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Add two setter functions to `Features`.

This commit is contained in:
Nicholas Nethercote 2023-10-05 16:33:42 +11:00
parent 95d1aa075f
commit 56fd2531ac
2 changed files with 21 additions and 11 deletions
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17
compiler/rustc_expand/src/config.rs
View File

@ -124,8 +124,7 @@ pub fn features(sess: &Session, krate_attrs: &[Attribute]) -> Features {
edition,
});
}
features.declared_lang_features.push((name, mi.span(), None));
features.declared_features.insert(name);
features.set_declared_lang_feature(name, mi.span(), None);
continue;
}
@ -139,8 +138,7 @@ pub fn features(sess: &Session, krate_attrs: &[Attribute]) -> Features {
feature: name,
edition: features_edition,
});
features.declared_lang_features.push((name, mi.span(), None));
features.declared_features.insert(name);
features.set_declared_lang_feature(name, mi.span(), None);
continue;
}
@ -158,8 +156,7 @@ pub fn features(sess: &Session, krate_attrs: &[Attribute]) -> Features {
// If the declared feature is stable, record it.
if let Some(Feature { since, .. }) = ACCEPTED_FEATURES.iter().find(|f| name == f.name) {
let since = Some(Symbol::intern(since));
features.declared_lang_features.push((name, mi.span(), since));
features.declared_features.insert(name);
features.set_declared_lang_feature(name, mi.span(), since);
continue;
}
@ -176,15 +173,13 @@ pub fn features(sess: &Session, krate_attrs: &[Attribute]) -> Features {
// If the declared feature is unstable, record it.
if let Some(f) = ACTIVE_FEATURES.iter().find(|f| name == f.name) {
f.set(&mut features);
features.declared_lang_features.push((name, mi.span(), None));
features.declared_features.insert(name);
features.set_declared_lang_feature(name, mi.span(), None);
continue;
}
// Otherwise, the feature is unknown. Record it at a lib feature.
// Otherwise, the feature is unknown. Record it as a lib feature.
// It will be checked later.
features.declared_lib_features.push((name, mi.span()));
features.declared_features.insert(name);
features.set_declared_lib_feature(name, mi.span());
}
}

15
compiler/rustc_feature/src/active.rs
View File

@ -70,6 +70,21 @@ macro_rules! declare_features {
}
impl Features {
pub fn set_declared_lang_feature(
&mut self,
symbol: Symbol,
span: Span,
since: Option<Symbol>
) {
self.declared_lang_features.push((symbol, span, since));
self.declared_features.insert(symbol);
}
pub fn set_declared_lib_feature(&mut self, symbol: Symbol, span: Span) {
self.declared_lib_features.push((symbol, span));
self.declared_features.insert(symbol);
}
pub fn walk_feature_fields(&self, mut f: impl FnMut(&str, bool)) {
$(f(stringify!($feature), self.$feature);)+
}