from_realms.js - mozsearch

Enable keyboard shortcuts

for (var constructor of anyTypedArrayConstructors) {

    if (typeof newGlobal !== 'function')

        break;

    // G[constructor.name].from, where G is any global, produces an array whose prototype

    // is G[constructor.name].prototype.

    var g = newGlobal();

    var ga = g[constructor.name].from([1, 2, 3]);

    assertEq(ga instanceof g[constructor.name], true);

    // %TypedArray%.from can be applied to a constructor from another realm.

    var p = constructor.from.call(g[constructor.name], [1, 2, 3]);

    assertEq(p instanceof g[constructor.name], true);

    var q = g[constructor.name].from.call(constructor, [3, 4, 5]);

    assertEq(q instanceof constructor, true);

    // The default 'this' value received by a non-strict mapping function is

    // that function's global, not %TypedArray%.from's global or the caller's global.

    var h = newGlobal(), result = undefined;

    h.mainGlobal = this;

    h.eval("function f() { mainGlobal.result = this; }");

    g[constructor.name].from.call(constructor, [5, 6, 7], h.f);

    // (Give each global in the test a name, for better error messages.  But use

    // globalName, because window.name is complicated.)

    this.globalName = "main";

    g.globalName = "g";

    h.globalName = "h";

    assertEq(result.globalName, "h");

if (typeof reportCompare === "function")

    reportCompare(true, true);