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// Copyright 2016 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
var thrower = {
[Symbol.toPrimitive]: function() {
FAIL;
}
};
function testTrace(func) {
try {
func(thrower);
assertUnreachable();
} catch (e) {
assertTrue(e.stack.indexOf("fromCharCode") >= 0);
}
}
testTrace(String.fromCharCode);
function foo(x) {
return String.fromCharCode(x);
};
%PrepareFunctionForOptimization(foo);
foo(1);
foo(2);
testTrace(foo);
%OptimizeFunctionOnNextCall(foo);
testTrace(foo);
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