),
span: nested_item.span(),
},
);
} else {
@ -1066,10 +1066,10 @@ pub fn parse_repr_attr(sess: &Session, attr: &Attribute) -> Vec<ReprAttr> {
}
} else if meta_item.has_name(sym::packed) {
recognised = true;
if nested_items.len() == 1 {
if let [nested_item] = nested_items.as_slice() {
sess.dcx().emit_err(
session_diagnostics::IncorrectReprFormatPackedExpectInteger {
span: nested_items[0].span(),
span: nested_item.span(),
},
);
} else {