syntax: Remove an obsolete hack from literal comparisons

This commit is contained in:
Vadim Petrochenkov 2019-05-18 22:46:27 +03:00
parent 9450e7d142
commit 558559e70f

View File

@ -110,12 +110,6 @@ impl Lit {
_ => false,
}
}
// See comments in `Nonterminal::to_tokenstream` for why we care about
// *probably* equal here rather than actual equality
fn probably_equal_for_proc_macro(&self, other: &Lit) -> bool {
mem::discriminant(self) == mem::discriminant(other)
}
}
pub(crate) fn ident_can_begin_expr(ident: ast::Ident, is_raw: bool) -> bool {
@ -590,9 +584,7 @@ impl Token {
a.name == kw::DollarCrate ||
c.name == kw::DollarCrate),
(&Literal(ref a, b), &Literal(ref c, d)) => {
b == d && a.probably_equal_for_proc_macro(c)
}
(&Literal(a, b), &Literal(c, d)) => b == d && a == c,
(&Interpolated(_), &Interpolated(_)) => false,