| export function isStableBuild() { | |
| return ( | |
| !process.env.__NEXT_VERSION?.includes('canary') && | |
| !process.env.__NEXT_TEST_MODE && | |
| !process.env.NEXT_PRIVATE_LOCAL_DEV | |
| ) | |
| } | |
| export class CanaryOnlyError extends Error { | |
| constructor(arg: { feature: string } | string) { | |
| if (typeof arg === 'object' && 'feature' in arg) { | |
| super( | |
| `The experimental feature "${arg.feature}" can only be enabled when using the latest canary version of Next.js.` | |
| ) | |
| } else { | |
| super(arg) | |
| } | |
| // This error is meant to interrupt the server start/build process | |
| // but the stack trace isn't meaningful, as it points to internal code. | |
| this.stack = undefined | |
| } | |
| } | |