TypeMap
Syntax, Compiler and Translation System for Runtime Types
Install
$ npm install @sinclair/typemap --save
Usage
Parse and Compile Types from TypeScript Syntax (Example)
import { Compile } from '@sinclair/typemap'
const result = Compile('string | null').Parse('Hello World')
// │ │ │
// │ │ └─── Parse Value
// │ │
// │ └── TUnion<[TString, TNull]>
// │
// └── const result: string | null = 'Hello World'
Overview
TypeMap is an syntax frontend and compiler backend for the TypeBox, Valibot and Zod libraries. It provides a common TypeScript syntax for type construction, a runtime compiler for high-performance validation and provides type translation from one library to another.
TypeMap is written to be an advanced type translation system for the TypeBox project. It is built to integrate and accelerate remote type libraries on Json Schema compatible infrastructure as well as to integrate TypeBox into remote type library infrastructure via reverse type remapping. This project also provides high-performance validation for frameworks that orientate around the Standard Schema TypeScript interface.
License: MIT
Contents
Example
Use TypeScript syntax to create types for TypeBox, Valibot and Zod (Example)
import { TypeBox, Valibot, Zod } from '@sinclair/typemap'
// Syntax
const S = `{
x: number,
y: number,
z: number
}`
// Runtime Types
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
// }, ...>
Translate 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'
// Zod Type
const Z = z.object({ // const Z: ZodObject<{
x: z.number(), // x: ZodNumber,
y: z.number(), // y: ZodNumber,
z: z.number(), // z: ZodNumber
}) // }>
// Remap and Compile
const C = Compile(Z) // const C: Validator<TObject<{
// x: TNumber,
// y: TNumber,
// z: TNumber
// }>>
// High Throughout Validation
const R = C.Check({ // Iterations: 10_000_000
x: 1, //
y: 2, // Zod : 4000ms (approx)
z: 3 // TypeMap : 40ms (approx)
})
Mapping
TypeMap is designed for runtime type translation. It provides a single mapping functions per library which is used to translate remote types into types specific to that library. All mapping functions make a best attempt to retain semantics from each library. If no translation is possible, these functions return a never representation specific to the library being mapped.
Syntax
Use the Syntax function to translate types into a Syntax string
import { Syntax } from '@sinclair/typemap'
const S = Syntax('string[]') // const S: 'string[]' (Syntax)
const T = Syntax(t.Number()) // const T: 'number' (TypeBox)
const V = Syntax(v.string()) // const V: 'string' (Valibot)
const Z = Syntax(z.boolean()) // const Z: 'boolean' (Zod)
TypeBox
Use the TypeBox function to translate types and syntax into TypeBox types.
import { TypeBox } from '@sinclair/typemap'
const S = TypeBox('string[]') // const S: TArray<TString> (Syntax)
const T = TypeBox(t.Number()) // const T: TNumber (TypeBox)
const V = TypeBox(v.string()) // const V: TString (Valibot)
const Z = TypeBox(z.boolean()) // const Z: TBoolean (Zod)
Valibot
Use the Valibot function to translate types and syntax into Valibot types.
import { Valibot } from '@sinclair/typemap'
const S = Valibot('string[]') // const S: v.ArraySchema<...> (Syntax)
const T = Valibot(t.Number()) // const T: v.NumberSchema (TypeBox)
const V = Valibot(v.string()) // const V: v.StringSchema (Valibot)
const Z = Valibot(z.boolean()) // const Z: v.BooleanSchema (Zod)
Zod
Use the Zod function to translate types and syntax into Zod types.
import { Zod } from '@sinclair/typemap'
const S = Zod('string[]') // const S: z.ZodArray<...> (Syntax)
const T = Zod(t.Number()) // const T: z.ZodNumber (TypeBox)
const V = Zod(v.string()) // const V: z.ZodString (Valibot)
const Z = Zod(z.boolean()) // const Z: z.ZodBoolean (Zod)
Syntax
TypeMap provides a TypeScript syntax parser that can be used to create library types. TypeScript parsing is implemented at runtime as well as in the TypeScript type system. It offers a convenient means of creating cross library types without having to author across multiple type builder API.
Types
Syntax types can be created by passing a string parameter to any library 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 - Syntax Error
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 = TypeBox('string', { // const T: TString = {
format: 'email' // type: 'string',
}) // format: 'email'
// }
const S = Zod('{ x: number }', { // const S = z.object({
additionalProperties: false // x: z.number()
}) // }).strict()
Parameters
Types can be parameterized to accept exterior types. (Example)
import { Valibot, Zod } from '@sinclair/typemap'
const T = Valibot('number') // const T: NumberSchema
// Parameter T auto remapped to target library
const S = Zod({ T }, `{ x: T }`) // const S: ZodObject<{
// x: ZodNumber
// }, { ... }>
Generics
Use parameterized types with functions to create generic types (Example)
import { TypeBox, Valibot, Zod } from '@sinclair/typemap'
// Generic Type
const Vector = <T extends object>(T: T) => TypeBox({ T }, `{
x: T,
y: T,
z: T
}`)
// Instanced Types
const T = Vector(Valibot('number')) // const T: TObject<{
// x: TNumber,
// y: TNumber,
// z: TNumber,
// }>
const S = Vector(Zod('string')) // const S: TObject<{
// x: TString,
// y: TString,
// z: TString,
// }>
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 S = Static<typeof S> // string[]
type T = Static<typeof T> // number
type V = Static<typeof V> // string
type Z = Static<typeof Z> // boolean
TreeShake
TypeMap takes TypeBox, Valibot and Zod on as peer dependencies. If bundling for browser environments, it is recommended to import specific functions to handle specific translations. For example, the following imports a Zod to TypeBox translation. By doing this it will by-pass other library imports cause Valibot to be omitted from the bundle.
import { TypeBoxFromZod } from '@sinclair/typemap' // Include TypeBox & Zod, Tree Shake Valibot
import * as z from 'zod'
const T = TypeBoxFromZod(z.object({ // const T: TObject<{
x: z.number(), // x: TNumber;
y: z.number(), // y: TNumber;
z: z.number() // z: TNumber;
})) // }>
Compile
Use the Compile function to compile Zod and Valibot on TypeBox validation infrastructure. (Example)
import { Compile, Zod } from '@sinclair/typemap'
// Compile Validator From Zod
const validator = Compile(Zod(`{
x: number,
y: number,
z: number
}`))
const R1 = validator.Check({ x: 1, y: 2, z: 3 })
// Standard Schema
//
// ... which should have been named 'Standard Validator'
const R2 = validator['~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.