[ARROW-12859] [C++] Add ScalarFromJSON for easier testing

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 5.0.0
• Component/s: C++
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/28592
• Assignee: David Li
• Reporter: David Li
• Created: 24/May/21 13:37
• Updated: 11/Jan/23 08:29
• Resolved: 02/Jun/21 09:44

Description

We have ArrayFromJSON and various others but not DatumFromJSON which would make things a little easier.

(Originally this suggested making a DatumFromJSON but then it's ambiguous whether something might be, for instance, an array or a list scalar, as Antoine pointed out.)

Issue Links

• links to: GitHub Pull Request #10386