diff options
Diffstat (limited to 'Source/Dafny/Dafny.atg')
| -rw-r--r-- | Source/Dafny/Dafny.atg | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/Source/Dafny/Dafny.atg b/Source/Dafny/Dafny.atg index bfce5122..7d49fb8f 100644 --- a/Source/Dafny/Dafny.atg +++ b/Source/Dafny/Dafny.atg @@ -778,7 +778,11 @@ UpdateStmt<out Statement/*!*/ s> (. if (suchThat != null) {
s = new AssignSuchThatStmt(x, lhss, suchThat, suchThatAssume);
} else {
- s = new UpdateStmt(x, lhss, rhss);
+ if (lhss.Count == 0 && rhss.Count == 0) {
+ s = new BlockStmt(x, new List<Statement>()); // error, give empty statement
+ } else {
+ s = new UpdateStmt(x, lhss, rhss);
+ }
}
.)
.
|