traceperf/dist/esm/browser.d.ts

High-performance function execution tracking and monitoring for Node.js

/**
 * Browser-compatible version of TracePerf
 *
 * This file provides a browser-compatible version of TracePerf that can be used
 * in React, Next.js, or other frontend applications.
 */
import { ILoggerConfig, LogMode, ITrackOptions } from './types';
export declare const TrackingMode: {
    PERFORMANCE: string;
    BALANCED: string;
    DETAILED: string;
    DEBUG: string;
};
/**
 * Browser-compatible performance monitoring
 */
declare class BrowserPerformanceMonitor {
    private _timers;
    private _defaultThreshold;
    constructor(options?: {
        defaultThreshold?: number;
    });
    startTimer(label: string): string;
    endTimer(id: string): number;
    isBottleneck(duration: number, threshold?: number): boolean;
    /**
     * Get memory usage from browser performance API
     * @returns Memory usage object with heap metrics or undefined if not available
     */
    getMemoryUsage(): {
        heapUsed: number;
        heapTotal: number;
        external: number;
        rss: number;
    } | undefined;
    /**
     * Calculate memory difference
     * @param start - Starting memory usage
     * @returns Memory difference in bytes
     */
    getMemoryDiff(start: {
        heapUsed: number;
    }): number;
    now(): number;
    generateSuggestion(functionName: string, duration: number, memoryUsage?: number): string;
}
/**
 * Browser-compatible execution tracker for tracking function calls and generating flow charts
 */
declare class BrowserExecutionTracker {
    private _callStack;
    private _executions;
    private _currentExecution;
    private _defaultThreshold;
    private _globalScope;
    private _trackedFunctions;
    private _performanceMonitor;
    /**
     * Create a new BrowserExecutionTracker instance
     *
     * @param options - Tracker options
     */
    constructor(options?: {
        defaultThreshold?: number;
    });
    /**
     * Generate a performance optimization suggestion based on execution duration
     *
     * @param name - Function name
     * @param duration - Execution duration in ms
     * @returns Optimization suggestion
     */
    private generateSuggestion;
    /**
     * Track the execution of a function
     *
     * @param fn - The function to track
     * @param options - Options for tracking
     * @returns The return value of the tracked function
     */
    track<T>(fn: () => T, options?: any): T;
    /**
     * Create a trackable version of a function
     *
     * This is a helper method to create a tracked version of a function
     * that can be used for nested function tracking.
     *
     * @param fn - The function to make trackable
     * @param options - Options for tracking
     * @returns A tracked version of the function
     */
    createTrackable<T extends (...args: any[]) => any>(fn: T, options?: Omit<ITrackOptions, 'label'> & {
        label?: string;
    }): (...args: Parameters<T>) => ReturnType<T>;
    /**
     * Get the current call stack
     *
     * @returns The current call stack
     */
    getCallStack(): string[];
    /**
     * Generate a visual representation of the execution flow
     *
     * @returns ASCII flow chart of the execution
     */
    generateFlowChart(): string;
    /**
     * Prepare execution data for the flow chart
     *
     * @param executions - The execution records to prepare
     * @returns A list of execution data
     */
    private prepareExecutionData;
    /**
     * Add children to the result list
     *
     * @param children - The children to add
     * @param result - The result list
     */
    private addChildrenToResult;
    /**
     * Format memory size for display
     * @param bytes Memory usage in bytes
     * @returns Formatted string
     */
    private formatMemorySize;
    /**
     * Clear all execution records
     */
    clear(): void;
}
/**
 * Browser-compatible logger
 */
declare class BrowserLogger {
    private _mode;
    private _indentLevel;
    private _executionTracker;
    private _performanceMonitor;
    private _trackingMode;
    constructor(config?: Partial<ILoggerConfig>);
    info(message: string | object, ...args: any[]): void;
    warn(message: string | object, ...args: any[]): void;
    error(message: string | object, ...args: any[]): void;
    debug(message: string | object, ...args: any[]): void;
    group(label: string): void;
    groupEnd(): void;
    setMode(mode: LogMode): void;
    getMode(): LogMode;
    /**
     * Set the tracking mode
     * @param mode Tracking mode from TrackingMode enum
     * @returns This instance for chaining
     */
    setTrackingMode(mode: string): BrowserLogger;
    /**
     * Get the current tracking mode
     * @returns Current tracking mode
     */
    getTrackingMode(): string;
    track<T>(fn: () => T, options?: ITrackOptions): T;
    /**
     * Create a trackable version of a function
     *
     * This is a helper method to create a tracked version of a function
     * that can be used for nested function tracking.
     *
     * @param fn - The function to make trackable
     * @param options - Options for tracking
     * @returns A tracked version of the function
     */
    createTrackable<T extends (...args: any[]) => any>(fn: T, options?: Omit<ITrackOptions, 'label'> & {
        label?: string;
    }): (...args: Parameters<T>) => ReturnType<T>;
    private log;
}
/**
 * Create a browser-compatible logger instance
 * @param config Configuration options
 * @returns Browser logger instance
 */
export declare function createBrowserLogger(config?: Partial<ILoggerConfig>): BrowserLogger;
/**
 * Create a browser-compatible TracePerf instance
 * Alias of createBrowserLogger for API consistency with Node.js version
 * @param config Configuration options
 * @returns Browser logger instance
 */
export declare function createTracePerf(config?: Partial<ILoggerConfig>): BrowserLogger;
declare const browserLogger: BrowserLogger;
export default browserLogger;
export { BrowserLogger, BrowserPerformanceMonitor, BrowserExecutionTracker };