bug fixed and add license

2023-03-04 19:17:16 +00:00 · 2013-06-09 23:36:03 +08:00
parent 0609ce5d26
commit 32c0d8f654
10 changed files with 170 additions and 0 deletions
@@ -48,6 +48,10 @@ public abstract class SQLObjectImpl implements SQLObject, Serializable {
    protected abstract void accept0(SQLASTVisitor visitor);

    protected final void acceptChild(SQLASTVisitor visitor, List<? extends SQLObject> children) {
+        if (children == null) {
+            return;
+        }
+        
        for (SQLObject child : children) {
            acceptChild(visitor, child);
        }