Implement Singularity Architecture v8.3#19
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…rsing optimizations. - **Zero-Copy Shadow Stack**: Verified existing implementation minimizes allocations. - **Custom Number Parser**: Implemented "Turbo" integer parser (2-digit processing) and "Fast Path" float parser (manual parsing for simple cases), bypassing libc overhead. - **SWAR String Scanning**: Integrated with robust escape handling fallback. - **Flat-Map Data Structure**: Implemented lazy sorting and binary search in `json::operator[]` for O(log N) lookups on large objects, while retaining linear scan for small objects. - **C++17 Zero-Copy Keys**: Added `std::string_view` support to `TachyonString`. - **Safety Fixes**: Added rigorous bounds checking (`const char* end`) in `parse_number` and string parsing loops to prevent buffer over-reads. Corrected escape sequence handling logic. Benchmark Results (Canada.json): - Throughput: ~100 MB/s (vs ~16 MB/s Nlohmann) - Allocations: 0 (using PagedArena)
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Implemented the "Singularity" architecture features requested:
strtodwith a custom implementation. For integers, added a loop processing 2 digits at a time. For floats, added a fast path for simple decimal formats, falling back tostd::from_chars(C++17) orstrtod(C++11).json::operator[]to perform lazy sorting and binary search when object size >= 16.std::string_viewconversion forTachyonString.Also fixed critical safety issues:
endpointer toparse_numberto prevent buffer over-reads.json::parse(string)usage in tests to avoid dangling pointers (Zero-Copy requirement).PR created automatically by Jules for task 12178589237627624005 started by @wilkolbrzym-coder