[GROOVY-9545] DGM: add toArray(Class) extension method for java.util.stream.Stream

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 4.x, 3.0.3
• Fix Version/s: 4.0.0-alpha-1, 3.0.4
• Component/s: groovy-jdk
• Assignee: Eric Milles
• Reporter: Eric Milles
• Created: 08/May/20 18:07
• Updated: 22/May/20 04:03
• Resolved: 17/May/20 07:28

Description

Proposal to add a new extension method for Stream that returns a typed array with minimal boilerplate (i.e. is somewhere in between toArray() and toArray(IntFunction):

void test(List<String> list) {
  def array = list.stream().toArray() // returns Object[]
  array = list.stream().toArray(String) // returns String[] -- proposed extension
  array = list.stream().toArray(String[]::new) // returns String[] but requires "[]::new"
}