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kitabcitab/node_modules/next/dist/esm/build/analysis/get-page-static-info.js

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+import { promises as fs } from "fs";
+import { matcher } from "next/dist/compiled/micromatch";
+import { extractExportedConstValue, UnsupportedValueError } from "./extract-const-value";
+import { parseModule } from "./parse-module";
+import * as Log from "../output/log";
+import { SERVER_RUNTIME } from "../../lib/constants";
+import { checkCustomRoutes } from "../../lib/load-custom-routes";
+import { tryToParsePath } from "../../lib/try-to-parse-path";
+import { isAPIRoute } from "../../lib/is-api-route";
+import { isEdgeRuntime } from "../../lib/is-edge-runtime";
+import { RSC_MODULE_TYPES } from "../../shared/lib/constants";
+const CLIENT_MODULE_LABEL = `/* __next_internal_client_entry_do_not_use__ */`;
+export function getRSCModuleType(source) {
+    return source.includes(CLIENT_MODULE_LABEL) ? RSC_MODULE_TYPES.client : RSC_MODULE_TYPES.server;
+}
+/**
+ * Receives a parsed AST from SWC and checks if it belongs to a module that
+ * requires a runtime to be specified. Those are:
+ *   - Modules with `export function getStaticProps | getServerSideProps`
+ *   - Modules with `export { getStaticProps | getServerSideProps } <from ...>`
+ *   - Modules with `export const runtime = ...`
+ */ function checkExports(swcAST) {
+    if (Array.isArray(swcAST == null ? void 0 : swcAST.body)) {
+        try {
+            let runtime;
+            let ssr = false;
+            let ssg = false;
+            for (const node of swcAST.body){
+                var ref11, ref1, ref2, ref3;
+                if (node.type === "ExportDeclaration" && ((ref11 = node.declaration) == null ? void 0 : ref11.type) === "VariableDeclaration") {
+                    var ref4, ref5;
+                    const id = (ref5 = (ref4 = node.declaration) == null ? void 0 : ref4.declarations[0]) == null ? void 0 : ref5.id.value;
+                    if (id === "runtime") {
+                        var ref6, ref7;
+                        runtime = (ref7 = (ref6 = node.declaration) == null ? void 0 : ref6.declarations[0]) == null ? void 0 : ref7.init.value;
+                    }
+                }
+                if (node.type === "ExportDeclaration" && ((ref1 = node.declaration) == null ? void 0 : ref1.type) === "FunctionDeclaration" && [
+                    "getStaticProps",
+                    "getServerSideProps"
+                ].includes((ref2 = node.declaration.identifier) == null ? void 0 : ref2.value)) {
+                    ssg = node.declaration.identifier.value === "getStaticProps";
+                    ssr = node.declaration.identifier.value === "getServerSideProps";
+                }
+                if (node.type === "ExportDeclaration" && ((ref3 = node.declaration) == null ? void 0 : ref3.type) === "VariableDeclaration") {
+                    var ref8, ref9;
+                    const id = (ref9 = (ref8 = node.declaration) == null ? void 0 : ref8.declarations[0]) == null ? void 0 : ref9.id.value;
+                    if ([
+                        "getStaticProps",
+                        "getServerSideProps"
+                    ].includes(id)) {
+                        ssg = id === "getStaticProps";
+                        ssr = id === "getServerSideProps";
+                    }
+                }
+                if (node.type === "ExportNamedDeclaration") {
+                    const values = node.specifiers.map((specifier)=>{
+                        var ref, ref10;
+                        return specifier.type === "ExportSpecifier" && ((ref = specifier.orig) == null ? void 0 : ref.type) === "Identifier" && ((ref10 = specifier.orig) == null ? void 0 : ref10.value);
+                    });
+                    ssg = values.some((value)=>[
+                            "getStaticProps"
+                        ].includes(value));
+                    ssr = values.some((value)=>[
+                            "getServerSideProps"
+                        ].includes(value));
+                }
+            }
+            return {
+                ssr,
+                ssg,
+                runtime
+            };
+        } catch (err) {}
+    }
+    return {
+        ssg: false,
+        ssr: false
+    };
+}
+async function tryToReadFile(filePath, shouldThrow) {
+    try {
+        return await fs.readFile(filePath, {
+            encoding: "utf8"
+        });
+    } catch (error) {
+        if (shouldThrow) {
+            throw error;
+        }
+    }
+}
+function getMiddlewareMatchers(matcherOrMatchers, nextConfig) {
+    let matchers = [];
+    if (Array.isArray(matcherOrMatchers)) {
+        matchers = matcherOrMatchers;
+    } else {
+        matchers.push(matcherOrMatchers);
+    }
+    const { i18n  } = nextConfig;
+    let routes = matchers.map((m)=>typeof m === "string" ? {
+            source: m
+        } : m);
+    // check before we process the routes and after to ensure
+    // they are still valid
+    checkCustomRoutes(routes, "middleware");
+    routes = routes.map((r)=>{
+        let { source  } = r;
+        const isRoot = source === "/";
+        if ((i18n == null ? void 0 : i18n.locales) && r.locale !== false) {
+            source = `/:nextInternalLocale([^/.]{1,})${isRoot ? "" : source}`;
+        }
+        source = `/:nextData(_next/data/[^/]{1,})?${source}${isRoot ? `(${nextConfig.i18n ? "|\\.json|" : ""}/?index|/?index\\.json)?` : "(.json)?"}`;
+        if (nextConfig.basePath) {
+            source = `${nextConfig.basePath}${source}`;
+        }
+        return {
+            ...r,
+            source
+        };
+    });
+    checkCustomRoutes(routes, "middleware");
+    return routes.map((r)=>{
+        const { source , ...rest } = r;
+        const parsedPage = tryToParsePath(source);
+        if (parsedPage.error || !parsedPage.regexStr) {
+            throw new Error(`Invalid source: ${source}`);
+        }
+        return {
+            ...rest,
+            regexp: parsedPage.regexStr
+        };
+    });
+}
+function getMiddlewareConfig(pageFilePath, config, nextConfig) {
+    const result = {};
+    if (config.matcher) {
+        result.matchers = getMiddlewareMatchers(config.matcher, nextConfig);
+    }
+    if (typeof config.regions === "string" || Array.isArray(config.regions)) {
+        result.regions = config.regions;
+    } else if (typeof config.regions !== "undefined") {
+        Log.warn(`The \`regions\` config was ignored: config must be empty, a string or an array of strings. (${pageFilePath})`);
+    }
+    if (config.unstable_allowDynamic) {
+        result.unstable_allowDynamicGlobs = Array.isArray(config.unstable_allowDynamic) ? config.unstable_allowDynamic : [
+            config.unstable_allowDynamic
+        ];
+        for (const glob of result.unstable_allowDynamicGlobs ?? []){
+            try {
+                matcher(glob);
+            } catch (err) {
+                throw new Error(`${pageFilePath} exported 'config.unstable_allowDynamic' contains invalid pattern '${glob}': ${err.message}`);
+            }
+        }
+    }
+    return result;
+}
+let warnedAboutExperimentalEdge = false;
+function warnAboutExperimentalEdge() {
+    if (warnedAboutExperimentalEdge) {
+        return;
+    }
+    Log.warn(`You are using an experimental edge runtime, the API might change.`);
+    warnedAboutExperimentalEdge = true;
+}
+const warnedUnsupportedValueMap = new Map();
+function warnAboutUnsupportedValue(pageFilePath, page, error) {
+    if (warnedUnsupportedValueMap.has(pageFilePath)) {
+        return;
+    }
+    Log.warn(`Next.js can't recognize the exported \`config\` field in ` + (page ? `route "${page}"` : `"${pageFilePath}"`) + ":\n" + error.message + (error.path ? ` at "${error.path}"` : "") + ".\n" + "The default config will be used instead.\n" + "Read More - https://nextjs.org/docs/messages/invalid-page-config");
+    warnedUnsupportedValueMap.set(pageFilePath, true);
+}
+/**
+ * For a given pageFilePath and nextConfig, if the config supports it, this
+ * function will read the file and return the runtime that should be used.
+ * It will look into the file content only if the page *requires* a runtime
+ * to be specified, that is, when gSSP or gSP is used.
+ * Related discussion: https://github.com/vercel/next.js/discussions/34179
+ */ export async function getPageStaticInfo(params) {
+    var ref;
+    const { isDev , pageFilePath , nextConfig , page , pageType  } = params;
+    const fileContent = await tryToReadFile(pageFilePath, !isDev) || "";
+    if (/runtime|getStaticProps|getServerSideProps|export const config/.test(fileContent)) {
+        var ref15;
+        const swcAST = await parseModule(pageFilePath, fileContent);
+        const { ssg , ssr , runtime  } = checkExports(swcAST);
+        const rsc = getRSCModuleType(fileContent);
+        // default / failsafe value for config
+        let config = {};
+        try {
+            config = extractExportedConstValue(swcAST, "config");
+        } catch (e) {
+            if (e instanceof UnsupportedValueError) {
+                warnAboutUnsupportedValue(pageFilePath, page, e);
+            }
+        // `export config` doesn't exist, or other unknown error throw by swc, silence them
+        }
+        // Currently, we use `export const config = { runtime: '...' }` to specify the page runtime.
+        // But in the new app directory, we prefer to use `export const runtime = '...'`
+        // and deprecate the old way. To prevent breaking changes for `pages`, we use the exported config
+        // as the fallback value.
+        let resolvedRuntime = runtime || config.runtime;
+        if (typeof resolvedRuntime !== "undefined" && resolvedRuntime !== SERVER_RUNTIME.nodejs && !isEdgeRuntime(resolvedRuntime)) {
+            const options = Object.values(SERVER_RUNTIME).join(", ");
+            if (typeof resolvedRuntime !== "string") {
+                Log.error(`The \`runtime\` config must be a string. Please leave it empty or choose one of: ${options}`);
+            } else {
+                Log.error(`Provided runtime "${resolvedRuntime}" is not supported. Please leave it empty or choose one of: ${options}`);
+            }
+            if (!isDev) {
+                process.exit(1);
+            }
+        }
+        const requiresServerRuntime = ssr || ssg || pageType === "app";
+        resolvedRuntime = isEdgeRuntime(resolvedRuntime) ? resolvedRuntime : requiresServerRuntime ? resolvedRuntime || ((ref15 = nextConfig.experimental) == null ? void 0 : ref15.runtime) : undefined;
+        if (resolvedRuntime === SERVER_RUNTIME.experimentalEdge) {
+            warnAboutExperimentalEdge();
+        }
+        if (resolvedRuntime === SERVER_RUNTIME.edge && pageType === "pages" && page && !isAPIRoute(page.replace(/^\/pages\//, "/"))) {
+            const message = `Page ${page} provided runtime 'edge', the edge runtime for rendering is currently experimental. Use runtime 'experimental-edge' instead.`;
+            Log.error(message);
+            if (!isDev) {
+                process.exit(1);
+            }
+        }
+        const middlewareConfig = getMiddlewareConfig(page ?? "middleware/edge API route", config, nextConfig);
+        return {
+            ssr,
+            ssg,
+            rsc,
+            ...middlewareConfig && {
+                middleware: middlewareConfig
+            },
+            ...resolvedRuntime && {
+                runtime: resolvedRuntime
+            }
+        };
+    }
+    return {
+        ssr: false,
+        ssg: false,
+        rsc: RSC_MODULE_TYPES.server,
+        runtime: (ref = nextConfig.experimental) == null ? void 0 : ref.runtime
+    };
+}
+
+//# sourceMappingURL=get-page-static-info.js.map