80 lines
2.9 KiB
JavaScript
Executable File
80 lines
2.9 KiB
JavaScript
Executable File
/**
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* Describes the different fallback modes that a given page can have.
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*/ export var FallbackMode = /*#__PURE__*/ function(FallbackMode) {
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/**
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* A BLOCKING_STATIC_RENDER fallback will block the request until the page is
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* generated. No fallback page will be rendered, and users will have to wait
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* to render the page.
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*/ FallbackMode["BLOCKING_STATIC_RENDER"] = "BLOCKING_STATIC_RENDER";
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/**
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* When set to PRERENDER, a fallback page will be sent to users in place of
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* forcing them to wait for the page to be generated. This allows the user to
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* see a rendered page earlier.
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*/ FallbackMode["PRERENDER"] = "PRERENDER";
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/**
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* When set to NOT_FOUND, pages that are not already prerendered will result
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* in a not found response.
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*/ FallbackMode["NOT_FOUND"] = "NOT_FOUND";
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return FallbackMode;
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}({});
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/**
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* Parses the fallback field from the prerender manifest.
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*
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* @param fallbackField The fallback field from the prerender manifest.
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* @returns The fallback mode.
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*/ export function parseFallbackField(fallbackField) {
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if (typeof fallbackField === 'string') {
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return "PRERENDER";
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} else if (fallbackField === null) {
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return "BLOCKING_STATIC_RENDER";
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} else if (fallbackField === false) {
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return "NOT_FOUND";
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} else if (fallbackField === undefined) {
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return undefined;
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} else {
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throw Object.defineProperty(new Error(`Invalid fallback option: ${fallbackField}. Fallback option must be a string, null, undefined, or false.`), "__NEXT_ERROR_CODE", {
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value: "E285",
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enumerable: false,
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configurable: true
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});
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}
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}
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export function fallbackModeToFallbackField(fallback, page) {
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switch(fallback){
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case "BLOCKING_STATIC_RENDER":
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return null;
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case "NOT_FOUND":
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return false;
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case "PRERENDER":
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if (!page) {
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throw Object.defineProperty(new Error(`Invariant: expected a page to be provided when fallback mode is "${fallback}"`), "__NEXT_ERROR_CODE", {
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value: "E422",
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enumerable: false,
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configurable: true
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});
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}
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return page;
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default:
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throw Object.defineProperty(new Error(`Invalid fallback mode: ${fallback}`), "__NEXT_ERROR_CODE", {
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value: "E254",
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enumerable: false,
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configurable: true
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});
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}
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}
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/**
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* Parses the fallback from the static paths result.
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*
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* @param result The result from the static paths function.
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* @returns The fallback mode.
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*/ export function parseStaticPathsResult(result) {
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if (result === true) {
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return "PRERENDER";
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} else if (result === 'blocking') {
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return "BLOCKING_STATIC_RENDER";
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} else {
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return "NOT_FOUND";
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}
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}
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//# sourceMappingURL=fallback.js.map
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