Factories

If you plan to create a provider, you need to import all the types you want from @vifjs/language-builder and reexports them in your package.json.

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To facilitate this task, vif provides factory methods for the most complex types.

Primitives

All primitive types are available at @vifjs/language-builder/types/primitives

import {
    Bool,
    UInt,
    Int
    // ...
} from '@vifjs/language-builder/types/primitives'

Example with Int

Import the Int type first.

import {
    Int as Int_
} from '@vifjs/language-builder/types/primitives'

Then, you redefine the Int type with your attributes and export it.

You define both the value and the type so Typescript can infer the type properly.

See more here.

export const Int = Int_<S7>
export type Int = Int_<S7>

Full code

import {
    Int as Int_
} from '@vifjs/language-builder/types/primitives'

export interface S7 {
    setPoint?: boolean,
    externalAccessible?: boolean,
    externalVisible?: boolean,
    externalWritable?: boolean
}

export const Int = Int_<S7>
export type Int = Int_<S7>

Complex types

All complex types have built-in factory functions which starts with Expose that allow you to inject your own attributes.

Example with Fb

First import the ExposeFb function from @vifjs/language-builder.

import {ExposeFb} from "@vifjs/language-builder/pou";

Then re-export it.

import {ExposeFb} from "@vifjs/language-builder/pou";

export default ExposeFb()

// Or

export const Fb = ExposeFb()

To inject your own attributes, use the generic type of any Expose function.

import {ExposeFb} from "@vifjs/language-builder/pou";

export default ExposeFb<{
    remanent?: boolean
}>()