Groovy example source code file (OldClosureSyntaxRemovalTest.groovy)

This example Groovy source code file (OldClosureSyntaxRemovalTest.groovy) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Groovy tags/keywords

oldclosuresyntaxremovaltest, oldclosuresyntaxremovaltest

The Groovy OldClosureSyntaxRemovalTest.groovy source code

package gls.syntax

public class OldClosureSyntaxRemovalTest extends gls.CompilableTestSupport {
  def a = 2
  def b = 3
  
  void testOneParameter(){
    def newClosure = {a -> a}
    def oldClosure = {a|b}
    assert newClosure(1)==1
    assert oldClosure.getMaximumNumberOfParameters() == 1
    // the old closure would have cimply returned b
    // after removal this is the logic or
    assert oldClosure(1)==(a|b)
  }
  
  void testMultipleParameters() {
    shouldNotCompile """
       c = {a,b|a+b}
    """
    shouldCompile   """
       c = { a,b -> a+b }
    """
  }
}