Kill RAW_ literals

Syntactically, they are indistinguishable from non-raw versions, so it
doesn't make sense to separate then *at the syntax* level.

5 files changed, 12 insertions, 18 deletions

diff --git a/crates/ide/src/extend_selection.rs b/crates/ide/src/extend_selection.rs
index 3ee0af8ad..0971f7701 100644
--- a/crates/ide/src/extend_selection.rs
+++ b/crates/ide/src/extend_selection.rs
@@ -35,7 +35,7 @@ fn try_extend_selection(
 ) -> Option<TextRange> {
     let range = frange.range;
 
-    let string_kinds = [COMMENT, STRING, RAW_STRING, BYTE_STRING, RAW_BYTE_STRING];
+    let string_kinds = [COMMENT, STRING, BYTE_STRING];
     let list_kinds = [
         RECORD_PAT_FIELD_LIST,
         MATCH_ARM_LIST,
diff --git a/crates/ide/src/syntax_highlighting.rs b/crates/ide/src/syntax_highlighting.rs
index efcc8ecfe..05bafe9c8 100644
--- a/crates/ide/src/syntax_highlighting.rs
+++ b/crates/ide/src/syntax_highlighting.rs
@@ -179,10 +179,12 @@ pub(crate) fn highlight(
             element.clone()
         };
 
-        if let Some(token) = element.as_token().cloned().and_then(ast::RawString::cast) {
-            let expanded = element_to_highlight.as_token().unwrap().clone();
-            if injection::highlight_injection(&mut stack, &sema, token, expanded).is_some() {
-                continue;
+        if let Some(token) = element.as_token().cloned().and_then(ast::String::cast) {
+            if token.is_raw() {
+                let expanded = element_to_highlight.as_token().unwrap().clone();
+                if injection::highlight_injection(&mut stack, &sema, token, expanded).is_some() {
+                    continue;
+                }
             }
         }
 
@@ -214,10 +216,6 @@ pub(crate) fn highlight(
                     }
                     stack.pop_and_inject(None);
                 }
-            } else if let Some(string) =
-                element_to_highlight.as_token().cloned().and_then(ast::RawString::cast)
-            {
-                format_string_highlighter.highlight_format_string(&mut stack, &string, range);
             }
         }
     }
@@ -532,7 +530,7 @@ fn highlight_element(
                 None => h.into(),
             }
         }
-        STRING | RAW_STRING | RAW_BYTE_STRING | BYTE_STRING => HighlightTag::StringLiteral.into(),
+        STRING | BYTE_STRING => HighlightTag::StringLiteral.into(),
         ATTR => HighlightTag::Attribute.into(),
         INT_NUMBER | FLOAT_NUMBER => HighlightTag::NumericLiteral.into(),
         BYTE => HighlightTag::ByteLiteral.into(),
diff --git a/crates/ide/src/syntax_highlighting/format.rs b/crates/ide/src/syntax_highlighting/format.rs
index 71bde24f0..42f27df5d 100644
--- a/crates/ide/src/syntax_highlighting/format.rs
+++ b/crates/ide/src/syntax_highlighting/format.rs
@@ -29,9 +29,7 @@ impl FormatStringHighlighter {
                         .children_with_tokens()
                         .filter(|t| t.kind() != SyntaxKind::WHITESPACE)
                         .nth(1)
-                        .filter(|e| {
-                            ast::String::can_cast(e.kind()) || ast::RawString::can_cast(e.kind())
-                        })
+                        .filter(|e| ast::String::can_cast(e.kind()))
                 }
                 _ => {}
             }
diff --git a/crates/ide/src/syntax_highlighting/injection.rs b/crates/ide/src/syntax_highlighting/injection.rs
index 59a74bc02..79f6b5359 100644
--- a/crates/ide/src/syntax_highlighting/injection.rs
+++ b/crates/ide/src/syntax_highlighting/injection.rs
@@ -15,7 +15,7 @@ use super::HighlightedRangeStack;
 pub(super) fn highlight_injection(
     acc: &mut HighlightedRangeStack,
     sema: &Semantics<RootDatabase>,
-    literal: ast::RawString,
+    literal: ast::String,
     expanded: SyntaxToken,
 ) -> Option<()> {
     let active_parameter = ActiveParameter::at_token(&sema, expanded)?;
diff --git a/crates/ide/src/syntax_tree.rs b/crates/ide/src/syntax_tree.rs
index 7941610d6..6dd05c05d 100644
--- a/crates/ide/src/syntax_tree.rs
+++ b/crates/ide/src/syntax_tree.rs
@@ -1,9 +1,7 @@
 use ide_db::base_db::{FileId, SourceDatabase};
 use ide_db::RootDatabase;
 use syntax::{
-    algo, AstNode, NodeOrToken, SourceFile,
-    SyntaxKind::{RAW_STRING, STRING},
-    SyntaxToken, TextRange, TextSize,
+    algo, AstNode, NodeOrToken, SourceFile, SyntaxKind::STRING, SyntaxToken, TextRange, TextSize,
 };
 
 // Feature: Show Syntax Tree
@@ -46,7 +44,7 @@ fn syntax_tree_for_string(token: &SyntaxToken, text_range: TextRange) -> Option<
     // we'll attempt parsing it as rust syntax
     // to provide the syntax tree of the contents of the string
     match token.kind() {
-        STRING | RAW_STRING => syntax_tree_for_token(token, text_range),
+        STRING => syntax_tree_for_token(token, text_range),
         _ => None,
     }
 }