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// Copyright 2018 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Flags: --allow-natives-syntax
// Test JSObjectIsArray in JSTypedLowering for the case that the
// input value is known to be an Array literal.
(function() {
function foo() {
return Array.isArray([]);
}
assertTrue(foo());
assertTrue(foo());
%OptimizeFunctionOnNextCall(foo);
assertTrue(foo());
})();
// Test JSObjectIsArray in JSTypedLowering for the case that the
// input value is known to be a Proxy for an Array literal.
(function() {
function foo() {
return Array.isArray(new Proxy([], {}));
}
assertTrue(foo());
assertTrue(foo());
%OptimizeFunctionOnNextCall(foo);
assertTrue(foo());
})();
// Test JSObjectIsArray in JSTypedLowering for the case that the
// input value is known to be an Object literal.
(function() {
function foo() {
return Array.isArray({});
}
assertFalse(foo());
assertFalse(foo());
%OptimizeFunctionOnNextCall(foo);
assertFalse(foo());
})();
// Test JSObjectIsArray in JSTypedLowering for the case that the
// input value is known to be a Proxy for an Object literal.
(function() {
function foo() {
return Array.isArray(new Proxy({}, {}));
}
assertFalse(foo());
assertFalse(foo());
%OptimizeFunctionOnNextCall(foo);
assertFalse(foo());
})();
// Test JSObjectIsArray in JSTypedLowering for the case that
// TurboFan doesn't know anything about the input value.
(function() {
function foo(x) {
return Array.isArray(x);
}
assertFalse(foo({}));
assertFalse(foo(new Proxy({}, {})));
assertTrue(foo([]));
assertTrue(foo(new Proxy([], {})));
assertThrows(() => {
const {proxy, revoke} = Proxy.revocable([], {});
revoke();
foo(proxy);
}, TypeError);
%OptimizeFunctionOnNextCall(foo);
assertFalse(foo({}));
assertFalse(foo(new Proxy({}, {})));
assertTrue(foo([]));
assertTrue(foo(new Proxy([], {})));
assertThrows(() => {
const {proxy, revoke} = Proxy.revocable([], {});
revoke();
foo(proxy);
}, TypeError);
})();
// Test JSObjectIsArray in JSTypedLowering for the case that
// we pass a revoked proxy and catch the exception locally.
(function() {
function foo(x) {
const {proxy, revoke} = Proxy.revocable(x, {});
revoke();
try {
return Array.isArray(proxy);
} catch (e) {
return e;
}
}
assertInstanceof(foo([]), TypeError);
assertInstanceof(foo({}), TypeError);
%OptimizeFunctionOnNextCall(foo);
assertInstanceof(foo([]), TypeError);
assertInstanceof(foo({}), TypeError);
})();
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