From 8640a51ff8d580bbb87aa3dc0ff8bacbad111010 Mon Sep 17 00:00:00 2001
From: Vadim Petrochenkov <vadim.petrochenkov@gmail.com>
Date: Sat, 24 Feb 2018 03:12:35 +0300
Subject: Implement multiple patterns with `|` in `if let` and `while let`

---
 src/libsyntax/parse/parser.rs | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

(limited to 'src/libsyntax/parse/parser.rs')

diff --git a/src/libsyntax/parse/parser.rs b/src/libsyntax/parse/parser.rs
index 74daa5179d3..50955f2786f 100644
--- a/src/libsyntax/parse/parser.rs
+++ b/src/libsyntax/parse/parser.rs
@@ -3226,7 +3226,7 @@ impl<'a> Parser<'a> {
                              -> PResult<'a, P<Expr>> {
         let lo = self.prev_span;
         self.expect_keyword(keywords::Let)?;
-        let pat = self.parse_pat()?;
+        let pats = self.parse_pats()?;
         self.expect(&token::Eq)?;
         let expr = self.parse_expr_res(Restrictions::NO_STRUCT_LITERAL, None)?;
         let thn = self.parse_block()?;
@@ -3236,7 +3236,7 @@ impl<'a> Parser<'a> {
         } else {
             (thn.span, None)
         };
-        Ok(self.mk_expr(lo.to(hi), ExprKind::IfLet(pat, expr, thn, els), attrs))
+        Ok(self.mk_expr(lo.to(hi), ExprKind::IfLet(pats, expr, thn, els), attrs))
     }
 
     // `move |args| expr`
@@ -3327,13 +3327,13 @@ impl<'a> Parser<'a> {
                                 span_lo: Span,
                                 mut attrs: ThinVec<Attribute>) -> PResult<'a, P<Expr>> {
         self.expect_keyword(keywords::Let)?;
-        let pat = self.parse_pat()?;
+        let pats = self.parse_pats()?;
         self.expect(&token::Eq)?;
         let expr = self.parse_expr_res(Restrictions::NO_STRUCT_LITERAL, None)?;
         let (iattrs, body) = self.parse_inner_attrs_and_block()?;
         attrs.extend(iattrs);
         let span = span_lo.to(body.span);
-        return Ok(self.mk_expr(span, ExprKind::WhileLet(pat, expr, body, opt_label), attrs));
+        return Ok(self.mk_expr(span, ExprKind::WhileLet(pats, expr, body, opt_label), attrs));
     }
 
     // parse `loop {...}`, `loop` token already eaten
-- 
cgit 1.4.1-3-g733a5