Function validateArgs

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

Use in the decorator callback functions only.

Source: packages/library/src/modern/StaticSetterDecorators.ts#L87

Import

import { StaticSetters } from '@litert/decorator';
import { StaticSetters as StaticSettersFromModern } from '@litert/decorator/modern';

Access this function as StaticSetters.validateArgs().

Signature

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

Parameters

• Parameter args

  The arguments passed to the decorator callback.

Return Value

See the signature for the exact return type.

Examples

import { StaticSetters } from '@litert/decorator';

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

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