Update: 更新 Web USB

common/modules/web-modules/microbit/board-id.js

@@ -0,0 +1,66 @@
+(() => {
+
+/**
+ * (c) 2021, Micro:bit Educational Foundation and contributors
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+/**
+ * Validates micro:bit board IDs.
+ */
+class BoardId {
+
+    static v1Normalized = new BoardId(0x9900);
+    static v2Normalized = new BoardId(0x9903);
+
+    constructor(id) {
+        this.id = id;
+        if (!this.isV1() && !this.isV2()) {
+            throw new Error(`Could not recognise the Board ID ${id.toString(16)}`);
+        }
+    }
+
+    isV1() {
+        return this.id === 0x9900 || this.id === 0x9901;
+    }
+
+    isV2() {
+        return (
+            this.id === 0x9903 ||
+            this.id === 0x9904 ||
+            this.id === 0x9905 ||
+            this.id === 0x9906
+        );
+    }
+
+    /**
+     * Return the board ID using the default ID for the board type.
+     * Used to integrate with MicropythonFsHex.
+     */
+    normalize() {
+        return this.isV1() ? BoardId.v1Normalized : BoardId.v2Normalized;
+    }
+
+    /**
+     * toString matches the input to parse.
+     *
+     * @returns the ID as a string.
+     */
+    toString() {
+        return this.id.toString(16);
+    }
+
+    /**
+     * @param value The ID as a hex string with no 0x prefix (e.g. 9900).
+     * @returns the valid board ID
+     * @throws if the ID isn't known.
+     */
+    static parse(value) {
+        return new BoardId(parseInt(value, 16));
+    }
+}
+
+window.BoardId = BoardId;
+
+})();