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-rw-r--r--compiler/rustc_parse/src/parser/expr.rs24
1 files changed, 17 insertions, 7 deletions
diff --git a/compiler/rustc_parse/src/parser/expr.rs b/compiler/rustc_parse/src/parser/expr.rs
index a6df41f47ce..17cbaf65420 100644
--- a/compiler/rustc_parse/src/parser/expr.rs
+++ b/compiler/rustc_parse/src/parser/expr.rs
@@ -246,11 +246,7 @@ impl<'a> Parser<'a> {
                 this.parse_assoc_expr_with(prec + prec_adjustment, LhsExpr::NotYetParsed)
             })?;
 
-            // Make sure that the span of the parent node is larger than the span of lhs and rhs,
-            // including the attributes.
-            let lhs_span =
-                lhs.attrs.iter().find(|a| a.style == AttrStyle::Outer).map_or(lhs_span, |a| a.span);
-            let span = lhs_span.to(rhs.span);
+            let span = self.mk_expr_sp(&lhs, lhs_span, rhs.span);
             lhs = match op {
                 AssocOp::Add
                 | AssocOp::Subtract
@@ -411,7 +407,7 @@ impl<'a> Parser<'a> {
             None
         };
         let rhs_span = rhs.as_ref().map_or(cur_op_span, |x| x.span);
-        let span = lhs.span.to(rhs_span);
+        let span = self.mk_expr_sp(&lhs, lhs.span, rhs_span);
         let limits =
             if op == AssocOp::DotDot { RangeLimits::HalfOpen } else { RangeLimits::Closed };
         Ok(self.mk_expr(span, self.mk_range(Some(lhs), rhs, limits)?, AttrVec::new()))
@@ -571,7 +567,11 @@ impl<'a> Parser<'a> {
         expr_kind: fn(P<Expr>, P<Ty>) -> ExprKind,
     ) -> PResult<'a, P<Expr>> {
         let mk_expr = |this: &mut Self, rhs: P<Ty>| {
-            this.mk_expr(lhs_span.to(rhs.span), expr_kind(lhs, rhs), AttrVec::new())
+            this.mk_expr(
+                this.mk_expr_sp(&lhs, lhs_span, rhs.span),
+                expr_kind(lhs, rhs),
+                AttrVec::new(),
+            )
         };
 
         // Save the state of the parser before parsing type normally, in case there is a
@@ -2324,4 +2324,14 @@ impl<'a> Parser<'a> {
     pub(super) fn mk_expr_err(&self, span: Span) -> P<Expr> {
         self.mk_expr(span, ExprKind::Err, AttrVec::new())
     }
+
+    /// Create expression span ensuring the span of the parent node
+    /// is larger than the span of lhs and rhs, including the attributes.
+    fn mk_expr_sp(&self, lhs: &P<Expr>, lhs_span: Span, rhs_span: Span) -> Span {
+        lhs.attrs
+            .iter()
+            .find(|a| a.style == AttrStyle::Outer)
+            .map_or(lhs_span, |a| a.span)
+            .to(rhs_span)
+    }
 }