Initial commit - Event Planner application

node_modules/strtok3/lib/stream/WebStreamDefaultReader.js

@@ -0,0 +1,62 @@
+import { EndOfStreamError } from './Errors.js';
+import { AbstractStreamReader } from "./AbstractStreamReader.js";
+export class WebStreamDefaultReader extends AbstractStreamReader {
+    constructor(reader) {
+        super();
+        this.reader = reader;
+        this.buffer = null; // Internal buffer to store excess data
+    }
+    /**
+     * Copy chunk to target, and store the remainder in this.buffer
+     */
+    writeChunk(target, chunk) {
+        const written = Math.min(chunk.length, target.length);
+        target.set(chunk.subarray(0, written));
+        // Adjust the remainder of the buffer
+        if (written < chunk.length) {
+            this.buffer = chunk.subarray(written);
+        }
+        else {
+            this.buffer = null;
+        }
+        return written;
+    }
+    /**
+     * Read from stream
+     * @param buffer - Target Uint8Array (or Buffer) to store data read from stream in
+     * @param mayBeLess - If true, may fill the buffer partially
+     * @protected Bytes read
+     */
+    async readFromStream(buffer, mayBeLess) {
+        if (buffer.length === 0)
+            return 0;
+        let totalBytesRead = 0;
+        // Serve from the internal buffer first
+        if (this.buffer) {
+            totalBytesRead += this.writeChunk(buffer, this.buffer);
+        }
+        // Continue reading from the stream if more data is needed
+        while (totalBytesRead < buffer.length && !this.endOfStream) {
+            const result = await this.reader.read();
+            if (result.done) {
+                this.endOfStream = true;
+                break;
+            }
+            if (result.value) {
+                totalBytesRead += this.writeChunk(buffer.subarray(totalBytesRead), result.value);
+            }
+        }
+        if (!mayBeLess && totalBytesRead === 0 && this.endOfStream) {
+            throw new EndOfStreamError();
+        }
+        return totalBytesRead;
+    }
+    abort() {
+        this.interrupted = true;
+        return this.reader.cancel();
+    }
+    async close() {
+        await this.abort();
+        this.reader.releaseLock();
+    }
+}