cloud-fan commented on a change in pull request #32527:
URL: https://github.com/apache/spark/pull/32527#discussion_r631560800
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/objects/objects.scala
##########
@@ -127,13 +128,18 @@ trait InvokeLike extends Expression with NonSQLExpression
{
arguments: Seq[Expression],
input: InternalRow,
dataType: DataType): Any = {
- val args = arguments.map(e => e.eval(input).asInstanceOf[Object])
- if (needNullCheck && args.exists(_ == null)) {
+ var i = 0
+ val len = arguments.length
+ while (i < len) {
+ evaluatedArgs(i) = arguments(i).eval(input).asInstanceOf[Object]
+ i += 1
+ }
+ if (needNullCheck && evaluatedArgs.contains(null)) {
// return null if one of arguments is null
null
} else {
val ret = try {
- method.invoke(obj, args: _*)
+ method.invoke(obj, evaluatedArgs: _*)
} catch {
Review comment:
Can we also improve the last piece?
```
val boxedClass = ScalaReflection.typeBoxedJavaMapping.get(dataType)
if (boxedClass.isDefined) {
boxedClass.get.cast(ret)
} else {
ret
}
```
We can create a function for it
```
private lazy val boxing: Any => Any =
ScalaReflection.typeBoxedJavaMapping.get(dataType).map(_.cast(_)).getOrElse(identity)
```
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