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var g1 = newGlobal({sameCompartmentAs: this});
var g2 = newGlobal({sameCompartmentAs: g1});
g2.x = g1;
gc();
assertEq(objectGlobal(Math), this);
assertEq(objectGlobal(g1.print), g1);
assertEq(objectGlobal(g2.x), g1);
assertEq(isSameCompartment(g1, g2), true);
assertEq(isSameCompartment(g1, Math), true);
// Different-compartment realms have wrappers.
assertEq(objectGlobal(newGlobal({newCompartment: true}).Math), null);
function testCrossRealmProto() {
var g = newGlobal({sameCompartmentAs:this});
for (var i = 0; i < 20; i++) {
var o = Object.create(g.Math);
assertEq(objectGlobal(o), this);
assertEq(o.__proto__, g.Math);
var a = Reflect.construct(Array, [], g.Object);
assertEq(Array.isArray(a), true);
assertEq(objectGlobal(a), this);
assertEq(a.__proto__, g.Object.prototype);
}
}
testCrossRealmProto();
function testSystemNonSystemRealms() {
var systemRealm = newGlobal({newCompartment: true, systemPrincipal: true});
var ex;
try {
var nonSystemRealm = newGlobal({sameCompartmentAs: systemRealm, principal: 10});
} catch(e) {
ex = e;
}
assertEq(ex.toString().includes("non-system realms"), true);
ex = null;
try {
systemRealm = newGlobal({systemPrincipal: true, sameCompartmentAs: this});
} catch(e) {
ex = e;
}
assertEq(ex.toString().includes("non-system realms"), true);
}
testSystemNonSystemRealms();
function testNewObjectCache() {
// NewObjectCache lookup based on the proto should not return a cross-realm
// object.
var g = newGlobal({sameCompartmentAs: this});
var o1 = g.evaluate("Object.create(Math)");
var o2 = Object.create(g.Math);
assertEq(objectGlobal(o1), g);
assertEq(objectGlobal(o2), this);
}
testNewObjectCache();
function testCCWs() {
// CCWs are allocated in the first realm.
var g1 = newGlobal({newCompartment: true});
var g2 = newGlobal({sameCompartmentAs: g1});
g1.o1 = {x: 1};
g2.o2 = {x: 2};
g1 = null;
gc();
g2.o3 = {x: 3};
assertEq(g2.o2.x, 2);
assertEq(g2.o3.x, 3);
}
testCCWs();
function testTypedArrayLazyBuffer(global) {
var arr1 = new global.Int32Array(1);
var arr2 = new Int32Array(arr1);
assertEq(objectGlobal(arr2.buffer), this);
global.buf = arr1.buffer;
global.eval("assertEq(objectGlobal(buf), this);");
}
testTypedArrayLazyBuffer(newGlobal());
testTypedArrayLazyBuffer(newGlobal({sameCompartmentAs: this}));
function testEvalcx() {
var g = newGlobal();
evalcx("this.x = 7", g);
assertEq(g.x, 7);
g = newGlobal({newCompartment: true, invisibleToDebugger: true});
var ex, sb;
try {
sb = g.eval("evalcx('')");
} catch(e) {
ex = e;
}
// Check for either an exception or CCW (with --more-compartments).
assertEq((sb && objectGlobal(sb) === null) ||
ex.toString().includes("visibility"), true);
var lazysb = evalcx("lazy");
Object.setPrototypeOf(lazysb, Math);
assertEq(lazysb.__proto__, Math);
}
testEvalcx();
function testSetProto() {
var o = {};
o.__proto__ = newGlobal();
o.__proto__ = newGlobal();
assertEq(objectGlobal(o), this);
}
testSetProto();