Merge #6320 #6321

6320: Textmate grammar: prevent line comments from breaking block comments (closes #6281) r=matklad a=dustypomerleau

Fixes https://github.com/rust-analyzer/rust-analyzer/issues/6281.

Previously, line comments were able to break block comments by essentially commenting out the closing `*/`, resulting in a never-ending comment. This PR splits block comments into a separate repository group to fix this problem.

Since the comment scopes also include ignored parameters and inferred types, I've added the change proposed by @bnjjj in https://github.com/rust-analyzer/rust-analyzer/pull/6317, in order to close https://github.com/rust-analyzer/rust-analyzer/issues/6311 as well.

6321: Fix opening module documentation opening parent documentation instead r=matklad a=zacps

The whole path/URL joining code is kind of ugly which is what led to
this, but at the same time I don't really want to rewrite it right
now...

Fixes https://github.com/rust-analyzer/rust-analyzer/issues/6286

Co-authored-by: Dusty Pomerleau <dustypomerleau@users.noreply.github.com>
Co-authored-by: Zac Pullar-Strecker <zacmps@gmail.com>

crates/ide/src/doc_links.rs

@@ -132,7 +132,8 @@ fn get_doc_link(db: &RootDatabase, definition: Definition) -> Option<String> {
     let import_map = db.import_map(krate.into());
     let base = once(krate.display_name(db)?.to_string())
         .chain(import_map.path_of(ns)?.segments.iter().map(|name| name.to_string()))
-        .join("/");
+        .join("/")
+        + "/";
 
     let filename = get_symbol_filename(db, &target_def);
     let fragment = match definition {
@@ -152,9 +153,16 @@ fn get_doc_link(db: &RootDatabase, definition: Definition) -> Option<String> {
         _ => None,
     };
 
-    get_doc_url(db, &krate)
+    get_doc_url(db, &krate)?
-        .and_then(|url| url.join(&base).ok())
+        .join(&base)
-        .and_then(|url| filename.as_deref().and_then(|f| url.join(f).ok()))
+        .ok()
+        .and_then(|mut url| {
+            if !matches!(definition, Definition::ModuleDef(ModuleDef::Module(..))) {
+                url.path_segments_mut().ok()?.pop();
+            };
+            Some(url)
+        })
+        .and_then(|url| url.join(filename.as_deref()?).ok())
         .and_then(
             |url| if let Some(fragment) = fragment { url.join(&fragment).ok() } else { Some(url) },
         )
@@ -522,6 +530,18 @@ pub struct Foo {
         );
     }
 
+    #[test]
+    fn test_module() {
+        check(
+            r#"
+pub mod foo {
+    pub mod ba<|>r {}
+}
+        "#,
+            expect![[r#"https://docs.rs/test/*/test/foo/bar/index.html"#]],
+        )
+    }
+
     // FIXME: ImportMap will return re-export paths instead of public module
     // paths. The correct path to documentation will never be a re-export.
     // This problem stops us from resolving stdlib items included in the prelude

editors/code/rust.tmGrammar.json

@@ -24,6 +24,9 @@
                 }
             },
             "patterns": [
+                {
+                    "include": "#block-comments"
+                },
                 {
                     "include": "#comments"
                 },
@@ -184,6 +187,9 @@
                 }
             },
             "patterns": [
+                {
+                    "include": "#block-comments"
+                },
                 {
                     "include": "#comments"
                 },
@@ -211,6 +217,9 @@
                 }
             },
             "patterns": [
+                {
+                    "include": "#block-comments"
+                },
                 {
                     "include": "#comments"
                 },
@@ -231,6 +240,9 @@
                 }
             ]
         },
+        {
+            "include": "#block-comments"
+        },
         {
             "include": "#comments"
         },
@@ -277,23 +289,22 @@
                 {
                     "comment": "documentation comments",
                     "name": "comment.line.documentation.rust",
-                    "match": "^\\s*///.*",
+                    "match": "^\\s*///.*"
-                    "patterns": [
-                        {
-                            "include": "#comments"
-                        }
-                    ]
                 },
                 {
                     "comment": "line comments",
                     "name": "comment.line.double-slash.rust",
-                    "match": "\\s*//.*",
+                    "match": "\\s*//.*"
-                    "patterns": [
+                },
                 {
-                            "include": "#comments"
+                    "comment": "inferred types, wildcard patterns, ignored params",
+                    "name": "comment.char.underscore.rust",
+                    "match": "\\b_\\w*\\b[^!(]"
                 }
             ]
         },
+        "block-comments": {
+            "patterns": [
                 {
                     "comment": "block comments",
                     "name": "comment.block.rust",
@@ -301,7 +312,7 @@
                     "end": "\\*/",
                     "patterns": [
                         {
-                            "include": "#comments"
+                            "include": "#block-comments"
                         }
                     ]
                 },
@@ -312,14 +323,9 @@
                     "end": "\\*/",
                     "patterns": [
                         {
-                            "include": "#comments"
+                            "include": "#block-comments"
                         }
                     ]
-                },
-                {
-                    "comment": "inferred types, wildcard patterns, ignored params",
-                    "name": "comment.char.underscore.rust",
-                    "match": "\\b_\\w*\\b"
                 }
             ]
         },
@@ -450,6 +456,9 @@
                         }
                     },
                     "patterns": [
+                        {
+                            "include": "#block-comments"
+                        },
                         {
                             "include": "#comments"
                         },
@@ -516,6 +525,9 @@
                         }
                     },
                     "patterns": [
+                        {
+                            "include": "#block-comments"
+                        },
                         {
                             "include": "#comments"
                         },
@@ -797,6 +809,9 @@
                         }
                     },
                     "patterns": [
+                        {
+                            "include": "#block-comments"
+                        },
                         {
                             "include": "#comments"
                         },