[NETBEANS-481] New ErrorRule to fix compiler error on initialization of var type variable with array

• Type: Improvement
• Status: Closed
• Priority: Trivial
• Resolution: Fixed
• Fix Version/s: 9.0
• Labels: JDK10-LVTI pull-request-available
• Assignee: ARUNAVA SINHA
• Reporter: ARUNAVA SINHA
• Created: 16/Mar/18 06:10
• Updated: 03/Nov/19 20:04
• Resolved: 30/May/18 05:37

Description

Below statement throws compiler error.

var arr = {1,2};

: error: cannot infer type for local variable var k = { 1 , 2 }; ^

(array initializer needs an explicit target-type)

 

Proposed fix would be

 int[] arr = { 1, 2 };

The fix will be provided for Numeric primitive type array or for array with homogeneous members.

a)Homogeneous type 
1. var arr =  { new Object(), new Object()};
fix: Object[] arr = { new Object(), new Object()};

 

 

2. var arr = {"hello", "world"};
fix: String[] arr = {"hello", "world"};

b)Primitive Type Numeric array
var arr = {1,2.2};
fix: double[] arr = {1,2.2};

 

PR Link:

https://github.com/apache/incubator-netbeans/pull/519

Issue Links

• links to: GitHub Pull Request #519