Method FromEnumerable

source/script_object.cpp:347–375

Calls an Enumerator repeatedly and returns an Array of all first-arg values. This is used in conjunction with Array::ToParams to support other objects.

// Calls an Enumerator repeatedly and returns an Array of all first-arg values.
// This is used in conjunction with Array::ToParams to support other objects.
Array *Array::FromEnumerable(ExprTokenType &aEnumerable)
{
	IObject *enumerator;
	auto result = GetEnumerator(enumerator, aEnumerable, 1, true);
	if (result == FAIL || result == EARLY_EXIT)
		return nullptr;
	
	auto varref = new VarRef();
	ExprTokenType tvar { varref }, *param = &tvar;
	Array *vargs = Array::Create();
	for (;;)
	{
		auto result = CallEnumerator(enumerator, &param, 1, true);
		if (result == FAIL)
		{
			vargs->Release();
			vargs = nullptr;
			break;
		}
		if (result != CONDITION_TRUE)
			break;
		ExprTokenType value;
		varref->ToTokenSkipAddRef(value);
		vargs->Append(value);
	}
	varref->Release();
	enumerator->Release();
	return vargs;
}


//