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// Copyright 2015 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 that live-editing a frame to introduce new.target fails.
Debug = debug.Debug
var calls = 0;
var exceptions = 0;
var results = [];
var replace_again;
eval(`
function LogNewTarget() {
calls++;
ReplaceOnce();
results.push(true);
}
`);
function ExecuteInDebugContext(f) {
var result;
var exception = null;
Debug.setListener(function(event) {
if (event == Debug.DebugEvent.Break) {
try {
result = f();
} catch (e) {
// Rethrow this exception later.
exception = e;
}
}
});
debugger;
Debug.setListener(null);
if (exception !== null) throw exception;
return result;
}
function Replace(fun, original, patch) {
ExecuteInDebugContext(function() {
try {
%LiveEditPatchScript(fun, Debug.scriptSource(fun).replace(original, patch));
} catch (e) {
assertEquals(e, 'LiveEdit failed: BLOCKED_BY_NEW_TARGET_IN_RESTART_FRAME');
exceptions++;
}
});
}
function ReplaceOnce(x) {
if (replace_again) {
replace_again = false;
Replace(LogNewTarget, "true", "new.target");
}
}
function Revert() {
Replace(LogNewTarget, "new.target", "true");
}
replace_again = true;
ReplaceOnce();
new LogNewTarget();
Revert();
assertEquals(1, calls);
assertEquals(0, exceptions);
assertEquals([LogNewTarget], results);
replace_again = true;
new LogNewTarget();
assertEquals(2, calls); // No restarts
assertEquals(1, exceptions); // Replace failed.
assertEquals([LogNewTarget, true], results);
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