Internal Operations

Internal operations are a list of internal operations only available for providers.

Their purpose is to either reduce the provider code size or access direct memory manipulation.

INFO

In the ast nodes, all internal operations have a # in their ty field (even state machines).

Internal_R_Trig

import {Internal_R_Trig} from "@vifjs/language-builder/internal/operations";

Do a rising edge.

The constructor has only one parameter which is a boolean reference.

Internal_R_Trig extends Operation<Bool> so you use it directly in your block operations,

import {Bool} from "#primitives"
import {Internal_R_Trig} from "@vifjs/language-builder/internal/operations";

const AnyBool = new Bool()

const RTrig = new Internal_R_Trig(AnyBool)

Internal_F_Trig

import {Internal_F_Trig} from "@vifjs/language-builder/internal/operations";

Same behavior as Internal_R_Trig except it is a falling edge.

import {Bool} from "#primitives"
import {Internal_F_Trig} from "@vifjs/language-builder/internal/operations";

const AnyBool = new Bool()

const RTrig = new Internal_F_Trig(AnyBool)

Internal_Reset

import {Internal_Reset} from "@vifjs/language-builder/internal/operations";

Force a primitive reference to be reset.

If the user had defined a default value, the primitive will fallback to this default value.

WARNING

Be really careful when using Internal_Reset as it is highly permissive and might lead to unexpected behavior.

import {Bool} from "#primitives"
import {Fb} from "#pou"
import {Internal_Reset} from "@vifjs/language-builder/internal/operations";

const MyFb = new Fb({
    interface: {
        static: {
            "Test": new Bool(true)
        }
    },
    body() {
        // Will reset back to true (since user defined true as default value).
        // Pointless here, but still a good example
        return [new Internal_Reset(this.static.Test)]
    }
})