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// Copyright 2017 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
(function() {
class O {
get x() {
return 1;
}
}
var o = new O;
function foo(o) {
try {
return o.x;
} catch (e) {
return 0;
}
}
%PrepareFunctionForOptimization(foo);
assertEquals(1, foo(o));
assertEquals(1, foo(o));
%OptimizeFunctionOnNextCall(foo);
assertEquals(1, foo(o));
})();
(function() {
class O {
get x() {
%DeoptimizeFunction(foo);
return 1;
}
}
var o = new O;
function foo(o) {
try {
return o.x;
} catch (e) {
return 0;
}
}
%PrepareFunctionForOptimization(foo);
assertEquals(1, foo(o));
assertEquals(1, foo(o));
%OptimizeFunctionOnNextCall(foo);
assertEquals(1, foo(o));
})();
(function() {
function bar(x) {
throw x;
}
class O {
get x() {
%DeoptimizeFunction(foo);
return bar("x");
}
}
var o = new O;
function foo(o) {
try {
return o.x;
} catch (e) {
return 0;
}
}
%PrepareFunctionForOptimization(foo);
assertEquals(0, foo(o));
assertEquals(0, foo(o));
%OptimizeFunctionOnNextCall(foo);
assertEquals(0, foo(o));
})();
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