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Fix feature.

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This commit is contained in:
Stephen Chung 2023-03-15 18:31:53 +08:00
parent 41636eac55
commit 952c77d9bb
1 changed files with 13 additions and 28 deletions
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39
src/tokenizer.rs
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@ -1544,12 +1544,7 @@ fn get_next_token_inner(
// Identifiers and strings that can have non-ASCII characters // Identifiers and strings that can have non-ASCII characters
match (c, cc) { match (c, cc) {
// letter or underscore ... // letter or underscore ...
#[cfg(not(feature = "unicode-xid-ident"))] _ if is_id_first_alphabetic(c) || c == '_' => {
('a'..='z' | '_' | 'A'..='Z', ..) => {
return Some(parse_identifier_token(stream, state, pos, start_pos, c));
}
#[cfg(feature = "unicode-xid-ident")]
_ if unicode_xid::UnicodeXID::is_xid_start(c) || c == '_' => {
return Some(parse_identifier_token(stream, state, pos, start_pos, c)); return Some(parse_identifier_token(stream, state, pos, start_pos, c));
} }
// " - string literal // " - string literal
@ -1625,7 +1620,7 @@ fn get_next_token_inner(
} }
// Non-ASCII inputs are not valid here // Non-ASCII inputs are not valid here
if !c.is_ascii() || !cc.is_ascii() { if !c.is_ascii() {
return Some(( return Some((
Token::LexError(LERR::UnexpectedInput(c.to_string()).into()), Token::LexError(LERR::UnexpectedInput(c.to_string()).into()),
start_pos, start_pos,
@ -1635,7 +1630,9 @@ fn get_next_token_inner(
// Match ASCII byte values (faster?) // Match ASCII byte values (faster?)
let mut buf = [0_u8; 2]; let mut buf = [0_u8; 2];
c.encode_utf8(&mut buf[0..1]); c.encode_utf8(&mut buf[0..1]);
if cc.is_ascii() {
cc.encode_utf8(&mut buf[1..]); cc.encode_utf8(&mut buf[1..]);
}
match (buf[0], buf[1]) { match (buf[0], buf[1]) {
// \n // \n
@ -2295,35 +2292,23 @@ pub fn is_valid_function_name(name: &str) -> bool {
} }
/// Is a character valid to start an identifier? /// Is a character valid to start an identifier?
#[cfg(feature = "unicode-xid-ident")]
#[inline(always)] #[inline(always)]
#[must_use] #[must_use]
pub fn is_id_first_alphabetic(x: char) -> bool { pub fn is_id_first_alphabetic(x: char) -> bool {
unicode_xid::UnicodeXID::is_xid_start(x) #[cfg(feature = "unicode-xid-ident")]
return unicode_xid::UnicodeXID::is_xid_start(x);
#[cfg(not(feature = "unicode-xid-ident"))]
return x.is_ascii_alphabetic();
} }
/// Is a character valid for an identifier? /// Is a character valid for an identifier?
#[cfg(feature = "unicode-xid-ident")]
#[inline(always)] #[inline(always)]
#[must_use] #[must_use]
pub fn is_id_continue(x: char) -> bool { pub fn is_id_continue(x: char) -> bool {
unicode_xid::UnicodeXID::is_xid_continue(x) #[cfg(feature = "unicode-xid-ident")]
} return unicode_xid::UnicodeXID::is_xid_continue(x);
#[cfg(not(feature = "unicode-xid-ident"))]
/// Is a character valid to start an identifier? return x.is_ascii_alphanumeric() || x == '_';
#[cfg(not(feature = "unicode-xid-ident"))]
#[inline(always)]
#[must_use]
pub const fn is_id_first_alphabetic(x: char) -> bool {
x.is_ascii_alphabetic()
}
/// Is a character valid for an identifier?
#[cfg(not(feature = "unicode-xid-ident"))]
#[inline(always)]
#[must_use]
pub const fn is_id_continue(x: char) -> bool {
x.is_ascii_alphanumeric() || x == '_'
} }
/// Is a piece of syntax a reserved keyword or reserved symbol? /// Is a piece of syntax a reserved keyword or reserved symbol?