@naturalcycles/nodejs-lib
Version:
Standard library for Node.js
53 lines • 1.9 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
const js_lib_1 = require("@naturalcycles/js-lib");
const util_1 = require("util");
/**
* Transforms ANY to human-readable string (via util.inspect mainly).
* Safe (no error throwing).
*
* Correclty prints Errors, AppErrors, ErrorObjects: error.message + \n + inspect(error.data)
*
* Enforces max length (default to 10_000, pass 0 to skip it).
*
* Logs numbers as-is, e.g: `6`.
* Logs strings as-is (without single quotes around, unlike default util.inspect behavior).
* Otherwise - just uses util.inspect() with reasonable defaults.
*
* Returns 'empty_string' if empty string is passed.
* Returns 'undefined' if undefined is passed (default util.inspect behavior).
*/
function inspectAny(obj, opt = {}) {
let s;
if (obj instanceof Error) {
// Stack includes message
s = (!opt.noErrorStack && obj.stack) || [obj === null || obj === void 0 ? void 0 : obj.name, obj.message].filter(Boolean).join(': ');
if (obj instanceof js_lib_1.AppError) {
s = [s, Object.keys(obj.data).length > 0 && inspectAny(obj.data, opt)]
.filter(Boolean)
.join('\n');
}
}
else if (js_lib_1._isErrorObject(obj)) {
s = [obj.message, Object.keys(obj.data).length > 0 && inspectAny(obj.data, opt)]
.filter(Boolean)
.join('\n');
}
else if (typeof obj === 'string') {
s = obj.trim() || 'empty_string';
}
else {
s = util_1.inspect(obj, {
breakLength: 80,
depth: 6,
...opt,
});
}
// Handle maxLen
if (opt.maxLen && s.length > opt.maxLen) {
s = s.substr(0, opt.maxLen) + `... ${Math.ceil(s.length / 1024)} KB message truncated`;
}
return s;
}
exports.inspectAny = inspectAny;
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