Remove empty compound expressions generated by CYVar.

diff --git a/Replace.cpp b/Replace.cpp
index f51d2234e2232f35b83cc79918715fc4ab82b823..52671c334aae0b69c154f5519211146ced7e1a45 100644 (file)
--- a/Replace.cpp
+++ b/Replace.cpp
@@ -137,6 +137,8 @@ CYStatement *CYComment::Replace(CYContext &context) {
 
 CYExpression *CYCompound::Replace(CYContext &context) {
     context.ReplaceAll(expressions_);
+    if (expressions_ == NULL)
+        return NULL;
     return this;
 }