5 files changed, 90 insertions, 36 deletions

diff --git a/docs/user/generated_assists.adoc b/docs/user/generated_assists.adoc
index b8cdfb1cd..580ab4358 100644
--- a/docs/user/generated_assists.adoc
+++ b/docs/user/generated_assists.adoc
@@ -1,5 +1,6 @@
 [discrete]
 === `add_custom_impl`
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_assists/src/handlers/add_custom_impl.rs#L14[add_custom_impl.rs]
 
 Adds impl block for derived trait.
 
@@ -22,6 +23,7 @@ impl Debug for S {
 
 [discrete]
 === `add_derive`
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_assists/src/handlers/add_derive.rs#L9[add_derive.rs]
 
 Adds a new `#[derive()]` clause to a struct or enum.
 
@@ -45,6 +47,7 @@ struct Point {
 
 [discrete]
 === `add_explicit_type`
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_assists/src/handlers/add_explicit_type.rs#L9[add_explicit_type.rs]
 
 Specify type for a let binding.
 
@@ -65,6 +68,7 @@ fn main() {
 
 [discrete]
 === `add_from_impl_for_enum`
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_assists/src/handlers/add_from_impl_for_enum.rs#L7[add_from_impl_for_enum.rs]
 
 Adds a From impl for an enum variant with one tuple field.
 
@@ -87,6 +91,7 @@ impl From<u32> for A {
 
 [discrete]
 === `add_function`
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_assists/src/handlers/add_function.rs#L19[add_function.rs]
 
 Adds a stub function with a signature matching the function under the cursor.
 
@@ -117,6 +122,7 @@ fn bar(arg: &str, baz: Baz) {
 
 [discrete]
 === `add_hash`
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_assists/src/handlers/raw_string.rs#L65[raw_string.rs]
 
 Adds a hash to a raw string literal.
 
@@ -137,6 +143,7 @@ fn main() {
 
 [discrete]
 === `add_impl`
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_assists/src/handlers/add_impl.rs#L6[add_impl.rs]
 
 Adds a new inherent impl for a type.
 
@@ -161,6 +168,7 @@ impl<T: Clone> Ctx<T> {
 
 [discrete]
 === `add_impl_default_members`
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_assists/src/handlers/add_missing_impl_members.rs#L64[add_missing_impl_members.rs]
 
 Adds scaffold for overriding default impl members.
 
@@ -198,6 +206,7 @@ impl Trait for () {
 
 [discrete]
 === `add_impl_missing_members`
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_assists/src/handlers/add_missing_impl_members.rs#L24[add_missing_impl_members.rs]
 
 Adds scaffold for required impl members.
 
@@ -233,6 +242,7 @@ impl Trait<u32> for () {
 
 [discrete]
 === `add_new`
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_assists/src/handlers/add_new.rs#L12[add_new.rs]
 
 Adds a new inherent impl for a type.
 
@@ -258,6 +268,7 @@ impl<T: Clone> Ctx<T> {
 
 [discrete]
 === `add_turbo_fish`
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_assists/src/handlers/add_turbo_fish.rs#L10[add_turbo_fish.rs]
 
 Adds `::<_>` to a call of a generic method or function.
 
@@ -280,6 +291,7 @@ fn main() {
 
 [discrete]
 === `apply_demorgan`
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_assists/src/handlers/apply_demorgan.rs#L5[apply_demorgan.rs]
 
 Apply [De Morgan's law](https://en.wikipedia.org/wiki/De_Morgan%27s_laws).
 This transforms expressions of the form `!l || !r` into `!(l && r)`.
@@ -304,6 +316,7 @@ fn main() {
 
 [discrete]
 === `auto_import`
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_assists/src/handlers/auto_import.rs#L18[auto_import.rs]
 
 If the name is unresolved, provides all possible imports for it.
 
@@ -326,6 +339,7 @@ fn main() {
 
 [discrete]
 === `change_lifetime_anon_to_named`
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_assists/src/handlers/change_lifetime_anon_to_named.rs#L9[change_lifetime_anon_to_named.rs]
 
 Change an anonymous lifetime to a named lifetime.
 
@@ -354,6 +368,7 @@ impl<'a> Cursor<'a> {
 
 [discrete]
 === `change_return_type_to_result`
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_assists/src/handlers/change_return_type_to_result.rs#L8[change_return_type_to_result.rs]
 
 Change the function's return type to Result.
 
@@ -370,6 +385,7 @@ fn foo() -> Result<i32, ${0:_}> { Ok(42i32) }
 
 [discrete]
 === `change_visibility`
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_assists/src/handlers/change_visibility.rs#L14[change_visibility.rs]
 
 Adds or changes existing visibility specifier.
 
@@ -386,6 +402,7 @@ pub(crate) fn frobnicate() {}
 
 [discrete]
 === `convert_to_guarded_return`
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_assists/src/handlers/early_return.rs#L21[early_return.rs]
 
 Replace a large conditional with a guarded return.
 
@@ -413,6 +430,7 @@ fn main() {
 
 [discrete]
 === `fill_match_arms`
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_assists/src/handlers/fill_match_arms.rs#L14[fill_match_arms.rs]
 
 Adds missing clauses to a `match` expression.
 
@@ -442,6 +460,7 @@ fn handle(action: Action) {
 
 [discrete]
 === `fix_visibility`
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_assists/src/handlers/fix_visibility.rs#L13[fix_visibility.rs]
 
 Makes inaccessible item public.
 
@@ -468,6 +487,7 @@ fn main() {
 
 [discrete]
 === `flip_binexpr`
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_assists/src/handlers/flip_binexpr.rs#L5[flip_binexpr.rs]
 
 Flips operands of a binary expression.
 
@@ -488,6 +508,7 @@ fn main() {
 
 [discrete]
 === `flip_comma`
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_assists/src/handlers/flip_comma.rs#L5[flip_comma.rs]
 
 Flips two comma-separated items.
 
@@ -508,6 +529,7 @@ fn main() {
 
 [discrete]
 === `flip_trait_bound`
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_assists/src/handlers/flip_trait_bound.rs#L9[flip_trait_bound.rs]
 
 Flips two trait bounds.
 
@@ -524,6 +546,7 @@ fn foo<T: Copy + Clone>() { }
 
 [discrete]
 === `inline_local_variable`
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_assists/src/handlers/inline_local_variable.rs#L13[inline_local_variable.rs]
 
 Inlines local variable.
 
@@ -545,6 +568,7 @@ fn main() {
 
 [discrete]
 === `introduce_variable`
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_assists/src/handlers/introduce_variable.rs#L14[introduce_variable.rs]
 
 Extracts subexpression into a variable.
 
@@ -566,6 +590,7 @@ fn main() {
 
 [discrete]
 === `invert_if`
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_assists/src/handlers/invert_if.rs#L12[invert_if.rs]
 
 Apply invert_if
 This transforms if expressions of the form `if !x {A} else {B}` into `if x {B} else {A}`
@@ -589,6 +614,7 @@ fn main() {
 
 [discrete]
 === `make_raw_string`
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_assists/src/handlers/raw_string.rs#L10[raw_string.rs]
 
 Adds `r#` to a plain string literal.
 
@@ -609,6 +635,7 @@ fn main() {
 
 [discrete]
 === `make_usual_string`
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_assists/src/handlers/raw_string.rs#L39[raw_string.rs]
 
 Turns a raw string into a plain string.
 
@@ -629,6 +656,7 @@ fn main() {
 
 [discrete]
 === `merge_imports`
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_assists/src/handlers/merge_imports.rs#L14[merge_imports.rs]
 
 Merges two imports with a common prefix.
 
@@ -646,6 +674,7 @@ use std::{fmt::Formatter, io};
 
 [discrete]
 === `merge_match_arms`
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_assists/src/handlers/merge_match_arms.rs#L11[merge_match_arms.rs]
 
 Merges identical match arms.
 
@@ -675,6 +704,7 @@ fn handle(action: Action) {
 
 [discrete]
 === `move_arm_cond_to_match_guard`
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_assists/src/handlers/move_guard.rs#L56[move_guard.rs]
 
 Moves if expression from match arm body into a guard.
 
@@ -705,6 +735,7 @@ fn handle(action: Action) {
 
 [discrete]
 === `move_bounds_to_where_clause`
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_assists/src/handlers/move_bounds.rs#L10[move_bounds.rs]
 
 Moves inline type bounds to a where clause.
 
@@ -725,6 +756,7 @@ fn apply<T, U, F>(f: F, x: T) -> U where F: FnOnce(T) -> U {
 
 [discrete]
 === `move_guard_to_arm_body`
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_assists/src/handlers/move_guard.rs#L8[move_guard.rs]
 
 Moves match guard into match arm body.
 
@@ -755,6 +787,7 @@ fn handle(action: Action) {
 
 [discrete]
 === `remove_dbg`
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_assists/src/handlers/remove_dbg.rs#L8[remove_dbg.rs]
 
 Removes `dbg!()` macro call.
 
@@ -775,6 +808,7 @@ fn main() {
 
 [discrete]
 === `remove_hash`
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_assists/src/handlers/raw_string.rs#L89[raw_string.rs]
 
 Removes a hash from a raw string literal.
 
@@ -795,6 +829,7 @@ fn main() {
 
 [discrete]
 === `remove_mut`
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_assists/src/handlers/remove_mut.rs#L5[remove_mut.rs]
 
 Removes the `mut` keyword.
 
@@ -815,6 +850,7 @@ impl Walrus {
 
 [discrete]
 === `reorder_fields`
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_assists/src/handlers/reorder_fields.rs#L10[reorder_fields.rs]
 
 Reorder the fields of record literals and record patterns in the same order as in
 the definition.
@@ -834,6 +870,7 @@ const test: Foo = Foo {foo: 1, bar: 0}
 
 [discrete]
 === `replace_if_let_with_match`
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_assists/src/handlers/replace_if_let_with_match.rs#L13[replace_if_let_with_match.rs]
 
 Replaces `if let` with an else branch with a `match` expression.
 
@@ -865,6 +902,7 @@ fn handle(action: Action) {
 
 [discrete]
 === `replace_let_with_if_let`
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_assists/src/handlers/replace_let_with_if_let.rs#L14[replace_let_with_if_let.rs]
 
 Replaces `let` with an `if-let`.
 
@@ -892,6 +930,7 @@ fn compute() -> Option<i32> { None }
 
 [discrete]
 === `replace_qualified_name_with_use`
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_assists/src/handlers/replace_qualified_name_with_use.rs#L6[replace_qualified_name_with_use.rs]
 
 Adds a use statement for a given fully-qualified name.
 
@@ -910,6 +949,7 @@ fn process(map: HashMap<String, String>) {}
 
 [discrete]
 === `replace_unwrap_with_match`
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_assists/src/handlers/replace_unwrap_with_match.rs#L17[replace_unwrap_with_match.rs]
 
 Replaces `unwrap` a `match` expression. Works for Result and Option.
 
@@ -937,6 +977,7 @@ fn main() {
 
 [discrete]
 === `split_import`
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_assists/src/handlers/split_import.rs#L7[split_import.rs]
 
 Wraps the tail of import into braces.
 
@@ -953,6 +994,7 @@ use std::{collections::HashMap};
 
 [discrete]
 === `unwrap_block`
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_assists/src/handlers/unwrap_block.rs#L9[unwrap_block.rs]
 
 This assist removes if...else, for, while and loop control statements to just keep the body.
 
diff --git a/docs/user/generated_features.adoc b/docs/user/generated_features.adoc
index 803073d55..12812fa0b 100644
--- a/docs/user/generated_features.adoc
+++ b/docs/user/generated_features.adoc
@@ -1,5 +1,5 @@
 === Expand Macro Recursively
-**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_ide/src/expand_macro.rs[expand_macro.rs]
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_ide/src/expand_macro.rs#L15[expand_macro.rs]
 
 Shows the full macro expansion of the macro at current cursor.
 
@@ -11,7 +11,7 @@ Shows the full macro expansion of the macro at current cursor.
 
 
 === Extend Selection
-**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_ide/src/extend_selection.rs[extend_selection.rs]
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_ide/src/extend_selection.rs#L15[extend_selection.rs]
 
 Extends the current selection to the encompassing syntactic construct
 (expression, statement, item, module, etc). It works with multiple cursors.
@@ -24,7 +24,7 @@ Extends the current selection to the encompassing syntactic construct
 
 
 === File Structure
-**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_ide/src/display/structure.rs[structure.rs]
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_ide/src/display/structure.rs#L17[structure.rs]
 
 Provides a tree of the symbols defined in the file. Can be used to
 
@@ -40,7 +40,7 @@ Provides a tree of the symbols defined in the file. Can be used to
 
 
 === Go to Definition
-**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_ide/src/goto_definition.rs[goto_definition.rs]
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_ide/src/goto_definition.rs#L18[goto_definition.rs]
 
 Navigates to the definition of an identifier.
 
@@ -52,7 +52,7 @@ Navigates to the definition of an identifier.
 
 
 === Go to Implementation
-**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_ide/src/goto_implementation.rs[goto_implementation.rs]
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_ide/src/goto_implementation.rs#L7[goto_implementation.rs]
 
 Navigates to the impl block of structs, enums or traits. Also implemented as a code lens.
 
@@ -64,7 +64,7 @@ Navigates to the impl block of structs, enums or traits. Also implemented as a c
 
 
 === Go to Type Definition
-**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_ide/src/goto_type_definition.rs[goto_type_definition.rs]
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_ide/src/goto_type_definition.rs#L6[goto_type_definition.rs]
 
 Navigates to the type of an identifier.
 
@@ -76,14 +76,14 @@ Navigates to the type of an identifier.
 
 
 === Hover
-**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_ide/src/hover.rs[hover.rs]
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_ide/src/hover.rs#L63[hover.rs]
 
 Shows additional information, like type of an expression or documentation for definition when "focusing" code.
 Focusing is usually hovering with a mouse, but can also be triggered with a shortcut.
 
 
 === Inlay Hints
-**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_ide/src/inlay_hints.rs[inlay_hints.rs]
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_ide/src/inlay_hints.rs#L40[inlay_hints.rs]
 
 rust-analyzer shows additional information inline with the source code.
 Editors usually render this using read-only virtual text snippets interspersed with code.
@@ -106,7 +106,7 @@ https://github.com/rust-analyzer/rust-analyzer/issues/1623[1], https://github.co
 
 
 === Join Lines
-**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_ide/src/join_lines.rs[join_lines.rs]
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_ide/src/join_lines.rs#L12[join_lines.rs]
 
 Join selected lines into one, smartly fixing up whitespace, trailing commas, and braces.
 
@@ -118,7 +118,7 @@ Join selected lines into one, smartly fixing up whitespace, trailing commas, and
 
 
 === Magic Completions
-**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_ide/src/completion.rs[completion.rs]
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_ide/src/completion.rs#L38[completion.rs]
 
 In addition to usual reference completion, rust-analyzer provides some ✨magic✨
 completions as well:
@@ -163,7 +163,7 @@ mod tests {
 
 
 === Matching Brace
-**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_ide/src/matching_brace.rs[matching_brace.rs]
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_ide/src/matching_brace.rs#L3[matching_brace.rs]
 
 If the cursor is on any brace (`<>(){}[]`) which is a part of a brace-pair,
 moves cursor to the matching brace. It uses the actual parser to determine
@@ -177,7 +177,7 @@ braces, so it won't confuse generics with comparisons.
 
 
 === On Typing Assists
-**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_ide/src/typing.rs[typing.rs]
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_ide/src/typing.rs#L35[typing.rs]
 
 Some features trigger on typing certain characters:
 
@@ -187,7 +187,7 @@ Some features trigger on typing certain characters:
 
 
 === Parent Module
-**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_ide/src/parent_module.rs[parent_module.rs]
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_ide/src/parent_module.rs#L12[parent_module.rs]
 
 Navigates to the parent module of the current module.
 
@@ -199,7 +199,7 @@ Navigates to the parent module of the current module.
 
 
 === Run
-**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_ide/src/runnables.rs[runnables.rs]
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_ide/src/runnables.rs#L45[runnables.rs]
 
 Shows a popup suggesting to run a test/benchmark/binary **at the current cursor
 location**. Super useful for repeatedly running just a single test. Do bind this
@@ -213,7 +213,7 @@ to a shortcut!
 
 
 === Semantic Syntax Highlighting
-**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_ide/src/syntax_highlighting.rs[syntax_highlighting.rs]
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_ide/src/syntax_highlighting.rs#L33[syntax_highlighting.rs]
 
 rust-analyzer highlights the code semantically.
 For example, `bar` in `foo::Bar` might be colored differently depending on whether `Bar` is an enum or a trait.
@@ -225,7 +225,7 @@ We also give special modifier for `mut` and `&mut` local variables.
 
 
 === Show Syntax Tree
-**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_ide/src/syntax_tree.rs[syntax_tree.rs]
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_ide/src/syntax_tree.rs#L9[syntax_tree.rs]
 
 Shows the parse tree of the current file. It exists mostly for debugging
 rust-analyzer itself.
@@ -238,7 +238,7 @@ rust-analyzer itself.
 
 
 === Status
-**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_ide/src/status.rs[status.rs]
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_ide/src/status.rs#L27[status.rs]
 
 Shows internal statistic about memory usage of rust-analyzer.
 
@@ -250,7 +250,7 @@ Shows internal statistic about memory usage of rust-analyzer.
 
 
 === Structural Seach and Replace
-**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_ide/src/ssr.rs[ssr.rs]
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_ide/src/ssr.rs#L26[ssr.rs]
 
 Search and replace with named wildcards that will match any expression.
 The syntax for a structural search replace command is `<search_pattern> ==>> <replace_pattern>`.
@@ -275,7 +275,7 @@ String::from((y + 5).foo(z))
 
 
 === Workspace Symbol
-**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_ide_db/src/symbol_index.rs[symbol_index.rs]
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_ide_db/src/symbol_index.rs#L113[symbol_index.rs]
 
 Uses fuzzy-search to find types, modules and functions by name across your
 project and dependencies. This is **the** most useful feature, which improves code
diff --git a/xtask/src/codegen.rs b/xtask/src/codegen.rs
index f3917a244..5511c01d5 100644
--- a/xtask/src/codegen.rs
+++ b/xtask/src/codegen.rs
@@ -61,18 +61,18 @@ fn update(path: &Path, contents: &str, mode: Mode) -> Result<()> {
 }
 
 fn extract_comment_blocks(text: &str) -> Vec<Vec<String>> {
-    do_extract_comment_blocks(text, false)
+    do_extract_comment_blocks(text, false).into_iter().map(|(_line, block)| block).collect()
 }
 
 fn extract_comment_blocks_with_empty_lines(tag: &str, text: &str) -> Vec<CommentBlock> {
     assert!(tag.starts_with(char::is_uppercase));
     let tag = format!("{}:", tag);
     let mut res = Vec::new();
-    for mut block in do_extract_comment_blocks(text, true) {
+    for (line, mut block) in do_extract_comment_blocks(text, true) {
         let first = block.remove(0);
         if first.starts_with(&tag) {
             let id = first[tag.len()..].trim().to_string();
-            let block = CommentBlock { id, contents: block };
+            let block = CommentBlock { id, line, contents: block };
             res.push(block);
         }
     }
@@ -81,31 +81,38 @@ fn extract_comment_blocks_with_empty_lines(tag: &str, text: &str) -> Vec<Comment
 
 struct CommentBlock {
     id: String,
+    line: usize,
     contents: Vec<String>,
 }
 
-fn do_extract_comment_blocks(text: &str, allow_blocks_with_empty_lines: bool) -> Vec<Vec<String>> {
+fn do_extract_comment_blocks(
+    text: &str,
+    allow_blocks_with_empty_lines: bool,
+) -> Vec<(usize, Vec<String>)> {
     let mut res = Vec::new();
 
     let prefix = "// ";
     let lines = text.lines().map(str::trim_start);
 
-    let mut block = vec![];
-    for line in lines {
+    let mut block = (0, vec![]);
+    for (line_num, line) in lines.enumerate() {
         if line == "//" && allow_blocks_with_empty_lines {
-            block.push(String::new());
+            block.1.push(String::new());
             continue;
         }
 
         let is_comment = line.starts_with(prefix);
         if is_comment {
-            block.push(line[prefix.len()..].to_string());
-        } else if !block.is_empty() {
-            res.push(mem::replace(&mut block, Vec::new()));
+            block.1.push(line[prefix.len()..].to_string());
+        } else {
+            if !block.1.is_empty() {
+                res.push(mem::take(&mut block));
+            }
+            block.0 = line_num + 2;
         }
     }
-    if !block.is_empty() {
-        res.push(mem::replace(&mut block, Vec::new()))
+    if !block.1.is_empty() {
+        res.push(block)
     }
     res
 }
@@ -113,11 +120,12 @@ fn do_extract_comment_blocks(text: &str, allow_blocks_with_empty_lines: bool) ->
 #[derive(Debug)]
 struct Location {
     file: PathBuf,
+    line: usize,
 }
 
 impl Location {
-    fn new(file: PathBuf) -> Self {
-        Self { file }
+    fn new(file: PathBuf, line: usize) -> Self {
+        Self { file, line }
     }
 }
 
@@ -128,8 +136,9 @@ impl fmt::Display for Location {
         let name = self.file.file_name().unwrap();
         write!(
             f,
-            "https://github.com/rust-analyzer/rust-analyzer/blob/master/{}[{}]",
+            "https://github.com/rust-analyzer/rust-analyzer/blob/master/{}#L{}[{}]",
             path,
+            self.line,
             name.to_str().unwrap()
         )
     }
diff --git a/xtask/src/codegen/gen_assists_docs.rs b/xtask/src/codegen/gen_assists_docs.rs
index 15a02d317..6c1be5350 100644
--- a/xtask/src/codegen/gen_assists_docs.rs
+++ b/xtask/src/codegen/gen_assists_docs.rs
@@ -64,7 +64,7 @@ impl Assist {
                 assert_eq!(lines.next().unwrap().as_str(), "->");
                 assert_eq!(lines.next().unwrap().as_str(), "```");
                 let after = take_until(lines.by_ref(), "```");
-                let location = Location::new(path.to_path_buf());
+                let location = Location::new(path.to_path_buf(), block.line);
                 acc.push(Assist { id, location, doc, before, after })
             }
 
@@ -90,6 +90,7 @@ impl fmt::Display for Assist {
         writeln!(
             f,
             "[discrete]\n=== `{}`
+**Source:** {}
 
 {}
 
@@ -101,6 +102,7 @@ impl fmt::Display for Assist {
 ```rust
 {}```",
             self.id,
+            self.location,
             self.doc,
             hide_hash_comments(&before),
             hide_hash_comments(&after)
diff --git a/xtask/src/codegen/gen_feature_docs.rs b/xtask/src/codegen/gen_feature_docs.rs
index 731e7ecf2..31bc3839d 100644
--- a/xtask/src/codegen/gen_feature_docs.rs
+++ b/xtask/src/codegen/gen_feature_docs.rs
@@ -40,7 +40,8 @@ impl Feature {
                 let id = block.id;
                 assert!(is_valid_feature_name(&id), "invalid feature name: {:?}", id);
                 let doc = block.contents.join("\n");
-                acc.push(Feature { id, location: Location::new(path.clone()), doc })
+                let location = Location::new(path.clone(), block.line);
+                acc.push(Feature { id, location, doc })
             }
 
             Ok(())