From 5a78d96d0ea1e9d71d8bfe999b4af7cd1b85cebe Mon Sep 17 00:00:00 2001
From: Lukas Tobias Wirth <lukastw97@gmail.com>
Date: Tue, 4 May 2021 13:51:57 +0200
Subject: Fix block comment intra doc link injection ranges

---
 crates/hir_def/src/attr.rs                                   | 12 ++++++++----
 .../src/syntax_highlighting/test_data/highlight_doctest.html |  2 ++
 crates/ide/src/syntax_highlighting/tests.rs                  |  2 ++
 3 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/crates/hir_def/src/attr.rs b/crates/hir_def/src/attr.rs
index d9294d93a..0171d8a92 100644
--- a/crates/hir_def/src/attr.rs
+++ b/crates/hir_def/src/attr.rs
@@ -484,10 +484,10 @@ impl AttrsWithOwner {
         let mut buf = String::new();
         let mut mapping = Vec::new();
         for (doc, idx) in docs {
-            // str::lines doesn't yield anything for the empty string
             if !doc.is_empty() {
-                for line in doc.split('\n') {
-                    let line = line.trim_end();
+                let mut base_offset = 0;
+                for raw_line in doc.split('\n') {
+                    let line = raw_line.trim_end();
                     let line_len = line.len();
                     let (offset, line) = match line.char_indices().nth(indent) {
                         Some((offset, _)) => (offset, &line[offset..]),
@@ -498,9 +498,13 @@ impl AttrsWithOwner {
                     mapping.push((
                         TextRange::new(buf_offset.try_into().ok()?, buf.len().try_into().ok()?),
                         idx,
-                        TextRange::new(offset.try_into().ok()?, line_len.try_into().ok()?),
+                        TextRange::at(
+                            (base_offset + offset).try_into().ok()?,
+                            line_len.try_into().ok()?,
+                        ),
                     ));
                     buf.push('\n');
+                    base_offset += raw_line.len() + 1;
                 }
             } else {
                 buf.push('\n');
diff --git a/crates/ide/src/syntax_highlighting/test_data/highlight_doctest.html b/crates/ide/src/syntax_highlighting/test_data/highlight_doctest.html
index 638f42c2f..8d83ba206 100644
--- a/crates/ide/src/syntax_highlighting/test_data/highlight_doctest.html
+++ b/crates/ide/src/syntax_highlighting/test_data/highlight_doctest.html
@@ -142,6 +142,7 @@ It is beyond me why you'd use these when you got ///
 ```rust
 </span><span class="keyword injected">let</span><span class="none injected"> </span><span class="punctuation injected">_</span><span class="none injected"> </span><span class="operator injected">=</span><span class="none injected"> </span><span class="function injected">example</span><span class="parenthesis injected">(</span><span class="operator injected">&</span><span class="bracket injected">[</span><span class="numeric_literal injected">1</span><span class="comma injected">,</span><span class="none injected"> </span><span class="numeric_literal injected">2</span><span class="comma injected">,</span><span class="none injected"> </span><span class="numeric_literal injected">3</span><span class="bracket injected">]</span><span class="parenthesis injected">)</span><span class="semicolon injected">;</span><span class="comment documentation">
 ```
+</span><span class="function documentation injected intra_doc_link">[`block_comments2`]</span><span class="comment documentation"> tests these with indentation
  */</span>
 <span class="keyword">pub</span> <span class="keyword">fn</span> <span class="function declaration">block_comments</span><span class="parenthesis">(</span><span class="parenthesis">)</span> <span class="brace">{</span><span class="brace">}</span>
 
@@ -150,5 +151,6 @@ It is beyond me why you'd use these when you got ///
     ```rust
 </span><span class="comment documentation"> </span><span class="none injected">   </span><span class="keyword injected">let</span><span class="none injected"> </span><span class="punctuation injected">_</span><span class="none injected"> </span><span class="operator injected">=</span><span class="none injected"> </span><span class="function injected">example</span><span class="parenthesis injected">(</span><span class="operator injected">&</span><span class="bracket injected">[</span><span class="numeric_literal injected">1</span><span class="comma injected">,</span><span class="none injected"> </span><span class="numeric_literal injected">2</span><span class="comma injected">,</span><span class="none injected"> </span><span class="numeric_literal injected">3</span><span class="bracket injected">]</span><span class="parenthesis injected">)</span><span class="semicolon injected">;</span><span class="comment documentation">
     ```
+    </span><span class="function documentation injected intra_doc_link">[`block_comments`]</span><span class="comment documentation"> tests these without indentation
 */</span>
 <span class="keyword">pub</span> <span class="keyword">fn</span> <span class="function declaration">block_comments2</span><span class="parenthesis">(</span><span class="parenthesis">)</span> <span class="brace">{</span><span class="brace">}</span></code></pre>
\ No newline at end of file
diff --git a/crates/ide/src/syntax_highlighting/tests.rs b/crates/ide/src/syntax_highlighting/tests.rs
index 17cc6334b..b6e952b08 100644
--- a/crates/ide/src/syntax_highlighting/tests.rs
+++ b/crates/ide/src/syntax_highlighting/tests.rs
@@ -618,6 +618,7 @@ It is beyond me why you'd use these when you got ///
 ```rust
 let _ = example(&[1, 2, 3]);
 ```
+[`block_comments2`] tests these with indentation
  */
 pub fn block_comments() {}
 
@@ -626,6 +627,7 @@ pub fn block_comments() {}
     ```rust
     let _ = example(&[1, 2, 3]);
     ```
+    [`block_comments`] tests these without indentation
 */
 pub fn block_comments2() {}
 "#
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