first pointcutdefinition implementation

pointCutDefinition.js

class PointCutDefinition {
    /**
    TODO
    **/
    decorateTargets(decorator) {
        this.decorateMethods(decorator);
    }

    decorateMethods(decorator) {
        this.targetClasses
            .map(targetClass => targetClass.prototype)
            .forEach(prototype => {
                const targetMethods = this.getTargetMethods(targetClass);
                targetMethods.forEach(targetMethod => {
                    prototype[targetMethod.name] = decorator(targetMethod)
                })
            });
    }
}