From d56e2af83a102e73637880bb1ec9275cab2b7656 Mon Sep 17 00:00:00 2001 From: Miguel Ojeda Date: Sun, 9 Oct 2022 20:41:31 +0200 Subject: [PATCH] rust: syn: remove `unicode-ident` dependency The `syn` crate depends on the `unicode-ident` crate to determine whether characters have the XID_Start or XID_Continue properties according to Unicode Standard Annex #31. However, we only need ASCII identifiers in the kernel, thus we can simplify the check and remove completely that dependency. Signed-off-by: Miguel Ojeda --- rust/syn/ident.rs | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/rust/syn/ident.rs b/rust/syn/ident.rs index 4132cac68259bc..b2137467cfbe50 100644 --- a/rust/syn/ident.rs +++ b/rust/syn/ident.rs @@ -39,11 +39,11 @@ impl From for Ident { pub(crate) fn xid_ok(symbol: &str) -> bool { let mut chars = symbol.chars(); let first = chars.next().unwrap(); - if !(first == '_' || unicode_ident::is_xid_start(first)) { + if !(first == '_' || first.is_ascii_alphabetic()) { return false; } for ch in chars { - if !unicode_ident::is_xid_continue(ch) { + if !(ch == '_' || ch.is_ascii_alphanumeric()) { return false; } }