GitHub user kiszk opened a pull request:
https://github.com/apache/spark/pull/20700
[SPARK-23546][SQL] Refactor non-stateful methods/values in CodegenContext
## What changes were proposed in this pull request?
A current `CodegenContext` class has immutable value or method without
mutable state, too.
This refactoring moves them to `CodeGenerator` object class which can be
accessed from anywhere without an instantiated `CodegenContext` in the program.
Some methods that very frequently used (e.g. `javaType()`) are not
refactored yet.
## How was this patch tested?
Existing tests
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/kiszk/spark SPARK-23546
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/20700.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #20700
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commit 0b2b381bc249ed08b3bf7785158b02352c999ba2
Author: Kazuaki Ishizaki <ishizaki@...>
Date: 2018-03-01T10:47:13Z
initial commit
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