@Override 
Parameter returns xtend::XtendParameter:
	{SarlFormalParameter} annotations+=XAnnotation*
	(extension?='extension' annotations+=XAnnotation*)?
	name=ValidID ':' parameterType=JvmTypeReference 
	(   (varArg?='*')
	  | ('=' defaultValue=XExpression))?
;

interface Example {
  def fct1(param1 : Object = Collections.emptyList)
  def fct2(param2 : boolean = true)
}

LightweightTypeReference fromType = getExpectedType(defaultValue);
if (fromType == null) {
    fromType = getActualType(defaultValue);
}

interface Example {
  def fct1(param1 : Object = new Object)
  def fct2(param2 : boolean = true)
}

def fct(a : int, b : Object = Collections::emptyList) {}

private static final Object $DEFAULT_VALUE = Collections.emptyList();
public void fct(int a, Object b) {
}
public final void fct(int a) {
  fct(a, $DEFAULT_VALUE);
}

		Operation : {
						for (p : f.params.filter(FullJvmFormalParameter)) {
								members += p.toField(f.name+"_" + p.name+ "_default", p.parameterType) [
									initializer = p.defaultValue
								]
							}

interface Example {
   def fct1(a : Object = Collections::emptyList)
   def fct2(a : boolean = true)
}

public interface Example {
   public abstract void fct1(Object a);

   @SarlSourceCode("Collections::emptyList")
   public static final Object $DEFAULTVALUE$FCT1_0 = Collections.emptyList();

   public default void fct1() {
      fct1($DEFAULTVALUE$FCT1_0);
   }

   public abstract void fct2(boolan a);

   @SarlSourceCode("true")
   public static final boolean $DEFAULTVALUE$FCT2_0 = true;

   public default void fct2() {
      fct2($DEFAULTVALUE$FCT2_0);
   }
}

final String rawCode = reentrantSerialize(defaultValue);
appendSarlSourceCodeAnnotation(field, rawCode);

	private def String reentrantSerialize(EObject object) {
		var contexts = this.contextFinder.findByContentsAndContainer(object, null);
		// This is a bug fix for a bug that I cannot explain.
		// I some cases, the context of the given expression cannot be retreive directly.
		// A second call to the finding function solves the problem.
		while (contexts == null || contexts.isEmpty()) {
			Thread.yield();
			contexts = this.contextFinder.findByContentsAndContainer(object, null);
		}
		var code = this.sarlSerializer.serialize(object);
		if (code != null) {
			return code.trim();
		}
		return code;
	}

private def String reentrantSerialize(EObject object) {
	var node = NodeModelUtils::getNode(object)
	if (node !== null) {
		var text = node.text
		if (text !== null) {
			text = text.trim
		}
		return Strings::emptyToNull(text)
	}
	return null
}