@aws-cdk/core
Version:
AWS Cloud Development Kit Core Library
43 lines • 4.76 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.captureStackTrace = void 0;
const debug_1 = require("./debug");
/**
* Captures the current process' stack trace.
*
* Stack traces are often invaluable tools to help diagnose problems, however
* their capture is a rather expensive operation, and the stack traces can be
* large. Consequently, users are stronly advised to condition capturing stack
* traces to specific user opt-in.
*
* Stack traces will only be captured if the `CDK_DEBUG` environment variable
* is set to `'true'` or `1`.
*
* @param below an optional function starting from which stack frames will be
* ignored. Defaults to the `captureStackTrace` function itself.
* @param limit and optional upper bound to the number of stack frames to be
* captured. If not provided, this defaults to
* `Number.MAX_SAFE_INTEGER`, effectively meaning "no limit".
*
* @returns the captured stack trace, as an array of stack frames.
*/
function captureStackTrace(below = captureStackTrace, limit = Number.MAX_SAFE_INTEGER) {
if (!debug_1.debugModeEnabled()) {
return ['stack traces disabled'];
}
const object = {};
const previousLimit = Error.stackTraceLimit;
try {
Error.stackTraceLimit = limit;
Error.captureStackTrace(object, below);
}
finally {
Error.stackTraceLimit = previousLimit;
}
if (!object.stack) {
return [];
}
return object.stack.split('\n').slice(1).map(s => s.replace(/^\s*at\s+/, ''));
}
exports.captureStackTrace = captureStackTrace;
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