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Revert "Don't recover lifetimes/labels containing emojis as character literals"

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Reverts PR #108031
Fixes (doesnt close until beta backported) #109746

This reverts commit e3f9db5fc3.
This reverts commit 98b82aedba.
This reverts commit 380fa26413.
This commit is contained in:
Michael Goulet 2023-04-10 06:52:18 +00:00
parent 3c2e2dd5c5
commit a047064d6b
8 changed files with 17 additions and 178 deletions
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9
compiler/rustc_parse/src/lexer/mod.rs
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@ -223,21 +223,16 @@ impl<'a> StringReader<'a> {
};
token::Literal(token::Lit { kind, symbol, suffix })
}
rustc_lexer::TokenKind::Lifetime { starts_with_number, contains_emoji } => {
rustc_lexer::TokenKind::Lifetime { starts_with_number } => {
// Include the leading `'` in the real identifier, for macro
// expansion purposes. See #12512 for the gory details of why
// this is necessary.
let lifetime_name = self.str_from(start);
if starts_with_number {
let span = self.mk_sp(start, self.pos);
let mut diag = self.sess.struct_err("lifetimes or labels cannot start with a number");
let mut diag = self.sess.struct_err("lifetimes cannot start with a number");
diag.set_span(span);
diag.stash(span, StashKey::LifetimeIsChar);
} else if contains_emoji {
let span = self.mk_sp(start, self.pos);
let mut diag = self.sess.struct_err("lifetimes or labels cannot contain emojis");
diag.set_span(span);
diag.stash(span, StashKey::LifetimeContainsEmoji);
}
let ident = Symbol::intern(lifetime_name);
token::Lifetime(ident)