kasakrisz commented on code in PR #5084:
URL: https://github.com/apache/hive/pull/5084#discussion_r1499289662
##########
hplsql/src/main/java/org/apache/hive/hplsql/functions/InMemoryFunctionRegistry.java:
##########
@@ -132,39 +133,84 @@ private boolean execProc(String name,
HplsqlParser.Expr_func_paramsContext ctx)
/**
* Set parameters for user-defined function call
*/
- public static void setCallParameters(String procName,
HplsqlParser.Expr_func_paramsContext actual, ArrayList<Var> actualValues,
- HplsqlParser.Create_routine_paramsContext formal,
- HashMap<String, Var> out,
- Exec exec) {
- if (actual == null || actual.func_param() == null || actualValues == null)
{
+ public static void setCallParameters(String procName,
HplsqlParser.Expr_func_paramsContext actual,
+ ArrayList<Var> actualValues, HplsqlParser.Create_routine_paramsContext
formal, HashMap<String, Var> out,
+ Exec exec) {
+ // if it is a non-parameter function then just return.
+ if (actual == null && formal == null) {
return;
}
- int actualCnt = actualValues.size();
- int formalCnt = formal.create_routine_param_item().size();
- if (formalCnt != actualCnt) {
- throw new ArityException(actual.getParent(), procName, formalCnt,
actualCnt);
+ int actualCnt = (actualValues == null) ? 0 : actualValues.size();
+ int passedParamCnt = actualCnt;
+ List<HplsqlParser.Create_routine_param_itemContext> routineParamItem =
formal.create_routine_param_item();
+ int formalCnt = routineParamItem.size();
+ ParserRuleContext ruleContext = (actual == null) ? null :
actual.getParent();
Review Comment:
Is it possible that `actualValues` is null and `actual` is not null or vice
versa?
if not can we shortcut that code by checking whether any actual parameter
passed and extract the code part which handles the case when no actual
parameter passed.
It would help get rid of conditions like `(actual == null)`
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