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