		@@ -7,4 +7,19 @@ "use strict";
		exports.DEFAULT_FEATURE_FLAGS = void 0;
		exports.getFeatureFlag = getFeatureFlag;
		exports.setFeatureFlags = setFeatureFlags;
		// We need to do these gymnastics as we don't want flow-to-ts to touch DEFAULT_FEATURE_FLAGS,
		// but we want to export FeatureFlags for Flow
		const DEFAULT_FEATURE_FLAGS = exports.DEFAULT_FEATURE_FLAGS = {
		exampleFeature: false
		};
		exampleFeature: false,
		useWatchmanWatcher: false,
		importRetry: false
		};
		let featureFlagValues = {
		...DEFAULT_FEATURE_FLAGS
		};
		function setFeatureFlags(flags) {
		featureFlagValues = flags;
		}
		function getFeatureFlag(flagName) {
		return featureFlagValues[flagName];
		}

package.json

		{
		"name": "@parcel/feature-flags",
		"version": "2.12.1-nightly.3142+40c370f09",
		"description": "Blazing fast, zero configuration web application bundler",
		"version": "2.13.0",
		"description": "Provides internal feature-flags for the parcel codebase.",
		"license": "MIT",
		@@ -19,7 +19,11 @@ "publishConfig": {
		"source": "src/index.js",
		"types": "index.d.ts",
		"types": "lib/types.d.ts",
		"scripts": {
		"build-ts": "mkdir -p lib && flow-to-ts src/types.js > lib/types.d.ts",
		"check-ts": "tsc --noEmit lib/types.d.ts"
		},
		"engines": {
		"node": ">= 16.0.0"
		},
		"gitHead": "40c370f09a1c4b7eee5a6ad2b1b74fb95a04f389"
		"gitHead": "a53f8f3ba1025c7ea8653e9719e0a61ef9717079"
		}

src/index.js

		// @flow strict

		export type FeatureFlags = {\|
		// This feature flag mostly exists to test the feature flag system, and doesn't have any build/runtime effect
		+exampleFeature: boolean,
		\|};
		import type {FeatureFlags as _FeatureFlags} from './types';
		// We need to do these gymnastics as we don't want flow-to-ts to touch DEFAULT_FEATURE_FLAGS,
		// but we want to export FeatureFlags for Flow
		export type FeatureFlags = _FeatureFlags;

		export const DEFAULT_FEATURE_FLAGS: FeatureFlags = {
		exampleFeature: false,
		useWatchmanWatcher: false,
		importRetry: false,
		};

		let featureFlagValues: FeatureFlags = {...DEFAULT_FEATURE_FLAGS};

		export function setFeatureFlags(flags: FeatureFlags) {
		featureFlagValues = flags;
		}

		export function getFeatureFlag(flagName: $Keys<FeatureFlags>): boolean {
		return featureFlagValues[flagName];
		}

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