• Alexey Kozyatinskiy's avatar
    Reland "[debug] introduced runtime side effect check" · 71018812
    Alexey Kozyatinskiy authored
    This is a reland of 7a2c3713
    
    Original change's description:
    > [debug] introduced runtime side effect check
    > 
    > This CL demonstrates minimum valuable addition to existing debug evaluate
    > without side effects mechanism.
    > With this CL user can evaluate expressions like:
    > [a,b] // create any kind of temporary array literals
    > [a,b].reduce((x,y) => x + y, 0); // use reduce method
    > [1,2,3].fill(2); // change temporary arrays
    > 
    > The core idea: any change of the object created during evaluation without
    > side effects is side effect free. As soon as we try to store this temporary
    > object to object existed before evaluation we will terminate execution.
    > 
    > Implementation:
    > - track all objects allocated during evaluation and mark them as temporary,
    > - patch all bytecodes which change objects.
    > 
    > A little more details (including performance analysis): [1].
    > 
    > [1] https://docs.google.com/document/d/10qqAtZADspPnpYa6SEdYRxrddfKIZJIzbLtGpsZQkRo/edit#
    > 
    > Bug: v8:7588
    > Change-Id: I69f7b96e1ebd7ad0022219e8213211c7be72a111
    > Reviewed-on: https://chromium-review.googlesource.com/972615
    > Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org>
    > Reviewed-by: Yang Guo <yangguo@chromium.org>
    > Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
    > Cr-Commit-Position: refs/heads/master@{#52370}
    
    Bug: v8:7588
    Change-Id: Ibc92bf19155f2ddaedae39b0c576b994e84afcf8
    Reviewed-on: https://chromium-review.googlesource.com/996760Reviewed-by: 's avatarAleksey Kozyatinskiy <kozyatinskiy@chromium.org>
    Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org>
    Cr-Commit-Position: refs/heads/master@{#52373}
    71018812
Name
Last commit
Last update
..
arm Loading commit data...
arm64 Loading commit data...
ia32 Loading commit data...
mips Loading commit data...
mips64 Loading commit data...
ppc Loading commit data...
s390 Loading commit data...
x64 Loading commit data...
OWNERS Loading commit data...
debug-coverage.cc Loading commit data...
debug-coverage.h Loading commit data...
debug-evaluate.cc Loading commit data...
debug-evaluate.h Loading commit data...
debug-frames.cc Loading commit data...
debug-frames.h Loading commit data...
debug-interface.h Loading commit data...
debug-scope-iterator.cc Loading commit data...
debug-scope-iterator.h Loading commit data...
debug-scopes.cc Loading commit data...
debug-scopes.h Loading commit data...
debug-stack-trace-iterator.cc Loading commit data...
debug-stack-trace-iterator.h Loading commit data...
debug-type-profile.cc Loading commit data...
debug-type-profile.h Loading commit data...
debug.cc Loading commit data...
debug.h Loading commit data...
debug.js Loading commit data...
interface-types.h Loading commit data...
liveedit.cc Loading commit data...
liveedit.h Loading commit data...
liveedit.js Loading commit data...
mirrors.js Loading commit data...