C++26 static reflection (#2282)

* Initial work on JSON builder * moving the files back to ondemand for now. * tweak * more later * update * minor edits * dropping vs arm (missing support) * adding tests. we still specialized write_string_escaped * tweaking * fix typo * tweaking the approach * minor fix * missing store * another missing store * Attempt at fixing failing serialization tests. (#2292) * Fixing appeand_float typo (#2294) * applying a couple of fixes * updating single header * fix for pre C++17 if constexpr * Fixing unused argument problem and updating the singleheader file * various pedantic fixes * Sketch of builder * reordering. * simplify * Adding draft of static reflection based deserialization * Updating simdjson singleheader * patching the automated deserialization. * automated * Adding support for smart pointers of user defined types. * Adding specialization for smart pointers for basic types. I think it is highly likely that this can be done in a more generic way. * Referncing a later version of rapidjson that fixed the issue related with assignment attempt of a const variable for GenericStringRef class. * guarding the tests * adding documentation for string_builder * saving * rename to 'append' * saving * non-functional benchmarks (#2342) * non-functional benchmarks * Fix typo * various fixes * tweaking --------- Co-authored-by: Daniel Lemire <dlemire@lemire.me> Co-authored-by: Francisco Geiman Thiesen <franciscogthiesen@gmail.com> * tuning * various minor fixes * minor tweak * minor simplification * updating amal * adding a cast * update * fancy casting * removing dead code * Pushing latest changes. CITM benchmark is still not working. * Still not working, but now I am getting only 10 errors. * add static reflection benchmark to 'large random' benchmark and allows (#2349) deserialization (with static reflection) from objects and arrays. Co-authored-by: Daniel Lemire <dlemire@lemire.me> * Removing std::map from CitmCatalog definition, since that is not currently supported. * Added free to rust bench, segfault is still happening.. * The syntax changed: ^E became ^^E. (#2350) * The syntax changed: ^E became ^^E. * guarding --------- Co-authored-by: Daniel Lemire <dlemire@lemire.me> * Adding support for string_view_keyed_map types. * Adding concepts as a conditional include. * updating single-header * Adding concepts to ondemand deps * rust benchmark is finally working * Fixing small typo in docs. * adding docker config and instructions so that our users can test the static reflection (#2358) * adding docker config and instructions so that our users can test the static reflection * completing the instructions * pruning white spaces --------- Co-authored-by: Daniel Lemire <dlemire@lemire.me> * minor optimizations on the JSON builder branch * avoiding undef behaviour * saving * somewhat nicer builder * make it possible to run just one benchmark * adding linux perf * fixing minor issue * updating swar * Adding real world compilation benchmark (#2379) * Adding compilation benchmark for json parsing with and without reflection * Moving it to the benchmark folder, also reducing a bit the number of iterations. * Removing script from root folder. * Reducing number of iterations * Update benchmark/benchmark_reflection_usage_compilation.sh Co-authored-by: Daniel Lemire <daniel@lemire.me> * Update benchmark/benchmark_reflection_usage_compilation.sh Co-authored-by: Daniel Lemire <daniel@lemire.me> * Update benchmark/benchmark_reflection_usage_compilation.sh Co-authored-by: Daniel Lemire <daniel@lemire.me> * Making the script more customizable and also test whether the compiler being used supports reflection before actually running the benchmark --------- Co-authored-by: Daniel Lemire <daniel@lemire.me> * Using define_static_string from https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2025/p3491r2.html (#2389) * Applying changes needed after latest reflection paper updates. * Working, but no template for yet. * Updating single-header to incldue the use of define_static_string. * copying over master --------- Co-authored-by: Daniel Lemire <dlemire@lemire.me> Co-authored-by: Francisco Geiman Thiesen <franciscogthiesen@gmail.com>
2026-06-08 17:27:07 +00:00 · 2025-07-14 15:43:52 -04:00
parent 4acaf2ea1c
commit c806e955c4
85 changed files with 55496 additions and 40 deletions
@@ -186,6 +186,9 @@ public:
  simdjson_warn_unused bool validate_utf8(const char * buf, size_t len) const noexcept final override {
    return set_best()->validate_utf8(buf, len);
  }
+  simdjson_warn_unused size_t write_string_escaped(const std::string_view input, char *out) const noexcept final {
+    return set_best()->write_string_escaped(input, out);
+  }
  simdjson_inline detect_best_supported_implementation_on_first_use() noexcept : implementation("best_supported_detector", "Detects the best supported implementation and sets it", 0) {}
 private:
  const implementation *set_best() const noexcept;
@@ -236,6 +239,9 @@ public:
  simdjson_warn_unused error_code minify(const uint8_t *, size_t, uint8_t *, size_t &) const noexcept final override {
    return UNSUPPORTED_ARCHITECTURE;
  }
+  simdjson_warn_unused size_t write_string_escaped(const std::string_view, char *) const noexcept final override {
+    return 0; // TODO: Evaluate whether this is the right thing to do for unsupported architecture.
+  }
  simdjson_warn_unused bool validate_utf8(const char *, size_t) const noexcept final override {
    return false; // Just refuse to validate. Given that we have a fallback implementation
    // it seems unlikely that unsupported_implementation will ever be used. If it is used,
@@ -319,6 +325,9 @@ simdjson_warn_unused error_code minify(const char *buf, size_t len, char *dst, s
 simdjson_warn_unused bool validate_utf8(const char *buf, size_t len) noexcept {
  return get_active_implementation()->validate_utf8(buf, len);
 }
+simdjson_warn_unused size_t write_string_escaped(const std::string_view input, char *out) noexcept {
+  return get_active_implementation()->write_string_escaped(input, out);
+}
 const implementation * builtin_implementation() {
  static const implementation * builtin_impl = get_available_implementations()[SIMDJSON_STRINGIFY(SIMDJSON_BUILTIN_IMPLEMENTATION)];
  assert(builtin_impl);