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Auto merge of #34546 - jseyfried:cfg_attr_path, r=nrc

Support `cfg_attr` on `path` attributes

Fixes #25544.
This is technically a [breaking-change]. For example, the following would break:
```rust
mod foo; // Suppose `foo.rs` existed in the appropriate location
```
This commit is contained in:
bors 2016-07-06 00:34:51 -07:00 committed by GitHub
commit 47380768e7
3 changed files with 22 additions and 3 deletions

View file

@ -5296,15 +5296,22 @@ impl<'a> Parser<'a> {
/// Parse a `mod <foo> { ... }` or `mod <foo>;` item
fn parse_item_mod(&mut self, outer_attrs: &[Attribute]) -> PResult<'a, ItemInfo> {
let outer_attrs = ::config::StripUnconfigured {
config: &self.cfg,
sess: self.sess,
should_test: false, // irrelevant
features: None, // don't perform gated feature checking
}.process_cfg_attrs(outer_attrs.to_owned());
let id_span = self.span;
let id = self.parse_ident()?;
if self.check(&token::Semi) {
self.bump();
// This mod is in an external file. Let's go get it!
let (m, attrs) = self.eval_src_mod(id, outer_attrs, id_span)?;
let (m, attrs) = self.eval_src_mod(id, &outer_attrs, id_span)?;
Ok((id, m, Some(attrs)))
} else {
self.push_mod_path(id, outer_attrs);
self.push_mod_path(id, &outer_attrs);
self.expect(&token::OpenDelim(token::Brace))?;
let mod_inner_lo = self.span.lo;
let attrs = self.parse_inner_attributes()?;