prompt-helper/dist/libs/standardizeError.js

A CLI tool to help you create and manage prompts for AI models.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.standardizeError = standardizeError;
function standardizeError(err, prefix) {
    // 1) Normalize to an Error instance
    let base;
    if (err instanceof Error) {
        base = err;
    }
    else if (typeof err === 'string') {
        base = new Error(err);
    }
    else if (err !== null && typeof err === 'object') {
        // Try to pull out a message property, else safe‑stringify
        let text;
        const maybeMsg = err.message;
        if (typeof maybeMsg === 'string') {
            text = maybeMsg;
        }
        else {
            try {
                text = JSON.stringify(err);
            }
            catch {
                text = Object.prototype.toString.call(err);
            }
        }
        base = new Error(text);
    }
    else {
        base = new Error(String(err));
    }
    // 2) Build up the pieces of our new message
    const parts = [base.name];
    if (base.code != null) {
        parts.push(`[${base.code}]`);
    }
    if (base.cause != null) {
        parts.push(`cause: ${String(base.cause)}`);
    }
    if (base.message) {
        parts.push(`– ${base.message}`);
    }
    const coreMessage = parts.join(' ');
    // 3) Prepend optional prefix
    const fullMessage = prefix ? `${prefix} → ${coreMessage}` : coreMessage;
    // 4) Wrap (Node 16+) or mutate to preserve stack & metadata
    let result;
    try {
        // This will set result.cause = base and keep base.stack under the hood
        // @ts-expect-error This should be correct, but TypeScript is not happy
        result = new Error(fullMessage, { cause: base });
        if (base.code != null) {
            result.code = base.code;
        }
    }
    catch {
        // Fallback if the environment doesn’t support the second argument
        base.message = fullMessage;
        result = base;
    }
    return result;
}
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