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* Development Tools for Coherent.js
* Provides debugging, profiling, and development utilities
* Only active in development environment for zero production overhead
*
* DevTools never mutates the Coherent instance it is given (ESM namespace
* objects are frozen, so patching `render` threw): it wraps it instead —
* render through `devtools.render()` / `devtools.createComponent()`.
* It installs no process-level handlers unless asked to, and never keeps
* the process alive or exits it.
*/
import { performanceMonitor, validateComponent, isCoherentObject } from '@coherent.js/core';
const LOCAL_HOSTNAMES = new Set(['localhost', '127.0.0.1', '[::1]', '::1']);
/**
* Main DevTools class
*/
export class DevTools {
/**
* @param {Object} [coherentInstance] - Object exposing `render` (and optionally
* `createComponent` / `cache`), e.g. `import * as coherent from '@coherent.js/core'`.
* @param {Object} [options]
* @param {boolean} [options.enabled] - Force on or off; defaults to {@link DevTools#shouldEnable}.
* @param {number} [options.maxEntries=100] - Cap on retained warnings and errors each.
* @param {boolean} [options.captureConsoleErrors=true] - Record console.error calls.
* @param {boolean} [options.trackUnhandledRejections=false] - Record unhandled promise
* rejections (Node). They still crash the process as they would without DevTools.
* @param {string} [options.hotReloadUrl] - Browser only: WebSocket URL of a dev server
* sending `component-updated` / `full-reload` messages. No connection is made without it.
* @param {boolean} [options.globalHelpers=true] - Expose `$inspect`, `$history`, … globally.
*/
constructor(coherentInstance = null, options = {}) {
this.coherent = coherentInstance;
this.options = {
maxEntries: 100,
captureConsoleErrors: true,
trackUnhandledRejections: false,
hotReloadUrl: null,
globalHelpers: true,
...options
};
this.isEnabled = typeof options.enabled === 'boolean' ? options.enabled : this.shouldEnable();
this.renderHistory = [];
this.componentRegistry = new Map();
this.warnings = [];
this.errors = [];
this.hotReloadEnabled = false;
this._teardown = [];
if (this.isEnabled) {
this.initialize();
}
}
/**
* Check if dev tools should be enabled: NODE_ENV=development in Node, a
* localhost page in the browser. Anything else (a query parameter on a
* production host, say) needs the explicit `enabled: true` option.
*/
shouldEnable() {
// Only enable in development
if (typeof process !== 'undefined' && process?.env) {
return process.env.NODE_ENV === 'development';
}
// Browser development detection
Eif (typeof window !== 'undefined' && window.location) {
return LOCAL_HOSTNAMES.has(window.location.hostname);
}
return false;
}
/**
* Initialize dev tools
*/
initialize() {
console.log('🛠️ Coherent.js Dev Tools Enabled');
Eif (this.options.globalHelpers) {
this.setupGlobalHelpers();
}
this.setupErrorHandling();
this.setupHotReload();
// Browser-specific setup
Iif (typeof window !== 'undefined' && typeof document !== 'undefined') {
this.setupBrowserDevTools();
}
}
/**
* Undo everything initialize() installed: global helpers, the
* console.error hook, the unhandled-rejection listener, the hot-reload
* socket and the browser panel.
*/
destroy() {
while (this._teardown.length) {
try {
this._teardown.pop()();
} catch {
// keep tearing down the rest
}
}
}
/**
* Append to a bounded list (warnings, errors), dropping the oldest.
*/
record(list, entry) {
list.push(entry);
const max = Math.max(1, this.options.maxEntries);
if (list.length > max) {
list.splice(0, list.length - max);
}
return entry;
}
/**
* Render through the wrapped Coherent instance, recording timing,
* validation warnings and errors.
*/
render(component, context = {}, options = {}) {
const render = this.coherent?.render;
if (typeof render !== 'function') {
throw new TypeError('DevTools.render() needs a Coherent instance with a render() function: createDevTools(coherent)');
}
if (!this.isEnabled) {
return render.call(this.coherent, component, context, options);
}
const renderStart = performance.now();
const renderId = this.generateRenderId();
try {
// Pre-render validation and logging
this.preRenderAnalysis(component, context, renderId);
// Actual render
const result = render.call(this.coherent, component, context, {
...options,
_devRenderId: renderId
});
// Post-render analysis
const renderTime = performance.now() - renderStart;
this.postRenderAnalysis(component, result, renderTime, renderId);
return result;
} catch (_error) {
this.handleRenderError(_error, component, context, renderId);
throw _error;
}
}
/**
* createComponent() of the wrapped instance, registering the result for
* inspection.
*/
createComponent(config) {
const create = this.coherent?.createComponent;
if (typeof create !== 'function') {
throw new TypeError('DevTools.createComponent() needs a Coherent instance with createComponent()');
}
const component = create.call(this.coherent, config);
if (this.isEnabled) {
this.componentRegistry.set(config?.name || 'anonymous', {
config,
component,
registeredAt: Date.now()
});
}
return component;
}
/**
* Set up global helper functions
*/
setupGlobalHelpers() {
const helpers = {
// Inspect any component
$inspect: (component) => this.inspectComponent(component),
// Get render history
$history: () => this.renderHistory,
// Get performance stats
$perf: () => this.getPerformanceInsights(),
// Validate component structure
$validate: (component) => this.validateComponent(component),
// Get component registry
$registry: () => Array.from(this.componentRegistry.entries()),
// Clear dev data
$clear: () => this.clearDevData(),
// Enable/disable features
$toggle: (feature) => this.toggleFeature(feature),
// Get warnings and errors
$issues: () => ({ warnings: this.warnings, errors: this.errors })
};
// Expose helpers globally
const target = globalThis;
const previous = Object.fromEntries(Object.keys(helpers).map((key) => [key, target[key]]));
Object.assign(target, helpers);
this._teardown.push(() => {
for (const [key, value] of Object.entries(previous)) {
if (value === undefined) delete target[key];
else target[key] = value;
}
});
}
/**
* Pre-render analysis and validation
*/
preRenderAnalysis(component, context, renderId) {
// Component structure validation
const validation = this.deepValidateComponent(component);
Iif (!validation.isValid) {
this.record(this.warnings, {
type: 'validation',
message: validation.message,
component: this.serializeComponent(component),
renderId,
timestamp: Date.now()
});
}
// Performance warnings
const complexity = this.analyzeComplexity(component);
if (complexity > 1000) {
this.record(this.warnings, {
type: 'performance',
message: `High complexity component detected (${complexity} nodes)`,
renderId,
timestamp: Date.now()
});
}
// Context analysis
this.analyzeContext(context ?? {}, renderId);
}
/**
* Post-render analysis
*/
postRenderAnalysis(component, result, renderTime, renderId) {
// Store render in history
const renderRecord = {
id: renderId,
timestamp: Date.now(),
component: this.serializeComponent(component),
renderTime,
outputSize: typeof result === 'string' ? result.length : 0,
complexity: this.analyzeComplexity(component)
};
this.renderHistory.push(renderRecord);
// Keep only last 50 renders
Iif (this.renderHistory.length > 50) {
this.renderHistory.shift();
}
// Performance analysis
if (renderTime > 10) {
this.record(this.warnings, {
type: 'performance',
message: `Slow render detected: ${renderTime.toFixed(2)}ms`,
renderId,
timestamp: Date.now()
});
}
// Log render in development
Eif (renderTime > 1) {
console.log(`🔄 Render ${renderId}: ${renderTime.toFixed(2)}ms`);
}
}
/**
* Deep component validation
*/
deepValidateComponent(component, path = 'root', depth = 0) {
Iif (depth > 100) {
return {
isValid: false,
message: `Component nesting too deep at ${path}`
};
}
// Basic validation
try {
validateComponent(component);
} catch (_error) {
return {
isValid: false,
message: `Invalid component at ${path}: ${_error.message}`
};
}
// Recursive validation for objects and arrays
if (Array.isArray(component)) {
for (let i = 0; i < component.length; i++) {
const childValidation = this.deepValidateComponent(
component[i],
`${path}[${i}]`,
depth + 1
);
Iif (!childValidation.isValid) {
return childValidation;
}
}
E} else if (isCoherentObject(component)) {
for (const [tag, props] of Object.entries(component)) {
if (props && typeof props === 'object' && props.children) {
const childValidation = this.deepValidateComponent(
props.children,
`${path}.${tag}.children`,
depth + 1
);
Iif (!childValidation.isValid) {
return childValidation;
}
}
}
}
return { isValid: true };
}
/**
* Analyze component complexity
*/
analyzeComplexity(component, depth = 0) {
Iif (depth > 100) return 1000; // Prevent infinite recursion
Iif (typeof component === 'string' || typeof component === 'number') {
return 1;
}
if (Array.isArray(component)) {
return component.reduce((sum, child) =>
sum + this.analyzeComplexity(child, depth + 1), 0);
}
Eif (isCoherentObject(component)) {
let complexity = 1;
for (const [, props] of Object.entries(component)) {
Eif (props && typeof props === 'object') {
if (props.children) {
complexity += this.analyzeComplexity(props.children, depth + 1);
}
Iif (typeof props.text === 'function') {
complexity += 2; // Functions add complexity
}
}
}
return complexity;
}
return 1;
}
/**
* Context analysis
*/
analyzeContext(context, renderId) {
let contextSize;
try {
contextSize = JSON.stringify(context)?.length ?? 0;
} catch (_error) {
// Circular reference check
if (/circular/i.test(_error.message)) {
this.record(this.warnings, {
type: 'context',
message: 'Circular reference detected in context',
renderId,
timestamp: Date.now()
});
}
return;
}
// Large context warning
Iif (contextSize > 10000) {
this.record(this.warnings, {
type: 'context',
message: `Large context object: ${contextSize} characters`,
renderId,
timestamp: Date.now()
});
}
}
/**
* Component inspector
*/
inspectComponent(component) {
return {
type: this.getComponentType(component),
complexity: this.analyzeComplexity(component),
validation: this.deepValidateComponent(component),
structure: this.visualizeStructure(component),
serialized: this.serializeComponent(component),
recommendations: this.getOptimizationRecommendations(component)
};
}
/**
* Get component type
*/
getComponentType(component) {
if (typeof component === 'string') return 'text';
if (typeof component === 'function') return 'function';
if (Array.isArray(component)) return 'array';
if (isCoherentObject(component)) return 'element';
return 'unknown';
}
/**
* Visualize component structure
*/
visualizeStructure(component, depth = 0, maxDepth = 5) {
if (depth > maxDepth) return '...';
const indent = ' '.repeat(depth);
if (typeof component === 'string') {
return `${indent}"${component.substring(0, 20)}${component.length > 20 ? '...' : ''}"`;
}
if (Array.isArray(component)) {
const items = component.slice(0, 3).map(child =>
this.visualizeStructure(child, depth + 1, maxDepth)
);
const more = component.length > 3 ? `${indent} ...${component.length - 3} more` : '';
return `${indent}[\n${items.join('\n')}${more ? `\n${ more}` : ''}\n${indent}]`;
}
if (isCoherentObject(component)) {
const entries = Object.entries(component).slice(0, 3);
const elements = entries.map(([tag, props]) => {
let result = `${indent}<${tag}`;
if (props && props.children) {
result += `>\n${this.visualizeStructure(props.children, depth + 1, maxDepth)}\n${indent}</${tag}>`;
} else if (props && props.text) {
result += `>${props.text}</${tag}>`;
} else {
result += ' />';
}
return result;
});
return elements.join('\n');
}
return `${indent}${typeof component}`;
}
/**
* Get optimization recommendations
*/
getOptimizationRecommendations(component) {
const recommendations = [];
const complexity = this.analyzeComplexity(component);
if (complexity > 500) {
recommendations.push({
type: 'complexity',
message: 'Consider breaking down this component into smaller parts',
priority: 'high'
});
}
// Check for repeated patterns
const serialized = JSON.stringify(component);
const patterns = this.findRepeatedPatterns(serialized);
if (patterns.length > 0) {
recommendations.push({
type: 'caching',
message: 'Consider extracting repeated patterns into cached components',
priority: 'medium',
patterns: patterns.slice(0, 3)
});
}
return recommendations;
}
/**
* Find repeated patterns in component
*/
findRepeatedPatterns(serialized) {
const patterns = [];
const minPatternLength = 20;
for (let i = 0; i < serialized.length - minPatternLength; i++) {
for (let len = minPatternLength; len <= 100 && i + len < serialized.length; len++) {
const pattern = serialized.substring(i, i + len);
const occurrences = (serialized.match(new RegExp(this.escapeRegex(pattern), 'g')) || []).length;
if (occurrences > 2) {
patterns.push({ pattern: `${pattern.substring(0, 50) }...`, occurrences });
break; // Found a pattern starting at this position
}
}
}
return patterns.sort((a, b) => b.occurrences - a.occurrences);
}
/**
* Escape regex special characters
*/
escapeRegex(string) {
return string.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
}
/**
* Record errors. console.error calls are captured (and still printed);
* unhandled rejections only when `trackUnhandledRejections` is set, and
* then they still crash the process exactly as they would without us.
*/
setupErrorHandling() {
Eif (this.options.captureConsoleErrors) {
const originalConsoleError = console.error;
const hooked = (...args) => {
// Log to dev tools
this.record(this.errors, {
type: 'console',
message: args.map((arg) => String(arg)).join(' '),
timestamp: Date.now(),
stack: new Error().stack
});
// Call original
originalConsoleError.apply(console, args);
};
console.error = hooked;
this._teardown.push(() => {
Eif (console.error === hooked) console.error = originalConsoleError;
});
}
// Unhandled rejection handler (Node.js). Adding a listener turns off
// Node's default crash, so rethrow unless someone else handles it.
Iif (this.options.trackUnhandledRejections && typeof process !== 'undefined' && typeof process.on === 'function') {
const listener = (reason) => {
this.record(this.errors, {
type: 'unhandled-rejection',
message: reason instanceof Error ? reason.message : String(reason),
stack: reason instanceof Error ? reason.stack : undefined,
timestamp: Date.now()
});
if (process.listenerCount('unhandledRejection') === 1) {
throw reason instanceof Error
? reason
: new Error(`Unhandled promise rejection: ${String(reason)}`);
}
};
process.on('unhandledRejection', listener);
this._teardown.push(() => process.off('unhandledRejection', listener));
}
// Browser error handler
if (typeof window !== 'undefined' && typeof window.addEventListener === 'function') {
const listener = (event) => {
this.record(this.errors, {
type: 'browser-error',
message: event.message,
filename: event.filename,
lineno: event.lineno,
colno: event.colno,
timestamp: Date.now()
});
};
window.addEventListener('error', listener);
this._teardown.push(() => window.removeEventListener('error', listener));
}
}
/**
* Handle render errors specifically
*/
handleRenderError(_error, component, context, renderId) {
this.record(this.errors, {
type: 'render-error',
message: _error.message,
stack: _error.stack,
component: this.serializeComponent(component),
context: Object.keys(context),
renderId,
timestamp: Date.now()
});
console.error(`🚨 Render Error in ${renderId}:`, _error.message);
console.error('Component:', this.serializeComponent(component));
}
/**
* Connect to a hot-reload WebSocket, only when `hotReloadUrl` is set
* (browser only).
*/
setupHotReload() {
if (this.options.hotReloadUrl && typeof window !== 'undefined' && 'WebSocket' in window) {
this.setupBrowserHotReload(this.options.hotReloadUrl);
}
}
/**
* Browser hot reload setup
*/
setupBrowserHotReload(url) {
// Connect to development server WebSocket
try {
const ws = new window.WebSocket(url);
ws.onmessage = (event) => {
let data;
try {
data = JSON.parse(event.data);
} catch {
return;
}
if (data.type === 'component-updated') {
console.log('🔄 Component updated:', data.componentName);
this.handleComponentUpdate(data);
} else if (data.type === 'full-reload') {
window.location.reload();
}
};
ws.onopen = () => {
console.log('🔗 Connected to Coherent dev server');
this.hotReloadEnabled = true;
};
ws.onclose = () => {
console.log('🔌 Disconnected from dev server');
this.hotReloadEnabled = false;
};
this._teardown.push(() => ws.close());
} catch {
// Dev server not available
}
}
/**
* Handle component updates
*/
handleComponentUpdate(updateData) {
// Clear related caches
if (this.coherent?.cache?.invalidatePattern) {
this.coherent.cache.invalidatePattern(updateData.componentName);
}
// Update component registry
this.componentRegistry.set(updateData.componentName, {
...updateData,
lastUpdated: Date.now()
});
// Trigger re-render if needed
if (typeof window !== 'undefined' && window.location.search.includes('auto-reload=true')) {
window.location.reload();
}
}
/**
* Setup browser-specific dev tools
*/
setupBrowserDevTools() {
// Add dev tools panel to page
this.createDevPanel();
// Add keyboard shortcuts
const onKeyDown = (e) => {
// Ctrl+Shift+C = Toggle dev panel
if (e.ctrlKey && e.shiftKey && e.code === 'KeyC') {
this.toggleDevPanel();
e.preventDefault();
}
// Ctrl+Shift+P = Performance report
if (e.ctrlKey && e.shiftKey && e.code === 'KeyP') {
console.table(this.getPerformanceInsights());
e.preventDefault();
}
};
document.addEventListener('keydown', onKeyDown);
this._teardown.push(() => document.removeEventListener('keydown', onKeyDown));
}
/**
* Create development panel in browser
*/
createDevPanel() {
// Create floating dev panel
const panel = document.createElement('div');
panel.id = 'coherent-dev-panel';
panel.style.cssText = `
position: fixed;
top: 10px;
right: 10px;
width: 300px;
background: #1a1a1a;
color: #fff;
font-family: monospace;
font-size: 12px;
border-radius: 8px;
box-shadow: 0 4px 20px rgba(0,0,0,0.5);
z-index: 999999;
display: none;
max-height: 80vh;
overflow-y: auto;
`;
document.body.appendChild(panel);
this.devPanel = panel;
this._teardown.push(() => {
panel.remove();
this.devPanel = null;
});
this.updateDevPanel();
}
/**
* Toggle dev panel visibility
*/
toggleDevPanel() {
if (this.devPanel) {
const isVisible = this.devPanel.style.display === 'block';
this.devPanel.style.display = isVisible ? 'none' : 'block';
if (!isVisible) {
this.updateDevPanel();
}
}
}
/**
* Update dev panel content
*/
updateDevPanel() {
if (!this.devPanel) return;
const stats = this.getPerformanceInsights();
const recentRenders = this.renderHistory.slice(-5);
const recentWarnings = this.warnings.slice(-3);
this.devPanel.innerHTML = `
<div style="padding: 15px; border-bottom: 1px solid #333;">
<strong>🛠️ Coherent.js Dev Tools</strong>
<button onclick="this.parentElement.parentElement.style.display='none'"
style="float: right; background: none; border: none; color: #fff; cursor: pointer;">×</button>
</div>
<div style="padding: 10px;">
<h4 style="margin: 0 0 10px 0; color: #4CAF50;">Performance</h4>
<div style="font-size: 11px;">
<div>Avg Render: ${stats.averageRenderTime || 0}ms</div>
<div>Cache Hit Rate: ${((stats.cacheHits || 0) / Math.max(stats.totalRenders || 1, 1) * 100).toFixed(1)}%</div>
<div>Memory Usage: ${(performance.memory?.usedJSHeapSize / 1024 / 1024 || 0).toFixed(1)}MB</div>
</div>
</div>
<div style="padding: 10px;">
<h4 style="margin: 0 0 10px 0; color: #2196F3;">Recent Renders</h4>
${recentRenders.map(r => `
<div style="font-size: 10px; margin-bottom: 5px; padding: 3px; background: #333; border-radius: 3px;">
${r.id}: ${r.renderTime.toFixed(1)}ms (${r.complexity} nodes)
</div>
`).join('')}
</div>
${recentWarnings.length > 0 ? `
<div style="padding: 10px;">
<h4 style="margin: 0 0 10px 0; color: #FF9800;">Warnings</h4>
${recentWarnings.map(w => `
<div style="font-size: 10px; margin-bottom: 5px; padding: 3px; background: #4a2c0a; border-radius: 3px; color: #FFB74D;">
${w.type}: ${w.message}
</div>
`).join('')}
</div>
` : ''}
<div style="padding: 10px; font-size: 10px; color: #888;">
Press Ctrl+Shift+P for performance details
</div>
`;
}
/**
* Print development summary
*/
printDevSummary() {
console.log('\n🛠️ Coherent.js Development Summary');
console.log('=================================');
console.log(`Total Renders: ${this.renderHistory.length}`);
console.log(`Total Warnings: ${this.warnings.length}`);
console.log(`Total Errors: ${this.errors.length}`);
if (this.renderHistory.length > 0) {
const avgTime = this.renderHistory.reduce((sum, r) => sum + r.renderTime, 0) / this.renderHistory.length;
console.log(`Average Render Time: ${avgTime.toFixed(2)}ms`);
}
console.log('=================================\n');
}
/**
* Get performance insights
*/
getPerformanceInsights() {
const insights = {
totalRenders: this.renderHistory.length,
averageRenderTime: 0,
slowestRender: null,
fastestRender: null,
cacheHits: 0,
totalWarnings: this.warnings.length,
totalErrors: this.errors.length
};
if (this.renderHistory.length > 0) {
const times = this.renderHistory.map(r => r.renderTime);
insights.averageRenderTime = times.reduce((a, b) => a + b, 0) / times.length;
insights.slowestRender = Math.max(...times);
insights.fastestRender = Math.min(...times);
}
// Get cache stats if available
if (this.coherent?.cache?.getStats) {
const cacheStats = this.coherent.cache.getStats();
insights.cacheHits = cacheStats.hits;
insights.cacheHitRate = cacheStats.hitRate;
}
// Add performance monitor data if available
if (performanceMonitor && performanceMonitor.getStats) {
const perfStats = performanceMonitor.getStats();
insights.performanceMonitorStats = perfStats;
}
return insights;
}
/**
* Utility methods
*/
generateRenderId() {
return `render_${Date.now()}_${Math.random().toString(36).substr(2, 5)}`;
}
serializeComponent(component, maxDepth = 3, currentDepth = 0) {
Iif (currentDepth > maxDepth) return '...';
try {
Iif (typeof component === 'function') {
return `[Function: ${component.name || 'anonymous'}]`;
}
Iif (Array.isArray(component)) {
return component.slice(0, 3).map(c =>
this.serializeComponent(c, maxDepth, currentDepth + 1)
).concat(component.length > 3 ? [`...(${component.length - 3} more)`] : []);
}
Eif (component && typeof component === 'object') {
const serialized = {};
const keys = Object.keys(component).slice(0, 10);
for (const key of keys) {
Iif (key === 'children' && component[key]) {
serialized[key] = this.serializeComponent(component[key], maxDepth, currentDepth + 1);
I} else if (typeof component[key] === 'function') {
serialized[key] = `[Function: ${component[key].name || 'anonymous'}]`;
} else {
serialized[key] = component[key];
}
}
Iif (Object.keys(component).length > 10) {
serialized['...'] = `(${Object.keys(component).length - 10} more properties)`;
}
return serialized;
}
return component;
} catch (_error) {
return `[Serialization Error: ${_error.message}]`;
}
}
clearDevData() {
this.renderHistory = [];
this.warnings = [];
this.errors = [];
this.componentRegistry.clear();
console.log('🧹 Dev data cleared');
}
toggleFeature(feature) {
switch (feature) {
case 'cache':
if (this.coherent?.cache) {
this.coherent.cache.enabled = !this.coherent.cache.enabled;
console.log(`Cache ${this.coherent.cache.enabled ? 'enabled' : 'disabled'}`);
}
break;
case 'monitoring':
if (performanceMonitor) {
performanceMonitor.enabled = !performanceMonitor.enabled;
console.log(`Monitoring ${performanceMonitor.enabled ? 'enabled' : 'disabled'}`);
}
break;
case 'hot-reload':
this.hotReloadEnabled = !this.hotReloadEnabled;
console.log(`Hot reload ${this.hotReloadEnabled ? 'enabled' : 'disabled'}`);
break;
default:
console.log(`Unknown feature: ${feature}`);
}
}
validateComponent(component) {
return this.deepValidateComponent(component);
}
}
/**
* Create a lightweight dev tools instance
*/
export function createDevTools(coherentInstance, options) {
return new DevTools(coherentInstance, options);
}
/**
* Global dev tools utilities (available even when DevTools is disabled)
*/
export const devUtils = {
/**
* Quick component inspection
*/
inspect: (component) => {
console.log('🔍 Component Inspection:');
console.log('Type:', typeof component);
console.log('Structure:', component);
if (isCoherentObject(component)) {
const tags = Object.keys(component);
console.log('Tags:', tags);
for (const tag of tags) {
const props = component[tag];
if (props && typeof props === 'object') {
console.log(`${tag} props:`, Object.keys(props));
}
}
}
},
/**
* Simple validation
*/
validate: (component) => {
try {
validateComponent(component);
console.log('✅ Component is valid');
return true;
} catch (_error) {
console.error('❌ Component validation failed:', _error.message);
return false;
}
},
/**
* Performance timing helper
*/
time: (label, fn) => {
const start = performance.now();
const result = fn();
const end = performance.now();
console.log(`⏱️ ${label}: ${(end - start).toFixed(2)}ms`);
return result;
}
};
export default DevTools;
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