Crate oxc_minifier 

Oxc Minifier

High-performance JavaScript/TypeScript minifier focused on maximum compression.

Overview

The Oxc minifier applies a comprehensive set of optimizations to JavaScript code to achieve the smallest possible output while maintaining correctness. It draws inspiration from industry-leading minifiers like Closure Compiler, Terser, esbuild, and SWC.

Features

• Maximum Compression: Fixed-point iteration ensures all optimization opportunities are found
• Comprehensive Optimizations: 17+ transformation passes and growing
• 100% Correct: Extensive testing with test262, Babel, and TypeScript test suites
• Fast: Efficient algorithms and arena allocation for performance

Example

use oxc_minifier::{Minifier, MinifierOptions};
use oxc_allocator::Allocator;
use oxc_parser::Parser;
use oxc_span::SourceType;

let allocator = Allocator::default();
let source_text = "const x = 1 + 1; console.log(x);";
let source_type = SourceType::mjs();
let ret = Parser::new(&allocator, source_text, source_type).parse();
let mut program = ret.program;

let options = MinifierOptions::default();
let minifier = Minifier::new(options);
let result = minifier.minify(&allocator, &mut program);

Architecture

The minifier consists of:

• Compressor: Orchestrates the optimization pipeline
• Peephole Optimizations: Individual transformation passes
• Mangler: Variable renaming for size reduction

See the crate documentation for more details.

Structs

CompressOptions

CompressOptionsKeepNames

Compressor

MangleOptions

MangleOptionsKeepNames

Minifier

MinifierOptions

MinifierReturn

TreeShakeOptions

Enums

CompressOptionsUnused

PropertyReadSideEffects