From 083963e58c752f1a51b67d65dc6a207bf69f1d64 Mon Sep 17 00:00:00 2001 From: Mazdak Farrokhzad Date: Sun, 25 Aug 2019 01:50:21 +0200 Subject: parser: 'while parsing this or-pattern...' --- src/libsyntax/parse/parser/pat.rs | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'src/libsyntax/parse/parser') diff --git a/src/libsyntax/parse/parser/pat.rs b/src/libsyntax/parse/parser/pat.rs index 7c09dc4e566..a0278fa4077 100644 --- a/src/libsyntax/parse/parser/pat.rs +++ b/src/libsyntax/parse/parser/pat.rs @@ -81,7 +81,10 @@ impl<'a> Parser<'a> { let lo = first_pat.span; let mut pats = vec![first_pat]; while self.eat_or_separator() { - let pat = self.parse_pat(None)?; + let pat = self.parse_pat(None).map_err(|mut err| { + err.span_label(lo, "while parsing this or-pattern staring here"); + err + })?; self.maybe_recover_unexpected_comma(pat.span, top_level)?; pats.push(pat); } -- cgit 1.4.1-3-g733a5