Paniclog Method

The paniclog method returns persisted panic records as a structured array. Each record contains bounded diagnostic context and VM state. Avoid placing sensitive values in the diagnostic context.

Using TypeScript

For TypeScript, call .paniclog() on a VM configured with the Debug capability. The method returns the records array and throws an error if the records cannot be retrieved or parsed.

Code

import { Capability, LightVM } from 'lightvm';

const vm = new LightVM({ caps: [Capability.Debug] });
const records = vm.paniclog();

console.log(records);

Using Rust

In Rust, call .paniclog() on a VM configured with the Debug capability. The method returns Result<serde_json::Value, VMError>, where the JSON value is an array of panic records.

Code

use lightvm::LightVM;
use lightvm::types::{capability::Capability, vmconfig::VmConfig};

fn main() -> Result<(), Box<dyn std::error::Error>> {
  let vm = LightVM::new(VmConfig {
    caps: vec![Capability::Debug],
    ..Default::default()
  });
  let records = vm.paniclog()?;

  println!("{records}");
  Ok(())
}

INFO

Capability Required: Debug

WARNING

The .paniclog() method is unavailable in WebAssembly builds.