code: public EList<XExpression> getExpressions()
  	{
  		if (expressions == null)
  		{
  			expressions = new EObjectContainmentEList<XExpression>(XExpression.class, this, XbasePackage.XBLOCK_EXPRESSION__EXPRESSIONS);
  		}
  		return expressions;
  	}
docs: <!-- begin-user-doc -->
  <!-- end-user-doc -->
  @generated