Add a semantic token type for char literals

The LSP spec doesn't recognise character literals, so
had to extend the suported types to our own custom type

2 files changed, 3 insertions, 1 deletions

diff --git a/crates/rust-analyzer/src/semantic_tokens.rs b/crates/rust-analyzer/src/semantic_tokens.rs
index 7ce9a4ab6..be0bea00b 100644
--- a/crates/rust-analyzer/src/semantic_tokens.rs
+++ b/crates/rust-analyzer/src/semantic_tokens.rs
@@ -44,6 +44,7 @@ define_semantic_token_types![
     (BRACE, "brace"),
     (BRACKET, "bracket"),
     (BUILTIN_TYPE, "builtinType"),
+    (CHAR_LITERAL, "characterLiteral"),
     (COMMA, "comma"),
     (COLON, "colon"),
     (DOT, "dot"),
diff --git a/crates/rust-analyzer/src/to_proto.rs b/crates/rust-analyzer/src/to_proto.rs
index 96f915f1c..5236932e8 100644
--- a/crates/rust-analyzer/src/to_proto.rs
+++ b/crates/rust-analyzer/src/to_proto.rs
@@ -426,7 +426,8 @@ fn semantic_token_type_and_modifiers(
         HlTag::None => semantic_tokens::GENERIC,
         HlTag::ByteLiteral | HlTag::NumericLiteral => lsp_types::SemanticTokenType::NUMBER,
         HlTag::BoolLiteral => semantic_tokens::BOOLEAN,
-        HlTag::CharLiteral | HlTag::StringLiteral => lsp_types::SemanticTokenType::STRING,
+        HlTag::StringLiteral => lsp_types::SemanticTokenType::STRING,
+        HlTag::CharLiteral => semantic_tokens::CHAR_LITERAL,
         HlTag::Comment => lsp_types::SemanticTokenType::COMMENT,
         HlTag::Attribute => semantic_tokens::ATTRIBUTE,
         HlTag::Keyword => lsp_types::SemanticTokenType::KEYWORD,