jsGiven/jsGiven

// @flow
import { Stage } from './Stage';
import {
  getStageMetadataStoreProvider,
  type StageMetadataStoreProvider,
} from './stage-metadata-store';
import { checkIsFunction } from './checks';

const storeProvider: StageMetadataStoreProvider<
  string
> = getStageMetadataStoreProvider('@Hidden');

export function Hidden(target: any, key: string, descriptor: any): any {
  checkIsFunction(
    target[key],
    `@Hidden decorator can only be applied to methods: '${key}' is not a method.`
  );
  storeProvider.getStoreFromTarget(target).addProperty(key);
  return { ...descriptor, writable: true };
}
Hidden.addHiddenStep = (stageClass: Class<Stage>, property: string): void => {
  checkIsFunction(
    // $FlowIgnore
    stageClass.prototype[property],
    `Hidden.addHiddenStep() can only be applied to methods: '${property}' is not a method.`
  );
  storeProvider.getStoreFromStageClass(stageClass).addProperty(property);
};

export function isHiddenStep(stage: Stage, stepName: string): boolean {
  const steps = storeProvider.getStoreFromTarget(stage).getProperties();
  return steps.includes(stepName);
}