Function get_diagnostic

lib/assert.ts:64–85

()

// Explicitly export for testing purposes - not part of the public API
export function get_diagnostic() {
    const e = new Error();
    const trace = parse(e);
    if (trace.length >= 4) {
        const invoker_frame = trace[3];
        if (invoker_frame.fileName && invoker_frame.lineNumber) {
            // Just out of an abundance of caution...
            const relative = check_path(ce_base_directory, removeFileProtocol(invoker_frame.fileName));
            if (relative) {
                try {
                    const file = fs.readFileSync(invoker_frame.fileName, 'utf8');
                    const lines = file.split('\n');
                    return {
                        file: relative,
                        line: invoker_frame.lineNumber,
                        src: lines[invoker_frame.lineNumber - 1].trim(),
                    };
                } catch {}
            }
        }
    }
}

function fail(fail_message: string, user_message: string | undefined, args: any[]): never {
    // Assertions will look like: