Function validateArgs

Check the arguments passed to a decorator function are in the form of class decorator or not.

Use in the decorator callback functions only.

WARNING

This is an outdated ECMAScript decorators proposal.

Source: packages/library/src/legacy/ClassDecorators.ts#L167

Import

import { Classes } from '@litert/decorator/legacy';

Access this function as Classes.validateArgs().

Signature

export function validateArgs(
    args: unknown[],
): args is Parameters<tLoc.ICallbackFn>;

Parameters

• Parameter args

  The arguments passed to the decorator callback.

Return Value

See the signature for the exact return type.

Examples

import { Classes } from '@litert/decorator/legacy';

function decorator(...args: any[]): void {
    if (!Classes.validateArgs(args)) {
        throw new TypeError('Invalid decorator usage.');
    }

    // Arguments are now narrowed to Classes.ICallbackFn parameters.
}