Function resizeFileStorage

src/piper.js:1619–1632

(node, newSize)

				if (node.usedBytes > 0) node.contents.set(oldContents.subarray(0, node.usedBytes), 0);
			},
			resizeFileStorage(node, newSize) {
				if (node.usedBytes == newSize) return;
				if (newSize == 0) {
					node.contents = null;
					node.usedBytes = 0;
				} else {
					var oldContents = node.contents;
					node.contents = new Uint8Array(newSize);
					if (oldContents) {
						node.contents.set(oldContents.subarray(0, Math.min(newSize, node.usedBytes)));
					}
					node.usedBytes = newSize;
				}
			},
			node_ops: {
				getattr(node) {
					var attr = {};