From e72df7edadcc2ff3fba93b1a0a2e321dc45f8d65 Mon Sep 17 00:00:00 2001 From: Mazdak Farrokhzad Date: Fri, 6 Mar 2020 03:43:59 +0100 Subject: parse_labeled_expr: add a suggestion on missing colon. --- src/librustc_parse/parser/expr.rs | 16 +++++++++++++--- 1 file changed, 13 insertions(+), 3 deletions(-) (limited to 'src/librustc_parse') diff --git a/src/librustc_parse/parser/expr.rs b/src/librustc_parse/parser/expr.rs index 5b39701001f..bab6a58296d 100644 --- a/src/librustc_parse/parser/expr.rs +++ b/src/librustc_parse/parser/expr.rs @@ -1106,14 +1106,24 @@ impl<'a> Parser<'a> { }?; if !ate_colon { - self.struct_span_err(expr.span, "labeled expression must be followed by `:`") - .span_label(lo, "the label") - .emit(); + self.error_labeled_expr_must_be_followed_by_colon(lo, expr.span); } Ok(expr) } + fn error_labeled_expr_must_be_followed_by_colon(&self, lo: Span, span: Span) { + self.struct_span_err(span, "labeled expression must be followed by `:`") + .span_label(lo, "the label") + .span_suggestion_short( + lo.shrink_to_hi(), + "add `:` after the label", + ": ".to_string(), + Applicability::MachineApplicable, + ) + .emit(); + } + /// Recover on the syntax `do catch { ... }` suggesting `try { ... }` instead. fn recover_do_catch(&mut self, attrs: AttrVec) -> PResult<'a, P> { let lo = self.token.span; -- cgit 1.4.1-3-g733a5