[SPARK-23546] Refactor non-stateful methods/values in CodegenContext

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.3.0
• Component/s: SQL
• Target Version/s: 2.3.0
• Assignee: Kazuaki Ishizaki
• Reporter: Kazuaki Ishizaki
• Created: 01/Mar/18 10:45
• Updated: 05/Mar/18 10:46
• Resolved: 05/Mar/18 10:46

Description

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.

Issue Links

• links to: [Github] Pull Request #20700 (kiszk)