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import type { BaseNextRequest, BaseNextResponse } from './'
import type { NodeNextRequest, NodeNextResponse } from './node'
import type { WebNextRequest, WebNextResponse } from './web'
/**
* This file provides some helpers that should be used in conjunction with
* explicit environment checks. When combined with the environment checks, it
* will ensure that the correct typings are used as well as enable code
* elimination.
*/
/**
* Type guard to determine if a request is a WebNextRequest. This does not
* actually check the type of the request, but rather the runtime environment.
* It's expected that when the runtime environment is the edge runtime, that any
* base request is a WebNextRequest.
*/
export const isWebNextRequest = (req: BaseNextRequest): req is WebNextRequest =>
process.env.NEXT_RUNTIME === 'edge'
/**
* Type guard to determine if a response is a WebNextResponse. This does not
* actually check the type of the response, but rather the runtime environment.
* It's expected that when the runtime environment is the edge runtime, that any
* base response is a WebNextResponse.
*/
export const isWebNextResponse = (
res: BaseNextResponse
): res is WebNextResponse => process.env.NEXT_RUNTIME === 'edge'
/**
* Type guard to determine if a request is a NodeNextRequest. This does not
* actually check the type of the request, but rather the runtime environment.
* It's expected that when the runtime environment is the node runtime, that any
* base request is a NodeNextRequest.
*/
export const isNodeNextRequest = (
req: BaseNextRequest
): req is NodeNextRequest => process.env.NEXT_RUNTIME !== 'edge'
/**
* Type guard to determine if a response is a NodeNextResponse. This does not
* actually check the type of the response, but rather the runtime environment.
* It's expected that when the runtime environment is the node runtime, that any
* base response is a NodeNextResponse.
*/
export const isNodeNextResponse = (
res: BaseNextResponse
): res is NodeNextResponse => process.env.NEXT_RUNTIME !== 'edge'
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