@eklabdev/blingts4/dist/decorators/field/access.js

A comprehensive TypeScript decorators library implementing Stage 2 decorators for TS 4.9+

/**
 * Auto-generates a getter for a field
 */
export function Getter() {
    return function (target, propertyKey) {
        const fieldName = propertyKey;
        const capitalizedName = fieldName.charAt(0).toUpperCase() + fieldName.slice(1);
        const getterName = `get${capitalizedName}`;
        // Add the getter method to the class prototype
        Object.defineProperty(target.constructor.prototype, getterName, {
            value: function () {
                return this[fieldName];
            },
            enumerable: false,
            configurable: true,
            writable: true,
        });
    };
}
/**
 * Auto-generates a setter for a field
 */
export function Setter() {
    return function (target, propertyKey) {
        const fieldName = propertyKey;
        const capitalizedName = fieldName.charAt(0).toUpperCase() + fieldName.slice(1);
        const setterName = `set${capitalizedName}`;
        // Add the setter method to the class prototype
        Object.defineProperty(target.constructor.prototype, setterName, {
            value: function (value) {
                this[fieldName] = value;
                return this;
            },
            enumerable: false,
            configurable: true,
            writable: true,
        });
    };
}
/**
 * Auto-generates a builder method for a field
 */
export function Builder() {
    return function (target, propertyKey) {
        const fieldName = propertyKey;
        const capitalizedName = fieldName.charAt(0).toUpperCase() + fieldName.slice(1);
        const builderName = `with${capitalizedName}`;
        // Add the builder method to the class prototype
        Object.defineProperty(target.constructor.prototype, builderName, {
            value: function (value) {
                this[fieldName] = value;
                return this;
            },
            enumerable: false,
            configurable: true,
            writable: true,
        });
    };
}
/**
 * class Person {
  @Getter()
  name: string = '';

  @Setter()
  age: number = 0;

  @Builder()
  address: string = '';

  constructor(name: string, age: number, address: string) {
    this.name = name;
    this.age = age;
    this.address = address;
  }
}

// Type augmentation for the decorated fields
type PersonWithHelpers = Person &
  WithGetter<Person, 'name'> &
  WithSetter<Person, 'age'> &
  WithBuilder<Person, 'address'>;

// Usage with type casting
const person = new Person('John', 30, '123 Main St') as PersonWithHelpers;
 */