[jira] [Commented] (SPARK-18521) Add `NoRedundantStringInterpolator` Scala rule

["Apache Spark (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-18521?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15682866#comment-15682866 ] 

Apache Spark commented on SPARK-18521:
--------------------------------------

User 'weiqingy' has created a pull request for this issue:
https://github.com/apache/spark/pull/15960

> Add `NoRedundantStringInterpolator` Scala rule
> ----------------------------------------------
>
>                 Key: SPARK-18521
>                 URL: https://issues.apache.org/jira/browse/SPARK-18521
>             Project: Spark
>          Issue Type: Improvement
>            Reporter: Weiqing Yang
>
> Currently the s string interpolator is used in many cases in which there is no embed variable reference in the processed string literals. 
> For example:
> core/src/main/scala/org/apache/spark/deploy/Client.scala
> {code}
> logError(s"Error processing messages, exiting.")
> {code}
> examples/src/main/scala/org/apache/spark/examples/graphx/SynthBenchmark.scala
> {code}
> println(s"Creating graph...")
> {code}
> examples/src/main/scala/org/apache/spark/examples/mllib/LDAExample.scala
> {code}
> println(s"Corpus summary:")
> {code}
> sql/hive/src/test/scala/org/apache/spark/sql/hive/execution/SQLViewSuite.scala
> {code}
> test(s"correctly handle CREATE OR REPLACE TEMPORARY VIEW") {
> {code}
> We can add a new scala style rule 'NoRedundantStringInterpolator' to prevent unnecessary string interpolators. 



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