deprecate.ts

// deprecate a set of properties. Handy e.g. to see bad access in angular directives where TypeScript doesn't help you
class FooClass { ... }

function deprecate(klass: any, props: string[]) {
    props.forEach(prop => {
        Object.defineProperty(klass.prototype, prop, {
            get: () => { debugger; console.log('BAD READ', prop) },
            set: () => console.log('BAD WRITE', prop)
        })
    })
}

deprecate(FooClass, ['bar', 'attribute']);