v8/test/mjsunit/es6/debug-liveedit-new-target-2.js
machenbach 15cb3fde7d Reland of [debugger] do not restart frames that reference new.target for liveedit. (patchset #1 id:1 of https://codereview.chromium.org/1493863004/ )
Reason for revert:
Didn't help...

Original issue's description:
> Revert of [debugger] do not restart frames that reference new.target for liveedit. (patchset #1 id:1 of https://codereview.chromium.org/1493363002/ )
>
> Reason for revert:
> [Sheriff] Speculative revert for https://build.chromium.org/p/client.v8.fyi/builders/V8-Blink%20Linux%2064/builds/3225
>
> Original issue's description:
> > [debugger] do not restart frames that reference new.target for liveedit.
> >
> > R=mstarzinger@chromium.org
> >
> > Committed: https://crrev.com/6fca870240bdbb07a365189b5eb0c98fa65b3682
> > Cr-Commit-Position: refs/heads/master@{#32572}
>
> TBR=mstarzinger@chromium.org,yangguo@chromium.org
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
>
> Committed: https://crrev.com/1a61dab34b9849f3f70a42ce69317e22758c53a1
> Cr-Commit-Position: refs/heads/master@{#32582}

TBR=mstarzinger@chromium.org,yangguo@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/1492393003

Cr-Commit-Position: refs/heads/master@{#32587}
2015-12-03 20:21:36 +00:00

64 lines
1.5 KiB
JavaScript

// 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: --expose-debug-as debug --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 Replace(fun, original, patch) {
%ExecuteInDebugContext(function() {
var change_log = [];
try {
var script = Debug.findScript(fun);
var patch_pos = script.source.indexOf(original);
Debug.LiveEdit.TestApi.ApplySingleChunkPatch(
script, patch_pos, original.length, patch, change_log);
} catch (e) {
assertEquals("BLOCKED_NO_NEW_TARGET_ON_RESTART",
change_log[0].functions_on_stack[0].replace_problem);
assertInstanceof(e, Debug.LiveEdit.Failure);
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);