compiler/rustc_middle/src/middle/mod.rs

   1 pub mod codegen_fn_attrs;
   2 pub mod cstore;
   3 pub mod dependency_format;
   4 pub mod exported_symbols;
   5 pub mod lang_items;
   6 pub mod lib_features {
   7     use rustc_data_structures::fx::{FxHashMap, FxHashSet};
   8     use rustc_span::symbol::Symbol;
   9
  10     #[derive(HashStable)]
  11     pub struct LibFeatures {
  12         // A map from feature to stabilisation version.
  13         pub stable: FxHashMap<Symbol, Symbol>,
  14         pub unstable: FxHashSet<Symbol>,
  15     }
  16
  17     impl LibFeatures {
  18         pub fn to_vec(&self) -> Vec<(Symbol, Option<Symbol>)> {
  19             let mut all_features: Vec<_> = self
  20                 .stable
  21                 .iter()
  22                 .map(|(f, s)| (*f, Some(*s)))
  23                 .chain(self.unstable.iter().map(|f| (*f, None)))
  24                 .collect();
  25             all_features.sort_unstable_by_key(|f| f.0.as_str());
  26             all_features
  27         }
  28     }
  29 }
  30 pub mod limits;
  31 pub mod privacy;
  32 pub mod region;
  33 pub mod resolve_lifetime;
  34 pub mod stability;