src/librustc_codegen_ssa/callee.rs

   1 // Copyright 2018 The Rust Project Developers. See the COPYRIGHT
   2 // file at the top-level directory of this distribution and at
   3 // http://rust-lang.org/COPYRIGHT.
   4 //
   5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
   6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
   7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
   8 // option. This file may not be copied, modified, or distributed
   9 // except according to those terms.
  10
  11 use traits::*;
  12 use rustc::ty;
  13 use rustc::ty::subst::Substs;
  14 use rustc::hir::def_id::DefId;
  15
  16 pub fn resolve_and_get_fn<'tcx, Cx: CodegenMethods<'tcx>>(
  17     cx: &Cx,
  18     def_id: DefId,
  19     substs: &'tcx Substs<'tcx>,
  20 ) -> Cx::Value {
  21     cx.get_fn(
  22         ty::Instance::resolve(
  23             cx.tcx(),
  24             ty::ParamEnv::reveal_all(),
  25             def_id,
  26             substs
  27         ).unwrap()
  28     )
  29 }
  30
  31 pub fn resolve_and_get_fn_for_vtable<'tcx,
  32     Cx: Backend<'tcx> + MiscMethods<'tcx> + TypeMethods<'tcx>
  33 >(
  34     cx: &Cx,
  35     def_id: DefId,
  36     substs: &'tcx Substs<'tcx>,
  37 ) -> Cx::Value {
  38     cx.get_fn(
  39         ty::Instance::resolve_for_vtable(
  40             cx.tcx(),
  41             ty::ParamEnv::reveal_all(),
  42             def_id,
  43             substs
  44         ).unwrap()
  45     )
  46 }