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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 --opt
// Test that ObjectIsArrayBufferView lowering works correctly
// in EffectControlLinearizer in the case that the input is
// known to be a HeapObject by TurboFan. For this we use the
// simple trick with an object literal whose field `x` will
// only ever contain HeapObjects and so the representation
// tracking is going to pick it up.
(function() {
function foo(x) {
return ArrayBuffer.isView({x}.x);
}
assertFalse(foo(Symbol()));
assertFalse(foo("some string"));
assertFalse(foo(new Object()));
assertFalse(foo(new Array()));
assertFalse(foo(new ArrayBuffer(1)));
assertTrue(foo(new Int32Array(1)));
assertTrue(foo(new DataView(new ArrayBuffer(1))));
%OptimizeFunctionOnNextCall(foo);
assertFalse(foo(Symbol()));
assertFalse(foo("some string"));
assertFalse(foo(new Object()));
assertFalse(foo(new Array()));
assertFalse(foo(new ArrayBuffer(1)));
assertTrue(foo(new Int32Array(1)));
assertTrue(foo(new DataView(new ArrayBuffer(1))));
assertOptimized(foo);
})();
// Test that ObjectIsArrayBufferView lowering works correctly
// in EffectControlLinearizer in the case that the input is
// some arbitrary tagged value.
(function() {
function foo(x) {
return ArrayBuffer.isView(x);
}
assertFalse(foo(1));
assertFalse(foo(1.1));
assertFalse(foo(Symbol()));
assertFalse(foo("some string"));
assertFalse(foo(new Object()));
assertFalse(foo(new Array()));
assertFalse(foo(new ArrayBuffer(1)));
assertTrue(foo(new Int32Array(1)));
assertTrue(foo(new DataView(new ArrayBuffer(1))));
%OptimizeFunctionOnNextCall(foo);
assertFalse(foo(1));
assertFalse(foo(1.1));
assertFalse(foo(Symbol()));
assertFalse(foo("some string"));
assertFalse(foo(new Object()));
assertFalse(foo(new Array()));
assertFalse(foo(new ArrayBuffer(1)));
assertTrue(foo(new Int32Array(1)));
assertTrue(foo(new DataView(new ArrayBuffer(1))));
assertOptimized(foo);
})();
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