Function safeConsoleStringify

apps/sim/stores/terminal/console/utils.ts:43–91

(value: unknown)

 * Safely stringifies terminal data without throwing on circular or non-JSON-safe values.
 */
export function safeConsoleStringify(value: unknown): string {
  const seen = new WeakSet<object>()

  try {
    return (
      JSON.stringify(
        value,
        (_key, currentValue) => {
          if (typeof currentValue === 'bigint') {
            return `${currentValue.toString()}n`
          }

          if (currentValue instanceof Error) {
            return {
              name: currentValue.name,
              message: currentValue.message,
              stack: currentValue.stack,
            }
          }

          if (typeof currentValue === 'function') {
            return `[Function ${currentValue.name || 'anonymous'}]`
          }

          if (typeof currentValue === 'symbol') {
            return currentValue.toString()
          }

          if (typeof currentValue === 'object' && currentValue !== null) {
            if (seen.has(currentValue)) {
              return '[Circular]'
            }

            seen.add(currentValue)
          }

          return currentValue
        },
        2
      ) ?? ''
    )
  } catch {
    try {
      return String(value)
    } catch {
      return '[Unserializable value]'
    }
  }
}

/**
 * Produces a terminal-safe representation of any value.