parser: `parse_pats` -> `parse_top_pat{_unpack}`.

1 files changed, 7 insertions, 5 deletions

diff --git a/src/libsyntax/parse/parser/expr.rs b/src/libsyntax/parse/parser/expr.rs
index 5da9b75d53b..b9dd8518171 100644
--- a/src/libsyntax/parse/parser/expr.rs
+++ b/src/libsyntax/parse/parser/expr.rs
@@ -1241,11 +1241,12 @@ impl<'a> Parser<'a> {
         Ok(cond)
     }
 
-    /// Parses a `let $pats = $expr` pseudo-expression.
+    /// Parses a `let $pat = $expr` pseudo-expression.
     /// The `let` token has already been eaten.
     fn parse_let_expr(&mut self, attrs: ThinVec<Attribute>) -> PResult<'a, P<Expr>> {
         let lo = self.prev_span;
-        let pats = self.parse_pats()?;
+        // FIXME(or_patterns, Centril | dlrobertson): use `parse_top_pat` instead.
+        let pat = self.parse_top_pat_unpack(false)?;
         self.expect(&token::Eq)?;
         let expr = self.with_res(
             Restrictions::NO_STRUCT_LITERAL,
@@ -1253,7 +1254,7 @@ impl<'a> Parser<'a> {
         )?;
         let span = lo.to(expr.span);
         self.sess.gated_spans.let_chains.borrow_mut().push(span);
-        Ok(self.mk_expr(span, ExprKind::Let(pats, expr), attrs))
+        Ok(self.mk_expr(span, ExprKind::Let(pat, expr), attrs))
     }
 
     /// `else` token already eaten
@@ -1387,7 +1388,8 @@ impl<'a> Parser<'a> {
     crate fn parse_arm(&mut self) -> PResult<'a, Arm> {
         let attrs = self.parse_outer_attributes()?;
         let lo = self.token.span;
-        let pats = self.parse_pats()?;
+        // FIXME(or_patterns, Centril | dlrobertson): use `parse_top_pat` instead.
+        let pat = self.parse_top_pat_unpack(false)?;
         let guard = if self.eat_keyword(kw::If) {
             Some(self.parse_expr()?)
         } else {
@@ -1448,7 +1450,7 @@ impl<'a> Parser<'a> {
 
         Ok(ast::Arm {
             attrs,
-            pats,
+            pats: pat, // FIXME(or_patterns, Centril | dlrobertson): this should just be `pat,`.
             guard,
             body: expr,
             span: lo.to(hi),