mailru/easyjson
Easyjson
easyjson is a high-performance JSON serializer and memory-optimized parser for Go. It provides a reflectionless code generator that creates static Go methods for marshaling and unmarshaling data, eliminating the need for runtime reflection to improve execution speed.
The library reduces CPU and memory overhead through several optimization strategies. It employs a system of reusable memory buffer pools to minimize heap allocations and garbage collection pressure. Additionally, it utilizes string interning to deduplicate repeated values and zero-copy string referencing to point to existing buffer segments rather than allocating new strings.
The project covers high-performance JSON processing, static code generation, and advanced memory management to optimize the conversion of data between Go structs and JSON.
Features
- High-Performance JSON Encoders - Provides an optimized implementation for converting Go data structures into JSON text with minimal overhead.
- JSON-to-Object Mappers - Provides high-performance mapping of JSON text into strongly typed Go structures.
- Reflectionless Encoders - Provides a tool that generates static methods to avoid runtime reflection during JSON encoding.
- JSON Serializers - Provides optimized utilities for transforming Go data structures into formatted JSON strings.
- Reflectionless Code Generators - Ships a tool for creating custom marshaling and unmarshaling functions to eliminate runtime reflection.
- Marshaling Code Generators - Generates type-specific marshaling functions at build time to avoid runtime reflection.
- Memory-Efficient Parsing - Minimizes memory overhead during JSON parsing through string interning and buffer pooling.
- JSON Serializers - Provides a high-performance library for encoding and decoding JSON data in Go without reflection.
- JSON Memory Optimizations - Implements a parser that reduces allocations through string interning and reusable memory buffer pools.
- Reflection-Free Serialization - Implements specialized marshaling methods that bypass runtime type inspection for maximum performance.
- Reflectionless Serialization - Uses compile-time code generation to avoid runtime reflection overhead during JSON serialization.
- Zero-Copy Parsing - Extracts data from input buffers by returning slices instead of allocating new memory strings.
- Buffer-Based Memory Management - Uses raw binary buffers to handle JSON data for high-performance memory efficiency and reduced GC.
- Constant String Referencing - Optimizes memory by referencing existing buffer segments instead of copying strings for short-lived objects.
- String Deduplication - Reduces memory consumption by storing only one copy of duplicate strings encountered during parsing.
- Go Performance Optimization - Improves execution speed and reduces memory allocations for Go applications handling high JSON traffic.
- Schema-Tailored Unmarshaling - Maps JSON fields to struct members using generated logic tailored to the specific data schema.
- Reusable Buffer Pools - Utilizes recycled memory buffers to minimize heap allocations and garbage collection pressure.
- JSON Processing - Fast JSON serialization.
Star history
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