NativeScript/nativescript-core/globals/decorators.ts

export function Deprecated(
	target: Object,
	key?: string | symbol,
	descriptor?: any
) {
	if (descriptor) {
		const originalMethod = descriptor.value;

		descriptor.value = function (...args: any[]) {
			console.log(`${key.toString()} is deprecated`);

			return originalMethod.apply(this, args);
		};

		return descriptor;
	} else {
		console.log(
			`${(target && (<any>target).name) || target} is deprecated`
		);

		return target;
	}
}

global.Deprecated = Deprecated;

export function Experimental(
	target: Object,
	key?: string | symbol,
	descriptor?: any
) {
	if (descriptor) {
		const originalMethod = descriptor.value;

		descriptor.value = function (...args: any[]) {
			console.log(`${key.toString()} is experimental`);

			return originalMethod.apply(this, args);
		};

		return descriptor;
	} else {
		console.log(
			`${(target && (<any>target).name) || target} is experimental`
		);

		return target;
	}
}

global.Experimental = Experimental;