Importing rustc-1.56.0
Change-Id: I98941481270706fa55f8fb2cb91686ae3bd30f38
diff --git a/compiler/rustc_lexer/src/lib.rs b/compiler/rustc_lexer/src/lib.rs
index 4cb2a6c..b64a891c 100644
--- a/compiler/rustc_lexer/src/lib.rs
+++ b/compiler/rustc_lexer/src/lib.rs
@@ -273,24 +273,14 @@
/// a formal definition of valid identifier name.
pub fn is_id_start(c: char) -> bool {
// This is XID_Start OR '_' (which formally is not a XID_Start).
- // We also add fast-path for ascii idents
- ('a'..='z').contains(&c)
- || ('A'..='Z').contains(&c)
- || c == '_'
- || (c > '\x7f' && unicode_xid::UnicodeXID::is_xid_start(c))
+ c == '_' || unicode_xid::UnicodeXID::is_xid_start(c)
}
/// True if `c` is valid as a non-first character of an identifier.
/// See [Rust language reference](https://doc.rust-lang.org/reference/identifiers.html) for
/// a formal definition of valid identifier name.
pub fn is_id_continue(c: char) -> bool {
- // This is exactly XID_Continue.
- // We also add fast-path for ascii idents
- ('a'..='z').contains(&c)
- || ('A'..='Z').contains(&c)
- || ('0'..='9').contains(&c)
- || c == '_'
- || (c > '\x7f' && unicode_xid::UnicodeXID::is_xid_continue(c))
+ unicode_xid::UnicodeXID::is_xid_continue(c)
}
/// The passed string is lexically an identifier.
@@ -499,7 +489,7 @@
// Start is already eaten, eat the rest of identifier.
self.eat_while(is_id_continue);
// Known prefixes must have been handled earlier. So if
- // we see a prefix here, it is definitely a unknown prefix.
+ // we see a prefix here, it is definitely an unknown prefix.
match self.first() {
'#' | '"' | '\'' => UnknownPrefix,
_ => Ident,
