SnowLuma v2.4.2 source snapshot

packages/proton/src/runtime.ts

@@ -0,0 +1,69 @@
+import { packageName } from './package.js';
+
+function uncompiled(operation: string): never {
+    throw new Error(
+        `${operation}<T>() was not transformed by the ${packageName} Vite plugin. Add the plugin from ${packageName}/vite to your build.`,
+    );
+}
+
+export function protobuf_encode<T>(_value: T): Uint8Array {
+    return uncompiled('protobuf_encode');
+}
+
+export function protobuf_decode<T>(_bytes: Uint8Array): T {
+    return uncompiled('protobuf_decode');
+}
+
+export interface ProtobufUnknownField {
+    fieldNumber: number;
+    wireType: number;
+    count: number;
+    totalByteLength: number;
+}
+
+export interface ProtobufUnknownFieldMetadata {
+    fields: readonly ProtobufUnknownField[];
+    totalOccurrences: number;
+    omittedOccurrences: number;
+    omittedByteLength: number;
+}
+
+const PROTOBUF_UNKNOWN_FIELDS = Symbol.for('snowluma.proton.unknownFields');
+const EMPTY_UNKNOWN_FIELD_METADATA: ProtobufUnknownFieldMetadata = Object.freeze({
+    fields: Object.freeze([]),
+    totalOccurrences: 0,
+    omittedOccurrences: 0,
+    omittedByteLength: 0,
+});
+
+/** Unknown wire tags retained by generated decoders. The symbol-backed
+ * metadata is non-enumerable, so decoded object shapes and re-encoding remain
+ * unchanged while protocol boundaries can make schema drift observable. */
+export function protobuf_getUnknownFields(value: unknown): readonly ProtobufUnknownField[] {
+    return protobuf_getUnknownFieldMetadata(value).fields;
+}
+
+export function protobuf_getUnknownFieldMetadata(value: unknown): ProtobufUnknownFieldMetadata {
+    if (typeof value !== 'object' || value === null) {
+        return EMPTY_UNKNOWN_FIELD_METADATA;
+    }
+
+    const metadata = (value as Record<PropertyKey, unknown>)[PROTOBUF_UNKNOWN_FIELDS];
+
+    if (typeof metadata !== 'object' || metadata === null) {
+        return EMPTY_UNKNOWN_FIELD_METADATA;
+    }
+
+    const candidate = metadata as Partial<ProtobufUnknownFieldMetadata>;
+
+    if (!Array.isArray(candidate.fields)) {
+        return EMPTY_UNKNOWN_FIELD_METADATA;
+    }
+
+    return {
+        fields: candidate.fields,
+        totalOccurrences: candidate.totalOccurrences ?? candidate.fields.length,
+        omittedOccurrences: candidate.omittedOccurrences ?? 0,
+        omittedByteLength: candidate.omittedByteLength ?? 0,
+    };
+}