[GROOVY-3880] Optional Assignment Operator

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Duplicate
• Component/s: syntax
• Assignee: Daniel Sun
• Reporter: Michael Martz
• Created: 13/Nov/09 11:45
• Updated: 02/May/17 02:33
• Resolved: 25/Jan/17 09:04

Description

I find myself writing a lot of code in the following form:

if(data.field) obj.field = data.field
// Or
obj.field = data.field?: obj.field

It would be nice to have a groovy operator to handle this for me.

obj.field ?= data.field

Issue Links

• duplicates: GROOVY-5291 Add "a ?:= 2" support: should be expanded to "a = a ?: 2"
• is duplicated by: GROOVY-4874 Elvis assignment operator
• relates to: GROOVY-5306 [PARROT] Add "a ?= 2" support (Elvis assignment): should be expanded to "a = a == null ? 2 : a"
• relates to: GROOVY-5291 Add "a ?:= 2" support: should be expanded to "a = a ?: 2"
• relates to: GROOVY-4874 Elvis assignment operator