Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/21537#discussion_r194953280
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/codegen/CodeGenerator.scala
---
@@ -579,6 +579,22 @@ class CodegenContext {
s"${fullName}_$id"
}
+ /**
+ * Creates an `ExprValue` representing a local java variable of required
data type.
+ */
+ def freshName(name: String, dt: DataType): VariableValue =
JavaCode.variable(freshName(name), dt)
+
+ /**
+ * Creates an `ExprValue` representing a local java variable of required
data type.
+ */
+ def freshName(name: String, javaClass: Class[_]): VariableValue =
+ JavaCode.variable(freshName(name), javaClass)
+
+ /**
+ * Creates an `ExprValue` representing a local boolean java variable.
+ */
+ def isNullFreshName(name: String): VariableValue =
JavaCode.isNullVariable(freshName(name))
--- End diff --
yea, but we should open another PR to do this.
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