Auto merge of #35162 - canndrew:bang_type_coerced, r=nikomatsakis

[rust.git] / src / librustc_typeck / check / mod.rs

diff --git a/src/librustc_typeck/check/mod.rs b/src/librustc_typeck/check/mod.rs
index 8e0f3082bae7a5853a7256ca13021f6fea429f71..d985d3ccbea89751909d018202a7cc999f6086df 100644 (file)
--- a/src/librustc_typeck/check/mod.rs
+++ b/src/librustc_typeck/check/mod.rs
@@ -3516,8 +3516,13 @@ fn check_expr_with_expectation_and_lvalue_pref(&self,
 
             let tcx = self.tcx;
             if !tcx.expr_is_lval(&lhs) {
-                span_err!(tcx.sess, expr.span, E0070,
-                    "invalid left-hand side expression");
+                struct_span_err!(
+                    tcx.sess, expr.span, E0070,
+                    "invalid left-hand side expression")
+                .span_label(
+                    expr.span,
+                    &format!("left-hand of expression not valid"))
+                .emit();
             }
 
             let lhs_ty = self.expr_ty(&lhs);