[C++][Emscripten] JSON integration tests fail on deeply nested lists

[rok]

Describe the bug, including details regarding any error messages, version, and platform.

The Emscripten build fails in arrow-json-integration-test while running TestJsonRoundTrip/TestJsonRoundTrip.RoundTrip/6:

[ RUN ] TestJsonRoundTrip/TestJsonRoundTrip.RoundTrip/5
[ OK ] TestJsonRoundTrip/TestJsonRoundTrip.RoundTrip/5 (0 ms)
[ RUN ] TestJsonRoundTrip/TestJsonRoundTrip.RoundTrip/6
/build/cpp/debug/arrow-json-integration-test.js:138
 throw ex;
 ^

RuntimeError: null function or function signature mismatch
 at arrow-json-integration-test.wasm.std::__2::__shared_count::__release_shared[abi:v160004]() (wasm://wasm/arrow-json-integration-test.wasm-05e44482:wasm-function[19241]:0x10d7e39)
 at arrow-json-integration-test.wasm.std::__2::locale::~locale() (wasm://wasm/arrow-json-integration-test.wasm-05e44482:wasm-function[19282]:0x10da571)
 at arrow-json-integration-test.wasm.std::__2::basic_streambuf<char, std::__2::char_traits<char>>::~basic_streambuf() (wasm://wasm/arrow-json-integration-test.wasm-05e44482:wasm-function[18080]:0x10b1bc9)
 at arrow-json-integration-test.wasm.arrow::Status::AddContextLine(char const*, int, char const*) (wasm://wasm/arrow-json-integration-test.wasm-05e44482:wasm-function[5722]:0x58573c)
 at invoke_viiii (/build/cpp/debug/arrow-json-integration-test.js:5439:29)
 at arrow-json-integration-test.wasm.arrow::Status arrow::internal::integration::json::(anonymous namespace)::ArrayReader::CreateList<arrow::ListType>(std::__2::shared_ptr<arrow::DataType> const&) (wasm://wasm/arrow-json-integration-test.wasm-05e44482:wasm-function[13315]:0xd2a996)
 at invoke_viii (/build/cpp/debug/arrow-json-integration-test.js:5483:29)
 at arrow-json-integration-test.wasm.arrow::internal::integration::json::(anonymous namespace)::ArrayReader::Parse() (wasm://wasm/arrow-json-integration-test.wasm-05e44482:wasm-function[13289]:0xcf8dfa)
 at invoke_vii (/build/cpp/debug/arrow-json-integration-test.js:5472:29)
 at arrow-json-integration-test.wasm.arrow::internal::integration::json::(anonymous namespace)::ArrayReader::GetChildren(simdjson::dom::object const&, arrow::DataType const&) (wasm://wasm/arrow-json-integration-test.wasm-05e44482:wasm-function[13311]:0xd28923)

Node.js v24.19.0

 Start 46: arrow-json-integration-test
 Test #46: arrow-json-integration-test ...........***Failed 0.32 sec
[==========] Running 44 tests from 5 test suites.

This is possibly related with simdjson integration JSON reader changes in #50937

Component(s)

C++

[pitrou]

The error is puzzling. I've asked some emscripten experts to see if they have a clue.

[rok]

#51103 appears to solve this.

[kou]

Issue resolved by pull request 51103
#51103