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// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
use rustc::hir::def_id::DefId;
use base::push_ctxt;
use common::*;
use monomorphize::Instance;
use rustc::dep_graph::DepNode;
fn instantiate_inline(ccx: &CrateContext, fn_id: DefId) -> Option<DefId> {
debug!("instantiate_inline({:?})", fn_id);
let _icx = push_ctxt("instantiate_inline");
let tcx = ccx.tcx();
let _task = tcx.dep_graph.in_task(DepNode::TransInlinedItem(fn_id));
tcx.sess
.cstore
.maybe_get_item_ast(tcx, fn_id)
.map(|(_, inline_id)| {
tcx.map.local_def_id(inline_id)
})
}
pub fn get_local_instance(ccx: &CrateContext, fn_id: DefId)
-> Option<DefId> {
if let Some(_) = ccx.tcx().map.as_local_node_id(fn_id) {
Some(fn_id)
} else {
instantiate_inline(ccx, fn_id)
}
}
pub fn maybe_instantiate_inline(ccx: &CrateContext, fn_id: DefId) -> DefId {
get_local_instance(ccx, fn_id).unwrap_or(fn_id)
}
pub fn maybe_inline_instance<'a, 'tcx>(ccx: &CrateContext<'a, 'tcx>,
instance: Instance<'tcx>) -> Instance<'tcx> {
let def_id = maybe_instantiate_inline(ccx, instance.def);
Instance {
def: def_id,
substs: instance.substs
}
}
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