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Support nested cfg_attr attributes

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This commit is contained in:
Jeffrey Seyfried 2016-06-11 04:58:15 +00:00
parent 7d2f75a953
commit 65d256e82a
2 changed files with 15 additions and 1 deletions
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2
src/libsyntax/config.rs
View File

@ -78,7 +78,7 @@ impl<'a> StripUnconfigured<'a> {
};
if attr::cfg_matches(self.config, &cfg, &mut self.diag) {
Some(respan(mi.span, ast::Attribute_ {
self.process_cfg_attr(respan(mi.span, ast::Attribute_ {
id: attr::mk_attr_id(),
style: attr.node.style,
value: mi.clone(),

14
src/test/compile-fail/nested-cfg-attrs.rs Normal file
View File

@ -0,0 +1,14 @@
// Copyright 2016 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.
#[cfg_attr(all(), cfg_attr(all(), cfg(foo)))]
fn f() {}
fn main() { f() } //~ ERROR unresolved name `f`