ra_syntax: add backticks around tokens specimen

Author: Veetaha

crates/ra_syntax/src/syntax_error.rs

@@ -71,6 +71,10 @@ impl SyntaxError {
 
         self
     }
+
+    pub fn debug_dump(&self, acc: &mut impl fmt::Write) {
+        writeln!(acc, "error {:?}: {}", self.location(), self.kind()).unwrap();
+    }
 }
 
 impl fmt::Display for SyntaxError {
@@ -122,37 +126,44 @@ impl fmt::Display for SyntaxErrorKind {
 
 impl fmt::Display for TokenizeError {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        #[rustfmt::skip]
         let msg = match self {
-            TokenizeError::EmptyInt => "Missing digits after integer base prefix",
-            TokenizeError::EmptyExponent => "Missing digits after the exponent symbol",
+            TokenizeError::EmptyInt => {
+                "Missing digits after the integer base prefix"
+            }
+            TokenizeError::EmptyExponent => {
+                "Missing digits after the exponent symbol"
+            }
             TokenizeError::UnterminatedBlockComment => {
-                "Missing trailing */ symbols to terminate the block comment"
+                "Missing trailing `*/` symbols to terminate the block comment"
             }
             TokenizeError::UnterminatedChar => {
-                "Missing trailing ' symbol to terminate the character literal"
+                "Missing trailing `'` symbol to terminate the character literal"
             }
             TokenizeError::UnterminatedByte => {
-                "Missing trailing ' symbol to terminate the byte literal"
+                "Missing trailing `'` symbol to terminate the byte literal"
             }
             TokenizeError::UnterminatedString => {
-                "Missing trailing \" symbol to terminate the string literal"
+                "Missing trailing `\"` symbol to terminate the string literal"
             }
             TokenizeError::UnterminatedByteString => {
-                "Missing trailing \" symbol to terminate the byte string literal"
+                "Missing trailing `\"` symbol to terminate the byte string literal"
             }
             TokenizeError::UnterminatedRawString => {
-                "Missing trailing \" with # symbols to terminate the raw string literal"
+                "Missing trailing `\"` with `#` symbols to terminate the raw string literal"
             }
             TokenizeError::UnterminatedRawByteString => {
-                "Missing trailing \" with # symbols to terminate the raw byte string literal"
+                "Missing trailing `\"` with `#` symbols to terminate the raw byte string literal"
             }
             TokenizeError::UnstartedRawString => {
-                "Missing \" symbol after # symbols to begin the raw string literal"
+                "Missing `\"` symbol after `#` symbols to begin the raw string literal"
             }
             TokenizeError::UnstartedRawByteString => {
-                "Missing \" symbol after # symbols to begin the raw byte string literal"
+                "Missing `\"` symbol after `#` symbols to begin the raw byte string literal"
+            }
+            TokenizeError::LifetimeStartsWithNumber => {
+                "Lifetime name cannot start with a number"
             }
-            TokenizeError::LifetimeStartsWithNumber => "Lifetime name cannot start with a number",
         };
         write!(f, "{}", msg)
     }