+
+ const encodeUint8Array = (inputArray) => {
+ const cArrayPointer = wasm.TS_malloc(inputArray.length + 4);
+ const arrayLengthView = new Uint32Array(memory.buffer, cArrayPointer, 1);
+ arrayLengthView[0] = inputArray.length;
+ const arrayMemoryView = new Uint8Array(memory.buffer, cArrayPointer + 4, inputArray.length);
+ arrayMemoryView.set(inputArray);
+ return cArrayPointer;
+ }
+
+ const encodeUint32Array = (inputArray) => {
+ const cArrayPointer = wasm.TS_malloc((inputArray.length + 1) * 4);
+ const arrayMemoryView = new Uint32Array(memory.buffer, cArrayPointer, inputArray.length);
+ arrayMemoryView[0] = inputArray.length;
+ arrayMemoryView.set(inputArray, 1);
+ return cArrayPointer;
+ }
+
+ const getArrayLength = (arrayPointer) => {
+ const arraySizeViewer = new Uint32Array(
+ memory.buffer, // value
+ arrayPointer, // offset
+ 1 // one int
+ );
+ return arraySizeViewer[0];
+ }
+ const decodeUint8Array = (arrayPointer, free = true) => {
+ const arraySize = getArrayLength(arrayPointer);
+ const actualArrayViewer = new Uint8Array(
+ memory.buffer, // value
+ arrayPointer + 4, // offset (ignoring length bytes)
+ arraySize // uint8 count
+ );
+ // Clone the contents, TODO: In the future we should wrap the Viewer in a class that
+ // will free the underlying memory when it becomes unreachable instead of copying here.
+ const actualArray = actualArrayViewer.slice(0, arraySize);
+ if (free) {
+ wasm.TS_free(arrayPointer);
+ }
+ return actualArray;
+ }
+