ddd-value-object-immutability

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Keywords: ddd value object immutability, ddd, ESLint rule, JavaScript, TypeScript

ESLint Rule: ddd-value-object-immutability with LLM-optimized suggestions and auto-fix capabilities.

Quick Summary

Aspect	Details
Severity	Error (code quality)
Auto-Fix	❌ No
Category	Modularity
ESLint MCP	✅ Optimized for ESLint MCP integration
Best For	Production applications
Suggestions	✅ 4 available

No configuration options available.

// Example of incorrect usage

// Example of correct usage

// eslint.config.mjs
export default [
  {
    rules: {
      'architecture/ddd-value-object-immutability': 'error',
    },
  },
];

🚨 ddd value object immutability | Description | MEDIUM
   Fix: Suggestion | Reference

The following patterns are not detected due to static analysis limitations:

Why: Static analysis cannot trace values stored in variables or passed through function parameters.

// ❌ NOT DETECTED - Value from variable
const value = externalSource();
processValue(value); // Variable origin not tracked

Mitigation: Implement runtime validation and review code manually. Consider using TypeScript branded types for validated inputs.

Why: When values come from imports, the rule cannot analyze their origin or construction.

// ❌ NOT DETECTED - Value from import
import { getValue } from './helpers';
processValue(getValue()); // Cross-file not tracked

Mitigation: Ensure imported values follow the same constraints. Use TypeScript for type safety.