jinchengchenghh commented on PR #41646:
URL: https://github.com/apache/arrow/pull/41646#issuecomment-2172915488
I checked the ( and { is right, but still meet this exception, do you have
some clue? @lidavidm
```
dataset/CMakeFiles/arrow_java_jni_dataset.dir/src/main/cpp/jni_wrapper.cc.o
-c /arrow/java/dataset/src/main/cpp/jni_wrapper.cc
/arrow/java/dataset/src/main/cpp/jni_wrapper.cc:388:57: error: expected ‘,’
or ‘...’ before ‘struct’
388 | arrow::Status FromProto(const google::protobuf::Struct& struct,
| ^~~~~~
/arrow/java/dataset/src/main/cpp/jni_wrapper.cc: In function ‘arrow::Status
FromProto(const google::protobuf::Struct&)’:
/arrow/java/dataset/src/main/cpp/jni_wrapper.cc:390:7: error: expected
primary-expression before ‘struct’
390 | if (struct.fields().empty()) {
| ^~~~~~
/arrow/java/dataset/src/main/cpp/jni_wrapper.cc:390:7: error: expected ‘)’
before ‘struct’
390 | if (struct.fields().empty()) {
| ~^~~~~~
| )
/arrow/java/dataset/src/main/cpp/jni_wrapper.cc:393:36: error: expected
primary-expression before ‘struct’
393 | for (const auto& [name, value] : struct.fields()) {
| ^~~~~~
/arrow/java/dataset/src/main/cpp/jni_wrapper.cc:393:35: error: expected ‘)’
before ‘struct’
393 | for (const auto& [name, value] : struct.fields()) {
| ~ ^~~~~~~
| )
/arrow/java/dataset/src/main/cpp/jni_wrapper.cc:393:36: error: expected
primary-expression before ‘struct’
393 | for (const auto& [name, value] : struct.fields()) {
| ^~~~~~
In file included from /tmp/local/include/arrow/device.h:26,
from /tmp/local/include/arrow/buffer.h:29,
from /tmp/local/include/arrow/array/data.h:27,
from /tmp/local/include/arrow/array/array_base.h:26,
from /tmp/local/include/arrow/array.h:41,
from /arrow/java/dataset/src/main/cpp/jni_wrapper.cc:24:
/arrow/java/dataset/src/main/cpp/jni_wrapper.cc: In function ‘arrow::Status
DeserializeMap(const arrow::Buffer&,
std::unordered_map<std::basic_string<char>, std::basic_string<char> >&)’:
/arrow/java/dataset/src/main/cpp/jni_wrapper.cc:405:25: error: expected
primary-expression before ‘auto’
405 | ARROW_ASSIGN_OR_RAISE(auto struct,
ParseFromBuffer<google::protobuf::Struct>(buf));
| ^~~~
/arrow/java/dataset/src/main/cpp/jni_wrapper.cc:406:20: error: expected
primary-expression before ‘struct’
406 | return FromProto(struct, out);
| ^~~~~~
```
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