34 lines
776 B
TypeScript
34 lines
776 B
TypeScript
import { shallowEqual } from "shallow-equal-object";
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export abstract class ValueObject<T> {
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protected readonly _value: T;
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protected constructor(value: T) {
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this._value = typeof value === "object" && value !== null ? Object.freeze(value) : value;
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}
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equals(other: ValueObject<T>): boolean {
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if (!(other instanceof ValueObject)) {
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return false;
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}
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if (other._value === undefined || other._value === null) {
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return false;
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}
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return shallowEqual(this._value, other._value);
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}
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getValue(): T {
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return this._value;
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}
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isEmpty(): boolean {
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return this._value === null || this._value === undefined;
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}
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toString(): string {
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return this._value !== null && this._value !== undefined ? String(this._value) : "";
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}
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}
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