39 lines
787 B
TypeScript
39 lines
787 B
TypeScript
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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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if (value === null || value === undefined) {
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throw new Error("ValueObject value cannot be null or undefined");
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}
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this.value = typeof value === "object" ? Object.freeze(value) : value;
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Object.freeze(this);
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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) {
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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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toString(): string {
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return String(this.value);
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}
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clone(): this {
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return Object.create(this);
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}
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}
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