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Deserialize to named data store output #15469

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Merged
merged 4 commits into from
Oct 31, 2025
Merged

Deserialize to named data store output #15469

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4fd6ef5
Deserialize to named data store output
lucylq Oct 30, 2025
ceb3cc8
Update on "Deserialize to named data store output"
lucylq Oct 30, 2025
aaa345f
Update on "Deserialize to named data store output"
lucylq Oct 30, 2025
4596575
Update on "Deserialize to named data store output"
lucylq Oct 30, 2025
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1 change: 1 addition & 0 deletions extension/flat_tensor/serialize/TARGETS
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Original file line number Diff line number Diff line change
Expand Up @@ -29,6 +29,7 @@ runtime.python_library(
],
visibility = [
"//executorch/...",
"@EXECUTORCH_CLIENTS",
],
deps = [
":schema",
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14 changes: 14 additions & 0 deletions extension/flat_tensor/serialize/serialize.py
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Expand Up @@ -20,6 +20,7 @@
from executorch.exir._serialize._cord import Cord
from executorch.exir._serialize._dataclass import _DataclassEncoder, _json_to_dataclass
from executorch.exir._serialize._flatbuffer import _flatc_compile, _flatc_decompile
from executorch.exir._serialize._named_data_store import NamedDataStoreOutput
from executorch.exir._serialize._program import _insert_flatbuffer_header
from executorch.exir._serialize.data_serializer import (
DataEntry,
Expand Down Expand Up @@ -389,6 +390,8 @@ def serialize(
def deserialize(self, blob: Cord) -> DataPayload:
"""
Deserializes a flat_tensor blob into a list of tensor metadata and tensors.

Note: deserialization does not preserve alignment information.
"""

data = bytes(blob)
Expand Down Expand Up @@ -436,3 +439,14 @@ def deserialize(self, blob: Cord) -> DataPayload:
payload.named_data[named_data.key] = entry

return payload

def deserialize_to_named_data_store_output(
self, blob: bytes, name: str
) -> NamedDataStoreOutput:
bytes = Cord(blob)
data_payload = self.deserialize(bytes)
return NamedDataStoreOutput(
buffers=data_payload.buffers,
pte_data={},
external_data={name: data_payload.named_data},
)