Rollup merge of rust-lang#49189 - GuillaumeGomez:fix-implied-shortcut-links, r=QuietMisdreavus

Fix automatic urls with backticks

Fixes rust-lang#49164.

r? @QuietMisdreavus

Author: kennytm

src/librustdoc/clean/mod.rs

@@ -929,7 +929,7 @@ fn ambiguity_error(cx: &DocContext, attrs: &Attributes,
                       select the {}",
                       disambig1, kind1, disambig2,
                       kind2))
-             .emit();
+      .emit();
 }
 
 /// Given an enum variant's def, return the def of its enum and the associated fragment
@@ -1074,6 +1074,7 @@ fn macro_resolve(cx: &DocContext, path_str: &str) -> Option<Def> {
     }
 }
 
+#[derive(Debug)]
 enum PathKind {
     /// can be either value or type, not a macro
     Unknown,
@@ -1082,7 +1083,7 @@ enum PathKind {
     /// values, functions, consts, statics, everything in the value namespace
     Value,
     /// types, traits, everything in the type namespace
-    Type
+    Type,
 }
 
 impl Clean<Attributes> for [ast::Attribute] {
@@ -1091,12 +1092,13 @@ impl Clean<Attributes> for [ast::Attribute] {
 
         if UnstableFeatures::from_environment().is_nightly_build() {
             let dox = attrs.collapsed_doc_value().unwrap_or_else(String::new);
-            for link in markdown_links(&dox) {
+            for ori_link in markdown_links(&dox) {
                 // bail early for real links
-                if link.contains('/') {
+                if ori_link.contains('/') {
                     continue;
                 }
-                let (def, fragment)  = {
+                let link = ori_link.replace("`", "");
+                let (def, fragment) = {
                     let mut kind = PathKind::Unknown;
                     let path_str = if let Some(prefix) =
                         ["struct@", "enum@", "type@",
@@ -1132,7 +1134,6 @@ impl Clean<Attributes> for [ast::Attribute] {
                         continue;
                     }
 
-
                     match kind {
                         PathKind::Value => {
                             if let Ok(def) = resolve(cx, path_str, true) {
@@ -1206,9 +1207,8 @@ impl Clean<Attributes> for [ast::Attribute] {
                     }
                 };
 
-
                 let id = register_def(cx, def);
-                attrs.links.push((link, id, fragment));
+                attrs.links.push((ori_link, id, fragment));
             }
 
             cx.sess().abort_if_errors();

src/librustdoc/html/markdown.rs

@@ -233,14 +233,14 @@ impl<'a, I: Iterator<Item = Event<'a>>> Iterator for CodeBlocks<'a, I> {
 /// Make headings links with anchor ids and build up TOC.
 struct LinkReplacer<'a, 'b, I: Iterator<Item = Event<'a>>> {
     inner: I,
-    links: &'b [(String, String)]
+    links: &'b [(String, String)],
 }
 
 impl<'a, 'b, I: Iterator<Item = Event<'a>>> LinkReplacer<'a, 'b, I> {
     fn new(iter: I, links: &'b [(String, String)]) -> Self {
         LinkReplacer {
             inner: iter,
-            links
+            links,
         }
     }
 }

src/test/rustdoc/check-styled-link.rs

@@ -0,0 +1,18 @@
+// Copyright 2018 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.
+
+#![crate_name = "foo"]
+
+pub struct Foo;
+
+// @has foo/struct.Bar.html '//a[@href="../foo/struct.Foo.html"]' 'Foo'
+
+/// Code-styled reference to [`Foo`].
+pub struct Bar;