Repository: rust-analyzer/rust-analyzer
Pull request #7240 (2021-01-10 17:58:45)

Make default memory stats less verbose
bors r+
🤖


Patch:
diff --git a/crates/assists/src/handlers/remove_dbg.rs b/crates/assists/src/handlers/remove_dbg.rs
index 6114091f24..0320c2f129 100644
--- a/crates/assists/src/handlers/remove_dbg.rs
+++ b/crates/assists/src/handlers/remove_dbg.rs
@@ -1,6 +1,6 @@
 use syntax::{
     ast::{self, AstNode},
-    match_ast, SyntaxElement, TextRange, TextSize, T,
+    match_ast, SyntaxElement, SyntaxKind, TextRange, TextSize, T,
 };
 
 use crate::{AssistContext, AssistId, AssistKind, Assists};
@@ -136,14 +136,14 @@ fn needs_parentheses_around_macro_contents(macro_contents: Vec<SyntaxElement>) -
             symbol_kind => {
                 let symbol_not_in_bracket = unpaired_brackets_in_contents.is_empty();
                 if symbol_not_in_bracket
-                    && symbol_kind != T![:] // paths
-                    && (symbol_kind != T![.] // field/method access
+                    && symbol_kind != SyntaxKind::COLON // paths
+                    && (symbol_kind != SyntaxKind::DOT // field/method access
                         || macro_contents // range expressions consist of two SyntaxKind::Dot in macro invocations
                             .peek()
-                            .map(|element| element.kind() == T![.])
+                            .map(|element| element.kind() == SyntaxKind::DOT)
                             .unwrap_or(false))
-                    && symbol_kind != T![?] // try operator
-                    && (symbol_kind.is_punct() || symbol_kind == T![as])
+                    && symbol_kind != SyntaxKind::QUESTION // try operator
+                    && (symbol_kind.is_punct() || symbol_kind == SyntaxKind::AS_KW)
                 {
                     return true;
                 }
diff --git a/crates/completion/src/completions/attribute.rs b/crates/completion/src/completions/attribute.rs
index e5522980d7..a52ca107e6 100644
--- a/crates/completion/src/completions/attribute.rs
+++ b/crates/completion/src/completions/attribute.rs
@@ -5,7 +5,7 @@
 
 use itertools::Itertools;
 use rustc_hash::FxHashSet;
-use syntax::{ast, AstNode, T};
+use syntax::{ast, AstNode, SyntaxKind};
 
 use crate::{
     context::CompletionContext,
@@ -205,7 +205,8 @@ fn complete_lint(
 fn parse_comma_sep_input(derive_input: ast::TokenTree) -> Result<FxHashSet<String>, ()> {
     match (derive_input.left_delimiter_token(), derive_input.right_delimiter_token()) {
         (Some(left_paren), Some(right_paren))
-            if left_paren.kind() == T!['('] && right_paren.kind() == T![')'] =>
+            if left_paren.kind() == SyntaxKind::L_PAREN
+                && right_paren.kind() == SyntaxKind::R_PAREN =>
         {
             let mut input_derives = FxHashSet::default();
             let mut current_derive = String::new();
@@ -217,7 +218,7 @@ fn parse_comma_sep_input(derive_input: ast::TokenTree) -> Result<FxHashSet<Strin
                 .skip(1)
                 .take_while(|token| token != &right_paren)
             {
-                if T![,] == token.kind() {
+                if SyntaxKind::COMMA == token.kind() {
                     if !current_derive.is_empty() {
                         input_derives.insert(current_derive);
                         current_derive = String::new();
diff --git a/crates/completion/src/completions/trait_impl.rs b/crates/completion/src/completions/trait_impl.rs
index 135ae49dc1..aa9c845da6 100644
--- a/crates/completion/src/completions/trait_impl.rs
+++ b/crates/completion/src/completions/trait_impl.rs
@@ -93,11 +93,11 @@ fn completion_match(ctx: &CompletionContext) -> Option<(ImplCompletionKind, Synt
         // `impl .. { const $0 }`
         // ERROR      0
         //   CONST_KW <- *
-        T![const] => 0,
+        SyntaxKind::CONST_KW => 0,
         // `impl .. { fn/type $0 }`
         // FN/TYPE_ALIAS  0
         //   FN_KW        <- *
-        T![fn] | T![type] => 0,
+        SyntaxKind::FN_KW | SyntaxKind::TYPE_KW => 0,
         // `impl .. { fn/type/const foo$0 }`
         // FN/TYPE_ALIAS/CONST  1
         //  NAME                0
@@ -121,7 +121,7 @@ fn completion_match(ctx: &CompletionContext) -> Option<(ImplCompletionKind, Synt
     let impl_def = ast::Impl::cast(impl_item.parent()?.parent()?)?;
     let kind = match impl_item.kind() {
         // `impl ... { const $0 fn/type/const }`
-        _ if token.kind() == T![const] => ImplCompletionKind::Const,
+        _ if token.kind() == SyntaxKind::CONST_KW => ImplCompletionKind::Const,
         SyntaxKind::CONST | SyntaxKind::ERROR => ImplCompletionKind::Const,
         SyntaxKind::TYPE_ALIAS => ImplCompletionKind::TypeAlias,
         SyntaxKind::FN => ImplCompletionKind::Fn,
diff --git a/crates/completion/src/patterns.rs b/crates/completion/src/patterns.rs
index f3ce91dd1b..f148b9402a 100644
--- a/crates/completion/src/patterns.rs
+++ b/crates/completion/src/patterns.rs
@@ -5,7 +5,7 @@ use syntax::{
     ast::{self, LoopBodyOwner},
     match_ast, AstNode, Direction, NodeOrToken, SyntaxElement,
     SyntaxKind::*,
-    SyntaxNode, SyntaxToken, T,
+    SyntaxNode, SyntaxToken,
 };
 
 #[cfg(test)]
@@ -119,7 +119,7 @@ pub(crate) fn unsafe_is_prev(element: SyntaxElement) -> bool {
     element
         .into_token()
         .and_then(|it| previous_non_trivia_token(it))
-        .filter(|it| it.kind() == T![unsafe])
+        .filter(|it| it.kind() == UNSAFE_KW)
         .is_some()
 }
 #[test]
@@ -131,7 +131,7 @@ pub(crate) fn if_is_prev(element: SyntaxElement) -> bool {
     element
         .into_token()
         .and_then(|it| previous_non_trivia_token(it))
-        .filter(|it| it.kind() == T![if])
+        .filter(|it| it.kind() == IF_KW)
         .is_some()
 }
 
@@ -139,7 +139,7 @@ pub(crate) fn fn_is_prev(element: SyntaxElement) -> bool {
     element
         .into_token()
         .and_then(|it| previous_non_trivia_token(it))
-        .filter(|it| it.kind() == T![fn])
+        .filter(|it| it.kind() == FN_KW)
         .is_some()
 }
 #[test]
@@ -154,7 +154,7 @@ pub(crate) fn for_is_prev2(element: SyntaxElement) -> bool {
         .into_token()
         .and_then(|it| previous_non_trivia_token(it))
         .and_then(|it| previous_non_trivia_token(it))
-        .filter(|it| it.kind() == T![for])
+        .filter(|it| it.kind() == FOR_KW)
         .is_some()
 }
 #[test]
diff --git a/crates/ide/src/references.rs b/crates/ide/src/references.rs
index d44d96dd40..0d5cd5f9a9 100644
--- a/crates/ide/src/references.rs
+++ b/crates/ide/src/references.rs
@@ -21,7 +21,7 @@ use ide_db::{
 use syntax::{
     algo::find_node_at_offset,
     ast::{self, NameOwner},
-    match_ast, AstNode, SyntaxNode, TextRange, TokenAtOffset, T,
+    match_ast, AstNode, SyntaxKind, SyntaxNode, TextRange, TokenAtOffset,
 };
 
 use crate::{display::TryToNav, FilePosition, FileRange, NavigationTarget, RangeInfo, SymbolKind};
@@ -203,7 +203,7 @@ fn get_struct_def_name_for_struct_literal_search(
     position: FilePosition,
 ) -> Option<ast::Name> {
     if let TokenAtOffset::Between(ref left, ref right) = syntax.token_at_offset(position.offset) {
-        if right.kind() != T!['{'] && right.kind() != T!['('] {
+        if right.kind() != SyntaxKind::L_CURLY && right.kind() != SyntaxKind::L_PAREN {
             return None;
         }
         if let Some(name) =
@@ -230,7 +230,7 @@ fn get_enum_def_name_for_struct_literal_search(
     position: FilePosition,
 ) -> Option<ast::Name> {
     if let TokenAtOffset::Between(ref left, ref right) = syntax.token_at_offset(position.offset) {
-        if right.kind() != T!['{'] && right.kind() != T!['('] {
+        if right.kind() != SyntaxKind::L_CURLY && right.kind() != SyntaxKind::L_PAREN {
             return None;
         }
         if let Some(name) =
@@ -255,7 +255,8 @@ fn try_find_self_references(
     syntax: &SyntaxNode,
     position: FilePosition,
 ) -> Option<RangeInfo<ReferenceSearchResult>> {
-    let self_token = syntax.token_at_offset(position.offset).find(|t| t.kind() == T![self])?;
+    let self_token =
+        syntax.token_at_offset(position.offset).find(|t| t.kind() == SyntaxKind::SELF_KW)?;
     let parent = self_token.parent();
     match_ast! {
         match parent {
diff --git a/crates/ide/src/syntax_highlighting/macro_rules.rs b/crates/ide/src/syntax_highlighting/macro_rules.rs
index 44620e912d..21d8a98350 100644
--- a/crates/ide/src/syntax_highlighting/macro_rules.rs
+++ b/crates/ide/src/syntax_highlighting/macro_rules.rs
@@ -119,7 +119,7 @@ fn is_metavariable(element: SyntaxElement) -> Option<TextRange> {
     let tok = element.as_token()?;
     match tok.kind() {
         kind if kind == SyntaxKind::IDENT || kind.is_keyword() => {
-            if let Some(_dollar) = tok.prev_token().filter(|t| t.kind() == T![$]) {
+            if let Some(_dollar) = tok.prev_token().filter(|t| t.kind() == SyntaxKind::DOLLAR) {
                 return Some(tok.text_range());
             }
         }
diff --git a/crates/ide/src/syntax_highlighting/tags.rs b/crates/ide/src/syntax_highlighting/tags.rs
index 8dd05ac524..a4396e7903 100644
--- a/crates/ide/src/syntax_highlighting/tags.rs
+++ b/crates/ide/src/syntax_highlighting/tags.rs
@@ -120,7 +120,7 @@ impl HlTag {
             HlTag::Punctuation(punct) => match punct {
                 HlPunct::Bracket => "bracket",
                 HlPunct::Brace => "brace",
-                HlPunct::Parenthesis => "parenthesis",
+                HlPunct::Parenthesis => "parentheses",
                 HlPunct::Angle => "angle",
                 HlPunct::Comma => "comma",
                 HlPunct::Dot => "dot",
diff --git a/crates/parser/src/grammar/expressions/atom.rs b/crates/parser/src/grammar/expressions/atom.rs
index d61950b96a..c7a3556a77 100644
--- a/crates/parser/src/grammar/expressions/atom.rs
+++ b/crates/parser/src/grammar/expressions/atom.rs
@@ -15,16 +15,8 @@ use super::*;
 //     let _ = b"e";
 //     let _ = br"f";
 // }
-pub(crate) const LITERAL_FIRST: TokenSet = TokenSet::new(&[
-    T![true],
-    T![false],
-    INT_NUMBER,
-    FLOAT_NUMBER,
-    BYTE,
-    CHAR,
-    STRING,
-    BYTE_STRING,
-]);
+pub(crate) const LITERAL_FIRST: TokenSet =
+    TokenSet::new(&[TRUE_KW, FALSE_KW, INT_NUMBER, FLOAT_NUMBER, BYTE, CHAR, STRING, BYTE_STRING]);
 
 pub(crate) fn literal(p: &mut Parser) -> Option<CompletedMarker> {
     if !p.at_ts(LITERAL_FIRST) {
diff --git a/crates/parser/src/grammar/items.rs b/crates/parser/src/grammar/items.rs
index 2070ce1632..cf4168d321 100644
--- a/crates/parser/src/grammar/items.rs
+++ b/crates/parser/src/grammar/items.rs
@@ -27,19 +27,19 @@ pub(super) fn mod_contents(p: &mut Parser, stop_on_r_curly: bool) {
 }
 
 pub(super) const ITEM_RECOVERY_SET: TokenSet = TokenSet::new(&[
-    T![fn],
-    T![struct],
-    T![enum],
-    T![impl],
-    T![trait],
-    T![const],
-    T![static],
-    T![let],
-    T![mod],
-    T![pub],
-    T![crate],
-    T![use],
-    T![macro],
+    FN_KW,
+    STRUCT_KW,
+    ENUM_KW,
+    IMPL_KW,
+    TRAIT_KW,
+    CONST_KW,
+    STATIC_KW,
+    LET_KW,
+    MOD_KW,
+    PUB_KW,
+    CRATE_KW,
+    USE_KW,
+    MACRO_KW,
     T![;],
 ]);
 
diff --git a/crates/parser/src/grammar/items/traits.rs b/crates/parser/src/grammar/items/traits.rs
index d076974ed2..ab9a12b4de 100644
--- a/crates/parser/src/grammar/items/traits.rs
+++ b/crates/parser/src/grammar/items/traits.rs
@@ -110,7 +110,7 @@ fn choose_type_params_over_qpath(p: &Parser) -> bool {
     if !p.at(T![<]) {
         return false;
     }
-    if p.nth(1) == T![#] || p.nth(1) == T![>] || p.nth(1) == T![const] {
+    if p.nth(1) == T![#] || p.nth(1) == T![>] || p.nth(1) == CONST_KW {
         return true;
     }
     (p.nth(1) == LIFETIME_IDENT || p.nth(1) == IDENT)
diff --git a/crates/parser/src/grammar/patterns.rs b/crates/parser/src/grammar/patterns.rs
index da71498a8f..b53d5749f4 100644
--- a/crates/parser/src/grammar/patterns.rs
+++ b/crates/parser/src/grammar/patterns.rs
@@ -83,7 +83,7 @@ fn pattern_single_r(p: &mut Parser, recovery_set: TokenSet) {
 }
 
 const PAT_RECOVERY_SET: TokenSet =
-    TokenSet::new(&[T![let], T![if], T![while], T![loop], T![match], T![')'], T![,]]);
+    TokenSet::new(&[LET_KW, IF_KW, WHILE_KW, LOOP_KW, MATCH_KW, R_PAREN, COMMA]);
 
 fn atom_pat(p: &mut Parser, recovery_set: TokenSet) -> Option<CompletedMarker> {
     let m = match p.nth(0) {
diff --git a/crates/parser/src/grammar/type_args.rs b/crates/parser/src/grammar/type_args.rs
index 42cd426bd7..debb23fea1 100644
--- a/crates/parser/src/grammar/type_args.rs
+++ b/crates/parser/src/grammar/type_args.rs
@@ -55,7 +55,7 @@ fn generic_arg(p: &mut Parser) {
             expressions::literal(p);
             m.complete(p, CONST_ARG);
         }
-        T![true] | T![false] => {
+        TRUE_KW | FALSE_KW => {
             expressions::literal(p);
             m.complete(p, CONST_ARG);
         }
diff --git a/crates/parser/src/grammar/type_params.rs b/crates/parser/src/grammar/type_params.rs
index 3de5248da1..4aeccd193c 100644
--- a/crates/parser/src/grammar/type_params.rs
+++ b/crates/parser/src/grammar/type_params.rs
@@ -25,7 +25,7 @@ fn generic_param_list(p: &mut Parser) {
         match p.current() {
             LIFETIME_IDENT => lifetime_param(p, m),
             IDENT => type_param(p, m),
-            T![const] => const_param(p, m),
+            CONST_KW => const_param(p, m),
             _ => {
                 m.abandon(p);
                 p.err_and_bump("expected type parameter")
@@ -66,7 +66,7 @@ fn type_param(p: &mut Parser, m: Marker) {
 // test const_param
 // struct S<const N: u32>;
 fn const_param(p: &mut Parser, m: Marker) {
-    assert!(p.at(T![const]));
+    assert!(p.at(CONST_KW));
     p.bump(T![const]);
     name(p);
     types::ascription(p);
diff --git a/crates/rust-analyzer/src/cli/analysis_stats.rs b/crates/rust-analyzer/src/cli/analysis_stats.rs
index 9445aec074..30811bbbfa 100644
--- a/crates/rust-analyzer/src/cli/analysis_stats.rs
+++ b/crates/rust-analyzer/src/cli/analysis_stats.rs
@@ -302,7 +302,7 @@ impl AnalysisStatsCmd {
             report_metric("total memory", memory.allocated.megabytes() as u64, "MB");
         }
 
-        if self.memory_usage {
+        if self.memory_usage && verbosity.is_verbose() {
             print_memory_usage(host, vfs);
         }
 
diff --git a/crates/syntax/src/ast/node_ext.rs b/crates/syntax/src/ast/node_ext.rs
index 27381ba807..2aa472fb49 100644
--- a/crates/syntax/src/ast/node_ext.rs
+++ b/crates/syntax/src/ast/node_ext.rs
@@ -133,7 +133,7 @@ impl ast::Attr {
             first_token.and_then(|token| token.next_token()).as_ref().map(SyntaxToken::kind);
 
         match (first_token_kind, second_token_kind) {
-            (Some(T![#]), Some(T![!])) => AttrKind::Inner,
+            (Some(SyntaxKind::POUND), Some(T![!])) => AttrKind::Inner,
             _ => AttrKind::Outer,
         }
     }
diff --git a/crates/syntax/src/validation.rs b/crates/syntax/src/validation.rs
index 7f90883821..2ddaeb1766 100644
--- a/crates/syntax/src/validation.rs
+++ b/crates/syntax/src/validation.rs
@@ -344,9 +344,9 @@ fn validate_trait_object_ty(ty: ast::DynTraitType) -> Option<SyntaxError> {
 
     if tbl.bounds().count() > 1 {
         let dyn_token = ty.dyn_token()?;
-        let potential_parenthesis =
+        let potential_parentheses =
             algo::skip_trivia_token(dyn_token.prev_token()?, Direction::Prev)?;
-        let kind = potential_parenthesis.kind();
+        let kind = potential_parentheses.kind();
         if !matches!(kind, T!['('] | T![<] | T![=]) {
             return Some(SyntaxError::new("ambiguous `+` in a type", ty.syntax().text_range()));
         }
diff --git a/docs/dev/style.md b/docs/dev/style.md
index 7481f80082..67cbc67448 100644
--- a/docs/dev/style.md
+++ b/docs/dev/style.md
@@ -643,27 +643,6 @@ assert!(x >= lo && x <= hi>);
 **Rationale:** Less-then comparisons are more intuitive, they correspond spatially to [real line](https://en.wikipedia.org/wiki/Real_line).
 
 
-## Token names
-
-Use `T![foo]` instead of `SyntaxKind::FOO_KW`.
-
-```rust
-// GOOD
-match p.current() {
-    T![true] | T![false] => true,
-    _ => false,
-}
-
-// BAD
-
-match p.current() {
-    SyntaxKind::TRUE_KW | SyntaxKind::FALSE_KW => true,
-    _ => false,
-}
-```
-
-**Rationale:** The macro uses the familiar Rust syntax, avoiding ambiguities like "is this a brace or bracket?".
-
 ## Documentation
 
 For `.md` and `.adoc` files, prefer a sentence-per-line format, don't wrap lines.


Test patch:
diff --git a/crates/ide/src/syntax_highlighting/test_data/highlight_assoc_functions.html b/crates/ide/src/syntax_highlighting/test_data/highlight_assoc_functions.html
index e36e6fc3fa..d4e7b45bef 100644
--- a/crates/ide/src/syntax_highlighting/test_data/highlight_assoc_functions.html
+++ b/crates/ide/src/syntax_highlighting/test_data/highlight_assoc_functions.html
@@ -36,22 +36,22 @@ pre                 { color: #DCDCCC; background: #3F3F3F; font-size: 22px; padd
 
 .unresolved_reference { color: #FC5555; text-decoration: wavy underline; }
 </style>
-<pre><code><span class="keyword">fn</span> <span class="function declaration">not_static</span><span class="parenthesis">(</span><span class="parenthesis">)</span> <span class="brace">{</span><span class="brace">}</span>
+<pre><code><span class="keyword">fn</span> <span class="function declaration">not_static</span><span class="parentheses">(</span><span class="parentheses">)</span> <span class="brace">{</span><span class="brace">}</span>
 
 <span class="keyword">struct</span> <span class="struct declaration">foo</span> <span class="brace">{</span><span class="brace">}</span>
 
 <span class="keyword">impl</span> <span class="struct">foo</span> <span class="brace">{</span>
-    <span class="keyword">pub</span> <span class="keyword">fn</span> <span class="function declaration static associated">is_static</span><span class="parenthesis">(</span><span class="parenthesis">)</span> <span class="brace">{</span><span class="brace">}</span>
-    <span class="keyword">pub</span> <span class="keyword">fn</span> <span class="function declaration associated">is_not_static</span><span class="parenthesis">(</span><span class="operator">&</span><span class="self_keyword">self</span><span class="parenthesis">)</span> <span class="brace">{</span><span class="brace">}</span>
+    <span class="keyword">pub</span> <span class="keyword">fn</span> <span class="function declaration static associated">is_static</span><span class="parentheses">(</span><span class="parentheses">)</span> <span class="brace">{</span><span class="brace">}</span>
+    <span class="keyword">pub</span> <span class="keyword">fn</span> <span class="function declaration associated">is_not_static</span><span class="parentheses">(</span><span class="operator">&</span><span class="self_keyword">self</span><span class="parentheses">)</span> <span class="brace">{</span><span class="brace">}</span>
 <span class="brace">}</span>
 
 <span class="keyword">trait</span> <span class="trait declaration">t</span> <span class="brace">{</span>
-    <span class="keyword">fn</span> <span class="function declaration static associated">t_is_static</span><span class="parenthesis">(</span><span class="parenthesis">)</span> <span class="brace">{</span><span class="brace">}</span>
-    <span class="keyword">fn</span> <span class="function declaration associated">t_is_not_static</span><span class="parenthesis">(</span><span class="operator">&</span><span class="self_keyword">self</span><span class="parenthesis">)</span> <span class="brace">{</span><span class="brace">}</span>
+    <span class="keyword">fn</span> <span class="function declaration static associated">t_is_static</span><span class="parentheses">(</span><span class="parentheses">)</span> <span class="brace">{</span><span class="brace">}</span>
+    <span class="keyword">fn</span> <span class="function declaration associated">t_is_not_static</span><span class="parentheses">(</span><span class="operator">&</span><span class="self_keyword">self</span><span class="parentheses">)</span> <span class="brace">{</span><span class="brace">}</span>
 <span class="brace">}</span>
 
 <span class="keyword">impl</span> <span class="trait">t</span> <span class="keyword">for</span> <span class="struct">foo</span> <span class="brace">{</span>
-    <span class="keyword">pub</span> <span class="keyword">fn</span> <span class="function declaration static associated">is_static</span><span class="parenthesis">(</span><span class="parenthesis">)</span> <span class="brace">{</span><span class="brace">}</span>
-    <span class="keyword">pub</span> <span class="keyword">fn</span> <span class="function declaration associated">is_not_static</span><span class="parenthesis">(</span><span class="operator">&</span><span class="self_keyword">self</span><span class="parenthesis">)</span> <span class="brace">{</span><span class="brace">}</span>
+    <span class="keyword">pub</span> <span class="keyword">fn</span> <span class="function declaration static associated">is_static</span><span class="parentheses">(</span><span class="parentheses">)</span> <span class="brace">{</span><span class="brace">}</span>
+    <span class="keyword">pub</span> <span class="keyword">fn</span> <span class="function declaration associated">is_not_static</span><span class="parentheses">(</span><span class="operator">&</span><span class="self_keyword">self</span><span class="parentheses">)</span> <span class="brace">{</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/test_data/highlight_doctest.html b/crates/ide/src/syntax_highlighting/test_data/highlight_doctest.html
index 6dadda1c1d..df0cf3704a 100644
--- a/crates/ide/src/syntax_highlighting/test_data/highlight_doctest.html
+++ b/crates/ide/src/syntax_highlighting/test_data/highlight_doctest.html
@@ -56,10 +56,10 @@ pre                 { color: #DCDCCC; background: #3F3F3F; font-size: 22px; padd
     <span class="comment documentation">/// # Examples</span>
     <span class="comment documentation">///</span>
     <span class="comment documentation">/// ```</span>
-    <span class="comment documentation">/// #</span><span class="none injected"> </span><span class="attribute attribute injected">#</span><span class="attribute attribute injected">!</span><span class="attribute attribute injected">[</span><span class="function attribute injected">allow</span><span class="parenthesis attribute injected">(</span><span class="attribute attribute injected">unused_mut</span><span class="parenthesis attribute injected">)</span><span class="attribute attribute injected">]</span>
-    <span class="comment documentation">/// </span><span class="keyword injected">let</span><span class="none injected"> </span><span class="keyword injected">mut</span><span class="none injected"> </span><span class="variable declaration injected mutable">foo</span><span class="colon injected">:</span><span class="none injected"> </span><span class="struct injected">Foo</span><span class="none injected"> </span><span class="operator injected">=</span><span class="none injected"> </span><span class="struct injected">Foo</span><span class="operator injected">::</span><span class="function injected">new</span><span class="parenthesis injected">(</span><span class="parenthesis injected">)</span><span class="semicolon injected">;</span>
+    <span class="comment documentation">/// #</span><span class="none injected"> </span><span class="attribute attribute injected">#</span><span class="attribute attribute injected">!</span><span class="attribute attribute injected">[</span><span class="function attribute injected">allow</span><span class="parentheses attribute injected">(</span><span class="attribute attribute injected">unused_mut</span><span class="parentheses attribute injected">)</span><span class="attribute attribute injected">]</span>
+    <span class="comment documentation">/// </span><span class="keyword injected">let</span><span class="none injected"> </span><span class="keyword injected">mut</span><span class="none injected"> </span><span class="variable declaration injected mutable">foo</span><span class="colon injected">:</span><span class="none injected"> </span><span class="struct injected">Foo</span><span class="none injected"> </span><span class="operator injected">=</span><span class="none injected"> </span><span class="struct injected">Foo</span><span class="operator injected">::</span><span class="function injected">new</span><span class="parentheses injected">(</span><span class="parentheses injected">)</span><span class="semicolon injected">;</span>
     <span class="comment documentation">/// ```</span>
-    <span class="keyword">pub</span> <span class="keyword">const</span> <span class="keyword">fn</span> <span class="function declaration static associated">new</span><span class="parenthesis">(</span><span class="parenthesis">)</span> <span class="operator">-&gt;</span> <span class="struct">Foo</span> <span class="brace">{</span>
+    <span class="keyword">pub</span> <span class="keyword">const</span> <span class="keyword">fn</span> <span class="function declaration static associated">new</span><span class="parentheses">(</span><span class="parentheses">)</span> <span class="operator">-&gt;</span> <span class="struct">Foo</span> <span class="brace">{</span>
         <span class="struct">Foo</span> <span class="brace">{</span> <span class="field">bar</span><span class="colon">:</span> <span class="bool_literal">true</span> <span class="brace">}</span>
     <span class="brace">}</span>
 
@@ -70,10 +70,10 @@ pre                 { color: #DCDCCC; background: #3F3F3F; font-size: 22px; padd
     <span class="comment documentation">/// ```</span>
     <span class="comment documentation">/// </span><span class="keyword injected">use</span><span class="none injected"> </span><span class="module injected">x</span><span class="operator injected">::</span><span class="module injected">y</span><span class="semicolon injected">;</span>
     <span class="comment documentation">///</span>
-    <span class="comment documentation">/// </span><span class="keyword injected">let</span><span class="none injected"> </span><span class="variable declaration injected">foo</span><span class="none injected"> </span><span class="operator injected">=</span><span class="none injected"> </span><span class="struct injected">Foo</span><span class="operator injected">::</span><span class="function injected">new</span><span class="parenthesis injected">(</span><span class="parenthesis injected">)</span><span class="semicolon injected">;</span>
+    <span class="comment documentation">/// </span><span class="keyword injected">let</span><span class="none injected"> </span><span class="variable declaration injected">foo</span><span class="none injected"> </span><span class="operator injected">=</span><span class="none injected"> </span><span class="struct injected">Foo</span><span class="operator injected">::</span><span class="function injected">new</span><span class="parentheses injected">(</span><span class="parentheses injected">)</span><span class="semicolon injected">;</span>
     <span class="comment documentation">///</span>
     <span class="comment documentation">/// </span><span class="comment injected">// calls bar on foo</span>
-    <span class="comment documentation">/// </span><span class="macro injected">assert!</span><span class="parenthesis injected">(</span><span class="none injected">foo</span><span class="operator injected">.</span><span class="none injected">bar</span><span class="parenthesis injected">(</span><span class="parenthesis injected">)</span><span class="parenthesis injected">)</span><span class="semicolon injected">;</span>
+    <span class="comment documentation">/// </span><span class="macro injected">assert!</span><span class="parentheses injected">(</span><span class="none injected">foo</span><span class="operator injected">.</span><span class="none injected">bar</span><span class="parentheses injected">(</span><span class="parentheses injected">)</span><span class="parentheses injected">)</span><span class="semicolon injected">;</span>
     <span class="comment documentation">///</span>
     <span class="comment documentation">/// </span><span class="keyword injected">let</span><span class="none injected"> </span><span class="variable declaration injected">bar</span><span class="none injected"> </span><span class="operator injected">=</span><span class="none injected"> </span><span class="variable injected">foo</span><span class="operator injected">.</span><span class="field injected">bar</span><span class="none injected"> </span><span class="operator injected">||</span><span class="none injected"> </span><span class="struct injected">Foo</span><span class="operator injected">::</span><span class="constant injected">bar</span><span class="semicolon injected">;</span>
     <span class="comment documentation">///</span>
@@ -87,22 +87,22 @@ pre                 { color: #DCDCCC; background: #3F3F3F; font-size: 22px; padd
     <span class="comment documentation">/// ```</span>
     <span class="comment documentation">///</span>
     <span class="comment documentation">/// ```rust,no_run</span>
-    <span class="comment documentation">/// </span><span class="keyword injected">let</span><span class="none injected"> </span><span class="variable declaration injected">foobar</span><span class="none injected"> </span><span class="operator injected">=</span><span class="none injected"> </span><span class="struct injected">Foo</span><span class="operator injected">::</span><span class="function injected">new</span><span class="parenthesis injected">(</span><span class="parenthesis injected">)</span><span class="operator injected">.</span><span class="function injected">bar</span><span class="parenthesis injected">(</span><span class="parenthesis injected">)</span><span class="semicolon injected">;</span>
+    <span class="comment documentation">/// </span><span class="keyword injected">let</span><span class="none injected"> </span><span class="variable declaration injected">foobar</span><span class="none injected"> </span><span class="operator injected">=</span><span class="none injected"> </span><span class="struct injected">Foo</span><span class="operator injected">::</span><span class="function injected">new</span><span class="parentheses injected">(</span><span class="parentheses injected">)</span><span class="operator injected">.</span><span class="function injected">bar</span><span class="parentheses injected">(</span><span class="parentheses injected">)</span><span class="semicolon injected">;</span>
     <span class="comment documentation">/// ```</span>
     <span class="comment documentation">///</span>
     <span class="comment documentation">/// ```sh</span>
     <span class="comment documentation">/// echo 1</span>
     <span class="comment documentation">/// ```</span>
-    <span class="keyword">pub</span> <span class="keyword">fn</span> <span class="function declaration associated">foo</span><span class="parenthesis">(</span><span class="operator">&</span><span class="self_keyword">self</span><span class="parenthesis">)</span> <span class="operator">-&gt;</span> <span class="builtin_type">bool</span> <span class="brace">{</span>
+    <span class="keyword">pub</span> <span class="keyword">fn</span> <span class="function declaration associated">foo</span><span class="parentheses">(</span><span class="operator">&</span><span class="self_keyword">self</span><span class="parentheses">)</span> <span class="operator">-&gt;</span> <span class="builtin_type">bool</span> <span class="brace">{</span>
         <span class="bool_literal">true</span>
     <span class="brace">}</span>
 <span class="brace">}</span>
 
 <span class="comment documentation">/// ```</span>
-<span class="comment documentation">/// </span><span class="macro injected">noop!</span><span class="parenthesis injected">(</span><span class="numeric_literal injected">1</span><span class="parenthesis injected">)</span><span class="semicolon injected">;</span>
+<span class="comment documentation">/// </span><span class="macro injected">noop!</span><span class="parentheses injected">(</span><span class="numeric_literal injected">1</span><span class="parentheses injected">)</span><span class="semicolon injected">;</span>
 <span class="comment documentation">/// ```</span>
 <span class="keyword">macro_rules</span><span class="punctuation">!</span> <span class="macro declaration">noop</span> <span class="brace">{</span>
-    <span class="parenthesis">(</span><span class="punctuation">$</span>expr<span class="colon">:</span>expr<span class="parenthesis">)</span> <span class="operator">=</span><span class="angle">&gt;</span> <span class="brace">{</span>
+    <span class="parentheses">(</span><span class="punctuation">$</span>expr<span class="colon">:</span>expr<span class="parentheses">)</span> <span class="operator">=</span><span class="angle">&gt;</span> <span class="brace">{</span>
         <span class="punctuation">$</span>expr
     <span class="brace">}</span>
 <span class="brace">}</span></code></pre>
\ No newline at end of file
diff --git a/crates/ide/src/syntax_highlighting/test_data/highlight_injection.html b/crates/ide/src/syntax_highlighting/test_data/highlight_injection.html
index 753b535b55..169c268f59 100644
--- a/crates/ide/src/syntax_highlighting/test_data/highlight_injection.html
+++ b/crates/ide/src/syntax_highlighting/test_data/highlight_injection.html
@@ -36,14 +36,14 @@ pre                 { color: #DCDCCC; background: #3F3F3F; font-size: 22px; padd
 
 .unresolved_reference { color: #FC5555; text-decoration: wavy underline; }
 </style>
-<pre><code><span class="keyword">fn</span> <span class="function declaration">fixture</span><span class="parenthesis">(</span><span class="value_param declaration">ra_fixture</span><span class="colon">:</span> <span class="operator">&</span><span class="builtin_type">str</span><span class="parenthesis">)</span> <span class="brace">{</span><span class="brace">}</span>
+<pre><code><span class="keyword">fn</span> <span class="function declaration">fixture</span><span class="parentheses">(</span><span class="value_param declaration">ra_fixture</span><span class="colon">:</span> <span class="operator">&</span><span class="builtin_type">str</span><span class="parentheses">)</span> <span class="brace">{</span><span class="brace">}</span>
 
-<span class="keyword">fn</span> <span class="function declaration">main</span><span class="parenthesis">(</span><span class="parenthesis">)</span> <span class="brace">{</span>
-    <span class="function">fixture</span><span class="parenthesis">(</span><span class="string_literal">r#"</span>
+<span class="keyword">fn</span> <span class="function declaration">main</span><span class="parentheses">(</span><span class="parentheses">)</span> <span class="brace">{</span>
+    <span class="function">fixture</span><span class="parentheses">(</span><span class="string_literal">r#"</span>
         <span class="keyword">trait</span> <span class="trait declaration">Foo</span> <span class="brace">{</span>
-            <span class="keyword">fn</span> <span class="function declaration static associated">foo</span><span class="parenthesis">(</span><span class="parenthesis">)</span> <span class="brace">{</span>
-                <span class="macro">println!</span><span class="parenthesis">(</span><span class="string_literal">"2 + 2 = {}"</span><span class="comma">,</span> <span class="numeric_literal">4</span><span class="parenthesis">)</span><span class="semicolon">;</span>
+            <span class="keyword">fn</span> <span class="function declaration static associated">foo</span><span class="parentheses">(</span><span class="parentheses">)</span> <span class="brace">{</span>
+                <span class="macro">println!</span><span class="parentheses">(</span><span class="string_literal">"2 + 2 = {}"</span><span class="comma">,</span> <span class="numeric_literal">4</span><span class="parentheses">)</span><span class="semicolon">;</span>
             <span class="brace">}</span>
         <span class="brace">}</span><span class="string_literal">"#</span>
-    <span class="parenthesis">)</span><span class="semicolon">;</span>
+    <span class="parentheses">)</span><span class="semicolon">;</span>
 <span class="brace">}</span></code></pre>
\ No newline at end of file
diff --git a/crates/ide/src/syntax_highlighting/test_data/highlight_strings.html b/crates/ide/src/syntax_highlighting/test_data/highlight_strings.html
index 66d80c4b66..d8626c8bc2 100644
--- a/crates/ide/src/syntax_highlighting/test_data/highlight_strings.html
+++ b/crates/ide/src/syntax_highlighting/test_data/highlight_strings.html
@@ -37,63 +37,63 @@ pre                 { color: #DCDCCC; background: #3F3F3F; font-size: 22px; padd
 .unresolved_reference { color: #FC5555; text-decoration: wavy underline; }
 </style>
 <pre><code><span class="keyword">macro_rules</span><span class="punctuation">!</span> <span class="macro declaration">println</span> <span class="brace">{</span>
-    <span class="parenthesis">(</span><span class="punctuation">$</span><span class="parenthesis">(</span><span class="punctuation">$</span>arg<span class="colon">:</span>tt<span class="parenthesis">)</span><span class="punctuation">*</span><span class="parenthesis">)</span> <span class="operator">=</span><span class="angle">&gt;</span> <span class="parenthesis">(</span><span class="brace">{</span>
-        <span class="punctuation">$</span>crate<span class="colon">:</span><span class="colon">:</span>io<span class="colon">:</span><span class="colon">:</span>_print<span class="parenthesis">(</span><span class="punctuation">$</span>crate<span class="colon">:</span><span class="colon">:</span>format_args_nl<span class="punctuation">!</span><span class="parenthesis">(</span><span class="punctuation">$</span><span class="parenthesis">(</span><span class="punctuation">$</span>arg<span class="parenthesis">)</span><span class="punctuation">*</span><span class="parenthesis">)</span><span class="parenthesis">)</span><span class="semicolon">;</span>
-    <span class="brace">}</span><span class="parenthesis">)</span>
+    <span class="parentheses">(</span><span class="punctuation">$</span><span class="parentheses">(</span><span class="punctuation">$</span>arg<span class="colon">:</span>tt<span class="parentheses">)</span><span class="punctuation">*</span><span class="parentheses">)</span> <span class="operator">=</span><span class="angle">&gt;</span> <span class="parentheses">(</span><span class="brace">{</span>
+        <span class="punctuation">$</span>crate<span class="colon">:</span><span class="colon">:</span>io<span class="colon">:</span><span class="colon">:</span>_print<span class="parentheses">(</span><span class="punctuation">$</span>crate<span class="colon">:</span><span class="colon">:</span>format_args_nl<span class="punctuation">!</span><span class="parentheses">(</span><span class="punctuation">$</span><span class="parentheses">(</span><span class="punctuation">$</span>arg<span class="parentheses">)</span><span class="punctuation">*</span><span class="parentheses">)</span><span class="parentheses">)</span><span class="semicolon">;</span>
+    <span class="brace">}</span><span class="parentheses">)</span>
 <span class="brace">}</span>
 <span class="attribute attribute">#</span><span class="attribute attribute">[</span><span class="function attribute">rustc_builtin_macro</span><span class="attribute attribute">]</span>
 <span class="keyword">macro_rules</span><span class="punctuation">!</span> <span class="macro declaration">format_args_nl</span> <span class="brace">{</span>
-    <span class="parenthesis">(</span><span class="punctuation">$</span>fmt<span class="colon">:</span>expr<span class="parenthesis">)</span> <span class="operator">=</span><span class="angle">&gt;</span> <span class="brace">{</span><span class="brace">{</span> <span class="comment">/* compiler built-in */</span> <span class="brace">}</span><span class="brace">}</span><span class="semicolon">;</span>
-    <span class="parenthesis">(</span><span class="punctuation">$</span>fmt<span class="colon">:</span>expr<span class="comma">,</span> <span class="punctuation">$</span><span class="parenthesis">(</span><span class="punctuation">$</span>args<span class="colon">:</span>tt<span class="parenthesis">)</span><span class="punctuation">*</span><span class="parenthesis">)</span> <span class="operator">=</span><span class="angle">&gt;</span> <span class="brace">{</span><span class="brace">{</span> <span class="comment">/* compiler built-in */</span> <span class="brace">}</span><span class="brace">}</span><span class="semicolon">;</span>
+    <span class="parentheses">(</span><span class="punctuation">$</span>fmt<span class="colon">:</span>expr<span class="parentheses">)</span> <span class="operator">=</span><span class="angle">&gt;</span> <span class="brace">{</span><span class="brace">{</span> <span class="comment">/* compiler built-in */</span> <span class="brace">}</span><span class="brace">}</span><span class="semicolon">;</span>
+    <span class="parentheses">(</span><span class="punctuation">$</span>fmt<span class="colon">:</span>expr<span class="comma">,</span> <span class="punctuation">$</span><span class="parentheses">(</span><span class="punctuation">$</span>args<span class="colon">:</span>tt<span class="parentheses">)</span><span class="punctuation">*</span><span class="parentheses">)</span> <span class="operator">=</span><span class="angle">&gt;</span> <span class="brace">{</span><span class="brace">{</span> <span class="comment">/* compiler built-in */</span> <span class="brace">}</span><span class="brace">}</span><span class="semicolon">;</span>
 <span class="brace">}</span>
 
-<span class="keyword">fn</span> <span class="function declaration">main</span><span class="parenthesis">(</span><span class="parenthesis">)</span> <span class="brace">{</span>
+<span class="keyword">fn</span> <span class="function declaration">main</span><span class="parentheses">(</span><span class="parentheses">)</span> <span class="brace">{</span>
     <span class="comment">// from https://doc.rust-lang.org/std/fmt/index.html</span>
-    <span class="macro">println!</span><span class="parenthesis">(</span><span class="string_literal">"Hello"</span><span class="parenthesis">)</span><span class="semicolon">;</span>                 <span class="comment">// =&gt; "Hello"</span>
-    <span class="macro">println!</span><span class="parenthesis">(</span><span class="string_literal">"Hello, </span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal">!"</span><span class="comma">,</span> <span class="string_literal">"world"</span><span class="parenthesis">)</span><span class="semicolon">;</span>   <span class="comment">// =&gt; "Hello, world!"</span>
-    <span class="macro">println!</span><span class="parenthesis">(</span><span class="string_literal">"The number is </span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal">"</span><span class="comma">,</span> <span class="numeric_literal">1</span><span class="parenthesis">)</span><span class="semicolon">;</span>   <span class="comment">// =&gt; "The number is 1"</span>
-    <span class="macro">println!</span><span class="parenthesis">(</span><span class="string_literal">"</span><span class="format_specifier">{</span><span class="format_specifier">:</span><span class="format_specifier">?</span><span class="format_specifier">}</span><span class="string_literal">"</span><span class="comma">,</span> <span class="parenthesis">(</span><span class="numeric_literal">3</span><span class="comma">,</span> <span class="numeric_literal">4</span><span class="parenthesis">)</span><span class="parenthesis">)</span><span class="semicolon">;</span>          <span class="comment">// =&gt; "(3, 4)"</span>
-    <span class="macro">println!</span><span class="parenthesis">(</span><span class="string_literal">"</span><span class="format_specifier">{</span><span class="variable">value</span><span class="format_specifier">}</span><span class="string_literal">"</span><span class="comma">,</span> value<span class="operator">=</span><span class="numeric_literal">4</span><span class="parenthesis">)</span><span class="semicolon">;</span>      <span class="comment">// =&gt; "4"</span>
-    <span class="macro">println!</span><span class="parenthesis">(</span><span class="string_literal">"</span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal"> </span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal">"</span><span class="comma">,</span> <span class="numeric_literal">1</span><span class="comma">,</span> <span class="numeric_literal">2</span><span class="parenthesis">)</span><span class="semicolon">;</span>           <span class="comment">// =&gt; "1 2"</span>
-    <span class="macro">println!</span><span class="parenthesis">(</span><span class="string_literal">"</span><span class="format_specifier">{</span><span class="format_specifier">:</span><span class="numeric_literal">0</span><span class="numeric_literal">4</span><span class="format_specifier">}</span><span class="string_literal">"</span><span class="comma">,</span> <span class="numeric_literal">42</span><span class="parenthesis">)</span><span class="semicolon">;</span>             <span class="comment">// =&gt; "0042" with leading zerosV</span>
-    <span class="macro">println!</span><span class="parenthesis">(</span><span class="string_literal">"</span><span class="format_specifier">{</span><span class="numeric_literal">1</span><span class="format_specifier">}</span><span class="string_literal"> </span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal"> </span><span class="format_specifier">{</span><span class="numeric_literal">0</span><span class="format_specifier">}</span><span class="string_literal"> </span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal">"</span><span class="comma">,</span> <span class="numeric_literal">1</span><span class="comma">,</span> <span class="numeric_literal">2</span><span class="parenthesis">)</span><span class="semicolon">;</span>   <span class="comment">// =&gt; "2 1 1 2"</span>
-    <span class="macro">println!</span><span class="parenthesis">(</span><span class="string_literal">"</span><span class="format_specifier">{</span><span class="variable">argument</span><span class="format_specifier">}</span><span class="string_literal">"</span><span class="comma">,</span> argument <span class="operator">=</span> <span class="string_literal">"test"</span><span class="parenthesis">)</span><span class="semicolon">;</span>   <span class="comment">// =&gt; "test"</span>
-    <span class="macro">println!</span><span class="parenthesis">(</span><span class="string_literal">"</span><span class="format_specifier">{</span><span class="variable">name</span><span class="format_specifier">}</span><span class="string_literal"> </span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal">"</span><span class="comma">,</span> <span class="numeric_literal">1</span><span class="comma">,</span> name <span class="operator">=</span> <span class="numeric_literal">2</span><span class="parenthesis">)</span><span class="semicolon">;</span>          <span class="comment">// =&gt; "2 1"</span>
-    <span class="macro">println!</span><span class="parenthesis">(</span><span class="string_literal">"</span><span class="format_specifier">{</span><span class="variable">a</span><span class="format_specifier">}</span><span class="string_literal"> </span><span class="format_specifier">{</span><span class="variable">c</span><span class="format_specifier">}</span><span class="string_literal"> </span><span class="format_specifier">{</span><span class="variable">b</span><span class="format_specifier">}</span><span class="string_literal">"</span><span class="comma">,</span> a<span class="operator">=</span><span class="string_literal">"a"</span><span class="comma">,</span> b<span class="operator">=</span><span class="char_literal">'b'</span><span class="comma">,</span> c<span class="operator">=</span><span class="numeric_literal">3</span><span class="parenthesis">)</span><span class="semicolon">;</span>  <span class="comment">// =&gt; "a 3 b"</span>
-    <span class="macro">println!</span><span class="parenthesis">(</span><span class="string_literal">"{{</span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal">}}"</span><span class="comma">,</span> <span class="numeric_literal">2</span><span class="parenthesis">)</span><span class="semicolon">;</span>                       <span class="comment">// =&gt; "{2}"</span>
-    <span class="macro">println!</span><span class="parenthesis">(</span><span class="string_literal">"Hello </span><span class="format_specifier">{</span><span class="format_specifier">:</span><span class="numeric_literal">5</span><span class="format_specifier">}</span><span class="string_literal">!"</span><span class="comma">,</span> <span class="string_literal">"x"</span><span class="parenthesis">)</span><span class="semicolon">;</span>
-    <span class="macro">println!</span><span class="parenthesis">(</span><span class="string_literal">"Hello </span><span class="format_specifier">{</span><span class="format_specifier">:</span><span class="numeric_literal">1</span><span class="format_specifier">$</span><span class="format_specifier">}</span><span class="string_literal">!"</span><span class="comma">,</span> <span class="string_literal">"x"</span><span class="comma">,</span> <span class="numeric_literal">5</span><span class="parenthesis">)</span><span class="semicolon">;</span>
-    <span class="macro">println!</span><span class="parenthesis">(</span><span class="string_literal">"Hello </span><span class="format_specifier">{</span><span class="numeric_literal">1</span><span class="format_specifier">:</span><span class="numeric_literal">0</span><span class="format_specifier">$</span><span class="format_specifier">}</span><span class="string_literal">!"</span><span class="comma">,</span> <span class="numeric_literal">5</span><span class="comma">,</span> <span class="string_literal">"x"</span><span class="parenthesis">)</span><span class="semicolon">;</span>
-    <span class="macro">println!</span><span class="parenthesis">(</span><span class="string_literal">"Hello </span><span class="format_specifier">{</span><span class="format_specifier">:</span><span class="variable">width</span><span class="format_specifier">$</span><span class="format_specifier">}</span><span class="string_literal">!"</span><span class="comma">,</span> <span class="string_literal">"x"</span><span class="comma">,</span> width <span class="operator">=</span> <span class="numeric_literal">5</span><span class="parenthesis">)</span><span class="semicolon">;</span>
-    <span class="macro">println!</span><span class="parenthesis">(</span><span class="string_literal">"Hello </span><span class="format_specifier">{</span><span class="format_specifier">:</span><span class="format_specifier">&lt;</span><span class="numeric_literal">5</span><span class="format_specifier">}</span><span class="string_literal">!"</span><span class="comma">,</span> <span class="string_literal">"x"</span><span class="parenthesis">)</span><span class="semicolon">;</span>
-    <span class="macro">println!</span><span class="parenthesis">(</span><span class="string_literal">"Hello </span><span class="format_specifier">{</span><span class="format_specifier">:</span><span class="format_specifier">-</span><span class="format_specifier">&lt;</span><span class="numeric_literal">5</span><span class="format_specifier">}</span><span class="string_literal">!"</span><span class="comma">,</span> <span class="string_literal">"x"</span><span class="parenthesis">)</span><span class="semicolon">;</span>
-    <span class="macro">println!</span><span class="parenthesis">(</span><span class="string_literal">"Hello </span><span class="format_specifier">{</span><span class="format_specifier">:</span><span class="format_specifier">^</span><span class="numeric_literal">5</span><span class="format_specifier">}</span><span class="string_literal">!"</span><span class="comma">,</span> <span class="string_literal">"x"</span><span class="parenthesis">)</span><span class="semicolon">;</span>
-    <span class="macro">println!</span><span class="parenthesis">(</span><span class="string_literal">"Hello </span><span class="format_specifier">{</span><span class="format_specifier">:</span><span class="format_specifier">&gt;</span><span class="numeric_literal">5</span><span class="format_specifier">}</span><span class="string_literal">!"</span><span class="comma">,</span> <span class="string_literal">"x"</span><span class="parenthesis">)</span><span class="semicolon">;</span>
-    <span class="macro">println!</span><span class="parenthesis">(</span><span class="string_literal">"Hello </span><span class="format_specifier">{</span><span class="format_specifier">:</span><span class="format_specifier">+</span><span class="format_specifier">}</span><span class="string_literal">!"</span><span class="comma">,</span> <span class="numeric_literal">5</span><span class="parenthesis">)</span><span class="semicolon">;</span>
-    <span class="macro">println!</span><span class="parenthesis">(</span><span class="string_literal">"</span><span class="format_specifier">{</span><span class="format_specifier">:</span><span class="format_specifier">#</span><span class="variable">x</span><span class="format_specifier">}</span><span class="string_literal">!"</span><span class="comma">,</span> <span class="numeric_literal">27</span><span class="parenthesis">)</span><span class="semicolon">;</span>
-    <span class="macro">println!</span><span class="parenthesis">(</span><span class="string_literal">"Hello </span><span class="format_specifier">{</span><span class="format_specifier">:</span><span class="numeric_literal">0</span><span class="numeric_literal">5</span><span class="format_specifier">}</span><span class="string_literal">!"</span><span class="comma">,</span> <span class="numeric_literal">5</span><span class="parenthesis">)</span><span class="semicolon">;</span>
-    <span class="macro">println!</span><span class="parenthesis">(</span><span class="string_literal">"Hello </span><span class="format_specifier">{</span><span class="format_specifier">:</span><span class="numeric_literal">0</span><span class="numeric_literal">5</span><span class="format_specifier">}</span><span class="string_literal">!"</span><span class="comma">,</span> <span class="punctuation">-</span><span class="numeric_literal">5</span><span class="parenthesis">)</span><span class="semicolon">;</span>
-    <span class="macro">println!</span><span class="parenthesis">(</span><span class="string_literal">"</span><span class="format_specifier">{</span><span class="format_specifier">:</span><span class="format_specifier">#</span><span class="numeric_literal">0</span><span class="numeric_literal">10</span><span class="variable">x</span><span class="format_specifier">}</span><span class="string_literal">!"</span><span class="comma">,</span> <span class="numeric_literal">27</span><span class="parenthesis">)</span><span class="semicolon">;</span>
-    <span class="macro">println!</span><span class="parenthesis">(</span><span class="string_literal">"Hello </span><span class="format_specifier">{</span><span class="numeric_literal">0</span><span class="format_specifier">}</span><span class="string_literal"> is </span><span class="format_specifier">{</span><span class="numeric_literal">1</span><span class="format_specifier">:</span><span class="format_specifier">.</span><span class="numeric_literal">5</span><span class="format_specifier">}</span><span class="string_literal">"</span><span class="comma">,</span> <span class="string_literal">"x"</span><span class="comma">,</span> <span class="numeric_literal">0.01</span><span class="parenthesis">)</span><span class="semicolon">;</span>
-    <span class="macro">println!</span><span class="parenthesis">(</span><span class="string_literal">"Hello </span><span class="format_specifier">{</span><span class="numeric_literal">1</span><span class="format_specifier">}</span><span class="string_literal"> is </span><span class="format_specifier">{</span><span class="numeric_literal">2</span><span class="format_specifier">:</span><span class="format_specifier">.</span><span class="numeric_literal">0</span><span class="format_specifier">$</span><span class="format_specifier">}</span><span class="string_literal">"</span><span class="comma">,</span> <span class="numeric_literal">5</span><span class="comma">,</span> <span class="string_literal">"x"</span><span class="comma">,</span> <span class="numeric_literal">0.01</span><span class="parenthesis">)</span><span class="semicolon">;</span>
-    <span class="macro">println!</span><span class="parenthesis">(</span><span class="string_literal">"Hello </span><span class="format_specifier">{</span><span class="numeric_literal">0</span><span class="format_specifier">}</span><span class="string_literal"> is </span><span class="format_specifier">{</span><span class="numeric_literal">2</span><span class="format_specifier">:</span><span class="format_specifier">.</span><span class="numeric_literal">1</span><span class="format_specifier">$</span><span class="format_specifier">}</span><span class="string_literal">"</span><span class="comma">,</span> <span class="string_literal">"x"</span><span class="comma">,</span> <span class="numeric_literal">5</span><span class="comma">,</span> <span class="numeric_literal">0.01</span><span class="parenthesis">)</span><span class="semicolon">;</span>
-    <span class="macro">println!</span><span class="parenthesis">(</span><span class="string_literal">"Hello </span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal"> is </span><span class="format_specifier">{</span><span class="format_specifier">:</span><span class="format_specifier">.</span><span class="format_specifier">*</span><span class="format_specifier">}</span><span class="string_literal">"</span><span class="comma">,</span>    <span class="string_literal">"x"</span><span class="comma">,</span> <span class="numeric_literal">5</span><span class="comma">,</span> <span class="numeric_literal">0.01</span><span class="parenthesis">)</span><span class="semicolon">;</span>
-    <span class="macro">println!</span><span class="parenthesis">(</span><span class="string_literal">"Hello </span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal"> is </span><span class="format_specifier">{</span><span class="numeric_literal">2</span><span class="format_specifier">:</span><span class="format_specifier">.</span><span class="format_specifier">*</span><span class="format_specifier">}</span><span class="string_literal">"</span><span class="comma">,</span>   <span class="string_literal">"x"</span><span class="comma">,</span> <span class="numeric_literal">5</span><span class="comma">,</span> <span class="numeric_literal">0.01</span><span class="parenthesis">)</span><span class="semicolon">;</span>
-    <span class="macro">println!</span><span class="parenthesis">(</span><span class="string_literal">"Hello </span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal"> is </span><span class="format_specifier">{</span><span class="variable">number</span><span class="format_specifier">:</span><span class="format_specifier">.</span><span class="variable">prec</span><span class="format_specifier">$</span><span class="format_specifier">}</span><span class="string_literal">"</span><span class="comma">,</span> <span class="string_literal">"x"</span><span class="comma">,</span> prec <span class="operator">=</span> <span class="numeric_literal">5</span><span class="comma">,</span> number <span class="operator">=</span> <span class="numeric_literal">0.01</span><span class="parenthesis">)</span><span class="semicolon">;</span>
-    <span class="macro">println!</span><span class="parenthesis">(</span><span class="string_literal">"</span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal">, `</span><span class="format_specifier">{</span><span class="variable">name</span><span class="format_specifier">:</span><span class="format_specifier">.</span><span class="format_specifier">*</span><span class="format_specifier">}</span><span class="string_literal">` has 3 fractional digits"</span><span class="comma">,</span> <span class="string_literal">"Hello"</span><span class="comma">,</span> <span class="numeric_literal">3</span><span class="comma">,</span> name<span class="operator">=</span><span class="numeric_literal">1234.56</span><span class="parenthesis">)</span><span class="semicolon">;</span>
-    <span class="macro">println!</span><span class="parenthesis">(</span><span class="string_literal">"</span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal">, `</span><span class="format_specifier">{</span><span class="variable">name</span><span class="format_specifier">:</span><span class="format_specifier">.</span><span class="format_specifier">*</span><span class="format_specifier">}</span><span class="string_literal">` has 3 characters"</span><span class="comma">,</span> <span class="string_literal">"Hello"</span><span class="comma">,</span> <span class="numeric_literal">3</span><span class="comma">,</span> name<span class="operator">=</span><span class="string_literal">"1234.56"</span><span class="parenthesis">)</span><span class="semicolon">;</span>
-    <span class="macro">println!</span><span class="parenthesis">(</span><span class="string_literal">"</span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal">, `</span><span class="format_specifier">{</span><span class="variable">name</span><span class="format_specifier">:</span><span class="format_specifier">&gt;</span><span class="numeric_literal">8</span><span class="format_specifier">.</span><span class="format_specifier">*</span><span class="format_specifier">}</span><span class="string_literal">` has 3 right-aligned characters"</span><span class="comma">,</span> <span class="string_literal">"Hello"</span><span class="comma">,</span> <span class="numeric_literal">3</span><span class="comma">,</span> name<span class="operator">=</span><span class="string_literal">"1234.56"</span><span class="parenthesis">)</span><span class="semicolon">;</span>
-    <span class="macro">println!</span><span class="parenthesis">(</span><span class="string_literal">"Hello {{}}"</span><span class="parenthesis">)</span><span class="semicolon">;</span>
-    <span class="macro">println!</span><span class="parenthesis">(</span><span class="string_literal">"{{ Hello"</span><span class="parenthesis">)</span><span class="semicolon">;</span>
+    <span class="macro">println!</span><span class="parentheses">(</span><span class="string_literal">"Hello"</span><span class="parentheses">)</span><span class="semicolon">;</span>                 <span class="comment">// =&gt; "Hello"</span>
+    <span class="macro">println!</span><span class="parentheses">(</span><span class="string_literal">"Hello, </span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal">!"</span><span class="comma">,</span> <span class="string_literal">"world"</span><span class="parentheses">)</span><span class="semicolon">;</span>   <span class="comment">// =&gt; "Hello, world!"</span>
+    <span class="macro">println!</span><span class="parentheses">(</span><span class="string_literal">"The number is </span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal">"</span><span class="comma">,</span> <span class="numeric_literal">1</span><span class="parentheses">)</span><span class="semicolon">;</span>   <span class="comment">// =&gt; "The number is 1"</span>
+    <span class="macro">println!</span><span class="parentheses">(</span><span class="string_literal">"</span><span class="format_specifier">{</span><span class="format_specifier">:</span><span class="format_specifier">?</span><span class="format_specifier">}</span><span class="string_literal">"</span><span class="comma">,</span> <span class="parentheses">(</span><span class="numeric_literal">3</span><span class="comma">,</span> <span class="numeric_literal">4</span><span class="parentheses">)</span><span class="parentheses">)</span><span class="semicolon">;</span>          <span class="comment">// =&gt; "(3, 4)"</span>
+    <span class="macro">println!</span><span class="parentheses">(</span><span class="string_literal">"</span><span class="format_specifier">{</span><span class="variable">value</span><span class="format_specifier">}</span><span class="string_literal">"</span><span class="comma">,</span> value<span class="operator">=</span><span class="numeric_literal">4</span><span class="parentheses">)</span><span class="semicolon">;</span>      <span class="comment">// =&gt; "4"</span>
+    <span class="macro">println!</span><span class="parentheses">(</span><span class="string_literal">"</span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal"> </span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal">"</span><span class="comma">,</span> <span class="numeric_literal">1</span><span class="comma">,</span> <span class="numeric_literal">2</span><span class="parentheses">)</span><span class="semicolon">;</span>           <span class="comment">// =&gt; "1 2"</span>
+    <span class="macro">println!</span><span class="parentheses">(</span><span class="string_literal">"</span><span class="format_specifier">{</span><span class="format_specifier">:</span><span class="numeric_literal">0</span><span class="numeric_literal">4</span><span class="format_specifier">}</span><span class="string_literal">"</span><span class="comma">,</span> <span class="numeric_literal">42</span><span class="parentheses">)</span><span class="semicolon">;</span>             <span class="comment">// =&gt; "0042" with leading zerosV</span>
+    <span class="macro">println!</span><span class="parentheses">(</span><span class="string_literal">"</span><span class="format_specifier">{</span><span class="numeric_literal">1</span><span class="format_specifier">}</span><span class="string_literal"> </span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal"> </span><span class="format_specifier">{</span><span class="numeric_literal">0</span><span class="format_specifier">}</span><span class="string_literal"> </span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal">"</span><span class="comma">,</span> <span class="numeric_literal">1</span><span class="comma">,</span> <span class="numeric_literal">2</span><span class="parentheses">)</span><span class="semicolon">;</span>   <span class="comment">// =&gt; "2 1 1 2"</span>
+    <span class="macro">println!</span><span class="parentheses">(</span><span class="string_literal">"</span><span class="format_specifier">{</span><span class="variable">argument</span><span class="format_specifier">}</span><span class="string_literal">"</span><span class="comma">,</span> argument <span class="operator">=</span> <span class="string_literal">"test"</span><span class="parentheses">)</span><span class="semicolon">;</span>   <span class="comment">// =&gt; "test"</span>
+    <span class="macro">println!</span><span class="parentheses">(</span><span class="string_literal">"</span><span class="format_specifier">{</span><span class="variable">name</span><span class="format_specifier">}</span><span class="string_literal"> </span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal">"</span><span class="comma">,</span> <span class="numeric_literal">1</span><span class="comma">,</span> name <span class="operator">=</span> <span class="numeric_literal">2</span><span class="parentheses">)</span><span class="semicolon">;</span>          <span class="comment">// =&gt; "2 1"</span>
+    <span class="macro">println!</span><span class="parentheses">(</span><span class="string_literal">"</span><span class="format_specifier">{</span><span class="variable">a</span><span class="format_specifier">}</span><span class="string_literal"> </span><span class="format_specifier">{</span><span class="variable">c</span><span class="format_specifier">}</span><span class="string_literal"> </span><span class="format_specifier">{</span><span class="variable">b</span><span class="format_specifier">}</span><span class="string_literal">"</span><span class="comma">,</span> a<span class="operator">=</span><span class="string_literal">"a"</span><span class="comma">,</span> b<span class="operator">=</span><span class="char_literal">'b'</span><span class="comma">,</span> c<span class="operator">=</span><span class="numeric_literal">3</span><span class="parentheses">)</span><span class="semicolon">;</span>  <span class="comment">// =&gt; "a 3 b"</span>
+    <span class="macro">println!</span><span class="parentheses">(</span><span class="string_literal">"{{</span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal">}}"</span><span class="comma">,</span> <span class="numeric_literal">2</span><span class="parentheses">)</span><span class="semicolon">;</span>                       <span class="comment">// =&gt; "{2}"</span>
+    <span class="macro">println!</span><span class="parentheses">(</span><span class="string_literal">"Hello </span><span class="format_specifier">{</span><span class="format_specifier">:</span><span class="numeric_literal">5</span><span class="format_specifier">}</span><span class="string_literal">!"</span><span class="comma">,</span> <span class="string_literal">"x"</span><span class="parentheses">)</span><span class="semicolon">;</span>
+    <span class="macro">println!</span><span class="parentheses">(</span><span class="string_literal">"Hello </span><span class="format_specifier">{</span><span class="format_specifier">:</span><span class="numeric_literal">1</span><span class="format_specifier">$</span><span class="format_specifier">}</span><span class="string_literal">!"</span><span class="comma">,</span> <span class="string_literal">"x"</span><span class="comma">,</span> <span class="numeric_literal">5</span><span class="parentheses">)</span><span class="semicolon">;</span>
+    <span class="macro">println!</span><span class="parentheses">(</span><span class="string_literal">"Hello </span><span class="format_specifier">{</span><span class="numeric_literal">1</span><span class="format_specifier">:</span><span class="numeric_literal">0</span><span class="format_specifier">$</span><span class="format_specifier">}</span><span class="string_literal">!"</span><span class="comma">,</span> <span class="numeric_literal">5</span><span class="comma">,</span> <span class="string_literal">"x"</span><span class="parentheses">)</span><span class="semicolon">;</span>
+    <span class="macro">println!</span><span class="parentheses">(</span><span class="string_literal">"Hello </span><span class="format_specifier">{</span><span class="format_specifier">:</span><span class="variable">width</span><span class="format_specifier">$</span><span class="format_specifier">}</span><span class="string_literal">!"</span><span class="comma">,</span> <span class="string_literal">"x"</span><span class="comma">,</span> width <span class="operator">=</span> <span class="numeric_literal">5</span><span class="parentheses">)</span><span class="semicolon">;</span>
+    <span class="macro">println!</span><span class="parentheses">(</span><span class="string_literal">"Hello </span><span class="format_specifier">{</span><span class="format_specifier">:</span><span class="format_specifier">&lt;</span><span class="numeric_literal">5</span><span class="format_specifier">}</span><span class="string_literal">!"</span><span class="comma">,</span> <span class="string_literal">"x"</span><span class="parentheses">)</span><span class="semicolon">;</span>
+    <span class="macro">println!</span><span class="parentheses">(</span><span class="string_literal">"Hello </span><span class="format_specifier">{</span><span class="format_specifier">:</span><span class="format_specifier">-</span><span class="format_specifier">&lt;</span><span class="numeric_literal">5</span><span class="format_specifier">}</span><span class="string_literal">!"</span><span class="comma">,</span> <span class="string_literal">"x"</span><span class="parentheses">)</span><span class="semicolon">;</span>
+    <span class="macro">println!</span><span class="parentheses">(</span><span class="string_literal">"Hello </span><span class="format_specifier">{</span><span class="format_specifier">:</span><span class="format_specifier">^</span><span class="numeric_literal">5</span><span class="format_specifier">}</span><span class="string_literal">!"</span><span class="comma">,</span> <span class="string_literal">"x"</span><span class="parentheses">)</span><span class="semicolon">;</span>
+    <span class="macro">println!</span><span class="parentheses">(</span><span class="string_literal">"Hello </span><span class="format_specifier">{</span><span class="format_specifier">:</span><span class="format_specifier">&gt;</span><span class="numeric_literal">5</span><span class="format_specifier">}</span><span class="string_literal">!"</span><span class="comma">,</span> <span class="string_literal">"x"</span><span class="parentheses">)</span><span class="semicolon">;</span>
+    <span class="macro">println!</span><span class="parentheses">(</span><span class="string_literal">"Hello </span><span class="format_specifier">{</span><span class="format_specifier">:</span><span class="format_specifier">+</span><span class="format_specifier">}</span><span class="string_literal">!"</span><span class="comma">,</span> <span class="numeric_literal">5</span><span class="parentheses">)</span><span class="semicolon">;</span>
+    <span class="macro">println!</span><span class="parentheses">(</span><span class="string_literal">"</span><span class="format_specifier">{</span><span class="format_specifier">:</span><span class="format_specifier">#</span><span class="variable">x</span><span class="format_specifier">}</span><span class="string_literal">!"</span><span class="comma">,</span> <span class="numeric_literal">27</span><span class="parentheses">)</span><span class="semicolon">;</span>
+    <span class="macro">println!</span><span class="parentheses">(</span><span class="string_literal">"Hello </span><span class="format_specifier">{</span><span class="format_specifier">:</span><span class="numeric_literal">0</span><span class="numeric_literal">5</span><span class="format_specifier">}</span><span class="string_literal">!"</span><span class="comma">,</span> <span class="numeric_literal">5</span><span class="parentheses">)</span><span class="semicolon">;</span>
+    <span class="macro">println!</span><span class="parentheses">(</span><span class="string_literal">"Hello </span><span class="format_specifier">{</span><span class="format_specifier">:</span><span class="numeric_literal">0</span><span class="numeric_literal">5</span><span class="format_specifier">}</span><span class="string_literal">!"</span><span class="comma">,</span> <span class="punctuation">-</span><span class="numeric_literal">5</span><span class="parentheses">)</span><span class="semicolon">;</span>
+    <span class="macro">println!</span><span class="parentheses">(</span><span class="string_literal">"</span><span class="format_specifier">{</span><span class="format_specifier">:</span><span class="format_specifier">#</span><span class="numeric_literal">0</span><span class="numeric_literal">10</span><span class="variable">x</span><span class="format_specifier">}</span><span class="string_literal">!"</span><span class="comma">,</span> <span class="numeric_literal">27</span><span class="parentheses">)</span><span class="semicolon">;</span>
+    <span class="macro">println!</span><span class="parentheses">(</span><span class="string_literal">"Hello </span><span class="format_specifier">{</span><span class="numeric_literal">0</span><span class="format_specifier">}</span><span class="string_literal"> is </span><span class="format_specifier">{</span><span class="numeric_literal">1</span><span class="format_specifier">:</span><span class="format_specifier">.</span><span class="numeric_literal">5</span><span class="format_specifier">}</span><span class="string_literal">"</span><span class="comma">,</span> <span class="string_literal">"x"</span><span class="comma">,</span> <span class="numeric_literal">0.01</span><span class="parentheses">)</span><span class="semicolon">;</span>
+    <span class="macro">println!</span><span class="parentheses">(</span><span class="string_literal">"Hello </span><span class="format_specifier">{</span><span class="numeric_literal">1</span><span class="format_specifier">}</span><span class="string_literal"> is </span><span class="format_specifier">{</span><span class="numeric_literal">2</span><span class="format_specifier">:</span><span class="format_specifier">.</span><span class="numeric_literal">0</span><span class="format_specifier">$</span><span class="format_specifier">}</span><span class="string_literal">"</span><span class="comma">,</span> <span class="numeric_literal">5</span><span class="comma">,</span> <span class="string_literal">"x"</span><span class="comma">,</span> <span class="numeric_literal">0.01</span><span class="parentheses">)</span><span class="semicolon">;</span>
+    <span class="macro">println!</span><span class="parentheses">(</span><span class="string_literal">"Hello </span><span class="format_specifier">{</span><span class="numeric_literal">0</span><span class="format_specifier">}</span><span class="string_literal"> is </span><span class="format_specifier">{</span><span class="numeric_literal">2</span><span class="format_specifier">:</span><span class="format_specifier">.</span><span class="numeric_literal">1</span><span class="format_specifier">$</span><span class="format_specifier">}</span><span class="string_literal">"</span><span class="comma">,</span> <span class="string_literal">"x"</span><span class="comma">,</span> <span class="numeric_literal">5</span><span class="comma">,</span> <span class="numeric_literal">0.01</span><span class="parentheses">)</span><span class="semicolon">;</span>
+    <span class="macro">println!</span><span class="parentheses">(</span><span class="string_literal">"Hello </span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal"> is </span><span class="format_specifier">{</span><span class="format_specifier">:</span><span class="format_specifier">.</span><span class="format_specifier">*</span><span class="format_specifier">}</span><span class="string_literal">"</span><span class="comma">,</span>    <span class="string_literal">"x"</span><span class="comma">,</span> <span class="numeric_literal">5</span><span class="comma">,</span> <span class="numeric_literal">0.01</span><span class="parentheses">)</span><span class="semicolon">;</span>
+    <span class="macro">println!</span><span class="parentheses">(</span><span class="string_literal">"Hello </span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal"> is </span><span class="format_specifier">{</span><span class="numeric_literal">2</span><span class="format_specifier">:</span><span class="format_specifier">.</span><span class="format_specifier">*</span><span class="format_specifier">}</span><span class="string_literal">"</span><span class="comma">,</span>   <span class="string_literal">"x"</span><span class="comma">,</span> <span class="numeric_literal">5</span><span class="comma">,</span> <span class="numeric_literal">0.01</span><span class="parentheses">)</span><span class="semicolon">;</span>
+    <span class="macro">println!</span><span class="parentheses">(</span><span class="string_literal">"Hello </span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal"> is </span><span class="format_specifier">{</span><span class="variable">number</span><span class="format_specifier">:</span><span class="format_specifier">.</span><span class="variable">prec</span><span class="format_specifier">$</span><span class="format_specifier">}</span><span class="string_literal">"</span><span class="comma">,</span> <span class="string_literal">"x"</span><span class="comma">,</span> prec <span class="operator">=</span> <span class="numeric_literal">5</span><span class="comma">,</span> number <span class="operator">=</span> <span class="numeric_literal">0.01</span><span class="parentheses">)</span><span class="semicolon">;</span>
+    <span class="macro">println!</span><span class="parentheses">(</span><span class="string_literal">"</span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal">, `</span><span class="format_specifier">{</span><span class="variable">name</span><span class="format_specifier">:</span><span class="format_specifier">.</span><span class="format_specifier">*</span><span class="format_specifier">}</span><span class="string_literal">` has 3 fractional digits"</span><span class="comma">,</span> <span class="string_literal">"Hello"</span><span class="comma">,</span> <span class="numeric_literal">3</span><span class="comma">,</span> name<span class="operator">=</span><span class="numeric_literal">1234.56</span><span class="parentheses">)</span><span class="semicolon">;</span>
+    <span class="macro">println!</span><span class="parentheses">(</span><span class="string_literal">"</span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal">, `</span><span class="format_specifier">{</span><span class="variable">name</span><span class="format_specifier">:</span><span class="format_specifier">.</span><span class="format_specifier">*</span><span class="format_specifier">}</span><span class="string_literal">` has 3 characters"</span><span class="comma">,</span> <span class="string_literal">"Hello"</span><span class="comma">,</span> <span class="numeric_literal">3</span><span class="comma">,</span> name<span class="operator">=</span><span class="string_literal">"1234.56"</span><span class="parentheses">)</span><span class="semicolon">;</span>
+    <span class="macro">println!</span><span class="parentheses">(</span><span class="string_literal">"</span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal">, `</span><span class="format_specifier">{</span><span class="variable">name</span><span class="format_specifier">:</span><span class="format_specifier">&gt;</span><span class="numeric_literal">8</span><span class="format_specifier">.</span><span class="format_specifier">*</span><span class="format_specifier">}</span><span class="string_literal">` has 3 right-aligned characters"</span><span class="comma">,</span> <span class="string_literal">"Hello"</span><span class="comma">,</span> <span class="numeric_literal">3</span><span class="comma">,</span> name<span class="operator">=</span><span class="string_literal">"1234.56"</span><span class="parentheses">)</span><span class="semicolon">;</span>
+    <span class="macro">println!</span><span class="parentheses">(</span><span class="string_literal">"Hello {{}}"</span><span class="parentheses">)</span><span class="semicolon">;</span>
+    <span class="macro">println!</span><span class="parentheses">(</span><span class="string_literal">"{{ Hello"</span><span class="parentheses">)</span><span class="semicolon">;</span>
 
-    <span class="macro">println!</span><span class="parenthesis">(</span><span class="string_literal">r"Hello, </span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal">!"</span><span class="comma">,</span> <span class="string_literal">"world"</span><span class="parenthesis">)</span><span class="semicolon">;</span>
+    <span class="macro">println!</span><span class="parentheses">(</span><span class="string_literal">r"Hello, </span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal">!"</span><span class="comma">,</span> <span class="string_literal">"world"</span><span class="parentheses">)</span><span class="semicolon">;</span>
 
     <span class="comment">// escape sequences</span>
-    <span class="macro">println!</span><span class="parenthesis">(</span><span class="string_literal">"Hello</span><span class="escape_sequence">\n</span><span class="string_literal">World"</span><span class="parenthesis">)</span><span class="semicolon">;</span>
-    <span class="macro">println!</span><span class="parenthesis">(</span><span class="string_literal">"</span><span class="escape_sequence">\u{48}</span><span class="escape_sequence">\x65</span><span class="escape_sequence">\x6C</span><span class="escape_sequence">\x6C</span><span class="escape_sequence">\x6F</span><span class="string_literal"> World"</span><span class="parenthesis">)</span><span class="semicolon">;</span>
+    <span class="macro">println!</span><span class="parentheses">(</span><span class="string_literal">"Hello</span><span class="escape_sequence">\n</span><span class="string_literal">World"</span><span class="parentheses">)</span><span class="semicolon">;</span>
+    <span class="macro">println!</span><span class="parentheses">(</span><span class="string_literal">"</span><span class="escape_sequence">\u{48}</span><span class="escape_sequence">\x65</span><span class="escape_sequence">\x6C</span><span class="escape_sequence">\x6C</span><span class="escape_sequence">\x6F</span><span class="string_literal"> World"</span><span class="parentheses">)</span><span class="semicolon">;</span>
 
-    <span class="macro">println!</span><span class="parenthesis">(</span><span class="string_literal">"</span><span class="format_specifier">{</span><span class="escape_sequence">\x41</span><span class="format_specifier">}</span><span class="string_literal">"</span><span class="comma">,</span> A <span class="operator">=</span> <span class="numeric_literal">92</span><span class="parenthesis">)</span><span class="semicolon">;</span>
-    <span class="macro">println!</span><span class="parenthesis">(</span><span class="string_literal">"</span><span class="format_specifier">{</span><span class="variable">ничоси</span><span class="format_specifier">}</span><span class="string_literal">"</span><span class="comma">,</span> ничоси <span class="operator">=</span> <span class="numeric_literal">92</span><span class="parenthesis">)</span><span class="semicolon">;</span>
+    <span class="macro">println!</span><span class="parentheses">(</span><span class="string_literal">"</span><span class="format_specifier">{</span><span class="escape_sequence">\x41</span><span class="format_specifier">}</span><span class="string_literal">"</span><span class="comma">,</span> A <span class="operator">=</span> <span class="numeric_literal">92</span><span class="parentheses">)</span><span class="semicolon">;</span>
+    <span class="macro">println!</span><span class="parentheses">(</span><span class="string_literal">"</span><span class="format_specifier">{</span><span class="variable">ничоси</span><span class="format_specifier">}</span><span class="string_literal">"</span><span class="comma">,</span> ничоси <span class="operator">=</span> <span class="numeric_literal">92</span><span class="parentheses">)</span><span class="semicolon">;</span>
 
-    <span class="macro">println!</span><span class="parenthesis">(</span><span class="string_literal">"</span><span class="format_specifier">{</span><span class="format_specifier">:</span><span class="variable">x</span><span class="format_specifier">?</span><span class="format_specifier">}</span><span class="string_literal"> </span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal"> "</span><span class="comma">,</span> thingy<span class="comma">,</span> n2<span class="parenthesis">)</span><span class="semicolon">;</span>
+    <span class="macro">println!</span><span class="parentheses">(</span><span class="string_literal">"</span><span class="format_specifier">{</span><span class="format_specifier">:</span><span class="variable">x</span><span class="format_specifier">?</span><span class="format_specifier">}</span><span class="string_literal"> </span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal"> "</span><span class="comma">,</span> thingy<span class="comma">,</span> n2<span class="parentheses">)</span><span class="semicolon">;</span>
 <span class="brace">}</span></code></pre>
\ No newline at end of file
diff --git a/crates/ide/src/syntax_highlighting/test_data/highlight_unsafe.html b/crates/ide/src/syntax_highlighting/test_data/highlight_unsafe.html
index 9d4d6d4a08..56a4380fbf 100644
--- a/crates/ide/src/syntax_highlighting/test_data/highlight_unsafe.html
+++ b/crates/ide/src/syntax_highlighting/test_data/highlight_unsafe.html
@@ -36,7 +36,7 @@ pre                 { color: #DCDCCC; background: #3F3F3F; font-size: 22px; padd
 
 .unresolved_reference { color: #FC5555; text-decoration: wavy underline; }
 </style>
-<pre><code><span class="keyword unsafe">unsafe</span> <span class="keyword">fn</span> <span class="function declaration unsafe">unsafe_fn</span><span class="parenthesis">(</span><span class="parenthesis">)</span> <span class="brace">{</span><span class="brace">}</span>
+<pre><code><span class="keyword unsafe">unsafe</span> <span class="keyword">fn</span> <span class="function declaration unsafe">unsafe_fn</span><span class="parentheses">(</span><span class="parentheses">)</span> <span class="brace">{</span><span class="brace">}</span>
 
 <span class="keyword">union</span> <span class="union declaration">Union</span> <span class="brace">{</span>
     <span class="field declaration">a</span><span class="colon">:</span> <span class="builtin_type">u32</span><span class="comma">,</span>
@@ -46,7 +46,7 @@ pre                 { color: #DCDCCC; background: #3F3F3F; font-size: 22px; padd
 <span class="keyword">struct</span> <span class="struct declaration">HasUnsafeFn</span><span class="semicolon">;</span>
 
 <span class="keyword">impl</span> <span class="struct">HasUnsafeFn</span> <span class="brace">{</span>
-    <span class="keyword unsafe">unsafe</span> <span class="keyword">fn</span> <span class="function declaration associated unsafe">unsafe_method</span><span class="parenthesis">(</span><span class="operator">&</span><span class="self_keyword">self</span><span class="parenthesis">)</span> <span class="brace">{</span><span class="brace">}</span>
+    <span class="keyword unsafe">unsafe</span> <span class="keyword">fn</span> <span class="function declaration associated unsafe">unsafe_method</span><span class="parentheses">(</span><span class="operator">&</span><span class="self_keyword">self</span><span class="parentheses">)</span> <span class="brace">{</span><span class="brace">}</span>
 <span class="brace">}</span>
 
 <span class="keyword">struct</span> <span class="struct declaration">TypeForStaticMut</span> <span class="brace">{</span>
@@ -55,31 +55,31 @@ pre                 { color: #DCDCCC; background: #3F3F3F; font-size: 22px; padd
 
 <span class="keyword">static</span> <span class="keyword">mut</span> <span class="static declaration mutable unsafe">global_mut</span><span class="colon">:</span> <span class="struct">TypeForStaticMut</span> <span class="operator">=</span> <span class="struct">TypeForStaticMut</span> <span class="brace">{</span> <span class="field">a</span><span class="colon">:</span> <span class="numeric_literal">0</span> <span class="brace">}</span><span class="semicolon">;</span>
 
-<span class="attribute attribute">#</span><span class="attribute attribute">[</span><span class="function attribute">repr</span><span class="parenthesis attribute">(</span><span class="attribute attribute">packed</span><span class="parenthesis attribute">)</span><span class="attribute attribute">]</span>
+<span class="attribute attribute">#</span><span class="attribute attribute">[</span><span class="function attribute">repr</span><span class="parentheses attribute">(</span><span class="attribute attribute">packed</span><span class="parentheses attribute">)</span><span class="attribute attribute">]</span>
 <span class="keyword">struct</span> <span class="struct declaration">Packed</span> <span class="brace">{</span>
     <span class="field declaration">a</span><span class="colon">:</span> <span class="builtin_type">u16</span><span class="comma">,</span>
 <span class="brace">}</span>
 
 <span class="keyword">trait</span> <span class="trait declaration">DoTheAutoref</span> <span class="brace">{</span>
-    <span class="keyword">fn</span> <span class="function declaration associated">calls_autoref</span><span class="parenthesis">(</span><span class="operator">&</span><span class="self_keyword">self</span><span class="parenthesis">)</span><span class="semicolon">;</span>
+    <span class="keyword">fn</span> <span class="function declaration associated">calls_autoref</span><span class="parentheses">(</span><span class="operator">&</span><span class="self_keyword">self</span><span class="parentheses">)</span><span class="semicolon">;</span>
 <span class="brace">}</span>
 
 <span class="keyword">impl</span> <span class="trait">DoTheAutoref</span> <span class="keyword">for</span> <span class="builtin_type">u16</span> <span class="brace">{</span>
-    <span class="keyword">fn</span> <span class="function declaration associated">calls_autoref</span><span class="parenthesis">(</span><span class="operator">&</span><span class="self_keyword">self</span><span class="parenthesis">)</span> <span class="brace">{</span><span class="brace">}</span>
+    <span class="keyword">fn</span> <span class="function declaration associated">calls_autoref</span><span class="parentheses">(</span><span class="operator">&</span><span class="self_keyword">self</span><span class="parentheses">)</span> <span class="brace">{</span><span class="brace">}</span>
 <span class="brace">}</span>
 
-<span class="keyword">fn</span> <span class="function declaration">main</span><span class="parenthesis">(</span><span class="parenthesis">)</span> <span class="brace">{</span>
+<span class="keyword">fn</span> <span class="function declaration">main</span><span class="parentheses">(</span><span class="parentheses">)</span> <span class="brace">{</span>
     <span class="keyword">let</span> <span class="variable declaration">x</span> <span class="operator">=</span> <span class="operator">&</span><span class="numeric_literal">5</span> <span class="keyword">as</span> <span class="keyword">*</span><span class="keyword">const</span> <span class="punctuation">_</span> <span class="keyword">as</span> <span class="keyword">*</span><span class="keyword">const</span> <span class="builtin_type">usize</span><span class="semicolon">;</span>
     <span class="keyword">let</span> <span class="variable declaration">u</span> <span class="operator">=</span> <span class="union">Union</span> <span class="brace">{</span> <span class="field">b</span><span class="colon">:</span> <span class="numeric_literal">0</span> <span class="brace">}</span><span class="semicolon">;</span>
     <span class="keyword unsafe">unsafe</span> <span class="brace">{</span>
         <span class="comment">// unsafe fn and method calls</span>
-        <span class="function unsafe">unsafe_fn</span><span class="parenthesis">(</span><span class="parenthesis">)</span><span class="semicolon">;</span>
+        <span class="function unsafe">unsafe_fn</span><span class="parentheses">(</span><span class="parentheses">)</span><span class="semicolon">;</span>
         <span class="keyword">let</span> <span class="variable declaration">b</span> <span class="operator">=</span> <span class="variable">u</span><span class="operator">.</span><span class="field unsafe">b</span><span class="semicolon">;</span>
         <span class="keyword control">match</span> <span class="variable">u</span> <span class="brace">{</span>
-            <span class="union">Union</span> <span class="brace">{</span> <span class="field unsafe">b</span><span class="colon">:</span> <span class="numeric_literal">0</span> <span class="brace">}</span> <span class="operator">=&gt;</span> <span class="parenthesis">(</span><span class="parenthesis">)</span><span class="comma">,</span>
-            <span class="union">Union</span> <span class="brace">{</span> <span class="field unsafe">a</span> <span class="brace">}</span> <span class="operator">=&gt;</span> <span class="parenthesis">(</span><span class="parenthesis">)</span><span class="comma">,</span>
+            <span class="union">Union</span> <span class="brace">{</span> <span class="field unsafe">b</span><span class="colon">:</span> <span class="numeric_literal">0</span> <span class="brace">}</span> <span class="operator">=&gt;</span> <span class="parentheses">(</span><span class="parentheses">)</span><span class="comma">,</span>
+            <span class="union">Union</span> <span class="brace">{</span> <span class="field unsafe">a</span> <span class="brace">}</span> <span class="operator">=&gt;</span> <span class="parentheses">(</span><span class="parentheses">)</span><span class="comma">,</span>
         <span class="brace">}</span>
-        <span class="struct">HasUnsafeFn</span><span class="operator">.</span><span class="function associated unsafe">unsafe_method</span><span class="parenthesis">(</span><span class="parenthesis">)</span><span class="semicolon">;</span>
+        <span class="struct">HasUnsafeFn</span><span class="operator">.</span><span class="function associated unsafe">unsafe_method</span><span class="parentheses">(</span><span class="parentheses">)</span><span class="semicolon">;</span>
 
         <span class="comment">// unsafe deref</span>
         <span class="keyword">let</span> <span class="variable declaration">y</span> <span class="operator">=</span> <span class="operator unsafe">*</span><span class="variable">x</span><span class="semicolon">;</span>
@@ -95,6 +95,6 @@ pre                 { color: #DCDCCC; background: #3F3F3F; font-size: 22px; padd
         <span class="keyword">let</span> <span class="struct">Packed</span> <span class="brace">{</span> <span class="field">a</span><span class="colon">:</span> <span class="keyword unsafe">ref</span> <span class="variable declaration">_a</span> <span class="brace">}</span> <span class="operator">=</span> <span class="variable">packed</span><span class="semicolon">;</span>
 
         <span class="comment">// unsafe auto ref of packed field</span>
-        <span class="variable">packed</span><span class="operator">.</span><span class="field">a</span><span class="operator">.</span><span class="function associated unsafe">calls_autoref</span><span class="parenthesis">(</span><span class="parenthesis">)</span><span class="semicolon">;</span>
+        <span class="variable">packed</span><span class="operator">.</span><span class="field">a</span><span class="operator">.</span><span class="function associated unsafe">calls_autoref</span><span class="parentheses">(</span><span class="parentheses">)</span><span class="semicolon">;</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/test_data/highlighting.html b/crates/ide/src/syntax_highlighting/test_data/highlighting.html
index 6b7447c46e..b7bec083b7 100644
--- a/crates/ide/src/syntax_highlighting/test_data/highlighting.html
+++ b/crates/ide/src/syntax_highlighting/test_data/highlighting.html
@@ -66,104 +66,104 @@ pre                 { color: #DCDCCC; background: #3F3F3F; font-size: 22px; padd
 <span class="brace">}</span>
 
 <span class="keyword">trait</span> <span class="trait declaration">Bar</span> <span class="brace">{</span>
-    <span class="keyword">fn</span> <span class="function declaration associated">bar</span><span class="parenthesis">(</span><span class="operator">&</span><span class="self_keyword">self</span><span class="parenthesis">)</span> <span class="operator">-&gt;</span> <span class="builtin_type">i32</span><span class="semicolon">;</span>
+    <span class="keyword">fn</span> <span class="function declaration associated">bar</span><span class="parentheses">(</span><span class="operator">&</span><span class="self_keyword">self</span><span class="parentheses">)</span> <span class="operator">-&gt;</span> <span class="builtin_type">i32</span><span class="semicolon">;</span>
 <span class="brace">}</span>
 
 <span class="keyword">impl</span> <span class="trait">Bar</span> <span class="keyword">for</span> <span class="struct">Foo</span> <span class="brace">{</span>
-    <span class="keyword">fn</span> <span class="function declaration associated">bar</span><span class="parenthesis">(</span><span class="operator">&</span><span class="self_keyword">self</span><span class="parenthesis">)</span> <span class="operator">-&gt;</span> <span class="builtin_type">i32</span> <span class="brace">{</span>
+    <span class="keyword">fn</span> <span class="function declaration associated">bar</span><span class="parentheses">(</span><span class="operator">&</span><span class="self_keyword">self</span><span class="parentheses">)</span> <span class="operator">-&gt;</span> <span class="builtin_type">i32</span> <span class="brace">{</span>
         <span class="self_keyword">self</span><span class="operator">.</span><span class="field">x</span>
     <span class="brace">}</span>
 <span class="brace">}</span>
 
 <span class="keyword">impl</span> <span class="struct">Foo</span> <span class="brace">{</span>
-    <span class="keyword">fn</span> <span class="function declaration associated">baz</span><span class="parenthesis">(</span><span class="keyword">mut</span> <span class="self_keyword mutable">self</span><span class="comma">,</span> <span class="value_param declaration">f</span><span class="colon">:</span> <span class="struct">Foo</span><span class="parenthesis">)</span> <span class="operator">-&gt;</span> <span class="builtin_type">i32</span> <span class="brace">{</span>
-        <span class="value_param">f</span><span class="operator">.</span><span class="function consuming associated">baz</span><span class="parenthesis">(</span><span class="self_keyword mutable consuming">self</span><span class="parenthesis">)</span>
+    <span class="keyword">fn</span> <span class="function declaration associated">baz</span><span class="parentheses">(</span><span class="keyword">mut</span> <span class="self_keyword mutable">self</span><span class="comma">,</span> <span class="value_param declaration">f</span><span class="colon">:</span> <span class="struct">Foo</span><span class="parentheses">)</span> <span class="operator">-&gt;</span> <span class="builtin_type">i32</span> <span class="brace">{</span>
+        <span class="value_param">f</span><span class="operator">.</span><span class="function consuming associated">baz</span><span class="parentheses">(</span><span class="self_keyword mutable consuming">self</span><span class="parentheses">)</span>
     <span class="brace">}</span>
 
-    <span class="keyword">fn</span> <span class="function declaration associated">qux</span><span class="parenthesis">(</span><span class="operator">&</span><span class="keyword">mut</span> <span class="self_keyword mutable">self</span><span class="parenthesis">)</span> <span class="brace">{</span>
+    <span class="keyword">fn</span> <span class="function declaration associated">qux</span><span class="parentheses">(</span><span class="operator">&</span><span class="keyword">mut</span> <span class="self_keyword mutable">self</span><span class="parentheses">)</span> <span class="brace">{</span>
         <span class="self_keyword mutable">self</span><span class="operator">.</span><span class="field">x</span> <span class="operator">=</span> <span class="numeric_literal">0</span><span class="semicolon">;</span>
     <span class="brace">}</span>
 
-    <span class="keyword">fn</span> <span class="function declaration associated">quop</span><span class="parenthesis">(</span><span class="operator">&</span><span class="self_keyword">self</span><span class="parenthesis">)</span> <span class="operator">-&gt;</span> <span class="builtin_type">i32</span> <span class="brace">{</span>
+    <span class="keyword">fn</span> <span class="function declaration associated">quop</span><span class="parentheses">(</span><span class="operator">&</span><span class="self_keyword">self</span><span class="parentheses">)</span> <span class="operator">-&gt;</span> <span class="builtin_type">i32</span> <span class="brace">{</span>
         <span class="self_keyword">self</span><span class="operator">.</span><span class="field">x</span>
     <span class="brace">}</span>
 <span class="brace">}</span>
 
-<span class="attribute attribute">#</span><span class="attribute attribute">[</span><span class="function attribute">derive</span><span class="parenthesis attribute">(</span><span class="attribute attribute">Copy</span><span class="parenthesis attribute">)</span><span class="attribute attribute">]</span>
+<span class="attribute attribute">#</span><span class="attribute attribute">[</span><span class="function attribute">derive</span><span class="parentheses attribute">(</span><span class="attribute attribute">Copy</span><span class="parentheses attribute">)</span><span class="attribute attribute">]</span>
 <span class="keyword">struct</span> <span class="struct declaration">FooCopy</span> <span class="brace">{</span>
     <span class="field declaration">x</span><span class="colon">:</span> <span class="builtin_type">u32</span><span class="comma">,</span>
 <span class="brace">}</span>
 
 <span class="keyword">impl</span> <span class="struct">FooCopy</span> <span class="brace">{</span>
-    <span class="keyword">fn</span> <span class="function declaration associated">baz</span><span class="parenthesis">(</span><span class="self_keyword">self</span><span class="comma">,</span> <span class="value_param declaration">f</span><span class="colon">:</span> <span class="struct">FooCopy</span><span class="parenthesis">)</span> <span class="operator">-&gt;</span> <span class="builtin_type">u32</span> <span class="brace">{</span>
-        <span class="value_param">f</span><span class="operator">.</span><span class="function associated">baz</span><span class="parenthesis">(</span><span class="self_keyword">self</span><span class="parenthesis">)</span>
+    <span class="keyword">fn</span> <span class="function declaration associated">baz</span><span class="parentheses">(</span><span class="self_keyword">self</span><span class="comma">,</span> <span class="value_param declaration">f</span><span class="colon">:</span> <span class="struct">FooCopy</span><span class="parentheses">)</span> <span class="operator">-&gt;</span> <span class="builtin_type">u32</span> <span class="brace">{</span>
+        <span class="value_param">f</span><span class="operator">.</span><span class="function associated">baz</span><span class="parentheses">(</span><span class="self_keyword">self</span><span class="parentheses">)</span>
     <span class="brace">}</span>
 
-    <span class="keyword">fn</span> <span class="function declaration associated">qux</span><span class="parenthesis">(</span><span class="operator">&</span><span class="keyword">mut</span> <span class="self_keyword mutable">self</span><span class="parenthesis">)</span> <span class="brace">{</span>
+    <span class="keyword">fn</span> <span class="function declaration associated">qux</span><span class="parentheses">(</span><span class="operator">&</span><span class="keyword">mut</span> <span class="self_keyword mutable">self</span><span class="parentheses">)</span> <span class="brace">{</span>
         <span class="self_keyword mutable">self</span><span class="operator">.</span><span class="field">x</span> <span class="operator">=</span> <span class="numeric_literal">0</span><span class="semicolon">;</span>
     <span class="brace">}</span>
 
-    <span class="keyword">fn</span> <span class="function declaration associated">quop</span><span class="parenthesis">(</span><span class="operator">&</span><span class="self_keyword">self</span><span class="parenthesis">)</span> <span class="operator">-&gt;</span> <span class="builtin_type">u32</span> <span class="brace">{</span>
+    <span class="keyword">fn</span> <span class="function declaration associated">quop</span><span class="parentheses">(</span><span class="operator">&</span><span class="self_keyword">self</span><span class="parentheses">)</span> <span class="operator">-&gt;</span> <span class="builtin_type">u32</span> <span class="brace">{</span>
         <span class="self_keyword">self</span><span class="operator">.</span><span class="field">x</span>
     <span class="brace">}</span>
 <span class="brace">}</span>
 
 <span class="keyword">static</span> <span class="keyword">mut</span> <span class="static declaration mutable unsafe">STATIC_MUT</span><span class="colon">:</span> <span class="builtin_type">i32</span> <span class="operator">=</span> <span class="numeric_literal">0</span><span class="semicolon">;</span>
 
-<span class="keyword">fn</span> <span class="function declaration">foo</span><span class="angle">&lt;</span><span class="lifetime declaration">'a</span><span class="comma">,</span> <span class="type_param declaration">T</span><span class="angle">&gt;</span><span class="parenthesis">(</span><span class="parenthesis">)</span> <span class="operator">-&gt;</span> <span class="type_param">T</span> <span class="brace">{</span>
-    <span class="function">foo</span><span class="operator">::</span><span class="angle">&lt;</span><span class="lifetime">'a</span><span class="comma">,</span> <span class="builtin_type">i32</span><span class="angle">&gt;</span><span class="parenthesis">(</span><span class="parenthesis">)</span>
+<span class="keyword">fn</span> <span class="function declaration">foo</span><span class="angle">&lt;</span><span class="lifetime declaration">'a</span><span class="comma">,</span> <span class="type_param declaration">T</span><span class="angle">&gt;</span><span class="parentheses">(</span><span class="parentheses">)</span> <span class="operator">-&gt;</span> <span class="type_param">T</span> <span class="brace">{</span>
+    <span class="function">foo</span><span class="operator">::</span><span class="angle">&lt;</span><span class="lifetime">'a</span><span class="comma">,</span> <span class="builtin_type">i32</span><span class="angle">&gt;</span><span class="parentheses">(</span><span class="parentheses">)</span>
 <span class="brace">}</span>
 
-<span class="keyword">fn</span> <span class="function declaration">never</span><span class="parenthesis">(</span><span class="parenthesis">)</span> <span class="operator">-&gt;</span> <span class="builtin_type">!</span> <span class="brace">{</span>
+<span class="keyword">fn</span> <span class="function declaration">never</span><span class="parentheses">(</span><span class="parentheses">)</span> <span class="operator">-&gt;</span> <span class="builtin_type">!</span> <span class="brace">{</span>
     <span class="keyword control">loop</span> <span class="brace">{</span><span class="brace">}</span>
 <span class="brace">}</span>
 
-<span class="keyword">fn</span> <span class="function declaration">const_param</span><span class="angle">&lt;</span><span class="keyword">const</span> <span class="const_param declaration">FOO</span><span class="colon">:</span> <span class="builtin_type">usize</span><span class="angle">&gt;</span><span class="parenthesis">(</span><span class="parenthesis">)</span> <span class="operator">-&gt;</span> <span class="builtin_type">usize</span> <span class="brace">{</span>
+<span class="keyword">fn</span> <span class="function declaration">const_param</span><span class="angle">&lt;</span><span class="keyword">const</span> <span class="const_param declaration">FOO</span><span class="colon">:</span> <span class="builtin_type">usize</span><span class="angle">&gt;</span><span class="parentheses">(</span><span class="parentheses">)</span> <span class="operator">-&gt;</span> <span class="builtin_type">usize</span> <span class="brace">{</span>
     <span class="const_param">FOO</span>
 <span class="brace">}</span>
 
 <span class="keyword">use</span> <span class="module">ops</span><span class="operator">::</span><span class="trait">Fn</span><span class="semicolon">;</span>
-<span class="keyword">fn</span> <span class="function declaration">baz</span><span class="angle">&lt;</span><span class="type_param declaration">F</span><span class="colon">:</span> <span class="trait">Fn</span><span class="parenthesis">(</span><span class="parenthesis">)</span> <span class="operator">-&gt;</span> <span class="parenthesis">(</span><span class="parenthesis">)</span><span class="angle">&gt;</span><span class="parenthesis">(</span><span class="value_param declaration callable">f</span><span class="colon">:</span> <span class="type_param">F</span><span class="parenthesis">)</span> <span class="brace">{</span>
-    <span class="value_param callable">f</span><span class="parenthesis">(</span><span class="parenthesis">)</span>
+<span class="keyword">fn</span> <span class="function declaration">baz</span><span class="angle">&lt;</span><span class="type_param declaration">F</span><span class="colon">:</span> <span class="trait">Fn</span><span class="parentheses">(</span><span class="parentheses">)</span> <span class="operator">-&gt;</span> <span class="parentheses">(</span><span class="parentheses">)</span><span class="angle">&gt;</span><span class="parentheses">(</span><span class="value_param declaration callable">f</span><span class="colon">:</span> <span class="type_param">F</span><span class="parentheses">)</span> <span class="brace">{</span>
+    <span class="value_param callable">f</span><span class="parentheses">(</span><span class="parentheses">)</span>
 <span class="brace">}</span>
 
-<span class="keyword">fn</span> <span class="function declaration">foobar</span><span class="parenthesis">(</span><span class="parenthesis">)</span> <span class="operator">-&gt;</span> <span class="keyword">impl</span> <span class="macro">Copy</span> <span class="brace">{</span><span class="brace">}</span>
+<span class="keyword">fn</span> <span class="function declaration">foobar</span><span class="parentheses">(</span><span class="parentheses">)</span> <span class="operator">-&gt;</span> <span class="keyword">impl</span> <span class="macro">Copy</span> <span class="brace">{</span><span class="brace">}</span>
 
-<span class="keyword">fn</span> <span class="function declaration">foo</span><span class="parenthesis">(</span><span class="parenthesis">)</span> <span class="brace">{</span>
-    <span class="keyword">let</span> <span class="variable declaration">bar</span> <span class="operator">=</span> <span class="function">foobar</span><span class="parenthesis">(</span><span class="parenthesis">)</span><span class="semicolon">;</span>
+<span class="keyword">fn</span> <span class="function declaration">foo</span><span class="parentheses">(</span><span class="parentheses">)</span> <span class="brace">{</span>
+    <span class="keyword">let</span> <span class="variable declaration">bar</span> <span class="operator">=</span> <span class="function">foobar</span><span class="parentheses">(</span><span class="parentheses">)</span><span class="semicolon">;</span>
 <span class="brace">}</span>
 
 <span class="keyword">macro_rules</span><span class="punctuation">!</span> <span class="macro declaration">def_fn</span> <span class="brace">{</span>
-    <span class="parenthesis">(</span><span class="punctuation">$</span><span class="parenthesis">(</span><span class="punctuation">$</span>tt<span class="colon">:</span>tt<span class="parenthesis">)</span><span class="punctuation">*</span><span class="parenthesis">)</span> <span class="operator">=</span><span class="angle">&gt;</span> <span class="brace">{</span><span class="punctuation">$</span><span class="parenthesis">(</span><span class="punctuation">$</span>tt<span class="parenthesis">)</span><span class="punctuation">*</span><span class="brace">}</span>
+    <span class="parentheses">(</span><span class="punctuation">$</span><span class="parentheses">(</span><span class="punctuation">$</span>tt<span class="colon">:</span>tt<span class="parentheses">)</span><span class="punctuation">*</span><span class="parentheses">)</span> <span class="operator">=</span><span class="angle">&gt;</span> <span class="brace">{</span><span class="punctuation">$</span><span class="parentheses">(</span><span class="punctuation">$</span>tt<span class="parentheses">)</span><span class="punctuation">*</span><span class="brace">}</span>
 <span class="brace">}</span>
 
 <span class="macro">def_fn!</span> <span class="brace">{</span>
-    <span class="keyword">fn</span> <span class="function declaration">bar</span><span class="parenthesis">(</span><span class="parenthesis">)</span> <span class="operator">-</span><span class="operator">&gt;</span> <span class="builtin_type">u32</span> <span class="brace">{</span>
+    <span class="keyword">fn</span> <span class="function declaration">bar</span><span class="parentheses">(</span><span class="parentheses">)</span> <span class="operator">-</span><span class="operator">&gt;</span> <span class="builtin_type">u32</span> <span class="brace">{</span>
         <span class="numeric_literal">100</span>
     <span class="brace">}</span>
 <span class="brace">}</span>
 
 <span class="keyword">macro_rules</span><span class="punctuation">!</span> <span class="macro declaration">noop</span> <span class="brace">{</span>
-    <span class="parenthesis">(</span><span class="punctuation">$</span>expr<span class="colon">:</span>expr<span class="parenthesis">)</span> <span class="operator">=</span><span class="angle">&gt;</span> <span class="brace">{</span>
+    <span class="parentheses">(</span><span class="punctuation">$</span>expr<span class="colon">:</span>expr<span class="parentheses">)</span> <span class="operator">=</span><span class="angle">&gt;</span> <span class="brace">{</span>
         <span class="punctuation">$</span>expr
     <span class="brace">}</span>
 <span class="brace">}</span>
 
 <span class="keyword">macro_rules</span><span class="punctuation">!</span> <span class="macro declaration">keyword_frag</span> <span class="brace">{</span>
-    <span class="parenthesis">(</span><span class="punctuation">$</span>type<span class="colon">:</span>ty<span class="parenthesis">)</span> <span class="operator">=</span><span class="angle">&gt;</span> <span class="parenthesis">(</span><span class="punctuation">$</span>type<span class="parenthesis">)</span>
+    <span class="parentheses">(</span><span class="punctuation">$</span>type<span class="colon">:</span>ty<span class="parentheses">)</span> <span class="operator">=</span><span class="angle">&gt;</span> <span class="parentheses">(</span><span class="punctuation">$</span>type<span class="parentheses">)</span>
 <span class="brace">}</span>
 
 <span class="comment">// comment</span>
-<span class="keyword">fn</span> <span class="function declaration">main</span><span class="parenthesis">(</span><span class="parenthesis">)</span> <span class="brace">{</span>
-    <span class="macro">println!</span><span class="parenthesis">(</span><span class="string_literal">"Hello, {}!"</span><span class="comma">,</span> <span class="numeric_literal">92</span><span class="parenthesis">)</span><span class="semicolon">;</span>
+<span class="keyword">fn</span> <span class="function declaration">main</span><span class="parentheses">(</span><span class="parentheses">)</span> <span class="brace">{</span>
+    <span class="macro">println!</span><span class="parentheses">(</span><span class="string_literal">"Hello, {}!"</span><span class="comma">,</span> <span class="numeric_literal">92</span><span class="parentheses">)</span><span class="semicolon">;</span>
 
-    <span class="keyword">let</span> <span class="keyword">mut</span> <span class="variable declaration mutable">vec</span> <span class="operator">=</span> <span class="unresolved_reference">Vec</span><span class="operator">::</span><span class="unresolved_reference">new</span><span class="parenthesis">(</span><span class="parenthesis">)</span><span class="semicolon">;</span>
+    <span class="keyword">let</span> <span class="keyword">mut</span> <span class="variable declaration mutable">vec</span> <span class="operator">=</span> <span class="unresolved_reference">Vec</span><span class="operator">::</span><span class="unresolved_reference">new</span><span class="parentheses">(</span><span class="parentheses">)</span><span class="semicolon">;</span>
     <span class="keyword control">if</span> <span class="bool_literal">true</span> <span class="brace">{</span>
         <span class="keyword">let</span> <span class="variable declaration">x</span> <span class="operator">=</span> <span class="numeric_literal">92</span><span class="semicolon">;</span>
-        <span class="variable mutable">vec</span><span class="operator">.</span><span class="unresolved_reference">push</span><span class="parenthesis">(</span><span class="struct">Foo</span> <span class="brace">{</span> <span class="field">x</span><span class="comma">,</span> <span class="field">y</span><span class="colon">:</span> <span class="numeric_literal">1</span> <span class="brace">}</span><span class="parenthesis">)</span><span class="semicolon">;</span>
+        <span class="variable mutable">vec</span><span class="operator">.</span><span class="unresolved_reference">push</span><span class="parentheses">(</span><span class="struct">Foo</span> <span class="brace">{</span> <span class="field">x</span><span class="comma">,</span> <span class="field">y</span><span class="colon">:</span> <span class="numeric_literal">1</span> <span class="brace">}</span><span class="parentheses">)</span><span class="semicolon">;</span>
     <span class="brace">}</span>
     <span class="keyword unsafe">unsafe</span> <span class="brace">{</span>
-        <span class="variable mutable">vec</span><span class="operator">.</span><span class="unresolved_reference">set_len</span><span class="parenthesis">(</span><span class="numeric_literal">0</span><span class="parenthesis">)</span><span class="semicolon">;</span>
+        <span class="variable mutable">vec</span><span class="operator">.</span><span class="unresolved_reference">set_len</span><span class="parentheses">(</span><span class="numeric_literal">0</span><span class="parentheses">)</span><span class="semicolon">;</span>
         <span class="static mutable unsafe">STATIC_MUT</span> <span class="operator">=</span> <span class="numeric_literal">1</span><span class="semicolon">;</span>
     <span class="brace">}</span>
 
@@ -171,7 +171,7 @@ pre                 { color: #DCDCCC; background: #3F3F3F; font-size: 22px; padd
         <span class="comment">// Do nothing</span>
     <span class="brace">}</span>
 
-    <span class="macro">noop!</span><span class="parenthesis">(</span><span class="macro">noop</span><span class="macro">!</span><span class="parenthesis">(</span><span class="numeric_literal">1</span><span class="parenthesis">)</span><span class="parenthesis">)</span><span class="semicolon">;</span>
+    <span class="macro">noop!</span><span class="parentheses">(</span><span class="macro">noop</span><span class="macro">!</span><span class="parentheses">(</span><span class="numeric_literal">1</span><span class="parentheses">)</span><span class="parentheses">)</span><span class="semicolon">;</span>
 
     <span class="keyword">let</span> <span class="keyword">mut</span> <span class="variable declaration mutable">x</span> <span class="operator">=</span> <span class="numeric_literal">42</span><span class="semicolon">;</span>
     <span class="keyword">let</span> <span class="variable declaration mutable">y</span> <span class="operator">=</span> <span class="operator">&</span><span class="keyword">mut</span> <span class="variable mutable">x</span><span class="semicolon">;</span>
@@ -183,14 +183,14 @@ pre                 { color: #DCDCCC; background: #3F3F3F; font-size: 22px; padd
 
     <span class="keyword">let</span> <span class="keyword">mut</span> <span class="variable declaration mutable">foo</span> <span class="operator">=</span> <span class="struct">Foo</span> <span class="brace">{</span> <span class="field">x</span><span class="comma">,</span> <span class="field">y</span><span class="colon">:</span> <span class="variable mutable">x</span> <span class="brace">}</span><span class="semicolon">;</span>
     <span class="keyword">let</span> <span class="variable declaration">foo2</span> <span class="operator">=</span> <span class="struct">Foo</span> <span class="brace">{</span> <span class="field">x</span><span class="comma">,</span> <span class="field">y</span><span class="colon">:</span> <span class="variable mutable">x</span> <span class="brace">}</span><span class="semicolon">;</span>
-    <span class="variable mutable">foo</span><span class="operator">.</span><span class="function associated">quop</span><span class="parenthesis">(</span><span class="parenthesis">)</span><span class="semicolon">;</span>
-    <span class="variable mutable">foo</span><span class="operator">.</span><span class="function mutable associated">qux</span><span class="parenthesis">(</span><span class="parenthesis">)</span><span class="semicolon">;</span>
-    <span class="variable mutable">foo</span><span class="operator">.</span><span class="function consuming associated">baz</span><span class="parenthesis">(</span><span class="variable consuming">foo2</span><span class="parenthesis">)</span><span class="semicolon">;</span>
+    <span class="variable mutable">foo</span><span class="operator">.</span><span class="function associated">quop</span><span class="parentheses">(</span><span class="parentheses">)</span><span class="semicolon">;</span>
+    <span class="variable mutable">foo</span><span class="operator">.</span><span class="function mutable associated">qux</span><span class="parentheses">(</span><span class="parentheses">)</span><span class="semicolon">;</span>
+    <span class="variable mutable">foo</span><span class="operator">.</span><span class="function consuming associated">baz</span><span class="parentheses">(</span><span class="variable consuming">foo2</span><span class="parentheses">)</span><span class="semicolon">;</span>
 
     <span class="keyword">let</span> <span class="keyword">mut</span> <span class="variable declaration mutable">copy</span> <span class="operator">=</span> <span class="struct">FooCopy</span> <span class="brace">{</span> <span class="field">x</span> <span class="brace">}</span><span class="semicolon">;</span>
-    <span class="variable mutable">copy</span><span class="operator">.</span><span class="function associated">quop</span><span class="parenthesis">(</span><span class="parenthesis">)</span><span class="semicolon">;</span>
-    <span class="variable mutable">copy</span><span class="operator">.</span><span class="function mutable associated">qux</span><span class="parenthesis">(</span><span class="parenthesis">)</span><span class="semicolon">;</span>
-    <span class="variable mutable">copy</span><span class="operator">.</span><span class="function associated">baz</span><span class="parenthesis">(</span><span class="variable mutable">copy</span><span class="parenthesis">)</span><span class="semicolon">;</span>
+    <span class="variable mutable">copy</span><span class="operator">.</span><span class="function associated">quop</span><span class="parentheses">(</span><span class="parentheses">)</span><span class="semicolon">;</span>
+    <span class="variable mutable">copy</span><span class="operator">.</span><span class="function mutable associated">qux</span><span class="parentheses">(</span><span class="parentheses">)</span><span class="semicolon">;</span>
+    <span class="variable mutable">copy</span><span class="operator">.</span><span class="function associated">baz</span><span class="parentheses">(</span><span class="variable mutable">copy</span><span class="parentheses">)</span><span class="semicolon">;</span>
 
     <span class="keyword">let</span> <span class="variable declaration callable">a</span> <span class="operator">=</span> <span class="punctuation">|</span><span class="value_param declaration">x</span><span class="punctuation">|</span> <span class="value_param">x</span><span class="semicolon">;</span>
     <span class="keyword">let</span> <span class="variable declaration callable">bar</span> <span class="operator">=</span> <span class="struct">Foo</span><span class="operator">::</span><span class="function associated">baz</span><span class="semicolon">;</span>
@@ -207,15 +207,15 @@ pre                 { color: #DCDCCC; background: #3F3F3F; font-size: 22px; padd
 <span class="brace">}</span>
 
 <span class="keyword">enum</span> <span class="enum declaration">Option</span><span class="angle">&lt;</span><span class="type_param declaration">T</span><span class="angle">&gt;</span> <span class="brace">{</span>
-    <span class="enum_variant declaration">Some</span><span class="parenthesis">(</span><span class="type_param">T</span><span class="parenthesis">)</span><span class="comma">,</span>
+    <span class="enum_variant declaration">Some</span><span class="parentheses">(</span><span class="type_param">T</span><span class="parentheses">)</span><span class="comma">,</span>
     <span class="enum_variant declaration">None</span><span class="comma">,</span>
 <span class="brace">}</span>
 <span class="keyword">use</span> <span class="enum">Option</span><span class="operator">::</span><span class="punctuation">*</span><span class="semicolon">;</span>
 
 <span class="keyword">impl</span><span class="angle">&lt;</span><span class="type_param declaration">T</span><span class="angle">&gt;</span> <span class="enum">Option</span><span class="angle">&lt;</span><span class="type_param">T</span><span class="angle">&gt;</span> <span class="brace">{</span>
-    <span class="keyword">fn</span> <span class="function declaration associated">and</span><span class="angle">&lt;</span><span class="type_param declaration">U</span><span class="angle">&gt;</span><span class="parenthesis">(</span><span class="self_keyword">self</span><span class="comma">,</span> <span class="value_param declaration">other</span><span class="colon">:</span> <span class="enum">Option</span><span class="angle">&lt;</span><span class="type_param">U</span><span class="angle">&gt;</span><span class="parenthesis">)</span> <span class="operator">-&gt;</span> <span class="enum">Option</span><span class="angle">&lt;</span><span class="parenthesis">(</span><span class="type_param">T</span><span class="comma">,</span> <span class="type_param">U</span><span class="parenthesis">)</span><span class="angle">&gt;</span> <span class="brace">{</span>
+    <span class="keyword">fn</span> <span class="function declaration associated">and</span><span class="angle">&lt;</span><span class="type_param declaration">U</span><span class="angle">&gt;</span><span class="parentheses">(</span><span class="self_keyword">self</span><span class="comma">,</span> <span class="value_param declaration">other</span><span class="colon">:</span> <span class="enum">Option</span><span class="angle">&lt;</span><span class="type_param">U</span><span class="angle">&gt;</span><span class="parentheses">)</span> <span class="operator">-&gt;</span> <span class="enum">Option</span><span class="angle">&lt;</span><span class="parentheses">(</span><span class="type_param">T</span><span class="comma">,</span> <span class="type_param">U</span><span class="parentheses">)</span><span class="angle">&gt;</span> <span class="brace">{</span>
         <span class="keyword control">match</span> <span class="value_param">other</span> <span class="brace">{</span>
-            <span class="enum_variant">None</span> <span class="operator">=&gt;</span> <span class="macro">unimplemented!</span><span class="parenthesis">(</span><span class="parenthesis">)</span><span class="comma">,</span>
+            <span class="enum_variant">None</span> <span class="operator">=&gt;</span> <span class="macro">unimplemented!</span><span class="parentheses">(</span><span class="parentheses">)</span><span class="comma">,</span>
             <span class="variable declaration">Nope</span> <span class="operator">=&gt;</span> <span class="variable">Nope</span><span class="comma">,</span>
         <span class="brace">}</span>
     <span class="brace">}</span>
diff --git a/crates/ide/src/syntax_highlighting/test_data/injection.html b/crates/ide/src/syntax_highlighting/test_data/injection.html
index 78dfec9518..52fabd1800 100644
--- a/crates/ide/src/syntax_highlighting/test_data/injection.html
+++ b/crates/ide/src/syntax_highlighting/test_data/injection.html
@@ -36,13 +36,13 @@ pre                 { color: #DCDCCC; background: #3F3F3F; font-size: 22px; padd
 
 .unresolved_reference { color: #FC5555; text-decoration: wavy underline; }
 </style>
-<pre><code><span class="keyword">fn</span> <span class="function declaration">f</span><span class="parenthesis">(</span><span class="value_param declaration">ra_fixture</span><span class="colon">:</span> <span class="operator">&</span><span class="builtin_type">str</span><span class="parenthesis">)</span> <span class="brace">{</span><span class="brace">}</span>
-<span class="keyword">fn</span> <span class="function declaration">main</span><span class="parenthesis">(</span><span class="parenthesis">)</span> <span class="brace">{</span>
-    <span class="function">f</span><span class="parenthesis">(</span><span class="string_literal">r"</span>
-<span class="keyword">fn</span> <span class="function declaration">foo</span><span class="parenthesis">(</span><span class="parenthesis">)</span> <span class="brace">{</span>
-    <span class="function">foo</span><span class="parenthesis">(</span><span class="keyword">$0</span><span class="brace">{</span>
+<pre><code><span class="keyword">fn</span> <span class="function declaration">f</span><span class="parentheses">(</span><span class="value_param declaration">ra_fixture</span><span class="colon">:</span> <span class="operator">&</span><span class="builtin_type">str</span><span class="parentheses">)</span> <span class="brace">{</span><span class="brace">}</span>
+<span class="keyword">fn</span> <span class="function declaration">main</span><span class="parentheses">(</span><span class="parentheses">)</span> <span class="brace">{</span>
+    <span class="function">f</span><span class="parentheses">(</span><span class="string_literal">r"</span>
+<span class="keyword">fn</span> <span class="function declaration">foo</span><span class="parentheses">(</span><span class="parentheses">)</span> <span class="brace">{</span>
+    <span class="function">foo</span><span class="parentheses">(</span><span class="keyword">$0</span><span class="brace">{</span>
         <span class="numeric_literal">92</span>
-    <span class="brace">}</span><span class="keyword">$0</span><span class="parenthesis">)</span>
-<span class="brace">}</span><span class="string_literal">"</span><span class="parenthesis">)</span><span class="semicolon">;</span>
+    <span class="brace">}</span><span class="keyword">$0</span><span class="parentheses">)</span>
+<span class="brace">}</span><span class="string_literal">"</span><span class="parentheses">)</span><span class="semicolon">;</span>
 <span class="brace">}</span>
     </code></pre>
\ No newline at end of file
diff --git a/crates/ide/src/syntax_highlighting/test_data/rainbow_highlighting.html b/crates/ide/src/syntax_highlighting/test_data/rainbow_highlighting.html
index e64f2e5e93..196c898f78 100644
--- a/crates/ide/src/syntax_highlighting/test_data/rainbow_highlighting.html
+++ b/crates/ide/src/syntax_highlighting/test_data/rainbow_highlighting.html
@@ -36,15 +36,15 @@ pre                 { color: #DCDCCC; background: #3F3F3F; font-size: 22px; padd
 
 .unresolved_reference { color: #FC5555; text-decoration: wavy underline; }
 </style>
-<pre><code><span class="keyword">fn</span> <span class="function declaration">main</span><span class="parenthesis">(</span><span class="parenthesis">)</span> <span class="brace">{</span>
+<pre><code><span class="keyword">fn</span> <span class="function declaration">main</span><span class="parentheses">(</span><span class="parentheses">)</span> <span class="brace">{</span>
     <span class="keyword">let</span> <span class="variable declaration" data-binding-hash="8121853618659664005" style="color: hsl(273,88%,88%);">hello</span> <span class="operator">=</span> <span class="string_literal">"hello"</span><span class="semicolon">;</span>
-    <span class="keyword">let</span> <span class="variable declaration" data-binding-hash="2705725358298919760" style="color: hsl(76,47%,83%);">x</span> <span class="operator">=</span> <span class="variable" data-binding-hash="8121853618659664005" style="color: hsl(273,88%,88%);">hello</span><span class="operator">.</span><span class="unresolved_reference">to_string</span><span class="parenthesis">(</span><span class="parenthesis">)</span><span class="semicolon">;</span>
-    <span class="keyword">let</span> <span class="variable declaration" data-binding-hash="3365759661443752373" style="color: hsl(15,86%,51%);">y</span> <span class="operator">=</span> <span class="variable" data-binding-hash="8121853618659664005" style="color: hsl(273,88%,88%);">hello</span><span class="operator">.</span><span class="unresolved_reference">to_string</span><span class="parenthesis">(</span><span class="parenthesis">)</span><span class="semicolon">;</span>
+    <span class="keyword">let</span> <span class="variable declaration" data-binding-hash="2705725358298919760" style="color: hsl(76,47%,83%);">x</span> <span class="operator">=</span> <span class="variable" data-binding-hash="8121853618659664005" style="color: hsl(273,88%,88%);">hello</span><span class="operator">.</span><span class="unresolved_reference">to_string</span><span class="parentheses">(</span><span class="parentheses">)</span><span class="semicolon">;</span>
+    <span class="keyword">let</span> <span class="variable declaration" data-binding-hash="3365759661443752373" style="color: hsl(15,86%,51%);">y</span> <span class="operator">=</span> <span class="variable" data-binding-hash="8121853618659664005" style="color: hsl(273,88%,88%);">hello</span><span class="operator">.</span><span class="unresolved_reference">to_string</span><span class="parentheses">(</span><span class="parentheses">)</span><span class="semicolon">;</span>
 
     <span class="keyword">let</span> <span class="variable declaration" data-binding-hash="794745962933817518" style="color: hsl(127,71%,87%);">x</span> <span class="operator">=</span> <span class="string_literal">"other color please!"</span><span class="semicolon">;</span>
-    <span class="keyword">let</span> <span class="variable declaration" data-binding-hash="6717528807933952652" style="color: hsl(90,74%,79%);">y</span> <span class="operator">=</span> <span class="variable" data-binding-hash="794745962933817518" style="color: hsl(127,71%,87%);">x</span><span class="operator">.</span><span class="unresolved_reference">to_string</span><span class="parenthesis">(</span><span class="parenthesis">)</span><span class="semicolon">;</span>
+    <span class="keyword">let</span> <span class="variable declaration" data-binding-hash="6717528807933952652" style="color: hsl(90,74%,79%);">y</span> <span class="operator">=</span> <span class="variable" data-binding-hash="794745962933817518" style="color: hsl(127,71%,87%);">x</span><span class="operator">.</span><span class="unresolved_reference">to_string</span><span class="parentheses">(</span><span class="parentheses">)</span><span class="semicolon">;</span>
 <span class="brace">}</span>
 
-<span class="keyword">fn</span> <span class="function declaration">bar</span><span class="parenthesis">(</span><span class="parenthesis">)</span> <span class="brace">{</span>
+<span class="keyword">fn</span> <span class="function declaration">bar</span><span class="parentheses">(</span><span class="parentheses">)</span> <span class="brace">{</span>
     <span class="keyword">let</span> <span class="keyword">mut</span> <span class="variable declaration mutable" data-binding-hash="8121853618659664005" style="color: hsl(273,88%,88%);">hello</span> <span class="operator">=</span> <span class="string_literal">"hello"</span><span class="semicolon">;</span>
 <span class="brace">}</span></code></pre>
\ No newline at end of file