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1 | // Copyright 2014 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 | ||
54a0048b | 11 | use rustc::hir::def_id::DefId; |
5bcae85e | 12 | use base::push_ctxt; |
54a0048b | 13 | use common::*; |
5bcae85e | 14 | use monomorphize::Instance; |
1a4d82fc | 15 | |
9cc50fc6 | 16 | use rustc::dep_graph::DepNode; |
1a4d82fc | 17 | |
9cc50fc6 | 18 | fn instantiate_inline(ccx: &CrateContext, fn_id: DefId) -> Option<DefId> { |
62682a34 SL |
19 | debug!("instantiate_inline({:?})", fn_id); |
20 | let _icx = push_ctxt("instantiate_inline"); | |
54a0048b SL |
21 | let tcx = ccx.tcx(); |
22 | let _task = tcx.dep_graph.in_task(DepNode::TransInlinedItem(fn_id)); | |
62682a34 | 23 | |
5bcae85e SL |
24 | tcx.sess |
25 | .cstore | |
26 | .maybe_get_item_ast(tcx, fn_id) | |
27 | .map(|(_, inline_id)| { | |
28 | tcx.map.local_def_id(inline_id) | |
29 | }) | |
1a4d82fc JJ |
30 | } |
31 | ||
e9174d1e SL |
32 | pub fn get_local_instance(ccx: &CrateContext, fn_id: DefId) |
33 | -> Option<DefId> { | |
b039eaaf | 34 | if let Some(_) = ccx.tcx().map.as_local_node_id(fn_id) { |
1a4d82fc JJ |
35 | Some(fn_id) |
36 | } else { | |
37 | instantiate_inline(ccx, fn_id) | |
38 | } | |
39 | } | |
40 | ||
e9174d1e | 41 | pub fn maybe_instantiate_inline(ccx: &CrateContext, fn_id: DefId) -> DefId { |
1a4d82fc JJ |
42 | get_local_instance(ccx, fn_id).unwrap_or(fn_id) |
43 | } | |
5bcae85e SL |
44 | |
45 | pub fn maybe_inline_instance<'a, 'tcx>(ccx: &CrateContext<'a, 'tcx>, | |
46 | instance: Instance<'tcx>) -> Instance<'tcx> { | |
47 | let def_id = maybe_instantiate_inline(ccx, instance.def); | |
48 | Instance { | |
49 | def: def_id, | |
50 | substs: instance.substs | |
51 | } | |
52 | } |