kou commented on code in PR #50874:
URL: https://github.com/apache/arrow/pull/50874#discussion_r3808299529
##########
cpp/src/arrow/extension/fixed_shape_tensor.cc:
##########
@@ -116,60 +115,189 @@ Result<std::shared_ptr<DataType>>
FixedShapeTensorType::Deserialize(
return Status::Invalid("Expected FixedSizeList storage type, got ",
storage_type->ToString());
}
+
auto fsl_type =
internal::checked_pointer_cast<FixedSizeListType>(storage_type);
auto value_type = fsl_type->value_type();
- rj::Document document;
- if (document.Parse(serialized_data.data(),
serialized_data.length()).HasParseError() ||
- !document.IsObject() || !document.HasMember("shape") ||
- !document["shape"].IsArray()) {
+
+ simdjson::padded_string padded_json(serialized_data);
+ simdjson::ondemand::parser parser;
+ simdjson::ondemand::document document;
+
+ if (auto error = parser.iterate(padded_json).get(document);
+ error != simdjson::SUCCESS) {
Review Comment:
Could you avoid `if (error = ...; error != ...) {` style for readability?
```suggestion
auto error = parser.iterate(padded_json).get(document);
if (error != simdjson::SUCCESS) {
```
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