"Under the hood, Ruby's JSON stack is a highly optimized native C engine with: * recursive parsers * SIMD optimizations * specialized float serialization * buffer management * UTF-8 handling * native Ruby object generation"
"This deep dive explores how JSON.parse and JSON.generate really work inside CRuby."
Ruby’s JSON.parse and JSON.generate use a highly optimized native C engine inside CRuby. Parsing uses recursive parsers to interpret JSON structures. Performance is improved through SIMD optimizations. Float serialization uses specialized handling to produce efficient, correct numeric output. Buffer management supports fast processing of input and output data. UTF-8 handling ensures correct interpretation and generation of Unicode text. The engine generates native Ruby objects from parsed JSON values, integrating the results directly into Ruby runtime data structures.
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