main repo

node_modules/next/dist/esm/build/webpack/loaders/next-flight-css-loader.js

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+/**
+ * For server-side CSS imports, we need to ignore the actual module content but
+ * still trigger the hot-reloading diff mechanism. So here we put the content
+ * inside a comment.
+ */ import crypto from "crypto";
+const NextServerCSSLoader = function(content) {
+    this.cacheable && this.cacheable();
+    const options = this.getOptions();
+    let isCSSModule = options.cssModules;
+    // Only add the checksum during development.
+    if (process.env.NODE_ENV !== "production") {
+        // This check is only for backwards compatibility.
+        // TODO: Remove this in the next major version (next 14)
+        if (isCSSModule === undefined) {
+            this.emitWarning(new Error("No 'cssModules' option was found for the next-flight-css-loader plugin."));
+            isCSSModule = this.resourcePath.match(/\.module\.(css|sass|scss)$/) !== null;
+        }
+        const checksum = crypto.createHash("sha1").update(typeof content === "string" ? Buffer.from(content) : content).digest().toString("hex").substring(0, 12);
+        if (isCSSModule) {
+            return `\
+${content}
+module.exports.__checksum = ${JSON.stringify(checksum)}
+`;
+        }
+        // Server CSS imports are always available for HMR, so we attach
+        // `module.hot.accept()` to the generated module.
+        const hmrCode = "if (module.hot) { module.hot.accept() }";
+        return `\
+export default ${JSON.stringify(checksum)}
+${hmrCode}
+`;
+    }
+    return content;
+};
+export default NextServerCSSLoader;
+
+//# sourceMappingURL=next-flight-css-loader.js.map