TypeMap
Unified Syntax, Mapping and Compiler System for Runtime Type Systems
Install
$ npm install @sinclair/typemap --save
Usage
Runtime Types from TypeScript Syntax (Example)
import { Zod } from '@sinclair/typemap'
const result = Zod(`string`).parse('Hello World')
Overview
TypeMap is a syntax frontend and compiler backend for the TypeBox, Valibot and Zod type libraries. It provides a uniform syntax for creating types, a runtime compiler for high-performance validation and enables types written in one library to be transformed to another.
TypeMap is built as an advanced adapter system for the TypeBox project. It enables Valibot and Zod to be integrated on TypeBox validation infrastructure as well as enabling TypeBox to be integrated on Zod infrastructure via reverse type mapping.
License: MIT
Contents
Example
Use a TypeScript syntax to create types for TypeBox, Valibot and Zod (Example)
import { TypeBox, Valibot, Zod } from '@sinclair/typemap'
// Parse Syntax | Parse Value
const R = Zod('string | number').parse('...') // const R: string | number
// Common Syntax Type Representation
const S = `{
x: number,
y: number,
z: number
}`
const T = TypeBox(S) // const T: TObject<{
// x: TNumber,
// y: TNumber,
// z: TNumber
// }>
const V = Valibot(S) // const V: ObjectSchema<{
// x: NumberSchema<...>,
// y: NumberSchema<...>,
// z: NumberSchema<...>
// }, ...>
const Z = Zod(S) // const Z: ZodObject<{
// x: ZodNumber,
// y: ZodNumber,
// z: ZodNumber
// }, ...>
Parse and map between TypeBox, Valibot and Zod types (Example)
import { TypeBox, Valibot, Zod } from '@sinclair/typemap'
// Syntax -> Zod -> Valibot -> TypeBox
const T = TypeBox(Valibot(Zod(`{
x: number,
y: number,
z: number
}`)))
Compile Valibot and Zod types on TypeBox validation infrastructure. (Example)
import { Compile } from '@sinclair/typemap'
import z from 'zod'
// Compile Zod Type
const C = Compile(z.object({ // const C: Validator<TObject<{
x: z.number(), // x: TNumber,
y: z.number(), // y: TNumber,
z: z.number(), // z: TNumber
})) // }>>
const R = C.Check({ // Iterations: 10_000_000
x: 1, //
y: 2, // Zod : 4000ms (approx)
z: 3 // TypeMap : 40ms (approx)
})
Libraries
TypeMap, at its core, is a runtime type mapping library. It is specifically designed to transform types from one library into types for another.
TypeMap performs deep type mapping both statically (within the type system) and at runtime. As a rule, if a type cannot be mapped during traversal, the library function returns a never representation specific to the library being mapped for.
TypeBox
Use the TypeBox function to map a parameter into a TypeBox type.
import { TypeBox } from '@sinclair/typemap'
const A = TypeBox(t.Number()) // const A: TNumber (TypeBox)
const B = TypeBox(v.string()) // const B: TString (Valibot)
const C = TypeBox(z.boolean()) // const C: TBoolean (Zod)
const D = TypeBox('string[]') // const D: TArray<TString> (Syntax)
Valibot
Use the Valibot function to map the parameter into a Valibot type
import { Valibot } from '@sinclair/typemap'
const A = Valibot(t.Number()) // const A: v.NumberSchema (TypeBox)
const B = Valibot(v.string()) // const B: v.StringSchema (Valibot)
const C = Valibot(z.boolean()) // const C: v.BooleanSchema (Zod)
const D = Valibot('string[]') // const D: v.ArraySchema<...> (Syntax)
Zod
Use the Zod function to map the parameter into a Zod type
import { Zod } from '@sinclair/typemap'
const A = Zod(t.Number()) // const A: z.ZodNumber (TypeBox)
const B = Zod(v.string()) // const B: z.ZodString (Valibot)
const C = Zod(z.boolean()) // const C: z.ZodBoolean (Zod)
const D = Zod('string[]') // const D: z.ZodArray<...> (Syntax)
Syntax
TypeMap provides a built in TypeScript syntax parser that can be used to create runtime types. Parsing is implemented at runtime as well as in the TypeScript type system.
Types
Syntax types can be created by passing a string parameter to any ibrary mapping function. TypeMap supports most TypeScript annotation syntax. If the string contains a syntax error, the function will return a never type. (Example)
import { TypeBox } from '@sinclair/typemap'
const T = TypeBox('{ x: 1 }') // const T: TObject<{ x: TLiteral<1> }>
const S = TypeBox(':/') // const S: TNever
Options
Options can be passed on the last parameter of a type. TypeMap will translate known Json Schema keywords into appropriate runtime representations if possible. (Example)
import { TypeBox, Zod } from '@sinclair/typemap'
// const T: TString = { type: 'string', format: 'email' }
const T = TypeBox('string', { format: 'email' })
// const S = z.object({ x: z.number() }).strict()
const S = Zod('{ x: number }', { additionalProperties: false })
Parameters
Types can be parameterized to accept exterior types. (Example)
import { Valibot, Zod } from '@sinclair/typemap'
const T = Valibot('number') // Exterior Type
const S = Zod({ T }, `{ x: T }`) // ZodObject<{ x: ZodNumber }, { ... }>
Generics
Use functions to create generic types (Example)
import { TypeBox, Valibot, Zod } from '@sinclair/typemap'
// Generic Vector Type | Function
const Vector = <T extends object>(T: T) => Valibot({ T }, `{
x: T,
y: T,
z: T
}`)
// Number Vector Type
const NumberVector = Vector(TypeBox('number'))
// String Vector Type
const StringVector = Vector(Zod('string'))
Static
Use Static to infer for library and syntax types
import { type Static } from '@sinclair/typemap'
const T = t.Number() // TypeBox
const V = v.string() // Valibot
const Z = z.boolean() // Zod
const S = 'string[]' // Syntax
type T = Static<typeof T> // number
type V = Static<typeof V> // string
type Z = Static<typeof Z> // boolean
type S = Static<typeof S> // string[]
Compile
Use Compile to build Zod and Valibot on TypeBox validation infrastructure. (Example)
import { Compile, Zod } from '@sinclair/typemap'
// Compile Type
const V = Compile(Zod(`{
x: number,
y: number,
z: number
}`))
// TypeMap: Check Function (Fast)
const R1 = V.Check({ x: 1, y: 2, z: 3 })
// Standard Schema: Validate Function (Fast)
const R2 = V['~standard'].validate({ x: 1, y: 2, z: 3 })
Benchmark
This project manages a small benchmark that compares validation performance using Zod, Valibot, and TypeBox validators. For more comprehensive community benchmarks, refer to the runtime-type-benchmarks project.
Test
Benchmarks are run for the following type.
type T = { x: number, y: string, z: boolean }
Results
Results show the approximate elapsed time to complete the given iterations
┌─────────┬────────────────┬────────────────────┬────────────┬────────────┐
│ (index) │ library │ using │ iterations │ elapsed │
├─────────┼────────────────┼────────────────────┼────────────┼────────────┤
│ 0 │ 'valibot ' │ 'valibot ' │ 10000000 │ '1534 ms ' │
│ 1 │ 'valibot ' │ 'typebox:value ' │ 10000000 │ '1377 ms ' │
│ 2 │ 'valibot ' │ 'typebox:compile ' │ 10000000 │ '46 ms ' │
└─────────┴────────────────┴────────────────────┴────────────┴────────────┘
┌─────────┬────────────────┬────────────────────┬────────────┬────────────┐
│ (index) │ library │ using │ iterations │ elapsed │
├─────────┼────────────────┼────────────────────┼────────────┼────────────┤
│ 0 │ 'zod ' │ 'zod ' │ 10000000 │ '4669 ms ' │
│ 1 │ 'zod ' │ 'typebox:value ' │ 10000000 │ '1359 ms ' │
│ 2 │ 'zod ' │ 'typebox:compile ' │ 10000000 │ '47 ms ' │
└─────────┴────────────────┴────────────────────┴────────────┴────────────┘
Contribute
This project is open to community contributions. Please ensure you submit an open issue before creating a pull request. TypeBox and associated projects preference open community discussion before accepting new features.