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refactor parse_if_expr

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This commit is contained in:
Mazdak Farrokhzad 2019-12-06 23:33:13 +01:00
parent 44ff4df49d
commit 7bcc325034
2 changed files with 4 additions and 10 deletions
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10
src/librustc_parse/parser/expr.rs
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@ -1423,14 +1423,8 @@ impl<'a> Parser<'a> {
err
})?
};
let mut els = None;
let mut hi = thn.span;
if self.eat_keyword(kw::Else) {
let elexpr = self.parse_else_expr()?;
hi = elexpr.span;
els = Some(elexpr);
}
Ok(self.mk_expr(lo.to(hi), ExprKind::If(cond, thn, els), attrs))
let els = if self.eat_keyword(kw::Else) { Some(self.parse_else_expr()?) } else { None };
Ok(self.mk_expr(lo.to(self.prev_span), ExprKind::If(cond, thn, els), attrs))
}
fn error_missing_if_cond(&self, lo: Span, span: Span) -> P<ast::Block> {