public static bool RemoveKey(StackValue array, StackValue key, Core core)
{
Validity.Assert(StackUtils.IsArray(array));
if (!StackUtils.IsArray(array))
{
return(false);
}
HeapElement he = GetHeapElement(array, core);
if (StackUtils.IsNumeric(key))
{
long index = key.AsInt().opdata;
if (index < 0)
{
index = index + he.VisibleSize;
}
if (index >= 0 && index < he.VisibleSize)
{
StackValue oldValue = he.Stack[index];
he.Stack[index] = StackUtils.BuildNull();
if (index == he.VisibleSize - 1)
{
he.VisibleSize -= 1;
}
return(true);
}
}
else
{
if (he.Dict != null && he.Dict.ContainsKey(key))
{
StackValue value = he.Dict[key];
GCUtils.GCRelease(key, core);
GCUtils.GCRelease(value, core);
he.Dict.Remove(key);
return(true);
}
}
return(false);
}
/// <summary>
/// Copy an array and coerce its elements/values to target type
/// </summary>
/// <param name="array"></param>
/// <param name="type"></param>
/// <param name="core"></param>
/// <returns></returns>
public static StackValue CopyArray(StackValue array, Type type, Core core)
{
Validity.Assert(array.IsArray);
if (!array.IsArray)
{
return(StackValue.Null);
}
HeapElement he = GetHeapElement(array, core);
Validity.Assert(he != null);
int elementSize = GetElementSize(array, core);
StackValue[] elements = new StackValue[elementSize];
for (int i = 0; i < elementSize; i++)
{
StackValue coercedValue = TypeSystem.Coerce(he.Stack[i], type, core);
GCUtils.GCRetain(coercedValue, core);
elements[i] = coercedValue;
}
Dictionary <StackValue, StackValue> dict = null;
if (he.Dict != null)
{
dict = new Dictionary <StackValue, StackValue>(new StackValueComparer(core));
foreach (var pair in he.Dict)
{
StackValue key = pair.Key;
StackValue value = pair.Value;
StackValue coercedValue = TypeSystem.Coerce(value, type, core);
GCUtils.GCRetain(key, core);
GCUtils.GCRetain(coercedValue, core);
dict[key] = coercedValue;
}
}
return(core.Heap.AllocateArray(elements, dict));
}
/// <summary>
/// Try to get value for key from nested dictionaries. This function is
/// used in the case that indexing into dictionaries that returned from
/// a replicated function whose return type is dictionary.
/// </summary>
/// <param name="array"></param>
/// <param name="key"></param>
/// <param name="value"></param>
/// <param name="core"></param>
/// <returns></returns>
public static bool TryGetValueFromNestedDictionaries(StackValue array, StackValue key, out StackValue value, Core core)
{
if (!array.IsArray)
{
value = StackValue.Null;
return(false);
}
HeapElement he = GetHeapElement(array, core);
if (he.Dict != null && he.Dict.TryGetValue(key, out value))
{
return(true);
}
var values = new List <StackValue>();
bool hasValue = false;
foreach (var element in he.VisibleItems)
{
StackValue valueInElement;
if (TryGetValueFromNestedDictionaries(element, key, out valueInElement, core))
{
hasValue = true;
GCUtils.GCRetain(valueInElement, core);
values.Add(valueInElement);
}
}
if (hasValue)
{
value = core.Heap.AllocateArray(values, null);
return(true);
}
else
{
value = StackValue.Null;
return(false);
}
}
/// <summary>
/// = array[index1][index2][...][indexN], and
/// indices = {index1, index2, ..., indexN}
/// </summary>
/// <param name="array"></param>
/// <param name="indices"></param>
/// <param name="core"></param>
/// <returns></returns>
public static StackValue GetValueFromIndices(StackValue array, List <StackValue> indices, Core core)
{
if (indices.Count == 0)
{
return(array);
}
else if (!array.IsArray && !array.IsString)
{
core.RuntimeStatus.LogWarning(WarningID.kOverIndexing, WarningMessage.kArrayOverIndexed);
return(StackValue.Null);
}
StackValue[][] zippedIndices = ArrayUtils.GetZippedIndices(indices, core);
if (zippedIndices == null || zippedIndices.Length == 0)
{
return(StackValue.Null);
}
StackValue[] values = new StackValue[zippedIndices.Length];
for (int i = 0; i < zippedIndices.Length; ++i)
{
values[i] = GetValueFromIndices(array, zippedIndices[i], core);
}
if (zippedIndices.Length > 1)
{
for (int i = 0; i < values.Length; ++i)
{
GCUtils.GCRetain(values[i], core);
}
return(core.Heap.AllocateArray(values, null));
}
else
{
return(values[0]);
}
}
public static StackValue CoerceArray(StackValue array, Type typ, Core core)
{
//@TODO(Luke) handle array rank coersions
Validity.Assert(IsArray(array), "Argument needs to be an array {99FB71A6-72AD-4C93-8F1E-0B1F419C1A6D}");
//This is the element on the heap that manages the data structure
HeapElement heapElement = core.Heap.Heaplist[(int)array.opdata];
StackValue[] newSVs = new StackValue[heapElement.VisibleSize];
for (int i = 0; i < heapElement.VisibleSize; ++i)
{
StackValue sv = heapElement.Stack[i];
StackValue coercedValue;
if (IsArray(sv))
{
Type typ2 = new Type();
typ2.UID = typ.UID;
typ2.rank = typ.rank - 1;
typ2.IsIndexable = (typ2.rank == -1 || typ2.rank > 0);
coercedValue = CoerceArray(sv, typ2, core);
}
else
{
coercedValue = TypeSystem.Coerce(sv, typ, core);
}
GCUtils.GCRetain(coercedValue, core);
newSVs[i] = coercedValue;
}
return(HeapUtils.StoreArray(newSVs, core));
}