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Guard against missing list values #7747

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Guard against missing list values #7747

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15 changes: 11 additions & 4 deletions runtime/executor/method.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -414,10 +414,14 @@ Error Method::parse_values() {
new (&values_[i]) EValue(t.get());
} break;
case executorch_flatbuffer::KernelTypes::TensorList: {
const auto items =
static_cast<const executorch_flatbuffer::TensorList*>(val)->items();
ET_CHECK_OR_RETURN_ERROR(
items != nullptr, InvalidProgram, "Missing list at index %zu", i);
// get list of serialization tensors and allocate storage for executor
// tensors
auto tensors = deserialization::parseTensorList(
static_cast<const executorch_flatbuffer::TensorList*>(val)->items(),
items,
values_,
n_value, // The size of the full array.
memory_manager_);
Expand All @@ -432,12 +436,15 @@ Error Method::parse_values() {
new (&values_[i]) EValue(tensors.get());
} break;
case executorch_flatbuffer::KernelTypes::OptionalTensorList: {
const auto items =
static_cast<const executorch_flatbuffer::OptionalTensorList*>(val)
->items();
ET_CHECK_OR_RETURN_ERROR(
items != nullptr, InvalidProgram, "Missing list at index %zu", i);
// Same as TensorList but optional<Tensor> instead of Tensor
auto tensors =
deserialization::parseListOptionalType<exec_aten::Tensor>(
static_cast<const executorch_flatbuffer::OptionalTensorList*>(
val)
->items(),
items,
values_,
n_value, // The size of the full array.
memory_manager_);
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