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node_modules/next/dist/esm/shared/lib/server-reference-info.js

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+/**
+ * Extracts info about the server reference for the given server reference ID by
+ * parsing the first byte of the hex-encoded ID.
+ *
+ * ```
+ * Bit positions: [7]      [6] [5] [4] [3] [2] [1]  [0]
+ * Bits:          typeBit  argMask                  restArgs
+ * ```
+ *
+ * If the `typeBit` is `1` the server reference represents a `"use cache"`
+ * function, otherwise a server action.
+ *
+ * The `argMask` encodes whether the function uses the argument at the
+ * respective position.
+ *
+ * The `restArgs` bit indicates whether the function uses a rest parameter. It's
+ * also set to 1 if the function has more than 6 args.
+ *
+ * @param id hex-encoded server reference ID
+ */ export function extractInfoFromServerReferenceId(id) {
+    const infoByte = parseInt(id.slice(0, 2), 16);
+    const typeBit = infoByte >> 7 & 0x1;
+    const argMask = infoByte >> 1 & 0x3f;
+    const restArgs = infoByte & 0x1;
+    const usedArgs = Array(6);
+    for(let index = 0; index < 6; index++){
+        const bitPosition = 5 - index;
+        const bit = argMask >> bitPosition & 0x1;
+        usedArgs[index] = bit === 1;
+    }
+    return {
+        type: typeBit === 1 ? 'use-cache' : 'server-action',
+        usedArgs: usedArgs,
+        hasRestArgs: restArgs === 1
+    };
+}
+/**
+ * Creates a sparse array containing only the used arguments based on the
+ * provided action info.
+ */ export function omitUnusedArgs(args, info) {
+    const filteredArgs = new Array(args.length);
+    let length = 0;
+    for(let index = 0; index < args.length; index++){
+        if (index < 6 && info.usedArgs[index] || // This assumes that the server reference info byte has the restArgs bit
+        // set to 1 if there are more than 6 args.
+        index >= 6 && info.hasRestArgs) {
+            filteredArgs[index] = args[index];
+            length = index + 1;
+        }
+    }
+    // Trim trailing unused args from the array.
+    filteredArgs.length = length;
+    return filteredArgs;
+}
+
+//# sourceMappingURL=server-reference-info.js.map