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node_modules/@grpc/grpc-js/build/src/call-interface.js

@@ -0,0 +1,84 @@
+"use strict";
+/*
+ * Copyright 2022 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.InterceptingListenerImpl = void 0;
+exports.isInterceptingListener = isInterceptingListener;
+function isInterceptingListener(listener) {
+    return (listener.onReceiveMetadata !== undefined &&
+        listener.onReceiveMetadata.length === 1);
+}
+class InterceptingListenerImpl {
+    constructor(listener, nextListener) {
+        this.listener = listener;
+        this.nextListener = nextListener;
+        this.processingMetadata = false;
+        this.hasPendingMessage = false;
+        this.processingMessage = false;
+        this.pendingStatus = null;
+    }
+    processPendingMessage() {
+        if (this.hasPendingMessage) {
+            this.nextListener.onReceiveMessage(this.pendingMessage);
+            this.pendingMessage = null;
+            this.hasPendingMessage = false;
+        }
+    }
+    processPendingStatus() {
+        if (this.pendingStatus) {
+            this.nextListener.onReceiveStatus(this.pendingStatus);
+        }
+    }
+    onReceiveMetadata(metadata) {
+        this.processingMetadata = true;
+        this.listener.onReceiveMetadata(metadata, metadata => {
+            this.processingMetadata = false;
+            this.nextListener.onReceiveMetadata(metadata);
+            this.processPendingMessage();
+            this.processPendingStatus();
+        });
+    }
+    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+    onReceiveMessage(message) {
+        /* If this listener processes messages asynchronously, the last message may
+         * be reordered with respect to the status */
+        this.processingMessage = true;
+        this.listener.onReceiveMessage(message, msg => {
+            this.processingMessage = false;
+            if (this.processingMetadata) {
+                this.pendingMessage = msg;
+                this.hasPendingMessage = true;
+            }
+            else {
+                this.nextListener.onReceiveMessage(msg);
+                this.processPendingStatus();
+            }
+        });
+    }
+    onReceiveStatus(status) {
+        this.listener.onReceiveStatus(status, processedStatus => {
+            if (this.processingMetadata || this.processingMessage) {
+                this.pendingStatus = processedStatus;
+            }
+            else {
+                this.nextListener.onReceiveStatus(processedStatus);
+            }
+        });
+    }
+}
+exports.InterceptingListenerImpl = InterceptingListenerImpl;
+//# sourceMappingURL=call-interface.js.map