[GROOVY-876] support closure with 2 params in default Method collect(Map, Collection, Closure)

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.0-JSR-1
• Fix Version/s: 1.0-JSR-4
• Component/s: groovy-jdk
• Environment: All
• Assignee: Hein Meling
• Reporter: wangbin
• Created: 12/Jun/05 04:14
• Updated: 06/Sep/05 03:13
• Resolved: 06/Sep/05 03:13

Description

/**

• Iterates through this Map transforming each entry into a new value using the closure
• as a transformer, returning a list of transformed values.
  *
• @param self a Map
• @param closure the closure used for mapping, which can be with one(Map.Entry) or two(key, value) parameters
• @return a List of the mapped values
  */
  public static Collection collect(Map self, Collection collection, Closure closure) {
  boolean isTwoParams = (closure.getParameterTypes().length == 2);
  for (Iterator iter = self.entrySet().iterator(); iter.hasNext() {
  if (isTwoParams)
  Unknown macro: { Map.Entry entry = (Map.Entry) iter.next(); collection.add(closure.call(new Object[]{entry.getKey(), entry.getValue()})); }

  else

  { collection.add(closure.call(iter.next())); }

  }
  return collection;
  }