reflect-metadata-util

``
yarn add reflect-metadata-util
`

`ts
import { getClassMetadata, getThisTypeMetadata, setThisTypeMetadata, setClassMetadata, IPropertyKey } from '..';


@Reflect.metadata('kkkk', 1111)
class C1
{
constructor()
{
console.log(constructor);
console.log(1, getClassMetadata('kkkk', this));
console.log(2, getThisTypeMetadata('kkkk', this));

console.log(3, getClassMetadata('kkkk', this, 'constructor'));
console.log(4, getThisTypeMetadata('kkkk', this, 'constructor'));

console.log(---------------);
}

@LOG
@Reflect.metadata('kkkk', 2222)
m1()
{
console.log(1, getClassMetadata('kkkk', this));
console.log(2, getThisTypeMetadata('kkkk', this));

console.log(3, getClassMetadata('kkkk', this, 'm1'));
console.log(4, getThisTypeMetadata('kkkk', this, 'm1'));
}
}

function LOG(target: any, propertyName: IPropertyKey, descriptor: TypedPropertyDescriptor)
{
const old = descriptor.value;
descriptor.value = function (...argv: any)
{
console.log(propertyName);
let ret = old.apply(this, argv)
console.log(---------------);
return ret;
}
}

console.log(C1);

console.log(1, getClassMetadata('kkkk', C1));
console.log(2, getThisTypeMetadata('kkkk', C1));

console.log(3, getClassMetadata('kkkk', C1, 'm1'));
console.log(4, getThisTypeMetadata('kkkk', C1, 'm1'));

console.log(---------------);

(new C1).m1();
`

`
C1
1 1111
2 undefined
3 undefined
4 undefined
---------------
constructor
1 undefined
2 1111
3 undefined
4 undefined
---------------
m1
1 undefined
2 1111
3 2222
4 undefined
---------------
``