evalCallExpression method

dynamic evalCallExpression(CallExpression expression, Map<String?, dynamic> context)

Implementation

dynamic evalCallExpression(
    CallExpression expression, Map<String?, dynamic> context) {
  // olajos - March 14, 2022 - Added Functionality to Convert a.b() to _call call with parameters id, function, list<arguments>
  // olajos - Modified January 26, 2023 - Added isVariable to capture dot notated executes like GLOBAL.x.set('value') or <id>.<subproperty>.set('red');
  MemberExpression? exp = (expression.callee is MemberExpression)
      ? (expression.callee as MemberExpression)
      : null;
  if (exp != null && isVariable(exp.object) && expression.arguments is List) {
    // evaluate id. id may be a bindable
    String id = (expression.callee as MemberExpression).object.toString();
    if (id.startsWith("___V") &&
        context.containsKey(id) &&
        (context[id] is String)) id = context[id];

    // evaluate function. function may be a bindable
    String fn = (expression.callee as MemberExpression).property.toString();
    if (fn.startsWith("___V") &&
        context.containsKey(fn) &&
        (context[fn] is String)) fn = context[fn];

    expression =
        CallExpression(Variable(Identifier("execute")), expression.arguments);
    var callee = eval(expression.callee, context);
    var arguments =
        expression.arguments!.map((e) => eval(e, context)).toList();

    final List<dynamic> args = [id, fn, arguments];
    return Function.apply(callee, args);
  } else {
    var callee = eval(expression.callee, context);
    var arguments =
        expression.arguments!.map((e) => eval(e, context)).toList();
    return Function.apply(callee, arguments);
  }
}