mirror of
https://github.com/fluencelabs/assemblyscript
synced 2025-04-26 07:22:21 +00:00
9c770d801e
Essentially creates an unmanaged typed array in memory that one can work with and free again respectively obtain from the AS side. No support for GC or generic arrays yet, and is likely to change substentially once WASM GC becomes a thing.
49 lines
1.7 KiB
JavaScript
49 lines
1.7 KiB
JavaScript
var fs = require("fs");
|
|
var assert = require("assert");
|
|
var inspect = require("util").inspect;
|
|
|
|
var loader = require("..");
|
|
var buffer = fs.readFileSync(__dirname + "/build/untouched.wasm");
|
|
var module = loader.instantiateBuffer(buffer, {});
|
|
|
|
console.log(inspect(module, true, 100, true));
|
|
|
|
// should inherit the usual utility
|
|
var proto = Object.getPrototypeOf(module);
|
|
assert(proto.I8 instanceof Int8Array);
|
|
assert(proto.U8 instanceof Uint8Array);
|
|
assert(proto.I16 instanceof Int16Array);
|
|
assert(proto.U16 instanceof Uint16Array);
|
|
assert(proto.I32 instanceof Int32Array);
|
|
assert(proto.U32 instanceof Uint32Array);
|
|
assert(proto.F32 instanceof Float32Array);
|
|
assert(proto.F64 instanceof Float64Array);
|
|
assert(typeof proto.newString === "function");
|
|
assert(typeof proto.getString === "function");
|
|
|
|
// should export memory
|
|
assert(module.memory instanceof WebAssembly.Memory);
|
|
assert(typeof module.memory.free === "function");
|
|
|
|
// should be able to get an exported string
|
|
assert.strictEqual(module.getString(module.COLOR), "red");
|
|
|
|
// should be able to allocate and work with a new string
|
|
var str = "Hello world!𤭢";
|
|
var ptr = module.newString(str);
|
|
assert.strictEqual(module.getString(ptr), str);
|
|
assert.strictEqual(module.strlen(ptr), str.length);
|
|
|
|
// should be able to allocate a typed array and sum up its values
|
|
var arr = [1, 2, 3, 4, 5, 0x7fffffff];
|
|
ptr = module.newArray(new Int32Array(arr));
|
|
assert.strictEqual(module.sum(ptr), arr.reduce((a, b) => a + b, 0) | 0);
|
|
|
|
// should be able to get a view on an internal typed array
|
|
assert.deepEqual(module.getArray(Int32Array, ptr), arr);
|
|
|
|
// should be able to free and reuse the space of an internal typed array
|
|
module.freeArray(ptr);
|
|
var ptr2 = module.newArray(new Int32Array(arr));
|
|
assert.strictEqual(ptr, ptr2);
|