[JEXL-248] Allow range subexpression as an array property assignment identifier

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.1
• Fix Version/s: 3.2
• Assignee: Henri Biestro
• Reporter: Dmitri Blinov
• Created: 18/Jan/18 05:39
• Updated: 07/Jun/21 13:14
• Resolved: 21/Jan/18 10:54

Description

While it is syntaxically possible to use range subexpression for accessing array properties

x = stringbuilder("qwerty"); x[0..2]

It is not allowed now to use range subexpression for setting array properties, for example the following code

x = stringbuilder("qwerty"); x[0..2] = "qq"; 

throws a parsing exception org.apache.commons.jexl3.JexlException$Assignment: "qq"@1:40 assignment error near '... qwerty"); x[0..2] = "qq"; x ...'

Nevertheless the following code parses and executes as expected

y = 0..2; x = stringbuilder("qwerty"); x[y] = "qq"; x

It would be more convenient to have inline range subexpressions allowed for accessing arrays for both getting and setting