src/linkage.rs

   1 use rustc::mir::mono::{Linkage as RLinkage, MonoItem, Visibility};
   2
   3 use crate::prelude::*;
   4
   5 pub(crate) fn get_clif_linkage(mono_item: MonoItem, linkage: RLinkage, visibility: Visibility) -> Linkage {
   6     match (linkage, visibility) {
   7         (RLinkage::External, Visibility::Default) => Linkage::Export,
   8         (RLinkage::Internal, Visibility::Default) => Linkage::Local,
   9         (RLinkage::External, Visibility::Hidden) => Linkage::Hidden,
  10         _ => panic!("{:?} = {:?} {:?}", mono_item, linkage, visibility),
  11     }
  12 }
  13
  14 pub(crate) fn get_static_ref_linkage(tcx: TyCtxt, def_id: DefId) -> Linkage {
  15     let fn_attrs = tcx.codegen_fn_attrs(def_id);
  16
  17     if let Some(linkage) = fn_attrs.linkage {
  18         match linkage {
  19             RLinkage::External => Linkage::Export,
  20             RLinkage::Internal => Linkage::Local,
  21             RLinkage::ExternalWeak | RLinkage::WeakAny => Linkage::Preemptible,
  22             _ => panic!("{:?}", linkage),
  23         }
  24     } else {
  25         Linkage::Import
  26     }
  27 }