4d0360aa84
This change extends v8_debug_helper to export a new method that returns a list of all known heap object types. Why? We can substantially improve the user experience in our work-in- progress WinDbg extension if we register handlers not only for v8::internal::Object but for every specific HeapObject type. This has two benefits: - You save a click: if you're expanding a local variable of a more specific type than Object, you can see properties immediately rather than first needing to expand a sub-item that casts the variable to Object. - You retain the type hint: GetObjectProperties accepts a type hint string, and it's super important to pass it when working in a crash dump because the object's Map is probably inaccessible. If we have to cast to Object first, we lose this data. Bug: v8:9376 Change-Id: I4d635a1826574a3d08ac657e848e1fe7b83849fe Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1822859 Reviewed-by: Tobias Tebbi <tebbi@chromium.org> Reviewed-by: Jakob Gruber <jgruber@chromium.org> Commit-Queue: Seth Brenith <seth.brenith@microsoft.com> Cr-Commit-Position: refs/heads/master@{#64331}
16 lines
430 B
C++
16 lines
430 B
C++
// Copyright 2019 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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#include "debug-helper-internal.h"
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#include "torque-generated/class-debug-readers-tq.h"
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namespace di = v8_debug_helper_internal;
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extern "C" {
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V8_DEBUG_HELPER_EXPORT const d::ClassList*
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_v8_debug_helper_ListObjectClasses() {
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return &di::kObjectClassList;
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}
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}
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