66 lines
2.0 KiB
Rust
66 lines
2.0 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::ty::TyCtxt;
|
||
|
|
use syntax::abi::Abi;
|
||
|
|
|
||
|
|
pub fn collect<'a, 'tcx>(tcx: TyCtxt<'a, 'tcx, 'tcx>) -> Vec<String> {
|
||
|
|
let mut collector = Collector {
|
||
|
|
args: Vec::new(),
|
||
|
|
};
|
||
|
|
tcx.hir.krate().visit_all_item_likes(&mut collector);
|
||
|
|
|
||
|
|
for attr in tcx.hir.krate().attrs.iter() {
|
||
|
|
if attr.path == "link_args" {
|
||
|
|
if let Some(linkarg) = attr.value_str() {
|
||
|
|
collector.add_link_args(&linkarg.as_str());
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return collector.args
|
||
|
|
}
|
||
|
|
|
||
|
|
struct Collector {
|
||
|
|
args: Vec<String>,
|
||
|
|
}
|
||
|
|
|
||
|
|
impl<'tcx> ItemLikeVisitor<'tcx> for Collector {
|
||
|
|
fn visit_item(&mut self, it: &'tcx hir::Item) {
|
||
|
|
let fm = match it.node {
|
||
|
|
hir::ItemForeignMod(ref fm) => fm,
|
||
|
|
_ => return,
|
||
|
|
};
|
||
|
|
if fm.abi == Abi::Rust ||
|
||
|
|
fm.abi == Abi::RustIntrinsic ||
|
||
|
|
fm.abi == Abi::PlatformIntrinsic {
|
||
|
|
return
|
||
|
|
}
|
||
|
|
|
||
|
|
// First, add all of the custom #[link_args] attributes
|
||
|
|
for m in it.attrs.iter().filter(|a| a.check_name("link_args")) {
|
||
|
|
if let Some(linkarg) = m.value_str() {
|
||
|
|
self.add_link_args(&linkarg.as_str());
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
fn visit_trait_item(&mut self, _it: &'tcx hir::TraitItem) {}
|
||
|
|
fn visit_impl_item(&mut self, _it: &'tcx hir::ImplItem) {}
|
||
|
|
}
|
||
|
|
|
||
|
|
impl Collector {
|
||
|
|
fn add_link_args(&mut self, args: &str) {
|
||
|
|
self.args.extend(args.split(' ').filter(|s| !s.is_empty()).map(|s| s.to_string()))
|
||
|
|
}
|
||
|
|
}
|