Compile.Accelerate

TypeBox achieves high performance by compiling JSON schematics into optimized validation routines. The generated code is then evaluated at runtime within the environment; a technique known as Just-In-Time (JIT) compilation.

While TypeBox takes measures to ensure evaluation is safe, some environments do restrict runtime code evaluation by preventing calls to eval() or new Function(). In such cases, acceleration will not be possible. TypeBox will automatically fall back to interpreted dynamic checking if it detects a restrictive Content Security Policy.

IsAccelerated

You can check if a compiled Validator is using accleration with the IsAccelerated function.

import { Compile } from 'typebox/compile'

const C = Compile(Type.String())

console.log(C.IsAccelerated()) // true if accelerated

Disable Acceleration

You can disable all acceleration with the following system setting.

import System from 'typebox/system'

System.Settings.Set({ useAcceleration: false })   // default is true

// ...

const C = Compile(Type.String())

console.log(C.IsAccelerated())                    // will be false