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Use symbol in cfg

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This commit is contained in:
Lukas Wirth 2024-07-16 10:36:59 +02:00
parent 93024ad411
commit c30bdfcc84
22 changed files with 147 additions and 92 deletions
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16
crates/cfg/src/lib.rs
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@ -9,9 +9,10 @@ use std::fmt;
use rustc_hash::FxHashSet;
use intern::Symbol;
pub use cfg_expr::{CfgAtom, CfgExpr};
pub use dnf::DnfExpr;
use smol_str::SmolStr;
/// Configuration options used for conditional compilation on items with `cfg` attributes.
/// We have two kind of options in different namespaces: atomic options like `unix`, and
@ -48,11 +49,11 @@ impl CfgOptions {
cfg.fold(&|atom| self.enabled.contains(atom))
}
pub fn insert_atom(&mut self, key: SmolStr) {
pub fn insert_atom(&mut self, key: Symbol) {
self.enabled.insert(CfgAtom::Flag(key));
}
pub fn insert_key_value(&mut self, key: SmolStr, value: SmolStr) {
pub fn insert_key_value(&mut self, key: Symbol, value: Symbol) {
self.enabled.insert(CfgAtom::KeyValue { key, value });
}
@ -66,19 +67,16 @@ impl CfgOptions {
}
}
pub fn get_cfg_keys(&self) -> impl Iterator<Item = &SmolStr> {
pub fn get_cfg_keys(&self) -> impl Iterator<Item = &Symbol> {
self.enabled.iter().map(|it| match it {
CfgAtom::Flag(key) => key,
CfgAtom::KeyValue { key, .. } => key,
})
}
pub fn get_cfg_values<'a>(
&'a self,
cfg_key: &'a str,
) -> impl Iterator<Item = &'a SmolStr> + 'a {
pub fn get_cfg_values<'a>(&'a self, cfg_key: &'a str) -> impl Iterator<Item = &'a Symbol> + 'a {
self.enabled.iter().filter_map(move |it| match it {
CfgAtom::KeyValue { key, value } if cfg_key == key => Some(value),
CfgAtom::KeyValue { key, value } if cfg_key == key.as_str() => Some(value),
_ => None,
})
}