49 lines
1.5 KiB
Rust
49 lines
1.5 KiB
Rust
|
// Copyright 2017 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::itemlikevisit::ItemLikeVisitor;
|
||
|
|
use rustc::hir;
|
||
|
|
use rustc::middle::cstore::ForeignModule;
|
||
|
|
use rustc::ty::TyCtxt;
|
||
|
|
|
||
|
|
pub fn collect<'a, 'tcx>(tcx: TyCtxt<'a, 'tcx, 'tcx>) -> Vec<ForeignModule> {
|
||
|
|
let mut collector = Collector {
|
||
|
|
tcx,
|
||
|
|
modules: Vec::new(),
|
||
|
|
};
|
||
|
|
tcx.hir.krate().visit_all_item_likes(&mut collector);
|
||
|
|
return collector.modules
|
||
|
|
}
|
||
|
|
|
||
|
|
struct Collector<'a, 'tcx: 'a> {
|
||
|
|
tcx: TyCtxt<'a, 'tcx, 'tcx>,
|
||
|
|
modules: Vec<ForeignModule>,
|
||
|
|
}
|
||
|
|
|
||
|
|
impl<'a, 'tcx> ItemLikeVisitor<'tcx> for Collector<'a, 'tcx> {
|
||
|
|
fn visit_item(&mut self, it: &'tcx hir::Item) {
|
||
|
|
let fm = match it.node {
|
||
|
|
hir::ItemForeignMod(ref fm) => fm,
|
||
|
|
_ => return,
|
||
|
|
};
|
||
|
|
|
||
|
|
let foreign_items = fm.items.iter()
|
||
|
|
.map(|it| self.tcx.hir.local_def_id(it.id))
|
||
|
|
.collect();
|
||
|
|
self.modules.push(ForeignModule {
|
||
|
|
foreign_items,
|
||
|
|
def_id: self.tcx.hir.local_def_id(it.id),
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
fn visit_trait_item(&mut self, _it: &'tcx hir::TraitItem) {}
|
||
|
|
fn visit_impl_item(&mut self, _it: &'tcx hir::ImplItem) {}
|
||
|
|
}
|