Reduce max hash in raw strings from u16 to u8

1 files changed, 7 insertions, 7 deletions

diff --git a/compiler/rustc_lexer/src/lib.rs b/compiler/rustc_lexer/src/lib.rs
index 5b8300ab530..a41e0374f41 100644
--- a/compiler/rustc_lexer/src/lib.rs
+++ b/compiler/rustc_lexer/src/lib.rs
@@ -161,15 +161,15 @@ pub enum LiteralKind {
     /// "b"abc"", "b"abc"
     ByteStr { terminated: bool },
     /// "r"abc"", "r#"abc"#", "r####"ab"###"c"####", "r#"a"
-    RawStr { n_hashes: u16, err: Option<RawStrError> },
+    RawStr { n_hashes: u8, err: Option<RawStrError> },
     /// "br"abc"", "br#"abc"#", "br####"ab"###"c"####", "br#"a"
-    RawByteStr { n_hashes: u16, err: Option<RawStrError> },
+    RawByteStr { n_hashes: u8, err: Option<RawStrError> },
 }
 
 /// Error produced validating a raw string. Represents cases like:
 /// - `r##~"abcde"##`: `InvalidStarter`
 /// - `r###"abcde"##`: `NoTerminator { expected: 3, found: 2, possible_terminator_offset: Some(11)`
-/// - Too many `#`s (>65535): `TooManyDelimiters`
+/// - Too many `#`s (>255): `TooManyDelimiters`
 // perf note: It doesn't matter that this makes `Token` 36 bytes bigger. See #77629
 #[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord)]
 pub enum RawStrError {
@@ -178,7 +178,7 @@ pub enum RawStrError {
     /// The string was never terminated. `possible_terminator_offset` is the number of characters after `r` or `br` where they
     /// may have intended to terminate it.
     NoTerminator { expected: usize, found: usize, possible_terminator_offset: Option<usize> },
-    /// More than 65535 `#`s exist.
+    /// More than 255 `#`s exist.
     TooManyDelimiters { found: usize },
 }
 
@@ -698,12 +698,12 @@ impl Cursor<'_> {
     }
 
     /// Eats the double-quoted string and returns `n_hashes` and an error if encountered.
-    fn raw_double_quoted_string(&mut self, prefix_len: usize) -> (u16, Option<RawStrError>) {
+    fn raw_double_quoted_string(&mut self, prefix_len: usize) -> (u8, Option<RawStrError>) {
         // Wrap the actual function to handle the error with too many hashes.
         // This way, it eats the whole raw string.
         let (n_hashes, err) = self.raw_string_unvalidated(prefix_len);
-        // Only up to 65535 `#`s are allowed in raw strings
-        match u16::try_from(n_hashes) {
+        // Only up to 255 `#`s are allowed in raw strings
+        match u8::try_from(n_hashes) {
             Ok(num) => (num, err),
             // We lie about the number of hashes here :P
             Err(_) => (0, Some(RawStrError::TooManyDelimiters { found: n_hashes })),