Add SharedArrayBuffer support (#4689)

JerryScript-DCO-1.0-Signed-off-by: Gergo Csizi csgergo92@gmail.com

tests/jerry/es.next/length-property.js

@@ -30,6 +30,7 @@ var builtin_objects = [
   ReferenceError,
   RegExp,
   Set,
+  SharedArrayBuffer,
   String,
   Symbol,
   SyntaxError,

tests/jerry/es.next/object-prototype-tostring.js

@@ -45,6 +45,17 @@ assert (Object.prototype.toString.call (new ArrayBuffer ()) === "[object myStrin
 ArrayBuffer.prototype[Symbol.toStringTag] = {};
 assert (ArrayBuffer.prototype.toString.call (new ArrayBuffer ()) === "[object Object]");
 
+/* SharedArrayBuffer.prototype @@toStringTag */
+assert (SharedArrayBuffer.prototype[Symbol.toStringTag] === "SharedArrayBuffer");
+assert (Object.prototype.toString.call (new SharedArrayBuffer ()) === "[object SharedArrayBuffer]");
+
+assert (delete SharedArrayBuffer.prototype[Symbol.toStringTag]);
+assert (SharedArrayBuffer.prototype[Symbol.toStringTag] === undefined);
+SharedArrayBuffer.prototype[Symbol.toStringTag] = "myStringTag3";
+assert (Object.prototype.toString.call (new SharedArrayBuffer ()) === "[object myStringTag3]");
+SharedArrayBuffer.prototype[Symbol.toStringTag] = {};
+assert (SharedArrayBuffer.prototype.toString.call (new SharedArrayBuffer ()) === "[object Object]");
+
 /* Promise.prototype @@toStringTag */
 assert (Promise.prototype[Symbol.toStringTag] === "Promise");
 assert (Object.prototype.toString.call (new Promise (function () {})) === "[object Promise]");

tests/jerry/es.next/typedArray-fill.js

@@ -113,22 +113,26 @@ var l = new BigUint64Array([1n, 2n, 3n, 4n, 5n]);
 assert(l.fill(-18446744073709551614n, 3, 5).toString() === '1,2,3,2,2');
 assert(l.fill(18446744073709551614n, 4).toString() === '1,2,3,2,18446744073709551614');
 
+var cd = new SharedArrayBuffer(4);
+var u8array = new Uint8Array(cd);
+assert(u8array.fill(0).toString() === '0,0,0,0');
+
 var invalid = {
   valueOf: function() {
     throw new Error();
   }
 };
 
-var m = new BigInt64Array();
+var n = new BigInt64Array();
 try {
-  m.fill(1n, invalid);
+  n.fill(1n, invalid);
   assert(false)
 } catch (e) {
   assert(e instanceof Error);
 }
 
 try {
-  m.fill(1n, 0, invalid);
+  n.fill(1n, 0, invalid);
   assert(false)
 } catch (e) {
   assert(e instanceof Error);

tests/jerry/es.next/typedArray-subarray.js

@@ -46,3 +46,20 @@ assert(c.subarray(4, 1).toString() === '');
 assert(c.subarray(-1, -4).toString() === '');
 assert(c.subarray(1).subarray(1).toString() === '3,4,5');
 assert(c.subarray(1, 4).subarray(1, 2).toString() === '3');
+
+var cd = new SharedArrayBuffer(28);
+tmp = new Int32Array(cd);
+tmp.set([0, 1, 2, 3, 4, 5, 0]);
+var d = new Int32Array(cd, 4, 5);
+assert(d.subarray().toString() === '1,2,3,4,5');
+assert(d.subarray(3).toString() === '4,5');
+assert(d.subarray(1, 3).toString() === '2,3');
+assert(d.subarray(1, 3).toString() === '2,3');
+assert(d.subarray(-3).toString() === '3,4,5');
+assert(d.subarray(-3, -1).toString() === '3,4');
+assert(d.subarray(3, 2).toString() === '');
+assert(d.subarray(-2, -3).toString() === '');
+assert(d.subarray(4, 1).toString() === '');
+assert(d.subarray(-1, -4).toString() === '');
+assert(d.subarray(1).subarray(1).toString() === '3,4,5');
+assert(d.subarray(1, 4).subarray(1, 2).toString() === '3');