d252808011
This bug was triggered by a very specific combination: * A context-allocated variable at script scope. * OSR optimization. * A scheduled breakpoint, which triggers at stack checks. Stack checks differ from other possible breakpoint locations in that the context (among other things) may be in a register and not on the stack, making it impossible to recover during deoptimization. The frame_inspector then returns undefined when asked for the context. In GetFrameDetails, handle this case by omitting all context-allocated variables. BUG=v8:5279 Review-Url: https://codereview.chromium.org/2245603002 Cr-Commit-Position: refs/heads/master@{#38611}
17 lines
379 B
JavaScript
17 lines
379 B
JavaScript
// Copyright 2016 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Flags: --allow-natives-syntax --expose-debug-as debug
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var Debug = debug.Debug;
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Debug.setListener(() => undefined);
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const myObj = {};
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for (let i = 0; i < 10; i++) {
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%OptimizeOsr();
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%ScheduleBreak();
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}
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